Nouveau - Feb 2020 - [PATCH 3/4] drm/nouveau: Remove field nvbo from struct nouveau_framebuffer

All fields in struct nouveau_framebuffer appear to be obsolete. The
data structure can be replaced by struct drm_framebuffer entirely.

Patch 1 removes several unused fields from struct nouveau_framebuffer.

Patch 2 moves the field vma to struct nouveau_fbdev. The information
in vma is only relevant for fbdev emulation, and as such he field is
only used there.

Patch 3 removes nvbo from struct nouveau_framebuffer. The nouveau
buffer object is based on gem, and as such should be stored in obj[0]
of struct drm_framebuffer. This also enables the use of several generic
GEM framebuffer functions.

Finally patch 4 removes struct nouveau_framebuffer. At this point it's
merely a wrapper around struct drm_framebuffer.

The patchset has been smoke-tested on NV34 HW by running fbcon and X11.

Future directions: There are still functions for creating frameuffers.
With further refinements of nouveau's fbcon code, GEM framebuffer helpers
could be used here.

Thomas Zimmermann (4):
  drm/nouveau: Remove unused fields from struct nouveau_framebuffer
  drm/nouveau: Move struct nouveau_framebuffer.vma to struct
    nouveau_fbdev
  drm/nouveau: Remove field nvbo from struct nouveau_framebuffer
  drm/nouveau: Remove struct nouveau_framebuffer

 drivers/gpu/drm/nouveau/dispnv04/crtc.c    | 19 ++++-----
 drivers/gpu/drm/nouveau/dispnv04/disp.c    | 21 +++++-----
 drivers/gpu/drm/nouveau/dispnv04/overlay.c | 21 +++++-----
 drivers/gpu/drm/nouveau/dispnv50/wndw.c    | 45 ++++++++++++---------
 drivers/gpu/drm/nouveau/nouveau_display.c  | 47 ++++++----------------
 drivers/gpu/drm/nouveau/nouveau_display.h  | 25 +++---------
 drivers/gpu/drm/nouveau/nouveau_fbcon.c    | 42 ++++++++++---------
 drivers/gpu/drm/nouveau/nouveau_fbcon.h    |  3 ++
 drivers/gpu/drm/nouveau/nv50_fbcon.c       |  9 ++---
 drivers/gpu/drm/nouveau/nvc0_fbcon.c       |  9 ++---
 10 files changed, 108 insertions(+), 133 deletions(-)

--
2.25.0

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
 drivers/gpu/drm/nouveau/nouveau_display.h | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_display.h
b/drivers/gpu/drm/nouveau/nouveau_display.h
index 6e8e66882e45..e397b3d246e5 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.h
+++ b/drivers/gpu/drm/nouveau/nouveau_display.h
@@ -12,11 +12,6 @@ struct nouveau_framebuffer {
 	struct drm_framebuffer base;
 	struct nouveau_bo *nvbo;
 	struct nouveau_vma *vma;
-	u32 r_handle;
-	u32 r_format;
-	u32 r_pitch;
-	struct nvif_object h_base[4];
-	struct nvif_object h_core;
 };
 
 static inline struct nouveau_framebuffer *
-- 
2.25.0

The vma field of struct nouveau_framebuffer is a special field for the
the accelerated fbdev console. Hence there's at most one single instance
for the active console. Moving it into struct nouveau_fbdev makes struct
nouveau_framebuffer slightly smaller and brings it closer to struct
drm_framebuffer.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
 drivers/gpu/drm/nouveau/nouveau_display.h | 1 -
 drivers/gpu/drm/nouveau/nouveau_fbcon.c   | 6 +++---
 drivers/gpu/drm/nouveau/nouveau_fbcon.h   | 3 +++
 drivers/gpu/drm/nouveau/nv50_fbcon.c      | 9 ++++-----
 drivers/gpu/drm/nouveau/nvc0_fbcon.c      | 9 ++++-----
 5 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_display.h
b/drivers/gpu/drm/nouveau/nouveau_display.h
index e397b3d246e5..0b3eb04b95a7 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.h
+++ b/drivers/gpu/drm/nouveau/nouveau_display.h
@@ -11,7 +11,6 @@
 struct nouveau_framebuffer {
 	struct drm_framebuffer base;
 	struct nouveau_bo *nvbo;
-	struct nouveau_vma *vma;
 };
 
