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2020-12-01platform: Remove dummy system reset functionsAnup Patel1-7/+0
Few platforms have dummy system reset functions so let's remove these dummy system reset functions to allow generic code deal with it in the right way. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-06-29config.mk: Update QEMU run command for generic and sifive fu540 platformsBin Meng1-1/+1
Since QEMU v5.1, if there is no "-bios" option provided, the default OpenSBI firmware will be loaded by QEMU as the BIOS automatically, hence to load fw_payload type image, we should explicitly pass the "-bios" option to QEMU. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-06-15platform/lib: Allow the OS to map the regions that are protected by PMPAlexandre Ghiti1-0/+7
This is achieved by removing the 'no-map' property from the 'reserved-memory' node when PMP is present, otherwise we keep it as it offers a small protection if the OS does not map this region at all. A new callback in platform_override is introduced and allows to fixup the device-tree. It is used here to override this new default behaviour on SiFive Fu540 platforms that has an erratum that prevents S-mode software to access a PMP protected region using 1GB page table mapping. If PMP is present, telling the OS not to map the reserved regions does not add much protection since it only avoids access to regions that are already protected by PMP. But by not allowing the OS to map those regions, it creates holes in the OS system memory map and prevents the use of hugepages which would generate, among other benefits, less TLB miss. Signed-off-by: Alexandre Ghiti <alex@ghiti.fr> Reviewed-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2020-05-23lib: utils: Allow CLINT functions to be used for multiple CLINTsAnup Patel1-3/+9
We extend CLINT cold init function to have a "struct clint_data *" parameter pointing to CLINT details. This allows platforms to use CLINT functions for multiple CLINT instances. When multiple CLINTs are present, the platform can also provide one of the CLINT as reference CLINT for other CLINTs. This will help CLINTs to sync their time value with reference CLINT using a time_delta computed in warm init function. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-05-23lib: utils: Allow PLIC functions to be used for multiple PLICsAnup Patel1-3/+7
We extend all PLIC functions to have a "struct plic_data *" parameter pointing to PLIC details. This allows platforms to use these functions for multiple PLIC instances. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-05-23lib: utils: Remove redundant parameters from PLIC init functionsAnup Patel1-3/+2
The "target_hart" and "hart_count" parameters of PLIC cold and warm init functions are only used for sanity checks and not required in PLIC initialization. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-04-27include: sbi_platform: Combine reboot and shutdown into one callbackAnup Patel1-3/+2
We can achieve shutdown, cold reboot, and warm reboot using just one sbi_platform callback so we combine system_reboot() and system_shutdown() callbacks into one system_reset() callback. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-04-27lib: No need to provide default PMP region using platform callbacksAnup Patel1-26/+0
The default (usually last) PMP region provides S-mode access to complete memory range not covered by other PMP regions. Currently, the default PMP region is described as platform specific PMP region which is not appropriate because all platforms need it and default PMP region should be part of generic library. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-03-24lib: utils: Move fdt fixup helper routines to a different fileAtish Patra1-1/+1
FDT helper file contain both fdt fixup and parsing functions. Split the fixup related functions to a separate file for a better code organization. Signed-off-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2020-03-19platform: sifive/fu540: Remove FU540_ENABLED_HART_MASK optionAnup Patel2-13/+0
The FU540_ENABLED_HART_MASK compile time option was added for initial bring-up on SiFive Unleashed. This option is redundant now because disabled_hart_mask is already removed. Based on this rationale, we remove FU540_ENABLED_HART_MASK compile time option. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-03-19include: sbi_platform: Introduce HART index to HART id tableAnup Patel1-6/+8
