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powerpc/mm: Introduce MMU features

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We're soon running out of CPU features and I need to add some new
ones for various MMU related bits, so this patch separates the MMU
features from the CPU features.  I moved over the 32-bit MMU related
ones, added base features for MMU type families, but didn't move
over any 64-bit only feature yet.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Benjamin Herrenschmidt
2008-12-18 19:13:32 +00:00
committed by Paul Mackerras
parent 2ca8cf7389
commit 7c03d653cd
16 changed files with 268 additions and 60 deletions
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5
arch/powerpc/platforms/powermac/sleep.S
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@@ -17,6 +17,7 @@
#include <asm/cache.h>
#include <asm/thread_info.h>
#include <asm/asm-offsets.h>
#include <asm/mmu.h>
#define MAGIC 0x4c617273 /* 'Lars' */
@@ -323,7 +324,7 @@ grackle_wake_up:
lwz r4,SL_IBAT3+4(r1)
mtibatl 3,r4
BEGIN_FTR_SECTION
BEGIN_MMU_FTR_SECTION
li r4,0
mtspr SPRN_DBAT4U,r4
mtspr SPRN_DBAT4L,r4
@@ -341,7 +342,7 @@ BEGIN_FTR_SECTION
mtspr SPRN_IBAT6L,r4
mtspr SPRN_IBAT7U,r4
mtspr SPRN_IBAT7L,r4
END_FTR_SECTION_IFSET(CPU_FTR_HAS_HIGH_BATS)
END_MMU_FTR_SECTION_IFSET(MMU_FTR_USE_HIGH_BATS)
/* Flush all TLBs */
lis r4,0x1000