 static inline struct nouveau_framebuffer *
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 0c5cdda3c336..6b2f46b0c115 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -353,7 +353,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
 
 	chan = nouveau_nofbaccel ? NULL : drm->channel;
 	if (chan && device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
-		ret = nouveau_vma_new(nvbo, chan->vmm, &fb->vma);
+		ret = nouveau_vma_new(nvbo, chan->vmm, &fbcon->vma);
 		if (ret) {
 			NV_ERROR(drm, "failed to map fb into chan: %d\n", ret);
 			chan = NULL;
@@ -400,7 +400,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
 
 out_unlock:
 	if (chan)
-		nouveau_vma_del(&fb->vma);
+		nouveau_vma_del(&fbcon->vma);
 	nouveau_bo_unmap(fb->nvbo);
 out_unpin:
 	nouveau_bo_unpin(fb->nvbo);
@@ -419,7 +419,7 @@ nouveau_fbcon_destroy(struct drm_device *dev, struct
nouveau_fbdev *fbcon)
 	drm_fb_helper_fini(&fbcon->helper);
 
 	if (nouveau_fb && nouveau_fb->nvbo) {
-		nouveau_vma_del(&nouveau_fb->vma);
+		nouveau_vma_del(&fbcon->vma);
 		nouveau_bo_unmap(nouveau_fb->nvbo);
 		nouveau_bo_unpin(nouveau_fb->nvbo);
 		drm_framebuffer_put(&nouveau_fb->base);
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.h
b/drivers/gpu/drm/nouveau/nouveau_fbcon.h
index 73a7eeba3973..1796d8824580 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.h
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.h
@@ -31,6 +31,8 @@
 
 #include "nouveau_display.h"
 
+struct nouveau_vma;
+
 struct nouveau_fbdev {
 	struct drm_fb_helper helper; /* must be first */
 	unsigned int saved_flags;
@@ -41,6 +43,7 @@ struct nouveau_fbdev {
 	struct nvif_object gdi;
 	struct nvif_object blit;
 	struct nvif_object twod;
+	struct nouveau_vma *vma;
 
 	struct mutex hotplug_lock;
 	bool hotplug_waiting;
diff --git a/drivers/gpu/drm/nouveau/nv50_fbcon.c
b/drivers/gpu/drm/nouveau/nv50_fbcon.c
index facd18564e0d..47428f79ede8 100644
--- a/drivers/gpu/drm/nouveau/nv50_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nv50_fbcon.c
@@ -149,7 +149,6 @@ int
 nv50_fbcon_accel_init(struct fb_info *info)
 {
 	struct nouveau_fbdev *nfbdev = info->par;
-	struct nouveau_framebuffer *fb = nouveau_framebuffer(nfbdev->helper.fb);
 	struct drm_device *dev = nfbdev->helper.dev;
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_channel *chan = drm->channel;
@@ -240,8 +239,8 @@ nv50_fbcon_accel_init(struct fb_info *info)
 	OUT_RING(chan, info->fix.line_length);
 	OUT_RING(chan, info->var.xres_virtual);
 	OUT_RING(chan, info->var.yres_virtual);
-	OUT_RING(chan, upper_32_bits(fb->vma->addr));
-	OUT_RING(chan, lower_32_bits(fb->vma->addr));
+	OUT_RING(chan, upper_32_bits(nfbdev->vma->addr));
+	OUT_RING(chan, lower_32_bits(nfbdev->vma->addr));
 	BEGIN_NV04(chan, NvSub2D, 0x0230, 2);
 	OUT_RING(chan, format);
 	OUT_RING(chan, 1);
@@ -249,8 +248,8 @@ nv50_fbcon_accel_init(struct fb_info *info)
 	OUT_RING(chan, info->fix.line_length);
 	OUT_RING(chan, info->var.xres_virtual);
 	OUT_RING(chan, info->var.yres_virtual);
-	OUT_RING(chan, upper_32_bits(fb->vma->addr));
-	OUT_RING(chan, lower_32_bits(fb->vma->addr));
+	OUT_RING(chan, upper_32_bits(nfbdev->vma->addr));
+	OUT_RING(chan, lower_32_bits(nfbdev->vma->addr));
 	FIRE_RING(chan);
 
