diff options
Diffstat (limited to 'arch/m68k')
35 files changed, 203 insertions, 83 deletions
diff --git a/arch/m68k/68000/dragen2.c b/arch/m68k/68000/dragen2.c index 1a57eff28cfe..7f1804e31a06 100644 --- a/arch/m68k/68000/dragen2.c +++ b/arch/m68k/68000/dragen2.c @@ -15,7 +15,7 @@ #include "screen.h" /***************************************************************************/ -/* Init Drangon Engine hardware */ +/* Init Dragon Engine II hardware */ /***************************************************************************/ static void dragen2_reset(void) diff --git a/arch/m68k/68000/entry.S b/arch/m68k/68000/entry.S index 997b54933015..7d63e2f1555a 100644 --- a/arch/m68k/68000/entry.S +++ b/arch/m68k/68000/entry.S @@ -45,6 +45,8 @@ do_trace: jbsr syscall_trace_enter RESTORE_SWITCH_STACK addql #4,%sp + addql #1,%d0 + jeq ret_from_exception movel %sp@(PT_OFF_ORIG_D0),%d1 movel #-ENOSYS,%d0 cmpl #NR_syscalls,%d1 diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 7bff88118507..82154952e574 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -18,6 +18,8 @@ config M68K select GENERIC_CPU_DEVICES select GENERIC_IOMAP select GENERIC_IRQ_SHOW + select HAVE_ARCH_SECCOMP + select HAVE_ARCH_SECCOMP_FILTER select HAVE_ASM_MODVERSIONS select HAVE_DEBUG_BUGVERBOSE select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_HAS_NO_UNALIGNED diff --git a/arch/m68k/Kconfig.devices b/arch/m68k/Kconfig.devices index 6a87b4a5fcac..e6e3efac1840 100644 --- a/arch/m68k/Kconfig.devices +++ b/arch/m68k/Kconfig.devices @@ -19,6 +19,7 @@ config HEARTBEAT # We have a dedicated heartbeat LED. :-) config PROC_HARDWARE bool "/proc/hardware support" + depends on PROC_FS help Say Y here to support the /proc/hardware file, which gives you access to information about the machine you're running on, diff --git a/arch/m68k/Kconfig.machine b/arch/m68k/Kconfig.machine index 53c45ccda564..e2f961208f18 100644 --- a/arch/m68k/Kconfig.machine +++ b/arch/m68k/Kconfig.machine @@ -192,18 +192,18 @@ config UCSIMM Support for the Arcturus Networks uCsimm module. config UCDIMM - bool "uDsimm module support" + bool "uCdimm module support" depends on !MMU select M68VZ328 help - Support for the Arcturus Networks uDsimm module. + Support for the Arcturus Networks uCdimm module. config DRAGEN2 - bool "DragenEngine II board support" + bool "DragonEngine II board support" depends on !MMU select M68VZ328 help - Support for the DragenEngine II board. + Support for the DragonEngine II board. config DIRECT_IO_ACCESS bool "Allow user to access IO directly" diff --git a/arch/m68k/coldfire/entry.S b/arch/m68k/coldfire/entry.S index 9f337c70243a..35104c5417ff 100644 --- a/arch/m68k/coldfire/entry.S +++ b/arch/m68k/coldfire/entry.S @@ -90,6 +90,8 @@ ENTRY(system_call) jbsr syscall_trace_enter RESTORE_SWITCH_STACK addql #4,%sp + addql #1,%d0 + jeq ret_from_exception movel %d3,%a0 jbsr %a0@ movel %d0,%sp@(PT_OFF_D0) /* save the return value */ diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig index 7b49fe6f7cb3..ec2d792015a4 100644 --- a/arch/m68k/configs/amiga_defconfig +++ b/arch/m68k/configs/amiga_defconfig @@ -108,7 +108,6 @@ CONFIG_NFT_MASQ=m CONFIG_NFT_REDIR=m CONFIG_NFT_NAT=m CONFIG_NFT_TUNNEL=m -CONFIG_NFT_OBJREF=m CONFIG_NFT_QUEUE=m CONFIG_NFT_QUOTA=m CONFIG_NFT_REJECT=m @@ -630,7 +629,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_STRING_SELFTEST=m CONFIG_TEST_STRING_HELPERS=m -CONFIG_TEST_STRSCPY=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m CONFIG_TEST_SCANF=m @@ -638,7 +636,6 @@ CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m CONFIG_TEST_RHASHTABLE=m -CONFIG_TEST_SIPHASH=m CONFIG_TEST_IDA=m CONFIG_TEST_BITOPS=m CONFIG_TEST_VMALLOC=m diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig index 656a06d97d4c..061a07824dc2 100644 --- a/arch/m68k/configs/apollo_defconfig +++ b/arch/m68k/configs/apollo_defconfig @@ -104,7 +104,6 @@ CONFIG_NFT_MASQ=m CONFIG_NFT_REDIR=m CONFIG_NFT_NAT=m CONFIG_NFT_TUNNEL=m -CONFIG_NFT_OBJREF=m CONFIG_NFT_QUEUE=m CONFIG_NFT_QUOTA=m CONFIG_NFT_REJECT=m @@ -586,7 +585,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_STRING_SELFTEST=m CONFIG_TEST_STRING_HELPERS=m -CONFIG_TEST_STRSCPY=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m CONFIG_TEST_SCANF=m @@ -594,7 +592,6 @@ CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m CONFIG_TEST_RHASHTABLE=m -CONFIG_TEST_SIPHASH=m CONFIG_TEST_IDA=m CONFIG_TEST_BITOPS=m CONFIG_TEST_VMALLOC=m diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig index 8972b822875d..02af5f501dae 100644 --- a/arch/m68k/configs/atari_defconfig +++ b/arch/m68k/configs/atari_defconfig @@ -111,7 +111,6 @@ CONFIG_NFT_MASQ=m CONFIG_NFT_REDIR=m CONFIG_NFT_NAT=m CONFIG_NFT_TUNNEL=m -CONFIG_NFT_OBJREF=m CONFIG_NFT_QUEUE=m CONFIG_NFT_QUOTA=m CONFIG_NFT_REJECT=m @@ -607,7 +606,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_STRING_SELFTEST=m CONFIG_TEST_STRING_HELPERS=m -CONFIG_TEST_STRSCPY=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m CONFIG_TEST_SCANF=m @@ -615,7 +613,6 @@ CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m CONFIG_TEST_RHASHTABLE=m -CONFIG_TEST_SIPHASH=m CONFIG_TEST_IDA=m CONFIG_TEST_BITOPS=m CONFIG_TEST_VMALLOC=m diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig index 7b86e1277a1a..0d5832cb3e10 100644 --- a/arch/m68k/configs/bvme6000_defconfig +++ b/arch/m68k/configs/bvme6000_defconfig @@ -101,7 +101,6 @@ CONFIG_NFT_MASQ=m CONFIG_NFT_REDIR=m CONFIG_NFT_NAT=m CONFIG_NFT_TUNNEL=m -CONFIG_NFT_OBJREF=m CONFIG_NFT_QUEUE=m CONFIG_NFT_QUOTA=m CONFIG_NFT_REJECT=m @@ -578,7 +577,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_STRING_SELFTEST=m CONFIG_TEST_STRING_HELPERS=m -CONFIG_TEST_STRSCPY=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m CONFIG_TEST_SCANF=m @@ -586,7 +584,6 @@ CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m CONFIG_TEST_RHASHTABLE=m -CONFIG_TEST_SIPHASH=m CONFIG_TEST_IDA=m CONFIG_TEST_BITOPS=m CONFIG_TEST_VMALLOC=m diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig index d0d5c0a9aee6..c246c3538839 100644 --- a/arch/m68k/configs/hp300_defconfig +++ b/arch/m68k/configs/hp300_defconfig @@ -103,7 +103,6 @@ CONFIG_NFT_MASQ=m CONFIG_NFT_REDIR=m CONFIG_NFT_NAT=m CONFIG_NFT_TUNNEL=m -CONFIG_NFT_OBJREF=m CONFIG_NFT_QUEUE=m CONFIG_NFT_QUOTA=m CONFIG_NFT_REJECT=m @@ -588,7 +587,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_STRING_SELFTEST=m CONFIG_TEST_STRING_HELPERS=m -CONFIG_TEST_STRSCPY=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m CONFIG_TEST_SCANF=m @@ -596,7 +594,6 @@ CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m CONFIG_TEST_RHASHTABLE=m -CONFIG_TEST_SIPHASH=m CONFIG_TEST_IDA=m CONFIG_TEST_BITOPS=m CONFIG_TEST_VMALLOC=m diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig index ac1d0c86b6ff..98d2d0599e5a 100644 --- a/arch/m68k/configs/mac_defconfig +++ b/arch/m68k/configs/mac_defconfig @@ -102,7 +102,6 @@ CONFIG_NFT_MASQ=m CONFIG_NFT_REDIR=m CONFIG_NFT_NAT=m CONFIG_NFT_TUNNEL=m -CONFIG_NFT_OBJREF=m CONFIG_NFT_QUEUE=m CONFIG_NFT_QUOTA=m CONFIG_NFT_REJECT=m @@ -609,7 +608,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_STRING_SELFTEST=m CONFIG_TEST_STRING_HELPERS=m -CONFIG_TEST_STRSCPY=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m CONFIG_TEST_SCANF=m @@ -617,7 +615,6 @@ CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m CONFIG_TEST_RHASHTABLE=m -CONFIG_TEST_SIPHASH=m CONFIG_TEST_IDA=m CONFIG_TEST_BITOPS=m CONFIG_TEST_VMALLOC=m diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig index c5f7603c9830..b2d5ec6ba625 100644 --- a/arch/m68k/configs/multi_defconfig +++ b/arch/m68k/configs/multi_defconfig @@ -122,7 +122,6 @@ CONFIG_NFT_MASQ=m CONFIG_NFT_REDIR=m CONFIG_NFT_NAT=m CONFIG_NFT_TUNNEL=m -CONFIG_NFT_OBJREF=m CONFIG_NFT_QUEUE=m CONFIG_NFT_QUOTA=m CONFIG_NFT_REJECT=m @@ -315,6 +314,7 @@ CONFIG_AF_KCM=m # CONFIG_WIRELESS is not set CONFIG_PSAMPLE=m CONFIG_NET_IFE=m +CONFIG_PCCARD=y CONFIG_DEVTMPFS=y CONFIG_DEVTMPFS_MOUNT=y CONFIG_TEST_ASYNC_DRIVER_PROBE=m @@ -695,7 +695,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_STRING_SELFTEST=m CONFIG_TEST_STRING_HELPERS=m -CONFIG_TEST_STRSCPY=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m CONFIG_TEST_SCANF=m @@ -703,7 +702,6 @@ CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m CONFIG_TEST_RHASHTABLE=m -CONFIG_TEST_SIPHASH=m CONFIG_TEST_IDA=m CONFIG_TEST_BITOPS=m CONFIG_TEST_VMALLOC=m diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig index 26f5b59e3bc0..d3420c642992 100644 --- a/arch/m68k/configs/mvme147_defconfig +++ b/arch/m68k/configs/mvme147_defconfig @@ -100,7 +100,6 @@ CONFIG_NFT_MASQ=m CONFIG_NFT_REDIR=m CONFIG_NFT_NAT=m CONFIG_NFT_TUNNEL=m -CONFIG_NFT_OBJREF=m CONFIG_NFT_QUEUE=m CONFIG_NFT_QUOTA=m CONFIG_NFT_REJECT=m @@ -577,7 +576,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_STRING_SELFTEST=m CONFIG_TEST_STRING_HELPERS=m -CONFIG_TEST_STRSCPY=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m CONFIG_TEST_SCANF=m @@ -585,7 +583,6 @@ CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m CONFIG_TEST_RHASHTABLE=m -CONFIG_TEST_SIPHASH=m CONFIG_TEST_IDA=m CONFIG_TEST_BITOPS=m CONFIG_TEST_VMALLOC=m diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig index 3045c7f0bde3..e294b0b67695 100644 --- a/arch/m68k/configs/mvme16x_defconfig +++ b/arch/m68k/configs/mvme16x_defconfig @@ -101,7 +101,6 @@ CONFIG_NFT_MASQ=m CONFIG_NFT_REDIR=m CONFIG_NFT_NAT=m CONFIG_NFT_TUNNEL=m -CONFIG_NFT_OBJREF=m CONFIG_NFT_QUEUE=m CONFIG_NFT_QUOTA=m CONFIG_NFT_REJECT=m @@ -578,7 +577,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_STRING_SELFTEST=m CONFIG_TEST_STRING_HELPERS=m -CONFIG_TEST_STRSCPY=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m CONFIG_TEST_SCANF=m @@ -586,7 +584,6 @@ CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m CONFIG_TEST_RHASHTABLE=m -CONFIG_TEST_SIPHASH=m CONFIG_TEST_IDA=m CONFIG_TEST_BITOPS=m CONFIG_TEST_VMALLOC=m diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig index f2a486be651b..764a94b08936 100644 --- a/arch/m68k/configs/q40_defconfig +++ b/arch/m68k/configs/q40_defconfig @@ -102,7 +102,6 @@ CONFIG_NFT_MASQ=m CONFIG_NFT_REDIR=m CONFIG_NFT_NAT=m CONFIG_NFT_TUNNEL=m -CONFIG_NFT_OBJREF=m CONFIG_NFT_QUEUE=m