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drm/xe/mmio: grab mem_access in xe_mmio_ioctl

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Any kind of device memory access should first ensure the device is not
suspended, mmio included.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Matthew Auld 2023-07-19 09:38:07 +01:00 committed by Rodrigo Vivi
parent 2d3ab1fa31
commit 7da1d76ff6
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/xe/xe_mmio.c
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@ -483,6 +483,7 @@ int xe_mmio_ioctl(struct drm_device *dev, void *data,
*/
reg = XE_REG(args->addr);
xe_device_mem_access_get(xe);
xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
if (args->flags & DRM_XE_MMIO_WRITE) {
@ -526,6 +527,7 @@ int xe_mmio_ioctl(struct drm_device *dev, void *data,
exit:
xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL);
xe_device_mem_access_put(xe);
return ret;
}