 	return 0;
diff --git a/drivers/gpu/drm/nouveau/nvc0_fbcon.c
b/drivers/gpu/drm/nouveau/nvc0_fbcon.c
index c0deef4fe727..cb56163ed608 100644
--- a/drivers/gpu/drm/nouveau/nvc0_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nvc0_fbcon.c
@@ -150,7 +150,6 @@ nvc0_fbcon_accel_init(struct fb_info *info)
 {
 	struct nouveau_fbdev *nfbdev = info->par;
 	struct drm_device *dev = nfbdev->helper.dev;
-	struct nouveau_framebuffer *fb = nouveau_framebuffer(nfbdev->helper.fb);
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_channel *chan = drm->channel;
 	int ret, format;
@@ -240,8 +239,8 @@ nvc0_fbcon_accel_init(struct fb_info *info)
 	OUT_RING  (chan, info->fix.line_length);
 	OUT_RING  (chan, info->var.xres_virtual);
 	OUT_RING  (chan, info->var.yres_virtual);
-	OUT_RING  (chan, upper_32_bits(fb->vma->addr));
-	OUT_RING  (chan, lower_32_bits(fb->vma->addr));
+	OUT_RING  (chan, upper_32_bits(nfbdev->vma->addr));
+	OUT_RING  (chan, lower_32_bits(nfbdev->vma->addr));
 	BEGIN_NVC0(chan, NvSub2D, 0x0230, 10);
 	OUT_RING  (chan, format);
 	OUT_RING  (chan, 1);
@@ -251,8 +250,8 @@ nvc0_fbcon_accel_init(struct fb_info *info)
 	OUT_RING  (chan, info->fix.line_length);
 	OUT_RING  (chan, info->var.xres_virtual);
 	OUT_RING  (chan, info->var.yres_virtual);
-	OUT_RING  (chan, upper_32_bits(fb->vma->addr));
-	OUT_RING  (chan, lower_32_bits(fb->vma->addr));
+	OUT_RING  (chan, upper_32_bits(nfbdev->vma->addr));
+	OUT_RING  (chan, lower_32_bits(nfbdev->vma->addr));
 	FIRE_RING (chan);
 
 	return 0;
-- 
2.25.0

The buffer object stored in nvbo is also available GEM object in obj[0]
of struct drm_framebuffer. Therefore remove nvbo in favor obj[0] and
replace all references accordingly. This may require an additional cast.

With this change we can already replace nouveau_user_framebuffer_destroy()
and nouveau_user_framebuffer_create_handle() with generic GEM helpers.
Calls to nouveau_framebuffer_new() receive a GEM object.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
 drivers/gpu/drm/nouveau/dispnv04/crtc.c    | 19 ++++++------
 drivers/gpu/drm/nouveau/dispnv04/disp.c    | 21 ++++++-------
 drivers/gpu/drm/nouveau/dispnv04/overlay.c | 21 +++++++------
 drivers/gpu/drm/nouveau/dispnv50/wndw.c    | 25 +++++++++-------
 drivers/gpu/drm/nouveau/nouveau_display.c  | 35 ++++------------------
 drivers/gpu/drm/nouveau/nouveau_display.h  |  9 +++---
 drivers/gpu/drm/nouveau/nouveau_fbcon.c    | 28 +++++++++--------
 7 files changed, 74 insertions(+), 84 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv04/crtc.c
b/drivers/gpu/drm/nouveau/dispnv04/crtc.c
index 37c50ea8f847..ece877c727cd 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/crtc.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/crtc.c
@@ -605,15 +605,16 @@ static int
 nv_crtc_swap_fbs(struct drm_crtc *crtc, struct drm_framebuffer *old_fb)
 {
 	struct nv04_display *disp = nv04_display(crtc->dev);
-	struct nouveau_framebuffer *nvfb =
nouveau_framebuffer(crtc->primary->fb);
+	struct drm_framebuffer *fb = crtc->primary->fb;
+	struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 	int ret;
 
