diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/boot/edd.c | 54 | ||||
| -rw-r--r-- | arch/i386/boot/video.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/boot/flatdevtree.c | 18 | ||||
| -rw-r--r-- | arch/powerpc/kernel/Makefile | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/misc_32.S | 12 | ||||
| -rw-r--r-- | arch/powerpc/mm/hash_utils_64.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/spu_syscalls.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/platforms/ps3/device-init.c | 2 | ||||
| -rw-r--r-- | arch/ppc/kernel/misc.S | 12 |
9 files changed, 39 insertions, 65 deletions
diff --git a/arch/i386/boot/edd.c b/arch/i386/boot/edd.c index 658834d9f92..82b5c846a19 100644 --- a/arch/i386/boot/edd.c +++ b/arch/i386/boot/edd.c @@ -19,40 +19,12 @@ #if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE) -struct edd_dapa { - u8 pkt_size; - u8 rsvd; - u16 sector_cnt; - u16 buf_off, buf_seg; - u64 lba; - u64 buf_lin_addr; -}; - /* * Read the MBR (first sector) from a specific device. */ static int read_mbr(u8 devno, void *buf) { - struct edd_dapa dapa; - u16 ax, bx, cx, dx, si; - - memset(&dapa, 0, sizeof dapa); - dapa.pkt_size = sizeof(dapa); - dapa.sector_cnt = 1; - dapa.buf_off = (size_t)buf; - dapa.buf_seg = ds(); - /* dapa.lba = 0; */ - - ax = 0x4200; /* Extended Read */ - si = (size_t)&dapa; - dx = devno; - asm("pushfl; stc; int $0x13; setc %%al; popfl" - : "+a" (ax), "+S" (si), "+d" (dx) - : "m" (dapa) - : "ebx", "ecx", "edi", "memory"); - - if (!(u8)ax) - return 0; /* OK */ + u16 ax, bx, cx, dx; ax = 0x0201; /* Legacy Read, one sector */ cx = 0x0001; /* Sector 0-0-1 */ @@ -65,11 +37,10 @@ static int read_mbr(u8 devno, void *buf) return -(u8)ax; /* 0 or -1 */ } -static u32 read_mbr_sig(u8 devno, struct edd_info *ei) +static u32 read_mbr_sig(u8 devno, struct edd_info *ei, u32 *mbrsig) { int sector_size; char *mbrbuf_ptr, *mbrbuf_end; - u32 mbrsig; u32 buf_base, mbr_base; extern char _end[]; @@ -85,15 +56,15 @@ static u32 read_mbr_sig(u8 devno, struct edd_info *ei) /* Make sure we actually have space on the heap... */ if (!(boot_params.hdr.loadflags & CAN_USE_HEAP)) - return 0; + return -1; if (mbrbuf_end > (char *)(size_t)boot_params.hdr.heap_end_ptr) - return 0; + return -1; if (read_mbr(devno, mbrbuf_ptr)) - return 0; + return -1; - mbrsig = *(u32 *)&mbrbuf_ptr[EDD_MBR_SIG_OFFSET]; - return mbrsig; + *mbrsig = *(u32 *)&mbrbuf_ptr[EDD_MBR_SIG_OFFSET]; + return 0; } static int get_edd_info(u8 devno, struct edd_info *ei) @@ -160,6 +131,7 @@ void query_edd(void) int do_edd = 1; int devno; struct edd_info ei, *edp; + u32 *mbrptr; if (cmdline_find_option("edd", eddarg, sizeof eddarg) > 0) { if (!strcmp(eddarg, "skipmbr") || !strcmp(eddarg, "skip")) @@ -168,7 +140,8 @@ void query_edd(void) do_edd = 0; } - edp = (struct edd_info *)boot_params.eddbuf; + edp = boot_params.eddbuf; + mbrptr = boot_params.edd_mbr_sig_buffer; if (!do_edd) return; @@ -186,11 +159,8 @@ void query_edd(void) boot_params.eddbuf_entries++; } - if (do_mbr) { - u32 mbr_sig; - mbr_sig = read_mbr_sig(devno, &ei); - boot_params.edd_mbr_sig_buffer[devno-0x80] = mbr_sig; - } + if (do_mbr && !read_mbr_sig(devno, &ei, mbrptr++)) + boot_params.edd_mbr_sig_buf_entries = devno-0x80+1; } } diff --git a/arch/i386/boot/video.c b/arch/i386/boot/video.c index 958130ef004..693f20d3102 100644 --- a/arch/i386/boot/video.c +++ b/arch/i386/boot/video.c @@ -61,7 +61,7 @@ static void store_video_mode(void) /* Not all BIOSes are clean with respect to the top bit */ boot_params.screen_info.orig_video_mode = ax & 0x7f; - boot_params.screen_info.orig_video_page = page; + boot_params.screen_info.orig_video_page = page >> 8; } /* diff --git a/arch/powerpc/boot/flatdevtree.c b/arch/powerpc/boot/flatdevtree.c index b732644788d..13761bf160c 100644 --- a/arch/powerpc/boot/flatdevtree.c +++ b/arch/powerpc/boot/flatdevtree.c @@ -134,20 +134,6 @@ static char *ft_next(struct ft_cxt *cxt, char *p, struct ft_atom *ret) #define HDR_SIZE _ALIGN(sizeof(struct boot_param_header), 8) #define EXPAND_INCR 1024 /* alloc this much extra when expanding */ -/* See if the regions are in the standard order and non-overlapping */ -static int ft_ordered(struct ft_cxt *cxt) -{ - char *p = (char *)cxt->bph + HDR_SIZE; - enum ft_rgn_id r; - - for (r = FT_RSVMAP; r <= FT_STRINGS; ++r) { - if (p > cxt->rgn[r].start) - return 0; - p = cxt->rgn[r].start + cxt->rgn[r].size; - } - return p <= (char *)cxt->bph + cxt->max_size; -} - /* Copy the tree to a newly-allocated region and put things in order */ static int ft_reorder(struct ft_cxt *cxt, int nextra) { @@ -573,10 +559,6 @@ int ft_open(struct ft_cxt *cxt, void *blob, unsigned int max_size, cxt->rgn[FT_STRUCT].size = struct_size(cxt); cxt->rgn[FT_STRINGS].start = blob + be32_to_cpu(bph->off_dt_strings); cxt->rgn[FT_STRINGS].size = be32_to_cpu(bph->dt_strings_size); - /* Leave as '0' to force first ft_make_space call to do a ft_reorder - * and move dt to an area allocated by realloc. - cxt->isordered = ft_ordered(cxt); - */ cxt->p = cxt->rgn[FT_STRUCT].start; cxt->str_anchor = cxt->rgn[FT_STRINGS].start; diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index f39a72f30aa..b0cb2e662c2 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -81,6 +81,7 @@ obj-y += iomap.o endif ifeq ($(CONFIG_PPC_ISERIES),y) +CFLAGS_lparmap.s += -g0 extra-y += lparmap.s $(obj)/head_64.o: $(obj)/lparmap.s AFLAGS_head_64.o += -I$(obj) diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index e708ab7ca9e..8533de50347 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -301,9 +301,19 @@ _GLOBAL(_tlbie) mfspr r4,SPRN_MMUCR mfspr r5,SPRN_PID /* Get PID */ rlwimi r4,r5,0,24,31 /* Set TID */ - mtspr SPRN_MMUCR,r4 + /* We have to run the search with interrupts disabled, even critical + * and debug interrupts (in fact the only critical exceptions we have + * are debug and machine check). Otherwise an interrupt which causes + * a TLB miss can clobber the MMUCR between the mtspr and the tlbsx. */ + mfmsr r5 + lis r6,(MSR_EE|MSR_CE|MSR_ME|MSR_DE)@ha + addi r6,r6,(MSR_EE|MSR_CE|MSR_ME|MSR_DE)@l + andc r6,r5,r6 + mtmsr r6 + mtspr SPRN_MMUCR,r4 tlbsx. r3, 0, r3 + mtmsr r5 bne 10f sync /* There are only 64 TLB entries, so r3 < 64, diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index f1789578747..a47151e806c 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -795,7 +795,7 @@ void hash_preload(struct mm_struct *mm, unsigned long ea, #ifdef CONFIG_PPC_MM_SLICES /* We only prefault standard pages for now */ - if (unlikely(get_slice_psize(mm, ea) != mm->context.user_psize)); + if (unlikely(get_slice_psize(mm, ea) != mm->context.user_psize)) return; #endif diff --git a/arch/powerpc/platforms/cell/spu_syscalls.c b/arch/powerpc/platforms/cell/spu_syscalls.c index dd2c6688c8a..027ac32cc63 100644 --- a/arch/powerpc/platforms/cell/spu_syscalls.c +++ b/arch/powerpc/platforms/cell/spu_syscalls.c @@ -45,6 +45,7 @@ asmlinkage long sys_spu_create(const char __user *name, if (owner && try_module_get(owner)) { if (flags & SPU_CREATE_AFFINITY_SPU) { neighbor = fget_light(neighbor_fd, &fput_needed); + ret = -EBADF; if (neighbor) { ret = spufs_calls.create_thread(name, flags, mode, neighbor); diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c index e23a5a874ad..ce15cada88d 100644 --- a/arch/powerpc/platforms/ps3/device-init.c +++ b/arch/powerpc/platforms/ps3/device-init.c @@ -372,7 +372,7 @@ static int ps3_storage_wait_for_device(const struct ps3_repository_device *repo) notify_event->dev_type == repo->dev_type) { pr_debug("%s:%u: device ready: dev_id %u\n", __func__, __LINE__, repo->dev_id); - result = 0; + error = 0; break; } diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S index 0da55368655..a22e1f4d94c 100644 --- a/arch/ppc/kernel/misc.S +++ b/arch/ppc/kernel/misc.S @@ -237,9 +237,19 @@ _GLOBAL(_tlbie) mfspr r4,SPRN_MMUCR mfspr r5,SPRN_PID /* Get PID */ rlwimi r4,r5,0,24,31 /* Set TID */ - mtspr SPRN_MMUCR,r4 + /* We have to run the search with interrupts disabled, even critical + * and debug interrupts (in fact the only critical exceptions we have + * are debug and machine check). Otherwise an interrupt which causes + * a TLB miss can clobber the MMUCR between the mtspr and the tlbsx. */ + mfmsr r5 + lis r6,(MSR_EE|MSR_CE|MSR_ME|MSR_DE)@ha + addi r6,r6,(MSR_EE|MSR_CE|MSR_ME|MSR_DE)@l + andc r6,r5,r6 + mtmsr r6 + mtspr SPRN_MMUCR,r4 tlbsx. r3, 0, r3 + mtmsr r5 bne 10f sync /* There are only 64 TLB entries, so r3 < 64, |