drm/radeon: Move GEM BO to drm_framebuffer

Since drm_framebuffer can now store GEM objects directly, place them
there rather than in our own subclass. As this makes the framebuffer
create_handle and destroy functions the same as the GEM framebuffer
helper, we can reuse those.

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Stone <daniels@collabora.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: David (ChunMing) Zhou <David1.Zhou@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/atombios_crtc.c

@@ -1176,7 +1176,7 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
 	/* If atomic, assume fb object is pinned & idle & fenced and
 	 * just update base pointers
 	 */
-	obj = radeon_fb->obj;
+	obj = radeon_fb->base.obj[0];
 	rbo = gem_to_radeon_bo(obj);
 	r = radeon_bo_reserve(rbo, false);
 	if (unlikely(r != 0))
@@ -1442,7 +1442,7 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
 
 	if (!atomic && fb && fb != crtc->primary->fb) {
 		radeon_fb = to_radeon_framebuffer(fb);
-		rbo = gem_to_radeon_bo(radeon_fb->obj);
+		rbo = gem_to_radeon_bo(radeon_fb->base.obj[0]);
 		r = radeon_bo_reserve(rbo, false);
 		if (unlikely(r != 0))
 			return r;
@@ -1490,7 +1490,7 @@ static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
 		target_fb = crtc->primary->fb;
 	}
 
-	obj = radeon_fb->obj;
+	obj = radeon_fb->base.obj[0];
 	rbo = gem_to_radeon_bo(obj);
 	r = radeon_bo_reserve(rbo, false);
 	if (unlikely(r != 0))
@@ -1642,7 +1642,7 @@ static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
 
 	if (!atomic && fb && fb != crtc->primary->fb) {
 		radeon_fb = to_radeon_framebuffer(fb);
-		rbo = gem_to_radeon_bo(radeon_fb->obj);
+		rbo = gem_to_radeon_bo(radeon_fb->base.obj[0]);
 		r = radeon_bo_reserve(rbo, false);
 		if (unlikely(r != 0))
 			return r;
@@ -2153,7 +2153,7 @@ static void atombios_crtc_disable(struct drm_crtc *crtc)
 		struct radeon_bo *rbo;
 
 		radeon_fb = to_radeon_framebuffer(crtc->primary->fb);
-		rbo = gem_to_radeon_bo(radeon_fb->obj);
+		rbo = gem_to_radeon_bo(radeon_fb->base.obj[0]);
 		r = radeon_bo_reserve(rbo, false);
 		if (unlikely(r))
 			DRM_ERROR("failed to reserve rbo before unpin\n");

drivers/gpu/drm/radeon/radeon_device.c

@@ -1599,10 +1599,10 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend,
 			}
 		}
 
-		if (rfb == NULL || rfb->obj == NULL) {
+		if (rfb == NULL || rfb->base.obj[0] == NULL) {
 			continue;
 		}
-		robj = gem_to_radeon_bo(rfb->obj);
+		robj = gem_to_radeon_bo(rfb->base.obj[0]);
 		/* don't unpin kernel fb objects */
 		if (!radeon_fbdev_robj_is_fb(rdev, robj)) {
 			r = radeon_bo_reserve(robj, false);

drivers/gpu/drm/radeon/radeon_display.c

@@ -32,6 +32,7 @@
 
 #include <linux/pm_runtime.h>
 #include <drm/drm_crtc_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_edid.h>
@@ -502,14 +503,14 @@ static int radeon_crtc_page_flip_target(struct drm_crtc *crtc,
 
 	/* schedule unpin of the old buffer */
 	old_radeon_fb = to_radeon_framebuffer(crtc->primary->fb);
-	obj = old_radeon_fb->obj;
+	obj = old_radeon_fb->base.obj[0];
 
 	/* take a reference to the old object */
 	drm_gem_object_get(obj);
 	work->old_rbo = gem_to_radeon_bo(obj);
 
 	new_radeon_fb = to_radeon_framebuffer(fb);
-	obj = new_radeon_fb->obj;
+	obj = new_radeon_fb->base.obj[0];
 	new_rbo = gem_to_radeon_bo(obj);
 
 	/* pin the new buffer */
@@ -1285,27 +1286,9 @@ void radeon_compute_pll_legacy(struct radeon_pll *pll,
 
