diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-31 22:28:31 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-31 22:28:31 +0300 |
| commit | c5951e7c8ee5cb04b8b41c32bf567b90117a2124 (patch) | |
| tree | fae1fde52d66ba050759d85272c62ddc57916061 | |
| parent | b7e573bb4a7a511741f8942b1fb03cfe602ee57f (diff) | |
| parent | 2c4288719806ca0b3de1b742ada26b25a60d6a45 (diff) | |
| download | linux-c5951e7c8ee5cb04b8b41c32bf567b90117a2124.tar.xz | |
Merge tag 'mips_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS changes from Paul Burton:
"Nothing too big or scary in here:
- Support mremap() for the VDSO, primarily to allow CRIU to restore
the VDSO to its checkpointed location.
- Restore the MIPS32 cBPF JIT, after having reverted the enablement
of the eBPF JIT for MIPS32 systems in the 5.5 cycle.
- Improve cop0 counter synchronization behaviour whilst onlining CPUs
by running with interrupts disabled.
- Better match FPU behaviour when emulating multiply-accumulate
instructions on pre-r6 systems that implement IEEE754-2008 style
MACs.
- Loongson64 kernels now build using the MIPS64r2 ISA, allowing them
to take advantage of instructions introduced by r2.
- Support for the Ingenic X1000 SoC & the really nice little CU Neo
development board that's using it.
- Support for WMAC on GARDENA Smart Gateway devices.
- Lots of cleanup & refactoring of SGI IP27 (Origin 2*) support in
preparation for introducing IP35 (Origin 3*) support.
- Various Kconfig & Makefile cleanups"
* tag 'mips_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (60 commits)
MIPS: PCI: Add detection of IOC3 on IO7, IO8, IO9 and Fuel
MIPS: Loongson64: Disable exec hazard
MIPS: Loongson64: Bump ISA level to MIPSR2
MIPS: Make DIEI support as a config option
MIPS: OCTEON: octeon-irq: fix spelling mistake "to" -> "too"
MIPS: asm: local: add barriers for Loongson
MIPS: Loongson64: Select mac2008 only feature
MIPS: Add MAC2008 Support
Revert "MIPS: Add custom serial.h with BASE_BAUD override for generic kernel"
MIPS: sort MIPS and MIPS_GENERIC Kconfig selects alphabetically (again)
MIPS: make CPU_HAS_LOAD_STORE_LR opt-out
MIPS: generic: don't unconditionally select PINCTRL
MIPS: don't explicitly select LIBFDT in Kconfig
MIPS: sync-r4k: do slave counter synchronization with disabled HW interrupts
MIPS: SGI-IP30: Check for valid pointer before using it
MIPS: syscalls: fix indentation of the 'SYSNR' message
MIPS: boot: fix typo in 'vmlinux.lzma.its' target
MIPS: fix indentation of the 'RELOCS' message
dt-bindings: Document loongson vendor-prefix
MIPS: CU1000-Neo: Refresh defconfig to support HWMON and WiFi.
...
95 files changed, 3888 insertions, 1239 deletions
diff --git a/Documentation/devicetree/bindings/mips/ingenic/devices.yaml b/Documentation/devicetree/bindings/mips/ingenic/devices.yaml new file mode 100644 index 000000000000..78dcf6ef3883 --- /dev/null +++ b/Documentation/devicetree/bindings/mips/ingenic/devices.yaml @@ -0,0 +1,35 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mips/ingenic/devices.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Ingenic XBurst based Platforms Device Tree Bindings + +maintainers: + - 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com> +description: | + Devices with a Ingenic XBurst CPU shall have the following properties. + +properties: + $nodename: + const: '/' + compatible: + oneOf: + + - description: Qi Hardware Ben NanoNote + items: + - const: qi,lb60 + + - description: Game Consoles Worldwide GCW Zero + items: + - const: gcw,zero + + - description: MIPS Creator CI20 + items: + - const: img,ci20 + + - description: YSH & ATIL General Board CU Neo + items: + - const: yna,cu1000-neo +... diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml index 1bc7b3c4b591..7fcd48adc276 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml @@ -555,6 +555,8 @@ patternProperties: description: Logic PD, Inc. "^longcheer,.*": description: Longcheer Technology (Shanghai) Co., Ltd. + "^loongson,.*": + description: Loongson Technology Corporation Limited "^lsi,.*": description: LSI Corp. (LSI Logic) "^lwn,.*": @@ -1084,6 +1086,8 @@ patternProperties: description: Shenzhen Xunlong Software CO.,Limited "^xylon,.*": description: Xylon + "^yna,.*": + description: YSH & ATIL "^yones-toptech,.*": description: Yones Toptech Co., Ltd. "^ysoft,.*": diff --git a/MAINTAINERS b/MAINTAINERS index dc833b88c8bc..19da622dd0b1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11116,7 +11116,6 @@ F: drivers/usb/image/microtek.* MIPS M: Ralf Baechle <ralf@linux-mips.org> M: Paul Burton <paulburton@kernel.org> -M: James Hogan <jhogan@kernel.org> L: linux-mips@vger.kernel.org W: http://www.linux-mips.org/ T: git git://git.linux-mips.org/pub/scm/ralf/linux.git diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index a2739a34bb12..797d7f1ad5fe 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -5,9 +5,11 @@ config MIPS select ARCH_32BIT_OFF_T if !64BIT select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT select ARCH_CLOCKSOURCE_DATA + select ARCH_HAS_FORTIFY_SOURCE + select ARCH_HAS_KCOV + select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI) select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_HAS_UBSAN_SANITIZE_ALL - select ARCH_HAS_FORTIFY_SOURCE select ARCH_SUPPORTS_UPROBES select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_CMPXCHG_LOCKREF if 64BIT @@ -47,7 +49,7 @@ config MIPS select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES select HAVE_ASM_MODVERSIONS - select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2 + select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS select HAVE_CONTEXT_TRACKING select HAVE_COPY_THREAD_TLS select HAVE_C_RECORDMCOUNT @@ -55,11 +57,14 @@ config MIPS select HAVE_DEBUG_STACKOVERFLOW select HAVE_DMA_CONTIGUOUS select HAVE_DYNAMIC_FTRACE + select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2 select HAVE_EXIT_THREAD select HAVE_FAST_GUP select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_GRAPH_TRACER select HAVE_FUNCTION_TRACER + select HAVE_GCC_PLUGINS + select HAVE_GENERIC_VDSO select HAVE_IDE select HAVE_IOREMAP_PROT select HAVE_IRQ_EXIT_ON_IRQ_STACK @@ -78,18 +83,14 @@ config MIPS select HAVE_STACKPROTECTOR select HAVE_SYSCALL_TRACEPOINTS select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP - select HAVE_GENERIC_VDSO select IRQ_FORCED_THREADING select ISA if EISA - select MODULES_USE_ELF_RELA if MODULES && 64BIT select MODULES_USE_ELF_REL if MODULES + select MODULES_USE_ELF_RELA if MODULES && 64BIT select PERF_USE_VMALLOC select RTC_LIB select SYSCTL_EXCEPTION_TRACE select VIRT_TO_BUS - select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI) - select ARCH_HAS_KCOV - select HAVE_GCC_PLUGINS menu "Machine selection" @@ -104,20 +105,18 @@ config MIPS_GENERIC select CEVT_R4K select CLKSRC_MIPS_GIC select COMMON_CLK - select CPU_MIPSR2_IRQ_VI select CPU_MIPSR2_IRQ_EI + select CPU_MIPSR2_IRQ_VI select CSRC_R4K select DMA_PERDEV_COHERENT select HAVE_PCI select IRQ_MIPS_CPU - select LIBFDT select MIPS_AUTO_PFN_OFFSET select MIPS_CPU_SCACHE select MIPS_GIC select MIPS_L1_CACHE_SHIFT_7 select NO_EXCEPT_FILL select PCI_DRIVERS_GENERIC - select PINCTRL select SMP_UP if SMP select SWAP_IO_SPACE select SYS_HAS_CPU_MIPS32_R1 @@ -132,11 +131,12 @@ config MIPS_GENERIC select SYS_SUPPORTS_HIGHMEM select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_MICROMIPS - select SYS_SUPPORTS_MIPS_CPS select SYS_SUPPORTS_MIPS16 + select SYS_SUPPORTS_MIPS_CPS select SYS_SUPPORTS_MULTITHREADING select SYS_SUPPORTS_RELOCATABLE select SYS_SUPPORTS_SMARTMIPS + select UHI_BOOT select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN @@ -144,7 +144,6 @@ config MIPS_GENERIC select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN select USE_OF - select UHI_BOOT help Select this to build a kernel which aims to support multiple boards, generally using a flattened device tree passed from the bootloader @@ -403,7 +402,6 @@ config MACH_INGENIC select GENERIC_IRQ_CHIP select BUILTIN_DTB if MIPS_NO_APPENDED_DTB select USE_OF - select LIBFDT config LANTIQ bool "Lantiq based platforms" @@ -510,7 +508,6 @@ config MACH_PISTACHIO select DMA_NONCOHERENT select GPIOLIB select IRQ_MIPS_CPU - select LIBFDT select MFD_SYSCON select MIPS_CPU_SCACHE select MIPS_GIC @@ -548,7 +545,6 @@ config MIPS_MALTA select I8253 select I8259 select IRQ_MIPS_CPU - select LIBFDT select MIPS_BONITO64 select MIPS_CPU_SCACHE select MIPS_GIC @@ -980,7 +976,6 @@ config CAVIUM_OCTEON_SOC select ZONE_DMA32 select HOLES_IN_ZONE select GPIOLIB - select LIBFDT select USE_OF select ARCH_SPARSEMEM_ENABLE select SYS_SUPPORTS_SMP @@ -1223,8 +1218,7 @@ config NO_IOPORT_MAP def_bool n config GENERIC_CSUM - bool - default y if !CPU_HAS_LOAD_STORE_LR + def_bool CPU_NO_LOAD_STORE_LR config GENERIC_ISA_DMA bool @@ -1442,11 +1436,14 @@ config CPU_LOONGSON64 bool "Loongson 64-bit CPU" depends on SYS_HAS_CPU_LOONGSON64 select ARCH_HAS_PHYS_TO_DMA + select CPU_MIPSR2 + select CPU_HAS_PREFETCH select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_HUGEPAGES select CPU_SUPPORTS_MSA - select CPU_HAS_LOAD_STORE_LR + select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT + select CPU_MIPSR2_IRQ_VI select WEAK_ORDERING select WEAK_REORDERING_BEYOND_LLSC select MIPS_ASID_BITS_VARIABLE @@ -1464,8 +1461,6 @@ config CPU_LOONGSON64 config LOONGSON3_ENHANCEMENT bool "New Loongson-3 CPU Enhancements" default n - select CPU_MIPSR2 - select CPU_HAS_PREFETCH depends on CPU_LOONGSON64 help New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A @@ -1542,7 +1537,6 @@ config CPU_MIPS32_R1 bool "MIPS32 Release 1" depends on SYS_HAS_CPU_MIPS32_R1 select CPU_HAS_PREFETCH - select CPU_HAS_LOAD_STORE_LR select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_HIGHMEM help @@ -1560,7 +1554,6 @@ config CPU_MIPS32_R2 bool "MIPS32 Release 2" depends on SYS_HAS_CPU_MIPS32_R2 select CPU_HAS_PREFETCH - select CPU_HAS_LOAD_STORE_LR select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_MSA @@ -1576,6 +1569,7 @@ config CPU_MIPS32_R6 bool "MIPS32 Release 6" depends on SYS_HAS_CPU_MIPS32_R6 select CPU_HAS_PREFETCH + select CPU_NO_LOAD_STORE_LR select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_MSA @@ -1591,7 +1585,6 @@ config CPU_MIPS64_R1 bool "MIPS64 Release 1" depends on SYS_HAS_CPU_MIPS64_R1 select CPU_HAS_PREFETCH - select CPU_HAS_LOAD_STORE_LR select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM @@ -1611,7 +1604,6 @@ config CPU_MIPS64_R2 bool "MIPS64 Release 2" depends on SYS_HAS_CPU_MIPS64_R2 select CPU_HAS_PREFETCH - select CPU_HAS_LOAD_STORE_LR select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM @@ -1629,6 +1621,7 @@ config CPU_MIPS64_R6 bool "MIPS64 Release 6" depends on SYS_HAS_CPU_MIPS64_R6 select CPU_HAS_PREFETCH + select CPU_NO_LOAD_STORE_LR select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM @@ -1646,7 +1639,6 @@ config CPU_R3000 bool "R3000" depends on SYS_HAS_CPU_R3000 select CPU_HAS_WB - select CPU_HAS_LOAD_STORE_LR select CPU_R3K_TLB select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_HIGHMEM @@ -1662,7 +1654,6 @@ config CPU_TX39XX bool "R39XX" depends on SYS_HAS_CPU_TX39XX select CPU_SUPPORTS_32BIT_KERNEL - select CPU_HAS_LOAD_STORE_LR select CPU_R3K_TLB config CPU_VR41XX @@ -1670,7 +1661,6 @@ config CPU_VR41XX depends on SYS_HAS_CPU_VR41XX select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL - select CPU_HAS_LOAD_STORE_LR help The options selects support for the NEC VR4100 series of processors. Only choose this option if you have one of these processors as a @@ -1683,7 +1673,6 @@ config CPU_R4X00 select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HUGEPAGES - select CPU_HAS_LOAD_STORE_LR help MIPS Technologies R4000-series processors other than 4300, including the R4000, R4400, R4600, and 4700. @@ -1692,7 +1681,6 @@ config CPU_TX49XX bool "R49XX" depends on SYS_HAS_CPU_TX49XX select CPU_HAS_PREFETCH - select CPU_HAS_LOAD_STORE_LR select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HUGEPAGES @@ -1703,7 +1691,6 @@ config CPU_R5000 select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HUGEPAGES - select CPU_HAS_LOAD_STORE_LR help MIPS Technologies R5000-series processors other than the Nevada. @@ -1713,7 +1700,6 @@ config CPU_R5500 select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HUGEPAGES - select CPU_HAS_LOAD_STORE_LR help NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV instruction set. @@ -1724,7 +1710,6 @@ config CPU_NEVADA select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HUGEPAGES - select CPU_HAS_LOAD_STORE_LR help QED / PMC-Sierra RM52xx-series ("Nevada") processors. @@ -1732,7 +1717,6 @@ config CPU_R10000 bool "R10000" depends on SYS_HAS_CPU_R10000 select CPU_HAS_PREFETCH - select CPU_HAS_LOAD_STORE_LR select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM @@ -1744,7 +1728,6 @@ config CPU_RM7000 bool "RM7000" depends on SYS_HAS_CPU_RM7000 select CPU_HAS_PREFETCH - select CPU_HAS_LOAD_STORE_LR select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM @@ -1753,7 +1736,6 @@ config CPU_RM7000 config CPU_SB1 bool "SB1" depends on SYS_HAS_CPU_SB1 - select CPU_HAS_LOAD_STORE_LR select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM @@ -1764,7 +1746,6 @@ config CPU_CAVIUM_OCTEON bool "Cavium Octeon processor" depends on SYS_HAS_CPU_CAVIUM_OCTEON select CPU_HAS_PREFETCH - select CPU_HAS_LOAD_STORE_LR select CPU_SUPPORTS_64BIT_KERNEL select WEAK_ORDERING select CPU_SUPPORTS_HIGHMEM @@ -1794,7 +1775,6 @@ config CPU_BMIPS select WEAK_ORDERING select CPU_SUPPORTS_HIGHMEM select CPU_HAS_PREFETCH - select CPU_HAS_LOAD_STORE_LR select CPU_SUPPORTS_CPUFREQ select MIPS_EXTERNAL_TIMER help @@ -1803,7 +1783,6 @@ config CPU_BMIPS config CPU_XLR bool "Netlogic XLR SoC" depends on SYS_HAS_CPU_XLR - select CPU_HAS_LOAD_STORE_LR select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM @@ -1822,7 +1801,6 @@ config CPU_XLP select WEAK_ORDERING select WEAK_REORDERING_BEYOND_LLSC select CPU_HAS_PREFETCH - select CPU_HAS_LOAD_STORE_LR select CPU_MIPSR2 select CPU_SUPPORTS_HUGEPAGES select MIPS_ASID_BITS_VARIABLE @@ -1928,14 +1906,12 @@ config CPU_LOONGSON2EF select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_HUGEPAGES select ARCH_HAS_PHYS_TO_DMA - select CPU_HAS_LOAD_STORE_LR config CPU_LOONGSON32 bool select CPU_MIPS32 select CPU_MIPSR2 select CPU_HAS_PREFETCH - select CPU_HAS_LOAD_STORE_LR select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_CPUFREQ @@ -2110,12 +2086,14 @@ config CPU_MIPSR2 bool default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON select CPU_HAS_RIXI + select CPU_HAS_DIEI if !CPU_DIEI_BROKEN select MIPS_SPRAM config CPU_MIPSR6 bool default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 select CPU_HAS_RIXI + select CPU_HAS_DIEI if !CPU_DIEI_BROKEN select HAVE_ARCH_BITREVERSE select MIPS_ASID_BITS_VARIABLE select MIPS_CRC_SUPPORT @@ -2575,15 +2553,23 @@ config CPU_HAS_WB config XKS01 bool +config CPU_HAS_DIEI + depends on !CPU_DIEI_BROKEN + bool + +config CPU_DIEI_BROKEN + bool + config CPU_HAS_RIXI bool -config CPU_HAS_LOAD_STORE_LR +config CPU_NO_LOAD_STORE_LR bool help - CPU has support for unaligned load and store instructions: + CPU lacks support for unaligned load and store instructions: LWL, LWR, SWL, SWR (Load/store word left/right). - LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems). + LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit + systems). # # Vectored interrupt mode is an R2 feature @@ -2696,6 +2682,14 @@ config NUMA config SYS_SUPPORTS_NUMA bool +config HAVE_SETUP_PER_CPU_AREA + def_bool y + depends on NUMA + +config NEED_PER_CPU_EMBED_FIRST_CHUNK + def_bool y + depends on NUMA + config RELOCATABLE bool "Relocatable kernel" depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) diff --git a/arch/mips/Makefile.postlink b/arch/mips/Makefile.postlink index f03fdc95143e..4b1d3ba3a8a2 100644 --- a/arch/mips/Makefile.postlink +++ b/arch/mips/Makefile.postlink @@ -17,7 +17,7 @@ quiet_cmd_ls3_llsc = LLSCCHK $@ cmd_ls3_llsc = $(CMD_LS3_LLSC) $@ CMD_RELOCS = arch/mips/boot/tools/relocs -quiet_cmd_relocs = RELOCS $@ +quiet_cmd_relocs = RELOCS $@ cmd_relocs = $(CMD_RELOCS) $@ # `@true` prevents complaint when there is nothing to be done diff --git a/arch/mips/boot/Makefile b/arch/mips/boot/Makefile index 528bd73d530a..4ed45ade32a1 100644 --- a/arch/mips/boot/Makefile +++ b/arch/mips/boot/Makefile @@ -123,7 +123,7 @@ $(obj)/vmlinux.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS targets += vmlinux.its targets += vmlinux.gz.its targets += vmlinux.bz2.its -targets += vmlinux.lzmo.its +targets += vmlinux.lzma.its targets += vmlinux.lzo.its quiet_cmd_cpp_its_S = ITS $@ diff --git a/arch/mips/boot/dts/ingenic/Makefile b/arch/mips/boot/dts/ingenic/Makefile index 9cc48441eb71..e1654291a7b0 100644 --- a/arch/mips/boot/dts/ingenic/Makefile +++ b/arch/mips/boot/dts/ingenic/Makefile @@ -2,5 +2,6 @@ dtb-$(CONFIG_JZ4740_QI_LB60) += qi_lb60.dtb dtb-$(CONFIG_JZ4770_GCW0) += gcw0.dtb dtb-$(CONFIG_JZ4780_CI20) += ci20.dtb +dtb-$(CONFIG_X1000_CU1000_NEO) += cu1000-neo.dtb obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y)) diff --git a/arch/mips/boot/dts/ingenic/cu1000-neo.dts b/arch/mips/boot/dts/ingenic/cu1000-neo.dts new file mode 100644 index 000000000000..03abd94acd84 --- /dev/null +++ b/arch/mips/boot/dts/ingenic/cu1000-neo.dts @@ -0,0 +1,170 @@ +// SPDX-License-Identifier: GPL-2.0 +/dts-v1/; + +#include "x1000.dtsi" +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/clock/ingenic,tcu.h> +#include <dt-bindings/interrupt-controller/irq.h> + +/ { + compatible = "yna,cu1000-neo", "ingenic,x1000"; + model = "YSH & ATIL General Board CU Neo"; + + aliases { + serial2 = &uart2; + }; + + chosen { + stdout-path = "serial2:115200n8"; + }; + + memory { + device_type = "memory"; + reg = <0x0 0x04000000>; + }; + + wlan_pwrseq: msc1-pwrseq { + compatible = "mmc-pwrseq-simple"; + + clocks = <&lpoclk>; + clock-names = "ext_clock"; + + reset-gpios = <&gpc 17 GPIO_ACTIVE_LOW>; + post-power-on-delay-ms = <200>; + + lpoclk: ap6212a { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + }; + }; +}; + +&exclk { + clock-frequency = <24000000>; +}; + +&tcu { + /* 1500 kHz for the system timer and clocksource */ + assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER2>; + assigned-clock-rates = <1500000>, <1500000>; + + /* Use channel #0 for the system timer channel #2 for the clocksource */ + ingenic,pwm-channels-mask = <0xfa>; +}; + +&i2c0 { + status = "okay"; + + clock-frequency = <400000>; + + pinctrl-names = "default"; + pinctrl-0 = <&pins_i2c0>; + + ads7830@48 { + compatible = "ti,ads7830"; + reg = <0x48>; + }; +}; + +&uart2 { + pinctrl-names = "default"; + pinctrl-0 = <&pins_uart2>; + + status = "okay"; +}; + +&mac { + phy-mode = "rmii"; + phy-handle = <&lan8720a>; + + pinctrl-names = "default"; + pinctrl-0 = <&pins_mac>; + + snps,reset-gpio = <&gpc 23 GPIO_ACTIVE_LOW>; /* PC23 */ + snps,reset-active-low; + snps,reset-delays-us = <0 10000 30000>; + + status = "okay"; +}; + +&mdio { + status = "okay"; + + lan8720a: ethernet-phy@0 { + compatible = "ethernet-phy-id0007.c0f0", "ethernet-phy-ieee802.3-c22"; + reg = <0>; + }; +}; + +&msc0 { + bus-width = <8>; + max-frequency = <50000000>; + + pinctrl-names = "default"; + pinctrl-0 = <&pins_msc0>; + + non-removable; + + status = "okay"; +}; + +&msc1 { + bus-width = <4>; + max-frequency = <50000000>; + + pinctrl-names = "default"; + pinctrl-0 = <&pins_msc1>; + + #address-cells = <1>; + #size-cells = <0>; + + non-removable; + + mmc-pwrseq = <&wlan_pwrseq>; + + status = "okay"; + + ap6212a: wifi@1 { + compatible = "brcm,bcm4329-fmac"; + reg = <1>; + + interrupt-parent = <&gpc>; + interrupts = <16 IRQ_TYPE_EDGE_FALLING>; + interrupt-names = "host-wake"; + + brcm,drive-strength = <10>; + }; +}; + +&pinctrl { + pins_i2c0: i2c0 { + function = "i2c0"; + groups = "i2c0-data"; + bias-disable; + }; + + pins_uart2: uart2 { + function = "uart2"; + groups = "uart2-data-d"; + bias-disable; + }; + + pins_mac: mac { + function = "mac"; + groups = "mac"; + bias-disable; + }; + + pins_msc0: msc0 { + function = "mmc0"; + groups = "mmc0-1bit", "mmc0-4bit", "mmc0-8bit"; + bias-disable; + }; + + pins_msc1: msc1 { + function = "mmc1"; + groups = "mmc1-1bit", "mmc1-4bit"; + bias-disable; + }; +}; diff --git a/arch/mips/boot/dts/ingenic/x1000.dtsi b/arch/mips/boot/dts/ingenic/x1000.dtsi new file mode 100644 index 000000000000..4994c695a1a7 --- /dev/null +++ b/arch/mips/boot/dts/ingenic/x1000.dtsi @@ -0,0 +1,317 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <dt-bindings/clock/x1000-cgu.h> +#include <dt-bindings/dma/x1000-dma.h> + +/ { + #address-cells = <1>; + #size-cells = <1>; + compatible = "ingenic,x1000", "ingenic,x1000e"; + + cpuintc: interrupt-controller { + #address-cells = <0>; + #interrupt-cells = <1>; + interrupt-controller; + compatible = "mti,cpu-interrupt-controller"; + }; + + intc: interrupt-controller@10001000 { + compatible = "ingenic,x1000-intc", "ingenic,jz4780-intc"; + reg = <0x10001000 0x50>; + + interrupt-controller; + #interrupt-cells = <1>; + + interrupt-parent = <&cpuintc>; + interrupts = <2>; + }; + + exclk: ext { + compatible = "fixed-clock"; + #clock-cells = <0>; + }; + + rtclk: rtc { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + }; + + cgu: x1000-cgu@10000000 { + compatible = "ingenic,x1000-cgu"; + reg = <0x10000000 0x100>; + + #clock-cells = <1>; + + clocks = <&exclk>, <&rtclk>; + clock-names = "ext", "rtc"; + }; + + tcu: timer@10002000 { + compatible = "ingenic,x1000-tcu", + "ingenic,jz4770-tcu", + "simple-mfd"; + reg = <0x10002000 0x1000>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x10002000 0x1000>; + + #clock-cells = <1>; + + clocks = <&cgu X1000_CLK_RTCLK + &cgu X1000_CLK_EXCLK + &cgu X1000_CLK_PCLK>; + clock-names = "rtc", "ext", "pclk"; + + interrupt-controller; + #interrupt-cells = <1>; + + interrupt-parent = <&intc>; + interrupts = <27 26 25>; + + wdt: watchdog@0 { + compatible = "ingenic,x1000-watchdog", "ingenic,jz4780-watchdog"; + reg = <0x0 0x10>; + + clocks = <&cgu X1000_CLK_RTCLK>; + clock-names = "wdt"; + }; + }; + + rtc: rtc@10003000 { + compatible = "ingenic,x1000-rtc", "ingenic,jz4780-rtc"; + reg = <0x10003000 0x4c>; + + interrupt-parent = <&intc>; + interrupts = <32>; + + clocks = <&cgu X1000_CLK_RTCLK>; + clock-names = "rtc"; + }; + + pinctrl: pin-controller@10010000 { + compatible = "ingenic,x1000-pinctrl"; + reg = <0x10010000 0x800>; + #address-cells = <1>; + #size-cells = <0>; + + gpa: gpio@0 { + compatible = "ingenic,x1000-gpio"; + reg = <0>; + + gpio-controller; + gpio-ranges = <&pinctrl 0 0 32>; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + + interrupt-parent = <&intc>; + interrupts = <17>; + }; + + gpb: gpio@1 { + compatible = "ingenic,x1000-gpio"; + reg = <1>; + + gpio-controller; + gpio-ranges = <&pinctrl 0 32 32>; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + + interrupt-parent = <&intc>; + interrupts = <16>; + }; + + gpc: gpio@2 { + compatible = "ingenic,x1000-gpio"; + reg = <2>; + + gpio-controller; + gpio-ranges = <&pinctrl 0 64 32>; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + + interrupt-parent = <&intc>; + interrupts = <15>; + }; + + gpd: gpio@3 { + compatible = "ingenic,x1000-gpio"; + reg = <3>; + + gpio-controller; + gpio-ranges = <&pinctrl 0 96 32>; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + + interrupt-parent = <&intc>; + interrupts = <14>; + }; + }; + + i2c0: i2c-controller@10050000 { + compatible = "ingenic,x1000-i2c"; + reg = <0x10050000 0x1000>; + + #address-cells = <1>; + #size-cells = <0>; + + interrupt-parent = <&intc>; + interrupts = <60>; + + clocks = <&cgu X1000_CLK_I2C0>; + + status = "disabled"; + }; + + i2c1: i2c-controller@10051000 { + compatible = "ingenic,x1000-i2c"; + reg = <0x10051000 0x1000>; + + #address-cells = <1>; + #size-cells = <0>; + + interrupt-parent = <&intc>; + interrupts = <59>; + + clocks = <&cgu X1000_CLK_I2C1>; + + status = "disabled"; + }; + + i2c2: i2c-controller@10052000 { + compatible = "ingenic,x1000-i2c"; + reg = <0x10052000 0x1000>; + + #address-cells = <1>; + #size-cells = <0>; + + interrupt-parent = <&intc>; + interrupts = <58>; + + clocks = <&cgu X1000_CLK_I2C2>; + + status = "disabled"; + }; + + uart0: serial@10030000 { + compatible = "ingenic,x1000-uart"; + reg = <0x10030000 0x100>; + + interrupt-parent = <&intc>; + interrupts = <51>; + + clocks = <&exclk>, <&cgu X1000_CLK_UART0>; + clock-names = "baud", "module"; + + status = "disabled"; + }; + + uart1: serial@10031000 { + compatible = "ingenic,x1000-uart"; + reg = <0x10031000 0x100>; + + interrupt-parent = <&intc>; + interrupts = <50>; + + clocks = <&exclk>, <&cgu X1000_CLK_UART1>; + clock-names = "baud", "module"; + + status = "disabled"; + }; + + uart2: serial@10032000 { + compatible = "ingenic,x1000-uart"; + reg = <0x10032000 0x100>; + + interrupt-parent = <&intc>; + interrupts = <49>; + + clocks = <&exclk>, <&cgu X1000_CLK_UART2>; + clock-names = "baud", "module"; + + status = "disabled"; + }; + + pdma: dma-controller@13420000 { + compatible = "ingenic,x1000-dma"; + reg = <0x13420000 0x400 + 0x13421000 0x40>; + #dma-cells = <2>; + + interrupt-parent = <&intc>; + interrupts = <10>; + + clocks = <&cgu X1000_CLK_PDMA>; + }; + + mac: ethernet@134b0000 { + compatible = "ingenic,x1000-mac", "snps,dwmac"; + reg = <0x134b0000 0x2000>; + + interrupt-parent = <&intc>; + interrupts = <55>; + interrupt-names = "macirq"; + + clocks = <&cgu X1000_CLK_MAC>; + clock-names = "stmmaceth"; + + status = "disabled"; + + mdio: mdio { + compatible = "snps,dwmac-mdio"; + #address-cells = <1>; + #size-cells = <0>; + + status = "disabled"; + }; + }; + + msc0: mmc@13450000 { + compatible = "ingenic,x1000-mmc"; + reg = <0x13450000 0x1000>; + + interrupt-parent = <&intc>; + interrupts = <37>; + + clocks = <&cgu X1000_CLK_MSC0>; + clock-names = "mmc"; + + cap-sd-highspeed; + cap-mmc-highspeed; + cap-sdio-irq; + + dmas = <&pdma X1000_DMA_MSC0_RX 0xffffffff>, + <&pdma X1000_DMA_MSC0_TX 0xffffffff>; + dma-names = "rx", "tx"; + + status = "disabled"; + }; + + msc1: mmc@13460000 { + compatible = "ingenic,x1000-mmc"; + reg = <0x13460000 0x1000>; + + interrupt-parent = <&intc>; + interrupts = <36>; + + clocks = <&cgu X1000_CLK_MSC1>; + clock-names = "mmc"; + + cap-sd-highspeed; + cap-mmc-highspeed; + cap-sdio-irq; + + dmas = <&pdma X1000_DMA_MSC1_RX 0xffffffff>, + <&pdma X1000_DMA_MSC1_TX 0xffffffff>; + dma-names = "rx", "tx"; + + status = "disabled"; + }; +}; diff --git a/arch/mips/boot/dts/ralink/gardena_smart_gateway_mt7688.dts b/arch/mips/boot/dts/ralink/gardena_smart_gateway_mt7688.dts index aa5caaa31104..6069b33cf09f 100644 --- a/arch/mips/boot/dts/ralink/gardena_smart_gateway_mt7688.dts +++ b/arch/mips/boot/dts/ralink/gardena_smart_gateway_mt7688.dts @@ -177,6 +177,9 @@ pinctrl-names = "default"; pinctrl-0 = <&pinmux_i2s_gpio>; /* GPIO0..3 */ + fifo-size = <8>; + tx-threshold = <8>; + rts-gpios = <&gpio 1 GPIO_ACTIVE_LOW>; cts-gpios = <&gpio 2 GPIO_ACTIVE_LOW>; }; @@ -195,3 +198,8 @@ &watchdog { status = "okay"; }; + +&wmac { + status = "okay"; + mediatek,mtd-eeprom = <&factory 0x0000>; +}; diff --git a/arch/mips/boot/dts/ralink/mt7628a.dtsi b/arch/mips/boot/dts/ralink/mt7628a.dtsi index 742bcc1dc2e0..892e8ab863c5 100644 --- a/arch/mips/boot/dts/ralink/mt7628a.dtsi +++ b/arch/mips/boot/dts/ralink/mt7628a.dtsi @@ -285,4 +285,14 @@ interrupt-parent = <&intc>; interrupts = <18>; }; + + wmac: wmac@10300000 { + compatible = "mediatek,mt7628-wmac"; + reg = <0x10300000 0x100000>; + + interrupt-parent = <&cpuintc>; + interrupts = <6>; + + status = "disabled"; + }; }; diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c index f97be32bf699..6bd1e97effdf 100644 --- a/arch/mips/cavium-octeon/octeon-irq.c +++ b/arch/mips/cavium-octeon/octeon-irq.c @@ -2193,7 +2193,7 @@ static int octeon_irq_cib_map(struct irq_domain *d, struct octeon_irq_cib_chip_data *cd; if (hw >= host_data->max_bits) { - pr_err("ERROR: %s mapping %u is to big!