[PATCH v11 26/28] drm/amdgpu: fix MES GFX mask

[Shashank Sharma <shashank.sharma@amd.com>]

From: Arvind Yadav <Arvind.Yadav@amd.com>

Current MES GFX mask prevents FW to enable oversubscription. This patch
does the following:
- Fixes the mask values and adds a description for the same
- Removes the central mask setup and makes it IP specific, as it would
  be different when the number of pipes and queues are different.

Cc: Christian König <Christian.Koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Arvind Yadav <arvind.yadav@amd.com>
Change-Id: I86f5b89c5527c23df94edc707c69c78819f4c8cf
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c | 3 ---
 drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h | 2 +-
 drivers/gpu/drm/amd/amdgpu/mes_v11_0.c  | 9 +++++++--
 3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
index f7d5d4f08a53..dbf19122dfc3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
@@ -151,9 +151,6 @@ int amdgpu_mes_init(struct amdgpu_device *adev)
 		adev->mes.compute_hqd_mask[i] = 0xc;
 	}
 
-	for (i = 0; i < AMDGPU_MES_MAX_GFX_PIPES; i++)
-		adev->mes.gfx_hqd_mask[i] = i ? 0 : 0xfffffffe;
-
 	for (i = 0; i < AMDGPU_MES_MAX_SDMA_PIPES; i++) {
 		if (amdgpu_ip_version(adev, SDMA0_HWIP, 0) <
 		    IP_VERSION(6, 0, 0))
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
index 96788c0f42f1..45e3508f0f8e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
@@ -109,8 +109,8 @@ struct amdgpu_mes {
 
 	uint32_t                        vmid_mask_gfxhub;
 	uint32_t                        vmid_mask_mmhub;
-	uint32_t                        compute_hqd_mask[AMDGPU_MES_MAX_COMPUTE_PIPES];
 	uint32_t                        gfx_hqd_mask[AMDGPU_MES_MAX_GFX_PIPES];
+	uint32_t                        compute_hqd_mask[AMDGPU_MES_MAX_COMPUTE_PIPES];
 	uint32_t                        sdma_hqd_mask[AMDGPU_MES_MAX_SDMA_PIPES];
 	uint32_t                        aggregated_doorbells[AMDGPU_MES_PRIORITY_NUM_LEVELS];
 	uint32_t                        sch_ctx_offs[AMDGPU_MAX_MES_PIPES];
diff --git a/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c b/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c
index 2911c45cfbe0..d2610a664b2a 100644
--- a/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c
@@ -653,8 +653,13 @@ static int mes_v11_0_set_hw_resources(struct amdgpu_mes *mes)
 		mes_set_hw_res_pkt.compute_hqd_mask[i] =
 			mes->compute_hqd_mask[i];
 
-	for (i = 0; i < MAX_GFX_PIPES; i++)
-		mes_set_hw_res_pkt.gfx_hqd_mask[i] = mes->gfx_hqd_mask[i];
+	/*
+	 * GFX pipe 0 queue 0 is being used by kernel
+	 * Set GFX pipe 0 queue 1 for MES scheduling
+	 * GFX pipe 1 can't be used for MES due to HW limitation.
+	 */
+	mes_set_hw_res_pkt.gfx_hqd_mask[0] = 0x2;
+	mes_set_hw_res_pkt.gfx_hqd_mask[1] = 0;
 
 	for (i = 0; i < MAX_SDMA_PIPES; i++)
 		mes_set_hw_res_pkt.sdma_hqd_mask[i] = mes->sdma_hqd_mask[i];
-- 
2.45.1