答复: [PATCH 07/21] drm/amdgpu:fix gart table vram pin

[Liu, Monk]

anyone to review those patches ?

they are for SRIOV case mainly, and they are prepare for later TDR feature (GPU-reset on SR-IOV)


________________________________
发件人: Monk Liu <Monk.Liu at amd.com>
发送时间: 2017年2月4日 18:34:59
收件人: amd-gfx at lists.freedesktop.org
抄送: Liu, Monk
主题: [PATCH 07/21] drm/amdgpu:fix gart table vram pin

if this call is from resume, shouldn't enter pin logic at all

Change-Id: I40a5cdc2a716c4c20d2812fd74ece4ea284b6765
Signed-off-by: Monk Liu <Monk.Liu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
index 964d2a9..5e907f7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
@@ -151,6 +151,11 @@ int amdgpu_gart_table_vram_pin(struct amdgpu_device *adev)
         uint64_t gpu_addr;
         int r;

+       if (adev->gart.table_addr) {
+               /* it's a resume call, gart already pin */
+               return 0;
+       }
+
         r = amdgpu_bo_reserve(adev->gart.robj, false);
         if (unlikely(r != 0))
                 return r;
--
2.7.4

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