drm/amdgpu/gmc10: switch to using amdgpu_gmc_get_vbios_allocations

The new helper centralizes the logic in one place.
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c

@@ -572,6 +572,28 @@ static void gmc_v10_0_get_vm_pte(struct amdgpu_device *adev,
 	}
 }
 
+static unsigned gmc_v10_0_get_vbios_fb_size(struct amdgpu_device *adev)
+{
+	u32 d1vga_control = RREG32_SOC15(DCE, 0, mmD1VGA_CONTROL);
+	unsigned size;
+
+	if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
+		size = AMDGPU_VBIOS_VGA_ALLOCATION;
+	} else {
+		u32 viewport;
+		u32 pitch;
+
+		viewport = RREG32_SOC15(DCE, 0, mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION);
+		pitch = RREG32_SOC15(DCE, 0, mmHUBPREQ0_DCSURF_SURFACE_PITCH);
+		size = (REG_GET_FIELD(viewport,
+					HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_HEIGHT) *
+				REG_GET_FIELD(pitch, HUBPREQ0_DCSURF_SURFACE_PITCH, PITCH) *
+				4);
+	}
+
+	return size;
+}
+
 static const struct amdgpu_gmc_funcs gmc_v10_0_gmc_funcs = {
 	.flush_gpu_tlb = gmc_v10_0_flush_gpu_tlb,
 	.flush_gpu_tlb_pasid = gmc_v10_0_flush_gpu_tlb_pasid,
@@ -579,7 +601,8 @@ static const struct amdgpu_gmc_funcs gmc_v10_0_gmc_funcs = {
 	.emit_pasid_mapping = gmc_v10_0_emit_pasid_mapping,
 	.map_mtype = gmc_v10_0_map_mtype,
 	.get_vm_pde = gmc_v10_0_get_vm_pde,
-	.get_vm_pte = gmc_v10_0_get_vm_pte
+	.get_vm_pte = gmc_v10_0_get_vm_pte,
+	.get_vbios_fb_size = gmc_v10_0_get_vbios_fb_size,
 };
 
 static void gmc_v10_0_set_gmc_funcs(struct amdgpu_device *adev)
@@ -741,36 +764,6 @@ static int gmc_v10_0_gart_init(struct amdgpu_device *adev)
 	return amdgpu_gart_table_vram_alloc(adev);
 }
 
-static unsigned gmc_v10_0_get_vbios_fb_size(struct amdgpu_device *adev)
-{
-	u32 d1vga_control = RREG32_SOC15(DCE, 0, mmD1VGA_CONTROL);
-	unsigned size;
-
-	if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
-		size = AMDGPU_VBIOS_VGA_ALLOCATION;
-	} else {
-		u32 viewport;
-		u32 pitch;
-
-		viewport = RREG32_SOC15(DCE, 0, mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION);
-		pitch = RREG32_SOC15(DCE, 0, mmHUBPREQ0_DCSURF_SURFACE_PITCH);
-		size = (REG_GET_FIELD(viewport,
-					HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_HEIGHT) *
-				REG_GET_FIELD(pitch, HUBPREQ0_DCSURF_SURFACE_PITCH, PITCH) *
-				4);
-	}
-	/* return 0 if the pre-OS buffer uses up most of vram */
-	if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024)) {
-		DRM_ERROR("Warning: pre-OS buffer uses most of vram, \
-				be aware of gart table overwrite\n");
-		return 0;
-	}
-
-	return size;
-}
-
-
-
 static int gmc_v10_0_sw_init(void *handle)
 {
 	int r, vram_width = 0, vram_type = 0, vram_vendor = 0;
@@ -860,7 +853,7 @@ static int gmc_v10_0_sw_init(void *handle)
 	if (r)
 		return r;
 
-	adev->gmc.stolen_vga_size = gmc_v10_0_get_vbios_fb_size(adev);
+	amdgpu_gmc_get_vbios_allocations(adev);
 
 	/* Memory manager */
 	r = amdgpu_bo_init(adev);