diff options
Diffstat (limited to 'arch/powerpc/lib')
-rw-r--r-- | arch/powerpc/lib/alloc.c | 8 | ||||
-rw-r--r-- | arch/powerpc/lib/copypage_64.S | 7 | ||||
-rw-r--r-- | arch/powerpc/lib/devres.c | 6 | ||||
-rw-r--r-- | arch/powerpc/lib/sstep.c | 62 |
4 files changed, 35 insertions, 48 deletions
diff --git a/arch/powerpc/lib/alloc.c b/arch/powerpc/lib/alloc.c index f53e09c..13b676c 100644 --- a/arch/powerpc/lib/alloc.c +++ b/arch/powerpc/lib/alloc.c @@ -6,14 +6,6 @@ #include <asm/system.h> -void * __init_refok alloc_maybe_bootmem(size_t size, gfp_t mask) -{ - if (mem_init_done) - return kmalloc(size, mask); - else - return alloc_bootmem(size); -} - void * __init_refok zalloc_maybe_bootmem(size_t size, gfp_t mask) { void *p; diff --git a/arch/powerpc/lib/copypage_64.S b/arch/powerpc/lib/copypage_64.S index 4d4eeb9..53dcb6b 100644 --- a/arch/powerpc/lib/copypage_64.S +++ b/arch/powerpc/lib/copypage_64.S @@ -6,6 +6,7 @@ * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ +#include <asm/page.h> #include <asm/processor.h> #include <asm/ppc_asm.h> #include <asm/asm-offsets.h> @@ -15,9 +16,9 @@ PPC64_CACHES: .tc ppc64_caches[TC],ppc64_caches .section ".text" - -_GLOBAL(copy_4K_page) - li r5,4096 /* 4K page size */ +_GLOBAL(copy_page) + lis r5,PAGE_SIZE@h + ori r5,r5,PAGE_SIZE@l BEGIN_FTR_SECTION ld r10,PPC64_CACHES@toc(r2) lwz r11,DCACHEL1LOGLINESIZE(r10) /* log2 of cache line size */ diff --git a/arch/powerpc/lib/devres.c b/arch/powerpc/lib/devres.c index deac4d3..e91615a 100644 --- a/arch/powerpc/lib/devres.c +++ b/arch/powerpc/lib/devres.c @@ -9,11 +9,11 @@ #include <linux/device.h> /* devres_*(), devm_ioremap_release() */ #include <linux/gfp.h> -#include <linux/io.h> /* ioremap_flags() */ +#include <linux/io.h> /* ioremap_prot() */ #include <linux/module.h> /* EXPORT_SYMBOL() */ /** - * devm_ioremap_prot - Managed ioremap_flags() + * devm_ioremap_prot - Managed ioremap_prot() * @dev: Generic device to remap IO address for * @offset: BUS offset to map * @size: Size of map @@ -31,7 +31,7 @@ void __iomem *devm_ioremap_prot(struct device *dev, resource_size_t offset, if (!ptr) return NULL; - addr = ioremap_flags(offset, size, flags); + addr = ioremap_prot(offset, size, flags); if (addr) { *ptr = addr; devres_add(dev, ptr); diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c index ae5189a..9a52349 100644 --- a/arch/powerpc/lib/sstep.c +++ b/arch/powerpc/lib/sstep.c @@ -11,6 +11,7 @@ #include <linux/kernel.h> #include <linux/kprobes.h> #include <linux/ptrace.h> +#include <linux/prefetch.h> #include <asm/sstep.h> #include <asm/processor.h> #include <asm/uaccess.h> @@ -45,6 +46,18 @@ extern int do_stxvd2x(int rn, unsigned long ea); #endif /* + * Emulate the truncation of 64 bit values in 32-bit mode. + */ +static unsigned long truncate_if_32bit(unsigned long msr, unsigned long val) +{ +#ifdef __powerpc64__ + if ((msr & MSR_64BIT) == 0) + val &= 0xffffffffUL; +#endif + return val; +} + +/* * Determine whether a conditional branch instruction would branch. */ static int __kprobes branch_taken(unsigned int instr, struct pt_regs *regs) @@ -90,11 +103,8 @@ static unsigned long __kprobes dform_ea(unsigned int instr, struct pt_regs *regs if (instr & 0x04000000) /* update forms */ regs->gpr[ra] = ea; } -#ifdef __powerpc64__ - if (!