From 163f6876f5c3ff8215e900b93779e960a56b3694 Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Fri, 15 Aug 2008 00:40:22 -0700 Subject: kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE Rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE, because control page is used for not only code on some platform. For example in kexec jump, it is used for data and stack too. [akpm@linux-foundation.org: unbreak powerpc and arm, finish conversion] Signed-off-by: Huang Ying Cc: Pavel Machek Cc: "Rafael J. Wysocki" Cc: "Eric W. Biederman" Cc: Vivek Goyal Cc: Ingo Molnar Cc: Russell King Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/kernel/machine_kexec_32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/machine_kexec_32.c b/arch/powerpc/kernel/machine_kexec_32.c index cbaa3419679..ae63a964b85 100644 --- a/arch/powerpc/kernel/machine_kexec_32.c +++ b/arch/powerpc/kernel/machine_kexec_32.c @@ -51,7 +51,7 @@ void default_machine_kexec(struct kimage *image) relocate_new_kernel_size); flush_icache_range(reboot_code_buffer, - reboot_code_buffer + KEXEC_CONTROL_CODE_SIZE); + reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE); printk(KERN_INFO "Bye!\n"); /* now call it */ -- cgit v1.2.3 From 9acd57ca74b12bc8ba8da12c72b19ede2cddcb53 Mon Sep 17 00:00:00 2001 From: Rocky Craig Date: Thu, 14 Aug 2008 23:11:54 +1000 Subject: powerpc: Fix TLB invalidation on boot on 32-bit The intent of "flush_tlbs" is to invalidate all TLB entries by doing a TLB invalidate instruction for all pages in the address range 0 to 0x00400000. A loop counter is set up at the high value and decremented by page size. However, the loop is only done once as the sense of the conditional branch at the loop end does not match the setup/decrement. This fixes it to do the whole range by correcting the branch condition. Signed-off-by: Rocky Craig Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/head_32.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index 99ee2f0f0f2..8bb65751929 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -1155,7 +1155,7 @@ flush_tlbs: lis r10, 0x40 1: addic. r10, r10, -0x1000 tlbie r10 - blt 1b + bgt 1b sync blr -- cgit v1.2.3 From ac22429df22c1c793245c3cca33ccde4046d9c1f Mon Sep 17 00:00:00 2001 From: Robert Jennings Date: Sat, 16 Aug 2008 05:10:18 +1000 Subject: powerpc: Add CMO enabled flag and paging space data to lparcfg Add a field in lparcfg output to indicate whether the kernel is running on a dedicated or shared memory lpar. Added fields to show the paging space pool IDs and the CMO page size. Submitted-by: Robert Jennings Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/lparcfg.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c index 1a09719c762..b3eef30b513 100644 --- a/arch/powerpc/kernel/lparcfg.c +++ b/arch/powerpc/kernel/lparcfg.c @@ -416,6 +416,8 @@ static void pseries_cmo_data(struct seq_file *m) unsigned long cmo_faults = 0; unsigned long cmo_fault_time = 0; + seq_printf(m, "cmo_enabled=%d\n", firmware_has_feature(FW_FEATURE_CMO)); + if (!firmware_has_feature(FW_FEATURE_CMO)) return; @@ -427,6 +429,9 @@ static void pseries_cmo_data(struct seq_file *m) seq_printf(m, "cmo_faults=%lu\n", cmo_faults); seq_printf(m, "cmo_fault_time_usec=%lu\n", cmo_fault_time / tb_ticks_per_usec); + seq_printf(m, "cmo_primary_psp=%d\n", cmo_get_primary_psp()); + seq_printf(m, "cmo_secondary_psp=%d\n", cmo_get_secondary_psp()); + seq_printf(m, "cmo_page_size=%lu\n", cmo_get_page_size()); } static int pseries_lparcfg_data(struct seq_file *m, void *v) -- cgit v1.2.3 From b9754568ef173cc8dbe4145c3aa44203a4424692 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Sat, 16 Aug 2008 13:56:44 +1000 Subject: powerpc: Remove dead module_find_bug code Doing some various "make randconfig", I came across an error when CONFIG_BUG was not set: arch/powerpc/kernel/module.c: In function 