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drm/amdgpu/gfx9: simplify and fix GRBM index selection

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Copy the approach taken by gfx8, which simplifies the code, and set the
instance index properly. The latter is required for debugging, e.g. for
reading wave status by UMR.

Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nicolai Hähnle 2017-07-14 13:00:04 +02:00 committed by Alex Deucher
parent a4f478bc88
commit be448a4dd4
1 changed files with 13 additions and 11 deletions
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24
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
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@ -1475,21 +1475,23 @@ static void gfx_v9_0_tiling_mode_table_init(struct amdgpu_device *adev)
static void gfx_v9_0_select_se_sh(struct amdgpu_device *adev, u32 se_num, u32 sh_num, u32 instance)
{
u32 data = REG_SET_FIELD(0, GRBM_GFX_INDEX, INSTANCE_BROADCAST_WRITES, 1);
u32 data;
if ((se_num == 0xffffffff) && (sh_num == 0xffffffff)) {
data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SH_BROADCAST_WRITES, 1);
if (instance == 0xffffffff)
data = REG_SET_FIELD(0, GRBM_GFX_INDEX, INSTANCE_BROADCAST_WRITES, 1);
else
data = REG_SET_FIELD(0, GRBM_GFX_INDEX, INSTANCE_INDEX, instance);
if (se_num == 0xffffffff)
data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SE_BROADCAST_WRITES, 1);
} else if (se_num == 0xffffffff) {
data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SH_INDEX, sh_num);
data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SE_BROADCAST_WRITES, 1);
} else if (sh_num == 0xffffffff) {
else
data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SE_INDEX, se_num);
if (sh_num == 0xffffffff)
data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SH_BROADCAST_WRITES, 1);
data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SE_INDEX, se_num);
} else {
else
data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SH_INDEX, sh_num);
data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SE_INDEX, se_num);
}
WREG32_SOC15(GC, 0, mmGRBM_GFX_INDEX, data);
}