linux-kernel - [PATCH 1/1] Refactor radeon driver to use drm_gem_create_map_offset() instead of its custom implementation for associating GEM object with a fake offset. Since, we already have a generic implementation, we don't need the custom function and it is better to standardize the code.

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Message-Id: <20240106141422.10734-1-dipamt1729@gmail.com>
Date: Sat,  6 Jan 2024 19:44:23 +0530
From: Dipam Turkar <dipamt1729@...il.com>
To: alexander.deucher@....com
Cc: christian.koenig@....com,
	Xinhui.Pan@....com,
	airlied@...il.com,
	daniel@...ll.ch,
	amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	Dipam Turkar <dipamt1729@...il.com>
Subject: [PATCH 1/1] Refactor radeon driver to use drm_gem_create_map_offset() instead of its custom implementation for associating GEM object with a fake offset. Since, we already have a generic implementation, we don't need the custom function and it is better to standardize the code.

Signed-off-by: Dipam Turkar <dipamt1729@...il.com>
---
 drivers/gpu/drm/radeon/radeon_drv.c |  2 +-
 drivers/gpu/drm/radeon/radeon_gem.c | 24 ++----------------------
 2 files changed, 3 insertions(+), 23 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index fa531493b111..f590ed65ffba 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -578,7 +578,7 @@ static const struct drm_driver kms_driver = {
 	.ioctls = radeon_ioctls_kms,
 	.num_ioctls = ARRAY_SIZE(radeon_ioctls_kms),
 	.dumb_create = radeon_mode_dumb_create,
-	.dumb_map_offset = radeon_mode_dumb_mmap,
+	.dumb_map_offset = drm_gem_dumb_map_offset,
 	.fops = &radeon_driver_kms_fops,
 
 	.gem_prime_import_sg_table = radeon_gem_prime_import_sg_table,
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index 358d19242f4b..99794c550d2c 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -31,6 +31,7 @@
 
 #include <drm/drm_device.h>
 #include <drm/drm_file.h>
+#include <drm/dem_gem.h>
 #include <drm/drm_gem_ttm_helper.h>
 #include <drm/radeon_drm.h>
 
@@ -480,33 +481,12 @@ int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
 	return r;
 }
 
-int radeon_mode_dumb_mmap(struct drm_file *filp,
-			  struct drm_device *dev,
-			  uint32_t handle, uint64_t *offset_p)
-{
-	struct drm_gem_object *gobj;
-	struct radeon_bo *robj;
-
-	gobj = drm_gem_object_lookup(filp, handle);
-	if (gobj == NULL) {
-		return -ENOENT;
-	}
-	robj = gem_to_radeon_bo(gobj);
-	if (radeon_ttm_tt_has_userptr(robj->rdev, robj->tbo.ttm)) {
-		drm_gem_object_put(gobj);
-		return -EPERM;
-	}
-	*offset_p = radeon_bo_mmap_offset(robj);
-	drm_gem_object_put(gobj);
-	return 0;
-}
-
 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
 			  struct drm_file *filp)
 {
 	struct drm_radeon_gem_mmap *args = data;
 
-	return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr);
+	return drm_gem_dumb_map_offset(filp, dev, args->handle, &args->addr_ptr);
 }
 
 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
-- 
2.34.1