From: Tianci.Yin <tianci.yin@amd.com>
Date: Tue, 17 Dec 2019 06:34:45 +0000 (+0800)
Subject: drm/amdgpu: remove memory training p2c buffer reservation(V2)
X-Git-Tag: v5.10.7~3266^2~16^2~82
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=33a9a5ab1edd82d2393b0640bd284e2c02eb2301;p=platform%2Fkernel%2Flinux-rpi.git

drm/amdgpu: remove memory training p2c buffer reservation(V2)

IP discovery TMR(occupied the top VRAM with size DISCOVERY_TMR_SIZE)
has been reserved, and the p2c buffer is in the range of this TMR, so
the p2c buffer reservation is unnecessary.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Xiaojie Yuan <xiaojie.yuan@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
index 5f8fd3e..3265487 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
@@ -202,7 +202,6 @@ struct psp_memory_training_context {
 
 	/*vram offset of the p2c training data*/
 	u64 p2c_train_data_offset;
-	struct amdgpu_bo *p2c_bo;
 
 	/*vram offset of the c2p training data*/
 	u64 c2p_train_data_offset;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 37b027f..b2f8ba9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1714,9 +1714,6 @@ static int amdgpu_ttm_training_reserve_vram_fini(struct amdgpu_device *adev)
 	amdgpu_bo_free_kernel(&ctx->c2p_bo, NULL, NULL);
 	ctx->c2p_bo = NULL;
 
-	amdgpu_bo_free_kernel(&ctx->p2c_bo, NULL, NULL);
-	ctx->p2c_bo = NULL;
-
 	return 0;
 }
 
@@ -1756,17 +1753,6 @@ static int amdgpu_ttm_training_reserve_vram_init(struct amdgpu_device *adev)
 		  ctx->c2p_train_data_offset);
 
 	ret = amdgpu_bo_create_kernel_at(adev,
-					 ctx->p2c_train_data_offset,
-					 ctx->train_data_size,
-					 AMDGPU_GEM_DOMAIN_VRAM,
-					 &ctx->p2c_bo,
-					 NULL);
-	if (ret) {
-		DRM_ERROR("alloc p2c_bo failed(%d)!\n", ret);
-		goto Err_out;
-	}
-
-	ret = amdgpu_bo_create_kernel_at(adev,
 					 ctx->c2p_train_data_offset,
 					 ctx->train_data_size,
 					 AMDGPU_GEM_DOMAIN_VRAM,
@@ -1774,15 +1760,12 @@ static int amdgpu_ttm_training_reserve_vram_init(struct amdgpu_device *adev)
 					 NULL);
 	if (ret) {
 		DRM_ERROR("alloc c2p_bo failed(%d)!\n", ret);
-		goto Err_out;
+		amdgpu_ttm_training_reserve_vram_fini(adev);
+		return ret;
 	}
 
 	ctx->init = PSP_MEM_TRAIN_RESERVE_SUCCESS;
 	return 0;
-
-Err_out:
-	amdgpu_ttm_training_reserve_vram_fini(adev);
-	return ret;
 }
 
 /**