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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-01 12:15:15 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-01 12:15:15 -0500
commitac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9 (patch)
tree816e5ac643b15c2050c64a7075f0f7e13d86ea09 /arch/arm/mm/proc-arm922.S
parentb1bf9368407ae7e89d8a005bb40beb70a41df539 (diff)
parent9f33be2c3a80bdc2cc08342dd77fac87652e0548 (diff)
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-arm922.S')
-rw-r--r--arch/arm/mm/proc-arm922.S32
1 files changed, 28 insertions, 4 deletions
diff --git a/arch/arm/mm/proc-arm922.S b/arch/arm/mm/proc-arm922.S
index ee111b00fa41..c0ff8e4b1074 100644
--- a/arch/arm/mm/proc-arm922.S
+++ b/arch/arm/mm/proc-arm922.S
@@ -241,7 +241,7 @@ ENTRY(arm922_flush_kern_dcache_area)
241 * 241 *
242 * (same as v4wb) 242 * (same as v4wb)
243 */ 243 */
244ENTRY(arm922_dma_inv_range) 244arm922_dma_inv_range:
245 tst r0, #CACHE_DLINESIZE - 1 245 tst r0, #CACHE_DLINESIZE - 1
246 bic r0, r0, #CACHE_DLINESIZE - 1 246 bic r0, r0, #CACHE_DLINESIZE - 1
247 mcrne p15, 0, r0, c7, c10, 1 @ clean D entry 247 mcrne p15, 0, r0, c7, c10, 1 @ clean D entry
@@ -264,7 +264,7 @@ ENTRY(arm922_dma_inv_range)
264 * 264 *
265 * (same as v4wb) 265 * (same as v4wb)
266 */ 266 */
267ENTRY(arm922_dma_clean_range) 267arm922_dma_clean_range:
268 bic r0, r0, #CACHE_DLINESIZE - 1 268 bic r0, r0, #CACHE_DLINESIZE - 1
2691: mcr p15, 0, r0, c7, c10, 1 @ clean D entry 2691: mcr p15, 0, r0, c7, c10, 1 @ clean D entry
270 add r0, r0, #CACHE_DLINESIZE 270 add r0, r0, #CACHE_DLINESIZE
@@ -290,6 +290,30 @@ ENTRY(arm922_dma_flush_range)
290 mcr p15, 0, r0, c7, c10, 4 @ drain WB 290 mcr p15, 0, r0, c7, c10, 4 @ drain WB
291 mov pc, lr 291 mov pc, lr
292 292
293/*
294 * dma_map_area(start, size, dir)
295 * - start - kernel virtual start address
296 * - size - size of region
297 * - dir - DMA direction
298 */
299ENTRY(arm922_dma_map_area)
300 add r1, r1, r0
301 cmp r2, #DMA_TO_DEVICE
302 beq arm922_dma_clean_range
303 bcs arm922_dma_inv_range
304 b arm922_dma_flush_range
305ENDPROC(arm922_dma_map_area)
306
307/*
308 * dma_unmap_area(start, size, dir)
309 * - start - kernel virtual start address
310 * - size - size of region
311 * - dir - DMA direction
312 */
313ENTRY(arm922_dma_unmap_area)
314 mov pc, lr
315ENDPROC(arm922_dma_unmap_area)
316
293ENTRY(arm922_cache_fns) 317ENTRY(arm922_cache_fns)
294 .long arm922_flush_kern_cache_all 318 .long arm922_flush_kern_cache_all
295 .long arm922_flush_user_cache_all 319 .long arm922_flush_user_cache_all
@@ -297,8 +321,8 @@ ENTRY(arm922_cache_fns)
297 .long arm922_coherent_kern_range 321 .long arm922_coherent_kern_range
298 .long arm922_coherent_user_range 322 .long arm922_coherent_user_range
299 .long arm922_flush_kern_dcache_area 323 .long arm922_flush_kern_dcache_area
300 .long arm922_dma_inv_range 324 .long arm922_dma_map_area
301 .long arm922_dma_clean_range 325 .long arm922_dma_unmap_area
302 .long arm922_dma_flush_range 326 .long arm922_dma_flush_range
303 327
304#endif 328#endif