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
..
boot	arc: axs10x: Fix ARC PGU default clock frequency	2017-04-27 12:08:28 -07:00
configs	arc: vdk: Add support of UIO	2017-02-06 09:37:57 -08:00
include	ARCv2: mm: Implement cache region flush operations	2017-05-02 15:57:22 -07:00
kernel	ARCv2: entry: save Accumulator register pair (r58:59) if present	2017-04-20 15:37:49 -07:00
lib
mm	ARCv2: mm: Merge 2 updates to DC_CTRL for region flush	2017-05-02 16:16:07 -07:00
oprofile
plat-axs10x
plat-eznps	ARC: [plat-*] ARC_HAS_COH_CACHES no longer relevant	2017-02-06 09:37:57 -08:00
plat-sim	ARC: [plat-*] ARC_HAS_COH_CACHES no longer relevant	2017-02-06 09:37:57 -08:00
plat-tb10x
Kbuild
Kconfig	ARCv2: entry: save Accumulator register pair (r58:59) if present	2017-04-20 15:37:49 -07:00
Kconfig.debug
Makefile