On 10/12/2018 11:21 AM, Emily Deng wrote:
For sriov, when first run windows guest, then run linux guest, the gds
vmid0 size will be reset to 0 by windows guest. So if the value has been
reset to 0, then set the value to the default value in linux guest.
Signed-off-by: Emily Deng <Emily.Deng@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index ae86238..d9df3dd 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -4872,6 +4872,17 @@ static void gfx_v9_0_set_rlc_funcs(struct amdgpu_device *adev)
}
}
+static void gfx_v9_0_set_gds_default(struct amdgpu_device *adev)
+{
+ switch (adev->asic_type) {
+ case CHIP_VEGA10:
+ adev->gds.mem.total_size = 0x10000;
Do you mean this value is same as the original value from
mmGDS_VMID0_SIZE before reset?
if so, we may provide a default value for recovery, e.g. in the gds.mem
structure.
Regards,
Jerry
+ break;
+ default:
+ break;
+ }
+}
+
static void gfx_v9_0_set_gds_init(struct amdgpu_device *adev)
{
/* init asci gds info */
@@ -4879,6 +4890,9 @@ static void gfx_v9_0_set_gds_init(struct amdgpu_device *adev)
adev->gds.gws.total_size = 64;
adev->gds.oa.total_size = 16;
+ if (adev->gds.mem.total_size == 0 && amdgpu_sriov_vf(adev))
+ gfx_v9_0_set_gds_default(adev);
+
if (adev->gds.mem.total_size == 64 * 1024) {
adev->gds.mem.gfx_partition_size = 4096;
adev->gds.mem.cs_partition_size = 4096;
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