drm/amdgpu: make psp cmd buffer as a reserve memory

Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index e54c8fe..5346f29 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -118,33 +118,18 @@ psp_cmd_submit_buf(struct psp_context *psp,
                   int index)
 {
        int ret;
-       struct amdgpu_bo *cmd_buf_bo;
-       uint64_t cmd_buf_mc_addr;
-       struct psp_gfx_cmd_resp *cmd_buf_mem;
-       struct amdgpu_device *adev = psp->adev;
-
-       ret = amdgpu_bo_create_kernel(adev, PSP_CMD_BUFFER_SIZE, PAGE_SIZE,
-                                     AMDGPU_GEM_DOMAIN_VRAM,
-                                     &cmd_buf_bo, &cmd_buf_mc_addr,
-                                     (void **)&cmd_buf_mem);
-       if (ret)
-               return ret;
 
-       memset(cmd_buf_mem, 0, PSP_CMD_BUFFER_SIZE);
+       memset(psp->cmd_buf_mem, 0, PSP_CMD_BUFFER_SIZE);
 
-       memcpy(cmd_buf_mem, cmd, sizeof(struct psp_gfx_cmd_resp));
+       memcpy(psp->cmd_buf_mem, cmd, sizeof(struct psp_gfx_cmd_resp));
 
-       ret = psp_cmd_submit(psp, ucode, cmd_buf_mc_addr,
+       ret = psp_cmd_submit(psp, ucode, psp->cmd_buf_mc_addr,
                             fence_mc_addr, index);
 
        while (*((unsigned int *)psp->fence_buf) != index) {
                msleep(1);
        }
 
-       amdgpu_bo_free_kernel(&cmd_buf_bo,
-                             &cmd_buf_mc_addr,
-                             (void **)&cmd_buf_mem);
-
        return ret;
 }
 
@@ -352,13 +337,20 @@ static int psp_load_fw(struct amdgpu_device *adev)
                                      &psp->fence_buf_mc_addr,
                                      &psp->fence_buf);
        if (ret)
+               goto failed_mem2;
+
+       ret = amdgpu_bo_create_kernel(adev, PSP_CMD_BUFFER_SIZE, PAGE_SIZE,
+                                     AMDGPU_GEM_DOMAIN_VRAM,
+                                     &psp->cmd_buf_bo, &psp->cmd_buf_mc_addr,
+                                     (void **)&psp->cmd_buf_mem);
+       if (ret)
                goto failed_mem1;
 
        memset(psp->fence_buf, 0, PSP_FENCE_BUFFER_SIZE);
 
        ret = psp_ring_init(psp, PSP_RING_TYPE__KM);
        if (ret)
-               goto failed_mem1;
+               goto failed_mem;
 
        ret = psp_tmr_init(psp);
        if (ret)
@@ -379,9 +371,13 @@ static int psp_load_fw(struct amdgpu_device *adev)
        return 0;
 
 failed_mem:
+       amdgpu_bo_free_kernel(&psp->cmd_buf_bo,
+                             &psp->cmd_buf_mc_addr,
+                             (void **)&psp->cmd_buf_mem);
+failed_mem1:
        amdgpu_bo_free_kernel(&psp->fence_buf_bo,
                              &psp->fence_buf_mc_addr, &psp->fence_buf);
-failed_mem1:
+failed_mem2:
        amdgpu_bo_free_kernel(&psp->fw_pri_bo,
                              &psp->fw_pri_mc_addr, &psp->fw_pri_buf);
 failed:
@@ -442,6 +438,8 @@ static int psp_hw_fini(void *handle)
                              &psp->fence_buf_mc_addr, &psp->fence_buf);
        amdgpu_bo_free_kernel(&psp->asd_shared_bo, &psp->asd_shared_mc_addr,
                              &psp->asd_shared_buf);
+       amdgpu_bo_free_kernel(&psp->cmd_buf_bo, &psp->cmd_buf_mc_addr,
+                             (void **)&psp->cmd_buf_mem);
 
        kfree(psp->cmd);
        psp->cmd = NULL;

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
index 1a1c8b4..538fa9d 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
@@ -108,6 +108,11 @@ struct psp_context
        struct amdgpu_bo                *fence_buf_bo;
        uint64_t                        fence_buf_mc_addr;
        void                            *fence_buf;
+
+       /* cmd buffer */
+       struct amdgpu_bo                *cmd_buf_bo;
+       uint64_t                        cmd_buf_mc_addr;
+       struct psp_gfx_cmd_resp         *cmd_buf_mem;
 };
 
 struct amdgpu_psp_funcs {