diff options
Diffstat (limited to 'arch/ppc')
| -rw-r--r-- | arch/ppc/boot/lib/Makefile | 2 | ||||
| -rw-r--r-- | arch/ppc/kernel/asm-offsets.c | 1 | ||||
| -rw-r--r-- | arch/ppc/kernel/entry.S | 33 | ||||
| -rw-r--r-- | arch/ppc/syslib/ppc_sys.c | 9 |
4 files changed, 23 insertions, 22 deletions
diff --git a/arch/ppc/boot/lib/Makefile b/arch/ppc/boot/lib/Makefile index d4077e69086f..80c84d562fa4 100644 --- a/arch/ppc/boot/lib/Makefile +++ b/arch/ppc/boot/lib/Makefile @@ -3,7 +3,7 @@ # CFLAGS_kbd.o := -Idrivers/char -CFLAGS_vreset.o := -I$(srctree)/arch/ppc/boot/include +CFLAGS_vreset.o := -Iarch/ppc/boot/include zlib := infblock.c infcodes.c inffast.c inflate.c inftrees.c infutil.c diff --git a/arch/ppc/kernel/asm-offsets.c b/arch/ppc/kernel/asm-offsets.c index 77e4dc780f8c..cc7c4aea9397 100644 --- a/arch/ppc/kernel/asm-offsets.c +++ b/arch/ppc/kernel/asm-offsets.c @@ -134,6 +134,7 @@ main(void) DEFINE(TI_TASK, offsetof(struct thread_info, task)); DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain)); DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); + DEFINE(TI_LOCAL_FLAGS, offsetof(struct thread_info, flags)); DEFINE(TI_CPU, offsetof(struct thread_info, cpu)); DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count)); diff --git a/arch/ppc/kernel/entry.S b/arch/ppc/kernel/entry.S index 5891ecbdc703..1adc9145516f 100644 --- a/arch/ppc/kernel/entry.S +++ b/arch/ppc/kernel/entry.S @@ -128,29 +128,26 @@ transfer_to_handler: stw r12,4(r11) #endif b 3f + 2: /* if from kernel, check interrupted DOZE/NAP mode and * check for stack overflow */ + lwz r9,THREAD_INFO-THREAD(r12) + cmplw r1,r9 /* if r1 <= current->thread_info */ + ble- stack_ovf /* then the kernel stack overflowed */ +5: #ifdef CONFIG_6xx - mfspr r11,SPRN_HID0 - mtcr r11 -BEGIN_FTR_SECTION - bt- 8,4f /* Check DOZE */ -END_FTR_SECTION_IFSET(CPU_FTR_CAN_DOZE) -BEGIN_FTR_SECTION - bt- 9,4f /* Check NAP */ -END_FTR_SECTION_IFSET(CPU_FTR_CAN_NAP) + tophys(r9,r9) /* check local flags */ + lwz r12,TI_LOCAL_FLAGS(r9) + mtcrf 0x01,r12 + bt- 31-TLF_NAPPING,4f #endif /* CONFIG_6xx */ .globl transfer_to_handler_cont transfer_to_handler_cont: - lwz r11,THREAD_INFO-THREAD(r12) - cmplw r1,r11 /* if r1 <= current->thread_info */ - ble- stack_ovf /* then the kernel stack overflowed */ 3: mflr r9 lwz r11,0(r9) /* virtual address of handler */ lwz r9,4(r9) /* where to go when done */ - FIX_SRR1(r10,r12) mtspr SPRN_SRR0,r11 mtspr SPRN_SRR1,r10 mtlr r9 @@ -158,7 +155,9 @@ transfer_to_handler_cont: RFI /* jump to handler, enable MMU */ #ifdef CONFIG_6xx -4: b power_save_6xx_restore +4: rlwinm r12,r12,0,~_TLF_NAPPING + stw r12,TI_LOCAL_FLAGS(r9) + b power_save_6xx_restore #endif /* @@ -167,10 +166,10 @@ transfer_to_handler_cont: */ stack_ovf: /* sometimes we use a statically-allocated stack, which is OK. */ - lis r11,_end@h - ori r11,r11,_end@l - cmplw r1,r11 - ble 3b /* r1 <= &_end is OK */ + lis r12,_end@h + ori r12,r12,_end@l + cmplw r1,r12 + ble 5b /* r1 <= &_end is OK */ SAVE_NVGPRS(r11) addi r3,r1,STACK_FRAME_OVERHEAD lis r1,init_thread_union@ha diff --git a/arch/ppc/syslib/ppc_sys.c b/arch/ppc/syslib/ppc_sys.c index 60c724e11584..7662c4e6e7d6 100644 --- a/arch/ppc/syslib/ppc_sys.c +++ b/arch/ppc/syslib/ppc_sys.c @@ -156,12 +156,13 @@ void platform_notify_map(const struct platform_notify_dev_map *map, while (map->bus_id != NULL) { idx = -1; s = strrchr(dev->bus_id, '.'); - if (s != NULL) + if (s != NULL) { idx = (int)simple_strtol(s + 1, NULL, 10); - else + len = s - dev->bus_id; + } else { s = dev->bus_id; - - len = s - dev->bus_id; + len = strlen(dev->bus_id); + } if (!strncmp(dev->bus_id, map->bus_id, len)) { pdev = container_of(dev, struct platform_device, dev); |
