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drm/amdgpu: add psp cmd submit timeout

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Signed-off-by: xinhui pan <xinhui.pan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
xinhui pan 2019-01-23 11:35:31 +08:00 committed by Alex Deucher
parent 3ea8fb8c80
commit ea11421391
1 changed files with 5 additions and 1 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
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@ -120,6 +120,7 @@ psp_cmd_submit_buf(struct psp_context *psp,
{
int ret;
int index;
int timeout = 2000;
memset(psp->cmd_buf_mem, 0, PSP_CMD_BUFFER_SIZE);
@ -133,8 +134,11 @@ psp_cmd_submit_buf(struct psp_context *psp,
return ret;
}
while (*((unsigned int *)psp->fence_buf) != index)
while (*((unsigned int *)psp->fence_buf) != index) {
if (--timeout == 0)
return -EINVAL;
msleep(1);
}
/* In some cases, psp response status is not 0 even there is no
* problem while the command is submitted. Some version of PSP FW