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[ARM] Update Xscale and Xscale3 PTE mappings 

Use 'shared device' mappings for devices, and use the standard
bit combinations for Xscale3.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2008-09-07 12:36:46 +01:00 committed by Russell King
parent 40d192b63d
commit 40df2d1d85
2 changed files with 7 additions and 9 deletions
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14
arch/arm/mm/proc-xsc3.S
View File

@ -345,23 +345,21 @@ ENTRY(cpu_xsc3_switch_mm)
* cpu_xsc3_set_pte_ext(ptep, pte, ext) * cpu_xsc3_set_pte_ext(ptep, pte, ext)
* *
* Set a PTE and flush it out * Set a PTE and flush it out
*
*/ */
cpu_xsc3_mt_table: cpu_xsc3_mt_table:
.long 0x00 @ L_PTE_MT_UNCACHED .long 0x00 @ L_PTE_MT_UNCACHED
.long PTE_BUFFERABLE @ L_PTE_MT_BUFFERABLE .long PTE_EXT_TEX(1) @ L_PTE_MT_BUFFERABLE
.long PTE_EXT_TEX(5) | PTE_CACHEABLE @ L_PTE_MT_WRITETHROUGH .long PTE_CACHEABLE @ L_PTE_MT_WRITETHROUGH
.long PTE_EXT_TEX(5) | PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_WRITEBACK .long PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_WRITEBACK
.long 0x00 @ L_PTE_MT_DEV_SHARED .long PTE_EXT_TEX(1) | PTE_BUFFERABLE @ L_PTE_MT_DEV_SHARED
.long 0x00 @ unused .long 0x00 @ unused
.long 0x00 @ L_PTE_MT_MINICACHE (not present) .long 0x00 @ L_PTE_MT_MINICACHE (not present)
.long PTE_EXT_TEX(5) | PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_WRITEALLOC (not present?) .long PTE_EXT_TEX(5) | PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_WRITEALLOC (not present?)
.long 0x00 @ unused .long 0x00 @ unused
.long PTE_EXT_TEX(1) @ L_PTE_MT_DEV_WC .long PTE_EXT_TEX(1) @ L_PTE_MT_DEV_WC
.long 0x00 @ unused .long 0x00 @ unused
.long PTE_EXT_TEX(5) | PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_DEV_CACHED .long PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_DEV_CACHED
.long 0x00 @ L_PTE_MT_DEV_NONSHARED .long PTE_EXT_TEX(2) @ L_PTE_MT_DEV_NONSHARED
.long 0x00 @ L_PTE_MT_DEV_IXP2000 (not present) .long 0x00 @ L_PTE_MT_DEV_IXP2000 (not present)
.long 0x00 @ unused .long 0x00 @ unused
.long 0x00 @ unused .long 0x00 @ unused

2
arch/arm/mm/proc-xscale.S
View File

@ -434,7 +434,7 @@ cpu_xscale_mt_table:
.long PTE_BUFFERABLE @ L_PTE_MT_BUFFERABLE .long PTE_BUFFERABLE @ L_PTE_MT_BUFFERABLE
.long PTE_CACHEABLE @ L_PTE_MT_WRITETHROUGH .long PTE_CACHEABLE @ L_PTE_MT_WRITETHROUGH
.long PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_WRITEBACK .long PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_WRITEBACK
.long 0x00 @ L_PTE_MT_DEV_SHARED .long PTE_EXT_TEX(1) | PTE_BUFFERABLE @ L_PTE_MT_DEV_SHARED
.long 0x00 @ unused .long 0x00 @ unused
.long PTE_EXT_TEX(1) | PTE_CACHEABLE @ L_PTE_MT_MINICACHE .long PTE_EXT_TEX(1) | PTE_CACHEABLE @ L_PTE_MT_MINICACHE
.long PTE_EXT_TEX(1) | PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_WRITEALLOC .long PTE_EXT_TEX(1) | PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_WRITEALLOC