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Roland Dreier 8b150478ae [PATCH] ppc: make phys_mem_access_prot() work with pfns instead of addresses ... Change the phys_mem_access_prot() function to take a pfn instead of an address. This allows mmap64() to work on /dev/mem for addresses above 4G on 32-bit architectures. We start with a pfn in mmap_mem(), so there's no need to convert to an address; in fact, it's actively bad, since the conversion can overflow when the address is above 4G. Similarly fix the ppc32 page_is_ram() function to avoid a conversion to an address by directly comparing to max_pfn. Working with max_pfn instead of high_memory fixes page_is_ram() to give the right answer for highmem pages. Signed-off-by: Roland Dreier <rolandd@cisco.com> Cc: Anton Blanchard <anton@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>		20 years ago
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boot	[PATCH] PPC64: large INITRD causes kernel not to boot	20 years ago
configs	[PATCH] ppc64: update defconfigs	20 years ago
kernel	[PATCH] ppc: make phys_mem_access_prot() work with pfns instead of addresses	20 years ago
lib	ppc64: use mem_64.S from powerpc/lib	20 years ago
xmon	powerpc: Merge xmon	20 years ago
Kconfig	[PATCH] powerpc: Fix handling of fpscr on 64-bit	20 years ago
Kconfig.debug	…
Makefile	[PATCH] ppc: prevent GCC 4 from generating AltiVec instructions in kernel	20 years ago
defconfig	[PATCH] ppc64: update defconfigs	20 years ago