\n", + pr_err("ERROR: %s mapping %u is too big!\n", irq_domain_get_of_node(d)->name, (unsigned)hw); return -EINVAL; } diff --git a/arch/mips/configs/cu1000-neo_defconfig b/arch/mips/configs/cu1000-neo_defconfig new file mode 100644 index 000000000000..9b05a8fdabe1 --- /dev/null +++ b/arch/mips/configs/cu1000-neo_defconfig @@ -0,0 +1,117 @@ +CONFIG_LOCALVERSION_AUTO=y +CONFIG_KERNEL_GZIP=y +CONFIG_SYSVIPC=y +CONFIG_NO_HZ_IDLE=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_PREEMPT=y +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_LOG_BUF_SHIFT=14 +CONFIG_CGROUPS=y +CONFIG_MEMCG=y +CONFIG_MEMCG_KMEM=y +CONFIG_CGROUP_SCHED=y +CONFIG_CGROUP_FREEZER=y +CONFIG_CGROUP_DEVICE=y +CONFIG_CGROUP_CPUACCT=y +CONFIG_NAMESPACES=y +CONFIG_USER_NS=y +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_SYSCTL_SYSCALL=y +CONFIG_KALLSYMS_ALL=y +CONFIG_EMBEDDED=y +# CONFIG_VM_EVENT_COUNTERS is not set +# CONFIG_COMPAT_BRK is not set +CONFIG_SLAB=y +CONFIG_MACH_INGENIC=y +CONFIG_X1000_CU1000_NEO=y +CONFIG_HIGHMEM=y +CONFIG_HZ_100=y +# CONFIG_SECCOMP is not set +# CONFIG_SUSPEND is not set +# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set +# CONFIG_COMPACTION is not set +CONFIG_CMA=y +CONFIG_CMA_AREAS=7 +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +CONFIG_CFG80211=y +CONFIG_UEVENT_HELPER=y +CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" +CONFIG_DEVTMPFS=y +# CONFIG_FW_LOADER is not set +# CONFIG_ALLOW_DEV_COREDUMP is not set +CONFIG_NETDEVICES=y +CONFIG_STMMAC_ETH=y +CONFIG_SMSC_PHY=y +CONFIG_BRCMFMAC=y +# CONFIG_INPUT_MOUSEDEV is not set +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_SERIO is not set +CONFIG_VT_HW_CONSOLE_BINDING=y +CONFIG_LEGACY_PTY_COUNT=2 +CONFIG_SERIAL_EARLYCON=y +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_8250_NR_UARTS=3 +CONFIG_SERIAL_8250_RUNTIME_UARTS=3 +CONFIG_SERIAL_8250_INGENIC=y +CONFIG_SERIAL_OF_PLATFORM=y +# CONFIG_HW_RANDOM is not set +CONFIG_I2C=y +CONFIG_I2C_JZ4780=y +CONFIG_GPIO_SYSFS=y +CONFIG_SENSORS_ADS7828=y +CONFIG_WATCHDOG=y +CONFIG_JZ4740_WDT=y +# CONFIG_LCD_CLASS_DEVICE is not set +# CONFIG_BACKLIGHT_CLASS_DEVICE is not set +# CONFIG_VGA_CONSOLE is not set +# CONFIG_HID is not set +# CONFIG_USB_SUPPORT is not set +CONFIG_MMC=y +CONFIG_MMC_JZ4740=y +CONFIG_RTC_CLASS=y +CONFIG_RTC_DRV_JZ4740=y +CONFIG_DMADEVICES=y +CONFIG_DMA_JZ4780=y +# CONFIG_IOMMU_SUPPORT is not set +CONFIG_NVMEM=y +CONFIG_NVMEM_SYSFS=y +CONFIG_EXT4_FS=y +# CONFIG_DNOTIFY is not set +CONFIG_AUTOFS_FS=y +CONFIG_PROC_KCORE=y +# CONFIG_PROC_PAGE_MONITOR is not set +CONFIG_TMPFS=y +CONFIG_CONFIGFS_FS=y +CONFIG_NFS_FS=y +CONFIG_NLS=y +CONFIG_NLS_CODEPAGE_936=y +CONFIG_NLS_CODEPAGE_950=y +CONFIG_NLS_ASCII=y +CONFIG_NLS_ISO8859_1=y +CONFIG_NLS_UTF8=y +CONFIG_CRYPTO_ECHAINIV=y +CONFIG_CRYPTO_AES=y +CONFIG_CRYPTO_DEFLATE=y +CONFIG_CRYPTO_LZO=y +CONFIG_PRINTK_TIME=y +CONFIG_CONSOLE_LOGLEVEL_DEFAULT=15 +CONFIG_CONSOLE_LOGLEVEL_QUIET=15 +CONFIG_MESSAGE_LOGLEVEL_DEFAULT=7 +CONFIG_DEBUG_INFO=y +CONFIG_STRIP_ASM_SYMS=y +CONFIG_DEBUG_FS=y +CONFIG_MAGIC_SYSRQ=y +CONFIG_PANIC_ON_OOPS=y +CONFIG_PANIC_TIMEOUT=10 +# CONFIG_SCHED_DEBUG is not set +# CONFIG_DEBUG_PREEMPT is not set +CONFIG_STACKTRACE=y +# CONFIG_FTRACE is not set +CONFIG_CMDLINE_BOOL=y +CONFIG_CMDLINE="earlycon clk_ignore_unused" diff --git a/arch/mips/configs/generic/board-ocelot.config b/arch/mips/configs/generic/board-ocelot.config index 1134fbb99fc2..7626f2a75b03 100644 --- a/arch/mips/configs/generic/board-ocelot.config +++ b/arch/mips/configs/generic/board-ocelot.config @@ -41,6 +41,7 @@ CONFIG_SPI_DESIGNWARE=y CONFIG_SPI_DW_MMIO=y CONFIG_SPI_SPIDEV=y +CONFIG_PINCTRL=y CONFIG_PINCTRL_OCELOT=y CONFIG_GPIO_SYSFS=y diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild index 61b0fc2026e6..16d1eb4c8fe6 100644 --- a/arch/mips/include/asm/Kbuild +++ b/arch/mips/include/asm/Kbuild @@ -19,6 +19,7 @@ generic-y += preempt.h generic-y += qrwlock.h generic-y += qspinlock.h generic-y += sections.h +generic-y += serial.h generic-y += trace_clock.h generic-y += unaligned.h generic-y += user.h diff --git a/arch/mips/include/asm/bootinfo.h b/arch/mips/include/asm/bootinfo.h index d41a5057bc69..61727785a247 100644 --- a/arch/mips/include/asm/bootinfo.h +++ b/arch/mips/include/asm/bootinfo.h @@ -81,6 +81,7 @@ enum loongson2ef_machine_type { #define MACH_INGENIC_JZ4770 2 /* JZ4770 SOC */ #define MACH_INGENIC_JZ4780 3 /* JZ4780 SOC */ #define MACH_INGENIC_X1000 4 /* X1000 SOC */ +#define MACH_INGENIC_X1830 5 /* X1830 SOC */ extern char *system_type; const char *get_system_type(void); diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index 983a6a7f43a1..de44c92b1c1f 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -555,6 +555,10 @@ # define cpu_has_perf __opt(MIPS_CPU_PERF) #endif +#ifndef cpu_has_mac2008_only +# define cpu_has_mac2008_only __opt(MIPS_CPU_MAC_2008_ONLY) +#endif + #ifdef CONFIG_SMP /* * Some systems share FTLB RAMs between threads within a core (siblings in diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h index ea830783d663..216a22916740 100644 --- a/arch/mips/include/asm/cpu.h +++ b/arch/mips/include/asm/cpu.h @@ -46,7 +46,7 @@ #define PRID_COMP_NETLOGIC 0x0c0000 #define PRID_COMP_CAVIUM 0x0d0000 #define PRID_COMP_LOONGSON 0x140000 -#define PRID_COMP_INGENIC_D0 0xd00000 /* JZ4740, JZ4750 */ +#define PRID_COMP_INGENIC_D0 0xd00000 /* JZ4740, JZ4750, X1830 */ #define PRID_COMP_INGENIC_D1 0xd10000 /* JZ4770, JZ4775, X1000 */ #define PRID_COMP_INGENIC_E1 0xe10000 /* JZ4780 */ @@ -185,7 +185,8 @@ * These are the PRID's for when 23:16 == PRID_COMP_INGENIC_* */ -#define PRID_IMP_XBURST 0x0200 +#define PRID_IMP_XBURST_REV1 0x0200 /* XBurst with MXU SIMD ISA */ +#define PRID_IMP_XBURST_REV2 0x0100 /* XBurst with MXU2 SIMD ISA */ /* * These are the PRID's for when 23:16 == PRID_COMP_NETLOGIC @@ -415,6 +416,7 @@ enum cpu_type_enum { #define MIPS_CPU_MT_PER_TC_PERF_COUNTERS \ BIT_ULL(56) /* CPU has perf counters implemented per TC (MIPSMT ASE) */ #define MIPS_CPU_MMID BIT_ULL(57) /* CPU supports MemoryMapIDs */ +#define MIPS_CPU_MAC_2008_ONLY BIT_ULL(58) /* CPU Only support MAC2008 Fused multiply-add instruction */ /* * CPU ASE encodings diff --git a/arch/mips/include/asm/gio_device.h b/arch/mips/include/asm/gio_device.h index c52948f9ca95..159087f5386e 100644 --- a/arch/mips/include/asm/gio_device.h +++ b/arch/mips/include/asm/gio_device.h @@ -32,8 +32,6 @@ struct gio_driver { }; #define to_gio_driver(drv) container_of(drv, struct gio_driver, driver) -extern const struct gio_device_id *gio_match_device(const struct gio_device_id *, - const struct gio_device *); extern struct gio_device *gio_dev_get(struct gio_device *); extern void gio_dev_put(struct gio_device *); diff --git a/arch/mips/include/asm/hazards.h b/arch/mips/include/asm/hazards.h index a4f48b0f5541..a0b92205f933 100644 --- a/arch/mips/include/asm/hazards.h +++ b/arch/mips/include/asm/hazards.h @@ -23,7 +23,7 @@ * TLB hazards */ #if (defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)) && \ - !defined(CONFIG_CPU_CAVIUM_OCTEON) && !defined(CONFIG_LOONGSON3_ENHANCEMENT) + !defined(CONFIG_CPU_CAVIUM_OCTEON) && !defined(CONFIG_CPU_LOONGSON64) /* * MIPSR2 defines ehb for hazard avoidance @@ -158,7 +158,7 @@ do { \ } while (0) #elif defined(CONFIG_MIPS_ALCHEMY) || defined(CONFIG_CPU_CAVIUM_OCTEON) || \ - defined(CONFIG_CPU_LOONGSON2EF) || defined(CONFIG_LOONGSON3_ENHANCEMENT) || \ + defined(CONFIG_CPU_LOONGSON2EF) || defined(CONFIG_CPU_LOONGSON64) || \ defined(CONFIG_CPU_R10000) || defined(CONFIG_CPU_R5500) || defined(CONFIG_CPU_XLR) /* diff --git a/arch/mips/include/asm/irqflags.h b/arch/mips/include/asm/irqflags.h index c4728bbdf15b..47a8ffc0b413 100644 --- a/arch/mips/include/asm/irqflags.h +++ b/arch/mips/include/asm/irqflags.h @@ -18,7 +18,7 @@ #include <asm/compiler.h> #include <asm/hazards.h> -#if defined(CONFIG_CPU_MIPSR2) || defined (CONFIG_CPU_MIPSR6) +#if defined(CONFIG_CPU_HAS_DIEI) static inline void arch_local_irq_disable(void) { @@ -94,7 +94,7 @@ static inline void arch_local_irq_restore(unsigned long flags) void arch_local_irq_disable(void); unsigned long arch_local_irq_save(void); void arch_local_irq_restore(unsigned long flags); -#endif /* CONFIG_CPU_MIPSR2 || CONFIG_CPU_MIPSR6 */ +#endif /* CONFIG_CPU_HAS_DIEI */ static inline void arch_local_irq_enable(void) { @@ -102,7 +102,7 @@ static inline void arch_local_irq_enable(void) " .set push \n" " .set reorder \n" " .set noat \n" -#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) +#if defined(CONFIG_CPU_HAS_DIEI) " ei \n" #else " mfc0 $1,$12 \n" diff --git a/arch/mips/include/asm/local.h b/arch/mips/include/asm/local.h index 02783e141c32..fef0fda8f82f 100644 --- a/arch/mips/include/asm/local.h +++ b/arch/mips/include/asm/local.h @@ -37,6 +37,7 @@ static __inline__ long local_add_return(long i, local_t * l) __asm__ __volatile__( " .set push \n" " .set arch=r4000 \n" + __SYNC(full, loongson3_war) " \n" "1:" __LL "%1, %2 # local_add_return \n" " addu %0, %1, %3 \n" __SC "%0, %2 \n" @@ -52,6 +53,7 @@ static __inline__ long local_add_return(long i, local_t * l) __asm__ __volatile__( " .set push \n" " .set "MIPS_ISA_ARCH_LEVEL" \n" + __SYNC(full, loongson3_war) " \n" "1:" __LL "%1, %2 # local_add_return \n" " addu %0, %1, %3 \n" __SC "%0, %2 \n" @@ -84,6 +86,7 @@ static __inline__ long local_sub_return(long i, local_t * l) __asm__ __volatile__( " .set push \n" " .set arch=r4000 \n" + __SYNC(full, loongson3_war) " \n" "1:" __LL "%1, %2 # local_sub_return \n" " subu %0, %1, %3 \n" __SC "%0, %2 \n" @@ -99,6 +102,7 @@ static __inline__ long local_sub_return(long i, local_t * l) __asm__ __volatile__( " .set push \n" " .set "MIPS_ISA_ARCH_LEVEL" \n" + __SYNC(full, loongson3_war) " \n" "1:" __LL "%1, %2 # local_sub_return \n" " subu %0, %1, %3 \n" __SC "%0, %2 \n" diff --git a/arch/mips/include/asm/mach-ip27/kernel-entry-init.h b/arch/mips/include/asm/mach-ip27/kernel-entry-init.h index f992c1db876b..3e54f605a70b 100644 --- a/arch/mips/include/asm/mach-ip27/kernel-entry-init.h +++ b/arch/mips/include/asm/mach-ip27/kernel-entry-init.h @@ -10,20 +10,10 @@ #define __ASM_MACH_IP27_KERNEL_ENTRY_H #include <asm/sn/addrs.h> -#include <asm/sn/sn0/hubni.h> +#include <asm/sn/agent.h> #include <asm/sn/klkernvars.h> /* - * Returns the local nasid into res. - */ - .macro GET_NASID_ASM res - dli \res, LOCAL_HUB_ADDR(NI_STATUS_REV_ID) - ld \res, (\res) - and \res, NSRI_NODEID_MASK - dsrl \res, NSRI_NODEID_SHFT - .endm - -/* * TLB bits */ #define PAGE_GLOBAL (1 << 6) diff --git a/arch/mips/include/asm/mach-ip27/mangle-port.h b/arch/mips/include/asm/mach-ip27/mangle-port.h index f6e4912ea062..27c56efa519f 100644 --- a/arch/mips/include/asm/mach-ip27/mangle-port.h +++ b/arch/mips/include/asm/mach-ip27/mangle-port.h @@ -8,7 +8,7 @@ #ifndef __ASM_MACH_IP27_MANGLE_PORT_H #define __ASM_MACH_IP27_MANGLE_PORT_H -#define __swizzle_addr_b(port) (port) +#define __swizzle_addr_b(port) ((port) ^ 3) #define __swizzle_addr_w(port) ((port) ^ 2) #define __swizzle_addr_l(port) (port) #define __swizzle_addr_q(port) (port) @@ -20,6 +20,6 @@ # define ioswabl(a, x) (x) # define __mem_ioswabl(a, x) cpu_to_le32(x) # define ioswabq(a, x) (x) -# define __mem_ioswabq(a, x) cpu_to_le32(x) +# define __mem_ioswabq(a, x) cpu_to_le64(x) #endif /* __ASM_MACH_IP27_MANGLE_PORT_H */ diff --git a/arch/mips/include/asm/mach-ip27/mmzone.h b/arch/mips/include/asm/mach-ip27/mmzone.h index f463826515df..08c36e50a860 100644 --- a/arch/mips/include/asm/mach-ip27/mmzone.h +++ b/arch/mips/include/asm/mach-ip27/mmzone.h @@ -4,7 +4,8 @@ #include <asm/sn/addrs.h> #include <asm/sn/arch.h> -#include <asm/sn/hub.h> +#include <asm/sn/agent.h> +#include <asm/sn/klkernvars.h> #define pa_to_nid(addr) NASID_GET(addr) @@ -12,7 +13,6 @@ struct hub_data { kern_vars_t kern_vars; DECLARE_BITMAP(h_bigwin_used, HUB_NUM_BIG_WINDOW); cpumask_t h_cpus; - unsigned long slice_map; }; struct node_data { diff --git a/arch/mips/include/asm/mach-ip27/topology.h b/arch/mips/include/asm/mach-ip27/topology.h index be61ddcdacab..d66cc53feab8 100644 --- a/arch/mips/include/asm/mach-ip27/topology.h +++ b/arch/mips/include/asm/mach-ip27/topology.h @@ -2,12 +2,12 @@ #ifndef _ASM_MACH_TOPOLOGY_H #define _ASM_MACH_TOPOLOGY_H 1 -#include <asm/sn/hub.h> #include <asm/sn/types.h> #include <asm/mmzone.h> struct cpuinfo_ip27 { nasid_t p_nasid; /* my node ID in numa-as-id-space */ + unsigned short p_speed; /* cpu speed in MHz */ unsigned char p_slice; /* Physical position on node board */ }; diff --git a/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h b/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h index 7dc8d75445a9..4fab38c743dd 100644 --- a/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h +++ b/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h @@ -46,5 +46,7 @@ #define cpu_has_wsbh 1 #define cpu_has_ic_fills_f_dc 1 #define cpu_hwrena_impl_bits 0xc0000000 +#define cpu_has_mac2008_only 1 +#define cpu_has_mips_r2_exec_hazard 0 #endif /* __ASM_MACH_LOONGSON64_CPU_FEATURE_OVERRIDES_H */ diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h index 0d5a30988697..796fe47cfd17 100644 --- a/arch/mips/include/asm/mipsregs.h +++ b/arch/mips/include/asm/mipsregs.h @@ -1101,9 +1101,12 @@ /* * Bits 22:20 of the FPU Status Register will be read as 0, * and should be written as zero. + * MAC2008 was removed in Release 5 so we still treat it as + * reserved. */ #define FPU_CSR_RSVD (_ULCAST_(7) << 20) +#define FPU_CSR_MAC2008 (_ULCAST_(1) << 20) #define FPU_CSR_ABS2008 (_ULCAST_(1) << 19) #define FPU_CSR_NAN2008 (_ULCAST_(1) << 18) diff --git a/arch/mips/include/asm/pci/bridge.h b/arch/mips/include/asm/pci/bridge.h index 3bc630ff9ad4..9c476a0400e0 100644 --- a/arch/mips/include/asm/pci/bridge.h +++ b/arch/mips/include/asm/pci/bridge.h @@ -806,7 +806,8 @@ struct bridge_controller { unsigned long baddr; unsigned long intr_addr; struct irq_domain *domain; - unsigned int pci_int[8]; + unsigned int pci_int[8][2]; + unsigned int int_mapping[8][2]; u32 ioc3_sid[8]; nasid_t nasid; }; diff --git a/arch/mips/include/asm/serial.h b/arch/mips/include/asm/serial.h deleted file mode 100644 index 2777148dbfc5..000000000000 --- a/arch/mips/include/asm/serial.h +++ /dev/null @@ -1,18 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * Copyright (C) 2017 MIPS Tech, LLC - */ -#ifndef __ASM__SERIAL_H -#define __ASM__SERIAL_H - -#ifdef CONFIG_MIPS_GENERIC -/* - * Generic kernels cannot know a correct value for all platforms at - * compile time. Set it to 0 to prevent 8250_early using it - */ -#define BASE_BAUD 0 -#else -#include <asm-generic/serial.h> -#endif - -#endif /* __ASM__SERIAL_H */ diff --git a/arch/mips/include/asm/sn/arch.h b/arch/mips/include/asm/sn/arch.h index f7d3273d9599..9a9682543e89 100644 --- a/arch/mips/include/asm/sn/arch.h +++ b/arch/mips/include/asm/sn/arch.h @@ -25,7 +25,4 @@ #define INVALID_MODULE (moduleid_t)-1 #define INVALID_PARTID (partid_t)-1 -extern nasid_t get_nasid(void); -extern int get_cpu_slice(cpuid_t); - #endif /* _ASM_SN_ARCH_H */ diff --git a/arch/mips/include/asm/sn/hub.h b/arch/mips/include/asm/sn/hub.h deleted file mode 100644 index 45878fbefbae..000000000000 --- a/arch/mips/include/asm/sn/hub.h +++ /dev/null @@ -1,17 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_SN_HUB_H -#define __ASM_SN_HUB_H - -#include <linux/types.h> -#include <linux/cpumask.h> -#include <asm/sn/types.h> -#include <asm/sn/io.h> -#include <asm/sn/klkernvars.h> -#include <asm/xtalk/xtalk.h> - -/* ip27-hubio.c */ -extern unsigned long hub_pio_map(nasid_t nasid, xwidgetnum_t widget, - unsigned long xtalk_addr, size_t size); -extern void hub_pio_init(nasid_t nasid); - -#endif /* __ASM_SN_HUB_H */ diff --git a/arch/mips/include/asm/sn/intr.h b/arch/mips/include/asm/sn/intr.h index fc1348193957..3d6954d370dc 100644 --- a/arch/mips/include/asm/sn/intr.h +++ b/arch/mips/include/asm/sn/intr.h @@ -8,15 +8,6 @@ #ifndef __ASM_SN_INTR_H #define __ASM_SN_INTR_H -/* Number of interrupt levels associated with each interrupt register. */ -#define N_INTPEND_BITS 64 - -#define INT_PEND0_BASELVL 0 -#define INT_PEND1_BASELVL 64 - -#define N_INTPENDJUNK_BITS 8 -#define INTPENDJUNK_CLRBIT 0x80 - /* * Macros to manipulate the interrupt register on the calling hub chip. */ @@ -84,14 +75,6 @@ do { \ #define CPU_RESCHED_B_IRQ 8 #define CPU_CALL_A_IRQ 9 #define CPU_CALL_B_IRQ 10 -#define MSC_MESG_INTR 11 -#define BASE_PCI_IRQ 12 - -/* - * INT_PEND0 again, bits determined by hardware / hardcoded: - */ -#define SDISK_INTR 63 /* SABLE name */ -#define IP_PEND0_6_63 63 /* What is this bit? */ /* * INT_PEND1 hard-coded bits: diff --git a/arch/mips/include/asm/sn/ioc3.h b/arch/mips/include/asm/sn/ioc3.h index 78ef760ddde4..2c09c17cadcd 100644 --- a/arch/mips/include/asm/sn/ioc3.h +++ b/arch/mips/include/asm/sn/ioc3.h @@ -21,50 +21,50 @@ struct ioc3_serialregs { /* SUPERIO uart register map */ struct ioc3_uartregs { + u8 iu_lcr; union { - u8 iu_rbr; /* read only, DLAB == 0 */ - u8 iu_thr; /* write only, DLAB == 0 */ - u8 iu_dll; /* DLAB == 1 */ + u8 iu_iir; /* read only */ + u8 iu_fcr; /* write only */ }; union { u8 iu_ier; /* DLAB == 0 */ u8 iu_dlm; /* DLAB == 1 */ }; union { - u8 iu_iir; /* read only */ - u8 iu_fcr; /* write only */ + u8 iu_rbr; /* read only, DLAB == 0 */ + u8 iu_thr; /* write only, DLAB == 0 */ + u8 iu_dll; /* DLAB == 1 */ }; - u8 iu_lcr; - u8 iu_mcr; - u8 iu_lsr; - u8 iu_msr; u8 iu_scr; + u8 iu_msr; + u8 iu_lsr; + u8 iu_mcr; }; struct ioc3_sioregs { u8 fill[0x141]; /* starts at 0x141 */ - u8 uartc; u8 kbdcg; + u8 uartc; - u8 fill0[0x150 - 0x142 - 1]; + u8 fill0[0x151 - 0x142 - 1]; - u8 pp_data; - u8 pp_dsr; u8 pp_dcr; + u8 pp_dsr; + u8 pp_data; - u8 fill1[0x158 - 0x152 - 1]; + u8 fill1[0x159 - 0x153 - 1]; - u8 pp_fifa; - u8 pp_cfgb; u8 pp_ecr; + u8 pp_cfgb; + u8 pp_fifa; - u8 fill2[0x168 - 0x15a - 1]; + u8 fill2[0x16a - 0x15b - 1]; - u8 rtcad; u8 rtcdat; + u8 rtcad; - u8 fill3[0x170 - 0x169 - 1]; + u8 fill3[0x170 - 0x16b - 1]; struct ioc3_uartregs uartb; /* 0x20170 */ struct ioc3_uartregs uarta; /* 0x20178 */ @@ -598,5 +598,9 @@ struct ioc3_etxd { #define IOC3_SUBSYS_IP30_SYSBOARD 0xc304 #define IOC3_SUBSYS_MENET 0xc305 #define IOC3_SUBSYS_MENET4 0xc306 +#define IOC3_SUBSYS_IO7 0xc307 +#define IOC3_SUBSYS_IO8 0xc308 +#define IOC3_SUBSYS_IO9 0xc309 +#define IOC3_SUBSYS_IP34_SYSBOARD 0xc30A #endif /* MIPS_SN_IOC3_H */ diff --git a/arch/mips/include/asm/sn/klconfig.h b/arch/mips/include/asm/sn/klconfig.h index 467c313d5767..117f85e4bef5 100644 --- a/arch/mips/include/asm/sn/klconfig.h +++ b/arch/mips/include/asm/sn/klconfig.h @@ -889,10 +889,6 @@ typedef union { extern lboard_t *find_lboard(lboard_t *start, unsigned char type); extern klinfo_t *find_component(lboard_t *brd, klinfo_t *kli, unsigned char type); extern klinfo_t *find_first_component(lboard_t *brd, unsigned char type); -extern klcpu_t *nasid_slice_to_cpuinfo(nasid_t, int); extern lboard_t *find_lboard_class(lboard_t *start, unsigned char brd_class); - -extern klcpu_t *sn_get_cpuinfo(cpuid_t cpu); - #endif /* _ASM_SN_KLCONFIG_H */ diff --git a/arch/mips/include/asm/sn/kldir.h b/arch/mips/include/asm/sn/kldir.h index bfb3aec94539..245f59bf3845 100644 --- a/arch/mips/include/asm/sn/kldir.h +++ b/arch/mips/include/asm/sn/kldir.h @@ -1,201 +1,16 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Derived from IRIX <sys/SN/kldir.h>, revision 1.21. - * - * Copyright (C) 1992 - 1997, 1999, 2000 Silicon Graphics, Inc. - * Copyright (C) 1999, 2000 by Ralf Baechle - */ +/* SPDX-License-Identifier: GPL-2.0 */ + #ifndef _ASM_SN_KLDIR_H #define _ASM_SN_KLDIR_H - -/* - * The kldir memory area resides at a fixed place in each node's memory and - * provides pointers to most other IP27 memory areas. This allows us to - * resize and/or relocate memory areas at a later time without breaking all - * firmware and kernels that use them. Indices in the array are - * permanently dedicated to areas listed below. Some memory areas (marked - * below) reside at a permanently fixed location, but are included in the - * directory for completeness. - */ - #define KLDIR_MAGIC 0x434d5f53505f5357 -/* - * The upper portion of the memory map applies during boot - * only and is overwritten by IRIX/SYMMON. - * - * MEMORY MAP PER NODE - * - * 0x2000000 (32M) +-----------------------------------------+ - * | IO6 BUFFERS FOR FLASH ENET IOC3 | - * 0x1F80000 (31.5M) +-----------------------------------------+ - * | IO6 TEXT/DATA/BSS/stack | - * 0x1C00000 (30M) +-----------------------------------------+ - * | IO6 PROM DEBUG TEXT/DATA/BSS/stack | - * 0x0800000 (28M) +-----------------------------------------+ - * | IP27 PROM TEXT/DATA/BSS/stack | - * 0x1B00000 (27M) +-----------------------------------------+ - * | IP27 CFG | - * 0x1A00000 (26M) +-----------------------------------------+ - * | Graphics PROM | - * 0x1800000 (24M) +-----------------------------------------+ - * | 3rd Party PROM drivers | - * 0x1600000 (22M) +-----------------------------------------+ - * | | - * | Free | - * | | - * +-----------------------------------------+ - * | UNIX DEBUG Version | - * 0x190000 (2M--) +-----------------------------------------+ - * | SYMMON | - * | (For UNIX Debug only) | - * 0x34000 (208K) +-----------------------------------------+ - * | SYMMON STACK [NUM_CPU_PER_NODE] | - * | (For UNIX Debug only) | - * 0x25000 (148K) +-----------------------------------------+ - * | KLCONFIG - II (temp) | - * | | - * | ---------------------------- | - * | | - * | UNIX NON-DEBUG Version | - * 0x19000 (100K) +-----------------------------------------+ - * - * - * The lower portion of the memory map contains information that is - * permanent and is used by the IP27PROM, IO6PROM and IRIX. - * - * 0x19000 (100K) +-----------------------------------------+ - * | | - * | PI Error Spools (32K) | - * | | - * 0x12000 (72K) +-----------------------------------------+ - * | Unused | - * 0x11c00 (71K) +-----------------------------------------+ - * | CPU 1 NMI Eframe area | - * 0x11a00 (70.5K) +-----------------------------------------+ - * | CPU 0 NMI Eframe area | - * 0x11800 (70K) +-----------------------------------------+ - * | CPU 1 NMI Register save area | - * 0x11600 (69.5K) +-----------------------------------------+ - * | CPU 0 NMI Register save area | - * 0x11400 (69K) +-----------------------------------------+ - * | GDA (1k) | - * 0x11000 (68K) +-----------------------------------------+ - * | Early cache Exception stack | - * | and/or | - * | kernel/io6prom nmi registers | - * 0x10800 (66k) +-----------------------------------------+ - * | cache error eframe | - * 0x10400 (65K) +-----------------------------------------+ - * | Exception Handlers (UALIAS copy) | - * 0x10000 (64K) +-----------------------------------------+ - * | | - * | | - * | KLCONFIG - I (permanent) (48K) | - * | | - * | | - * | | - * 0x4000 (16K) +-----------------------------------------+ - * | NMI Handler (Protected Page) | - * 0x3000 (12K) +-----------------------------------------+ - * | ARCS PVECTORS (master node only) | - * 0x2c00 (11K) +-----------------------------------------+ - * | ARCS TVECTORS (master node only) | - * 0x2800 (10K) +-----------------------------------------+ - * | LAUNCH [NUM_CPU] | - * 0x2400 (9K) +-----------------------------------------+ - * | Low memory directory (KLDIR) | - * 0x2000 (8K) +-----------------------------------------+ - * | ARCS SPB (1K) | - * 0x1000 (4K) +-----------------------------------------+ - * | Early cache Exception stack | - * | and/or | - * | kernel/io6prom nmi registers | - * 0x800 (2k) +-----------------------------------------+ - * | cache error eframe | - * 0x400 (1K) +-----------------------------------------+ - * | Exception Handlers | - * 0x0 (0K) +-----------------------------------------+ - */ - -#ifdef __ASSEMBLY__ #define KLDIR_OFF_MAGIC 0x00 #define KLDIR_OFF_OFFSET 0x08 #define KLDIR_OFF_POINTER 0x10 #define KLDIR_OFF_SIZE 0x18 #define KLDIR_OFF_COUNT 0x20 #define KLDIR_OFF_STRIDE 0x28 -#endif /* __ASSEMBLY__ */ - -/* - * This is defined here because IP27_SYMMON_STK_SIZE must be at least what - * we define here. Since it's set up in the prom. We can't redefine it later - * and expect more space to be allocated. The way to find out the true size - * of the symmon stacks is to divide SYMMON_STK_SIZE by SYMMON_STK_STRIDE - * for a particular node. - */ -#define SYMMON_STACK_SIZE 0x8000 - -#if defined(PROM) - -/* - * These defines are prom version dependent. No code other than the IP27 - * prom should attempt to use these values. - */ -#define IP27_LAUNCH_OFFSET 0x2400 -#define IP27_LAUNCH_SIZE 0x400 -#define IP27_LAUNCH_COUNT 2 -#define IP27_LAUNCH_STRIDE 0x200 - -#define IP27_KLCONFIG_OFFSET 0x4000 -#define IP27_KLCONFIG_SIZE 0xc000 -#define IP27_KLCONFIG_COUNT 1 -#define IP27_KLCONFIG_STRIDE 0 - -#define IP27_NMI_OFFSET 0x3000 -#define IP27_NMI_SIZE 0x40 -#define IP27_NMI_COUNT 2 -#define IP27_NMI_STRIDE 0x40 - -#define IP27_PI_ERROR_OFFSET 0x12000 -#define IP27_PI_ERROR_SIZE 0x4000 -#define IP27_PI_ERROR_COUNT 1 -#define IP27_PI_ERROR_STRIDE 0 - -#define IP27_SYMMON_STK_OFFSET 0x25000 -#define IP27_SYMMON_STK_SIZE 0xe000 -#define IP27_SYMMON_STK_COUNT 2 -/* IP27_SYMMON_STK_STRIDE must be >= SYMMON_STACK_SIZE */ -#define IP27_SYMMON_STK_STRIDE 0x7000 - -#define IP27_FREEMEM_OFFSET 0x19000 -#define IP27_FREEMEM_SIZE -1 -#define IP27_FREEMEM_COUNT 1 -#define IP27_FREEMEM_STRIDE 0 - -#endif /* PROM */ -/* - * There will be only one of these in a partition so the IO6 must set it up. - */ -#define IO6_GDA_OFFSET 0x11000 -#define IO6_GDA_SIZE 0x400 -#define IO6_GDA_COUNT 1 -#define IO6_GDA_STRIDE 0 - -/* - * save area of kernel nmi regs in the prom format - */ -#define IP27_NMI_KREGS_OFFSET 0x11400 -#define IP27_NMI_KREGS_CPU_SIZE 0x200 -/* - * save area of kernel nmi regs in eframe format - */ -#define IP27_NMI_EFRAME_OFFSET 0x11800 -#define IP27_NMI_EFRAME_SIZE 0x200 #define KLDIR_ENT_SIZE 0x40 #define KLDIR_MAX_ENTRIES (0x400 / 0x40) @@ -214,4 +29,8 @@ typedef struct kldir_ent_s { } kldir_ent_t; #endif /* !