A platform can have discontinuous and/or sparse HART ids so we cannot always assume a set of HARTs with continuous HART ids. This patch adds support for discontinuous and sparse HART ids by introducing HART index to HART id table. This table has platform hart_count entries and it maps HART index to HART id. The HART index to HART id table has only two restrictions: 1. HART index < sbi_platform hart_count 2. HART id < SBI_HARTMASK_MAX_BITS Example1: Let's say we have a platform with 2 HART ids 11 and 22, for such a a platform: hart_count = 2 hart_index2id[0] = 11 hart_index2id[1] = 22 Example2: Let's say we have a platform with 5 HARTs ids 0, 1, 2, 3, and 4 but out of these HART with id 0 is not usable so for such a platform: hart_count = 5 hart_index2id[0] = -1U hart_index2id[1] = 1 hart_index2id[2] = 2 hart_index2id[3] = 3 hart_index2id[4] = 4 OR hart_count = 4 hart_index2id[0] = 1 hart_index2id[1] = 2 hart_index2id[2] = 3 hart_index2id[3] = 4 With HART index to HART id table in place, the hart_disabled() callback is now redundant so we remove it as well. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-03-18platform: Update to call general DT fix-up helperBin Meng1-3/+1
Platform andes/ae350, ariane-fpga, qemu/virt and sifive/fu540 codes have been updated to call this general DT fix-up helper. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2020-03-18platform: sifive/fu540: Replace cpu0 node fix-up with the new helperBin Meng1-25/+1
This replaces the FU540 specific cpu0 node "status" property fix-up with the newly introduced generic fdt_cpu_fixup() helper. Unlike previous logic, the helper routine does not test the "mmu-type" property to determine which node we should fix up, instead it uses sbi_platform_hart_disabled() API. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2020-03-18platform: sifive/fu540: Remove "stdout-path" fix-upBin Meng1-5/+1
As of today the upstream U-Boot & Linux kernel ships a device tree that already has "stdout-path" properly set in the "/chosen" node. This is the same with the QEMU 'sifive_u' machine. Hence the codes to fix up the "stdout-path" in OpenSBI is not necessary. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-03-18platform: sifive/fu540: Fix up DT for reserved memoryBin Meng1-0/+2
This calls fdt_reserved_memory_fixup() helper in the platform's final_init() routine. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-03-18lib: utils: Move PLIC DT fix up codes to fdt_helper.cBin Meng1-1/+2
Now that we have a dedicated fdt_helper.c file for DT releated helper routines, move plic_fdt_fixup() codes from plic.c to fdt_helper.c and rename it to fdt_plic_fixup() at the same time, to keep name consistency in the same file. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-03-18platform: Clean up include header filesBin Meng1-2/+1
Adjust the order of include header files in alphabetical order in platform codes. Also remove unnecessary inclusions. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-03-14platform: Use one unified per-HART stack size macro for all platformsBin Meng1-2/+1
As of today all platforms use 8KB of per-HART stack hence there is no need for each platform to define its own macro or use the magic number. Create one macro for all platforms. Platform still can use its own version if needed. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2020-03-13include: Make sbi_current_hartid() as macro in riscv_asm.hAnup Patel1-3/+3
The sbi_current_hartid() being a regular function is quite expensive because for callers it is a function call instead of a direct CSR read. This patch converts sbi_current_hartid() into a macro in riscv_asm.h. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-03-11include: Remove disabled_hart_mask from sbi_platformAnup Patel1-1/+6
The disabled_hard_mask in sbi_platform is only 64bits wide so we cannot disable a HART with HARTID > 63. To tackle this, we remove disabled_hart_mask and replace it with hart_disabled() platform callback. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-03-08platform: sifive: fu540: allow sv32 as an mmu-typeSören Tempel1-1/+2
There has already been a commit to master which added 32-bit specific fdt/payload addresses for the sifive/fu540 platform [0]. This commit introduces another change for using sifive/fu540 as a 32-bit platform. On 32-bit platforms, cores with the SV32 MMU type should not be disabled. For this reason, this commit also allows using this MMU type on the sifive/fu540 platform. Alternatively it would also be possible to only allow SV39 and SV48 if `__riscv_xlen == 64` and SV32 if `__riscv_xlen == 32`. Removing the check entirely would also be an option. [0]: 66fb729a1e46a9a46e809f3b7867fef91477e494 Signed-off-by: Sören Tempel <tempel@uni-bremen.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2020-02-19platform: sifive: fu540: Add 32-bit specific fdt/payload addressesBin Meng1-2/+14
For testing 32-bit SiFive specific drivers with QEMU riscv32, add 32-bit specific FW_JUMP_FDT_ADDR and FW_PAYLOAD_OFFSET. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2020-02-07platform: sifive: fu540: Add platform specific 'make run' cmdBin Meng1-0/+4
