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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-10-09 21:31:56 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-10-09 21:31:56 +0100 |
| commit | 6a4690c22f5da1eb1c898b61b6a80da52fbd976f (patch) | |
| tree | a03891a32abe0da191fb765fe669a597e07423c6 /arch/arm/mm/proc-xsc3.S | |
| parent | 90bb28b0644f7324f8bd1feb27b35146e6785ba2 (diff) | |
| parent | 8ec53663d2698076468b3e1edc4e1b418bd54de3 (diff) | |
| download | talos-op-linux-6a4690c22f5da1eb1c898b61b6a80da52fbd976f.tar.gz talos-op-linux-6a4690c22f5da1eb1c898b61b6a80da52fbd976f.zip | |
Merge branch 'ptebits' into devel
Conflicts:
arch/arm/Kconfig
Diffstat (limited to 'arch/arm/mm/proc-xsc3.S')
| -rw-r--r-- | arch/arm/mm/proc-xsc3.S | 56 |
1 files changed, 28 insertions, 28 deletions
diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S index 7bd9e7197f60..04dc8b65401b 100644 --- a/arch/arm/mm/proc-xsc3.S +++ b/arch/arm/mm/proc-xsc3.S @@ -27,7 +27,7 @@ #include <linux/linkage.h> #include <linux/init.h> #include <asm/assembler.h> -#include <asm/elf.h> +#include <asm/hwcap.h> #include <mach/hardware.h> #include <asm/pgtable.h> #include <asm/pgtable-hwdef.h> @@ -345,38 +345,38 @@ ENTRY(cpu_xsc3_switch_mm) * cpu_xsc3_set_pte_ext(ptep, pte, ext) * * Set a PTE and flush it out - * */ +cpu_xsc3_mt_table: + .long 0x00 @ L_PTE_MT_UNCACHED + .long PTE_EXT_TEX(1) @ L_PTE_MT_BUFFERABLE + .long PTE_CACHEABLE @ L_PTE_MT_WRITETHROUGH + .long PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_WRITEBACK + .long PTE_EXT_TEX(1) | PTE_BUFFERABLE @ L_PTE_MT_DEV_SHARED + .long 0x00 @ unused + .long 0x00 @ L_PTE_MT_MINICACHE (not present) + .long PTE_EXT_TEX(5) | PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_WRITEALLOC (not present?) + .long 0x00 @ unused + .long PTE_EXT_TEX(1) @ L_PTE_MT_DEV_WC + .long 0x00 @ unused + .long PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_DEV_CACHED + .long PTE_EXT_TEX(2) @ L_PTE_MT_DEV_NONSHARED + .long 0x00 @ unused + .long 0x00 @ unused + .long 0x00 @ unused + .align 5 ENTRY(cpu_xsc3_set_pte_ext) - str r1, [r0], #-2048 @ linux version + xscale_set_pte_ext_prologue - bic r2, r1, #0xff0 @ keep C, B bits - orr r2, r2, #PTE_TYPE_EXT @ extended page tst r1, #L_PTE_SHARED @ shared? - orrne r2, r2, #0x200 - - eor r3, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY - - tst r3, #L_PTE_USER @ user? - orrne r2, r2, #PTE_EXT_AP_URO_SRW @ yes -> user r/o, system r/w - - tst r3, #L_PTE_WRITE | L_PTE_DIRTY @ write and dirty? - orreq r2, r2, #PTE_EXT_AP_UNO_SRW @ yes -> user n/a, system r/w - @ combined with user -> user r/w - - @ If it's cacheable, it needs to be in L2 also. - eor ip, r1, #L_PTE_CACHEABLE - tst ip, #L_PTE_CACHEABLE - orreq r2, r2, #PTE_EXT_TEX(0x5) - - tst r3, #L_PTE_PRESENT | L_PTE_YOUNG @ present and young? - movne r2, #0 @ no -> fault - - str r2, [r0] @ hardware version - mov ip, #0 - mcr p15, 0, r0, c7, c10, 1 @ clean L1 D line - mcr p15, 0, ip, c7, c10, 4 @ data write barrier + and r1, r1, #L_PTE_MT_MASK + adr ip, cpu_xsc3_mt_table + ldr ip, [ip, r1] + orrne r2, r2, #PTE_EXT_COHERENT @ interlock: mask in coherent bit + bic r2, r2, #0x0c @ clear old C,B bits + orr r2, r2, ip + + xscale_set_pte_ext_epilogue mov pc, lr .ltorg |
