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drm/amdgpu: save/restore part of xcp drm_device fields

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Redirect xcp allocated drm_device::rdev/pdev/driver with
amdgpu pci_device/drm_device setting. They need be saved
before redirect and restored after unregister xcp drm_device.

-v2: fix warning discarded-qualifiers

Signed-off-by: James Zhu <James.Zhu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
James Zhu
2023-04-25 16:55:56 -04:00
committed by Alex Deucher
parent 20997c04b7
commit 2310554172
2 changed files with 18 additions and 2 deletions
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drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
+14 -2
View File
@@ -240,9 +240,14 @@ static int amdgpu_xcp_dev_alloc(struct amdgpu_device *adev)
return PTR_ERR(p_ddev);
/* Redirect all IOCTLs to the primary device */
adev->xcp_mgr->xcp[i].rdev = p_ddev->render->dev;
adev->xcp_mgr->xcp[i].pdev = p_ddev->primary->dev;
adev->xcp_mgr->xcp[i].driver = (struct drm_driver *)p_ddev->driver;
adev->xcp_mgr->xcp[i].vma_offset_manager = p_ddev->vma_offset_manager;
p_ddev->render->dev = ddev;
p_ddev->primary->dev = ddev;
p_ddev->vma_offset_manager = ddev->vma_offset_manager;
p_ddev->driver = &amdgpu_partition_driver;
adev->xcp_mgr->xcp[i].ddev = p_ddev;
}
@@ -330,13 +335,20 @@ int amdgpu_xcp_dev_register(struct amdgpu_device *adev,
void amdgpu_xcp_dev_unplug(struct amdgpu_device *adev)
{
struct drm_device *p_ddev;
int i;
if (!adev->xcp_mgr)
return;
for (i = 0; i < MAX_XCP; i++)
drm_dev_unplug(adev->xcp_mgr->xcp[i].ddev);
for (i = 0; i < MAX_XCP; i++) {
p_ddev = adev->xcp_mgr->xcp[i].ddev;
drm_dev_unplug(p_ddev);
p_ddev->render->dev = adev->xcp_mgr->xcp[i].rdev;
p_ddev->primary->dev = adev->xcp_mgr->xcp[i].pdev;
p_ddev->driver = adev->xcp_mgr->xcp[i].driver;
p_ddev->vma_offset_manager = adev->xcp_mgr->xcp[i].vma_offset_manager;
}
}
int amdgpu_xcp_open_device(struct amdgpu_device *adev,
drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h
+4
View File
@@ -77,6 +77,10 @@ struct amdgpu_xcp {
bool valid;
atomic_t ref_cnt;
struct drm_device *ddev;
struct drm_device *rdev;
struct drm_device *pdev;
struct drm_driver *driver;
struct drm_vma_offset_manager *vma_offset_manager;
struct amdgpu_sched gpu_sched[AMDGPU_HW_IP_NUM][AMDGPU_RING_PRIO_MAX];
};