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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-03-31 18:49:26 +0300 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-03-31 18:49:26 +0300 |
commit | 58233ccf94607c1df2c545b689c52c0b002f054e (patch) | |
tree | 3ecaec3f0904c2ea841e6d3f86d586176986cd22 /arch | |
parent | 458ef2a25e0cbdc216012aa2b9cf549d64133b08 (diff) | |
parent | 86cded5fc52567774b596827544874499532b8ae (diff) | |
download | linux-58233ccf94607c1df2c545b689c52c0b002f054e.tar.xz |
Merge tag 'm68k-for-v5.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven:
- pagetable layout rewrite, to facilitate global READ_ONCE() rework
- Zorro (Amiga) and DIO (HP 9000/300) bus cleanups
- defconfig updates
- minor cleanups and fixes
* tag 'm68k-for-v5.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (23 commits)
m68k: defconfig: Update defconfigs for v5.6-rc4
zorro: Replace zero-length array with flexible-array member
m68k: Switch to asm-generic/hardirq.h
fbdev: c2p: Use BUILD_BUG() instead of custom solution
dio: Remove unused dio_dev_driver()
dio: Fix dio_bus_match() kerneldoc
dio: Make dio_match_device() static
zorro: Move zorro_bus_type to bus-private header file
zorro: Remove unused zorro_dev_driver()
zorro: Use zorro_match_device() helper in zorro_bus_match()
zorro: Fix zorro_bus_match() kerneldoc
zorro: Make zorro_match_device() static
m68k: Fix Kconfig indentation
m68k: mm: Change ColdFire pgtable_t
m68k: mm: Fully initialize the page-table allocator
m68k: mm: Extend table allocator for multiple sizes
m68k: mm: Use table allocator for pgtables
m68k: mm: Improve kernel_page_table()
m68k: mm: Restructure Motorola MMU page-table layout
m68k: mm: Move the pointer table allocator to motorola.c
...
Diffstat (limited to 'arch')
26 files changed, 328 insertions, 356 deletions
diff --git a/arch/m68k/Kconfig.bus b/arch/m68k/Kconfig.bus index 9d0a3a23d50e..f1be832e2b74 100644 --- a/arch/m68k/Kconfig.bus +++ b/arch/m68k/Kconfig.bus @@ -66,6 +66,6 @@ endif if !MMU config ISA_DMA_API - def_bool !M5272 + def_bool !M5272 endif diff --git a/arch/m68k/Kconfig.debug b/arch/m68k/Kconfig.debug index f43643111eaf..11b306bdd788 100644 --- a/arch/m68k/Kconfig.debug +++ b/arch/m68k/Kconfig.debug @@ -12,16 +12,16 @@ config EARLY_PRINTK bool "Early printk" depends on !(SUN3 || M68000 || COLDFIRE) help - Write kernel log output directly to a serial port. - Where implemented, output goes to the framebuffer as well. - PROM console functionality on Sun 3x is not affected by this option. + Write kernel log output directly to a serial port. + Where implemented, output goes to the framebuffer as well. + PROM console functionality on Sun 3x is not affected by this option. - Pass "earlyprintk" on the kernel command line to get a - boot console. + Pass "earlyprintk" on the kernel command line to get a + boot console. - This is useful for kernel debugging when your machine crashes very - early, i.e. before the normal console driver is loaded. - You should normally say N here, unless you want to debug such a crash. + This is useful for kernel debugging when your machine crashes very + early, i.e. before the normal console driver is loaded. + You should normally say N here, unless you want to debug such a crash. if !MMU diff --git a/arch/m68k/Kconfig.machine b/arch/m68k/Kconfig.machine index c01e103492fd..b23a66bac77f 100644 --- a/arch/m68k/Kconfig.machine +++ b/arch/m68k/Kconfig.machine @@ -269,10 +269,10 @@ config AMCORE Support for the Sysam AMCORE open-hardware generic board. config STMARK2 - bool "Sysam stmark2 board support" - depends on M5441x - help - Support for the Sysam stmark2 open-hardware generic board. + bool "Sysam stmark2 board support" + depends on M5441x + help + Support for the Sysam stmark2 open-hardware generic board. config FIREBEE bool "FireBee board support" diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig index e1134c3e0b69..9818d0ed143e 100644 --- a/arch/m68k/configs/amiga_defconfig +++ b/arch/m68k/configs/amiga_defconfig @@ -173,7 +173,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -369,6 +368,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -613,9 +613,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig index 484cb1643df1..db2402c75300 100644 --- a/arch/m68k/configs/apollo_defconfig +++ b/arch/m68k/configs/apollo_defconfig @@ -169,7 +169,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -348,6 +347,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -569,9 +569,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig index eb6a46b6d135..07a28b48eb43 100644 --- a/arch/m68k/configs/atari_defconfig +++ b/arch/m68k/configs/atari_defconfig @@ -176,7 +176,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -364,6 +363,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -591,9 +591,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig index bee9263a409c..033589367cb1 100644 --- a/arch/m68k/configs/bvme6000_defconfig +++ b/arch/m68k/configs/bvme6000_defconfig @@ -166,7 +166,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -346,6 +345,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -562,9 +562,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig index c8847a8bcbd6..ee4d02a90214 100644 --- a/arch/m68k/configs/hp300_defconfig +++ b/arch/m68k/configs/hp300_defconfig @@ -168,7 +168,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -347,6 +346,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -571,9 +571,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig index 303ffafd9cad..442eed608ebc 100644 --- a/arch/m68k/configs/mac_defconfig +++ b/arch/m68k/configs/mac_defconfig @@ -167,7 +167,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -363,6 +362,7 @@ CONFIG_INPUT_ADBHID=y CONFIG_MAC_EMUMOUSEBTN=y CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -593,9 +593,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig index 89a704226cd9..1de7da7c1041 100644 --- a/arch/m68k/configs/multi_defconfig +++ b/arch/m68k/configs/multi_defconfig @@ -187,7 +187,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -407,6 +406,7 @@ CONFIG_INPUT_ADBHID=y CONFIG_MAC_EMUMOUSEBTN=y CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -679,9 +679,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig index f62c1f4d03a0..ced341e047db 100644 --- a/arch/m68k/configs/mvme147_defconfig +++ b/arch/m68k/configs/mvme147_defconfig @@ -165,7 +165,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -345,6 +344,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -561,9 +561,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig index 58dcad26a751..006188f1f063 100644 --- a/arch/m68k/configs/mvme16x_defconfig +++ b/arch/m68k/configs/mvme16x_defconfig @@ -166,7 +166,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -346,6 +345,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -562,9 +562,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig index 5d3c28d1d545..c65d985ee642 100644 --- a/arch/m68k/configs/q40_defconfig +++ b/arch/m68k/configs/q40_defconfig @@ -167,7 +167,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -353,6 +352,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -580,9 +580,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig index 5ef9e17dcd51..32905fe56cd7 100644 --- a/arch/m68k/configs/sun3_defconfig +++ b/arch/m68k/configs/sun3_defconfig @@ -163,7 +163,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -343,6 +342,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -564,9 +564,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig index 22e1accc60a3..32b0969668fe 100644 --- a/arch/m68k/configs/sun3x_defconfig +++ b/arch/m68k/configs/sun3x_defconfig @@ -163,7 +163,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -343,6 +342,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -563,9 +563,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild index 591d53b763b7..63f12afc4874 100644 --- a/arch/m68k/include/asm/Kbuild +++ b/arch/m68k/include/asm/Kbuild @@ -8,6 +8,7 @@ generic-y += emergency-restart.h generic-y += exec.h generic-y += extable.h generic-y += futex.h +generic-y += hardirq.h generic-y += hw_irq.h generic-y += irq_regs.h generic-y += irq_work.h diff --git a/arch/m68k/include/asm/hardirq.h b/arch/m68k/include/asm/hardirq.h