From: Alex Deucher <alexander.deucher@amd.com>
Date: Fri, 5 Jun 2015 18:34:19 +0000 (-0400)
Subject: drm/amdgpu: set the gfx config properly for all CZ variants (v2)
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bd5c97bc1ae77e8f2ec93a2dbe6d4080ae04a4c5;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

drm/amdgpu: set the gfx config properly for all CZ variants (v2)

Need to adjust the number of CUs and RBs.

v2: get proper values

Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Samuel Li <samuel.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 6ae2d6be126a..698ea6ce1185 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -1933,9 +1933,43 @@ static void gfx_v8_0_gpu_init(struct amdgpu_device *adev)
 	case CHIP_CARRIZO:
 		adev->gfx.config.max_shader_engines = 1;
 		adev->gfx.config.max_tile_pipes = 2;
-		adev->gfx.config.max_cu_per_sh = 8;
 		adev->gfx.config.max_sh_per_se = 1;
-		adev->gfx.config.max_backends_per_se = 2;
+
+		switch (adev->pdev->revision) {
+		case 0xc4:
+		case 0x84:
+		case 0xc8:
+		case 0xcc:
+			/* B10 */
+			adev->gfx.config.max_cu_per_sh = 8;
+			adev->gfx.config.max_backends_per_se = 2;
+			break;
+		case 0xc5:
+		case 0x81:
+		case 0x85:
+		case 0xc9:
+		case 0xcd:
+			/* B8 */
+			adev->gfx.config.max_cu_per_sh = 6;
+			adev->gfx.config.max_backends_per_se = 2;
+			break;
+		case 0xc6:
+		case 0xca:
+		case 0xce:
+			/* B6 */
+			adev->gfx.config.max_cu_per_sh = 6;
+			adev->gfx.config.max_backends_per_se = 2;
+			break;
+		case 0xc7:
+		case 0x87:
+		case 0xcb:
+		default:
+			/* B4 */
+			adev->gfx.config.max_cu_per_sh = 4;
+			adev->gfx.config.max_backends_per_se = 1;
+			break;
+		}
+
 		adev->gfx.config.max_texture_channel_caches = 2;
 		adev->gfx.config.max_gprs = 256;
 		adev->gfx.config.max_gs_threads = 32;