__ASSEMBLY__ */ +#ifdef CONFIG_SGI_IP27 +#include <asm/sn/sn0/kldir.h> +#endif + #endif /* _ASM_SN_KLDIR_H */ diff --git a/arch/mips/include/asm/sn/sn0/hub.h b/arch/mips/include/asm/sn/sn0/hub.h index d78dd76d5dcf..c84adde36d41 100644 --- a/arch/mips/include/asm/sn/sn0/hub.h +++ b/arch/mips/include/asm/sn/sn0/hub.h @@ -37,4 +37,26 @@ #define UATTR_MSPEC 2 #define UATTR_UNCAC 3 +#ifdef __ASSEMBLY__ +/* + * Returns the local nasid into res. + */ + .macro GET_NASID_ASM res + dli \res, LOCAL_HUB_ADDR(NI_STATUS_REV_ID) + ld \res, (\res) + and \res, NSRI_NODEID_MASK + dsrl \res, NSRI_NODEID_SHFT + .endm +#else + +/* + * get_nasid() returns the physical node id number of the caller. + */ +static inline nasid_t get_nasid(void) +{ + return (nasid_t)((LOCAL_HUB_L(NI_STATUS_REV_ID) & NSRI_NODEID_MASK) + >> NSRI_NODEID_SHFT); +} +#endif + #endif /* _ASM_SN_SN0_HUB_H */ diff --git a/arch/mips/include/asm/sn/sn0/hubni.h b/arch/mips/include/asm/sn/sn0/hubni.h index b73c4bee65f2..b8253142cb83 100644 --- a/arch/mips/include/asm/sn/sn0/hubni.h +++ b/arch/mips/include/asm/sn/sn0/hubni.h @@ -250,6 +250,14 @@ typedef union hubni_port_error_u { #define NI_LLP_CB_MAX 0xff #define NI_LLP_SN_MAX 0xff +static inline int get_region_shift(void) +{ + if (LOCAL_HUB_L(NI_STATUS_REV_ID) & NSRI_REGIONSIZE_MASK) + return NASID_TO_FINEREG_SHFT; + + return NASID_TO_COARSEREG_SHFT; +} + #endif /* !__ASSEMBLY__ */ #endif /* _ASM_SGI_SN0_HUBNI_H */ diff --git a/arch/mips/include/asm/sn/sn0/ip27.h b/arch/mips/include/asm/sn/sn0/ip27.h deleted file mode 100644 index 3b5efeefcc3f..000000000000 --- a/arch/mips/include/asm/sn/sn0/ip27.h +++ /dev/null @@ -1,85 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Derived from IRIX <sys/SN/SN0/IP27.h>. - * - * Copyright (C) 1992 - 1997, 1999 Silicon Graphics, Inc. - * Copyright (C) 1999, 2006 by Ralf Baechle - */ -#ifndef _ASM_SN_SN0_IP27_H -#define _ASM_SN_SN0_IP27_H - -#include <asm/mipsregs.h> - -/* - * Simple definitions for the masks which remove SW bits from pte. - */ - -#define TLBLO_HWBITSHIFT 0 /* Shift value, for masking */ - -#ifndef __ASSEMBLY__ - -#define CAUSE_BERRINTR IE_IRQ5 - -#define ECCF_CACHE_ERR 0 -#define ECCF_TAGLO 1 -#define ECCF_ECC 2 -#define ECCF_ERROREPC 3 -#define ECCF_PADDR 4 -#define ECCF_SIZE (5 * sizeof(long)) - -#endif /* !__ASSEMBLY__ */ - -#ifdef __ASSEMBLY__ - -/* - * KL_GET_CPUNUM (similar to EV_GET_SPNUM for EVEREST platform) reads - * the processor number of the calling processor. The proc parameters - * must be a register. - */ -#define KL_GET_CPUNUM(proc) \ - dli proc, LOCAL_HUB(0); \ - ld proc, PI_CPU_NUM(proc) - -#endif /* __ASSEMBLY__ */ - -/* - * R10000 status register interrupt bit mask usage for IP27. - */ -#define SRB_SWTIMO IE_SW0 /* 0x0100 */ -#define SRB_NET IE_SW1 /* 0x0200 */ -#define SRB_DEV0 IE_IRQ0 /* 0x0400 */ -#define SRB_DEV1 IE_IRQ1 /* 0x0800 */ -#define SRB_TIMOCLK IE_IRQ2 /* 0x1000 */ -#define SRB_PROFCLK IE_IRQ3 /* 0x2000 */ -#define SRB_ERR IE_IRQ4 /* 0x4000 */ -#define SRB_SCHEDCLK IE_IRQ5 /* 0x8000 */ - -#define SR_IBIT_HI SRB_DEV0 -#define SR_IBIT_PROF SRB_PROFCLK - -#define SRB_SWTIMO_IDX 0 -#define SRB_NET_IDX 1 -#define SRB_DEV0_IDX 2 -#define SRB_DEV1_IDX 3 -#define SRB_TIMOCLK_IDX 4 -#define SRB_PROFCLK_IDX 5 -#define SRB_ERR_IDX 6 -#define SRB_SCHEDCLK_IDX 7 - -#define NUM_CAUSE_INTRS 8 - -#define SCACHE_LINESIZE 128 -#define SCACHE_LINEMASK (SCACHE_LINESIZE - 1) - -#include <asm/sn/addrs.h> - -#define LED_CYCLE_MASK 0x0f -#define LED_CYCLE_SHFT 4 - -#define SEND_NMI(_nasid, _slice) \ - REMOTE_HUB_S((_nasid), (PI_NMI_A + ((_slice) * PI_NMI_OFFSET)), 1) - -#endif /* _ASM_SN_SN0_IP27_H */ diff --git a/arch/mips/include/asm/sn/sn0/kldir.h b/arch/mips/include/asm/sn/sn0/kldir.h new file mode 100644 index 000000000000..1b10af6cbd5e --- /dev/null +++ b/arch/mips/include/asm/sn/sn0/kldir.h @@ -0,0 +1,186 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Derived from IRIX <sys/SN/kldir.h>, revision 1.21. + * + * Copyright (C) 1992 - 1997, 1999, 2000 Silicon Graphics, Inc. + * Copyright (C) 1999, 2000 by Ralf Baechle + */ +#ifndef _ASM_SN_SN0_KLDIR_H +#define _ASM_SN_SN0_KLDIR_H + + +/* + * The kldir memory area resides at a fixed place in each node's memory and + * provides pointers to most other IP27 memory areas. This allows us to + * resize and/or relocate memory areas at a later time without breaking all + * firmware and kernels that use them. Indices in the array are + * permanently dedicated to areas listed below. Some memory areas (marked + * below) reside at a permanently fixed location, but are included in the + * directory for completeness. + */ + +/* + * The upper portion of the memory map applies during boot + * only and is overwritten by IRIX/SYMMON. + * + * MEMORY MAP PER NODE + * + * 0x2000000 (32M) +-----------------------------------------+ + * | IO6 BUFFERS FOR FLASH ENET IOC3 | + * 0x1F80000 (31.5M) +-----------------------------------------+ + * | IO6 TEXT/DATA/BSS/stack | + * 0x1C00000 (30M) +-----------------------------------------+ + * | IO6 PROM DEBUG TEXT/DATA/BSS/stack | + * 0x0800000 (28M) +-----------------------------------------+ + * | IP27 PROM TEXT/DATA/BSS/stack | + * 0x1B00000 (27M) +-----------------------------------------+ + * | IP27 CFG | + * 0x1A00000 (26M) +-----------------------------------------+ + * | Graphics PROM | + * 0x1800000 (24M) +-----------------------------------------+ + * | 3rd Party PROM drivers | + * 0x1600000 (22M) +-----------------------------------------+ + * | | + * | Free | + * | | + * +-----------------------------------------+ + * | UNIX DEBUG Version | + * 0x190000 (2M--) +-----------------------------------------+ + * | SYMMON | + * | (For UNIX Debug only) | + * 0x34000 (208K) +-----------------------------------------+ + * | SYMMON STACK [NUM_CPU_PER_NODE] | + * | (For UNIX Debug only) | + * 0x25000 (148K) +-----------------------------------------+ + * | KLCONFIG - II (temp) | + * | | + * | ---------------------------- | + * | | + * | UNIX NON-DEBUG Version | + * 0x19000 (100K) +-----------------------------------------+ + * + * + * The lower portion of the memory map contains information that is + * permanent and is used by the IP27PROM, IO6PROM and IRIX. + * + * 0x19000 (100K) +-----------------------------------------+ + * | | + * | PI Error Spools (32K) | + * | | + * 0x12000 (72K) +-----------------------------------------+ + * | Unused | + * 0x11c00 (71K) +-----------------------------------------+ + * | CPU 1 NMI Eframe area | + * 0x11a00 (70.5K) +-----------------------------------------+ + * | CPU 0 NMI Eframe area | + * 0x11800 (70K) +-----------------------------------------+ + * | CPU 1 NMI Register save area | + * 0x11600 (69.5K) +-----------------------------------------+ + * | CPU 0 NMI Register save area | + * 0x11400 (69K) +-----------------------------------------+ + * | GDA (1k) | + * 0x11000 (68K) +-----------------------------------------+ + * | Early cache Exception stack | + * | and/or | + * | kernel/io6prom nmi registers | + * 0x10800 (66k) +-----------------------------------------+ + * | cache error eframe | + * 0x10400 (65K) +-----------------------------------------+ + * | Exception Handlers (UALIAS copy) | + * 0x10000 (64K) +-----------------------------------------+ + * | | + * | | + * | KLCONFIG - I (permanent) (48K) | + * | | + * | | + * | | + * 0x4000 (16K) +-----------------------------------------+ + * | NMI Handler (Protected Page) | + * 0x3000 (12K) +-----------------------------------------+ + * | ARCS PVECTORS (master node only) | + * 0x2c00 (11K) +-----------------------------------------+ + * | ARCS TVECTORS (master node only) | + * 0x2800 (10K) +-----------------------------------------+ + * | LAUNCH [NUM_CPU] | + * 0x2400 (9K) +-----------------------------------------+ + * | Low memory directory (KLDIR) | + * 0x2000 (8K) +-----------------------------------------+ + * | ARCS SPB (1K) | + * 0x1000 (4K) +-----------------------------------------+ + * | Early cache Exception stack | + * | and/or | + * | kernel/io6prom nmi registers | + * 0x800 (2k) +-----------------------------------------+ + * | cache error eframe | + * 0x400 (1K) +-----------------------------------------+ + * | Exception Handlers | + * 0x0 (0K) +-----------------------------------------+ + */ + +/* + * This is defined here because IP27_SYMMON_STK_SIZE must be at least what + * we define here. Since it's set up in the prom. We can't redefine it later + * and expect more space to be allocated. The way to find out the true size + * of the symmon stacks is to divide SYMMON_STK_SIZE by SYMMON_STK_STRIDE + * for a particular node. + */ +#define SYMMON_STACK_SIZE 0x8000 + +#if defined(PROM) + +/* + * These defines are prom version dependent. No code other than the IP27 + * prom should attempt to use these values. + */ +#define IP27_LAUNCH_OFFSET 0x2400 +#define IP27_LAUNCH_SIZE 0x400 +#define IP27_LAUNCH_COUNT 2 +#define IP27_LAUNCH_STRIDE 0x200 + +#define IP27_KLCONFIG_OFFSET 0x4000 +#define IP27_KLCONFIG_SIZE 0xc000 +#define IP27_KLCONFIG_COUNT 1 +#define IP27_KLCONFIG_STRIDE 0 + +#define IP27_NMI_OFFSET 0x3000 +#define IP27_NMI_SIZE 0x40 +#define IP27_NMI_COUNT 2 +#define IP27_NMI_STRIDE 0x40 + +#define IP27_PI_ERROR_OFFSET 0x12000 +#define IP27_PI_ERROR_SIZE 0x4000 +#define IP27_PI_ERROR_COUNT 1 +#define IP27_PI_ERROR_STRIDE 0 + +#define IP27_SYMMON_STK_OFFSET 0x25000 +#define IP27_SYMMON_STK_SIZE 0xe000 +#define IP27_SYMMON_STK_COUNT 2 +/* IP27_SYMMON_STK_STRIDE must be >= SYMMON_STACK_SIZE */ +#define IP27_SYMMON_STK_STRIDE 0x7000 + +#define IP27_FREEMEM_OFFSET 0x19000 +#define IP27_FREEMEM_SIZE -1 +#define IP27_FREEMEM_COUNT 1 +#define IP27_FREEMEM_STRIDE 0 + +#endif /* PROM */ +/* + * There will be only one of these in a partition so the IO6 must set it up. + */ +#define IO6_GDA_OFFSET 0x11000 +#define IO6_GDA_SIZE 0x400 +#define IO6_GDA_COUNT 1 +#define IO6_GDA_STRIDE 0 + +/* + * save area of kernel nmi regs in the prom format + */ +#define IP27_NMI_KREGS_OFFSET 0x11400 +#define IP27_NMI_KREGS_CPU_SIZE 0x200 +/* + * save area of kernel nmi regs in eframe format + */ +#define IP27_NMI_EFRAME_OFFSET 0x11800 +#define IP27_NMI_EFRAME_SIZE 0x200 + +#endif /* _ASM_SN_SN0_KLDIR_H */ diff --git a/arch/mips/include/asm/sn/sn_private.h b/arch/mips/include/asm/sn/sn_private.h deleted file mode 100644 index 63a2c30d81c6..000000000000 --- a/arch/mips/include/asm/sn/sn_private.h +++ /dev/null @@ -1,19 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_SN_SN_PRIVATE_H -#define __ASM_SN_SN_PRIVATE_H - -#include <asm/sn/types.h> - -extern nasid_t master_nasid; - -extern void cpu_node_probe(void); -extern void hub_rtc_init(nasid_t nasid); -extern void cpu_time_init(void); -extern void per_cpu_init(void); -extern void install_cpu_nmi_handler(int slice); -extern void install_ipi(void); -extern void setup_replication_mask(void); -extern void replicate_kernel_text(void); -extern unsigned long node_getfirstfree(nasid_t nasid); - -#endif /* __ASM_SN_SN_PRIVATE_H */ diff --git a/arch/mips/include/asm/sn/types.h b/arch/mips/include/asm/sn/types.h index 203c927e84d1..451ba1ee41ad 100644 --- a/arch/mips/include/asm/sn/types.h +++ b/arch/mips/include/asm/sn/types.h @@ -11,6 +11,8 @@ #include <linux/types.h> +#ifndef __ASSEMBLY__ + typedef unsigned long cpuid_t; typedef signed short nasid_t; /* node id in numa-as-id space */ typedef signed char partid_t; /* partition ID type */ @@ -18,4 +20,6 @@ typedef signed short moduleid_t; /* user-visible module number type */ typedef dev_t vertex_hdl_t; /* hardware graph vertex handle */ +#endif + #endif /* _ASM_SN_TYPES_H */ diff --git a/arch/mips/jz4740/Kconfig b/arch/mips/jz4740/Kconfig index 4dd0c446ecec..412d2faa3cdf 100644 --- a/arch/mips/jz4740/Kconfig +++ b/arch/mips/jz4740/Kconfig @@ -16,6 +16,10 @@ config JZ4780_CI20 bool "MIPS Creator CI20" select MACH_JZ4780 +config X1000_CU1000_NEO + bool "YSH & ATIL CU1000 Module with Neo backplane" + select MACH_X1000 + endchoice config MACH_JZ4740 @@ -33,3 +37,9 @@ config MACH_JZ4780 select MIPS_CPU_SCACHE select SYS_HAS_CPU_MIPS32_R2 select SYS_SUPPORTS_HIGHMEM + +config MACH_X1000 + bool + select MIPS_CPU_SCACHE + select SYS_HAS_CPU_MIPS32_R2 + select SYS_SUPPORTS_HIGHMEM diff --git a/arch/mips/jz4740/setup.c b/arch/mips/jz4740/setup.c index dc8ee21e0948..880c26857aff 100644 --- a/arch/mips/jz4740/setup.c +++ b/arch/mips/jz4740/setup.c @@ -44,6 +44,8 @@ static void __init jz4740_detect_mem(void) static unsigned long __init get_board_mach_type(const void *fdt) { + if (!fdt_node_check_compatible(fdt, 0, "ingenic,x1830")) + return MACH_INGENIC_X1830; if (!fdt_node_check_compatible(fdt, 0, "ingenic,x1000")) return MACH_INGENIC_X1000; if (!fdt_node_check_compatible(fdt, 0, "ingenic,jz4780")) @@ -86,6 +88,8 @@ void __init device_tree_init(void) const char *get_system_type(void) { switch (mips_machtype) { + case MACH_INGENIC_X1830: + return "X1830"; case MACH_INGENIC_X1000: return "X1000"; case MACH_INGENIC_JZ4780: diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index c54332697673..6ab6b03d35ba 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -102,7 +102,12 @@ static void cpu_set_fpu_2008(struct cpuinfo_mips *c) if (fir & MIPS_FPIR_HAS2008) { fcsr = read_32bit_cp1_register(CP1_STATUS); - fcsr0 = fcsr & ~(FPU_CSR_ABS2008 | FPU_CSR_NAN2008); + /* + * MAC2008 toolchain never landed in real world, so we're only + * testing wether it can be disabled and don't try to enabled + * it. + */ + fcsr0 = fcsr & ~(FPU_CSR_ABS2008 | FPU_CSR_NAN2008 | FPU_CSR_MAC2008); write_32bit_cp1_register(CP1_STATUS, fcsr0); fcsr0 = read_32bit_cp1_register(CP1_STATUS); @@ -112,6 +117,15 @@ static void cpu_set_fpu_2008(struct cpuinfo_mips *c) write_32bit_cp1_register(CP1_STATUS, fcsr); + if (c->isa_level & (MIPS_CPU_ISA_M32R2 | MIPS_CPU_ISA_M64R2)) { + /* + * The bit for MAC2008 might be reused by R6 in future, + * so we only test for R2-R5. + */ + if (fcsr0 & FPU_CSR_MAC2008) + c->options |= MIPS_CPU_MAC_2008_ONLY; + } + if (!(fcsr0 & FPU_CSR_NAN2008)) c->options |= MIPS_CPU_NAN_LEGACY; if (fcsr1 & FPU_CSR_NAN2008) @@ -1960,10 +1974,8 @@ static inline void cpu_probe_ingenic(struct cpuinfo_mips *c, unsigned int cpu) BUG_ON(!__builtin_constant_p(cpu_has_counter) || cpu_has_counter); switch (c->processor_id & PRID_IMP_MASK) { - case PRID_IMP_XBURST: - c->cputype = CPU_XBURST; - c->writecombine = _CACHE_UNCACHED_ACCELERATED; - __cpu_name[cpu] = "Ingenic JZRISC"; + case PRID_IMP_XBURST_REV1: + /* * The XBurst core by default attempts to avoid branch target * buffer lookups by detecting & special casing loops. This @@ -1971,34 +1983,43 @@ static inline void cpu_probe_ingenic(struct cpuinfo_mips *c, unsigned int cpu) * Set cp0 config7 bit 4 to disable this feature. */ set_c0_config7(MIPS_CONF7_BTB_LOOP_EN); - break; - default: - panic("Unknown Ingenic Processor ID!"); - break; - } - switch (c->processor_id & PRID_COMP_MASK) { - /* - * The config0 register in the XBurst CPUs with a processor ID of - * PRID_COMP_INGENIC_D1 has an abandoned huge page tlb mode, this - * mode is not compatible with the MIPS standard, it will cause - * tlbmiss and into an infinite loop (line 21 in the tlb-funcs.S) - * when starting the init process. After chip reset, the default - * is HPTLB mode, Write 0xa9000000 to cp0 register 5 sel 4 to - * switch back to VTLB mode to prevent getting stuck. - */ - case PRID_COMP_INGENIC_D1: - write_c0_page_ctrl(XBURST_PAGECTRL_HPTLB_DIS); - break; - /* - * The config0 register in the XBurst CPUs with a processor ID of - * PRID_COMP_INGENIC_D0 report themselves as MIPS32r2 compatible, - * but they don't actually support this ISA. - */ - case PRID_COMP_INGENIC_D0: - c->isa_level &= ~MIPS_CPU_ISA_M32R2; + switch (c->processor_id & PRID_COMP_MASK) { + + /* + * The config0 register in the XBurst CPUs with a processor ID of + * PRID_COMP_INGENIC_D0 report themselves as MIPS32r2 compatible, + * but they don't actually support this ISA. + */ + case PRID_COMP_INGENIC_D0: + c->isa_level &= ~MIPS_CPU_ISA_M32R2; + break; + + /* + * The config0 register in the XBurst CPUs with a processor ID of + * PRID_COMP_INGENIC_D1 has an abandoned huge page tlb mode, this + * mode is not compatible with the MIPS standard, it will cause + * tlbmiss and into an infinite loop (line 21 in the tlb-funcs.S) + * when starting the init process. After chip reset, the default + * is HPTLB mode, Write 0xa9000000 to cp0 register 5 sel 4 to + * switch back to VTLB mode to prevent getting stuck. + */ + case PRID_COMP_INGENIC_D1: + write_c0_page_ctrl(XBURST_PAGECTRL_HPTLB_DIS); + break; + + default: + break; + } + /* fall-through */ + case PRID_IMP_XBURST_REV2: + c->cputype = CPU_XBURST; + c->writecombine = _CACHE_UNCACHED_ACCELERATED; + __cpu_name[cpu] = "Ingenic XBurst"; break; + default: + panic("Unknown Ingenic Processor ID!"); break; } } diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index a28057946ed1..1ac2752fb791 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -515,8 +515,7 @@ static void __init request_crashkernel(struct resource *res) ret = request_resource(res, &crashk_res); if (!ret) pr_info("Reserving %ldMB of memory at %ldMB for crashkernel\n", - (unsigned long)((crashk_res.end - - crashk_res.start + 1) >> 20), + (unsigned long)(resource_size(&crashk_res) >> 20), (unsigned long)(crashk_res.start >> 20)); } #else /* !defined(CONFIG_KEXEC) */ @@ -698,8 +697,7 @@ static void __init arch_mem_init(char **cmdline_p) mips_parse_crashkernel(); #ifdef CONFIG_KEXEC if (crashk_res.start != crashk_res.end) - memblock_reserve(crashk_res.start, - crashk_res.end - crashk_res.start + 1); + memblock_reserve(crashk_res.start, resource_size(&crashk_res)); #endif device_tree_init(); sparse_init(); diff --git a/arch/mips/kernel/sync-r4k.c b/arch/mips/kernel/sync-r4k.c index f2973ce87f53..abdd7aaa3311 100644 --- a/arch/mips/kernel/sync-r4k.c +++ b/arch/mips/kernel/sync-r4k.c @@ -90,6 +90,9 @@ void synchronise_count_master(int cpu) void synchronise_count_slave(int cpu) { int i; + unsigned long flags; + + local_irq_save(flags); /* * Not every cpu is online at the time this gets called, @@ -113,5 +116,7 @@ void synchronise_count_slave(int cpu) } /* Arrange for an interrupt in a short while */ write_c0_compare(read_c0_count() + COUNTON); + + local_irq_restore(flags); } #undef NR_LOOPS diff --git a/arch/mips/kernel/syscalls/Makefile b/arch/mips/kernel/syscalls/Makefile index a3d4bec695c6..6efb2f6889a7 100644 --- a/arch/mips/kernel/syscalls/Makefile +++ b/arch/mips/kernel/syscalls/Makefile @@ -18,7 +18,7 @@ quiet_cmd_syshdr = SYSHDR $@ '$(syshdr_pfx_$(basetarget))' \ '$(syshdr_offset_$(basetarget))' -quiet_cmd_sysnr = SYSNR $@ +quiet_cmd_sysnr = SYSNR $@ cmd_sysnr = $(CONFIG_SHELL) '$(sysnr)' '$<' '$@' \ '$(sysnr_abis_$(basetarget))' \ '$(sysnr_pfx_$(basetarget))' \ diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c index 92bd2b0f0548..ca6fc4762d97 100644 --- a/arch/mips/kernel/unaligned.c +++ b/arch/mips/kernel/unaligned.c @@ -131,7 +131,7 @@ do { \ : "r" (addr), "i" (-EFAULT)); \ } while(0) -#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR +#ifndef CONFIG_CPU_NO_LOAD_STORE_LR #define _LoadW(addr, value, res, type) \ do { \ __asm__ __volatile__ ( \ @@ -152,7 +152,7 @@ do { \ : "r" (addr), "i" (-EFAULT)); \ } while(0) -#else /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#else /* CONFIG_CPU_NO_LOAD_STORE_LR */ /* For CPUs without lwl instruction */ #define _LoadW(addr, value, res, type) \ do { \ @@ -187,7 +187,7 @@ do { \ : "r" (addr), "i" (-EFAULT)); \ } while(0) -#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */ #define _LoadHWU(addr, value, res, type) \ do { \ @@ -213,7 +213,7 @@ do { \ : "r" (addr), "i" (-EFAULT)); \ } while(0) -#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR +#ifndef CONFIG_CPU_NO_LOAD_STORE_LR #define _LoadWU(addr, value, res, type) \ do { \ __asm__ __volatile__ ( \ @@ -256,7 +256,7 @@ do { \ : "r" (addr), "i" (-EFAULT)); \ } while(0) -#else /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#else /* CONFIG_CPU_NO_LOAD_STORE_LR */ /* For CPUs without lwl and ldl instructions */ #define _LoadWU(addr, value, res, type) \ do { \ @@ -340,7 +340,7 @@ do { \ : "r" (addr), "i" (-EFAULT)); \ } while(0) -#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */ #define _StoreHW(addr, value, res, type) \ @@ -366,7 +366,7 @@ do { \ : "r" (value), "r" (addr), "i" (-EFAULT));\ } while(0) -#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR +#ifndef CONFIG_CPU_NO_LOAD_STORE_LR #define _StoreW(addr, value, res, type) \ do { \ __asm__ __volatile__ ( \ @@ -407,7 +407,7 @@ do { \ : "r" (value), "r" (addr), "i" (-EFAULT)); \ } while(0) -#else /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#else /* CONFIG_CPU_NO_LOAD_STORE_LR */ #define _StoreW(addr, value, res, type) \ do { \ __asm__ __volatile__ ( \ @@ -483,7 +483,7 @@ do { \ : "memory"); \ } while(0) -#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */ #else /* __BIG_ENDIAN */ @@ -509,7 +509,7 @@ do { \ : "r" (addr), "i" (-EFAULT)); \ } while(0) -#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR +#ifndef CONFIG_CPU_NO_LOAD_STORE_LR #define _LoadW(addr, value, res, type) \ do { \ __asm__ __volatile__ ( \ @@ -530,7 +530,7 @@ do { \ : "r" (addr), "i" (-EFAULT)); \ } while(0) -#else /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#else /* CONFIG_CPU_NO_LOAD_STORE_LR */ /* For CPUs without lwl instruction */ #define _LoadW(addr, value, res, type) \ do { \ @@ -565,7 +565,7 @@ do { \ : "r" (addr), "i" (-EFAULT)); \ } while(0) -#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */ #define _LoadHWU(addr, value, res, type) \ @@ -592,7 +592,7 @@ do { \ : "r" (addr), "i" (-EFAULT)); \ } while(0) -#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR +#ifndef CONFIG_CPU_NO_LOAD_STORE_LR #define _LoadWU(addr, value, res, type) \ do { \ __asm__ __volatile__ ( \ @@ -635,7 +635,7 @@ do { \ : "r" (addr), "i" (-EFAULT)); \ } while(0) -#else /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#else /* CONFIG_CPU_NO_LOAD_STORE_LR */ /* For CPUs without lwl and ldl instructions */ #define _LoadWU(addr, value, res, type) \ do { \ @@ -718,7 +718,7 @@ do { \ : "=&r" (value), "=r" (res) \ : "r" (addr), "i" (-EFAULT)); \ } while(0) -#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */ #define _StoreHW(addr, value, res, type) \ do { \ @@ -743,7 +743,7 @@ do { \ : "r" (value), "r" (addr), "i" (-EFAULT));\ } while(0) -#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR +#ifndef CONFIG_CPU_NO_LOAD_STORE_LR #define _StoreW(addr, value, res, type) \ do { \ __asm__ __volatile__ ( \ @@ -784,7 +784,7 @@ do { \ : "r" (value), "r" (addr), "i" (-EFAULT)); \ } while(0) -#else /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#else /* CONFIG_CPU_NO_LOAD_STORE_LR */ /* For CPUs without swl and sdl instructions */ #define _StoreW(addr, value, res, type) \ do { \ @@ -861,7 +861,7 @@ do { \ : "memory"); \ } while(0) -#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */ #endif #define LoadHWU(addr, value, res) _LoadHWU(addr, value, res, kernel) diff --git a/arch/mips/lib/memcpy.S b/arch/mips/lib/memcpy.S index cdd19d8561e8..f7994d936505 100644 --- a/arch/mips/lib/memcpy.S +++ b/arch/mips/lib/memcpy.S @@ -301,14 +301,14 @@ and t0, src, ADDRMASK PREFS( 0, 2*32(src) ) PREFD( 1, 2*32(dst) ) -#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR +#ifndef CONFIG_CPU_NO_LOAD_STORE_LR bnez t1, .Ldst_unaligned\@ nop bnez t0, .Lsrc_unaligned_dst_aligned\@ -#else +#else /* CONFIG_CPU_NO_LOAD_STORE_LR */ or t0, t0, t1 bnez t0, .Lcopy_unaligned_bytes\@ -#endif +#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */ /* * use delay slot for fall-through * src and dst are aligned; need to compute rem @@ -389,7 +389,7 @@ bne rem, len, 1b .set noreorder -#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR +#ifndef CONFIG_CPU_NO_LOAD_STORE_LR /* * src and dst are aligned, need to copy rem bytes (rem < NBYTES) * A loop would do only a byte at a time with possible branch @@ -491,7 +491,7 @@ bne len, rem, 1b .set noreorder -#endif /* CONFIG_CPU_HAS_LOAD_STORE_LR */ +#endif /* !CONFIG_CPU_NO_LOAD_STORE_LR */ .Lcopy_bytes_checklen\@: beqz len, .Ldone\@ nop @@ -520,7 +520,7 @@ jr ra nop -#ifndef CONFIG_CPU_HAS_LOAD_STORE_LR +#ifdef CONFIG_CPU_NO_LOAD_STORE_LR .Lcopy_unaligned_bytes\@: 1: COPY_BYTE(0) @@ -534,7 +534,7 @@ ADD src, src, 8 b 1b ADD dst, dst, 8 -#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */ .if __memcpy == 1 END(memcpy) .set __memcpy, 0 diff --git a/arch/mips/lib/memset.S b/arch/mips/lib/memset.S index 418611ef13cf..d5449e8a3dfc 100644 --- a/arch/mips/lib/memset.S +++ b/arch/mips/lib/memset.S @@ -115,7 +115,7 @@ #endif .set reorder -#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR +#ifndef CONFIG_CPU_NO_LOAD_STORE_LR R10KCBARRIER(0(ra)) #ifdef __MIPSEB__ EX(LONG_S_L, a1, (a0), .Lfirst_fixup\@) /* make word/dword aligned */ @@ -125,7 +125,7 @@ PTR_SUBU a0, t0 /* long align ptr */ PTR_ADDU a2, t0 /* correct size */ -#else /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#else /* CONFIG_CPU_NO_LOAD_STORE_LR */ #define STORE_BYTE(N) \ EX(sb, a1, N(a0), .Lbyte_fixup\@); \ .set noreorder; \ @@ -150,7 +150,7 @@ ori a0, STORMASK xori a0, STORMASK PTR_ADDIU a0, STORSIZE -#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */ 1: ori t1, a2, 0x3f /* # of full blocks */ xori t1, 0x3f andi t0, a2, 0x40-STORSIZE @@ -185,7 +185,7 @@ .set noreorder beqz a2, 1f -#ifdef CONFIG_CPU_HAS_LOAD_STORE_LR +#ifndef CONFIG_CPU_NO_LOAD_STORE_LR PTR_ADDU a0, a2 /* What's left */ .set reorder R10KCBARRIER(0(ra)) @@ -194,7 +194,7 @@ #else EX(LONG_S_L, a1, -1(a0), .Llast_fixup\@) #endif -#else +#else /* CONFIG_CPU_NO_LOAD_STORE_LR */ PTR_SUBU t0, $0, a2 .set reorder move a2, zero /* No remaining longs */ @@ -211,7 +211,7 @@ EX(sb, a1, 6(a0), .Lbyte_fixup\@) #endif 0: -#endif +#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */ 1: move a2, zero jr ra @@ -234,7 +234,7 @@ .hidden __memset .endif -#ifndef CONFIG_CPU_HAS_LOAD_STORE_LR +#ifdef CONFIG_CPU_NO_LOAD_STORE_LR .Lbyte_fixup\@: /* * unset_bytes = (#bytes - (#unaligned bytes)) - (-#unaligned bytes remaining + 1) + 1 @@ -243,7 +243,7 @@ PTR_SUBU a2, t0 PTR_ADDIU a2, 1 jr ra -#endif /* !CONFIG_CPU_HAS_LOAD_STORE_LR */ +#endif /* CONFIG_CPU_NO_LOAD_STORE_LR */ .Lfirst_fixup\@: /* unset_bytes already in a2 */ diff --git a/arch/mips/lib/mips-atomic.c b/arch/mips/lib/mips-atomic.c index 5530070e0d05..de03838b343b 100644 --- a/arch/mips/lib/mips-atomic.c +++ b/arch/mips/lib/mips-atomic.c @@ -15,7 +15,7 @@ #include <linux/export.h> #include <linux/stringify.h> -#if !defined(CONFIG_CPU_MIPSR2) && !defined(CONFIG_CPU_MIPSR6) +#if !defined(CONFIG_CPU_HAS_DIEI) /* * For cli() we have to insert nops to make sure that the new value @@ -110,4 +110,4 @@ notrace void arch_local_irq_restore(unsigned long flags) } EXPORT_SYMBOL(arch_local_irq_restore); -#endif /* !CONFIG_CPU_MIPSR2 && !CONFIG_CPU_MIPSR6 */ +#endif /* !CONFIG_CPU_HAS_DIEI */ diff --git a/arch/mips/loongson2ef/common/pm.c b/arch/mips/loongson2ef/common/pm.c index 11f4cfd581fb..bcb7ae9777cf 100644 --- a/arch/mips/loongson2ef/common/pm.c +++ b/arch/mips/loongson2ef/common/pm.c @@ -91,7 +91,7 @@ static inline void stop_perf_counters(void) static void loongson_suspend_enter(void) { - static unsigned int cached_cpu_freq; + unsigned int cached_cpu_freq; /* setup wakeup events via enabling the IRQs */ setup_wakeup_events(); diff --git a/arch/mips/loongson64/numa.c b/arch/mips/loongson64/numa.c index ef94a2278561..e5b40c5e3296 100644 --- a/arch/mips/loongson64/numa.c +++ b/arch/mips/loongson64/numa.c @@ -75,7 +75,7 @@ static int __init compute_node_distance(int row, int col) loongson_sysconf.cores_per_package; if (col == row) - return 0; + return LOCAL_DISTANCE; else if (package_row == package_col) return 40; else diff --git a/arch/mips/loongson64/platform.c b/arch/mips/loongson64/platform.c index 13f3404f0030..9674ae1361a8 100644 --- a/arch/mips/loongson64/platform.c +++ b/arch/mips/loongson64/platform.c @@ -27,6 +27,9 @@ static int __init loongson3_platform_init(void) continue; pdev = kzalloc(sizeof(struct platform_device), GFP_KERNEL); + if (!pdev) + return -ENOMEM; + pdev->name = loongson_sysconf.sensors[i].name; pdev->id = loongson_sysconf.sensors[i].id; pdev->dev.platform_data = &loongson_sysconf.sensors[i]; diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c index 710e1f804a54..9701c89e7e14 100644 --- a/arch/mips/math-emu/cp1emu.c +++ b/arch/mips/math-emu/cp1emu.c @@ -1514,16 +1514,28 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, break; case madd_s_op: - handler = fpemu_sp_madd; + if (cpu_has_mac2008_only) + handler = ieee754sp_madd; + else + handler = fpemu_sp_madd; goto scoptop; case msub_s_op: - handler = fpemu_sp_msub; + if (cpu_has_mac2008_only) + handler = ieee754sp_msub; + else + handler = fpemu_sp_msub; goto scoptop; case nmadd_s_op: - handler = fpemu_sp_nmadd; + if (cpu_has_mac2008_only) + handler = ieee754sp_nmadd; + else + handler = fpemu_sp_nmadd; goto scoptop; case nmsub_s_op: - handler = fpemu_sp_nmsub; + if (cpu_has_mac2008_only) + handler = ieee754sp_nmsub; + else + handler = fpemu_sp_nmsub; goto scoptop; scoptop: @@ -1610,15 +1622,27 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, break; case madd_d_op: - handler = fpemu_dp_madd; + if (cpu_has_mac2008_only) + handler = ieee754dp_madd; + else + handler = fpemu_dp_madd; goto dcoptop; case msub_d_op: - handler = fpemu_dp_msub; + if (cpu_has_mac2008_only) + handler = ieee754dp_msub; + else + handler = fpemu_dp_msub; goto dcoptop; case nmadd_d_op: - handler = fpemu_dp_nmadd; + if (cpu_has_mac2008_only) + handler = ieee754dp_nmadd; + else + handler = fpemu_dp_nmadd; goto dcoptop; case nmsub_d_op: + if (cpu_has_mac2008_only) + handler = ieee754dp_nmsub; + else handler = fpemu_dp_nmsub; goto dcoptop; diff --git a/arch/mips/math-emu/dp_maddf.c b/arch/mips/math-emu/dp_maddf.c index 3da0ce44cdef..e24ef374d828 100644 --- a/arch/mips/math-emu/dp_maddf.c +++ b/arch/mips/math-emu/dp_maddf.c @@ -68,6 +68,12 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x, ieee754_clearcx(); + rs = xs ^ ys; + if (flags & MADDF_NEGATE_PRODUCT) + rs ^= 1; + if (flags & MADDF_NEGATE_ADDITION) + zs ^= 1; + /* * Handle the cases when at least one of x, y or z is a NaN. * Order of precedence is sNaN, qNaN and z, x, y. @@ -104,9 +110,7 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x, case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM): case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM): case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF): - if ((zc == IEEE754_CLASS_INF) && - ((!(flags & MADDF_NEGATE_PRODUCT) && (zs != (xs ^ ys))) || - ((flags & MADDF_NEGATE_PRODUCT) && (zs == (xs ^ ys))))) { + if ((zc == IEEE754_CLASS_INF) && (zs != rs)) { /* * Cases of addition of infinities with opposite signs * or subtraction of infinities with same signs. @@ -116,15 +120,10 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x, } /* * z is here either not an infinity, or an infinity having the - * same sign as product (x*y) (in case of MADDF.D instruction) - * or product -(x*y) (in MSUBF.D case). The result must be an - * infinity, and its sign is determined only by the value of - * (flags & MADDF_NEGATE_PRODUCT) and the signs of x and y. + * same sign as product (x*y). The result must be an infinity, + * and its sign is determined only by the sign of product (x*y). */ - if (flags & MADDF_NEGATE_PRODUCT) - return ieee754dp_inf(1 ^ (xs ^ ys)); - else - return ieee754dp_inf(xs ^ ys); + return ieee754dp_inf(rs); case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO): case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM): @@ -135,10 +134,7 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x, return ieee754dp_inf(zs); if (zc == IEEE754_CLASS_ZERO) { /* Handle cases +0 + (-0) and similar ones. */ - if ((!(flags & MADDF_NEGATE_PRODUCT) - && (zs == (xs ^ ys))) || - ((flags & MADDF_NEGATE_PRODUCT) - && (zs != (xs ^ ys)))) + if (zs == rs) /* * Cases of addition of zeros of equal signs * or subtraction of zeroes of opposite signs. @@ -187,9 +183,6 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x, assert(ym & DP_HIDDEN_BIT); re = xe + ye; - rs = xs ^ ys; - if (flags & MADDF_NEGATE_PRODUCT) - rs ^= 1; /* shunt to top of word */ xm <<= 64 - (DP_FBITS + 1); @@ -340,3 +333,27 @@ union ieee754dp ieee754dp_msubf(union ieee754dp z, union ieee754dp x, { return _dp_maddf(z, x, y, MADDF_NEGATE_PRODUCT); } + +union ieee754dp ieee754dp_madd(union ieee754dp z, union ieee754dp x, + union ieee754dp y) +{ + return _dp_maddf(z, x, y, 0); +} + +union ieee754dp ieee754dp_msub(union ieee754dp z, union ieee754dp x, + union ieee754dp y) +{ + return _dp_maddf(z, x, y, MADDF_NEGATE_ADDITION); +} + +union ieee754dp ieee754dp_nmadd(union ieee754dp z, union ieee754dp x, + union ieee754dp y) +{ + return _dp_maddf(z, x, y, MADDF_NEGATE_PRODUCT|MADDF_NEGATE_ADDITION); +} + +union ieee754dp ieee754dp_nmsub(union ieee754dp z, union ieee754dp x, + union ieee754dp y) +{ + return _dp_maddf(z, x, y, MADDF_NEGATE_PRODUCT); +} diff --git a/arch/mips/math-emu/ieee754.h b/arch/mips/math-emu/ieee754.h index b9167bd4eb60..090caa740b1e 100644 --- a/arch/mips/math-emu/ieee754.h +++ b/arch/mips/math-emu/ieee754.h @@ -68,6 +68,14 @@ union ieee754sp ieee754sp_maddf(union ieee754sp z, union ieee754sp x, union ieee754sp y); union ieee754sp ieee754sp_msubf(union ieee754sp z, union ieee754sp x, union ieee754sp y); +union ieee754sp ieee754sp_madd(union ieee754sp z, union ieee754sp x, + union ieee754sp y); +union ieee754sp ieee754sp_msub(union ieee754sp z, union ieee754sp x, + union ieee754sp y); +union ieee754sp ieee754sp_nmadd(union ieee754sp z, union ieee754sp x, + union ieee754sp y); +union ieee754sp ieee754sp_nmsub(union ieee754sp z, union ieee754sp x, + union ieee754sp y); int ieee754sp_2008class(union ieee754sp x); union ieee754sp ieee754sp_fmin(union ieee754sp x, union ieee754sp y); union ieee754sp ieee754sp_fmina(union ieee754sp x, union ieee754sp y); @@ -103,6 +111,14 @@ union ieee754dp ieee754dp_maddf(union ieee754dp z, union ieee754dp x, union ieee754dp y); union ieee754dp ieee754dp_msubf(union ieee754dp z, union ieee754dp x, union ieee754dp y); +union ieee754dp ieee754dp_madd(union ieee754dp z, union ieee754dp x, + union ieee754dp y); +union ieee754dp ieee754dp_msub(union ieee754dp z, union ieee754dp x, + union ieee754dp y); +union ieee754dp ieee754dp_nmadd(union ieee754dp z, union ieee754dp x, + union ieee754dp y); +union ieee754dp ieee754dp_nmsub(union ieee754dp z, union ieee754dp x, + union ieee754dp y); int ieee754dp_2008class(union ieee754dp x); union ieee754dp ieee754dp_fmin(union ieee754dp x, union ieee754dp y); union ieee754dp ieee754dp_fmina(union ieee754dp x, union ieee754dp y); diff --git a/arch/mips/math-emu/ieee754int.h b/arch/mips/math-emu/ieee754int.h index 52b20119e315..2c3b13546ac8 100644 --- a/arch/mips/math-emu/ieee754int.h +++ b/arch/mips/math-emu/ieee754int.h @@ -16,6 +16,7 @@ enum maddf_flags { MADDF_NEGATE_PRODUCT = 1 << 0, + MADDF_NEGATE_ADDITION = 1 << 1, }; static inline void ieee754_clearcx(void) diff --git a/arch/mips/math-emu/sp_maddf.c b/arch/mips/math-emu/sp_maddf.c index d638354add6d..1b85b1a527ac 100644 --- a/arch/mips/math-emu/sp_maddf.c +++ b/arch/mips/math-emu/sp_maddf.c @@ -36,6 +36,12 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x, ieee754_clearcx(); + rs = xs ^ ys; + if (flags & MADDF_NEGATE_PRODUCT) + rs ^= 1; + if (flags & MADDF_NEGATE_ADDITION) + zs ^= 1; + /* * Handle the cases when at least one of x, y or z is a NaN. * Order of precedence is sNaN, qNaN and z, x, y. @@ -73,9 +79,7 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x, case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM): case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM): case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF): - if ((zc == IEEE754_CLASS_INF) && - ((!(flags & MADDF_NEGATE_PRODUCT) && (zs != (xs ^ ys))) || - ((flags & MADDF_NEGATE_PRODUCT) && (zs == (xs ^ ys))))) { + if ((zc == IEEE754_CLASS_INF) && (zs != rs)) { /* * Cases of addition of infinities with opposite signs * or subtraction of infinities with same signs. @@ -85,15 +89,10 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x, } /* * z is here either not an infinity, or an infinity having the - * same sign as product (x*y) (in case of MADDF.D instruction) - * or product -(x*y) (in MSUBF.D case). The result must be an - * infinity, and its sign is determined only by the value of - * (flags & MADDF_NEGATE_PRODUCT) and the signs of x and y. + * same sign as product (x*y). The result must be an infinity, + * and its sign is determined only by the sign of product (x*y). */ - if (flags & MADDF_NEGATE_PRODUCT) - return ieee754sp_inf(1 ^ (xs ^ ys)); - else - return ieee754sp_inf(xs ^ ys); + return ieee754sp_inf(rs); case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO): case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM): @@ -104,10 +103,7 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x, return ieee754sp_inf(zs); if (zc == IEEE754_CLASS_ZERO) { /* Handle cases +0 + (-0) and similar ones. */ - if ((!(flags & MADDF_NEGATE_PRODUCT) - && (zs == (xs ^ ys))) || - ((flags & MADDF_NEGATE_PRODUCT) - && (zs != (xs ^ ys)))) + if (zs == rs) /* * Cases of addition of zeros of equal signs * or subtraction of zeroes of opposite signs. @@ -158,9 +154,6 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x, assert(ym & SP_HIDDEN_BIT); re = xe + ye; - rs = xs ^ ys; - if (flags & MADDF_NEGATE_PRODUCT) - rs ^= 1; /* Multiple 24 bit xm and ym to give 48 bit results */ rm64 = (uint64_t)xm * ym; @@ -260,3 +253,27 @@ union ieee754sp ieee754sp_msubf(union ieee754sp z, union ieee754sp x, { return _sp_maddf(z, x, y, MADDF_NEGATE_PRODUCT); } + +union ieee754sp ieee754sp_madd(union ieee754sp z, union ieee754sp x, + union ieee754sp y) +{ + return _sp_maddf(z, x, y, 0); +} + +union ieee754sp ieee754sp_msub(union ieee754sp z, union ieee754sp x, + union ieee754sp y) +{ + return _sp_maddf(z, x, y, MADDF_NEGATE_ADDITION); +} + +union ieee754sp ieee754sp_nmadd(union ieee754sp z, union ieee754sp x, + union ieee754sp y) +{ + return _sp_maddf(z, x, y, MADDF_NEGATE_PRODUCT|MADDF_NEGATE_ADDITION); +} + +union ieee754sp ieee754sp_nmsub(union ieee754sp z, union ieee754sp x, + union ieee754sp y) +{ + return _sp_maddf(z, x, y, MADDF_NEGATE_PRODUCT); +} diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 50f9ed8c6c1b..79684000de0e 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -508,6 +508,51 @@ void __ref free_initmem(void) free_initmem_default(POISON_FREE_INITMEM); } +#ifdef CONFIG_HAVE_SETUP_PER_CPU_AREA +unsigned long __per_cpu_offset[NR_CPUS] __read_mostly; +EXPORT_SYMBOL(__per_cpu_offset); + +static int __init pcpu_cpu_distance(unsigned int from, unsigned int to) +{ + return node_distance(cpu_to_node(from), cpu_to_node(to)); +} + +static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size, + size_t align) +{ + return memblock_alloc_try_nid(size, align, __pa(MAX_DMA_ADDRESS), + MEMBLOCK_ALLOC_ACCESSIBLE, + cpu_to_node(cpu)); +} + +static void __init pcpu_fc_free(void *ptr, size_t size) +{ + memblock_free_early(__pa(ptr), size); +} + +void __init setup_per_cpu_areas(void) +{ + unsigned long delta; + unsigned int cpu; + int rc; + + /* + * Always reserve area for module percpu variables. That's + * what the legacy allocator did. + */ + rc = pcpu_embed_first_chunk(PERCPU_MODULE_RESERVE, + PERCPU_DYNAMIC_RESERVE, PAGE_SIZE, + pcpu_cpu_distance, + pcpu_fc_alloc, pcpu_fc_free); + if (rc < 0) + panic("Failed to initialize percpu areas."); + + delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start; + for_each_possible_cpu(cpu) + __per_cpu_offset[cpu] = delta + pcpu_unit_offsets[cpu]; +} +#endif + #ifndef CONFIG_MIPS_PGD_C0_CONTEXT unsigned long pgd_current[NR_CPUS]; #endif diff --git a/arch/mips/net/Makefile b/arch/mips/net/Makefile index 2d03af7d6b19..d55912349039 100644 --- a/arch/mips/net/Makefile +++ b/arch/mips/net/Makefile @@ -1,4 +1,5 @@ # SPDX-License-Identifier: GPL-2.0-only # MIPS networking code +obj-$(CONFIG_MIPS_CBPF_JIT) += bpf_jit.o bpf_jit_asm.o obj-$(CONFIG_MIPS_EBPF_JIT) += ebpf_jit.o diff --git a/arch/mips/net/bpf_jit.c b/arch/mips/net/bpf_jit.c new file mode 100644 index 000000000000..0af88622c619 --- /dev/null +++ b/arch/mips/net/bpf_jit.c @@ -0,0 +1,1270 @@ +/* + * Just-In-Time compiler for BPF filters on MIPS + * + * Copyright (c) 2014 Imagination Technologies Ltd. + * Author: Markos Chandras <markos.chandras@imgtec.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + */ + +#include <linux/bitops.h> +#include <linux/compiler.h> +#include <linux/errno.h> +#include <linux/filter.h> +#include <linux/if_vlan.h> +#include <linux/moduleloader.h> +#include <linux/netdevice.h> +#include <linux/string.h> +#include <linux/slab.h> +#include <linux/types.h> +#include <asm/asm.h> +#include <asm/bitops.h> +#include <asm/cacheflush.h> +#include <asm/cpu-features.h> +#include <asm/uasm.h> + +#include "bpf_jit.h" + +/* ABI + * r_skb_hl SKB header length + * r_data SKB data pointer + * r_off Offset + * r_A BPF register A + * r_X BPF register X + * r_skb *skb + * r_M *scratch memory + * r_skb_len SKB length + * + * On entry (*bpf_func)(*skb, *filter) + * a0 = MIPS_R_A0 = skb; + * a1 = MIPS_R_A1 = filter; + * + * Stack + * ... + * M[15] + * M[14] + * M[13] + * ... + * M[0] <-- r_M + * saved reg k-1 + * saved reg k-2 + * ... + * saved reg 0 <-- r_sp + * <no argument area> + * + * Packet layout + * + * <--------------------- len ------------------------> + * <--skb-len(r_skb_hl)-->< ----- skb->data_len ------> + * ---------------------------------------------------- + * | skb->data | + * ---------------------------------------------------- + */ + +#define ptr typeof(unsigned long) + +#define SCRATCH_OFF(k) (4 * (k)) + +/* JIT flags */ +#define SEEN_CALL (1 << BPF_MEMWORDS) +#define SEEN_SREG_SFT (BPF_MEMWORDS + 1) +#define SEEN_SREG_BASE (1 << SEEN_SREG_SFT) +#define SEEN_SREG(x) (SEEN_SREG_BASE << (x)) +#define SEEN_OFF SEEN_SREG(2) +#define SEEN_A SEEN_SREG(3) +#define SEEN_X SEEN_SREG(4) +#define SEEN_SKB SEEN_SREG(5) +#define SEEN_MEM SEEN_SREG(6) +/* SEEN_SK_DATA also implies skb_hl an skb_len */ +#define SEEN_SKB_DATA (SEEN_SREG(7) | SEEN_SREG(1) | SEEN_SREG(0)) + +/* Arguments used by JIT */ +#define ARGS_USED_BY_JIT 2 /* only applicable to 64-bit */ + +#define SBIT(x) (1 << (x)) /* Signed version of BIT() */ + +/** + * struct jit_ctx - JIT context + * @skf: The sk_filter + * @prologue_bytes: Number of bytes for prologue + * @idx: Instruction index + * @flags: JIT flags + * @offsets: Instruction offsets + * @target: Memory location for the compiled filter + */ +struct jit_ctx { + const struct bpf_prog *skf; + unsigned int prologue_bytes; + u32 idx; + u32 flags; + u32 *offsets; + u32 *target; +}; + + +static inline int optimize_div(u32 *k) +{ + /* power of 2 divides can be implemented with right shift */ + if (!(*k & (*k-1))) { + *k = ilog2(*k); + return 1; + } + + return 0; +} + +static inline void emit_jit_reg_move(ptr dst, ptr src, struct jit_ctx *ctx); + +/* Simply emit the instruction if the JIT memory space has been allocated */ +#define emit_instr(ctx, func, ...) \ +do { \ + if ((ctx)->target != NULL) { \ + u32 *p = &(ctx)->target[ctx->idx]; \ + uasm_i_##func(&p, ##__VA_ARGS__); \ + } \ + (ctx)->idx++; \ +} while (0) + +/* + * Similar to emit_instr but it must be used when we need to emit + * 32-bit or 64-bit instructions + */ +#define emit_long_instr(ctx, func, ...) \ +do { \ + if ((ctx)->target != NULL) { \ + u32 *p = &(ctx)->target[ctx->idx]; \ + UASM_i_##func(&p, ##__VA_ARGS__); \ + } \ + (ctx)->idx++; \ +} while (0) + +/* Determine if immediate is within the 16-bit signed range */ +static inline bool is_range16(s32 imm) +{ + return !