diff options
author | Jeff Garzik <jgarzik@pobox.com> | 2005-10-06 05:51:07 -0400 |
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committer | Jeff Garzik <jgarzik@pobox.com> | 2005-10-06 05:51:07 -0400 |
commit | 012e060c95e547eceea4a12c6f58592473bf4011 (patch) | |
tree | b57d3eafb50ce517577d2cf366c9ef0b4b286589 /arch/sparc64/kernel/ptrace.c | |
parent | 923f122573851d18a3832ca808269fa2d5046fb1 (diff) | |
parent | ed39f731ab2e77e58122232f6e27333331d7793d (diff) |
Merge branch 'master'
Diffstat (limited to 'arch/sparc64/kernel/ptrace.c')
-rw-r--r-- | arch/sparc64/kernel/ptrace.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c index 23ad839d113..774ecbb8a03 100644 --- a/arch/sparc64/kernel/ptrace.c +++ b/arch/sparc64/kernel/ptrace.c @@ -30,6 +30,8 @@ #include <asm/psrcompat.h> #include <asm/visasm.h> #include <asm/spitfire.h> +#include <asm/page.h> +#include <asm/cpudata.h> /* Returning from ptrace is a bit tricky because the syscall return * low level code assumes any value returned which is negative and @@ -128,20 +130,24 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page, * is mapped to in the user's address space, we can skip the * D-cache flush. */ - if ((uaddr ^ kaddr) & (1UL << 13)) { + if ((uaddr ^ (unsigned long) kaddr) & (1UL << 13)) { unsigned long start = __pa(kaddr); unsigned long end = start + len; + unsigned long dcache_line_size; + + dcache_line_size = local_cpu_data().dcache_line_size; if (tlb_type == spitfire) { - for (; start < end; start += 32) - spitfire_put_dcache_tag(va & 0x3fe0, 0x0); + for (; start < end; start += dcache_line_size) + spitfire_put_dcache_tag(start & 0x3fe0, 0x0); } else { - for (; start < end; start += 32) + start &= ~(dcache_line_size - 1); + for (; start < end; start += dcache_line_size) __asm__ __volatile__( "stxa %%g0, [%0] %1\n\t" "membar #Sync" : /* no outputs */ - : "r" (va), + : "r" (start), "i" (ASI_DCACHE_INVALIDATE)); } } @@ -149,8 +155,11 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page, if (write && tlb_type == spitfire) { unsigned long start = (unsigned long) kaddr; unsigned long end = start + len; + unsigned long icache_line_size; + + icache_line_size = local_cpu_data().icache_line_size; - for (; start < end; start += 32) + for (; start < end; start += icache_line_size) flushi(start); } } |