[Intel-xe] [PATCH v13 05/10] drm/xe/mmio: grab mem_access in xe_mmio_ioctl

[Matthew Auld]

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

Signed-off-by: Matthew Auld <matthew.auld at intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Reviewed-by: Matthew Brost <matthew.brost at intel.com>
---
 drivers/gpu/drm/xe/xe_mmio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_mmio.c b/drivers/gpu/drm/xe/xe_mmio.c
index 5effb21db9d4..434f7c2cb3c9 100644
--- a/drivers/gpu/drm/xe/xe_mmio.c
+++ b/drivers/gpu/drm/xe/xe_mmio.c
@@ -477,6 +477,7 @@ 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) {
@@ -520,6 +521,7 @@ 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;
 }
-- 
2.41.0