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drm/radeon: reset dma engine on gpu reset (v2)

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This try to reset the dma engine when performing gpu reset. Hopefully
bringing back the gpu dma engine in sane state.

v2: agd5f: fix dma reset on cayman/TN, add support for SI

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jerome Glisse
2013-01-02 17:30:35 -05:00
committed by Alex Deucher
parent eaaa6983ab
commit 64c56e8ce3
7 changed files with 112 additions and 27 deletions
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16
drivers/gpu/drm/radeon/sid.h
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@@ -62,6 +62,22 @@
#define SRBM_STATUS 0xE50
#define SRBM_SOFT_RESET 0x0E60
#define SOFT_RESET_BIF (1 << 1)
#define SOFT_RESET_DC (1 << 5)
#define SOFT_RESET_DMA1 (1 << 6)
#define SOFT_RESET_GRBM (1 << 8)
#define SOFT_RESET_HDP (1 << 9)
#define SOFT_RESET_IH (1 << 10)
#define SOFT_RESET_MC (1 << 11)
#define SOFT_RESET_ROM (1 << 14)
#define SOFT_RESET_SEM (1 << 15)
#define SOFT_RESET_VMC (1 << 17)
#define SOFT_RESET_DMA (1 << 20)
#define SOFT_RESET_TST (1 << 21)
#define SOFT_RESET_REGBB (1 << 22)
#define SOFT_RESET_ORB (1 << 23)
#define CC_SYS_RB_BACKEND_DISABLE 0xe80
#define GC_USER_SYS_RB_BACKEND_DISABLE 0xe84