(imm >= SBIT(15) || imm < -SBIT(15)); +} + +static inline void emit_addu(unsigned int dst, unsigned int src1, + unsigned int src2, struct jit_ctx *ctx) +{ + emit_instr(ctx, addu, dst, src1, src2); +} + +static inline void emit_nop(struct jit_ctx *ctx) +{ + emit_instr(ctx, nop); +} + +/* Load a u32 immediate to a register */ +static inline void emit_load_imm(unsigned int dst, u32 imm, struct jit_ctx *ctx) +{ + if (ctx->target != NULL) { + /* addiu can only handle s16 */ + if (!is_range16(imm)) { + u32 *p = &ctx->target[ctx->idx]; + uasm_i_lui(&p, r_tmp_imm, (s32)imm >> 16); + p = &ctx->target[ctx->idx + 1]; + uasm_i_ori(&p, dst, r_tmp_imm, imm & 0xffff); + } else { + u32 *p = &ctx->target[ctx->idx]; + uasm_i_addiu(&p, dst, r_zero, imm); + } + } + ctx->idx++; + + if (!is_range16(imm)) + ctx->idx++; +} + +static inline void emit_or(unsigned int dst, unsigned int src1, + unsigned int src2, struct jit_ctx *ctx) +{ + emit_instr(ctx, or, dst, src1, src2); +} + +static inline void emit_ori(unsigned int dst, unsigned src, u32 imm, + struct jit_ctx *ctx) +{ + if (imm >= BIT(16)) { + emit_load_imm(r_tmp, imm, ctx); + emit_or(dst, src, r_tmp, ctx); + } else { + emit_instr(ctx, ori, dst, src, imm); + } +} + +static inline void emit_daddiu(unsigned int dst, unsigned int src, + int imm, struct jit_ctx *ctx) +{ + /* + * Only used for stack, so the imm is relatively small + * and it fits in 15-bits + */ + emit_instr(ctx, daddiu, dst, src, imm); +} + +static inline void emit_addiu(unsigned int dst, unsigned int src, + u32 imm, struct jit_ctx *ctx) +{ + if (!is_range16(imm)) { + emit_load_imm(r_tmp, imm, ctx); + emit_addu(dst, r_tmp, src, ctx); + } else { + emit_instr(ctx, addiu, dst, src, imm); + } +} + +static inline void emit_and(unsigned int dst, unsigned int src1, + unsigned int src2, struct jit_ctx *ctx) +{ + emit_instr(ctx, and, dst, src1, src2); +} + +static inline void emit_andi(unsigned int dst, unsigned int src, + u32 imm, struct jit_ctx *ctx) +{ + /* If imm does not fit in u16 then load it to register */ + if (imm >= BIT(16)) { + emit_load_imm(r_tmp, imm, ctx); + emit_and(dst, src, r_tmp, ctx); + } else { + emit_instr(ctx, andi, dst, src, imm); + } +} + +static inline void emit_xor(unsigned int dst, unsigned int src1, + unsigned int src2, struct jit_ctx *ctx) +{ + emit_instr(ctx, xor, dst, src1, src2); +} + +static inline void emit_xori(ptr dst, ptr src, u32 imm, struct jit_ctx *ctx) +{ + /* If imm does not fit in u16 then load it to register */ + if (imm >= BIT(16)) { + emit_load_imm(r_tmp, imm, ctx); + emit_xor(dst, src, r_tmp, ctx); + } else { + emit_instr(ctx, xori, dst, src, imm); + } +} + +static inline void emit_stack_offset(int offset, struct jit_ctx *ctx) +{ + emit_long_instr(ctx, ADDIU, r_sp, r_sp, offset); +} + +static inline void emit_subu(unsigned int dst, unsigned int src1, + unsigned int src2, struct jit_ctx *ctx) +{ + emit_instr(ctx, subu, dst, src1, src2); +} + +static inline void emit_neg(unsigned int reg, struct jit_ctx *ctx) +{ + emit_subu(reg, r_zero, reg, ctx); +} + +static inline void emit_sllv(unsigned int dst, unsigned int src, + unsigned int sa, struct jit_ctx *ctx) +{ + emit_instr(ctx, sllv, dst, src, sa); +} + +static inline void emit_sll(unsigned int dst, unsigned int src, + unsigned int sa, struct jit_ctx *ctx) +{ + /* sa is 5-bits long */ + if (sa >= BIT(5)) + /* Shifting >= 32 results in zero */ + emit_jit_reg_move(dst, r_zero, ctx); + else + emit_instr(ctx, sll, dst, src, sa); +} + +static inline void emit_srlv(unsigned int dst, unsigned int src, + unsigned int sa, struct jit_ctx *ctx) +{ + emit_instr(ctx, srlv, dst, src, sa); +} + +static inline void emit_srl(unsigned int dst, unsigned int src, + unsigned int sa, struct jit_ctx *ctx) +{ + /* sa is 5-bits long */ + if (sa >= BIT(5)) + /* Shifting >= 32 results in zero */ + emit_jit_reg_move(dst, r_zero, ctx); + else + emit_instr(ctx, srl, dst, src, sa); +} + +static inline void emit_slt(unsigned int dst, unsigned int src1, + unsigned int src2, struct jit_ctx *ctx) +{ + emit_instr(ctx, slt, dst, src1, src2); +} + +static inline void emit_sltu(unsigned int dst, unsigned int src1, + unsigned int src2, struct jit_ctx *ctx) +{ + emit_instr(ctx, sltu, dst, src1, src2); +} + +static inline void emit_sltiu(unsigned dst, unsigned int src, + unsigned int imm, struct jit_ctx *ctx) +{ + /* 16 bit immediate */ + if (!is_range16((s32)imm)) { + emit_load_imm(r_tmp, imm, ctx); + emit_sltu(dst, src, r_tmp, ctx); + } else { + emit_instr(ctx, sltiu, dst, src, imm); + } + +} + +/* Store register on the stack */ +static inline void emit_store_stack_reg(ptr reg, ptr base, + unsigned int offset, + struct jit_ctx *ctx) +{ + emit_long_instr(ctx, SW, reg, offset, base); +} + +static inline void emit_store(ptr reg, ptr base, unsigned int offset, + struct jit_ctx *ctx) +{ + emit_instr(ctx, sw, reg, offset, base); +} + +static inline void emit_load_stack_reg(ptr reg, ptr base, + unsigned int offset, + struct jit_ctx *ctx) +{ + emit_long_instr(ctx, LW, reg, offset, base); +} + +static inline void emit_load(unsigned int reg, unsigned int base, + unsigned int offset, struct jit_ctx *ctx) +{ + emit_instr(ctx, lw, reg, offset, base); +} + +static inline void emit_load_byte(unsigned int reg, unsigned int base, + unsigned int offset, struct jit_ctx *ctx) +{ + emit_instr(ctx, lb, reg, offset, base); +} + +static inline void emit_half_load(unsigned int reg, unsigned int base, + unsigned int offset, struct jit_ctx *ctx) +{ + emit_instr(ctx, lh, reg, offset, base); +} + +static inline void emit_half_load_unsigned(unsigned int reg, unsigned int base, + unsigned int offset, struct jit_ctx *ctx) +{ + emit_instr(ctx, lhu, reg, offset, base); +} + +static inline void emit_mul(unsigned int dst, unsigned int src1, + unsigned int src2, struct jit_ctx *ctx) +{ + emit_instr(ctx, mul, dst, src1, src2); +} + +static inline void emit_div(unsigned int dst, unsigned int src, + struct jit_ctx *ctx) +{ + if (ctx->target != NULL) { + u32 *p = &ctx->target[ctx->idx]; + uasm_i_divu(&p, dst, src); + p = &ctx->target[ctx->idx + 1]; + uasm_i_mflo(&p, dst); + } + ctx->idx += 2; /* 2 insts */ +} + +static inline void emit_mod(unsigned int dst, unsigned int src, + struct jit_ctx *ctx) +{ + if (ctx->target != NULL) { + u32 *p = &ctx->target[ctx->idx]; + uasm_i_divu(&p, dst, src); + p = &ctx->target[ctx->idx + 1]; + uasm_i_mfhi(&p, dst); + } + ctx->idx += 2; /* 2 insts */ +} + +static inline void emit_dsll(unsigned int dst, unsigned int src, + unsigned int sa, struct jit_ctx *ctx) +{ + emit_instr(ctx, dsll, dst, src, sa); +} + +static inline void emit_dsrl32(unsigned int dst, unsigned int src, + unsigned int sa, struct jit_ctx *ctx) +{ + emit_instr(ctx, dsrl32, dst, src, sa); +} + +static inline void emit_wsbh(unsigned int dst, unsigned int src, + struct jit_ctx *ctx) +{ + emit_instr(ctx, wsbh, dst, src); +} + +/* load pointer to register */ +static inline void emit_load_ptr(unsigned int dst, unsigned int src, + int imm, struct jit_ctx *ctx) +{ + /* src contains the base addr of the 32/64-pointer */ + emit_long_instr(ctx, LW, dst, imm, src); +} + +/* load a function pointer to register */ +static inline void emit_load_func(unsigned int reg, ptr imm, + struct jit_ctx *ctx) +{ + if (IS_ENABLED(CONFIG_64BIT)) { + /* At this point imm is always 64-bit */ + emit_load_imm(r_tmp, (u64)imm >> 32, ctx); + emit_dsll(r_tmp_imm, r_tmp, 16, ctx); /* left shift by 16 */ + emit_ori(r_tmp, r_tmp_imm, (imm >> 16) & 0xffff, ctx); + emit_dsll(r_tmp_imm, r_tmp, 16, ctx); /* left shift by 16 */ + emit_ori(reg, r_tmp_imm, imm & 0xffff, ctx); + } else { + emit_load_imm(reg, imm, ctx); + } +} + +/* Move to real MIPS register */ +static inline void emit_reg_move(ptr dst, ptr src, struct jit_ctx *ctx) +{ + emit_long_instr(ctx, ADDU, dst, src, r_zero); +} + +/* Move to JIT (32-bit) register */ +static inline void emit_jit_reg_move(ptr dst, ptr src, struct jit_ctx *ctx) +{ + emit_addu(dst, src, r_zero, ctx); +} + +/* Compute the immediate value for PC-relative branches. */ +static inline u32 b_imm(unsigned int tgt, struct jit_ctx *ctx) +{ + if (ctx->target == NULL) + return 0; + + /* + * We want a pc-relative branch. We only do forward branches + * so tgt is always after pc. tgt is the instruction offset + * we want to jump to. + + * Branch on MIPS: + * I: target_offset <- sign_extend(offset) + * I+1: PC += target_offset (delay slot) + * + * ctx->idx currently points to the branch instruction + * but the offset is added to the delay slot so we need + * to subtract 4. + */ + return ctx->offsets[tgt] - + (ctx->idx * 4 - ctx->prologue_bytes) - 4; +} + +static inline void emit_bcond(int cond, unsigned int reg1, unsigned int reg2, + unsigned int imm, struct jit_ctx *ctx) +{ + if (ctx->target != NULL) { + u32 *p = &ctx->target[ctx->idx]; + + switch (cond) { + case MIPS_COND_EQ: + uasm_i_beq(&p, reg1, reg2, imm); + break; + case MIPS_COND_NE: + uasm_i_bne(&p, reg1, reg2, imm); + break; + case MIPS_COND_ALL: + uasm_i_b(&p, imm); + break; + default: + pr_warn("%s: Unhandled branch conditional: %d\n", + __func__, cond); + } + } + ctx->idx++; +} + +static inline void emit_b(unsigned int imm, struct jit_ctx *ctx) +{ + emit_bcond(MIPS_COND_ALL, r_zero, r_zero, imm, ctx); +} + +static inline void emit_jalr(unsigned int link, unsigned int reg, + struct jit_ctx *ctx) +{ + emit_instr(ctx, jalr, link, reg); +} + +static inline void emit_jr(unsigned int reg, struct jit_ctx *ctx) +{ + emit_instr(ctx, jr, reg); +} + +static inline u16 align_sp(unsigned int num) +{ + /* Double word alignment for 32-bit, quadword for 64-bit */ + unsigned int align = IS_ENABLED(CONFIG_64BIT) ? 16 : 8; + num = (num + (align - 1)) & -align; + return num; +} + +static void save_bpf_jit_regs(struct jit_ctx *ctx, unsigned offset) +{ + int i = 0, real_off = 0; + u32 sflags, tmp_flags; + + /* Adjust the stack pointer */ + if (offset) + emit_stack_offset(-align_sp(offset), ctx); + + tmp_flags = sflags = ctx->flags >> SEEN_SREG_SFT; + /* sflags is essentially a bitmap */ + while (tmp_flags) { + if ((sflags >> i) & 0x1) { + emit_store_stack_reg(MIPS_R_S0 + i, r_sp, real_off, + ctx); + real_off += SZREG; + } + i++; + tmp_flags >>= 1; + } + + /* save return address */ + if (ctx->flags & SEEN_CALL) { + emit_store_stack_reg(r_ra, r_sp, real_off, ctx); + real_off += SZREG; + } + + /* Setup r_M leaving the alignment gap if necessary */ + if (ctx->flags & SEEN_MEM) { + if (real_off % (SZREG * 2)) + real_off += SZREG; + emit_long_instr(ctx, ADDIU, r_M, r_sp, real_off); + } +} + +static void restore_bpf_jit_regs(struct jit_ctx *ctx, + unsigned int offset) +{ + int i, real_off = 0; + u32 sflags, tmp_flags; + + tmp_flags = sflags = ctx->flags >> SEEN_SREG_SFT; + /* sflags is a bitmap */ + i = 0; + while (tmp_flags) { + if ((sflags >> i) & 0x1) { + emit_load_stack_reg(MIPS_R_S0 + i, r_sp, real_off, + ctx); + real_off += SZREG; + } + i++; + tmp_flags >>= 1; + } + + /* restore return address */ + if (ctx->flags & SEEN_CALL) + emit_load_stack_reg(r_ra, r_sp, real_off, ctx); + + /* Restore the sp and discard the scrach memory */ + if (offset) + emit_stack_offset(align_sp(offset), ctx); +} + +static unsigned int get_stack_depth(struct jit_ctx *ctx) +{ + int sp_off = 0; + + + /* How may s* regs do we need to preserved? */ + sp_off += hweight32(ctx->flags >> SEEN_SREG_SFT) * SZREG; + + if (ctx->flags & SEEN_MEM) + sp_off += 4 * BPF_MEMWORDS; /* BPF_MEMWORDS are 32-bit */ + + if (ctx->flags & SEEN_CALL) + sp_off += SZREG; /* Space for our ra register */ + + return sp_off; +} + +static void build_prologue(struct jit_ctx *ctx) +{ + int sp_off; + + /* Calculate the total offset for the stack pointer */ + sp_off = get_stack_depth(ctx); + save_bpf_jit_regs(ctx, sp_off); + + if (ctx->flags & SEEN_SKB) + emit_reg_move(r_skb, MIPS_R_A0, ctx); + + if (ctx->flags & SEEN_SKB_DATA) { + /* Load packet length */ + emit_load(r_skb_len, r_skb, offsetof(struct sk_buff, len), + ctx); + emit_load(r_tmp, r_skb, offsetof(struct sk_buff, data_len), + ctx); + /* Load the data pointer */ + emit_load_ptr(r_skb_data, r_skb, + offsetof(struct sk_buff, data), ctx); + /* Load the header length */ + emit_subu(r_skb_hl, r_skb_len, r_tmp, ctx); + } + + if (ctx->flags & SEEN_X) + emit_jit_reg_move(r_X, r_zero, ctx); + + /* + * Do not leak kernel data to userspace, we only need to clear + * r_A if it is ever used. In fact if it is never used, we + * will not save/restore it, so clearing it in this case would + * corrupt the state of the caller. + */ + if (bpf_needs_clear_a(&ctx->skf->insns[0]) && + (ctx->flags & SEEN_A)) + emit_jit_reg_move(r_A, r_zero, ctx); +} + +static void build_epilogue(struct jit_ctx *ctx) +{ + unsigned int sp_off; + + /* Calculate the total offset for the stack pointer */ + + sp_off = get_stack_depth(ctx); + restore_bpf_jit_regs(ctx, sp_off); + + /* Return */ + emit_jr(r_ra, ctx); + emit_nop(ctx); +} + +#define CHOOSE_LOAD_FUNC(K, func) \ + ((int)K < 0 ? ((int)K >= SKF_LL_OFF ? func##_negative : func) : \ + func##_positive) + +static int build_body(struct jit_ctx *ctx) +{ + const struct bpf_prog *prog = ctx->skf; + const struct sock_filter *inst; + unsigned int i, off, condt; + u32 k, b_off __maybe_unused; + u8 (*sk_load_func)(unsigned long *skb, int offset); + + for (i = 0; i < prog->len; i++) { + u16 code; + + inst = &(prog->insns[i]); + pr_debug("%s: code->0x%02x, jt->0x%x, jf->0x%x, k->0x%x\n", + __func__, inst->code, inst->jt, inst->jf, inst->k); + k = inst->k; + code = bpf_anc_helper(inst); + + if (ctx->target == NULL) + ctx->offsets[i] = ctx->idx * 4; + + switch (code) { + case BPF_LD | BPF_IMM: + /* A <- k ==> li r_A, k */ + ctx->flags |= SEEN_A; + emit_load_imm(r_A, k, ctx); + break; + case BPF_LD | BPF_W | BPF_LEN: + BUILD_BUG_ON(sizeof_field(struct sk_buff, len) != 4); + /* A <- len ==> lw r_A, offset(skb) */ + ctx->flags |= SEEN_SKB | SEEN_A; + off = offsetof(struct sk_buff, len); + emit_load(r_A, r_skb, off, ctx); + break; + case BPF_LD | BPF_MEM: + /* A <- M[k] ==> lw r_A, offset(M) */ + ctx->flags |= SEEN_MEM | SEEN_A; + emit_load(r_A, r_M, SCRATCH_OFF(k), ctx); + break; + case BPF_LD | BPF_W | BPF_ABS: + /* A <- P[k:4] */ + sk_load_func = CHOOSE_LOAD_FUNC(k, sk_load_word); + goto load; + case BPF_LD | BPF_H | BPF_ABS: + /* A <- P[k:2] */ + sk_load_func = CHOOSE_LOAD_FUNC(k, sk_load_half); + goto load; + case BPF_LD | BPF_B | BPF_ABS: + /* A <- P[k:1] */ + sk_load_func = CHOOSE_LOAD_FUNC(k, sk_load_byte); +load: + emit_load_imm(r_off, k, ctx); +load_common: + ctx->flags |= SEEN_CALL | SEEN_OFF | + SEEN_SKB | SEEN_A | SEEN_SKB_DATA; + + emit_load_func(r_s0, (ptr)sk_load_func, ctx); + emit_reg_move(MIPS_R_A0, r_skb, ctx); + emit_jalr(MIPS_R_RA, r_s0, ctx); + /* Load second argument to delay slot */ + emit_reg_move(MIPS_R_A1, r_off, ctx); + /* Check the error value */ + emit_bcond(MIPS_COND_EQ, r_ret, 0, b_imm(i + 1, ctx), + ctx); + /* Load return register on DS for failures */ + emit_reg_move(r_ret, r_zero, ctx); + /* Return with error */ + emit_b(b_imm(prog->len, ctx), ctx); + emit_nop(ctx); + break; + case BPF_LD | BPF_W | BPF_IND: + /* A <- P[X + k:4] */ + sk_load_func = sk_load_word; + goto load_ind; + case BPF_LD | BPF_H | BPF_IND: + /* A <- P[X + k:2] */ + sk_load_func = sk_load_half; + goto load_ind; + case BPF_LD | BPF_B | BPF_IND: + /* A <- P[X + k:1] */ + sk_load_func = sk_load_byte; +load_ind: + ctx->flags |= SEEN_OFF | SEEN_X; + emit_addiu(r_off, r_X, k, ctx); + goto load_common; + case BPF_LDX | BPF_IMM: + /* X <- k */ + ctx->flags |= SEEN_X; + emit_load_imm(r_X, k, ctx); + break; + case BPF_LDX | BPF_MEM: + /* X <- M[k] */ + ctx->flags |= SEEN_X | SEEN_MEM; + emit_load(r_X, r_M, SCRATCH_OFF(k), ctx); + break; + case BPF_LDX | BPF_W | BPF_LEN: + /* X <- len */ + ctx->flags |= SEEN_X | SEEN_SKB; + off = offsetof(struct sk_buff, len); + emit_load(r_X, r_skb, off, ctx); + break; + case BPF_LDX | BPF_B | BPF_MSH: + /* X <- 4 * (P[k:1] & 0xf) */ + ctx->flags |= SEEN_X | SEEN_CALL | SEEN_SKB; + /* Load offset to a1 */ + emit_load_func(r_s0, (ptr)sk_load_byte, ctx); + /* + * This may emit two instructions so it may not fit + * in the delay slot. So use a0 in the delay slot. + */ + emit_load_imm(MIPS_R_A1, k, ctx); + emit_jalr(MIPS_R_RA, r_s0, ctx); + emit_reg_move(MIPS_R_A0, r_skb, ctx); /* delay slot */ + /* Check the error value */ + emit_bcond(MIPS_COND_NE, r_ret, 0, + b_imm(prog->len, ctx), ctx); + emit_reg_move(r_ret, r_zero, ctx); + /* We are good */ + /* X <- P[1:K] & 0xf */ + emit_andi(r_X, r_A, 0xf, ctx); + /* X << 2 */ + emit_b(b_imm(i + 1, ctx), ctx); + emit_sll(r_X, r_X, 2, ctx); /* delay slot */ + break; + case BPF_ST: + /* M[k] <- A */ + ctx->flags |= SEEN_MEM | SEEN_A; + emit_store(r_A, r_M, SCRATCH_OFF(k), ctx); + break; + case BPF_STX: + /* M[k] <- X */ + ctx->flags |= SEEN_MEM | SEEN_X; + emit_store(r_X, r_M, SCRATCH_OFF(k), ctx); + break; + case BPF_ALU | BPF_ADD | BPF_K: + /* A += K */ + ctx->flags |= SEEN_A; + emit_addiu(r_A, r_A, k, ctx); + break; + case BPF_ALU | BPF_ADD | BPF_X: + /* A += X */ + ctx->flags |= SEEN_A | SEEN_X; + emit_addu(r_A, r_A, r_X, ctx); + break; + case BPF_ALU | BPF_SUB | BPF_K: + /* A -= K */ + ctx->flags |= SEEN_A; + emit_addiu(r_A, r_A, -k, ctx); + break; + case BPF_ALU | BPF_SUB | BPF_X: + /* A -= X */ + ctx->flags |= SEEN_A | SEEN_X; + emit_subu(r_A, r_A, r_X, ctx); + break; + case BPF_ALU | BPF_MUL | BPF_K: + /* A *= K */ + /* Load K to scratch register before MUL */ + ctx->flags |= SEEN_A; + emit_load_imm(r_s0, k, ctx); + emit_mul(r_A, r_A, r_s0, ctx); + break; + case BPF_ALU | BPF_MUL | BPF_X: + /* A *= X */ + ctx->flags |= SEEN_A | SEEN_X; + emit_mul(r_A, r_A, r_X, ctx); + break; + case BPF_ALU | BPF_DIV | BPF_K: + /* A /= k */ + if (k == 1) + break; + if (optimize_div(&k)) { + ctx->flags |= SEEN_A; + emit_srl(r_A, r_A, k, ctx); + break; + } + ctx->flags |= SEEN_A; + emit_load_imm(r_s0, k, ctx); + emit_div(r_A, r_s0, ctx); + break; + case BPF_ALU | BPF_MOD | BPF_K: + /* A %= k */ + if (k == 1) { + ctx->flags |= SEEN_A; + emit_jit_reg_move(r_A, r_zero, ctx); + } else { + ctx->flags |= SEEN_A; + emit_load_imm(r_s0, k, ctx); + emit_mod(r_A, r_s0, ctx); + } + break; + case BPF_ALU | BPF_DIV | BPF_X: + /* A /= X */ + ctx->flags |= SEEN_X | SEEN_A; + /* Check if r_X is zero */ + emit_bcond(MIPS_COND_EQ, r_X, r_zero, + b_imm(prog->len, ctx), ctx); + emit_load_imm(r_ret, 0, ctx); /* delay slot */ + emit_div(r_A, r_X, ctx); + break; + case BPF_ALU | BPF_MOD | BPF_X: + /* A %= X */ + ctx->flags |= SEEN_X | SEEN_A; + /* Check if r_X is zero */ + emit_bcond(MIPS_COND_EQ, r_X, r_zero, + b_imm(prog->len, ctx), ctx); + emit_load_imm(r_ret, 0, ctx); /* delay slot */ + emit_mod(r_A, r_X, ctx); + break; + case BPF_ALU | BPF_OR | BPF_K: + /* A |= K */ + ctx->flags |= SEEN_A; + emit_ori(r_A, r_A, k, ctx); + break; + case BPF_ALU | BPF_OR | BPF_X: + /* A |= X */ + ctx->flags |= SEEN_A; + emit_ori(r_A, r_A, r_X, ctx); + break; + case BPF_ALU | BPF_XOR | BPF_K: + /* A ^= k */ + ctx->flags |= SEEN_A; + emit_xori(r_A, r_A, k, ctx); + break; + case BPF_ANC | SKF_AD_ALU_XOR_X: + case BPF_ALU | BPF_XOR | BPF_X: + /* A ^= X */ + ctx->flags |= SEEN_A; + emit_xor(r_A, r_A, r_X, ctx); + break; + case BPF_ALU | BPF_AND | BPF_K: + /* A &= K */ + ctx->flags |= SEEN_A; + emit_andi(r_A, r_A, k, ctx); + break; + case BPF_ALU | BPF_AND | BPF_X: + /* A &= X */ + ctx->flags |= SEEN_A | SEEN_X; + emit_and(r_A, r_A, r_X, ctx); + break; + case BPF_ALU | BPF_LSH | BPF_K: + /* A <<= K */ + ctx->flags |= SEEN_A; + emit_sll(r_A, r_A, k, ctx); + break; + case BPF_ALU | BPF_LSH | BPF_X: + /* A <<= X */ + ctx->flags |= SEEN_A | SEEN_X; + emit_sllv(r_A, r_A, r_X, ctx); + break; + case BPF_ALU | BPF_RSH | BPF_K: + /* A >>= K */ + ctx->flags |= SEEN_A; + emit_srl(r_A, r_A, k, ctx); + break; + case BPF_ALU | BPF_RSH | BPF_X: + ctx->flags |= SEEN_A | SEEN_X; + emit_srlv(r_A, r_A, r_X, ctx); + break; + case BPF_ALU | BPF_NEG: + /* A = -A */ + ctx->flags |= SEEN_A; + emit_neg(r_A, ctx); + break; + case BPF_JMP | BPF_JA: + /* pc += K */ + emit_b(b_imm(i + k + 1, ctx), ctx); + emit_nop(ctx); + break; + case BPF_JMP | BPF_JEQ | BPF_K: + /* pc += ( A == K ) ? pc->jt : pc->jf */ + condt = MIPS_COND_EQ | MIPS_COND_K; + goto jmp_cmp; + case BPF_JMP | BPF_JEQ | BPF_X: + ctx->flags |= SEEN_X; + /* pc += ( A == X ) ? pc->jt : pc->jf */ + condt = MIPS_COND_EQ | MIPS_COND_X; + goto jmp_cmp; + case BPF_JMP | BPF_JGE | BPF_K: + /* pc += ( A >= K ) ? pc->jt : pc->jf */ + condt = MIPS_COND_GE | MIPS_COND_K; + goto jmp_cmp; + case BPF_JMP | BPF_JGE | BPF_X: + ctx->flags |= SEEN_X; + /* pc += ( A >= X ) ? pc->jt : pc->jf */ + condt = MIPS_COND_GE | MIPS_COND_X; + goto jmp_cmp; + case BPF_JMP | BPF_JGT | BPF_K: + /* pc += ( A > K ) ? pc->jt : pc->jf */ + condt = MIPS_COND_GT | MIPS_COND_K; + goto jmp_cmp; + case BPF_JMP | BPF_JGT | BPF_X: + ctx->flags |= SEEN_X; + /* pc += ( A > X ) ? pc->jt : pc->jf */ + condt = MIPS_COND_GT | MIPS_COND_X; +jmp_cmp: + /* Greater or Equal */ + if ((condt & MIPS_COND_GE) || + (condt & MIPS_COND_GT)) { + if (condt & MIPS_COND_K) { /* K */ + ctx->flags |= SEEN_A; + emit_sltiu(r_s0, r_A, k, ctx); + } else { /* X */ + ctx->flags |= SEEN_A | + SEEN_X; + emit_sltu(r_s0, r_A, r_X, ctx); + } + /* A < (K|X) ? r_scrach = 1 */ + b_off = b_imm(i + inst->jf + 1, ctx); + emit_bcond(MIPS_COND_NE, r_s0, r_zero, b_off, + ctx); + emit_nop(ctx); + /* A > (K|X) ? scratch = 0 */ + if (condt & MIPS_COND_GT) { + /* Checking for equality */ + ctx->flags |= SEEN_A | SEEN_X; + if (condt & MIPS_COND_K) + emit_load_imm(r_s0, k, ctx); + else + emit_jit_reg_move(r_s0, r_X, + ctx); + b_off = b_imm(i + inst->jf + 1, ctx); + emit_bcond(MIPS_COND_EQ, r_A, r_s0, + b_off, ctx); + emit_nop(ctx); + /* Finally, A > K|X */ + b_off = b_imm(i + inst->jt + 1, ctx); + emit_b(b_off, ctx); + emit_nop(ctx); + } else { + /* A >= (K|X) so jump */ + b_off = b_imm(i + inst->jt + 1, ctx); + emit_b(b_off, ctx); + emit_nop(ctx); + } + } else { + /* A == K|X */ + if (condt & MIPS_COND_K) { /* K */ + ctx->flags |= SEEN_A; + emit_load_imm(r_s0, k, ctx); + /* jump true */ + b_off = b_imm(i + inst->jt + 1, ctx); + emit_bcond(MIPS_COND_EQ, r_A, r_s0, + b_off, ctx); + emit_nop(ctx); + /* jump false */ + b_off = b_imm(i + inst->jf + 1, + ctx); + emit_bcond(MIPS_COND_NE, r_A, r_s0, + b_off, ctx); + emit_nop(ctx); + } else { /* X */ + /* jump true */ + ctx->flags |= SEEN_A | SEEN_X; + b_off = b_imm(i + inst->jt + 1, + ctx); + emit_bcond(MIPS_COND_EQ, r_A, r_X, + b_off, ctx); + emit_nop(ctx); + /* jump false */ + b_off = b_imm(i + inst->jf + 1, ctx); + emit_bcond(MIPS_COND_NE, r_A, r_X, + b_off, ctx); + emit_nop(ctx); + } + } + break; + case BPF_JMP | BPF_JSET | BPF_K: + ctx->flags |= SEEN_A; + /* pc += (A & K) ? pc -> jt : pc -> jf */ + emit_load_imm(r_s1, k, ctx); + emit_and(r_s0, r_A, r_s1, ctx); + /* jump true */ + b_off = b_imm(i + inst->jt + 1, ctx); + emit_bcond(MIPS_COND_NE, r_s0, r_zero, b_off, ctx); + emit_nop(ctx); + /* jump false */ + b_off = b_imm(i + inst->jf + 1, ctx); + emit_b(b_off, ctx); + emit_nop(ctx); + break; + case BPF_JMP | BPF_JSET | BPF_X: + ctx->flags |= SEEN_X | SEEN_A; + /* pc += (A & X) ? pc -> jt : pc -> jf */ + emit_and(r_s0, r_A, r_X, ctx); + /* jump true */ + b_off = b_imm(i + inst->jt + 1, ctx); + emit_bcond(MIPS_COND_NE, r_s0, r_zero, b_off, ctx); + emit_nop(ctx); + /* jump false */ + b_off = b_imm(i + inst->jf + 1, ctx); + emit_b(b_off, ctx); + emit_nop(ctx); + break; + case BPF_RET | BPF_A: + ctx->flags |= SEEN_A; + if (i != prog->len - 1) + /* + * If this is not the last instruction + * then jump to the epilogue + */ + emit_b(b_imm(prog->len, ctx), ctx); + emit_reg_move(r_ret, r_A, ctx); /* delay slot */ + break; + case BPF_RET | BPF_K: + /* + * It can emit two instructions so it does not fit on + * the delay slot. + */ + emit_load_imm(r_ret, k, ctx); + if (i != prog->len - 1) { + /* + * If this is not the last instruction + * then jump to the epilogue + */ + emit_b(b_imm(prog->len, ctx), ctx); + emit_nop(ctx); + } + break; + case BPF_MISC | BPF_TAX: + /* X = A */ + ctx->flags |= SEEN_X | SEEN_A; + emit_jit_reg_move(r_X, r_A, ctx); + break; + case BPF_MISC | BPF_TXA: + /* A = X */ + ctx->flags |= SEEN_A | SEEN_X; + emit_jit_reg_move(r_A, r_X, ctx); + break; + /* AUX */ + case BPF_ANC | SKF_AD_PROTOCOL: + /* A = ntohs(skb->protocol */ + ctx->flags |= SEEN_SKB | SEEN_OFF | SEEN_A; + BUILD_BUG_ON(sizeof_field(struct sk_buff, + protocol) != 2); + off = offsetof(struct sk_buff, protocol); + emit_half_load(r_A, r_skb, off, ctx); +#ifdef CONFIG_CPU_LITTLE_ENDIAN + /* This needs little endian fixup */ + if (cpu_has_wsbh) { + /* R2 and later have the wsbh instruction */ + emit_wsbh(r_A, r_A, ctx); + } else { + /* Get first byte */ + emit_andi(r_tmp_imm, r_A, 0xff, ctx); + /* Shift it */ + emit_sll(r_tmp, r_tmp_imm, 8, ctx); + /* Get second byte */ + emit_srl(r_tmp_imm, r_A, 8, ctx); + emit_andi(r_tmp_imm, r_tmp_imm, 0xff, ctx); + /* Put everyting together in r_A */ + emit_or(r_A, r_tmp, r_tmp_imm, ctx); + } +#endif + break; + case BPF_ANC | SKF_AD_CPU: + ctx->flags |= SEEN_A | SEEN_OFF; + /* A = current_thread_info()->cpu */ + BUILD_BUG_ON(sizeof_field(struct thread_info, + cpu) != 4); + off = offsetof(struct thread_info, cpu); + /* $28/gp points to the thread_info struct */ + emit_load(r_A, 28, off, ctx); + break; + case BPF_ANC | SKF_AD_IFINDEX: + /* A = skb->dev->ifindex */ + case BPF_ANC | SKF_AD_HATYPE: + /* A = skb->dev->type */ + ctx->flags |= SEEN_SKB | SEEN_A; + off = offsetof(struct sk_buff, dev); + /* Load *dev pointer */ + emit_load_ptr(r_s0, r_skb, off, ctx); + /* error (0) in the delay slot */ + emit_bcond(MIPS_COND_EQ, r_s0, r_zero, + b_imm(prog->len, ctx), ctx); + emit_reg_move(r_ret, r_zero, ctx); + if (code == (BPF_ANC | SKF_AD_IFINDEX)) { + BUILD_BUG_ON(sizeof_field(struct net_device, ifindex) != 4); + off = offsetof(struct net_device, ifindex); + emit_load(r_A, r_s0, off, ctx); + } else { /* (code == (BPF_ANC | SKF_AD_HATYPE) */ + BUILD_BUG_ON(sizeof_field(struct net_device, type) != 2); + off = offsetof(struct net_device, type); + emit_half_load_unsigned(r_A, r_s0, off, ctx); + } + break; + case BPF_ANC | SKF_AD_MARK: + ctx->flags |= SEEN_SKB | SEEN_A; + BUILD_BUG_ON(sizeof_field(struct sk_buff, mark) != 4); + off = offsetof(struct sk_buff, mark); + emit_load(r_A, r_skb, off, ctx); + break; + case BPF_ANC | SKF_AD_RXHASH: + ctx->flags |= SEEN_SKB | SEEN_A; + BUILD_BUG_ON(sizeof_field(struct sk_buff, hash) != 4); + off = offsetof(struct sk_buff, hash); + emit_load(r_A, r_skb, off, ctx); + break; + case BPF_ANC | SKF_AD_VLAN_TAG: + ctx->flags |= SEEN_SKB | SEEN_A; + BUILD_BUG_ON(sizeof_field(struct sk_buff, + vlan_tci) != 2); + off = offsetof(struct sk_buff, vlan_tci); + emit_half_load_unsigned(r_A, r_skb, off, ctx); + break; + case BPF_ANC | SKF_AD_VLAN_TAG_PRESENT: + ctx->flags |= SEEN_SKB | SEEN_A; + emit_load_byte(r_A, r_skb, PKT_VLAN_PRESENT_OFFSET(), ctx); + if (PKT_VLAN_PRESENT_BIT) + emit_srl(r_A, r_A, PKT_VLAN_PRESENT_BIT, ctx); + if (PKT_VLAN_PRESENT_BIT < 7) + emit_andi(r_A, r_A, 1, ctx); + break; + case BPF_ANC | SKF_AD_PKTTYPE: + ctx->flags |= SEEN_SKB; + + emit_load_byte(r_tmp, r_skb, PKT_TYPE_OFFSET(), ctx); + /* Keep only the last 3 bits */ + emit_andi(r_A, r_tmp, PKT_TYPE_MAX, ctx); +#ifdef __BIG_ENDIAN_BITFIELD + /* Get the actual packet type to the lower 3 bits */ + emit_srl(r_A, r_A, 5, ctx); +#endif + break; + case BPF_ANC | SKF_AD_QUEUE: + ctx->flags |= SEEN_SKB | SEEN_A; + BUILD_BUG_ON(sizeof_field(struct sk_buff, + queue_mapping) != 2); + BUILD_BUG_ON(offsetof(struct sk_buff, + queue_mapping) > 0xff); + off = offsetof(struct sk_buff, queue_mapping); + emit_half_load_unsigned(r_A, r_skb, off, ctx); + break; + default: + pr_debug("%s: Unhandled opcode: 0x%02x\n", __FILE__, + inst->code); + return -1; + } + } + + /* compute offsets only during the first pass */ + if (ctx->target == NULL) + ctx->offsets[i] = ctx->idx * 4; + + return 0; +} + +void bpf_jit_compile(struct bpf_prog *fp) +{ + struct jit_ctx ctx; + unsigned int alloc_size, tmp_idx; + + if (!bpf_jit_enable) + return; + + memset(&ctx, 0, sizeof(ctx)); + + ctx.offsets = kcalloc(fp->len + 1, sizeof(*ctx.offsets), GFP_KERNEL); + if (ctx.offsets == NULL) + return; + + ctx.skf = fp; + + if (build_body(&ctx)) + goto out; + + tmp_idx = ctx.idx; + build_prologue(&ctx); + ctx.prologue_bytes = (ctx.idx - tmp_idx) * 4; + /* just to complete the ctx.idx count */ + build_epilogue(&ctx); + + alloc_size = 4 * ctx.idx; + ctx.target = module_alloc(alloc_size); + if (ctx.target == NULL) + goto out; + + /* Clean it */ + memset(ctx.target, 0, alloc_size); + + ctx.idx = 0; + + /* Generate the actual JIT code */ + build_prologue(&ctx); + build_body(&ctx); + build_epilogue(&ctx); + + /* Update the icache */ + flush_icache_range((ptr)ctx.target, (ptr)(ctx.target + ctx.idx)); + + if (bpf_jit_enable > 1) + /* Dump JIT code */ + bpf_jit_dump(fp->len, alloc_size, 2, ctx.target); + + fp->bpf_func = (void *)ctx.target; + fp->jited = 1; + +out: + kfree(ctx.offsets); +} + +void bpf_jit_free(struct bpf_prog *fp) +{ + if (fp->jited) + module_memfree(fp->bpf_func); + + bpf_prog_unlock_free(fp); +} diff --git a/arch/mips/net/bpf_jit_asm.S b/arch/mips/net/bpf_jit_asm.S new file mode 100644 index 000000000000..57154c5883b6 --- /dev/null +++ b/arch/mips/net/bpf_jit_asm.S @@ -0,0 +1,285 @@ +/* + * bpf_jib_asm.S: Packet/header access helper functions for MIPS/MIPS64 BPF + * compiler. + * + * Copyright (C) 2015 Imagination Technologies Ltd. + * Author: Markos Chandras <markos.chandras@imgtec.