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From bd5c97bc1ae77e8f2ec93a2dbe6d4080ae04a4c5 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Fri, 5 Jun 2015 14:34:19 -0400
Subject: [PATCH 0257/1050] drm/amdgpu: set the gfx config properly for all CZ
variants (v2)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
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>
---
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 38 +++++++++++++++++++++++++++++++++--
1 file changed, 36 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 6ae2d6b..698ea6c 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;
--
1.9.1
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