From: Matthew Brost <matthew.brost@intel.com>
Date: Tue, 26 Nov 2024 17:46:08 +0000 (-0800)
Subject: drm/xe: Add xe_bo_vm_access
X-Git-Tag: v6.14-rc1~174^2~17^2~35
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f85dc3c5abddaa6ef3674755f28cf49774d27ea5;p=thirdparty%2Fkernel%2Flinux.git

drm/xe: Add xe_bo_vm_access

Add xe_bo_vm_access which is wrapper around ttm_bo_vm_access which takes
rpm refs for device access.

Suggested-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241126174615.2665852-2-matthew.brost@intel.com
---

diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c
index ec070af126628..aaf54131c89e4 100644
--- a/drivers/gpu/drm/xe/xe_bo.c
+++ b/drivers/gpu/drm/xe/xe_bo.c
@@ -1249,11 +1249,26 @@ out:
 	return ret;
 }
 
+static int xe_bo_vm_access(struct vm_area_struct *vma, unsigned long addr,
+			   void *buf, int len, int write)
+{
+	struct ttm_buffer_object *ttm_bo = vma->vm_private_data;
+	struct xe_bo *bo = ttm_to_xe_bo(ttm_bo);
+	struct xe_device *xe = xe_bo_device(bo);
+	int ret;
+
+	xe_pm_runtime_get(xe);
+	ret = ttm_bo_vm_access(vma, addr, buf, len, write);
+	xe_pm_runtime_put(xe);
+
+	return ret;
+}
+
 static const struct vm_operations_struct xe_gem_vm_ops = {
 	.fault = xe_gem_fault,
 	.open = ttm_bo_vm_open,
 	.close = ttm_bo_vm_close,
-	.access = ttm_bo_vm_access
+	.access = xe_bo_vm_access,
 };
 
 static const struct drm_gem_object_funcs xe_gem_object_funcs = {