Vineet Gupta ee40bd1e0c ARCv2: mm: Merge 2 updates to DC_CTRL for region flush ... Region Flush has a weird programming model. 1. Flush or Invalidate is selected by DC_CTRL.RGN_OP 2 Flush-n-Invalidate is done by DC_CTRL.IM Given the code structuring before, case #2 above was generating two seperate updates to DC_CTRL which was pointless. | 80a342b0 <__dma_cache_wback_inv_l1>: | 80a342b0: clri r4 | 80a342b4: lr r2,[dc_ctrl] | 80a342b8: bset_s r2,r2,0x6 | 80a342ba: sr r2,[dc_ctrl] <-- FIRST | | 80a342be: bmskn r3,r0,0x5 | | 80a342c2: lr r2,[dc_ctrl] | 80a342c6: and r2,r2,0xfffff1ff | 80a342ce: bset_s r2,r2,0x9 | 80a342d0: sr r2,[dc_ctrl] <-- SECOND | | 80a342d4: add_s r1,r1,0x3f | 80a342d6: bmsk_s r0,r0,0x5 | 80a342d8: add_s r0,r0,r1 | 80a342da: add_s r0,r0,r3 | 80a342dc: sr r0,[78] | 80a342e0: sr r3,[77] |... |... So move setting of DC_CTRL.RGN_OP into __before_dc_op() and combine with any other update. | 80b63324 <__dma_cache_wback_inv_l1>: | 80b63324: clri r3 | 80b63328: lr r2,[dc_ctrl] | 80b6332c: and r2,r2,0xfffff1ff | 80b63334: or r2,r2,576 | 80b63338: sr r2,[dc_ctrl] | | 80b6333c: add_s r1,r1,0x3f | 80b6333e: bmskn r2,r0,0x5 | 80b63342: add_s r0,r0,r1 | 80b63344: sr r0,[78] | 80b63348: sr r2,[77] Signed-off-by: Vineet Gupta <vgupta@synopsys.com>		2017-05-02 16:16:07 -07:00
..
Makefile	ARC: mm: HIGHMEM: kmap API implementation	2015-10-28 19:49:04 +05:30
cache.c	ARCv2: mm: Merge 2 updates to DC_CTRL for region flush	2017-05-02 16:16:07 -07:00
dma.c	treewide: Constify most dma_map_ops structures	2017-01-24 12:23:35 -05:00
extable.c	arc: migrate exception table users off module.h and onto extable.h	2017-01-26 10:58:15 -05:00
fault.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
highmem.c	ARC: export kmap	2016-08-19 10:45:29 -07:00
init.c	ARCv2: IOC: Use actual memory size to setup aperture size	2017-01-18 14:52:43 -08:00
ioremap.c	ARCv2: Support dynamic peripheral address space in HS38 rel 3.0 cores	2016-09-30 14:48:17 -07:00
mmap.c	sched/headers: Prepare for new header dependencies before moving more code to <linux/sched/mm.h>	2017-03-02 08:42:30 +01:00
tlb.c	sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-02 08:42:37 +01:00
tlbex.S	ARC: mm: retire ARC_DBG_TLB_MISS_COUNT...	2016-10-28 10:10:28 -07:00