(regs->msr & MSR_SF)) - ea &= 0xffffffffUL; -#endif - return ea; + + return truncate_if_32bit(regs->msr, ea); } #ifdef __powerpc64__ @@ -113,9 +123,8 @@ static unsigned long __kprobes dsform_ea(unsigned int instr, struct pt_regs *reg if ((instr & 3) == 1) /* update forms */ regs->gpr[ra] = ea; } - if (!(regs->msr & MSR_SF)) - ea &= 0xffffffffUL; - return ea; + + return truncate_if_32bit(regs->msr, ea); } #endif /* __powerpc64 */ @@ -136,11 +145,8 @@ static unsigned long __kprobes xform_ea(unsigned int instr, struct pt_regs *regs if (do_update) /* update forms */ regs->gpr[ra] = ea; } -#ifdef __powerpc64__ - if (!(regs->msr & MSR_SF)) - ea &= 0xffffffffUL; -#endif - return ea; + + return truncate_if_32bit(regs->msr, ea); } /* @@ -466,7 +472,7 @@ static void __kprobes set_cr0(struct pt_regs *regs, int rd) regs->ccr = (regs->ccr & 0x0fffffff) | ((regs->xer >> 3) & 0x10000000); #ifdef __powerpc64__ - if (!(regs->msr & MSR_SF)) + if (!(regs->msr & MSR_64BIT)) val = (int) val; #endif if (val < 0) @@ -487,7 +493,7 @@ static void __kprobes add_with_carry(struct pt_regs *regs, int rd, ++val; regs->gpr[rd] = val; #ifdef __powerpc64__ - if (!(regs->msr & MSR_SF)) { + if (!(regs->msr & MSR_64BIT)) { val = (unsigned int) val; val1 = (unsigned int) val1; } @@ -570,8 +576,7 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr) if ((instr & 2) == 0) imm += regs->nip; regs->nip += 4; - if ((regs->msr & MSR_SF) == 0) - regs->nip &= 0xffffffffUL; + regs->nip = truncate_if_32bit(regs->msr, regs->nip); if (instr & 1) regs->link = regs->nip; if (branch_taken(instr, regs)) @@ -604,13 +609,9 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr) imm -= 0x04000000; if ((instr & 2) == 0) imm += regs->nip; - if (instr & 1) { - regs->link = regs->nip + 4; - if ((regs->msr & MSR_SF) == 0) - regs->link &= 0xffffffffUL; - } - if ((regs->msr & MSR_SF) == 0) - imm &= 0xffffffffUL; + if (instr & 1) + regs->link = truncate_if_32bit(regs->msr, regs->nip + 4); + imm = truncate_if_32bit(regs->msr, imm); regs->nip = imm; return 1; case 19: @@ -618,11 +619,8 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr) case 16: /* bclr */ case 528: /* bcctr */ imm = (instr & 0x400)? regs->ctr: regs->link; - regs->nip += 4; - if ((regs->msr & MSR_SF) == 0) { - regs->nip &= 0xffffffffUL; - imm &= 0xffffffffUL; - } + regs->nip = truncate_if_32bit(regs->msr, regs->nip + 4); + imm = truncate_if_32bit(regs->msr, imm); if (instr & 1) regs->link = regs->nip; if (branch_taken(instr, regs)) @@ -1616,11 +1614,7 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr) return 0; /* invoke DSI if -EFAULT? */ } instr_done: - regs->nip += 4; -#ifdef __powerpc64__ - if ((regs->msr & MSR_SF) == 0) - regs->nip &= 0xffffffffUL; -#endif + regs->nip = truncate_if_32bit(regs->msr, regs->nip + 4); return 1; logical_done: |