 }
 
-static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb)
-{
-	struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
-
-	drm_gem_object_put_unlocked(radeon_fb->obj);
-	drm_framebuffer_cleanup(fb);
-	kfree(radeon_fb);
-}
-
-static int radeon_user_framebuffer_create_handle(struct drm_framebuffer *fb,
-						  struct drm_file *file_priv,
-						  unsigned int *handle)
-{
-	struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
-
-	return drm_gem_handle_create(file_priv, radeon_fb->obj, handle);
-}
-
 static const struct drm_framebuffer_funcs radeon_fb_funcs = {
-	.destroy = radeon_user_framebuffer_destroy,
-	.create_handle = radeon_user_framebuffer_create_handle,
+	.destroy = drm_gem_fb_destroy,
+	.create_handle = drm_gem_fb_create_handle,
 };
 
 int
@@ -1315,11 +1298,11 @@ radeon_framebuffer_init(struct drm_device *dev,
 			struct drm_gem_object *obj)
 {
 	int ret;
-	rfb->obj = obj;
+	rfb->base.obj[0] = obj;
 	drm_helper_mode_fill_fb_struct(dev, &rfb->base, mode_cmd);
 	ret = drm_framebuffer_init(dev, &rfb->base, &radeon_fb_funcs);
 	if (ret) {
-		rfb->obj = NULL;
+		rfb->base.obj[0] = NULL;
 		return ret;
 	}
 	return 0;

drivers/gpu/drm/radeon/radeon_fb.c

@@ -312,9 +312,9 @@ static int radeon_fbdev_destroy(struct drm_device *dev, struct radeon_fbdev *rfb
 
 	drm_fb_helper_unregister_fbi(&rfbdev->helper);
 
-	if (rfb->obj) {
-		radeonfb_destroy_pinned_object(rfb->obj);
-		rfb->obj = NULL;
+	if (rfb->base.obj[0]) {
+		radeonfb_destroy_pinned_object(rfb->base.obj[0]);
+		rfb->base.obj[0] = NULL;
 		drm_framebuffer_unregister_private(&rfb->base);
 		drm_framebuffer_cleanup(&rfb->base);
 	}
@@ -400,7 +400,7 @@ bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj)
 	if (!rdev->mode_info.rfbdev)
 		return false;
 
-	if (robj == gem_to_radeon_bo(rdev->mode_info.rfbdev->rfb.obj))
+	if (robj == gem_to_radeon_bo(rdev->mode_info.rfbdev->rfb.base.obj[0]))
 		return true;
 	return false;
 }

drivers/gpu/drm/radeon/radeon_legacy_crtc.c

@@ -423,7 +423,7 @@ int radeon_crtc_do_set_base(struct drm_crtc *crtc,
 	}
 
 	/* Pin framebuffer & get tilling informations */
-	obj = radeon_fb->obj;
+	obj = radeon_fb->base.obj[0];
 	rbo = gem_to_radeon_bo(obj);
 retry:
 	r = radeon_bo_reserve(rbo, false);
@@ -451,7 +451,7 @@ retry:
 			struct radeon_bo *old_rbo;
 			unsigned long nsize, osize;
 
-			old_rbo = gem_to_radeon_bo(to_radeon_framebuffer(fb)->obj);
+			old_rbo = gem_to_radeon_bo(fb->obj[0]);
 			osize = radeon_bo_size(old_rbo);
 			nsize = radeon_bo_size(rbo);
 			if (nsize <= osize && !radeon_bo_reserve(old_rbo, false)) {
@@ -558,8 +558,7 @@ retry:
 	WREG32(RADEON_CRTC_PITCH + radeon_crtc->crtc_offset, crtc_pitch);
 
 	if (!atomic && fb && fb != crtc->primary->fb) {
-		radeon_fb = to_radeon_framebuffer(fb);
-		rbo = gem_to_radeon_bo(radeon_fb->obj);
+		rbo = gem_to_radeon_bo(fb->obj[0]);
 		r = radeon_bo_reserve(rbo, false);
 		if (unlikely(r != 0))
 			return r;
@@ -1093,11 +1092,9 @@ static void radeon_crtc_disable(struct drm_crtc *crtc)
 	radeon_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
 	if (crtc->primary->fb) {
 		int r;
-		struct radeon_framebuffer *radeon_fb;
 		struct radeon_bo *rbo;
 
-		radeon_fb = to_radeon_framebuffer(crtc->primary->fb);
-		rbo = gem_to_radeon_bo(radeon_fb->obj);
+		rbo = gem_to_radeon_bo(crtc->primary->fb->obj[0]);
 		r = radeon_bo_reserve(rbo, false);
 		if (unlikely(r))
 			DRM_ERROR("failed to reserve rbo before unpin\n");

drivers/gpu/drm/radeon/radeon_mode.h

@@ -576,7 +576,6 @@ struct radeon_connector {
 
 struct radeon_framebuffer {
 	struct drm_framebuffer base;
-	struct drm_gem_object *obj;
 };
 
 #define ENCODER_MODE_IS_DP(em) (((em) == ATOM_ENCODER_MODE_DP) || \