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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-05 21:21:19 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-05 21:21:19 (GMT) |
| commit | 3331f99a6f2957d14c2e4d542c287b2c5af9f22b (patch) | |
| tree | 0896f06da2f2a9d8ee2e4af8261cf354e7c28cce /arch | |
| parent | 168309855a7d1e16db751e9c647119fe2d2dc878 (diff) | |
| parent | c1b27ab5d69099718f519127eea017120c180e71 (diff) | |
| download | linux-3331f99a6f2957d14c2e4d542c287b2c5af9f22b.tar.xz | |
Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull tile bugfix from Chris Metcalf:
"This fixes a bug that Sudip's buildbot found for tilepro allmodconfig.
I've tagged it for stable only back to 3.19, which was when most of
the other affected architectures added their support for working
around this issue"
* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
tile: provide CONFIG_PAGE_SIZE_64KB etc for tilepro
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/tile/Kconfig | 11 | ||||
| -rw-r--r-- | arch/tile/include/asm/page.h | 8 |
2 files changed, 10 insertions, 9 deletions
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 106c21b..8ec7a45 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -176,8 +176,6 @@ config NR_CPUS smaller kernel memory footprint results from using a smaller value on chips with fewer tiles. -if TILEGX - choice prompt "Kernel page size" default PAGE_SIZE_64KB @@ -188,8 +186,11 @@ choice connections, etc., it may be better to select 16KB, which uses memory more efficiently at some cost in TLB performance. - Note that this option is TILE-Gx specific; currently - TILEPro page size is set by rebuilding the hypervisor. + Note that for TILEPro, you must also rebuild the hypervisor + with a matching page size. + +config PAGE_SIZE_4KB + bool "4KB" if TILEPRO config PAGE_SIZE_16KB bool "16KB" @@ -199,8 +200,6 @@ config PAGE_SIZE_64KB endchoice -endif - source "kernel/Kconfig.hz" config KEXEC diff --git a/arch/tile/include/asm/page.h b/arch/tile/include/asm/page.h index a213a8d..8eca6a0 100644 --- a/arch/tile/include/asm/page.h +++ b/arch/tile/include/asm/page.h @@ -20,15 +20,17 @@ #include <arch/chip.h> /* PAGE_SHIFT and HPAGE_SHIFT determine the page sizes. */ -#if defined(CONFIG_PAGE_SIZE_16KB) +#if defined(CONFIG_PAGE_SIZE_4KB) /* tilepro only */ +#define PAGE_SHIFT 12 +#define CTX_PAGE_FLAG HV_CTX_PG_SM_4K +#elif defined(CONFIG_PAGE_SIZE_16KB) #define PAGE_SHIFT 14 #define CTX_PAGE_FLAG HV_CTX_PG_SM_16K #elif defined(CONFIG_PAGE_SIZE_64KB) #define PAGE_SHIFT 16 #define CTX_PAGE_FLAG HV_CTX_PG_SM_64K #else -#define PAGE_SHIFT HV_LOG2_DEFAULT_PAGE_SIZE_SMALL -#define CTX_PAGE_FLAG 0 +#error Page size not specified in Kconfig #endif #define HPAGE_SHIFT HV_LOG2_DEFAULT_PAGE_SIZE_LARGE |