'module_find_bug': arch/powerpc/kernel/module.c:111: error: increment of pointer to unknown structure arch/powerpc/kernel/module.c:111: error: arithmetic on pointer to an incomplete type arch/powerpc/kernel/module.c:112: error: dereferencing pointer to incomplete type Looking further into this, I found that module_find_bug, defined in powerpc arch code, is not called anywhere, so this just removes it. There is a static module_find_bug in lib/bug.c but that is a separate issue. Signed-off-by: Steven Rostedt Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/module.c | 15 --------------- 1 file changed, 15 deletions(-) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/module.c b/arch/powerpc/kernel/module.c index af07003573c..7ff29247526 100644 --- a/arch/powerpc/kernel/module.c +++ b/arch/powerpc/kernel/module.c @@ -99,18 +99,3 @@ void module_arch_cleanup(struct module *mod) { module_bug_cleanup(mod); } - -struct bug_entry *module_find_bug(unsigned long bugaddr) -{ - struct mod_arch_specific *mod; - unsigned int i; - struct bug_entry *bug; - - list_for_each_entry(mod, &module_bug_list, bug_list) { - bug = mod->bug_table; - for (i = 0; i < mod->num_bugs; ++i, ++bug) - if (bugaddr == bug->bug_addr) - return bug; - } - return NULL; -} -- cgit v1.2.3 From d9178f4c14c3215fec66d326fcaff74262336aed Mon Sep 17 00:00:00 2001 From: Paul Collins Date: Sat, 16 Aug 2008 18:55:54 +1000 Subject: powerpc/kexec: Fix up KEXEC_CONTROL_CODE_SIZE missed during conversion Commit 163f6876f5c3ff8215e900b93779e960a56b3694 missed one, resulting in the following compile error: AS arch/powerpc/kernel/misc_32.o arch/powerpc/kernel/misc_32.S: Assembler messages: arch/powerpc/kernel/misc_32.S:902: Error: unsupported relocation against KEXEC_CONTROL_CODE_SIZE make[2]: *** [arch/powerpc/kernel/misc_32.o] Error 1 make[1]: *** [arch/powerpc/kernel] Error 2 make: *** [vmlinux] Error 2 I grepped arch/ and found no further instances. Signed-off-by: Paul Collins Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/misc_32.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 6321ae36f72..7a6dfbca768 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -899,7 +899,7 @@ relocate_new_kernel: /* set a new stack at the bottom of our page... */ /* (not really needed now) */ - addi r1, r4, KEXEC_CONTROL_CODE_SIZE - 8 /* for LR Save+Back Chain */ + addi r1, r4, KEXEC_CONTROL_PAGE_SIZE - 8 /* for LR Save+Back Chain */ stw r0, 0(r1) /* Do the copies */ -- cgit v1.2.3 From 50d0b17645a26d2877c9d5538114498c3f82adac Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 17 Aug 2008 03:57:30 +1000 Subject: powerpc: Use generic compat_sys_old_readdir Use the generic compat_sys_old_readdir instead of the powerpc one which is almost the same except for the almost complete lack of error handling. Note that we can't just use SYSCALL() in systbl.h because the native syscall is named old_readdir, not sys_old_readdir. Signed-off-by: Christoph Hellwig Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/sys_ppc32.c | 57 ----------------------------------------- 1 file changed, 57 deletions(-) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c index 709f8cb8bfc..d98634c7606 100644 --- a/arch/powerpc/kernel/sys_ppc32.c +++ b/arch/powerpc/kernel/sys_ppc32.c @@ -52,63 +52,6 @@ #include #include -struct old_linux_dirent32 { - u32 d_ino; - u32 d_offset; - unsigned short d_namlen; - char d_name[1]; -}; - -struct readdir_callback32 { - struct old_linux_dirent32 __user * dirent; - int count; -}; - -static int fillonedir(void * __buf, const char * name, int namlen, - off_t offset, u64 ino, unsigned int d_type) -{ - struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf; - struct old_linux_dirent32 __user * dirent; - ino_t d_ino; - - if (buf->count) - return -EINVAL; - d_ino = ino; - if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) - return -EOVERFLOW; - buf->count++; - dirent = buf->dirent; - put_user(d_ino, &dirent->d_ino); - put_user(offset, &dirent->d_offset); - put_user(namlen, &dirent->d_namlen); - copy_to_user(dirent->d_name, name, namlen); - put_user(0, dirent->d_name + namlen); - return 0; -} - -asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 __user *dirent, unsigned int count) -{ - int error = -EBADF; - struct file * file; - struct readdir_callback32 buf; - - file = fget(fd); - if (!file) - goto out; - - buf.count = 0; - buf.dirent = dirent; - - error = vfs_readdir(file, (filldir_t)fillonedir, &buf); - if (error < 0) - goto out_putf; - error = buf.count; - -out_putf: - fput(file); -out: - return error; -} asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp, compat_ulong_t __user *outp, compat_ulong_t __user *exp, -- cgit v1.2.3 From 7230ced4925b07c259a62b515d8278c6bb1ad98c Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Thu, 31 Jul 2008 16:54:28 +1000 Subject: powerpc: Fix /dev/oldmem interface for kdump A change to __ioremap() broke reading /dev/oldmem because we're no longer able to ioremap pfn 0 (d177c207, "[PATCH] powerpc: IOMMU: don't ioremap null addresses"). We actually don't need to ioremap for anything that's part of the linear mapping, so just read it directly. Also make sure we're only reading one page or less at a time. Signed-off-by: Michael Ellerman Signed-off-by: Sachin Sant Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/crash_dump.c | 31 ++++++++++++++++++++++--------- 1 file changed, 22 insertions(+), 9 deletions(-) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/crash_dump.c b/arch/powerpc/kernel/crash_dump.c index e0debcca0bf..a323c9b32ee 100644 --- a/arch/powerpc/kernel/crash_dump.c +++ b/arch/powerpc/kernel/crash_dump.c @@ -86,6 +86,19 @@ static int __init parse_savemaxmem(char *p) } __setup("savemaxmem=", parse_savemaxmem); + +static size_t copy_oldmem_vaddr(void *vaddr, char *buf, size_t csize, + unsigned long offset, int userbuf) +{ + if (userbuf) { + if (copy_to_user((char __user *)buf, (vaddr + offset), csize)) + return -EFAULT; + } else + memcpy(buf, (vaddr + offset), csize); + + return csize; +} + /** * copy_oldmem_page - copy one page from "oldmem" * @pfn: page frame number to be copied @@ -107,16 +120,16 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf, if (!csize) return 0; - vaddr = __ioremap(pfn << PAGE_SHIFT, PAGE_SIZE, 0); + csize = min(csize, PAGE_SIZE); - if (userbuf) { - if (copy_to_user((char __user *)buf, (vaddr + offset), csize)) { - iounmap(vaddr); - return -EFAULT; - } - } else - memcpy(buf, (vaddr + offset), csize); + if (pfn < max_pfn) { + vaddr = __va(pfn << PAGE_SHIFT); + csize = copy_oldmem_vaddr(vaddr, buf, csize, offset, userbuf); + } else { + vaddr = __ioremap(pfn << PAGE_SHIFT, PAGE_SIZE, 0); + csize = copy_oldmem_vaddr(vaddr, buf, csize, offset, userbuf); + iounmap(vaddr); + } - iounmap(vaddr); return csize; } -- cgit v1.2.3 From 4589f1fe570c2c786b72eff146b2f168821882c6 Mon Sep 17 00:00:00 2001 From: Joachim Fenkes Date: Wed, 6 Aug 2008 00:30:18 +1000 Subject: powerpc/ibmebus: Restore "name" sysfs attribute on ibmebus devices Recent of_platform changes made of_bus_type_init() overwrite the bus type's .dev_attrs list, meaning that the "name" attribute that ibmebus devices previously had is no longer present. This is a user-visible regression which breaks the userspace eHCA support, since the eHCA userspace driver relies on the name attribute to check for valid adapters. This fixes it by providing the "name" attribute in the generic OF device code instead. Tested on POWER. Signed-off-by: Joachim Fenkes Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/ibmebus.c | 12 ------------ 1 file changed, 12 deletions(-) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c index 9d42eb57aea..a06362223f8 100644 --- a/arch/powerpc/kernel/ibmebus.c +++ b/arch/powerpc/kernel/ibmebus.c @@ -233,17 +233,6 @@ void ibmebus_free_irq(u32 ist, void *dev_id) } EXPORT_SYMBOL(ibmebus_free_irq); -static ssize_t name_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%s\n", to_of_device(dev)->node->name); -} - -static struct device_attribute ibmebus_dev_attrs[] = { - __ATTR_RO(name), - __ATTR_NULL -}; - static char *ibmebus_chomp(const char *in, size_t count) { char *out = kmalloc(count + 1, GFP_KERNEL); @@ -327,7 +316,6 @@ static struct bus_attribute ibmebus_bus_attrs[] = { struct bus_type ibmebus_bus_type = { .uevent = of_device_uevent, - .dev_attrs = ibmebus_dev_attrs, .bus_attrs = ibmebus_bus_attrs }; EXPORT_SYMBOL(ibmebus_bus_type); -- cgit v1.2.3 From cd5aeb9f6cf7ada6baa218e01b4299e201497cde Mon Sep 17 00:00:00 2001 From: Brian King Date: Wed, 13 Aug 2008 05:21:45 +1000 Subject: powerpc: Fix vio_bus_probe oops on probe error When CMO is enabled and booted on a non CMO system and the VIO device's probe function fails, an oops can result since vio_cmo_bus_remove is called when it should not. This fixes it by avoiding the vio_cmo_bus_remove call on platforms that don't implement CMO. cpu 0x0: Vector: 300 (Data Access) at [c00000000e13b3d0] pc: c000000000020d34: .vio_cmo_bus_remove+0xc0/0x1f4 lr: c000000000020ca4: .vio_cmo_bus_remove+0x30/0x1f4 sp: c00000000e13b650 msr: 8000000000009032 dar: 0 dsisr: 40000000 current = 0xc00000000e0566c0 paca = 0xc0000000006f9b80 pid = 2428, comm = modprobe enter ? for help [c00000000e13b6e0] c000000000021d94 .vio_bus_probe+0x2f8/0x33c [c00000000e13b7a0] c00000000029fc88 .driver_probe_device+0x13c/0x200 [c00000000e13b830] c00000000029fdac .__driver_attach+0x60/0xa4 [c00000000e13b8c0] c00000000029f050 .bus_for_each_dev+0x80/0xd8 [c00000000e13b980] c00000000029f9ec .driver_attach+0x28/0x40 [c00000000e13ba00] c00000000029f630 .bus_add_driver+0xd4/0x284 [c00000000e13baa0] c0000000002a01bc .driver_register+0xc4/0x198 [c00000000e13bb50] c00000000002168c .vio_register_driver+0x40/0x5c [c00000000e13bbe0] d0000000003b3f1c .ibmvfc_module_init+0x70/0x109c [ibmvfc] [c00000000e13bc70] c0000000000acf08 .sys_init_module+0x184c/0x1a10 [c00000000e13be30] c000000000008748 syscall_exit+0x0/0x40 Signed-off-by: Brian King Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/vio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index 22a3c33fd75..2750fbab197 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -1113,7 +1113,7 @@ static int vio_bus_probe(struct device *dev) return error; } error = viodrv->probe(viodev, id); - if (error) + if (error && firmware_has_feature(FW_FEATURE_CMO)) vio_cmo_bus_remove(viodev); } -- cgit v1.2.3 From 78fbc824ed8225edd80cdc57771d5ca4f7aae95e Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Thu, 28 Aug 2008 14:57:39 +1000 Subject: powerpc: Fix uninitialised variable in VSX alignment code This fixes an uninitialised variable in the VSX alignment code. It can cause warnings from GCC (noticed with gcc-4.1.1). Gcc is actually correct in this instance, and this bug could cause the alignment interrupt handler to send a SIGSEGV to the process on a legitimate access. Signed-off-by: Michael Neuling Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/align.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c index 367129789cc..5af4e9b2dbe 100644 --- a/arch/powerpc/kernel/align.c +++ b/arch/powerpc/kernel/align.c @@ -647,7 +647,7 @@ static int emulate_vsx(unsigned char __user *addr, unsigned int reg, unsigned int flags, unsigned int length) { char *ptr = (char *) ¤t->thread.TS_FPR(reg); - int ret; + int ret = 0; flush_vsx_to_thread(current); -- cgit v1.2.3 From 303996dace16894710a5291327eeb79afdb8ed12 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Tue, 2 Sep 2008 15:04:09 +1000 Subject: powerpc: Make sure _etext is after all kernel text This makes core_kernel_text() (and therefore kernel_text_address()) return the correct