CONFIG_NFT_QUOTA=m CONFIG_NFT_REJECT=m @@ -596,7 +595,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_STRING_SELFTEST=m CONFIG_TEST_STRING_HELPERS=m -CONFIG_TEST_STRSCPY=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m CONFIG_TEST_SCANF=m @@ -604,7 +602,6 @@ CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m CONFIG_TEST_RHASHTABLE=m -CONFIG_TEST_SIPHASH=m CONFIG_TEST_IDA=m CONFIG_TEST_BITOPS=m CONFIG_TEST_VMALLOC=m diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig index 8a7db7be10c0..d4eeddac6bb8 100644 --- a/arch/m68k/configs/sun3_defconfig +++ b/arch/m68k/configs/sun3_defconfig @@ -98,7 +98,6 @@ CONFIG_NFT_MASQ=m CONFIG_NFT_REDIR=m CONFIG_NFT_NAT=m CONFIG_NFT_TUNNEL=m -CONFIG_NFT_OBJREF=m CONFIG_NFT_QUEUE=m CONFIG_NFT_QUOTA=m CONFIG_NFT_REJECT=m @@ -576,7 +575,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_STRING_SELFTEST=m CONFIG_TEST_STRING_HELPERS=m -CONFIG_TEST_STRSCPY=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m CONFIG_TEST_SCANF=m @@ -584,7 +582,6 @@ CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m CONFIG_TEST_RHASHTABLE=m -CONFIG_TEST_SIPHASH=m CONFIG_TEST_IDA=m CONFIG_TEST_BITOPS=m CONFIG_TEST_VMALLOC=m diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig index 7ed49ee0b9e0..ca359b880683 100644 --- a/arch/m68k/configs/sun3x_defconfig +++ b/arch/m68k/configs/sun3x_defconfig @@ -98,7 +98,6 @@ CONFIG_NFT_MASQ=m CONFIG_NFT_REDIR=m CONFIG_NFT_NAT=m CONFIG_NFT_TUNNEL=m -CONFIG_NFT_OBJREF=m CONFIG_NFT_QUEUE=m CONFIG_NFT_QUOTA=m CONFIG_NFT_REJECT=m @@ -576,7 +575,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_STRING_SELFTEST=m CONFIG_TEST_STRING_HELPERS=m -CONFIG_TEST_STRSCPY=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m CONFIG_TEST_SCANF=m @@ -584,7 +582,6 @@ CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m CONFIG_TEST_RHASHTABLE=m -CONFIG_TEST_SIPHASH=m CONFIG_TEST_IDA=m CONFIG_TEST_BITOPS=m CONFIG_TEST_VMALLOC=m diff --git a/arch/m68k/include/asm/gpio.h b/arch/m68k/include/asm/gpio.h index a50b27719a58..5cfc0996ba94 100644 --- a/arch/m68k/include/asm/gpio.h +++ b/arch/m68k/include/asm/gpio.h @@ -66,13 +66,6 @@ static inline int gpio_to_irq(unsigned gpio) return __gpio_to_irq(gpio); } -static inline int irq_to_gpio(unsigned irq) -{ - return (irq >= MCFGPIO_IRQ_VECBASE && - irq < (MCFGPIO_IRQ_VECBASE + MCFGPIO_IRQ_MAX)) ? - irq - MCFGPIO_IRQ_VECBASE : -ENXIO; -} - static inline int gpio_cansleep(unsigned gpio) { return gpio < MCFGPIO_PIN_MAX ? 0 : __gpio_cansleep(gpio); diff --git a/arch/m68k/include/asm/mcf_pgtable.h b/arch/m68k/include/asm/mcf_pgtable.h index b619b22823f8..13741c1245e1 100644 --- a/arch/m68k/include/asm/mcf_pgtable.h +++ b/arch/m68k/include/asm/mcf_pgtable.h @@ -46,6 +46,9 @@ #define _CACHEMASK040 (~0x060) #define _PAGE_GLOBAL040 0x400 /* 68040 global bit, used for kva descs */ +/* We borrow bit 24 to store the exclusive marker in swap PTEs. */ +#define _PAGE_SWP_EXCLUSIVE CF_PAGE_NOCACHE + /* * Externally used page protection values. */ @@ -254,15 +257,41 @@ static inline pte_t pte_mkcache(pte_t pte) extern pgd_t kernel_pg_dir[PTRS_PER_PGD]; /* - * Encode and de-code a swap entry (must be !pte_none(e) && !pte_present(e)) + * Encode/decode swap entries and swap PTEs. Swap PTEs are all PTEs that + * are !pte_none() && !pte_present(). + * + * Format of swap PTEs: + * + * 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * <------------------ offset -------------> 0 0 0 E <-- type ---> + * + * E is the exclusive marker that is not stored in swap entries. */ -#define __swp_type(x) ((x).val & 0xFF) +#define __swp_type(x) ((x).val & 0x7f) #define __swp_offset(x) ((x).val >> 11) -#define __swp_entry(typ, off) ((swp_entry_t) { (typ) | \ +#define __swp_entry(typ, off) ((swp_entry_t) { ((typ) & 0x7f) | \ (off << 11) }) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) (__pte((x).val)) +static inline int pte_swp_exclusive(pte_t pte) +{ + return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; +} + +static inline pte_t pte_swp_mkexclusive(pte_t pte) +{ + pte_val(pte) |= _PAGE_SWP_EXCLUSIVE; + return pte; +} + +static inline pte_t pte_swp_clear_exclusive(pte_t pte) +{ + pte_val(pte) &= ~_PAGE_SWP_EXCLUSIVE; + return pte; +} + #define pmd_pfn(pmd) (pmd_val(pmd) >> PAGE_SHIFT) #define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT)) diff --git a/arch/m68k/include/asm/motorola_pgtable.h b/arch/m68k/include/asm/motorola_pgtable.h index 7ac3d64c6b33..ec0dc19ab834 100644 --- a/arch/m68k/include/asm/motorola_pgtable.h +++ b/arch/m68k/include/asm/motorola_pgtable.h @@ -41,6 +41,9 @@ #define _PAGE_PROTNONE 0x004 +/* We borrow bit 11 to store the exclusive marker in swap PTEs. */ +#define _PAGE_SWP_EXCLUSIVE 0x800 + #ifndef __ASSEMBLY__ /* This is the cache mode to be used for pages containing page descriptors for @@ -124,7 +127,7 @@ static inline void pud_set(pud_t *pudp, pmd_t *pmdp) * 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 pmd_page(pmd) ((struct page *)NULL) #define pud_none(pud) (!pud_val(pud)) @@ -169,12 +172,40 @@ static inline pte_t pte_mkcache(pte_t pte) #define swapper_pg_dir kernel_pg_dir extern pgd_t kernel_pg_dir[128]; -/* Encode and de-code a swap entry (must be !pte_none(e) && !pte_present(e)) */ -#define __swp_type(x) (((x).val >> 4) & 0xff) +/* + * Encode/decode swap entries and swap PTEs. Swap PTEs are all PTEs that + * are !pte_none() && !pte_present(). + * + * Format of swap PTEs: + * + * 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * <----------------- offset ------------> E <-- type ---> 0 0 0 0 + * + * E is the exclusive marker that is not stored in swap entries. + */ +#define __swp_type(x) (((x).val >> 4) & 0x7f) #define __swp_offset(x) ((x).val >> 12) -#define __swp_entry(type, offset) ((swp_entry_t) { ((type) << 4) | ((offset) << 12) }) +#define __swp_entry(type, offset) ((swp_entry_t) { (((type) & 0x7f) << 4) | ((offset) << 12) }) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) +static inline int pte_swp_exclusive(pte_t pte) +{ + return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; +} + +static inline pte_t pte_swp_mkexclusive(pte_t pte) +{ + pte_val(pte) |= _PAGE_SWP_EXCLUSIVE; + return pte; +} + +static inline pte_t pte_swp_clear_exclusive(pte_t pte) +{ + pte_val(pte) &= ~_PAGE_SWP_EXCLUSIVE; + return pte; +} + #endif /* !