deleted file mode 100644 index 11793165445d..000000000000 --- a/arch/m68k/include/asm/hardirq.h +++ /dev/null @@ -1,29 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __M68K_HARDIRQ_H -#define __M68K_HARDIRQ_H - -#include <linux/threads.h> -#include <linux/cache.h> -#include <asm/irq.h> - -#ifdef CONFIG_MMU - -static inline void ack_bad_irq(unsigned int irq) -{ - pr_crit("unexpected IRQ trap at vector %02x\n", irq); -} - -/* entry.S is sensitive to the offsets of these fields */ -typedef struct { - unsigned int __softirq_pending; -} ____cacheline_aligned irq_cpustat_t; - -#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */ - -#else - -#include <asm-generic/hardirq.h> - -#endif /* !CONFIG_MMU */ - -#endif diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h index 82ec54c2eaa4..bc1228e00518 100644 --- a/arch/m68k/include/asm/mcf_pgalloc.h +++ b/arch/m68k/include/asm/mcf_pgalloc.h @@ -28,21 +28,22 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address) return (pmd_t *) pgd; } -#define pmd_populate(mm, pmd, page) (pmd_val(*pmd) = \ - (unsigned long)(page_address(page))) +#define pmd_populate(mm, pmd, pte) (pmd_val(*pmd) = (unsigned long)(pte)) -#define pmd_populate_kernel(mm, pmd, pte) (pmd_val(*pmd) = (unsigned long)(pte)) +#define pmd_populate_kernel pmd_populate -#define pmd_pgtable(pmd) pmd_page(pmd) +#define pmd_pgtable(pmd) pfn_to_virt(pmd_val(pmd) >> PAGE_SHIFT) -static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page, +static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable, unsigned long address) { + struct page *page = virt_to_page(pgtable); + pgtable_pte_page_dtor(page); __free_page(page); } -static inline struct page *pte_alloc_one(struct mm_struct *mm) +static inline pgtable_t pte_alloc_one(struct mm_struct *mm) { struct page *page = alloc_pages(GFP_DMA, 0); pte_t *pte; @@ -54,20 +55,16 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm) return NULL; } - pte = kmap(page); - if (pte) { - clear_page(pte); - __flush_page_to_ram(pte); - flush_tlb_kernel_page(pte); - nocache_page(pte); - } - kunmap(page); + pte = page_address(page); + clear_page(pte); - return page; + return pte; } -static inline void pte_free(struct mm_struct *mm, struct page *page) +static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) { + struct page *page = virt_to_page(pgtable); + pgtable_pte_page_dtor(page); __free_page(page); } @@ -90,7 +87,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) new_pgd = (pgd_t *)__get_free_page(GFP_DMA | __GFP_NOWARN); if (!new_pgd) return NULL; - memcpy(new_pgd, swapper_pg_dir, PAGE_SIZE); + memcpy(new_pgd, swapper_pg_dir, PTRS_PER_PGD * sizeof(pgd_t)); memset(new_pgd, 0, PAGE_OFFSET >> PGDIR_SHIFT); return new_pgd; } diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h index ff9cc401ffd1..c66e42917912 100644 --- a/arch/m68k/include/asm/motorola_pgalloc.h +++ b/arch/m68k/include/asm/motorola_pgalloc.h @@ -5,93 +5,71 @@ #include <asm/tlb.h> #include <asm/tlbflush.h> -extern pmd_t *get_pointer_table(void); -extern int free_pointer_table(pmd_t *); +extern void mmu_page_ctor(void *page); +extern void mmu_page_dtor(void *page); -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) -{ - pte_t *pte; +enum m68k_table_types { + TABLE_PGD = 0, + TABLE_PMD = 0, /* same size as PGD */ + TABLE_PTE = 1, +}; - pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO); - if (pte) { - __flush_page_to_ram(pte); - flush_tlb_kernel_page(pte); - nocache_page(pte); - } +extern void init_pointer_table(void *table, int type); +extern void *get_pointer_table(int type); +extern int free_pointer_table(void *table, int type); - return pte; +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) +{ + return get_pointer_table(TABLE_PTE); } static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) { - cache_page(pte); - free_page((unsigned long) pte); + free_pointer_table(pte, TABLE_PTE); } static inline pgtable_t pte_alloc_one(struct mm_struct *mm) { - struct page *page; - pte_t *pte; - - page = alloc_pages(GFP_KERNEL|__GFP_ZERO, 0); - if(!page) - return NULL; - if (!pgtable_pte_page_ctor(page)) { - __free_page(page); - return