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + */ + +#include <asm/asm.h> +#include <asm/isa-rev.h> +#include <asm/regdef.h> +#include "bpf_jit.h" + +/* ABI + * + * r_skb_hl skb header length + * r_skb_data skb data + * r_off(a1) offset register + * r_A BPF register A + * r_X PF register X + * r_skb(a0) *skb + * r_M *scratch memory + * r_skb_le skb length + * r_s0 Scratch register 0 + * r_s1 Scratch register 1 + * + * On entry: + * a0: *skb + * a1: offset (imm or imm + X) + * + * All non-BPF-ABI registers are free for use. On return, we only + * care about r_ret. The BPF-ABI registers are assumed to remain + * unmodified during the entire filter operation. + */ + +#define skb a0 +#define offset a1 +#define SKF_LL_OFF (-0x200000) /* Can't include linux/filter.h in assembly */ + + /* We know better :) so prevent assembler reordering etc */ + .set noreorder + +#define is_offset_negative(TYPE) \ + /* If offset is negative we have more work to do */ \ + slti t0, offset, 0; \ + bgtz t0, bpf_slow_path_##TYPE##_neg; \ + /* Be careful what follows in DS. */ + +#define is_offset_in_header(SIZE, TYPE) \ + /* Reading from header? */ \ + addiu $r_s0, $r_skb_hl, -SIZE; \ + slt t0, $r_s0, offset; \ + bgtz t0, bpf_slow_path_##TYPE; \ + +LEAF(sk_load_word) + is_offset_negative(word) +FEXPORT(sk_load_word_positive) + is_offset_in_header(4, word) + /* Offset within header boundaries */ + PTR_ADDU t1, $r_skb_data, offset + .set reorder + lw $r_A, 0(t1) + .set noreorder +#ifdef CONFIG_CPU_LITTLE_ENDIAN +# if MIPS_ISA_REV >= 2 + wsbh t0, $r_A + rotr $r_A, t0, 16 +# else + sll t0, $r_A, 24 + srl t1, $r_A, 24 + srl t2, $r_A, 8 + or t0, t0, t1 + andi t2, t2, 0xff00 + andi t1, $r_A, 0xff00 + or t0, t0, t2 + sll t1, t1, 8 + or $r_A, t0, t1 +# endif +#endif + jr $r_ra + move $r_ret, zero + END(sk_load_word) + +LEAF(sk_load_half) + is_offset_negative(half) +FEXPORT(sk_load_half_positive) + is_offset_in_header(2, half) + /* Offset within header boundaries */ + PTR_ADDU t1, $r_skb_data, offset + lhu $r_A, 0(t1) +#ifdef CONFIG_CPU_LITTLE_ENDIAN +# if MIPS_ISA_REV >= 2 + wsbh $r_A, $r_A +# else + sll t0, $r_A, 8 + srl t1, $r_A, 8 + andi t0, t0, 0xff00 + or $r_A, t0, t1 +# endif +#endif + jr $r_ra + move $r_ret, zero + END(sk_load_half) + +LEAF(sk_load_byte) + is_offset_negative(byte) +FEXPORT(sk_load_byte_positive) + is_offset_in_header(1, byte) + /* Offset within header boundaries */ + PTR_ADDU t1, $r_skb_data, offset + lbu $r_A, 0(t1) + jr $r_ra + move $r_ret, zero + END(sk_load_byte) + +/* + * call skb_copy_bits: + * (prototype in linux/skbuff.h) + * + * int skb_copy_bits(sk_buff *skb, int offset, void *to, int len) + * + * o32 mandates we leave 4 spaces for argument registers in case + * the callee needs to use them. Even though we don't care about + * the argument registers ourselves, we need to allocate that space + * to remain ABI compliant since the callee may want to use that space. + * We also allocate 2 more spaces for $r_ra and our return register (*to). + * + * n64 is a bit different. The *caller* will allocate the space to preserve + * the arguments. So in 64-bit kernels, we allocate the 4-arg space for no + * good reason but it does not matter that much really. + * + * (void *to) is returned in r_s0 + * + */ +#ifdef CONFIG_CPU_LITTLE_ENDIAN +#define DS_OFFSET(SIZE) (4 * SZREG) +#else +#define DS_OFFSET(SIZE) ((4 * SZREG) + (4 - SIZE)) +#endif +#define bpf_slow_path_common(SIZE) \ + /* Quick check. Are we within reasonable boundaries? */ \ + LONG_ADDIU $r_s1, $r_skb_len, -SIZE; \ + sltu $r_s0, offset, $r_s1; \ + beqz $r_s0, fault; \ + /* Load 4th argument in DS */ \ + LONG_ADDIU a3, zero, SIZE; \ + PTR_ADDIU $r_sp, $r_sp, -(6 * SZREG); \ + PTR_LA t0, skb_copy_bits; \ + PTR_S $r_ra, (5 * SZREG)($r_sp); \ + /* Assign low slot to a2 */ \ + PTR_ADDIU a2, $r_sp, DS_OFFSET(SIZE); \ + jalr t0; \ + /* Reset our destination slot (DS but it's ok) */ \ + INT_S zero, (4 * SZREG)($r_sp); \ + /* \ + * skb_copy_bits returns 0 on success and -EFAULT \ + * on error. Our data live in a2. Do not bother with \ + * our data if an error has been returned. \ + */ \ + /* Restore our frame */ \ + PTR_L $r_ra, (5 * SZREG)($r_sp); \ + INT_L $r_s0, (4 * SZREG)($r_sp); \ + bltz v0, fault; \ + PTR_ADDIU $r_sp, $r_sp, 6 * SZREG; \ + move $r_ret, zero; \ + +NESTED(bpf_slow_path_word, (6 * SZREG), $r_sp) + bpf_slow_path_common(4) +#ifdef CONFIG_CPU_LITTLE_ENDIAN +# if MIPS_ISA_REV >= 2 + wsbh t0, $r_s0 + jr $r_ra + rotr $r_A, t0, 16 +# else + sll t0, $r_s0, 24 + srl t1, $r_s0, 24 + srl t2, $r_s0, 8 + or t0, t0, t1 + andi t2, t2, 0xff00 + andi t1, $r_s0, 0xff00 + or t0, t0, t2 + sll t1, t1, 8 + jr $r_ra + or $r_A, t0, t1 +# endif +#else + jr $r_ra + move $r_A, $r_s0 +#endif + + END(bpf_slow_path_word) + +NESTED(bpf_slow_path_half, (6 * SZREG), $r_sp) + bpf_slow_path_common(2) +#ifdef CONFIG_CPU_LITTLE_ENDIAN +# if MIPS_ISA_REV >= 2 + jr $r_ra + wsbh $r_A, $r_s0 +# else + sll t0, $r_s0, 8 + andi t1, $r_s0, 0xff00 + andi t0, t0, 0xff00 + srl t1, t1, 8 + jr $r_ra + or $r_A, t0, t1 +# endif +#else + jr $r_ra + move $r_A, $r_s0 +#endif + + END(bpf_slow_path_half) + +NESTED(bpf_slow_path_byte, (6 * SZREG), $r_sp) + bpf_slow_path_common(1) + jr $r_ra + move $r_A, $r_s0 + + END(bpf_slow_path_byte) + +/* + * Negative entry points + */ + .macro bpf_is_end_of_data + li t0, SKF_LL_OFF + /* Reading link layer data? */ + slt t1, offset, t0 + bgtz t1, fault + /* Be careful what follows in DS. */ + .endm +/* + * call skb_copy_bits: + * (prototype in linux/filter.h) + * + * void *bpf_internal_load_pointer_neg_helper(const struct sk_buff *skb, + * int k, unsigned int size) + * + * see above (bpf_slow_path_common) for ABI restrictions + */ +#define bpf_negative_common(SIZE) \ + PTR_ADDIU $r_sp, $r_sp, -(6 * SZREG); \ + PTR_LA t0, bpf_internal_load_pointer_neg_helper; \ + PTR_S $r_ra, (5 * SZREG)($r_sp); \ + jalr t0; \ + li a2, SIZE; \ + PTR_L $r_ra, (5 * SZREG)($r_sp); \ + /* Check return pointer */ \ + beqz v0, fault; \ + PTR_ADDIU $r_sp, $r_sp, 6 * SZREG; \ + /* Preserve our pointer */ \ + move $r_s0, v0; \ + /* Set return value */ \ + move $r_ret, zero; \ + +bpf_slow_path_word_neg: + bpf_is_end_of_data +NESTED(sk_load_word_negative, (6 * SZREG), $r_sp) + bpf_negative_common(4) + jr $r_ra + lw $r_A, 0($r_s0) + END(sk_load_word_negative) + +bpf_slow_path_half_neg: + bpf_is_end_of_data +NESTED(sk_load_half_negative, (6 * SZREG), $r_sp) + bpf_negative_common(2) + jr $r_ra + lhu $r_A, 0($r_s0) + END(sk_load_half_negative) + +bpf_slow_path_byte_neg: + bpf_is_end_of_data +NESTED(sk_load_byte_negative, (6 * SZREG), $r_sp) + bpf_negative_common(1) + jr $r_ra + lbu $r_A, 0($r_s0) + END(sk_load_byte_negative) + +fault: + jr $r_ra + addiu $r_ret, zero, 1 diff --git a/arch/mips/pci/pci-ip27.c b/arch/mips/pci/pci-ip27.c index 8e26b120f994..d85cbf84e41c 100644 --- a/arch/mips/pci/pci-ip27.c +++ b/arch/mips/pci/pci-ip27.c @@ -10,7 +10,7 @@ #include <asm/sn/addrs.h> #include <asm/sn/types.h> #include <asm/sn/klconfig.h> -#include <asm/sn/hub.h> +#include <asm/sn/agent.h> #include <asm/sn/ioc3.h> #include <asm/pci/bridge.h> diff --git a/arch/mips/pci/pci-xtalk-bridge.c b/arch/mips/pci/pci-xtalk-bridge.c index 5c1a196be0c5..3b2552fb7735 100644 --- a/arch/mips/pci/pci-xtalk-bridge.c +++ b/arch/mips/pci/pci-xtalk-bridge.c @@ -437,17 +437,28 @@ static int bridge_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) struct irq_alloc_info info; int irq; - irq = bc->pci_int[slot]; + switch (pin) { + case PCI_INTERRUPT_UNKNOWN: + case PCI_INTERRUPT_INTA: + case PCI_INTERRUPT_INTC: + pin = 0; + break; + case PCI_INTERRUPT_INTB: + case PCI_INTERRUPT_INTD: + pin = 1; + } + + irq = bc->pci_int[slot][pin]; if (irq == -1) { info.ctrl = bc; info.nasid = bc->nasid; - info.pin = slot; + info.pin = bc->int_mapping[slot][pin]; irq = irq_domain_alloc_irqs(bc->domain, 1, bc->nasid, &info); if (irq < 0) return irq; - bc->pci_int[slot] = irq; + bc->pci_int[slot][pin] = irq; } return irq; } @@ -458,21 +469,26 @@ static void bridge_setup_ip27_baseio6g(struct bridge_controller *bc) { bc->ioc3_sid[2] = IOC3_SID(IOC3_SUBSYS_IP27_BASEIO6G); bc->ioc3_sid[6] = IOC3_SID(IOC3_SUBSYS_IP27_MIO); + bc->int_mapping[2][1] = 4; + bc->int_mapping[6][1] = 6; } static void bridge_setup_ip27_baseio(struct bridge_controller *bc) { bc->ioc3_sid[2] = IOC3_SID(IOC3_SUBSYS_IP27_BASEIO); + bc->int_mapping[2][1] = 4; } static void bridge_setup_ip29_baseio(struct bridge_controller *bc) { bc->ioc3_sid[2] = IOC3_SID(IOC3_SUBSYS_IP29_SYSBOARD); + bc->int_mapping[2][1] = 3; } static void bridge_setup_ip30_sysboard(struct bridge_controller *bc) { bc->ioc3_sid[2] = IOC3_SID(IOC3_SUBSYS_IP30_SYSBOARD); + bc->int_mapping[2][1] = 4; } static void bridge_setup_menet(struct bridge_controller *bc) @@ -483,6 +499,26 @@ static void bridge_setup_menet(struct bridge_controller *bc) bc->ioc3_sid[3] = IOC3_SID(IOC3_SUBSYS_MENET4); } +static void bridge_setup_io7(struct bridge_controller *bc) +{ + bc->ioc3_sid[4] = IOC3_SID(IOC3_SUBSYS_IO7); +} + +static void bridge_setup_io8(struct bridge_controller *bc) +{ + bc->ioc3_sid[4] = IOC3_SID(IOC3_SUBSYS_IO8); +} + +static void bridge_setup_io9(struct bridge_controller *bc) +{ + bc->ioc3_sid[1] = IOC3_SID(IOC3_SUBSYS_IO9); +} + +static void bridge_setup_ip34_fuel_sysboard(struct bridge_controller *bc) +{ + bc->ioc3_sid[4] = IOC3_SID(IOC3_SUBSYS_IP34_SYSBOARD); +} + #define BRIDGE_BOARD_SETUP(_partno, _setup) \ { .match = _partno, .setup = _setup } @@ -500,6 +536,10 @@ static const struct { BRIDGE_BOARD_SETUP("030-0887-", bridge_setup_ip30_sysboard), BRIDGE_BOARD_SETUP("030-1467-", bridge_setup_ip30_sysboard), BRIDGE_BOARD_SETUP("030-0873-", bridge_setup_menet), + BRIDGE_BOARD_SETUP("030-1557-", bridge_setup_io7), + BRIDGE_BOARD_SETUP("030-1673-", bridge_setup_io8), + BRIDGE_BOARD_SETUP("030-1771-", bridge_setup_io9), + BRIDGE_BOARD_SETUP("030-1707-", bridge_setup_ip34_fuel_sysboard), }; static void bridge_setup_board(struct bridge_controller *bc, char *partnum) @@ -655,7 +695,11 @@ static int bridge_probe(struct platform_device *pdev) for (slot = 0; slot < 8; slot++) { bridge_set(bc, b_device[slot].reg, BRIDGE_DEV_SWAP_DIR); - bc->pci_int[slot] = -1; + bc->pci_int[slot][0] = -1; + bc->pci_int[slot][1] = -1; + /* default interrupt pin mapping */ + bc->int_mapping[slot][0] = slot; + bc->int_mapping[slot][1] = slot ^ 4; } bridge_read(bc, b_wid_tflush); /* wait until Bridge PIO complete */ diff --git a/arch/mips/ralink/ill_acc.c b/arch/mips/ralink/ill_acc.c index 0ddeb31afa93..bdf53807d7c2 100644 --- a/arch/mips/ralink/ill_acc.c +++ b/arch/mips/ralink/ill_acc.c @@ -67,11 +67,13 @@ static int __init ill_acc_of_setup(void) irq = irq_of_parse_and_map(np, 0); if (!irq) { dev_err(&pdev->dev, "failed to get irq\n"); + put_device(&pdev->dev); return -EINVAL; } if (request_irq(irq, ill_acc_irq_handler, 0, "ill_acc", &pdev->dev)) { dev_err(&pdev->dev, "failed to request irq\n"); + put_device(&pdev->dev); return -EINVAL; } diff --git a/arch/mips/sgi-ip22/ip22-gio.c b/arch/mips/sgi-ip22/ip22-gio.c index 282b47c2dc27..de0768a49ee8 100644 --- a/arch/mips/sgi-ip22/ip22-gio.c +++ b/arch/mips/sgi-ip22/ip22-gio.c @@ -47,8 +47,9 @@ static struct device gio_bus = { * Used by a driver to check whether an of_device present in the * system is in its list of supported devices. */ -const struct gio_device_id *gio_match_device(const struct gio_device_id *match, - const struct gio_device *dev) +static const struct gio_device_id * +gio_match_device(const struct gio_device_id *match, + const struct gio_device *dev) { const struct gio_device_id *ids; @@ -58,7 +59,6 @@ const struct gio_device_id *gio_match_device(const struct gio_device_id *match, return NULL; } -EXPORT_SYMBOL_GPL(gio_match_device); struct gio_device *gio_dev_get(struct gio_device *dev) { diff --git a/arch/mips/sgi-ip27/ip27-berr.c b/arch/mips/sgi-ip27/ip27-berr.c index 73ad29b180fb..5a38ae6bdfa9 100644 --- a/arch/mips/sgi-ip27/ip27-berr.c +++ b/arch/mips/sgi-ip27/ip27-berr.c @@ -16,8 +16,8 @@ #include <asm/ptrace.h> #include <asm/sn/addrs.h> +#include <asm/sn/agent.h> #include <asm/sn/arch.h> -#include <asm/sn/sn0/hub.h> #include <asm/tlbdebug.h> #include <asm/traps.h> #include <linux/uaccess.h> @@ -30,29 +30,31 @@ static void dump_hub_information(unsigned long errst0, unsigned long errst1) { "WERR", "Uncached Partial Write", "PWERR", "Write Timeout", NULL, NULL, NULL, NULL } }; - int wrb = errst1 & PI_ERR_ST1_WRBRRB_MASK; + union pi_err_stat0 st0; + union pi_err_stat1 st1; - if (!(errst0 & PI_ERR_ST0_VALID_MASK)) { - printk("Hub does not contain valid error information\n"); + st0.pi_stat0_word = errst0; + st1.pi_stat1_word = errst1; + + if (!st0.pi_stat0_fmt.s0_valid) { + pr_info("Hub does not contain valid error information\n"); return; } - - printk("Hub has valid error information:\n"); - if (errst0 & PI_ERR_ST0_OVERRUN_MASK) - printk("Overrun is set. Error stack may contain additional " + pr_info("Hub has valid error information:\n"); + if (st0.pi_stat0_fmt.s0_ovr_run) + pr_info("Overrun is set. Error stack may contain additional " "information.\n"); - printk("Hub error address is %08lx\n", - (errst0 & PI_ERR_ST0_ADDR_MASK) >> (PI_ERR_ST0_ADDR_SHFT - 3)); - printk("Incoming message command 0x%lx\n", - (errst0 & PI_ERR_ST0_CMD_MASK) >> PI_ERR_ST0_CMD_SHFT); - printk("Supplemental field of incoming message is 0x%lx\n", - (errst0 & PI_ERR_ST0_SUPPL_MASK) >> PI_ERR_ST0_SUPPL_SHFT); - printk("T5 Rn (for RRB only) is 0x%lx\n", - (errst0 & PI_ERR_ST0_REQNUM_MASK) >> PI_ERR_ST0_REQNUM_SHFT); - printk("Error type is %s\n", err_type[wrb] - [(errst0 & PI_ERR_ST0_TYPE_MASK) >> PI_ERR_ST0_TYPE_SHFT] - ? : "invalid"); + pr_info("Hub error address is %08lx\n", + (unsigned long)st0.pi_stat0_fmt.s0_addr); + pr_info("Incoming message command 0x%lx\n", + (unsigned long)st0.pi_stat0_fmt.s0_cmd); + pr_info("Supplemental field of incoming message is 0x%lx\n", + (unsigned long)st0.pi_stat0_fmt.s0_supl); + pr_info("T5 Rn (for RRB only) is 0x%lx\n", + (unsigned long)st0.pi_stat0_fmt.s0_t5_req); + pr_info("Error type is %s\n", err_type[st1.pi_stat1_fmt.s1_rw_rb] + [st0.pi_stat0_fmt.s0_err_type] ? : "invalid"); } int ip27_be_handler(struct pt_regs *regs, int is_fixup) diff --git a/arch/mips/sgi-ip27/ip27-common.h b/arch/mips/sgi-ip27/ip27-common.h index 3ffbcf9bfd41..ed008a08464c 100644 --- a/arch/mips/sgi-ip27/ip27-common.h +++ b/arch/mips/sgi-ip27/ip27-common.h @@ -3,8 +3,18 @@ #ifndef __IP27_COMMON_H #define __IP27_COMMON_H -extern void ip27_reboot_setup(void); +extern nasid_t master_nasid; + +extern void cpu_node_probe(void); extern void hub_rt_clock_event_init(void); +extern void hub_rtc_init(nasid_t nasid); +extern void install_cpu_nmi_handler(int slice); +extern void install_ipi(void); +extern void ip27_reboot_setup(void); extern const struct plat_smp_ops ip27_smp_ops; +extern unsigned long node_getfirstfree(nasid_t nasid); +extern void per_cpu_init(void); +extern void replicate_kernel_text(void); +extern void setup_replication_mask(void); #endif /* __IP27_COMMON_H */ diff --git a/arch/mips/sgi-ip27/ip27-console.c b/arch/mips/sgi-ip27/ip27-console.c index 5886bee89d06..7737a88c6569 100644 --- a/arch/mips/sgi-ip27/ip27-console.c +++ b/arch/mips/sgi-ip27/ip27-console.c @@ -9,14 +9,15 @@ #include <asm/page.h> #include <asm/setup.h> #include <asm/sn/addrs.h> -#include <asm/sn/sn0/hub.h> +#include <asm/sn/agent.h> #include <asm/sn/klconfig.h> #include <asm/sn/ioc3.h> -#include <asm/sn/sn_private.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include "ip27-common.h" + #define IOC3_CLK (22000000 / 3) #define IOC3_FLAGS (0) diff --git a/arch/mips/sgi-ip27/ip27-hubio.c b/arch/mips/sgi-ip27/ip27-hubio.c index a538d0ceb61d..8352eb6403b4 100644 --- a/arch/mips/sgi-ip27/ip27-hubio.c +++ b/arch/mips/sgi-ip27/ip27-hubio.c @@ -11,7 +11,9 @@ #include <linux/mmzone.h> #include <asm/sn/addrs.h> #include <asm/sn/arch.h> -#include <asm/sn/hub.h> +#include <asm/sn/agent.h> +#include <asm/sn/io.h> +#include <asm/xtalk/xtalk.h> static int force_fire_and_forget = 1; @@ -82,7 +84,7 @@ unsigned long hub_pio_map(nasid_t nasid, xwidgetnum_t widget, */ static void hub_setup_prb(nasid_t nasid, int prbnum, int credits) { - iprb_t prb; + union iprb_u prb; int prb_offset; /* @@ -135,7 +137,7 @@ static void hub_setup_prb(nasid_t nasid, int prbnum, int credits) static void hub_set_piomode(nasid_t nasid) { u64 ii_iowa; - hubii_wcr_t ii_wcr; + union hubii_wcr_u ii_wcr; unsigned i; ii_iowa = REMOTE_HUB_L(nasid, IIO_OUTWIDGET_ACCESS); diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c index f597e1ee2df7..32bcb8d1dd88 100644 --- a/arch/mips/sgi-ip27/ip27-init.c +++ b/arch/mips/sgi-ip27/ip27-init.c @@ -19,23 +19,18 @@ #include <asm/pgtable.h> #include <asm/sgialib.h> #include <asm/time.h> +#include <asm/sn/agent.h> #include <asm/sn/types.h> -#include <asm/sn/sn0/addrs.h> -#include <asm/sn/sn0/hubni.h> -#include <asm/sn/sn0/hubio.h> #include <asm/sn/klconfig.h> #include <asm/sn/ioc3.h> #include <asm/mipsregs.h> #include <asm/sn/gda.h> -#include <asm/sn/hub.h> #include <asm/sn/intr.h> #include <asm/current.h> #include <asm/processor.h> #include <asm/mmu_context.h> #include <asm/thread_info.h> #include <asm/sn/launch.h> -#include <asm/sn/sn_private.h> -#include <asm/sn/sn0/ip27.h> #include <asm/sn/mapped_kernel.h> #include "ip27-common.h" @@ -77,18 +72,14 @@ static void per_hub_init(nasid_t nasid) void per_cpu_init(void) { int cpu = smp_processor_id(); - int slice = LOCAL_HUB_L(PI_CPU_NUM); nasid_t nasid = get_nasid(); - struct hub_data *hub = hub_data(nasid); - - if (test_and_set_bit(slice, &hub->slice_map)) - return; clear_c0_status(ST0_IM); per_hub_init(nasid); - cpu_time_init(); + pr_info("CPU %d clock is %dMHz.\n", cpu, sn_cpu_info[cpu].p_speed); + install_ipi(); /* Install our NMI handler if symmon hasn't installed one. */ @@ -98,16 +89,6 @@ void per_cpu_init(void) enable_percpu_irq(IP27_HUB_PEND1_IRQ, IRQ_TYPE_NONE); } -/* - * get_nasid() returns the physical node id number of the caller. - */ -nasid_t -get_nasid(void) -{ - return (nasid_t)((LOCAL_HUB_L(NI_STATUS_REV_ID) & NSRI_NODEID_MASK) - >> NSRI_NODEID_SHFT); -} - void __init plat_mem_setup(void) { u64 p, e, n_mode; diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c index c72ae330ea93..42df9fafa943 100644 --- a/arch/mips/sgi-ip27/ip27-irq.c +++ b/arch/mips/sgi-ip27/ip27-irq.c @@ -19,7 +19,6 @@ #include <asm/sn/addrs.h> #include <asm/sn/agent.h> #include <asm/sn/arch.h> -#include <asm/sn/hub.h> #include <asm/sn/intr.h> #include <asm/sn/irq_alloc.h> @@ -288,11 +287,9 @@ void __init arch_init_irq(void) * Mark these as reserved right away so they won't be used accidentally * later. */ - for (i = 0; i <= BASE_PCI_IRQ; i++) + for (i = 0; i <= CPU_CALL_B_IRQ; i++) set_bit(i, hub_irq_map); - set_bit(IP_PEND0_6_63, hub_irq_map); - for (i = NI_BRDCAST_ERR_A; i <= MSC_PANIC_INTR; i++) set_bit(i, hub_irq_map); diff --git a/arch/mips/sgi-ip27/ip27-klconfig.c b/arch/mips/sgi-ip27/ip27-klconfig.c index 6cb2160e7689..81a1646e609a 100644 --- a/arch/mips/sgi-ip27/ip27-klconfig.c +++ b/arch/mips/sgi-ip27/ip27-klconfig.c @@ -72,54 +72,3 @@ lboard_t *find_lboard_class(lboard_t *start, unsigned char brd_type) /* Didn't find it. */ return (lboard_t *)NULL; } - -klcpu_t *nasid_slice_to_cpuinfo(nasid_t nasid, int slice) -{ - lboard_t *brd; - klcpu_t *acpu; - - if (!(brd = find_lboard((lboard_t *)KL_CONFIG_INFO(nasid), KLTYPE_IP27))) - return (klcpu_t *)NULL; - - if (!(acpu = (klcpu_t *)find_first_component(brd, KLSTRUCT_CPU))) - return (klcpu_t *)NULL; - - do { - if ((acpu->cpu_info.physid) == slice) - return acpu; - } while ((acpu = (klcpu_t *)find_component(brd, (klinfo_t *)acpu, - KLSTRUCT_CPU))); - return (klcpu_t *)NULL; -} - -klcpu_t *sn_get_cpuinfo(cpuid_t cpu) -{ - nasid_t nasid; - int slice; - klcpu_t *acpu; - - if (!(cpu < MAXCPUS)) { - printk("sn_get_cpuinfo: illegal cpuid 0x%lx\n", cpu); - return NULL; - } - - nasid = cputonasid(cpu); - if (nasid == INVALID_NASID) - return NULL; - - for (slice = 0; slice < CPUS_PER_NODE; slice++) { - acpu = nasid_slice_to_cpuinfo(nasid, slice); - if (acpu && acpu->cpu_info.virtid == cpu) - return acpu; - } - return NULL; -} - -int get_cpu_slice(cpuid_t cpu) -{ - klcpu_t *acpu; - - if ((acpu = sn_get_cpuinfo(cpu)) == NULL) - return -1; - return acpu->cpu_info.physid; -} diff --git a/arch/mips/sgi-ip27/ip27-klnuma.c b/arch/mips/sgi-ip27/ip27-klnuma.c index ee1c6ff4aa00..abd7a84df7dd 100644 --- a/arch/mips/sgi-ip27/ip27-klnuma.c +++ b/arch/mips/sgi-ip27/ip27-klnuma.c @@ -16,11 +16,11 @@ #include <asm/sn/types.h> #include <asm/sn/arch.h> #include <asm/sn/gda.h> -#include <asm/sn/hub.h> #include <asm/sn/mapped_kernel.h> -#include <asm/sn/sn_private.h> -static cpumask_t ktext_repmask; +#include "ip27-common.h" + +static nodemask_t ktext_repmask; /* * XXX - This needs to be much smarter about where it puts copies of the @@ -30,8 +30,8 @@ static cpumask_t ktext_repmask; void __init setup_replication_mask(void) { /* Set only the master cnode's bit. The master cnode is always 0. */ - cpumask_clear(&ktext_repmask); - cpumask_set_cpu(0, &ktext_repmask); + nodes_clear(ktext_repmask); + node_set(0, ktext_repmask); #ifdef CONFIG_REPLICATE_KTEXT #ifndef CONFIG_MAPPED_KERNEL @@ -44,7 +44,7 @@ void __init setup_replication_mask(void) if (nasid == 0) continue; /* Advertise that we have a copy of the kernel */ - cpumask_set_cpu(nasid, &ktext_repmask); + node_set(nasid, ktext_repmask); } } #endif @@ -98,7 +98,7 @@ void __init replicate_kernel_text(void) continue; /* Check if this node should get a copy of the kernel */ - if (cpumask_test_cpu(client_nasid, &ktext_repmask)) { + if (node_isset(client_nasid, ktext_repmask)) { server_nasid = client_nasid; copy_kernel(server_nasid); } @@ -122,7 +122,7 @@ unsigned long node_getfirstfree(nasid_t nasid) loadbase += 16777216; #endif offset = PAGE_ALIGN((unsigned long)(&_end)) - loadbase; - if ((nasid == 0) || (cpumask_test_cpu(nasid, &ktext_repmask))) + if ((nasid == 0) || (node_isset(nasid, ktext_repmask))) return TO_NODE(nasid, offset) >> PAGE_SHIFT; else return KDM_TO_PHYS(PAGE_ALIGN(SYMMON_STK_ADDR(nasid, 0))) >> PAGE_SHIFT; diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c index 563aad5e6398..a45691e6ab90 100644 --- a/arch/mips/sgi-ip27/ip27-memory.c +++ b/arch/mips/sgi-ip27/ip27-memory.c @@ -25,10 +25,10 @@ #include <asm/sections.h> #include <asm/sn/arch.h> -#include <asm/sn/hub.h> +#include <asm/sn/agent.h> #include <asm/sn/klconfig.h> -#include <asm/sn/sn_private.h> +#include "ip27-common.h" #define SLOT_PFNSHIFT (SLOT_SHIFT - PAGE_SHIFT) #define PFN_NASIDSHFT (NASID_SHFT - PAGE_SHIFT) @@ -37,31 +37,18 @@ struct node_data *__node_data[MAX_NUMNODES]; EXPORT_SYMBOL(__node_data); -static int fine_mode; - -static int is_fine_dirmode(void) -{ - return ((LOCAL_HUB_L(NI_STATUS_REV_ID) & NSRI_REGIONSIZE_MASK) >> NSRI_REGIONSIZE_SHFT) & REGIONSIZE_FINE; -} - -static u64 get_region(nasid_t nasid) -{ - if (fine_mode) - return nasid >> NASID_TO_FINEREG_SHFT; - else - return nasid >> NASID_TO_COARSEREG_SHFT; -} - -static u64 region_mask; - -static void gen_region_mask(u64 *region_mask) +static u64 gen_region_mask(void) { + int region_shift; + u64 region_mask; nasid_t nasid; - (*region_mask) = 0; - for_each_online_node(nasid) { - (*region_mask) |= 1ULL << get_region(nasid); - } + region_shift = get_region_shift(); + region_mask = 0; + for_each_online_node(nasid) + region_mask |= BIT_ULL(nasid >> region_shift); + + return region_mask; } #define rou_rflag rou_flags @@ -148,25 +135,25 @@ static int __init compute_node_distance(nasid_t nasid_a, nasid_t nasid_b) } while ((brd = find_lboard_class(KLCF_NEXT(brd), KLTYPE_ROUTER))); } + if (nasid_a == nasid_b) + return LOCAL_DISTANCE; + + if (router_a == router_b) + return LOCAL_DISTANCE + 1; + if (router_a == NULL) { pr_info("node_distance: router_a NULL\n"); - return -1; + return 255; } if (router_b == NULL) { pr_info("node_distance: router_b NULL\n"); - return -1; + return 255; } - if (nasid_a == nasid_b) - return 0; - - if (router_a == router_b) - return 1; - router_distance = 100; router_recurse(router_a, router_b, 2); - return router_distance; + return LOCAL_DISTANCE + router_distance; } static void __init init_topology_matrix(void) @@ -281,10 +268,10 @@ static unsigned long __init slot_psize_compute(nasid_t nasid, int slot) static void __init mlreset(void) { + u64 region_mask; nasid_t nasid; master_nasid = get_nasid(); - fine_mode = is_fine_dirmode(); /* * Probe for all CPUs - this creates the cpumask and sets up the @@ -297,7 +284,7 @@ static void __init mlreset(void) init_topology_matrix(); dump_topology(); - gen_region_mask(®ion_mask); + region_mask = gen_region_mask(); setup_replication_mask(); diff --git a/arch/mips/sgi-ip27/ip27-nmi.c b/arch/mips/sgi-ip27/ip27-nmi.c index daf3670d94e7..84889b57d5ff 100644 --- a/arch/mips/sgi-ip27/ip27-nmi.c +++ b/arch/mips/sgi-ip27/ip27-nmi.c @@ -9,7 +9,7 @@ #include <asm/sn/addrs.h> #include <asm/sn/nmi.h> #include <asm/sn/arch.h> -#include <asm/sn/sn0/hub.h> +#include <asm/sn/agent.h> #if 0 #define NODE_NUM_CPUS(n) CNODE_NUM_CPUS(n) @@ -17,6 +17,9 @@ #define NODE_NUM_CPUS(n) CPUS_PER_NODE #endif +#define SEND_NMI(_nasid, _slice) \ + REMOTE_HUB_S((_nasid), (PI_NMI_A + ((_slice) * PI_NMI_OFFSET)), 1) + typedef unsigned long machreg_t; static arch_spinlock_t nmi_lock = __ARCH_SPIN_LOCK_UNLOCKED; diff --git a/arch/mips/sgi-ip27/ip27-reset.c b/arch/mips/sgi-ip27/ip27-reset.c index 74d078247e49..5ac5ad638734 100644 --- a/arch/mips/sgi-ip27/ip27-reset.c +++ b/arch/mips/sgi-ip27/ip27-reset.c @@ -22,9 +22,9 @@ #include <asm/reboot.h> #include <asm/sgialib.h> #include <asm/sn/addrs.h> +#include <asm/sn/agent.h> #include <asm/sn/arch.h> #include <asm/sn/gda.h> -#include <asm/sn/sn0/hub.h> #include "ip27-common.h" diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c index faa0244c8b0c..5d2652a1d35a 100644 --- a/arch/mips/sgi-ip27/ip27-smp.c +++ b/arch/mips/sgi-ip27/ip27-smp.c @@ -15,36 +15,22 @@ #include <asm/page.h> #include <asm/processor.h> #include <asm/ptrace.h> +#include <asm/sn/agent.h> #include <asm/sn/arch.h> #include <asm/sn/gda.h> #include <asm/sn/intr.h> #include <asm/sn/klconfig.h> #include <asm/sn/launch.h> #include <asm/sn/mapped_kernel.h> -#include <asm/sn/sn_private.h> #include <asm/sn/types.h> -#include <asm/sn/sn0/hubpi.h> -#include <asm/sn/sn0/hubio.h> -#include <asm/sn/sn0/ip27.h> #include "ip27-common.h" -/* - * Takes as first input the PROM assigned cpu id, and the kernel - * assigned cpu id as the second. - */ -static void alloc_cpupda(nasid_t nasid, cpuid_t cpu, int cpunum) -{ - cputonasid(cpunum) = nasid; - cputoslice(cpunum) = get_cpu_slice(cpu); -} - -static int do_cpumask(nasid_t nasid, int highest) +static int node_scan_cpus(nasid_t nasid, int highest) { - static int tot_cpus_found = 0; + static int cpus_found; lboard_t *brd; klcpu_t *acpu; - int cpus_found = 0; cpuid_t cpuid; brd = find_lboard((lboard_t *)KL_CONFIG_INFO(nasid), KLTYPE_IP27); @@ -55,13 +41,15 @@ static int do_cpumask(nasid_t nasid, int highest) cpuid = acpu->cpu_info.virtid; /* Only let it join in if it's marked enabled */ if ((acpu->cpu_info.flags & KLINFO_ENABLE) && - (tot_cpus_found != NR_CPUS)) { + (cpus_found != NR_CPUS)) { if (cpuid > highest) highest = cpuid; set_cpu_possible(cpuid, true); - alloc_cpupda(nasid, cpuid, tot_cpus_found); + cputonasid(cpus_found) = nasid; + cputoslice(cpus_found) = acpu->cpu_info.physid; + sn_cpu_info[cpus_found].p_speed = + acpu->cpu_speed; cpus_found++; - tot_cpus_found++; } acpu = (klcpu_t *)find_component(brd, (klinfo_t *)acpu, KLSTRUCT_CPU); @@ -87,7 +75,7 @@ void cpu_node_probe(void) if (nasid == INVALID_NASID) break; node_set_online(nasid); - highest = do_cpumask(nasid, highest); + highest = node_scan_cpus(nasid, highest); } printk("Discovered %d cpus on %d nodes\n", highest + 1, num_online_nodes()); @@ -180,7 +168,8 @@ static void __init ip27_smp_setup(void) /* * PROM sets up system, that boot cpu is always first CPU on nasid 0 */ - alloc_cpupda(0, 0, 0); + cputonasid(0) = 0; + cputoslice(0) = LOCAL_HUB_L(PI_CPU_NUM); } static void __init ip27_prepare_cpus(unsigned int max_cpus) diff --git a/arch/mips/sgi-ip27/ip27-timer.c b/arch/mips/sgi-ip27/ip27-timer.c index 17302bbfa7a6..61f3565f3645 100644 --- a/arch/mips/sgi-ip27/ip27-timer.c +++ b/arch/mips/sgi-ip27/ip27-timer.c @@ -25,17 +25,14 @@ #include <asm/sn/klconfig.h> #include <asm/sn/arch.h> #include <asm/sn/addrs.h> -#include <asm/sn/sn_private.h> -#include <asm/sn/sn0/ip27.h> -#include <asm/sn/sn0/hub.h> +#include <asm/sn/agent.h> + +#include "ip27-common.h" #define TICK_SIZE (tick_nsec / 1000) /* Includes for ioc3_init(). */ #include <asm/sn/types.h> -#include <asm/sn/sn0/addrs.h> -#include <asm/sn/sn0/hubni.h> -#include <asm/sn/sn0/hubio.h> #include <asm/pci/bridge.h> #include "ip27-common.h" @@ -153,25 +150,6 @@ void __init plat_time_init(void) hub_rt_clock_event_init(); } -void cpu_time_init(void) -{ - lboard_t *board; - klcpu_t *cpu; - int cpuid; - - /* Don't use ARCS. ARCS is fragile. Klconfig is simple and sane. */ - board = find_lboard(KL_CONFIG_INFO(get_nasid()), KLTYPE_IP27); - if (!board) - panic("Can't find board info for myself."); - - cpuid = LOCAL_HUB_L(PI_CPU_NUM) ? IP27_CPU0_INDEX : IP27_CPU1_INDEX; - cpu = (klcpu_t *) KLCF_COMP(board, cpuid); - if (!cpu) - panic("No information about myself?"); - - printk("CPU %d clock is %dMHz.\n", smp_processor_id(), cpu->cpu_speed); -} - void hub_rtc_init(nasid_t nasid) { @@ -190,23 +168,3 @@ void hub_rtc_init(nasid_t nasid) LOCAL_HUB_S(PI_RT_PEND_B, 0); } } - -static int __init sgi_ip27_rtc_devinit(void) -{ - struct resource res; - - memset(&res, 0, sizeof(res)); - res.start = XPHYSADDR(KL_CONFIG_CH_CONS_INFO(master_nasid)->memory_base + - IOC3_BYTEBUS_DEV0); - res.end = res.start + 32767; - res.flags = IORESOURCE_MEM; - - return IS_ERR(platform_device_register_simple("rtc-m48t35", -1, - &res, 1)); -} - -/* - * kludge make this a device_initcall after ioc3 resource conflicts - * are resolved - */ -late_initcall(sgi_ip27_rtc_devinit); diff --git a/arch/mips/sgi-ip27/ip27-xtalk.c b/arch/mips/sgi-ip27/ip27-xtalk.c index 5218b900f855..000ede156bdc 100644 --- a/arch/mips/sgi-ip27/ip27-xtalk.c +++ b/arch/mips/sgi-ip27/ip27-xtalk.c @@ -15,7 +15,6 @@ #include <asm/sn/addrs.h> #include <asm/sn/types.h> #include <asm/sn/klconfig.h> -#include <asm/sn/hub.h> #include <asm/pci/bridge.h> #include <asm/xtalk/xtalk.h> diff --git a/arch/mips/sgi-ip30/ip30-irq.c b/arch/mips/sgi-ip30/ip30-irq.c index d46655b914f1..c2ffcb920250 100644 --- a/arch/mips/sgi-ip30/ip30-irq.c +++ b/arch/mips/sgi-ip30/ip30-irq.c @@ -232,9 +232,10 @@ static void heart_domain_free(struct irq_domain *domain, return; irqd = irq_domain_get_irq_data(domain, virq); - clear_bit(irqd->hwirq, heart_irq_map); - if (irqd && irqd->chip_data) + if (irqd) { + clear_bit(irqd->hwirq, heart_irq_map); kfree(irqd->chip_data); + } } static const struct irq_domain_ops heart_domain_ops = { diff --git a/arch/mips/vdso/genvdso.c b/arch/mips/vdso/genvdso.c index b66b6b1c4aeb..be57b832bbe0 100644 --- a/arch/mips/vdso/genvdso.c +++ b/arch/mips/vdso/genvdso.c @@ -251,6 +251,18 @@ int main(int argc, char **argv) fprintf(out_file, "#include <linux/linkage.h>\n"); fprintf(out_file, "#include <linux/mm.h>\n"); fprintf(out_file, "#include <asm/vdso.h>\n"); + fprintf(out_file, "static int vdso_mremap(\n"); + fprintf(out_file, " const struct vm_special_mapping *sm,\n"); + fprintf(out_file, " struct vm_area_struct *new_vma)\n"); + fprintf(out_file, "{\n"); + fprintf(out_file, " unsigned long new_size =\n"); + fprintf(out_file, " new_vma->vm_end - new_vma->vm_start;\n"); + fprintf(out_file, " if (vdso_image.size != new_size)\n"); + fprintf(out_file, " return -EINVAL;\n"); + fprintf(out_file, " current->mm->context.vdso =\n"); + fprintf(out_file, " (void __user *)(new_vma->vm_start);\n"); + fprintf(out_file, " return 0;\n"); + fprintf(out_file, "}\n"); /* Write out the stripped VDSO data. */ fprintf(out_file, @@ -275,6 +287,7 @@ int main(int argc, char **argv) fprintf(out_file, "\t.mapping = {\n"); fprintf(out_file, "\t\t.name = \"[vdso]\",\n"); fprintf(out_file, "\t\t.pages = vdso_pages,\n"); + fprintf(out_file, "\t\t.mremap = vdso_mremap,\n"); fprintf(out_file, "\t},\n"); /* Calculate and write symbol offsets to <output file> */ diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 420900852166..7a4a41dddc97 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -2004,5 +2004,18 @@ config RAVE_SP_CORE Select this to get support for the Supervisory Processor device found on several devices in RAVE line of hardware. +config SGI_MFD_IOC3 + tristate "SGI IOC3 core driver" + depends on PCI && MIPS && 64BIT + select MFD_CORE + help + This option enables basic support for the SGI IOC3-based + controller cards. This option does not enable any specific + functions on such a card, but provides necessary infrastructure + for other drivers to utilize. + + If you have an SGI Origin, Octane, or a PCI IOC3 card, + then say Y. Otherwise say N. + endmenu endif diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index aed99f08739f..5fe930c76ade 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -255,3 +255,4 @@ obj-$(CONFIG_MFD_ROHM_BD70528) += rohm-bd70528.o obj-$(CONFIG_MFD_ROHM_BD718XX) += rohm-bd718x7.o obj-$(CONFIG_MFD_STMFX) += stmfx.o +obj-$(CONFIG_SGI_MFD_IOC3) += ioc3.o diff --git a/drivers/mfd/ioc3.c b/drivers/mfd/ioc3.c new file mode 100644 index 000000000000..02998d4eb74b --- /dev/null +++ b/drivers/mfd/ioc3.c @@ -0,0 +1,669 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * SGI IOC3 multifunction device driver + * + * Copyright (C) 2018, 2019 Thomas Bogendoerfer <tbogendoerfer@suse.de> + * + * Based on work by: + * Stanislaw Skowronek <skylark@unaligned.org> + * Joshua Kinard <kumba@gentoo.org> + * Brent Casavant <bcasavan@sgi.com> - IOC4 master driver + * Pat Gefre <pfg@sgi.com> - IOC3 serial port IRQ demuxer + */ + +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/interrupt.h> +#include <linux/mfd/core.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/platform_device.h> +#include <linux/platform_data/sgi-w1.h> +#include <linux/rtc/ds1685.h> + +#include <asm/pci/bridge.h> +#include <asm/sn/ioc3.h> + +#define IOC3_IRQ_SERIAL_A 6 +#define IOC3_IRQ_SERIAL_B 15 +#define IOC3_IRQ_KBD 22 + +/* Bitmask for selecting which IRQs are level triggered */ +#define IOC3_LVL_MASK (BIT(IOC3_IRQ_SERIAL_A) | BIT(IOC3_IRQ_SERIAL_B)) + +#define M48T35_REG_SIZE 32768 /* size of m48t35 registers */ + +/* 1.2 us latency timer (40 cycles at 33 MHz) */ +#define IOC3_LATENCY 40 + +struct ioc3_priv_data { + struct irq_domain *domain; + struct ioc3 __iomem *regs; + struct pci_dev *pdev; + int domain_irq; +}; + +static void ioc3_irq_ack(struct irq_data *d) +{ + struct ioc3_priv_data *ipd = irq_data_get_irq_chip_data(d); + unsigned int hwirq = irqd_to_hwirq(d); + + writel(BIT(hwirq), &ipd->regs->sio_ir); +} + +static void ioc3_irq_mask(struct irq_data *d) +{ + struct ioc3_priv_data *ipd = irq_data_get_irq_chip_data(d); + unsigned int hwirq = irqd_to_hwirq(d); + + writel(BIT(hwirq), &ipd->regs->sio_iec); +} + +static void ioc3_irq_unmask(struct irq_data *d) +{ + struct ioc3_priv_data *ipd = irq_data_get_irq_chip_data(d); + unsigned int hwirq = irqd_to_hwirq(d); + + writel(BIT(hwirq), &ipd->regs->sio_ies); +} + +static struct irq_chip ioc3_irq_chip = { + .name = "IOC3", + .irq_ack = ioc3_irq_ack, + .irq_mask = ioc3_irq_mask, + .irq_unmask = ioc3_irq_unmask, +}; + +static int ioc3_irq_domain_map(struct irq_domain *d, unsigned int irq, + irq_hw_number_t hwirq) +{ + /* Set level IRQs for every interrupt contained in IOC3_LVL_MASK */ + if (BIT(hwirq) & IOC3_LVL_MASK) + irq_set_chip_and_handler(irq, &ioc3_irq_chip, handle_level_irq); + else + irq_set_chip_and_handler(irq, &ioc3_irq_chip, handle_edge_irq); + + irq_set_chip_data(irq, d->host_data); + return 0; +} + +static void ioc3_irq_domain_unmap(struct irq_domain *d, unsigned int irq) +{ + irq_set_chip_and_handler(irq, NULL, NULL); + irq_set_chip_data(irq, NULL); +} + +static const struct irq_domain_ops ioc3_irq_domain_ops = { + .map = ioc3_irq_domain_map, + .unmap = ioc3_irq_domain_unmap, +}; + +static void ioc3_irq_handler(struct irq_desc *desc) +{ + struct irq_domain *domain = irq_desc_get_handler_data(desc); + struct ioc3_priv_data *ipd = domain->host_data; + struct ioc3 __iomem *regs = ipd->regs; + u32 pending, mask; + unsigned int irq; + + pending = readl(®s->sio_ir); + mask = readl(®s->sio_ies); + pending &= mask; /* Mask off not enabled interrupts */ + + if (pending) { + irq = irq_find_mapping(domain, __ffs(pending)); + if (irq) + generic_handle_irq(irq); + } else { + spurious_interrupt(); + } +} + +/* + * System boards/BaseIOs use more interrupt pins of the bridge ASIC + * to which the IOC3 is connected. Since the IOC3 MFD driver + * knows wiring of these extra pins, we use the map_irq function + * to get interrupts activated + */ +static int ioc3_map_irq(struct pci_dev *pdev, int slot, int pin) +{ + struct pci_host_bridge *hbrg = pci_find_host_bridge(pdev->bus); + + return hbrg->map_irq(pdev, slot, pin); +} + +static int ioc3_irq_domain_setup(struct ioc3_priv_data *ipd, int irq) +{ + struct irq_domain *domain; + struct fwnode_handle *fn; + + fn = irq_domain_alloc_named_fwnode("IOC3"); + if (!fn) + goto err; + + domain = irq_domain_create_linear(fn, 24, &ioc3_irq_domain_ops, ipd); + if (!domain) + goto err; + + irq_domain_free_fwnode(fn); + ipd->domain = domain; + + irq_set_chained_handler_and_data(irq, ioc3_irq_handler, domain); + ipd->domain_irq = irq; + return 0; + +err: + dev_err(&ipd->pdev->dev, "irq domain setup failed\n"); + return -ENOMEM; +} + +static struct resource ioc3_uarta_resources[] = { + DEFINE_RES_MEM(offsetof(struct ioc3, sregs.uarta), + sizeof_field(struct ioc3, sregs.uarta)), + DEFINE_RES_IRQ(IOC3_IRQ_SERIAL_A) +}; + +static struct resource ioc3_uartb_resources[] = { + DEFINE_RES_MEM(offsetof(struct ioc3, sregs.uartb), + sizeof_field(struct ioc3, sregs.uartb)), + DEFINE_RES_IRQ(IOC3_IRQ_SERIAL_B) +}; + +static struct mfd_cell ioc3_serial_cells[] = { + { + .name = "ioc3-serial8250", + .resources = ioc3_uarta_resources, + .num_resources = ARRAY_SIZE(ioc3_uarta_resources), + }, + { + .name = "ioc3-serial8250", + .resources = ioc3_uartb_resources, + .num_resources = ARRAY_SIZE(ioc3_uartb_resources), + } +}; + +static int ioc3_serial_setup(struct ioc3_priv_data *ipd) +{ + int ret; + + /* Set gpio pins for RS232/RS422 mode selection */ + writel(GPCR_UARTA_MODESEL | GPCR_UARTB_MODESEL, + &ipd->regs->gpcr_s); + /* Select RS232 mode for uart a */ + writel(0, &ipd->regs->gppr[6]); + /* Select RS232 mode for uart b */ + writel(0, &ipd->regs->gppr[7]); + + /* Switch both ports to 16650 mode */ + writel(readl(&ipd->regs->port_a.sscr) & ~SSCR_DMA_EN, + &ipd->regs->port_a.sscr); + writel(readl(&ipd->regs->port_b.sscr) & ~SSCR_DMA_EN, + &ipd->regs->port_b.sscr); + udelay(1000); /* Wait until mode switch is done */ + + ret = mfd_add_devices(&ipd->pdev->dev, PLATFORM_DEVID_AUTO, + ioc3_serial_cells, ARRAY_SIZE(ioc3_serial_cells), + &ipd->pdev->resource[0], 0, ipd->domain); + if (ret) { + dev_err(&ipd->pdev->dev, "Failed to add 16550 subdevs\n"); + return ret; + } + + return 0; +} + +static struct resource ioc3_kbd_resources[] = { + DEFINE_RES_MEM(offsetof(struct ioc3, serio), + sizeof_field(struct ioc3, serio)), + DEFINE_RES_IRQ(IOC3_IRQ_KBD) +}; + +static struct mfd_cell ioc3_kbd_cells[] = { + { + .name = "ioc3-kbd", + .resources = ioc3_kbd_resources, + .num_resources = ARRAY_SIZE(ioc3_kbd_resources), + } +}; + +static int ioc3_kbd_setup(struct ioc3_priv_data *ipd) +{ + int ret; + + ret = mfd_add_devices(&ipd->pdev->dev, PLATFORM_DEVID_AUTO, + ioc3_kbd_cells, ARRAY_SIZE(ioc3_kbd_cells), + &ipd->pdev->resource[0], 0, ipd->domain); + if (ret) { + dev_err(&ipd->pdev->dev, "Failed to add 16550 subdevs\n"); + return ret; + } + + return 0; +} + +static struct resource ioc3_eth_resources[] = { + DEFINE_RES_MEM(offsetof(struct ioc3, eth), + sizeof_field(struct ioc3, eth)), + DEFINE_RES_MEM(offsetof(struct ioc3, ssram), + sizeof_field(struct ioc3, ssram)), + DEFINE_RES_IRQ(0) +}; + +static struct resource ioc3_w1_resources[] = { + DEFINE_RES_MEM(offsetof(struct ioc3, mcr), + sizeof_field(struct ioc3, mcr)), +}; +static struct sgi_w1_platform_data ioc3_w1_platform_data; + +static struct mfd_cell ioc3_eth_cells[] = { + { + .name = "ioc3-eth", + .resources = ioc3_eth_resources, + .num_resources = ARRAY_SIZE(ioc3_eth_resources), + }, + { + .name = "sgi_w1", + .resources = ioc3_w1_resources, + .num_resources = ARRAY_SIZE(ioc3_w1_resources), + .platform_data = &ioc3_w1_platform_data, + .pdata_size = sizeof(ioc3_w1_platform_data), + } +}; + +static int ioc3_eth_setup(struct ioc3_priv_data *ipd) +{ + int ret; + + /* Enable One-Wire bus */ + writel(GPCR_MLAN_EN, &ipd->regs->gpcr_s); + + /* Generate unique identifier */ + snprintf(ioc3_w1_platform_data.dev_id, + sizeof(ioc3_w1_platform_data.dev_id), "ioc3-%012llx", + ipd->pdev->resource->start); + + ret = mfd_add_devices(&ipd->pdev->dev, PLATFORM_DEVID_AUTO, + ioc3_eth_cells, ARRAY_SIZE(ioc3_eth_cells), + &ipd->pdev->resource[0], ipd->pdev->irq, NULL); + if (ret) { + dev_err(&ipd->pdev->dev, "Failed to add ETH/W1 subdev\n"); + return ret; + } + + return 0; +} + +static struct resource ioc3_m48t35_resources[] = { + DEFINE_RES_MEM(IOC3_BYTEBUS_DEV0, M48T35_REG_SIZE) +}; + +static struct mfd_cell ioc3_m48t35_cells[] = { + { + .name = "rtc-m48t35", + .resources = ioc3_m48t35_resources, + .num_resources = ARRAY_SIZE(ioc3_m48t35_resources), + } +}; + +static int ioc3_m48t35_setup(struct ioc3_priv_data *ipd) +{ + int ret; + + ret = mfd_add_devices(&ipd->pdev->dev, PLATFORM_DEVID_AUTO, + ioc3_m48t35_cells, ARRAY_SIZE(ioc3_m48t35_cells), + &ipd->pdev->resource[0], 0, ipd->domain); + if (ret) + dev_err(&ipd->pdev->dev, "Failed to add M48T35 subdev\n"); + + return ret; +} + +static struct ds1685_rtc_platform_data ip30_rtc_platform_data = { + .bcd_mode = false, + .no_irq = false, + .uie_unsupported = true, + .access_type = ds1685_reg_indirect, +}; + +static struct resource ioc3_rtc_ds1685_resources[] = { + DEFINE_RES_MEM(IOC3_BYTEBUS_DEV1, 1), + DEFINE_RES_MEM(IOC3_BYTEBUS_DEV2, 1), + DEFINE_RES_IRQ(0) +}; + +static struct mfd_cell ioc3_ds1685_cells[] = { + { + .name = "rtc-ds1685", + .resources = ioc3_rtc_ds1685_resources, + .num_resources = ARRAY_SIZE(ioc3_rtc_ds1685_resources), + .platform_data = &ip30_rtc_platform_data, + .pdata_size = sizeof(ip30_rtc_platform_data), + .id = PLATFORM_DEVID_NONE, + } +}; + +static int ioc3_ds1685_setup(struct ioc3_priv_data *ipd) +{ + int ret, irq; + + irq = ioc3_map_irq(ipd->pdev, 6, 0); + + ret = mfd_add_devices(&ipd->pdev->dev, 0, ioc3_ds1685_cells, + ARRAY_SIZE(ioc3_ds1685_cells), + &ipd->pdev->resource[0], irq, NULL); + if (ret) + dev_err(&ipd->pdev->dev, "Failed to add DS1685 subdev\n"); + + return ret; +}; + + +static struct resource ioc3_leds_resources[] = { + DEFINE_RES_MEM(offsetof(struct ioc3, gppr[0]), + sizeof_field(struct ioc3, gppr[0])), + DEFINE_RES_MEM(offsetof(struct ioc3, gppr[1]), + sizeof_field(struct ioc3, gppr[1])), +}; + +static struct mfd_cell ioc3_led_cells[] = { + { + .name = "ip30-leds", + .resources = ioc3_leds_resources, + .num_resources = ARRAY_SIZE(ioc3_leds_resources), + .id = PLATFORM_DEVID_NONE, + } +}; + +static int ioc3_led_setup(struct ioc3_priv_data *ipd) +{ + int ret; + + ret = mfd_add_devices(&ipd->pdev->dev, 0, ioc3_led_cells, + ARRAY_SIZE(ioc3_led_cells), + &ipd->pdev->resource[0], 0, ipd->domain); + if (ret) + dev_err(&ipd->pdev->dev, "Failed to add LED subdev\n"); + + return ret; +} + +static int ip27_baseio_setup(struct ioc3_priv_data *ipd) +{ + int ret, io_irq; + + io_irq = ioc3_map_irq(ipd->pdev, PCI_SLOT(ipd->pdev->devfn), + PCI_INTERRUPT_INTB); + ret = ioc3_irq_domain_setup(ipd, io_irq); + if (ret) + return ret; + + ret = ioc3_eth_setup(ipd); + if (ret) + return ret; + + ret = ioc3_serial_setup(ipd); + if (ret) + return ret; + + return ioc3_m48t35_setup(ipd); +} + +static int ip27_baseio6g_setup(struct ioc3_priv_data *ipd) +{ + int ret, io_irq; + + io_irq = ioc3_map_irq(ipd->pdev, PCI_SLOT(ipd->pdev->devfn), + PCI_INTERRUPT_INTB); + ret = ioc3_irq_domain_setup(ipd, io_irq); + if (ret) + return ret; + + ret = ioc3_eth_setup(ipd); + if (ret) + return ret; + + ret = ioc3_serial_setup(ipd); + if (ret) + return ret; + + ret = ioc3_m48t35_setup(ipd); + if (ret) + return ret; + + return ioc3_kbd_setup(ipd); +} + +static int ip27_mio_setup(struct ioc3_priv_data *ipd) +{ + int ret; + + ret = ioc3_irq_domain_setup(ipd, ipd->pdev->irq); + if (ret) + return ret; + + ret = ioc3_serial_setup(ipd); + if (ret) + return ret; + + return ioc3_kbd_setup(ipd); +} + +static int ip30_sysboard_setup(struct ioc3_priv_data *ipd) +{ + int ret, io_irq; + + io_irq = ioc3_map_irq(ipd->pdev, PCI_SLOT(ipd->pdev->devfn), + PCI_INTERRUPT_INTB); + ret = ioc3_irq_domain_setup(ipd, io_irq); + if (ret) + return ret; + + ret = ioc3_eth_setup(ipd); + if (ret) + return ret; + + ret = ioc3_serial_setup(ipd); + if (ret) + return ret; + + ret = ioc3_kbd_setup(ipd); + if (ret) + return ret; + + ret = ioc3_ds1685_setup(ipd); + if (ret) + return ret; + + return ioc3_led_setup(ipd); +} + +static int ioc3_menet_setup(struct ioc3_priv_data *ipd) +{ + int ret, io_irq; + + io_irq = ioc3_map_irq(ipd->pdev, PCI_SLOT(ipd->pdev->devfn), + PCI_INTERRUPT_INTB); + ret = ioc3_irq_domain_setup(ipd, io_irq); + if (ret) + return ret; + + ret = ioc3_eth_setup(ipd); + if (ret) + return ret; + + return ioc3_serial_setup(ipd); +} + +static int ioc3_menet4_setup(struct ioc3_priv_data *ipd) +{ + return ioc3_eth_setup(ipd); +} + +static int ioc3_cad_duo_setup(struct ioc3_priv_data *ipd) +{ + int ret, io_irq; + + io_irq = ioc3_map_irq(ipd->pdev, PCI_SLOT(ipd->pdev->devfn), + PCI_INTERRUPT_INTB); + ret = ioc3_irq_domain_setup(ipd, io_irq); + if (ret) + return ret; + + ret = ioc3_eth_setup(ipd); + if (ret) + return ret; + + return ioc3_kbd_setup(ipd); +} + +/* Helper macro for filling ioc3_info array */ +#define IOC3_SID(_name, _sid, _setup) \ + { \ + .name = _name, \ + .sid = PCI_VENDOR_ID_SGI | (IOC3_SUBSYS_ ## _sid << 16), \ + .setup = _setup, \ + } + +static struct { + const char *name; + u32 sid; + int (*setup)(struct ioc3_priv_data *ipd); +} ioc3_infos[] = { + IOC3_SID("IP27 BaseIO6G", IP27_BASEIO6G, &ip27_baseio6g_setup), + IOC3_SID("IP27 MIO", IP27_MIO, &ip27_mio_setup), + IOC3_SID("IP27 BaseIO", IP27_BASEIO, &ip27_baseio_setup), + IOC3_SID("IP29 System Board", IP29_SYSBOARD, &ip27_baseio6g_setup), + IOC3_SID("IP30 System Board", IP30_SYSBOARD, &ip30_sysboard_setup), + IOC3_SID("MENET", MENET, &ioc3_menet_setup), + IOC3_SID("MENET4", MENET4, &ioc3_menet4_setup) +}; +#undef IOC3_SID + +static int ioc3_setup(struct ioc3_priv_data *ipd) +{ + u32 sid; + int i; + + /* Clear IRQs */ + writel(~0, &ipd->regs->sio_iec); + writel(~0, &ipd->regs->sio_ir); + writel(0, &ipd->regs->eth.eier); + writel(~0, &ipd->regs->eth.eisr); + + /* Read subsystem vendor id and subsystem id */ + pci_read_config_dword(ipd->pdev, PCI_SUBSYSTEM_VENDOR_ID, &sid); + + for (i = 0; i < ARRAY_SIZE(ioc3_infos); i++) + if (sid == ioc3_infos[i].sid) { + pr_info("ioc3: %s\n", ioc3_infos[i].name); + return ioc3_infos[i].setup(ipd); + } + + /* Treat everything not identified by PCI subid as CAD DUO */ + pr_info("ioc3: CAD DUO\n"); + return ioc3_cad_duo_setup(ipd); +} + +static int ioc3_mfd_probe(struct pci_dev *pdev, + const struct pci_device_id *pci_id) +{ + struct ioc3_priv_data *ipd; + struct ioc3 __iomem *regs; + int ret; + + ret = pci_enable_device(pdev); + if (ret) + return ret; + + pci_write_config_byte(pdev, PCI_LATENCY_TIMER, IOC3_LATENCY); + pci_set_master(pdev); + + ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); + if (ret) { + pr_err("%s: No usable DMA configuration, aborting.\n", + pci_name(pdev)); + goto out_disable_device; + } + + /* Set up per-IOC3 data */ + ipd = devm_kzalloc(&pdev->dev, sizeof(struct ioc3_priv_data), + GFP_KERNEL); + if (!ipd) { + ret = -ENOMEM; + goto out_disable_device; + } + ipd->pdev = pdev; + + /* + * Map all IOC3 registers. These are shared between subdevices + * so the main IOC3 module manages them. + */ + regs = pci_ioremap_bar(pdev, 0); + if (!regs) { + dev_warn(&pdev->dev, "ioc3: Unable to remap PCI BAR for %s.