This adds sifive/fu540 specific QEMU run command. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2020-02-05platform: sifive/fu540: Set tlb range flush limit to zeroAtish Patra1-0/+9
It was reported that tlb range flush is not working on fu540. Only tlb full flush seems to work on fu540 probably due to some hardware errata. Set the tlb flush limit to zero so that all tlb flush requests are converted to full flush. Signed-off-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2020-01-02lib: utils: Support CLINT with 32bit MMIO access on RV64 systemAnup Patel1-1/+2
It is possible to have a CLINT implementation which supports only 32bit MMIO accesses on RV64 system so this patch extends our CLINT driver such that platform code can specify whether CLINT supports 64bit MMIO access. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra<atish.patra@wdc.com> Reviewed-by: Zong Li <zong.li@sifive.com>
2019-08-16platform: Remove the ipi_sync method from all platforms.Atish Patra1-1/+0
OpenSBI manages outstanding TLB flush requests by queueing them in a fifo synchronously. An ipi sync which uses an atomic operation on MMIO address is no longer required. Remove the ipi sync method from platform header and all usage. Signed-off-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-09platform: sifive: fu540: Expand FDT size before any patchingBin Meng1-5/+6
We should expand the FDT size before any patching, otherwise it's possible the "status" fix up might fail due to insufficient space. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-07-24platform: sifive/fu540: Move FDT further upAnup Patel1-2/+2
This patch changes FW_xyz_FDT_ADDR to RAM_START+128MB (i.e. 0x88000000) so that next stage bootloader (i.e. U-Boot) has enough space to unpack bigger kernel images. Reported-by: David Abdurachmanov <david.abdurachmanov@sifive.com> Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: David Abdurachmanov <david.abdurachmanov@sifive.com> Tested-by: David Abdurachmanov <david.abdurachmanov@sifive.com>
2019-07-22platform: sifive: fu540: Use standard value string for cpu node statusBin Meng1-1/+2
Per device tree spec, the standard value string for the "status" property of a cpu node is either "okay" or "disabled". "masked" was once used but it is unfortunately a spec violation. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Anup Patel <anup.patel@wdc.com>
2019-07-02platform: Remove the HiFive Unleashed expansion board DT.Atish Patra1-588/+0
The Linux kernel will maintain the device tree (DT) for HiFive Unleashed from release v5.2-rc6. This DT is incompatible with previous DT present for Microsemi expansion board in OpenSBI. Since, OpenSBI will directly load the pre-built DTB from kernel now onwards, no need to keep the out-of-date DT in openSBI. Remove this DT and it's related documentation. Signed-off-by: Atish Patra <atish.patra@wdc.com> Acked-by: Anup Patel <anup.patel@wdc.com>
2019-06-29include: Add version info to struct sbi_platformAbner Chang1-0/+2
Add version control of sbi_platform structure - Add opensbi_version, this gives information of opensbi revision on which the sbi_platform table was created. - Add platform_version field in sbi_platform structure for platform level version control. Signed-off-by: Abner Chang <abner.chang@hpe.com> Acked-by: Anup Patel <anup.patel@wdc.com>
2019-06-29include: Move callbacks in sbi_platform to separate structAbner Chang1-22/+26
Move platform opensbi functions to sbi_platform_operations structure. Both sbi_platform and sbi_platform_operations structures are maintained by platform vendors. Signed-off-by: Abner Chang <abner.chang@hpe.com> Acked-by: Anup Patel <anup.patel@wdc.com>
2019-06-19platform: Enable all drivers by default.Atish Patra1-9/+0
The drivers and libfdt are built as libsbiutils.a instead of libplatsbi.a. libsbiutils.a are not built per platform specific. Thus, enable all drivers by default. Signed-off-by: Atish Patra <atish.patra@wdc.com> Acked-by: Anup Patel <anup.patel@wdc.com>
2019-06-19platform: Move platform common to lib/utils.Atish Patra1-3/+3
Currently, platform/common contains platform/non-platform specific common minimal drivers and libraries. This is helpful is all platforms are built within opensbi framework. Move them to lib/utils so that any external platform code also can reuse the minimalistic drivers or other common libraries. This patch doesn't introduce any functional changes. Signed-off-by: Atish Patra <atish.patra@wdc.com> Acked-by: Anup Patel <anup.patel@wdc.com>
2019-05-10platform: Enable dynamic firmware for appropriate platformsAnup Patel1-0/+1