result. Currently all the __devinit routines (at least) will not be considered to be kernel text. This is just a quick fix for 2.6.27 - hopefully we will be able to fix this better in 2.6.28. Signed-off-by: Stephen Rothwell Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/vmlinux.lds.S | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index 4a8ce62fe11..9f6c1ca1739 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -66,11 +66,12 @@ SECTIONS __got2_end = .; #endif /* CONFIG_PPC32 */ - . = ALIGN(PAGE_SIZE); - _etext = .; - PROVIDE32 (etext = .); } :kernel + . = ALIGN(PAGE_SIZE); + _etext = .; + PROVIDE32 (etext = .); + /* Read-only data */ RODATA -- cgit v1.2.3 From 7563dc64585324f443f5ac107eb6d89ee813a2d2 Mon Sep 17 00:00:00 2001 From: Tony Breeds Date: Tue, 2 Sep 2008 16:50:38 +1000 Subject: powerpc: Work around gcc's -fno-omit-frame-pointer bug This bug is causing random crashes (http://bugzilla.kernel.org/show_bug.cgi?id=11414). -fno-omit-frame-pointer is only needed on powerpc when -pg is also supplied, and there is a gcc bug that causes incorrect code generation on 32-bit powerpc when -fno-omit-frame-pointer is used---it uses stack locations below the stack pointer, which is not allowed by the ABI because those locations can and sometimes do get corrupted by an interrupt. This ensures that CONFIG_FRAME_POINTER is only selected by ftrace. When CONFIG_FTRACE is enabled we also pass -mno-sched-epilog to work around the gcc codegen bug. Patch based on work by: Andreas Schwab Segher Boessenkool Signed-off-by: Tony Breeds Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/Makefile | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 64f5948ebc9..946daea780f 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -14,12 +14,13 @@ endif ifdef CONFIG_FTRACE # Do not trace early boot code -CFLAGS_REMOVE_cputable.o = -pg -CFLAGS_REMOVE_prom_init.o = -pg +CFLAGS_REMOVE_cputable.o = -pg -mno-sched-epilog +CFLAGS_REMOVE_prom_init.o = -pg -mno-sched-epilog +CFLAGS_REMOVE_btext.o = -pg -mno-sched-epilog ifdef CONFIG_DYNAMIC_FTRACE # dynamic ftrace setup. -CFLAGS_REMOVE_ftrace.o = -pg +CFLAGS_REMOVE_ftrace.o = -pg -mno-sched-epilog endif endif -- cgit v1.2.3 From 7888bc2b4778fda267a6e6422c4497dba865a47a Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Tue, 26 Aug 2008 12:08:56 +1000 Subject: powerpc: Fix for getting CPU number in power_save_ppc32_restore() The calculation to get TI_CPU based off of SPRG3 was just plain wrong, meaning that we were getting garbage for the CPU number on 6xx/G3/G4 based SMP boxes in this code. Just offset off the stack pointer (to get to thread_info) like all the other references to TI_CPU do. This was pointed out by Chen Gong [paulus@samba.org - use rlwinm r12,r11,... instead of rlwinm r12,r1,...; tophys()] Signed-off-by: Kumar Gala Acked-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/idle_6xx.S | 2 +- arch/powerpc/kernel/idle_e500.S | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/idle_6xx.S b/arch/powerpc/kernel/idle_6xx.S index 019b02d8844..15c611de1ee 100644 --- a/arch/powerpc/kernel/idle_6xx.S +++ b/arch/powerpc/kernel/idle_6xx.S @@ -158,7 +158,7 @@ _GLOBAL(power_save_ppc32_restore) stw r9,_NIP(r11) /* make it do a blr */ #ifdef CONFIG_SMP - mfspr r12,SPRN_SPRG3 + rlwinm r12,r11,0,0,31-THREAD_SHIFT lwz r11,TI_CPU(r12) /* get cpu number * 4 */ slwi r11,r11,2 #else diff --git a/arch/powerpc/kernel/idle_e500.S b/arch/powerpc/kernel/idle_e500.S index 06304034b39..47a1a983ff8 100644 --- a/arch/powerpc/kernel/idle_e500.S +++ b/arch/powerpc/kernel/idle_e500.S @@ -84,10 +84,11 @@ _GLOBAL(power_save_ppc32_restore) stw r9,_NIP(r11) /* make it do a blr */ #ifdef CONFIG_SMP - mfspr r12,SPRN_SPRG3 + rlwinm r12,r1,0,0,31-THREAD_SHIFT lwz r11,TI_CPU(r12) /* get cpu number * 4 */ slwi r11,r11,2 #else li r11,0 #endif + b transfer_to_handler_cont -- cgit v1.2.3