-	ret = nouveau_bo_pin(nvfb->nvbo, TTM_PL_FLAG_VRAM, false);
+	ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM, false);
 	if (ret == 0) {
 		if (disp->image[nv_crtc->index])
 			nouveau_bo_unpin(disp->image[nv_crtc->index]);
-		nouveau_bo_ref(nvfb->nvbo, &disp->image[nv_crtc->index]);
+		nouveau_bo_ref(nvbo, &disp->image[nv_crtc->index]);
 	}
 
 	return ret;
@@ -822,8 +823,8 @@ nv04_crtc_do_mode_set_base(struct drm_crtc *crtc,
 	struct drm_device *dev = crtc->dev;
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nv04_crtc_reg *regp =
&nv04_display(dev)->mode_reg.crtc_reg[nv_crtc->index];
+	struct nouveau_bo *nvbo;
 	struct drm_framebuffer *drm_fb;
-	struct nouveau_framebuffer *fb;
 	int arb_burst, arb_lwm;
 
 	NV_DEBUG(drm, "index %d\n", nv_crtc->index);
@@ -839,13 +840,12 @@ nv04_crtc_do_mode_set_base(struct drm_crtc *crtc,
 	 */
 	if (atomic) {
 		drm_fb = passed_fb;
-		fb = nouveau_framebuffer(passed_fb);
 	} else {
 		drm_fb = crtc->primary->fb;
-		fb = nouveau_framebuffer(crtc->primary->fb);
 	}
 
-	nv_crtc->fb.offset = fb->nvbo->bo.offset;
+	nvbo = nouveau_gem_object(drm_fb->obj[0]);
+	nv_crtc->fb.offset = nvbo->bo.offset;
 
 	if (nv_crtc->lut.depth != drm_fb->format->depth) {
 		nv_crtc->lut.depth = drm_fb->format->depth;
@@ -1143,8 +1143,9 @@ nv04_crtc_page_flip(struct drm_crtc *crtc, struct
drm_framebuffer *fb,
 	const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
 	struct drm_device *dev = crtc->dev;
 	struct nouveau_drm *drm = nouveau_drm(dev);
-	struct nouveau_bo *old_bo =
nouveau_framebuffer(crtc->primary->fb)->nvbo;
-	struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
+	struct drm_framebuffer *old_fb = crtc->primary->fb;
+	struct nouveau_bo *old_bo = nouveau_gem_object(old_fb->obj[0]);
+	struct nouveau_bo *new_bo = nouveau_gem_object(fb->obj[0]);
 	struct nv04_page_flip_state *s;
 	struct nouveau_channel *chan;
 	struct nouveau_cli *cli;
diff --git a/drivers/gpu/drm/nouveau/dispnv04/disp.c
b/drivers/gpu/drm/nouveau/dispnv04/disp.c
index 44ee82d0c9b6..0f4ebefed1fd 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/disp.c
@@ -30,6 +30,7 @@
 #include "nouveau_encoder.h"
 #include "nouveau_connector.h"
 #include "nouveau_bo.h"
+#include "nouveau_gem.h"
 
 #include <nvif/if0004.h>
 
@@ -52,13 +53,13 @@ nv04_display_fini(struct drm_device *dev, bool suspend)
 
 	/* Un-pin FB and cursors so they'll be evicted to system memory. */
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
-		struct nouveau_framebuffer *nouveau_fb;
+		struct drm_framebuffer *fb = crtc->primary->fb;
+		struct nouveau_bo *nvbo;
 
-		nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
-		if (!nouveau_fb || !nouveau_fb->nvbo)
+		if (!fb || !fb->obj[0])
 			continue;
-
-		nouveau_bo_unpin(nouveau_fb->nvbo);
+		nvbo = nouveau_gem_object(fb->obj[0]);
+		nouveau_bo_unpin(nvbo);
 	}
 
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
@@ -104,13 +105,13 @@ nv04_display_init(struct drm_device *dev, bool resume,
bool runtime)
 
 	/* Re-pin FB/cursors. */
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
-		struct nouveau_framebuffer *nouveau_fb;
+		struct drm_framebuffer *fb = crtc->primary->fb;
+		struct nouveau_bo *nvbo;
 