This patch enables FW_DYNAMIC option (i.e. dynamic firmware) for all appropriate/applicable platforms. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2019-04-24all: run clang-format and update checked-in filesOlof Johansson1-40/+37
Noisy commit, no functional changes. Generated with an current upstream clang-format and: clang-format -i $(find . -name \*.[ch]) Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-24all: Annotate some tables to have clang-format leave them aloneOlof Johansson1-0/+4
One of the shortcomings of clang-format is that it doesn't allow for aligned define tables, which is used for a number of constants. Add annotation to disable the automatic formatting where needed. Signed-off-by: Olof Johansson <olof@lixom.net>
2019-03-13platform: fu540: Fix cosmetic styling issuesBin Meng1-3/+3
There are some spaces or mixed usage of spaces and tabs in the macro definition. Change to use tab consistently. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-03-06platform: Make the `platform` read-onlyXiang Wang1-1/+1
platform should be a read-only variable, if it is placed in the data segment, it may be exploited. Signed-off-by: Xiang Wang <wxjstz@126.com>
2019-02-15platform: fu540: Initial commit of Microsemi device treeAlistair Francis1-0/+588
Add a device tree for th HiFive Unleashed that includes the Microsemi PCIe root complex. Once we have support for u-boot and in tree Linux kernel device trees this device tree should be removed. Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2019-02-15platform: fu540: Fix missing newlineAlistair Francis1-0/+1
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2019-02-12Makefile: Set ABI, ISA and Code Model in top-level makeAnup Patel1-2/+2
This patch introduces following optional PLATFORM options: PLATFORM_RISCV_XLEN -> RISC-V register width PLATFORM_RISCV_ABI -> RISC-V GCC ABI PLATFORM_RISCV_ISA -> RISC-V GCC ISA string PLATFORM_RISCV_CODE_MODEL -> RISC-V GCC Code Model If the above options are not provided by platform config.mk or by command-line parameters then: 1. PLATFORM_RISCV_XLEN will be determined using toolchain capability 2. PLATFORM_RISCV_ABI, PLATFORM_RISCV_ISA, and PLATFORM_RISCV_CODE_MODEL is set to value best suited for generic libsbi.a As a result of these optional PLATFORM options, the platform-cflags-y and platform-asflags-y is further simplified for platform config.mk. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-29platform: fu540: Provide a compile time option selective hart booting.Atish Patra2-2/+13
Currently, only hart 1 is enabled for fu540 platform to support U-boot. Introduce a compile time FU540_ENABLED_HART_MASK option so that specific harts can be selected for booting. As fu540 is a multicore, we should boot all cores by default except hart 0. Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-01-24all: Update copyright header in all filesAnup patel3-9/+9
This patch updates copyright header in all files as follows: 1. Makes "SPDX-License-Identifier: BSD-2-Clause" as first line 2. Change copyright year to 2019 for Western Digital Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-23include: Rename ipi_inject() to ipi_send() for sbi_platformAnup Patel1-1/+1
For better naming, we rename ipi_inject() to ipi_send() in struct sbi_platform. We also replace term "inject" with "send" in all related places. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-23lib: Remove target_hart and hartid parameter from TIMER callbacksAnup Patel1-2/+2
The target_hart and hartid paramter of TIMER callbacks is not required because it always current hartid which can be obtained using sbi_current_hartid() API. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-23lib: Remove hartid parameter from IRQCHIP callbacksAnup Patel1-1/+3
The hartid parameter in IRQCHIP callbacks of sbi_platform is not required because current hartid can be determined using sbi_current_hartid() API. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-23lib: Remove source_hart and hartid parameter from IPI callbacksAnup patel1-2/+2
The source_hart and hartid parameter is really not required in IPI callbacks of sbi_platform because current hartid can always be obtained by calling sbi_current_hartid() API. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-23lib: Remove hartid paramter from early_init() and final_init() callbacksAnup Patel1-1/+1
We simplify early_init() and final_init() callbacks of sbi_platform by removing "hartid" parameter. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-18platform: No need to pass context id for plic fixup.Atish Patra1-4/+1
PLIC DT entry fixup can be done by comparing external interrupt number instead of context id. No need to invoke fixup for each plic context. Signed-off-by: Atish Patra <atish.patra@wdc.com>
generated by cgit v1.2.3 (git 2.39.0) at 2026-09-15 00:03:17 +0300