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drm/amdgpu: revise retry init to fully cleanup driver

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Retry at drm_dev_register instead of amdgpu_device_init.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Pixel Ding <Pixel.Ding@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Pixel Ding
2017-11-08 11:03:14 +08:00
committed by Alex Deucher
parent baef9a196f
commit 1daee8b472
3 changed files with 14 additions and 15 deletions
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11
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
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@@ -565,12 +565,13 @@ static int amdgpu_kick_out_firmware_fb(struct pci_dev *pdev)
return 0;
}
static int amdgpu_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct drm_device *dev;
unsigned long flags = ent->driver_data;
int ret;
int ret, retry = 0;
if ((flags & AMD_EXP_HW_SUPPORT) && !amdgpu_exp_hw_support) {
DRM_INFO("This hardware requires experimental hardware support.\n"
@@ -603,8 +604,14 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
pci_set_drvdata(pdev, dev);
retry_init:
ret = drm_dev_register(dev, ent->driver_data);
if (ret)
if (ret == -EAGAIN && ++retry <= 3) {
DRM_INFO("retry init %d\n", retry);
/* Don't request EX mode too frequently which is attacking */
msleep(5000);
goto retry_init;
} else if (ret)
goto err_pci;
return 0;