NULL; - } - - pte = kmap(page); - __flush_page_to_ram(pte); - flush_tlb_kernel_page(pte); - nocache_page(pte); - kunmap(page); - return page; + return get_pointer_table(TABLE_PTE); } -static inline void pte_free(struct mm_struct *mm, pgtable_t page) +static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) { - pgtable_pte_page_dtor(page); - cache_page(kmap(page)); - kunmap(page); - __free_page(page); + free_pointer_table(pgtable, TABLE_PTE); } -static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page, +static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable, unsigned long address) { - pgtable_pte_page_dtor(page); - cache_page(kmap(page)); - kunmap(page); - __free_page(page); + free_pointer_table(pgtable, TABLE_PTE); } static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) { - return get_pointer_table(); + return get_pointer_table(TABLE_PMD); } static inline int pmd_free(struct mm_struct *mm, pmd_t *pmd) { - return free_pointer_table(pmd); + return free_pointer_table(pmd, TABLE_PMD); } static inline int __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, unsigned long address) { - return free_pointer_table(pmd); + return free_pointer_table(pmd, TABLE_PMD); } static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { - pmd_free(mm, (pmd_t *)pgd); + free_pointer_table(pgd, TABLE_PGD); } static inline pgd_t *pgd_alloc(struct mm_struct *mm) { - return (pgd_t *)get_pointer_table(); + return get_pointer_table(TABLE_PGD); } @@ -102,9 +80,9 @@ static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t * static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t page) { - pmd_set(pmd, page_address(page)); + pmd_set(pmd, page); } -#define pmd_pgtable(pmd) pmd_page(pmd) +#define pmd_pgtable(pmd) ((pgtable_t)__pmd_page(pmd)) static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) { diff --git a/arch/m68k/include/asm/motorola_pgtable.h b/arch/m68k/include/asm/motorola_pgtable.h index 62bedc61f110..4b91a470ad58 100644 --- a/arch/m68k/include/asm/motorola_pgtable.h +++ b/arch/m68k/include/asm/motorola_pgtable.h @@ -23,7 +23,18 @@ #define _DESCTYPE_MASK 0x003 #define _CACHEMASK040 (~0x060) -#define _TABLE_MASK (0xfffffe00) + +/* + * Currently set to the minimum alignment of table pointers (256 bytes). + * The hardware only uses the low 4 bits for state: + * + * 3 - Used + * 2 - Write Protected + * 0,1 - Descriptor Type + * + * and has the rest of the bits reserved. + */ +#define _TABLE_MASK (0xffffff00) #define _PAGE_TABLE (_PAGE_SHORT) #define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_NOCACHE) @@ -108,13 +119,7 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) static inline void pmd_set(pmd_t *pmdp, pte_t *ptep) { - unsigned long ptbl = virt_to_phys(ptep) | _PAGE_TABLE | _PAGE_ACCESSED; - unsigned long *ptr = pmdp->pmd; - short i = 16; - while (--i >= 0) { - *ptr++ = ptbl; - ptbl += (sizeof(pte_t)*PTRS_PER_PTE/16); - } + pmd_val(*pmdp) = virt_to_phys(ptep) | _PAGE_TABLE | _PAGE_ACCESSED; } static inline void pud_set(pud_t *pudp, pmd_t *pmdp) @@ -138,13 +143,14 @@ static inline void pud_set(pud_t *pudp, pmd_t *pmdp) #define pmd_none(pmd) (!pmd_val(pmd)) #define pmd_bad(pmd) ((pmd_val(pmd) & _DESCTYPE_MASK) != _PAGE_TABLE) #define pmd_present(pmd) (pmd_val(pmd) & _PAGE_TABLE) -#define pmd_clear(pmdp) ({ \ - unsigned long *__ptr = pmdp->pmd; \ - short __i = 16; \ - while (--__i >= 0) \ - *__ptr++ = 0; \ -}) -#define pmd_page(pmd) virt_to_page(__va(pmd_val(pmd))) +#define pmd_clear(pmdp) ({ pmd_val(*pmdp) = 0; }) + +/* + * m68k does not have huge pages (020/030 actually could), but generic code + * expects pmd_page() to exists, only to then DCE it all. Provide a dummy to + * make the compiler happy. + */ +#define pmd_page(pmd) NULL #define pud_none(pud) (!pud_val(pud)) diff --git a/arch/m68k/include/asm/page.h b/arch/m68k/include/asm/page.h index 05e1e1e77a9a..da546487e177 100644 --- a/arch/m68k/include/asm/page.h +++ b/arch/m68k/include/asm/page.h @@ -22,15 +22,25 @@ * These are used to make use of C type-checking.. */ #if !defined(CONFIG_MMU) || CONFIG_PGTABLE_LEVELS == 3 -typedef struct { unsigned