Subject: + x86-use-generic-fixmaph.patch added to -mm tree To: msalter@xxxxxxxxxx,hpa@xxxxxxxxx,mingo@xxxxxxxxxx,tglx@xxxxxxxxxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Mon, 16 Dec 2013 11:55:54 -0800 The patch titled Subject: x86: use generic fixmap.h has been added to the -mm tree. Its filename is x86-use-generic-fixmaph.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/x86-use-generic-fixmaph.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/x86-use-generic-fixmaph.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Mark Salter <msalter@xxxxxxxxxx> Subject: x86: use generic fixmap.h Signed-off-by: Mark Salter <msalter@xxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/x86/include/asm/fixmap.h | 59 -------------------------------- 1 file changed, 1 insertion(+), 58 deletions(-) diff -puN arch/x86/include/asm/fixmap.h~x86-use-generic-fixmaph arch/x86/include/asm/fixmap.h --- a/arch/x86/include/asm/fixmap.h~x86-use-generic-fixmaph +++ a/arch/x86/include/asm/fixmap.h @@ -175,64 +175,7 @@ static inline void __set_fixmap(enum fix } #endif -#define set_fixmap(idx, phys) \ - __set_fixmap(idx, phys, PAGE_KERNEL) - -/* - * Some hardware wants to get fixmapped without caching. - */ -#define set_fixmap_nocache(idx, phys) \ - __set_fixmap(idx, phys, PAGE_KERNEL_NOCACHE) - -#define clear_fixmap(idx) \ - __set_fixmap(idx, 0, __pgprot(0)) - -#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT)) -#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT) - -extern void __this_fixmap_does_not_exist(void); - -/* - * 'index to address' translation. If anyone tries to use the idx - * directly without translation, we catch the bug with a NULL-deference - * kernel oops. Illegal ranges of incoming indices are caught too. - */ -static __always_inline unsigned long fix_to_virt(const unsigned int idx) -{ - /* - * this branch gets completely eliminated after inlining, - * except when someone tries to use fixaddr indices in an - * illegal way. (such as mixing up address types or using - * out-of-range indices). - * - * If it doesn't get removed, the linker will complain - * loudly with a reasonably clear error message.. - */ - if (idx >= __end_of_fixed_addresses) - __this_fixmap_does_not_exist(); - - return __fix_to_virt(idx); -} - -static inline unsigned long virt_to_fix(const unsigned long vaddr) -{ - BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START); - return __virt_to_fix(vaddr); -} - -/* Return an pointer with offset calculated */ -static __always_inline unsigned long -__set_fixmap_offset(enum fixed_addresses idx, phys_addr_t phys, pgprot_t flags) -{ - __set_fixmap(idx, phys, flags); - return fix_to_virt(idx) + (phys & (PAGE_SIZE - 1)); -} - -#define set_fixmap_offset(idx, phys) \ - __set_fixmap_offset(idx, phys, PAGE_KERNEL) - -#define set_fixmap_offset_nocache(idx, phys) \ - __set_fixmap_offset(idx, phys, PAGE_KERNEL_NOCACHE) +#include <asm-generic/fixmap.h> #endif /* !__ASSEMBLY__ */ #endif /* _ASM_X86_FIXMAP_H */ _ Patches currently in -mm which might be from msalter@xxxxxxxxxx are add-generic-fixmaph.patch x86-use-generic-fixmaph.patch arm-use-generic-fixmaph.patch hexagon-use-generic-fixmaph.patch metag-use-generic-fixmaph.patch microblaze-use-generic-fixmaph.patch mips-use-generic-fixmaph.patch powerpc-use-generic-fixmaph.patch sh-use-generic-fixmaph.patch tile-use-generic-fixmaph.patch um-use-generic-fixmaph.patch linux-next.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html