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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-arm940.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-arm940.S')
-rw-r--r--arch/arm/mm/proc-arm940.S32
1 files changed, 28 insertions, 4 deletions
diff --git a/arch/arm/mm/proc-arm940.S b/arch/arm/mm/proc-arm940.S
index 8196b9f401fb..1af1657819eb 100644
--- a/arch/arm/mm/proc-arm940.S
+++ b/arch/arm/mm/proc-arm940.S
@@ -171,7 +171,7 @@ ENTRY(arm940_flush_kern_dcache_area)
171 * - start - virtual start address 171 * - start - virtual start address
172 * - end - virtual end address 172 * - end - virtual end address
173 */ 173 */
174ENTRY(arm940_dma_inv_range) 174arm940_dma_inv_range:
175 mov ip, #0 175 mov ip, #0
176 mov r1, #(CACHE_DSEGMENTS - 1) << 4 @ 4 segments 176 mov r1, #(CACHE_DSEGMENTS - 1) << 4 @ 4 segments
1771: orr r3, r1, #(CACHE_DENTRIES - 1) << 26 @ 64 entries 1771: orr r3, r1, #(CACHE_DENTRIES - 1) << 26 @ 64 entries
@@ -192,7 +192,7 @@ ENTRY(arm940_dma_inv_range)
192 * - start - virtual start address 192 * - start - virtual start address
193 * - end - virtual end address 193 * - end - virtual end address
194 */ 194 */
195ENTRY(arm940_dma_clean_range) 195arm940_dma_clean_range:
196ENTRY(cpu_arm940_dcache_clean_area) 196ENTRY(cpu_arm940_dcache_clean_area)
197 mov ip, #0 197 mov ip, #0
198#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH 198#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
@@ -233,6 +233,30 @@ ENTRY(arm940_dma_flush_range)
233 mcr p15, 0, ip, c7, c10, 4 @ drain WB 233 mcr p15, 0, ip, c7, c10, 4 @ drain WB
234 mov pc, lr 234 mov pc, lr
235 235
236/*
237 * dma_map_area(start, size, dir)
238 * - start - kernel virtual start address
239 * - size - size of region
240 * - dir - DMA direction
241 */
242ENTRY(arm940_dma_map_area)
243 add r1, r1, r0
244 cmp r2, #DMA_TO_DEVICE
245 beq arm940_dma_clean_range
246 bcs arm940_dma_inv_range
247 b arm940_dma_flush_range
248ENDPROC(arm940_dma_map_area)
249
250/*
251 * dma_unmap_area(start, size, dir)
252 * - start - kernel virtual start address
253 * - size - size of region
254 * - dir - DMA direction
255 */
256ENTRY(arm940_dma_unmap_area)
257 mov pc, lr
258ENDPROC(arm940_dma_unmap_area)
259
236ENTRY(arm940_cache_fns) 260ENTRY(arm940_cache_fns)
237 .long arm940_flush_kern_cache_all 261 .long arm940_flush_kern_cache_all
238 .long arm940_flush_user_cache_all 262 .long arm940_flush_user_cache_all
@@ -240,8 +264,8 @@ ENTRY(arm940_cache_fns)
240 .long arm940_coherent_kern_range 264 .long arm940_coherent_kern_range
241 .long arm940_coherent_user_range 265 .long arm940_coherent_user_range
242 .long arm940_flush_kern_dcache_area 266 .long arm940_flush_kern_dcache_area
243 .long arm940_dma_inv_range 267 .long arm940_dma_map_area
244 .long arm940_dma_clean_range 268 .long arm940_dma_unmap_area
245 .long arm940_dma_flush_range 269 .long arm940_dma_flush_range
246 270
247 __INIT 271 __INIT