drm/amdgpu/mes10.1: allocate the eop buffer

eop buffer will be used for mes queue setup.

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/mes_v10_1.c b/drivers/gpu/drm/amd/amdgpu/mes_v10_1.c
index 29fab79..7970107 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/mes_v10_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/mes_v10_1.c
@@ -31,6 +31,8 @@
 
 MODULE_FIRMWARE("amdgpu/navi10_mes.bin");
 
+#define MES_EOP_SIZE   2048
+
 static int mes_v10_1_add_hw_queue(struct amdgpu_mes *mes,
                                  struct mes_add_queue_input *input)
 {
@@ -283,6 +285,29 @@ static int mes_v10_1_load_microcode(struct amdgpu_device *adev)
        return 0;
 }
 
+static int mes_v10_1_allocate_eop_buf(struct amdgpu_device *adev)
+{
+       int r;
+       u32 *eop;
+
+       r = amdgpu_bo_create_reserved(adev, MES_EOP_SIZE, PAGE_SIZE,
+                                     AMDGPU_GEM_DOMAIN_GTT,
+                                     &adev->mes.eop_gpu_obj,
+                                     &adev->mes.eop_gpu_addr,
+                                     (void **)&eop);
+       if (r) {
+               dev_warn(adev->dev, "(%d) create EOP bo failed\n", r);
+               return r;
+       }
+
+       memset(eop, 0, adev->mes.eop_gpu_obj->tbo.mem.size);
+
+       amdgpu_bo_kunmap(adev->mes.eop_gpu_obj);
+       amdgpu_bo_unreserve(adev->mes.eop_gpu_obj);
+
+       return 0;
+}
+
 static int mes_v10_1_sw_init(void *handle)
 {
        int r;
@@ -292,6 +317,10 @@ static int mes_v10_1_sw_init(void *handle)
        if (r)
                return r;
 
+       r = mes_v10_1_allocate_eop_buf(adev);
+       if (r)
+               return r;
+
        return 0;
 }
 
@@ -299,6 +328,10 @@ static int mes_v10_1_sw_fini(void *handle)
 {
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+       amdgpu_bo_free_kernel(&adev->mes.eop_gpu_obj,
+                             &adev->mes.eop_gpu_addr,
+                             NULL);
+
        mes_v10_1_free_microcode(adev);
 
        return 0;