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drm/amdgpu: Indicate CU havest info to CP

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To achieve full occupancy CP hardware needs to know if CUs in SE are
symmetrically or asymmetrically harvested

v2: Reset is_symmetric_cus for each loop

Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Harish Kasiviswanathan 2024-06-05 09:30:50 -04:00 committed by Alex Deucher
parent 56342da3d8
commit 49c9ffabde
1 changed files with 13 additions and 2 deletions
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15
drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
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@ -4195,9 +4195,10 @@ static u32 gfx_v9_4_3_get_cu_active_bitmap(struct amdgpu_device *adev, int xcc_i
static int gfx_v9_4_3_get_cu_info(struct amdgpu_device *adev,
struct amdgpu_cu_info *cu_info)
{
int i, j, k, counter, xcc_id, active_cu_number = 0;
u32 mask, bitmap, ao_bitmap, ao_cu_mask = 0;
int i, j, k, prev_counter, counter, xcc_id, active_cu_number = 0;
u32 mask, bitmap, ao_bitmap, ao_cu_mask = 0, tmp;
unsigned disable_masks[4 * 4];
bool is_symmetric_cus;
if (!adev || !cu_info)
return -EINVAL;
@ -4215,6 +4216,7 @@ static int gfx_v9_4_3_get_cu_info(struct amdgpu_device *adev,
mutex_lock(&adev->grbm_idx_mutex);
for (xcc_id = 0; xcc_id < NUM_XCC(adev->gfx.xcc_mask); xcc_id++) {
is_symmetric_cus = true;
for (i = 0; i < adev->gfx.config.max_shader_engines; i++) {
for (j = 0; j < adev->gfx.config.max_sh_per_se; j++) {
mask = 1;
@ -4242,6 +4244,15 @@ static int gfx_v9_4_3_get_cu_info(struct amdgpu_device *adev,
ao_cu_mask |= (ao_bitmap << (i * 16 + j * 8));
cu_info->ao_cu_bitmap[i][j] = ao_bitmap;
}
if (i && is_symmetric_cus && prev_counter != counter)
is_symmetric_cus = false;
prev_counter = counter;
}
if (is_symmetric_cus) {
tmp = RREG32_SOC15(GC, GET_INST(GC, xcc_id), regCP_CPC_DEBUG);
tmp = REG_SET_FIELD(tmp, CP_CPC_DEBUG, CPC_HARVESTING_RELAUNCH_DISABLE, 1);
tmp = REG_SET_FIELD(tmp, CP_CPC_DEBUG, CPC_HARVESTING_DISPATCH_DISABLE, 1);
WREG32_SOC15(GC, GET_INST(GC, xcc_id), regCP_CPC_DEBUG, tmp);
}
gfx_v9_4_3_xcc_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff,
xcc_id);