\n", + pci_name(pdev)); + ret = -ENOMEM; + goto out_disable_device; + } + ipd->regs = regs; + + /* Track PCI-device specific data */ + pci_set_drvdata(pdev, ipd); + + ret = ioc3_setup(ipd); + if (ret) { + /* Remove all already added MFD devices */ + mfd_remove_devices(&ipd->pdev->dev); + if (ipd->domain) { + irq_domain_remove(ipd->domain); + free_irq(ipd->domain_irq, (void *)ipd); + } + pci_iounmap(pdev, regs); + goto out_disable_device; + } + + return 0; + +out_disable_device: + pci_disable_device(pdev); + return ret; +} + +static void ioc3_mfd_remove(struct pci_dev *pdev) +{ + struct ioc3_priv_data *ipd; + + ipd = pci_get_drvdata(pdev); + + /* Clear and disable all IRQs */ + writel(~0, &ipd->regs->sio_iec); + writel(~0, &ipd->regs->sio_ir); + + /* Release resources */ + mfd_remove_devices(&ipd->pdev->dev); + if (ipd->domain) { + irq_domain_remove(ipd->domain); + free_irq(ipd->domain_irq, (void *)ipd); + } + pci_iounmap(pdev, ipd->regs); + pci_disable_device(pdev); +} + +static struct pci_device_id ioc3_mfd_id_table[] = { + { PCI_VENDOR_ID_SGI, PCI_DEVICE_ID_SGI_IOC3, PCI_ANY_ID, PCI_ANY_ID }, + { 0, }, +}; +MODULE_DEVICE_TABLE(pci, ioc3_mfd_id_table); + +static struct pci_driver ioc3_mfd_driver = { + .name = "IOC3", + .id_table = ioc3_mfd_id_table, + .probe = ioc3_mfd_probe, + .remove = ioc3_mfd_remove, +}; + +module_pci_driver(ioc3_mfd_driver); + +MODULE_AUTHOR("Thomas Bogendoerfer <tbogendoerfer@suse.de>"); +MODULE_DESCRIPTION("SGI IOC3 MFD driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/net/ethernet/sgi/Kconfig b/drivers/net/ethernet/sgi/Kconfig index 37f048e1230c..bc26fa0d196f 100644 --- a/drivers/net/ethernet/sgi/Kconfig +++ b/drivers/net/ethernet/sgi/Kconfig @@ -6,7 +6,7 @@ config NET_VENDOR_SGI bool "SGI devices" default y - depends on (PCI && SGI_IP27) || SGI_IP32 + depends on (PCI && SGI_MFD_IOC3) || SGI_IP32 ---help--- If you have a network (Ethernet) card belonging to this class, say Y. @@ -19,7 +19,8 @@ if NET_VENDOR_SGI config SGI_IOC3_ETH bool "SGI IOC3 Ethernet" - depends on PCI && SGI_IP27 + depends on PCI && SGI_MFD_IOC3 + select CRC16 select CRC32 select MII ---help--- diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c index 06637b03deed..e61eb891c0f7 100644 --- a/drivers/net/ethernet/sgi/ioc3-eth.c +++ b/drivers/net/ethernet/sgi/ioc3-eth.c @@ -14,7 +14,6 @@ * o Use prefetching for large packets. What is a good lower limit for * prefetching? * o Use hardware checksums. - * o Convert to using a IOC3 meta driver. * o Which PHYs might possibly be attached to the IOC3 in real live, * which workarounds are required for them? Do we ever have Lucent's? * o For the 2.5 branch kill the mii-tool ioctls. @@ -28,7 +27,8 @@ #include <linux/mm.h> #include <linux/errno.h> #include <linux/module.h> -#include <linux/pci.h> +#include <linux/init.h> +#include <linux/crc16.h> #include <linux/crc32.h> #include <linux/mii.h> #include <linux/in.h> @@ -37,28 +37,22 @@ #include <linux/tcp.h> #include <linux/udp.h> #include <linux/gfp.h> - -#ifdef CONFIG_SERIAL_8250 -#include <linux/serial_core.h> -#include <linux/serial_8250.h> -#include <linux/serial_reg.h> -#endif - #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> #include <linux/skbuff.h> #include <linux/dma-mapping.h> +#include <linux/platform_device.h> +#include <linux/nvmem-consumer.h> #include <net/ip.h> -#include <asm/byteorder.h> -#include <asm/pgtable.h> -#include <linux/uaccess.h> -#include <asm/sn/types.h> #include <asm/sn/ioc3.h> #include <asm/pci/bridge.h> +#define CRC16_INIT 0 +#define CRC16_VALID 0xb001 + /* Number of RX buffers. This is tunable in the range of 16 <= x < 512. * The value must be a power of two. */ @@ -85,7 +79,6 @@ /* Private per NIC data of the driver. */ struct ioc3_private { struct ioc3_ethregs *regs; - struct ioc3 *all_regs; struct device *dma_dev; u32 *ssram; unsigned long *rxr; /* pointer to receiver ring */ @@ -104,9 +97,6 @@ struct ioc3_private { spinlock_t ioc3_lock; struct mii_if_info mii; - struct net_device *dev; - struct pci_dev *pdev; - /* Members used by autonegotiation */ struct timer_list ioc3_timer; }; @@ -123,10 +113,8 @@ static int ioc3_alloc_rx_bufs(struct net_device *dev); static void ioc3_free_rx_bufs(struct ioc3_private *ip); static inline void ioc3_clean_tx_ring(struct ioc3_private *ip); -static const char ioc3_str[] = "IOC3 Ethernet"; static const struct ethtool_ops ioc3_ethtool_ops; - static inline unsigned long aligned_rx_skb_addr(unsigned long addr) { return (~addr + 1) & (IOC3_DMA_XFER_LEN - 1UL); @@ -179,225 +167,61 @@ static inline unsigned long ioc3_map(dma_addr_t addr, unsigned long attr) #define ERBAR_VAL 0 #endif -#define IOC3_SIZE 0x100000 - -static inline u32 mcr_pack(u32 pulse, u32 sample) -{ - return (pulse << 10) | (sample << 2); -} - -static int nic_wait(u32 __iomem *mcr) -{ - u32 m; - - do { - m = readl(mcr); - } while (!(m & 2)); - - return m & 1; -} - -static int nic_reset(u32 __iomem *mcr) -{ - int presence; - - writel(mcr_pack(500, 65), mcr); - presence = nic_wait(mcr); - - writel(mcr_pack(0, 500), mcr); - nic_wait(mcr); - - return presence; -} - -static inline int nic_read_bit(u32 __iomem *mcr) -{ - int result; - - writel(mcr_pack(6, 13), mcr); - result = nic_wait(mcr); - writel(mcr_pack(0, 100), mcr); - nic_wait(mcr); - - return result; -} - -static inline void nic_write_bit(u32 __iomem *mcr, int bit) +static int ioc3eth_nvmem_match(struct device *dev, const void *data) { - if (bit) - writel(mcr_pack(6, 110), mcr); - else - writel(mcr_pack(80, 30), mcr); + const char *name = dev_name(dev); + const char *prefix = data; + int prefix_len; - nic_wait(mcr); -} - -/* Read a byte from an iButton device - */ -static u32 nic_read_byte(u32 __iomem *mcr) -{ - u32 result = 0; - int i; + prefix_len = strlen(prefix); + if (strlen(name) < (prefix_len + 3)) + return 0; - for (i = 0; i < 8; i++) - result = (result >> 1) | (nic_read_bit(mcr) << 7); + if (memcmp(prefix, name, prefix_len) != 0) + return 0; - return result; -} - -/* Write a byte to an iButton device - */ -static void nic_write_byte(u32 __iomem *mcr, int byte) -{ - int i, bit; - - for (i = 8; i; i--) { - bit = byte & 1; - byte >>= 1; - - nic_write_bit(mcr, bit); - } -} - -static u64 nic_find(u32 __iomem *mcr, int *last) -{ - int a, b, index, disc; - u64 address = 0; - - nic_reset(mcr); - /* Search ROM. */ - nic_write_byte(mcr, 0xf0); - - /* Algorithm from ``Book of iButton Standards''. */ - for (index = 0, disc = 0; index < 64; index++) { - a = nic_read_bit(mcr); - b = nic_read_bit(mcr); - - if (a && b) { - pr_warn("NIC search failed (not fatal).\n"); - *last = 0; - return 0; - } - - if (!a && !b) { - if (index == *last) { - address |= 1UL << index; - } else if (index > *last) { - address &= ~(1UL << index); - disc = index; - } else if ((address & (1UL << index)) == 0) { - disc = index; - } - nic_write_bit(mcr, address & (1UL << index)); - continue; - } else { - if (a) - address |= 1UL << index; - else - address &= ~(1UL << index); - nic_write_bit(mcr, a); - continue; - } - } - - *last = disc; - - return address; -} - -static int nic_init(u32 __iomem *mcr) -{ - const char *unknown = "unknown"; - const char *type = unknown; - u8 crc; - u8 serial[6]; - int save = 0, i; - - while (1) { - u64 reg; - - reg = nic_find(mcr, &save); - - switch (reg & 0xff) { - case 0x91: - type = "DS1981U"; - break; - default: - if (save == 0) { - /* Let the caller try again. */ - return -1; - } - continue; - } - - nic_reset(mcr); - - /* Match ROM. */ - nic_write_byte(mcr, 0x55); - for (i = 0; i < 8; i++) - nic_write_byte(mcr, (reg >> (i << 3)) & 0xff); - - reg >>= 8; /* Shift out type. */ - for (i = 0; i < 6; i++) { - serial[i] = reg & 0xff; - reg >>= 8; - } - crc = reg & 0xff; - break; - } - - pr_info("Found %s NIC", type); - if (type != unknown) - pr_cont(" registration number %pM, CRC %02x", serial, crc); - pr_cont(".\n"); + /* found nvmem device which is attached to our ioc3 + * now check for one wire family code 09, 89 and 91 + */ + if (memcmp(name + prefix_len, "09-", 3) == 0) + return 1; + if (memcmp(name + prefix_len, "89-", 3) == 0) + return 1; + if (memcmp(name + prefix_len, "91-", 3) == 0) + return 1; return 0; } -/* Read the NIC (Number-In-a-Can) device used to store the MAC address on - * SN0 / SN00 nodeboards and PCI cards. - */ -static void ioc3_get_eaddr_nic(struct ioc3_private *ip) +static int ioc3eth_get_mac_addr(struct resource *res, u8 mac_addr[6]) { - u32 __iomem *mcr = &ip->all_regs->mcr; - int tries = 2; /* There may be some problem with the battery? */ - u8 nic[14]; + struct nvmem_device *nvmem; + char prefix[24]; + u8 prom[16]; + int ret; int i; - writel(1 << 21, &ip->all_regs->gpcr_s); + snprintf(prefix, sizeof(prefix), "ioc3-%012llx-", + res->start & ~0xffff); - while (tries--) { - if (!nic_init(mcr)) - break; - udelay(500); - } - - if (tries < 0) { - pr_err("Failed to read MAC address\n"); - return; - } + nvmem = nvmem_device_find(prefix, ioc3eth_nvmem_match); + if (IS_ERR(nvmem)) + return PTR_ERR(nvmem); - /* Read Memory. */ - nic_write_byte(mcr, 0xf0); - nic_write_byte(mcr, 0x00); - nic_write_byte(mcr, 0x00); + ret = nvmem_device_read(nvmem, 0, 16, prom); + nvmem_device_put(nvmem); + if (ret < 0) + return ret; - for (i = 13; i >= 0; i--) - nic[i] = nic_read_byte(mcr); + /* check, if content is valid */ + if (prom[0] != 0x0a || + crc16(CRC16_INIT, prom, 13) != CRC16_VALID) + return -EINVAL; - for (i = 2; i < 8; i++) - ip->dev->dev_addr[i - 2] = nic[i]; -} - -/* Ok, this is hosed by design. It's necessary to know what machine the - * NIC is in in order to know how to read the NIC address. We also have - * to know if it's a PCI card or a NIC in on the node board ... - */ -static void ioc3_get_eaddr(struct ioc3_private *ip) -{ - ioc3_get_eaddr_nic(ip); + for (i = 0; i < 6; i++) + mac_addr[i] = prom[10 - i]; - pr_info("Ethernet address is %pM.\n", ip->dev->dev_addr); + return 0; } static void __ioc3_set_mac_address(struct net_device *dev) @@ -770,7 +594,7 @@ static int ioc3_mii_init(struct ioc3_private *ip) u16 word; for (i = 0; i < 32; i++) { - word = ioc3_mdio_read(ip->dev, i, MII_PHYSID1); + word = ioc3_mdio_read(ip->mii.dev, i, MII_PHYSID1); if (word != 0xffff && word != 0x0000) { found = 1; @@ -975,12 +799,6 @@ static int ioc3_open(struct net_device *dev) { struct ioc3_private *ip = netdev_priv(dev); - if (request_irq(dev->irq, ioc3_interrupt, IRQF_SHARED, ioc3_str, dev)) { - netdev_err(dev, "Can't get irq %d\n", dev->irq); - - return -EAGAIN; - } - ip->ehar_h = 0; ip->ehar_l = 0; @@ -1013,147 +831,6 @@ static int ioc3_close(struct net_device *dev) return 0; } -/* MENET cards have four IOC3 chips, which are attached to two sets of - * PCI slot resources each: the primary connections are on slots - * 0..3 and the secondaries are on 4..7 - * - * All four ethernets are brought out to connectors; six serial ports - * (a pair from each of the first three IOC3s) are brought out to - * MiniDINs; all other subdevices are left swinging in the wind, leave - * them disabled. - */ - -static int ioc3_adjacent_is_ioc3(struct pci_dev *pdev, int slot) -{ - struct pci_dev *dev = pci_get_slot(pdev->bus, PCI_DEVFN(slot, 0)); - int ret = 0; - - if (dev) { - if (dev->vendor == PCI_VENDOR_ID_SGI && - dev->device == PCI_DEVICE_ID_SGI_IOC3) - ret = 1; - pci_dev_put(dev); - } - - return ret; -} - -static int ioc3_is_menet(struct pci_dev *pdev) -{ - return !pdev->bus->parent && - ioc3_adjacent_is_ioc3(pdev, 0) && - ioc3_adjacent_is_ioc3(pdev, 1) && - ioc3_adjacent_is_ioc3(pdev, 2); -} - -#ifdef CONFIG_SERIAL_8250 -/* Note about serial ports and consoles: - * For console output, everyone uses the IOC3 UARTA (offset 0x178) - * connected to the master node (look in ip27_setup_console() and - * ip27prom_console_write()). - * - * For serial (/dev/ttyS0 etc), we can not have hardcoded serial port - * addresses on a partitioned machine. Since we currently use the ioc3 - * serial ports, we use dynamic serial port discovery that the serial.c - * driver uses for pci/pnp ports (there is an entry for the SGI ioc3 - * boards in pci_boards[]). Unfortunately, UARTA's pio address is greater - * than UARTB's, although UARTA on o200s has traditionally been known as - * port 0. So, we just use one serial port from each ioc3 (since the - * serial driver adds addresses to get to higher ports). - * - * The first one to do a register_console becomes the preferred console - * (if there is no kernel command line console= directive). /dev/console - * (ie 5, 1) is then "aliased" into the device number returned by the - * "device" routine referred to in this console structure - * (ip27prom_console_dev). - * - * Also look in ip27-pci.c:pci_fixup_ioc3() for some comments on working - * around ioc3 oddities in this respect. - * - * The IOC3 serials use a 22MHz clock rate with an additional divider which - * can be programmed in the SCR register if the DLAB bit is set. - * - * Register to interrupt zero because we share the interrupt with - * the serial driver which we don't properly support yet. - * - * Can't use UPF_IOREMAP as the whole of IOC3 resources have already been - * registered. - */ -static void ioc3_8250_register(struct ioc3_uartregs __iomem *uart) -{ -#define COSMISC_CONSTANT 6 - - struct uart_8250_port port = { - .port = { - .irq = 0, - .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF, - .iotype = UPIO_MEM, - .regshift = 0, - .uartclk = (22000000 << 1) / COSMISC_CONSTANT, - - .membase = (unsigned char __iomem *)uart, - .mapbase = (unsigned long)uart, - } - }; - unsigned char lcr; - - lcr = readb(&uart->iu_lcr); - writeb(lcr | UART_LCR_DLAB, &uart->iu_lcr); - writeb(COSMISC_CONSTANT, &uart->iu_scr); - writeb(lcr, &uart->iu_lcr); - readb(&uart->iu_lcr); - serial8250_register_8250_port(&port); -} - -static void ioc3_serial_probe(struct pci_dev *pdev, struct ioc3 *ioc3) -{ - u32 sio_iec; - - /* We need to recognice and treat the fourth MENET serial as it - * does not have an SuperIO chip attached to it, therefore attempting - * to access it will result in bus errors. We call something an - * MENET if PCI slot 0, 1, 2 and 3 of a master PCI bus all have an IOC3 - * in it. This is paranoid but we want to avoid blowing up on a - * showhorn PCI box that happens to have 4 IOC3 cards in it so it's - * not paranoid enough ... - */ - if (ioc3_is_menet(pdev) && PCI_SLOT(pdev->devfn) == 3) - return; - - /* Switch IOC3 to PIO mode. It probably already was but let's be - * paranoid - */ - writel(GPCR_UARTA_MODESEL | GPCR_UARTB_MODESEL, &ioc3->gpcr_s); - readl(&ioc3->gpcr_s); - writel(0, &ioc3->gppr[6]); - readl(&ioc3->gppr[6]); - writel(0, &ioc3->gppr[7]); - readl(&ioc3->gppr[7]); - writel(readl(&ioc3->port_a.sscr) & ~SSCR_DMA_EN, &ioc3->port_a.sscr); - readl(&ioc3->port_a.sscr); - writel(readl(&ioc3->port_b.sscr) & ~SSCR_DMA_EN, &ioc3->port_b.sscr); - readl(&ioc3->port_b.sscr); - /* Disable all SA/B interrupts except for SA/B_INT in SIO_IEC. */ - sio_iec = readl(&ioc3->sio_iec); - sio_iec &= ~(SIO_IR_SA_TX_MT | SIO_IR_SA_RX_FULL | - SIO_IR_SA_RX_HIGH | SIO_IR_SA_RX_TIMER | - SIO_IR_SA_DELTA_DCD | SIO_IR_SA_DELTA_CTS | - SIO_IR_SA_TX_EXPLICIT | SIO_IR_SA_MEMERR); - sio_iec |= SIO_IR_SA_INT; - sio_iec &= ~(SIO_IR_SB_TX_MT | SIO_IR_SB_RX_FULL | - SIO_IR_SB_RX_HIGH | SIO_IR_SB_RX_TIMER | - SIO_IR_SB_DELTA_DCD | SIO_IR_SB_DELTA_CTS | - SIO_IR_SB_TX_EXPLICIT | SIO_IR_SB_MEMERR); - sio_iec |= SIO_IR_SB_INT; - writel(sio_iec, &ioc3->sio_iec); - writel(0, &ioc3->port_a.sscr); - writel(0, &ioc3->port_b.sscr); - - ioc3_8250_register(&ioc3->sregs.uarta); - ioc3_8250_register(&ioc3->sregs.uartb); -} -#endif - static const struct net_device_ops ioc3_netdev_ops = { .ndo_open = ioc3_open, .ndo_stop = ioc3_close, @@ -1166,61 +843,52 @@ static const struct net_device_ops ioc3_netdev_ops = { .ndo_set_mac_address = ioc3_set_mac_address, }; -static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +static int ioc3eth_probe(struct platform_device *pdev) { - unsigned int sw_physid1, sw_physid2; - struct net_device *dev = NULL; + u32 sw_physid1, sw_physid2, vendor, model, rev; struct ioc3_private *ip; - struct ioc3 *ioc3; - unsigned long ioc3_base, ioc3_size; - u32 vendor, model, rev; + struct net_device *dev; + struct resource *regs; + u8 mac_addr[6]; int err; - /* Configure DMA attributes. */ - err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); - if (err) { - pr_err("%s: No usable DMA configuration, aborting.\n", - pci_name(pdev)); - goto out; - } - - if (pci_enable_device(pdev)) - return -ENODEV; + regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); + /* get mac addr from one wire prom */ + if (ioc3eth_get_mac_addr(regs, mac_addr)) + return -EPROBE_DEFER; /* not available yet */ dev = alloc_etherdev(sizeof(struct ioc3_private)); - if (!dev) { - err = -ENOMEM; - goto out_disable; - } - - err = pci_request_regions(pdev, "ioc3"); - if (err) - goto out_free; + if (!dev) + return -ENOMEM; SET_NETDEV_DEV(dev, &pdev->dev); ip = netdev_priv(dev); - ip->dev = dev; - ip->dma_dev = &pdev->dev; - - dev->irq = pdev->irq; + ip->dma_dev = pdev->dev.parent; + ip->regs = devm_platform_ioremap_resource(pdev, 0); + if (!ip->regs) { + err = -ENOMEM; + goto out_free; + } - ioc3_base = pci_resource_start(pdev, 0); - ioc3_size = pci_resource_len(pdev, 0); - ioc3 = (struct ioc3 *)ioremap(ioc3_base, ioc3_size); - if (!ioc3) { - pr_err("ioc3eth(%s): ioremap failed, goodbye.\n", - pci_name(pdev)); + ip->ssram = devm_platform_ioremap_resource(pdev, 1); + if (!ip->ssram) { err = -ENOMEM; - goto out_res; + goto out_free; } - ip->regs = &ioc3->eth; - ip->ssram = ioc3->ssram; - ip->all_regs = ioc3; -#ifdef CONFIG_SERIAL_8250 - ioc3_serial_probe(pdev, ioc3); -#endif + dev->irq = platform_get_irq(pdev, 0); + if (dev->irq < 0) { + err = dev->irq; + goto out_free; + } + + if (devm_request_irq(&pdev->dev, dev->irq, ioc3_interrupt, + IRQF_SHARED, "ioc3-eth", dev)) { + dev_err(&pdev->dev, "Can't get irq %d\n", dev->irq); + err = -ENODEV; + goto out_free; + } spin_lock_init(&ip->ioc3_lock); timer_setup(&ip->ioc3_timer, ioc3_timer, 0); @@ -1250,8 +918,6 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) ioc3_init(dev); - ip->pdev = pdev; - ip->mii.phy_id_mask = 0x1f; ip->mii.reg_num_mask = 0x1f; ip->mii.dev = dev; @@ -1261,15 +927,14 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) ioc3_mii_init(ip); if (ip->mii.phy_id == -1) { - pr_err("ioc3-eth(%s): Didn't find a PHY, goodbye.\n", - pci_name(pdev)); + netdev_err(dev, "Didn't find a PHY, goodbye.\n"); err = -ENODEV; goto out_stop; } ioc3_mii_start(ip); ioc3_ssram_disc(ip); - ioc3_get_eaddr(ip); + memcpy(dev->dev_addr, mac_addr, ETH_ALEN); /* The IOC3-specific entries in the device structure. */ dev->watchdog_timeo = 5 * HZ; @@ -1306,21 +971,14 @@ out_stop: if (ip->tx_ring) dma_free_coherent(ip->dma_dev, TX_RING_SIZE, ip->tx_ring, ip->txr_dma); -out_res: - pci_release_regions(pdev); out_free: free_netdev(dev); -out_disable: - /* We should call pci_disable_device(pdev); here if the IOC3 wasn't - * such a weird device ... - */ -out: return err; } -static void ioc3_remove_one(struct pci_dev *pdev) +static int ioc3eth_remove(struct platform_device *pdev) { - struct net_device *dev = pci_get_drvdata(pdev); + struct net_device *dev = platform_get_drvdata(pdev); struct ioc3_private *ip = netdev_priv(dev); dma_free_coherent(ip->dma_dev, RX_RING_SIZE, ip->rxr, ip->rxr_dma); @@ -1328,27 +986,11 @@ static void ioc3_remove_one(struct pci_dev *pdev) unregister_netdev(dev); del_timer_sync(&ip->ioc3_timer); - - iounmap(ip->all_regs); - pci_release_regions(pdev); free_netdev(dev); - /* We should call pci_disable_device(pdev); here if the IOC3 wasn't - * such a weird device ... - */ -} -static const struct pci_device_id ioc3_pci_tbl[] = { - { PCI_VENDOR_ID_SGI, PCI_DEVICE_ID_SGI_IOC3, PCI_ANY_ID, PCI_ANY_ID }, - { 0 } -}; -MODULE_DEVICE_TABLE(pci, ioc3_pci_tbl); + return 0; +} -static struct pci_driver ioc3_driver = { - .name = "ioc3-eth", - .id_table = ioc3_pci_tbl, - .probe = ioc3_probe, - .remove = ioc3_remove_one, -}; static netdev_tx_t ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev) { @@ -1530,11 +1172,10 @@ static inline unsigned int ioc3_hash(const unsigned char *addr) static void ioc3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { - struct ioc3_private *ip = netdev_priv(dev); - strlcpy(info->driver, IOC3_NAME, sizeof(info->driver)); strlcpy(info->version, IOC3_VERSION, sizeof(info->version)); - strlcpy(info->bus_info, pci_name(ip->pdev), sizeof(info->bus_info)); + strlcpy(info->bus_info, pci_name(to_pci_dev(dev->dev.parent)), + sizeof(info->bus_info)); } static int ioc3_get_link_ksettings(struct net_device *dev, @@ -1646,7 +1287,16 @@ static void ioc3_set_multicast_list(struct net_device *dev) spin_unlock_irq(&ip->ioc3_lock); } -module_pci_driver(ioc3_driver); +static struct platform_driver ioc3eth_driver = { + .probe = ioc3eth_probe, + .remove = ioc3eth_remove, + .driver = { + .name = "ioc3-eth", + } +}; + +module_platform_driver(ioc3eth_driver); + MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>"); MODULE_DESCRIPTION("SGI IOC3 Ethernet driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/rtc/rtc-m48t35.c b/drivers/rtc/rtc-m48t35.c index d3a75d447fce..e8194f1f01a8 100644 --- a/drivers/rtc/rtc-m48t35.c +++ b/drivers/rtc/rtc-m48t35.c @@ -20,6 +20,16 @@ struct m48t35_rtc { u8 pad[0x7ff8]; /* starts at 0x7ff8 */ +#ifdef CONFIG_SGI_IP27 + u8 hour; + u8 min; + u8 sec; + u8 control; + u8 year; + u8 month; + u8 date; + u8 day; +#else u8 control; u8 sec; u8 min; @@ -28,6 +38,7 @@ struct m48t35_rtc { u8 date; u8 month; u8 year; +#endif }; #define M48T35_RTC_SET 0x80 diff --git a/drivers/soc/lantiq/fpi-bus.c b/drivers/soc/lantiq/fpi-bus.c index cb0303a0fe60..dff1375851cf 100644 --- a/drivers/soc/lantiq/fpi-bus.c +++ b/drivers/soc/lantiq/fpi-bus.c @@ -28,14 +28,12 @@ static int ltq_fpi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; - struct resource *res_xbar; struct regmap *rcu_regmap; void __iomem *xbar_membase; u32 rcu_ahb_endianness_reg_offset; int ret; - res_xbar = platform_get_resource(pdev, IORESOURCE_MEM, 0); - xbar_membase = devm_ioremap_resource(dev, res_xbar); + xbar_membase = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(xbar_membase)) return PTR_ERR(xbar_membase); diff --git a/drivers/tc/tc-driver.c b/drivers/tc/tc-driver.c index 16b5bae63c74..d45f2c1ff341 100644 --- a/drivers/tc/tc-driver.c +++ b/drivers/tc/tc-driver.c @@ -56,8 +56,8 @@ EXPORT_SYMBOL(tc_unregister_driver); * system is in its list of supported devices. Returns the matching * tc_device_id structure or %NULL if there is no match. */ -const struct tc_device_id *tc_match_device(struct tc_driver *tdrv, - struct tc_dev *tdev) +static const struct tc_device_id *tc_match_device(struct tc_driver *tdrv, + struct tc_dev *tdev) { const struct tc_device_id *id = tdrv->id_table; @@ -71,7 +71,6 @@ const struct tc_device_id *tc_match_device(struct tc_driver *tdrv, } return NULL; } -EXPORT_SYMBOL(tc_match_device); /** * tc_bus_match - Tell if a device structure has a matching diff --git a/drivers/tty/serial/8250/8250_ioc3.c b/drivers/tty/serial/8250/8250_ioc3.c new file mode 100644 index 000000000000..4c405f1b9c67 --- /dev/null +++ b/drivers/tty/serial/8250/8250_ioc3.c @@ -0,0 +1,98 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * SGI IOC3 8250 UART driver + * + * Copyright (C) 2019 Thomas Bogendoerfer <tbogendoerfer@suse.de> + * + * based on code Copyright (C) 2005 Stanislaw Skowronek <skylark@unaligned.org> + * Copyright (C) 2014 Joshua Kinard <kumba@gentoo.org> + */ + +#include <linux/module.h> +#include <linux/errno.h> +#include <linux/io.h> +#include <linux/platform_device.h> + +#include "8250.h" + +#define IOC3_UARTCLK (22000000 / 3) + +struct ioc3_8250_data { + int line; +}; + +static unsigned int ioc3_serial_in(struct uart_port *p, int offset) +{ + return readb(p->membase + (offset ^ 3)); +} + +static void ioc3_serial_out(struct uart_port *p, int offset, int value) +{ + writeb(value, p->membase + (offset ^ 3)); +} + +static int serial8250_ioc3_probe(struct platform_device *pdev) +{ + struct ioc3_8250_data *data; + struct uart_8250_port up; + struct resource *r; + void __iomem *membase; + int irq, line; + + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!r) + return -ENODEV; + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + membase = devm_ioremap_nocache(&pdev->dev, r->start, resource_size(r)); + if (!membase) + return -ENOMEM; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) + irq = 0; /* no interrupt -> use polling */ + + /* Register serial ports with 8250.c */ + memset(&up, 0, sizeof(struct uart_8250_port)); + up.port.iotype = UPIO_MEM; + up.port.uartclk = IOC3_UARTCLK; + up.port.type = PORT_16550A; + up.port.irq = irq; + up.port.flags = (UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ); + up.port.dev = &pdev->dev; + up.port.membase = membase; + up.port.mapbase = r->start; + up.port.serial_in = ioc3_serial_in; + up.port.serial_out = ioc3_serial_out; + line = serial8250_register_8250_port(&up); + if (line < 0) + return line; + + platform_set_drvdata(pdev, data); + return 0; +} + +static int serial8250_ioc3_remove(struct platform_device *pdev) +{ + struct ioc3_8250_data *data = platform_get_drvdata(pdev); + + serial8250_unregister_port(data->line); + return 0; +} + +static struct platform_driver serial8250_ioc3_driver = { + .probe = serial8250_ioc3_probe, + .remove = serial8250_ioc3_remove, + .driver = { + .name = "ioc3-serial8250", + } +}; + +module_platform_driver(serial8250_ioc3_driver); + +MODULE_AUTHOR("Thomas Bogendoerfer <tbogendoerfer@suse.de>"); +MODULE_DESCRIPTION("SGI IOC3 8250 UART driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index ffd167e886ae..f16824bbb573 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -381,6 +381,17 @@ config SERIAL_8250_EM port hardware found on the Emma Mobile line of processors. If unsure, say N. +config SERIAL_8250_IOC3 + tristate "SGI IOC3 8250 UART support" + depends on SGI_MFD_IOC3 && SERIAL_8250 + select SERIAL_8250_EXTENDED + select SERIAL_8250_SHARE_IRQ + help + Enable this if you have a SGI Origin or Octane machine. This module + provides basic serial support by directly driving the UART chip + behind the IOC3 device on those systems. Maximum baud speed is + 38400bps using this driver. + config SERIAL_8250_RT288X bool "Ralink RT288x/RT305x/RT3662/RT3883 serial port support" depends on SERIAL_8250 diff --git a/drivers/tty/serial/8250/Makefile b/drivers/tty/serial/8250/Makefile index 08c1d8117506..51a6079d3f1f 100644 --- a/drivers/tty/serial/8250/Makefile +++ b/drivers/tty/serial/8250/Makefile @@ -28,6 +28,7 @@ obj-$(CONFIG_SERIAL_8250_FSL) += 8250_fsl.o obj-$(CONFIG_SERIAL_8250_MEN_MCB) += 8250_men_mcb.o obj-$(CONFIG_SERIAL_8250_DW) += 8250_dw.o obj-$(CONFIG_SERIAL_8250_EM) += 8250_em.o +obj-$(CONFIG_SERIAL_8250_IOC3) += 8250_ioc3.o obj-$(CONFIG_SERIAL_8250_OMAP) += 8250_omap.o obj-$(CONFIG_SERIAL_8250_LPC18XX) += 8250_lpc18xx.o obj-$(CONFIG_SERIAL_8250_MT6577) += 8250_mtk.o |