long pmd[16]; } pmd_t; -#define pmd_val(x) ((&x)->pmd[0]) -#define __pmd(x) ((pmd_t) { { (x) }, }) +typedef struct { unsigned long pmd; } pmd_t; +#define pmd_val(x) ((&x)->pmd) +#define __pmd(x) ((pmd_t) { (x) } ) #endif typedef struct { unsigned long pte; } pte_t; typedef struct { unsigned long pgd; } pgd_t; typedef struct { unsigned long pgprot; } pgprot_t; + +#if defined(CONFIG_SUN3) +/* + * Sun3 still uses the asm-generic/pgalloc.h code and thus needs this + * definition. It would be possible to unify Sun3 and ColdFire pgalloc and have + * all of m68k use the same type. + */ typedef struct page *pgtable_t; +#else +typedef pte_t *pgtable_t; +#endif #define pte_val(x) ((x).pte) #define pgd_val(x) ((x).pgd) diff --git a/arch/m68k/include/asm/pgtable_mm.h b/arch/m68k/include/asm/pgtable_mm.h index 2bf5c3501e78..f0e5167de834 100644 --- a/arch/m68k/include/asm/pgtable_mm.h +++ b/arch/m68k/include/asm/pgtable_mm.h @@ -36,7 +36,7 @@ /* PMD_SHIFT determines the size of the area a second-level page table can map */ #if CONFIG_PGTABLE_LEVELS == 3 -#define PMD_SHIFT 22 +#define PMD_SHIFT 18 #endif #define PMD_SIZE (1UL << PMD_SHIFT) #define PMD_MASK (~(PMD_SIZE-1)) @@ -67,8 +67,8 @@ #define PTRS_PER_PMD 1 #define PTRS_PER_PGD 1024 #else -#define PTRS_PER_PTE 1024 -#define PTRS_PER_PMD 8 +#define PTRS_PER_PTE 64 +#define PTRS_PER_PMD 128 #define PTRS_PER_PGD 128 #endif #define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE) @@ -76,8 +76,8 @@ /* Virtual address region for use by kernel_map() */ #ifdef CONFIG_SUN3 -#define KMAP_START 0x0DC00000 -#define KMAP_END 0x0E000000 +#define KMAP_START 0x0dc00000 +#define KMAP_END 0x0e000000 #elif defined(CONFIG_COLDFIRE) #define KMAP_START 0xe0000000 #define KMAP_END 0xf0000000 diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c index 27c453f4fffe..b88d510d4fe3 100644 --- a/arch/m68k/mm/init.c +++ b/arch/m68k/mm/init.c @@ -40,11 +40,6 @@ void *empty_zero_page; EXPORT_SYMBOL(empty_zero_page); -#if !defined(CONFIG_SUN3) && !defined(CONFIG_COLDFIRE) -extern void init_pointer_table(unsigned long ptable); -extern pmd_t *zero_pgtable; -#endif - #ifdef CONFIG_MMU pg_data_t pg_data_map[MAX_NUMNODES]; @@ -125,20 +120,31 @@ void free_initmem(void) static inline void init_pointer_tables(void) { #if defined(CONFIG_MMU) && !defined(CONFIG_SUN3) && !defined(CONFIG_COLDFIRE) - int i; + int i, j; /* insert pointer tables allocated so far into the tablelist */ - init_pointer_table((unsigned long)kernel_pg_dir); + init_pointer_table(kernel_pg_dir, TABLE_PGD); for (i = 0; i < PTRS_PER_PGD; i++) { - pud_t *pud = (pud_t *)(&kernel_pg_dir[i]); + pud_t *pud = (pud_t *)&kernel_pg_dir[i]; + pmd_t *pmd_dir; - if (pud_present(*pud)) - init_pointer_table(pgd_page_vaddr(kernel_pg_dir[i])); - } + if (!pud_present(*pud)) + continue; + + pmd_dir = (pmd_t *)pgd_page_vaddr(kernel_pg_dir[i]); + init_pointer_table(pmd_dir, TABLE_PMD); - /* insert also pointer table that we used to unmap the zero page */ - if (zero_pgtable) - init_pointer_table((unsigned long)zero_pgtable); + for (j = 0; j < PTRS_PER_PMD; j++) { + pmd_t *pmd = &pmd_dir[j]; + pte_t *pte_dir; + + if (!pmd_present(*pmd)) + continue; + + pte_dir = (pte_t *)__pmd_page(*pmd); + init_pointer_table(pte_dir, TABLE_PTE); + } + } #endif } diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c index 120030ad8dc4..14d31d216cef 100644 --- a/arch/m68k/mm/kmap.c +++ b/arch/m68k/mm/kmap.c @@ -24,8 +24,6 @@ #undef DEBUG -#define PTRTREESIZE (256*1024) - /* * For 040/060 we can use the virtual memory area like other architectures, * but for 020/030 we want to use early termination page descriptors and we @@ -50,7 +48,7 @@ static inline void free_io_area(void *addr) #else -#define IO_SIZE (256*1024) +#define IO_SIZE PMD_SIZE static struct vm_struct *iolist; @@ -81,14 +79,13 @@ static void __free_io_area(void *addr, unsigned long size) #if CONFIG_PGTABLE_LEVELS == 3 if (CPU_IS_020_OR_030) { - int pmd_off = (virtaddr/PTRTREESIZE) & 15; - int pmd_type = pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK; + int pmd_type = pmd_val(*pmd_dir) & _DESCTYPE_MASK; if (pmd_type == _PAGE_PRESENT) { - pmd_dir->pmd[pmd_off] = 0; - virtaddr += PTRTREESIZE; - size -= PTRTREESIZE; - continue; + pmd_clear(pmd_dir); + virtaddr += PMD_SIZE; + size -= PMD_SIZE; + } else if (pmd_type == 0) continue; } @@ -249,7 +246,7 @@ void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cachefla while ((long)size > 0) { #ifdef DEBUG - if (!