| commit | d838270e2516db11084bed4e294017eb7b646a75 | [log] [tgz] |
|---|---|---|
| author | Toshi Kani <[email protected]> | Thu Jun 04 18:55:15 2015 +0200 |
| committer | Ingo Molnar <[email protected]> | Sun Jun 07 15:28:56 2015 +0200 |
| tree | 5c2beb8e62d8d37a379160522bd2040c7dade7f0 | |
| parent | ecb2febaaa3945e1578359adc30ca818e78540fb [diff] [blame] |
x86/mm, asm-generic: Add ioremap_wt() for creating Write-Through mappings Add ioremap_wt() for creating Write-Through mappings on x86. It follows the same model as ioremap_wc() for multi-arch support. Define ARCH_HAS_IOREMAP_WT in the x86 version of io.h to indicate that ioremap_wt() is implemented on x86. Also update the PAT documentation file to cover ioremap_wt(). Signed-off-by: Toshi Kani <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: [email protected] Cc: H. Peter Anvin <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Luis R. Rodriguez <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: linux-mm <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h index 1b41011..d8f8622 100644 --- a/include/asm-generic/iomap.h +++ b/include/asm-generic/iomap.h
@@ -66,6 +66,10 @@ #define ioremap_wc ioremap_nocache #endif +#ifndef ARCH_HAS_IOREMAP_WT +#define ioremap_wt ioremap_nocache +#endif + #ifdef CONFIG_PCI /* Destroy a virtual mapping cookie for a PCI BAR (memory or IO) */ struct pci_dev;