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drm/amdgpu: Add some tweaks to gfx 8 soft reset

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Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2015-10-15 10:59:16 -04:00
parent e160e4db83
commit 7776a69386
1 changed files with 22 additions and 1 deletions
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23
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
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@ -4186,7 +4186,18 @@ static int gfx_v8_0_soft_reset(void *handle)
gfx_v8_0_cp_gfx_enable(adev, false);
/* Disable MEC parsing/prefetching */
/* XXX todo */
gfx_v8_0_cp_compute_enable(adev, false);
if (grbm_soft_reset || srbm_soft_reset) {
tmp = RREG32(mmGMCON_DEBUG);
tmp = REG_SET_FIELD(tmp,
GMCON_DEBUG, GFX_STALL, 1);
tmp = REG_SET_FIELD(tmp,
GMCON_DEBUG, GFX_CLEAR, 1);
WREG32(mmGMCON_DEBUG, tmp);
udelay(50);
}
if (grbm_soft_reset) {
tmp = RREG32(mmGRBM_SOFT_RESET);
@ -4215,6 +4226,16 @@ static int gfx_v8_0_soft_reset(void *handle)
WREG32(mmSRBM_SOFT_RESET, tmp);
tmp = RREG32(mmSRBM_SOFT_RESET);
}
if (grbm_soft_reset || srbm_soft_reset) {
tmp = RREG32(mmGMCON_DEBUG);
tmp = REG_SET_FIELD(tmp,
GMCON_DEBUG, GFX_STALL, 0);
tmp = REG_SET_FIELD(tmp,
GMCON_DEBUG, GFX_CLEAR, 0);
WREG32(mmGMCON_DEBUG, tmp);
}
/* Wait a little for things to settle down */
udelay(50);
gfx_v8_0_print_status((void *)adev);