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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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4
arch/powerpc/kernel/head_fsl_booke.S
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@@ -767,10 +767,10 @@ finish_tlb_load:
rlwimi r12, r13, 24, 0, 7 /* grab RPN[32:39] */
rlwimi r12, r11, 24, 8, 19 /* grab RPN[40:51] */
mtspr SPRN_MAS3, r12
BEGIN_FTR_SECTION
BEGIN_MMU_FTR_SECTION
srwi r10, r13, 8 /* grab RPN[8:31] */
mtspr SPRN_MAS7, r10
END_FTR_SECTION_IFSET(CPU_FTR_BIG_PHYS)
END_MMU_FTR_SECTION_IFSET(MMU_FTR_BIG_PHYS)
#else
rlwimi r11, r12, 0, 20, 31 /* Extract RPN from PTE and merge with perms */
mtspr SPRN_MAS3, r11