diff options
author | Rik van Riel <riel@redhat.com> | 2008-07-24 00:27:05 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-24 13:47:15 -0400 |
commit | 28b2ee20c7cba812b6f2ccf6d722cf86d00a84dc (patch) | |
tree | e8f1efd05c38c1cb26ca3ee051a454eb685fd122 /include/asm-x86/io_64.h | |
parent | 0d71d10a4252a3938e6b70189bc776171c02e076 (diff) |
access_process_vm device memory infrastructure
In order to be able to debug things like the X server and programs using
the PPC Cell SPUs, the debugger needs to be able to access device memory
through ptrace and /proc/pid/mem.
This patch:
Add the generic_access_phys access function and put the hooks in place
to allow access_process_vm to access device or PPC Cell SPU memory.
[riel@redhat.com: Add documentation for the vm_ops->access function]
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Benjamin Herrensmidt <benh@kernel.crashing.org>
Cc: Dave Airlie <airlied@linux.ie>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-x86/io_64.h')
-rw-r--r-- | include/asm-x86/io_64.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-x86/io_64.h b/include/asm-x86/io_64.h index ddd8058a502..22995c5c5ad 100644 --- a/include/asm-x86/io_64.h +++ b/include/asm-x86/io_64.h | |||
@@ -175,6 +175,8 @@ extern void early_iounmap(void *addr, unsigned long size); | |||
175 | */ | 175 | */ |
176 | extern void __iomem *ioremap_nocache(resource_size_t offset, unsigned long size); | 176 | extern void __iomem *ioremap_nocache(resource_size_t offset, unsigned long size); |
177 | extern void __iomem *ioremap_cache(resource_size_t offset, unsigned long size); | 177 | extern void __iomem *ioremap_cache(resource_size_t offset, unsigned long size); |
178 | extern void __iomem *ioremap_prot(resource_size_t offset, unsigned long size, | ||
179 | unsigned long prot_val); | ||
178 | 180 | ||
179 | /* | 181 | /* |
180 | * The default ioremap() behavior is non-cached: | 182 | * The default ioremap() behavior is non-cached: |