__ASSEMBLY__ */ #endif /* _MOTOROLA_PGTABLE_H */ diff --git a/arch/m68k/include/asm/page.h b/arch/m68k/include/asm/page.h index 2f1c54e4725d..a5993ad83ed8 100644 --- a/arch/m68k/include/asm/page.h +++ b/arch/m68k/include/asm/page.h @@ -62,11 +62,7 @@ extern unsigned long _ramend; #include <asm/page_no.h> #endif -#ifndef CONFIG_MMU -#define __phys_to_pfn(paddr) ((unsigned long)((paddr) >> PAGE_SHIFT)) -#define __pfn_to_phys(pfn) PFN_PHYS(pfn) -#endif - #include <asm-generic/getorder.h> +#include <asm-generic/memory_model.h> #endif /* _M68K_PAGE_H */ diff --git a/arch/m68k/include/asm/page_mm.h b/arch/m68k/include/asm/page_mm.h index a5b459bcb7d8..3903db2e8da7 100644 --- a/arch/m68k/include/asm/page_mm.h +++ b/arch/m68k/include/asm/page_mm.h @@ -134,7 +134,6 @@ extern int m68k_virt_to_node_shift; }) #define ARCH_PFN_OFFSET (m68k_memory[0].addr >> PAGE_SHIFT) -#include <asm-generic/memory_model.h> #define virt_addr_valid(kaddr) ((unsigned long)(kaddr) >= PAGE_OFFSET && (unsigned long)(kaddr) < (unsigned long)high_memory) #define pfn_valid(pfn) virt_addr_valid(pfn_to_virt(pfn)) diff --git a/arch/m68k/include/asm/page_no.h b/arch/m68k/include/asm/page_no.h index c9d0d84158a4..060e4c0e7605 100644 --- a/arch/m68k/include/asm/page_no.h +++ b/arch/m68k/include/asm/page_no.h @@ -13,9 +13,8 @@ extern unsigned long memory_end; #define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) -#define alloc_zeroed_user_highpage_movable(vma, vaddr) \ - alloc_page_vma(GFP_HIGHUSER_MOVABLE | __GFP_ZERO, vma, vaddr) -#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE_MOVABLE +#define vma_alloc_zeroed_movable_folio(vma, vaddr) \ + vma_alloc_folio(GFP_HIGHUSER_MOVABLE | __GFP_ZERO, 0, vma, vaddr, false) #define __pa(vaddr) ((unsigned long)(vaddr)) #define __va(paddr) ((void *)((unsigned long)(paddr))) @@ -26,13 +25,11 @@ extern unsigned long memory_end; #define virt_to_page(addr) (mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)) #define page_to_virt(page) __va(((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)) -#define pfn_to_page(pfn) virt_to_page(pfn_to_virt(pfn)) -#define page_to_pfn(page) virt_to_pfn(page_to_virt(page)) -#define pfn_valid(pfn) ((pfn) < max_mapnr) - #define virt_addr_valid(kaddr) (((unsigned long)(kaddr) >= PAGE_OFFSET) && \ ((unsigned long)(kaddr) < memory_end)) +#define ARCH_PFN_OFFSET PHYS_PFN(PAGE_OFFSET_RAW) + #endif /* __ASSEMBLY__ */ #endif /* _M68K_PAGE_NO_H */ diff --git a/arch/m68k/include/asm/pgtable_no.h b/arch/m68k/include/asm/pgtable_no.h index fed58da3a6b6..fc044df52b96 100644 --- a/arch/m68k/include/asm/pgtable_no.h +++ b/arch/m68k/include/asm/pgtable_no.h @@ -31,12 +31,6 @@ extern void paging_init(void); #define swapper_pg_dir ((pgd_t *) 0) -#define __swp_type(x) (0) -#define __swp_offset(x) (0) -#define __swp_entry(typ,off) ((swp_entry_t) { ((typ) | ((off) << 7)) }) -#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) -#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) - /* * ZERO_PAGE is a global shared page that is always zero: used * for zero-mapped memory areas etc.. diff --git a/arch/m68k/include/asm/seccomp.h b/arch/m68k/include/asm/seccomp.h new file mode 100644 index 000000000000..de8a94e1fb3f --- /dev/null +++ b/arch/m68k/include/asm/seccomp.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef _ASM_SECCOMP_H +#define _ASM_SECCOMP_H + +#include <asm-generic/seccomp.h> + +#define SECCOMP_ARCH_NATIVE AUDIT_ARCH_M68K +#define SECCOMP_ARCH_NATIVE_NR NR_syscalls +#define SECCOMP_ARCH_NATIVE_NAME "m68k" + +#endif /* _ASM_SECCOMP_H */ diff --git a/arch/m68k/include/asm/sun3_pgtable.h b/arch/m68k/include/asm/sun3_pgtable.h index 90d57e537eb1..e582b0484a55 100644 --- a/arch/m68k/include/asm/sun3_pgtable.h +++ b/arch/m68k/include/asm/sun3_pgtable.h @@ -71,6 +71,9 @@ #define SUN3_PMD_MASK (0x0000003F) #define SUN3_PMD_MAGIC (0x0000002B) +/* We borrow bit 6 to store the exclusive marker