| Message ID | 20221228163102.468-2-mario.limonciello@amd.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Recover from failure to probe GPU | expand |
Hello Mario, On 12/28/22 17:30, Mario Limonciello wrote: > Removing the firmware framebuffer from the driver means that even > if the driver doesn't support the IP blocks in a GPU it will no > longer be functional after the driver fails to initialize. > > This change will ensure that unsupported IP blocks at least cause > the driver to work with the EFI framebuffer. > > Cc: stable@vger.kernel.org > Suggested-by: Alex Deucher <alex.deucher@amd.com> > Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> > --- As mentioned, I'm not familiar with this driver but the change looks good to me. Delaying the firmware-provided framebuffer removal is the correct thing to do IMO. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 9a1a5c2864a0..84d83be2087c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -37,6 +37,7 @@ #include <linux/pci-p2pdma.h> #include <drm/drm_atomic_helper.h> +#include <drm/drm_aperture.h> #include <drm/drm_probe_helper.h> #include <drm/amdgpu_drm.h> #include <linux/vgaarb.h> @@ -89,6 +90,8 @@ MODULE_FIRMWARE("amdgpu/navi12_gpu_info.bin"); #define AMDGPU_MAX_RETRY_LIMIT 2 #define AMDGPU_RETRY_SRIOV_RESET(r) ((r) == -EBUSY || (r) == -ETIMEDOUT || (r) == -EINVAL) +static const struct drm_driver amdgpu_kms_driver; + const char *amdgpu_asic_name[] = { "TAHITI", "PITCAIRN", @@ -2140,6 +2143,11 @@ static int amdgpu_device_ip_early_init(struct amdgpu_device *adev) break; } + /* Get rid of things like offb */ + r = drm_aperture_remove_conflicting_pci_framebuffers(adev->pdev, &amdgpu_kms_driver); + if (r) + return r; + if (amdgpu_has_atpx() && (amdgpu_is_atpx_hybrid() || amdgpu_has_atpx_dgpu_power_cntl()) && diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index db7e34eacc35..b9f14ec9edb2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -23,7 +23,6 @@ */ #include <drm/amdgpu_drm.h> -#include <drm/drm_aperture.h> #include <drm/drm_drv.h> #include <drm/drm_gem.h> #include <drm/drm_vblank.h> @@ -2096,11 +2095,6 @@ static int amdgpu_pci_probe(struct pci_dev *pdev, } #endif - /* Get rid of things like offb */ - ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &amdgpu_kms_driver); - if (ret) - return ret; - adev = devm_drm_dev_alloc(&pdev->dev, &amdgpu_kms_driver, typeof(*adev), ddev); if (IS_ERR(adev)) return PTR_ERR(adev);
Removing the firmware framebuffer from the driver means that even if the driver doesn't support the IP blocks in a GPU it will no longer be functional after the driver fails to initialize. This change will ensure that unsupported IP blocks at least cause the driver to work with the EFI framebuffer. Cc: stable@vger.kernel.org Suggested-by: Alex Deucher <alex.deucher@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 8 ++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 6 ------ 2 files changed, 8 insertions(+), 6 deletions(-)