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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-01 18:15:15 +0100 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-01 18:15:15 +0100 |
commit | ac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9 (patch) | |
tree | 816e5ac643b15c2050c64a7075f0f7e13d86ea09 /arch/arm/mm/proc-xscale.S | |
parent | Merge branch 'for-2.6.34' of git://git.kernel.dk/linux-2.6-block (diff) | |
parent | Merge branches 'clks' and 'pnx' into devel (diff) | |
download | linux-ac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9.tar.xz linux-ac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9.zip |
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (100 commits)
ARM: Eliminate decompressor -Dstatic= PIC hack
ARM: 5958/1: ARM: U300: fix inverted clk round rate
ARM: 5956/1: misplaced parentheses
ARM: 5955/1: ep93xx: move timer defines into core.c and document
ARM: 5954/1: ep93xx: move gpio interrupt support to gpio.c
ARM: 5953/1: ep93xx: fix broken build of clock.c
ARM: 5952/1: ARM: MM: Add ARM_L1_CACHE_SHIFT_6 for handle inside each ARCH Kconfig
ARM: 5949/1: NUC900 add gpio virtual memory map
ARM: 5948/1: Enable timer0 to time4 clock support for nuc910
ARM: 5940/2: ARM: MMCI: remove custom DBG macro and printk
ARM: make_coherent(): fix problems with highpte, part 2
MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself
ARM: 5945/1: ep93xx: include correct irq.h in core.c
ARM: 5933/1: amba-pl011: support hardware flow control
ARM: 5930/1: Add PKMAP area description to memory.txt.
ARM: 5929/1: Add checks to detect overlap of memory regions.
ARM: 5928/1: Change type of VMALLOC_END to unsigned long.
ARM: 5927/1: Make delimiters of DMA area globally visibly.
ARM: 5926/1: Add "Virtual kernel memory..." printout.
ARM: 5920/1: OMAP4: Enable L2 Cache
...
Fix up trivial conflict in arch/arm/mach-mx25/clock.c
Diffstat (limited to 'arch/arm/mm/proc-xscale.S')
-rw-r--r-- | arch/arm/mm/proc-xscale.S | 49 |
1 files changed, 43 insertions, 6 deletions
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S index 93df47265f2d..63037e2162f2 100644 --- a/arch/arm/mm/proc-xscale.S +++ b/arch/arm/mm/proc-xscale.S @@ -315,7 +315,7 @@ ENTRY(xscale_flush_kern_dcache_area) * - start - virtual start address * - end - virtual end address */ -ENTRY(xscale_dma_inv_range) +xscale_dma_inv_range: tst r0, #CACHELINESIZE - 1 bic r0, r0, #CACHELINESIZE - 1 mcrne p15, 0, r0, c7, c10, 1 @ clean D entry @@ -336,7 +336,7 @@ ENTRY(xscale_dma_inv_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(xscale_dma_clean_range) +xscale_dma_clean_range: bic r0, r0, #CACHELINESIZE - 1 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #CACHELINESIZE @@ -363,6 +363,43 @@ ENTRY(xscale_dma_flush_range) mcr p15, 0, r0, c7, c10, 4 @ Drain Write (& Fill) Buffer mov pc, lr +/* + * dma_map_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction + */ +ENTRY(xscale_dma_map_area) + add r1, r1, r0 + cmp r2, #DMA_TO_DEVICE + beq xscale_dma_clean_range + bcs xscale_dma_inv_range + b xscale_dma_flush_range +ENDPROC(xscale_dma_map_area) + +/* + * dma_map_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction + */ +ENTRY(xscale_dma_a0_map_area) + add r1, r1, r0 + teq r2, #DMA_TO_DEVICE + beq xscale_dma_clean_range + b xscale_dma_flush_range +ENDPROC(xscsale_dma_a0_map_area) + +/* + * dma_unmap_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction + */ +ENTRY(xscale_dma_unmap_area) + mov pc, lr +ENDPROC(xscale_dma_unmap_area) + ENTRY(xscale_cache_fns) .long xscale_flush_kern_cache_all .long xscale_flush_user_cache_all @@ -370,8 +407,8 @@ ENTRY(xscale_cache_fns) .long xscale_coherent_kern_range .long xscale_coherent_user_range .long xscale_flush_kern_dcache_area - .long xscale_dma_inv_range - .long xscale_dma_clean_range + .long xscale_dma_map_area + .long xscale_dma_unmap_area .long xscale_dma_flush_range /* @@ -394,8 +431,8 @@ ENTRY(xscale_80200_A0_A1_cache_fns) .long xscale_coherent_kern_range .long xscale_coherent_user_range .long xscale_flush_kern_dcache_area - .long xscale_dma_flush_range - .long xscale_dma_clean_range + .long xscale_dma_a0_map_area + .long xscale_dma_unmap_area .long xscale_dma_flush_range ENTRY(cpu_xscale_dcache_clean_area) |