in swap PTEs. */ +#define _PAGE_SWP_EXCLUSIVE 0x040 + #ifndef __ASSEMBLY__ /* @@ -152,12 +155,41 @@ static inline pte_t pte_mkcache(pte_t pte) { return pte; } extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; extern pgd_t kernel_pg_dir[PTRS_PER_PGD]; -/* Macros to (de)construct the fake PTEs representing swap pages. */ -#define __swp_type(x) ((x).val & 0x7F) +/* + * Encode/decode swap entries and swap PTEs. Swap PTEs are all PTEs that + * are !pte_none() && !pte_present(). + * + * Format of swap PTEs: + * + * 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * 0 <--------------------- offset ----------------> E <- type --> + * + * E is the exclusive marker that is not stored in swap entries. + */ +#define __swp_type(x) ((x).val & 0x3f) #define __swp_offset(x) (((x).val) >> 7) -#define __swp_entry(type,offset) ((swp_entry_t) { ((type) | ((offset) << 7)) }) +#define __swp_entry(type, offset) ((swp_entry_t) { (((type) & 0x3f) | \ + (((offset) << 7) & ~SUN3_PAGE_VALID)) }) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) +static inline int pte_swp_exclusive(pte_t pte) +{ + return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; +} + +static inline pte_t pte_swp_mkexclusive(pte_t pte) +{ + pte_val(pte) |= _PAGE_SWP_EXCLUSIVE; + return pte; +} + +static inline pte_t pte_swp_clear_exclusive(pte_t pte) +{ + pte_val(pte) &= ~_PAGE_SWP_EXCLUSIVE; + return pte; +} + #endif /* !__ASSEMBLY__ */ #endif /* !_SUN3_PGTABLE_H */ diff --git a/arch/m68k/include/asm/syscall.h b/arch/m68k/include/asm/syscall.h index 465ac039be09..d1453e850cdd 100644 --- a/arch/m68k/include/asm/syscall.h +++ b/arch/m68k/include/asm/syscall.h @@ -4,6 +4,63 @@ #include <uapi/linux/audit.h> +#include <asm/unistd.h> + +extern const unsigned long sys_call_table[]; + +static inline int syscall_get_nr(struct task_struct *task, + struct pt_regs *regs) +{ + return regs->orig_d0; +} + +static inline void syscall_rollback(struct task_struct *task, + struct pt_regs *regs) +{ + regs->d0 = regs->orig_d0; +} + +static inline long syscall_get_error(struct task_struct *task, + struct pt_regs *regs) +{ + unsigned long error = regs->d0; + + return IS_ERR_VALUE(error) ? error : 0; +} + +static inline long syscall_get_return_value(struct task_struct *task, + struct pt_regs *regs) +{ + return regs->d0; +} + +static inline void syscall_set_return_value(struct task_struct *task, + struct pt_regs *regs, + int error, long val) +{ + regs->d0 = (long)error ?: val; +} + +static inline void syscall_get_arguments(struct task_struct *task, + struct pt_regs *regs, + unsigned long *args) +{ + args[0] = regs->orig_d0; + args++; + + memcpy(args, ®s->d1, 5 * sizeof(args[0])); +} + +static inline void syscall_set_arguments(struct task_struct *task, + struct pt_regs *regs, + unsigned long *args) +{ + regs->orig_d0 = args[0]; + args++; + + memcpy(®s->d1, args, 5 * sizeof(args[0])); +} + static inline int syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_M68K; diff --git a/arch/m68k/include/asm/thread_info.h b/arch/m68k/include/asm/thread_info.h index c952658ba792..31be2ad999ca 100644 --- a/arch/m68k/include/asm/thread_info.h +++ b/arch/m68k/include/asm/thread_info.h @@ -61,6 +61,7 @@ static inline struct thread_info *current_thread_info(void) #define TIF_NOTIFY_RESUME 5 /* callback before returning to user */ #define TIF_SIGPENDING 6 /* signal pending */ #define TIF_NEED_RESCHED 7 /* rescheduling necessary */ +#define TIF_SECCOMP 13 /* seccomp syscall filtering active */ #define TIF_DELAYED_TRACE 14 /* single step a syscall */ #define TIF_SYSCALL_TRACE 15 /* syscall trace active */ #define TIF_MEMDIE 16 /* is terminating due to OOM killer */ @@ -69,6 +70,7 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) +#define _TIF_SECCOMP (1 << TIF_SECCOMP) #define _TIF_DELAYED_TRACE (1 << TIF_DELAYED_TRACE) #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) #define _TIF_MEMDIE (1 << TIF_MEMDIE) diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S index 18f278bdbd21..4dd2fd7acba9 100644 --- a/arch/m68k/kernel/entry.S +++ b/arch/m68k/kernel/entry.S @@ -184,9 +184,12 @@ do_trace_entry: jbsr syscall_trace_enter RESTORE_SWITCH_STACK addql #4,%sp + addql #1,%d0 | optimization for cmpil #-1,%d0 + jeq ret_from_syscall movel %sp@(PT_OFF_ORIG_D0),%d0 cmpl #NR_syscalls,%d0 jcs syscall + jra ret_from_syscall badsys: movel #-ENOSYS,%sp@(PT_OFF_D0) jra ret_from_syscall @@ -211,6 +214,9 @@ ENTRY(system_call) | syscall trace? tstb %a1@(TINFO_FLAGS+2) jmi do_trace_entry + | seccomp filter active? + btst #5,%a1@(TINFO_FLAGS+2) + bnes do_trace_entry cmpl #NR_syscalls,%d0 jcc badsys syscall: diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c index 0a4184a37461..cd0172d29430 100644 --- a/arch/m68k/kernel/ptrace.c +++ b/arch/m68k/kernel/ptrace.c @@ -21,7 +21,7 @@ #include <linux/signal.h> #include <linux/regset.h> #include <linux/elf.h> - +#include <linux/seccomp.h> #include <linux/uaccess.h> #include <asm/page.h> #include <asm/processor.h> @@ -278,6 +278,10 @@ asmlinkage int syscall_trace_enter(void) if (test_thread_flag(TIF_SYSCALL_TRACE)) ret = ptrace_report_syscall_entry(task_pt_regs(current)); + + if (secure_computing() == -1) + return -1; + return ret; } diff --git a/arch/m68k/kernel/vmlinux-nommu.lds b/arch/m68k/kernel/vmlinux-nommu.lds index 387f334e87d3..2624fc18c131 100644 --- a/arch/m68k/kernel/vmlinux-nommu.lds +++ b/arch/m68k/kernel/vmlinux-nommu.lds @@ -48,7 +48,6 @@ SECTIONS { IRQENTRY_TEXT SOFTIRQENTRY_TEXT SCHED_TEXT - CPUIDLE_TEXT LOCK_TEXT *(.fixup) . = ALIGN(16); diff --git a/arch/m68k/kernel/vmlinux-std.lds b/arch/m68k/kernel/vmlinux-std.lds index ed1d9eda3190..1ccdd04ae462 100644 --- a/arch/m68k/kernel/vmlinux-std.lds +++ b/arch/m68k/kernel/vmlinux-std.lds @@ -19,7 +19,6 @@ SECTIONS IRQENTRY_TEXT SOFTIRQENTRY_TEXT SCHED_TEXT - CPUIDLE_TEXT LOCK_TEXT *(.fixup) *(.gnu.warning) diff --git a/arch/m68k/kernel/vmlinux-sun3.lds b/arch/m68k/kernel/vmlinux-sun3.lds index 4a52f44f2ef0..f13ddcc2af5c 100644 --- a/arch/m68k/kernel/vmlinux-sun3.lds +++ b/arch/m68k/kernel/vmlinux-sun3.lds @@ -19,7 +19,6 @@ SECTIONS IRQENTRY_TEXT SOFTIRQENTRY_TEXT SCHED_TEXT - CPUIDLE_TEXT LOCK_TEXT *(.fixup) *(.gnu.warning) diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c index d15057d34e56..127d7ecdbd49 100644 --- a/arch/m68k/q40/q40ints.c +++ b/arch/m68k/q40/q40ints.c @@ -201,8 +201,8 @@ static int ccleirq=60; /* ISA dev IRQs*/ #define DEBUG_Q40INT /*#define IP_USE_DISABLE *//* would be nice, but crashes ???? */ -static int mext_disabled=0; /* ext irq disabled by master chip? */ -static int aliased_irq=0; /* how many times inside handler ?*/ +static int mext_disabled; /* ext irq disabled by master chip? */ +static int aliased_irq; /* how many times inside handler ?*/ /* got interrupt, dispatch to ISA or keyboard/timer IRQs */ |