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drm/amdgpu/gfx7: set USER_SHADER_ARRAY_CONFIG based on disable_cu parameter

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v2: do not overwrite register when bitmap is zero

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nicolai Hähnle 2016-06-17 19:31:34 +02:00 committed by Alex Deucher
parent 6f8941a230
commit 324c614a81
1 changed files with 20 additions and 0 deletions
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20
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
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@ -3868,6 +3868,20 @@ static void gfx_v7_0_enable_gfx_cgpg(struct amdgpu_device *adev,
}
}
static void gfx_v7_0_set_user_cu_inactive_bitmap(struct amdgpu_device *adev,
u32 bitmap)
{
u32 data;
if (!bitmap)
return;
data = bitmap << GC_USER_SHADER_ARRAY_CONFIG__INACTIVE_CUS__SHIFT;
data &= GC_USER_SHADER_ARRAY_CONFIG__INACTIVE_CUS_MASK;
WREG32(mmGC_USER_SHADER_ARRAY_CONFIG, data);
}
static u32 gfx_v7_0_get_cu_active_bitmap(struct amdgpu_device *adev)
{
u32 data, mask;
@ -5033,9 +5047,12 @@ static void gfx_v7_0_get_cu_info(struct amdgpu_device *adev)
int i, j, k, counter, active_cu_number = 0;
u32 mask, bitmap, ao_bitmap, ao_cu_mask = 0;
struct amdgpu_cu_info *cu_info = &adev->gfx.cu_info;
unsigned disable_masks[4 * 2];
memset(cu_info, 0, sizeof(*cu_info));
amdgpu_gfx_parse_disable_cu(disable_masks, 4, 2);
mutex_lock(&adev->grbm_idx_mutex);
for (i = 0; i < adev->gfx.config.max_shader_engines; i++) {
for (j = 0; j < adev->gfx.config.max_sh_per_se; j++) {
@ -5043,6 +5060,9 @@ static void gfx_v7_0_get_cu_info(struct amdgpu_device *adev)
ao_bitmap = 0;
counter = 0;
gfx_v7_0_select_se_sh(adev, i, j);
if (i < 4 && j < 2)
gfx_v7_0_set_user_cu_inactive_bitmap(
adev, disable_masks[i * 2 + j]);
bitmap = gfx_v7_0_get_cu_active_bitmap(adev);
cu_info->bitmap[i][j] = bitmap;