(virtaddr & (PTRTREESIZE-1))) + if (!(virtaddr & (PMD_SIZE-1))) printk ("\npa=%#lx va=%#lx ", physaddr, virtaddr); #endif pgd_dir = pgd_offset_k(virtaddr); @@ -263,10 +260,10 @@ void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cachefla #if CONFIG_PGTABLE_LEVELS == 3 if (CPU_IS_020_OR_030) { - pmd_dir->pmd[(virtaddr/PTRTREESIZE) & 15] = physaddr; - physaddr += PTRTREESIZE; - virtaddr += PTRTREESIZE; - size -= PTRTREESIZE; + pmd_val(*pmd_dir) = physaddr; + physaddr += PMD_SIZE; + virtaddr += PMD_SIZE; + size -= PMD_SIZE; } else #endif { @@ -367,13 +364,12 @@ void kernel_set_cachemode(void *addr, unsigned long size, int cmode) #if CONFIG_PGTABLE_LEVELS == 3 if (CPU_IS_020_OR_030) { - int pmd_off = (virtaddr/PTRTREESIZE) & 15; + unsigned long pmd = pmd_val(*pmd_dir); - if ((pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK) == _PAGE_PRESENT) { - pmd_dir->pmd[pmd_off] = (pmd_dir->pmd[pmd_off] & - _CACHEMASK040) | cmode; - virtaddr += PTRTREESIZE; - size -= PTRTREESIZE; + if ((pmd & _DESCTYPE_MASK) == _PAGE_PRESENT) { + *pmd_dir = __pmd((pmd & _CACHEMASK040) | cmode); + virtaddr += PMD_SIZE; + size -= PMD_SIZE; continue; } } diff --git a/arch/m68k/mm/memory.c b/arch/m68k/mm/memory.c index 227c04fe60d2..65e0c4071912 100644 --- a/arch/m68k/mm/memory.c +++ b/arch/m68k/mm/memory.c @@ -22,109 +22,6 @@ #include <asm/machdep.h> -/* ++andreas: {get,free}_pointer_table rewritten to use unused fields from - struct page instead of separately kmalloced struct. Stolen from - arch/sparc/mm/srmmu.c ... */ - -typedef struct list_head ptable_desc; -static LIST_HEAD(ptable_list); - -#define PD_PTABLE(page) ((ptable_desc *)&(virt_to_page(page)->lru)) -#define PD_PAGE(ptable) (list_entry(ptable, struct page, lru)) -#define PD_MARKBITS(dp) (*(unsigned char *)&PD_PAGE(dp)->index) - -#define PTABLE_SIZE (PTRS_PER_PMD * sizeof(pmd_t)) - -void __init init_pointer_table(unsigned long ptable) -{ - ptable_desc *dp; - unsigned long page = ptable & PAGE_MASK; - unsigned char mask = 1 << ((ptable - page)/PTABLE_SIZE); - - dp = PD_PTABLE(page); - if (!(PD_MARKBITS(dp) & mask)) { - PD_MARKBITS(dp) = 0xff; - list_add(dp, &ptable_list); - } - - PD_MARKBITS(dp) &= ~mask; - pr_debug("init_pointer_table: %lx, %x\n", ptable, PD_MARKBITS(dp)); - - /* unreserve the page so it's possible to free that page */ - __ClearPageReserved(PD_PAGE(dp)); - init_page_count(PD_PAGE(dp)); - - return; -} - -pmd_t *get_pointer_table (void) -{ - ptable_desc *dp = ptable_list.next; - unsigned char mask = PD_MARKBITS (dp); - unsigned char tmp; - unsigned int off; - - /* - * For a pointer table for a user process address space, a - * table is taken from a page allocated for the purpose. Each - * page can hold 8 pointer tables. The page is remapped in - * virtual address space to be noncacheable. - */ - if (mask == 0) { - void *page; - ptable_desc *new; - - if (!(page = (void *)get_zeroed_page(GFP_KERNEL))) - return NULL; - - flush_tlb_kernel_page(page); - nocache_page(page); - - new = PD_PTABLE(page); - PD_MARKBITS(new) = 0xfe; - list_add_tail(new, dp); - - return (pmd_t *)page; - } - - for (tmp = 1, off = 0; (mask & tmp) == 0; tmp <<= 1, off += PTABLE_SIZE) - ; - PD_MARKBITS(dp) = mask & ~tmp; - if (!PD_MARKBITS(dp)) { - /* move to end of list */ - list_move_tail(dp, &ptable_list); - } - return (pmd_t *) (page_address(PD_PAGE(dp)) + off); -} - -int free_pointer_table (pmd_t *ptable) -{ - ptable_desc *dp; - unsigned long page = (unsigned long)ptable & PAGE_MASK; - unsigned char mask = 1 << (((unsigned long)ptable - page)/PTABLE_SIZE); - - dp = PD_PTABLE(page); - if (PD_MARKBITS (dp) & mask) - panic ("table already free!"); - - PD_MARKBITS (dp) |= mask; - - if (PD_MARKBITS(dp) == 0xff) { - /* all tables in page are free, free page */ - list_del(dp); - cache_page((void *)page); - free_page (page); - return 1; - } else if (ptable_list.next != dp) { - /* - * move this descriptor to the front of the list, since - * it has one or more free tables. - */ - list_move(dp, &ptable_list); - } - return 0; -} - /* invalidate page in both caches */ static inline void clear040(unsigned long paddr) { diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c index 4857985b8080..fc16190ec2d6 100644 --- a/arch/m68k/mm/motorola.c +++ b/arch/m68k/mm/motorola.c @@ -45,34 +45,185 @@ unsigned long mm_cachebits; EXPORT_SYMBOL(mm_cachebits); #endif + +/* + * Motorola 680x0 user's manual recommends using uncached memory for address + * translation tables. + * + * Seeing how the MMU can be external on (some of) these chips, that seems like + * a very important recommendation to follow. Provide some helpers to combat + * 'variation' amongst the users of this. + */ + +void mmu_page_ctor(void *page) +{ + __flush_page_to_ram(page); + flush_tlb_kernel_page(page); + nocache_page(page); +} + +void mmu_page_dtor(void *page) +{ + cache_page(page); +} + +/* ++andreas: {get,free}_pointer_table rewritten to use unused fields from + struct page instead of separately kmalloced struct. Stolen from + arch/sparc/mm/srmmu.c ... */ + +typedef struct list_head ptable_desc; + +static struct list_head ptable_list[2] = { + LIST_HEAD_INIT(ptable_list[0]), + LIST_HEAD_INIT(ptable_list[1]), +}; + +#define PD_PTABLE(page) ((ptable_desc *)&(virt_to_page(page)->lru)) +#define PD_PAGE(ptable) (list_entry(ptable, struct page, lru)) +#define PD_MARKBITS(dp) (*(unsigned int *)&PD_PAGE(dp)->index) + +static const int ptable_shift[2] = { + 7+2, /* PGD, PMD */ + 6+2, /* PTE */ +}; + +#define ptable_size(type) (1U << ptable_shift[type]) +#define ptable_mask(type) ((1U << (PAGE_SIZE / ptable_size(type))) - 1) + +void __init init_pointer_table(void *table, int type) +{ + ptable_desc *dp; + unsigned long ptable = (unsigned long)table; + unsigned long page = ptable & PAGE_MASK; + unsigned int mask = 1U << ((ptable - page)/ptable_size(type)); + + dp = PD_PTABLE(page); + if (!(PD_MARKBITS(dp) & mask)) { + PD_MARKBITS(dp) = ptable_mask(type); + list_add(dp, &ptable_list[type]); + } + + PD_MARKBITS(dp) &= ~mask; + pr_debug("init_pointer_table: %lx, %x\n", ptable, PD_MARKBITS(dp)); + + /* unreserve the page so it's possible to free that page */ + __ClearPageReserved(PD_PAGE(dp)); + init_page_count(PD_PAGE(dp)); + + return; +} + +void *get_pointer_table(int type) +{ + ptable_desc *dp = ptable_list[type].next; + unsigned int mask = list_empty(&ptable_list[type]) ? 0 : PD_MARKBITS(dp); + unsigned int tmp, off; + + /* + * For a pointer table for a user process address space, a + * table is taken from a page allocated for the purpose. Each + * page can hold 8 pointer tables. The page is remapped in + * virtual address space to be noncacheable. + */ + if (mask == 0) { + void *page; + ptable_desc *new; + + if (!(page = (void *)get_zeroed_page(GFP_KERNEL))) + return NULL; + + if (type == TABLE_PTE) { + /* + * m68k doesn't have SPLIT_PTE_PTLOCKS for not having + * SMP. + */ + pgtable_pte_page_ctor(virt_to_page(page)); + } + + mmu_page_ctor(page); + + new = PD_PTABLE(page); + PD_MARKBITS(new) = ptable_mask(type) - 1; + list_add_tail(new, dp); + + return (pmd_t *)page; + } + + for (tmp = 1, off = 0; (mask & tmp) == 0; tmp <<= 1, off += ptable_size(type)) + ; + PD_MARKBITS(dp) = mask & ~tmp; + if (!PD_MARKBITS(dp)) { + /* move to end of list */ + list_move_tail(dp, &ptable_list[type]); + } + return page_address(PD_PAGE(dp)) + off; +} + +int free_pointer_table(void *table, int type) +{ + ptable_desc *dp; + unsigned long ptable = (unsigned long)table; + unsigned long page = ptable & PAGE_MASK; + unsigned int mask = 1U << ((ptable - page)/ptable_size(type)); + + dp = PD_PTABLE(page); + if (PD_MARKBITS (dp) & mask) + panic ("table already free!"); + + PD_MARKBITS (dp) |= mask; + + if (PD_MARKBITS(dp) == ptable_mask(type)) { + /* all tables in page are free, free page */ + list_del(dp); + mmu_page_dtor((void *)page); + if (type == TABLE_PTE) + pgtable_pte_page_dtor(virt_to_page(page)); + free_page (page); + return 1; + } else if (ptable_list[type].next != dp) { + /* + * move this descriptor to the front of the list, since + * it has one or more free tables. + */ + list_move(dp, &ptable_list[type]); + } + return 0; +} + /* size of memory already mapped in head.S */ extern __initdata unsigned long m68k_init_mapped_size; extern unsigned long availmem; +static pte_t *last_pte_table __initdata = NULL; + static pte_t * __init kernel_page_table(void) { - pte_t *ptablep; + pte_t *pte_table = last_pte_table; - ptablep = (pte_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE); - if (!ptablep) - panic("%s: Failed to allocate %lu bytes align=%lx\n", - __func__, PAGE_SIZE, PAGE_SIZE); + if (((unsigned long)last_pte_table & ~PAGE_MASK) == 0) { + pte_table = (pte_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE); + if (!pte_table) { + panic("%s: Failed to allocate %lu bytes align=%lx\n", + __func__, PAGE_SIZE, PAGE_SIZE); + } - clear_page(ptablep); - __flush_page_to_ram(ptablep); - flush_tlb_kernel_page(ptablep); - nocache_page(ptablep); + clear_page(pte_table); + mmu_page_ctor(pte_table); - return ptablep; + last_pte_table = pte_table; + } + + last_pte_table += PTRS_PER_PTE; + + return pte_table; } -static pmd_t *last_pgtable __initdata = NULL; -pmd_t *zero_pgtable __initdata = NULL; +static pmd_t *last_pmd_table __initdata = NULL; static pmd_t * __init kernel_ptr_table(void) { - if (!last_pgtable) { + if (!last_pmd_table) { unsigned long pmd, last; int i; @@ -91,33 +242,29 @@ static pmd_t * __init kernel_ptr_table(void) last = pmd; } - last_pgtable = (pmd_t *)last; + last_pmd_table = (pmd_t *)last; #ifdef DEBUG - printk("kernel_ptr_init: %p\n", last_pgtable); + printk("kernel_ptr_init: %p\n", last_pmd_table); #endif } - last_pgtable += PTRS_PER_PMD; - if (((unsigned long)last_pgtable & ~PAGE_MASK) == 0) { - last_pgtable = (pmd_t *)memblock_alloc_low(PAGE_SIZE, + last_pmd_table += PTRS_PER_PMD; + if (((unsigned long)last_pmd_table & ~PAGE_MASK) == 0) { + last_pmd_table = (pmd_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE); - if (!last_pgtable) + if (!last_pmd_table) panic("%s: Failed to allocate %lu bytes align=%lx\n", __func__, PAGE_SIZE, PAGE_SIZE); - clear_page(last_pgtable); - __flush_page_to_ram(last_pgtable); - flush_tlb_kernel_page(last_pgtable); - nocache_page(last_pgtable); + clear_page(last_pmd_table); + mmu_page_ctor(last_pmd_table); } - return last_pgtable; + return last_pmd_table; } static void __init map_node(int node) { -#define PTRTREESIZE (256*1024) -#define ROOTTREESIZE (32*1024*1024) unsigned long physaddr, virtaddr, size; pgd_t *pgd_dir; p4d_t *p4d_dir; @@ -135,21 +282,21 @@ static void __init map_node(int node) while (size > 0) { #ifdef DEBUG - if (!(virtaddr & (PTRTREESIZE-1))) + if (!(virtaddr & (PMD_SIZE-1))) printk ("\npa=%#lx va=%#lx ", physaddr & PAGE_MASK, virtaddr); #endif pgd_dir = pgd_offset_k(virtaddr); if (virtaddr && CPU_IS_020_OR_030) { - if (!(virtaddr & (ROOTTREESIZE-1)) && - size >= ROOTTREESIZE) { + if (!(virtaddr & (PGDIR_SIZE-1)) && + size >= PGDIR_SIZE) { #ifdef DEBUG printk ("[very early term]"); #endif pgd_val(*pgd_dir) = physaddr; - size -= ROOTTREESIZE; - virtaddr += ROOTTREESIZE; - physaddr += ROOTTREESIZE; + size -= PGDIR_SIZE; + virtaddr += PGDIR_SIZE; + physaddr += PGDIR_SIZE; continue; } } @@ -169,24 +316,23 @@ static void __init map_node(int node) #ifdef DEBUG printk ("[early term]"); #endif - pmd_dir->pmd[(virtaddr/PTRTREESIZE) & 15] = physaddr; - physaddr += PTRTREESIZE; + pmd_val(*pmd_dir) = physaddr; + physaddr += PMD_SIZE; } else { int i; #ifdef DEBUG printk ("[zero map]"); #endif - zero_pgtable = kernel_ptr_table(); - pte_dir = (pte_t *)zero_pgtable; - pmd_dir->pmd[0] = virt_to_phys(pte_dir) | - _PAGE_TABLE | _PAGE_ACCESSED; + pte_dir = kernel_page_table(); + pmd_set(pmd_dir, pte_dir); + pte_val(*pte_dir++) = 0; physaddr += PAGE_SIZE; - for (i = 1; i < 64; physaddr += PAGE_SIZE, i++) + for (i = 1; i < PTRS_PER_PTE; physaddr += PAGE_SIZE, i++) pte_val(*pte_dir++) = physaddr; } - size -= PTRTREESIZE; - virtaddr += PTRTREESIZE; + size -= PMD_SIZE; + virtaddr += PMD_SIZE; } else { if (!pmd_present(*pmd_dir)) { #ifdef DEBUG |