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drm/xe/debugfs: grab mem_access around forcewake

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We need keep the device awake when performing any kind of mmio operation.

Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/279
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Matthew Auld 2023-07-19 09:38:05 +01:00 committed by Rodrigo Vivi
parent 2d30332a5e
commit 6bfbd0c589
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/xe/xe_debugfs.c
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@ -70,6 +70,8 @@ static int forcewake_open(struct inode *inode, struct file *file)
struct xe_gt *gt;
u8 id;
xe_device_mem_access_get(xe);
for_each_gt(gt, xe, id)
XE_WARN_ON(xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL));
@ -85,6 +87,8 @@ static int forcewake_release(struct inode *inode, struct file *file)
for_each_gt(gt, xe, id)
XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL));
xe_device_mem_access_put(xe);
return 0;
}