-		nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
-		if (!nouveau_fb || !nouveau_fb->nvbo)
+		if (!fb || !fb->obj[0])
 			continue;
-
-		ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true);
+		nvbo = nouveau_gem_object(fb->obj[0]);
+		ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM, true);
 		if (ret)
 			NV_ERROR(drm, "Could not pin framebuffer\n");
 	}
diff --git a/drivers/gpu/drm/nouveau/dispnv04/overlay.c
b/drivers/gpu/drm/nouveau/dispnv04/overlay.c
index a3a0a73ae8ab..6248fd1dbc6d 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/overlay.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/overlay.c
@@ -31,6 +31,7 @@
 #include "nouveau_bo.h"
 #include "nouveau_connector.h"
 #include "nouveau_display.h"
+#include "nouveau_gem.h"
 #include "nvreg.h"
 #include "disp.h"
 
@@ -120,9 +121,9 @@ nv10_update_plane(struct drm_plane *plane, struct drm_crtc
*crtc,
 	struct nvif_object *dev = &drm->client.device.object;
 	struct nouveau_plane *nv_plane  		container_of(plane, struct nouveau_plane,
base);
-	struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 	struct nouveau_bo *cur = nv_plane->cur;
+	struct nouveau_bo *nvbo;
 	bool flip = nv_plane->flip;
 	int soff = NV_PCRTC0_SIZE * nv_crtc->index;
 	int soff2 = NV_PCRTC0_SIZE * !nv_crtc->index;
@@ -140,17 +141,18 @@ nv10_update_plane(struct drm_plane *plane, struct drm_crtc
*crtc,
 	if (ret)
 		return ret;
 
-	ret = nouveau_bo_pin(nv_fb->nvbo, TTM_PL_FLAG_VRAM, false);
+	nvbo = nouveau_gem_object(fb->obj[0]);
+	ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM, false);
 	if (ret)
 		return ret;
 
-	nv_plane->cur = nv_fb->nvbo;
+	nv_plane->cur = nvbo;
 
 	nvif_mask(dev, NV_PCRTC_ENGINE_CTRL + soff, NV_CRTC_FSEL_OVERLAY,
NV_CRTC_FSEL_OVERLAY);
 	nvif_mask(dev, NV_PCRTC_ENGINE_CTRL + soff2, NV_CRTC_FSEL_OVERLAY, 0);
 
 	nvif_wr32(dev, NV_PVIDEO_BASE(flip), 0);
-	nvif_wr32(dev, NV_PVIDEO_OFFSET_BUFF(flip), nv_fb->nvbo->bo.offset);
+	nvif_wr32(dev, NV_PVIDEO_OFFSET_BUFF(flip), nvbo->bo.offset);
 	nvif_wr32(dev, NV_PVIDEO_SIZE_IN(flip), src_h << 16 | src_w);
 	nvif_wr32(dev, NV_PVIDEO_POINT_IN(flip), src_y << 16 | src_x);
 	nvif_wr32(dev, NV_PVIDEO_DS_DX(flip), (src_w << 20) / crtc_w);
@@ -172,7 +174,7 @@ nv10_update_plane(struct drm_plane *plane, struct drm_crtc
*crtc,
 	if (format & NV_PVIDEO_FORMAT_PLANAR) {
 		nvif_wr32(dev, NV_PVIDEO_UVPLANE_BASE(flip), 0);
 		nvif_wr32(dev, NV_PVIDEO_UVPLANE_OFFSET_BUFF(flip),
-			nv_fb->nvbo->bo.offset + fb->offsets[1]);
+			nvbo->bo.offset + fb->offsets[1]);
 	}
 	nvif_wr32(dev, NV_PVIDEO_FORMAT(flip), format | fb->pitches[0]);
 	nvif_wr32(dev, NV_PVIDEO_STOP, 0);
@@ -368,8 +370,8 @@ nv04_update_plane(struct drm_plane *plane, struct drm_crtc
*crtc,
 	struct nvif_object *dev =
&nouveau_drm(plane->dev)->client.device.object;
 	struct nouveau_plane *nv_plane  		container_of(plane, struct nouveau_plane,
base);
-	struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
 	struct nouveau_bo *cur = nv_plane->cur;
+	struct nouveau_bo *nvbo;
 	uint32_t overlay = 1;
 	int brightness = (nv_plane->brightness - 512) * 62 / 512;
 	int ret, i;
@@ -384,11 +386,12 @@ nv04_update_plane(struct drm_plane *plane, struct drm_crtc
*crtc,
 	if (ret)
 		return ret;
 
-	ret = nouveau_bo_pin(nv_fb->nvbo, TTM_PL_FLAG_VRAM, false);
+	nvbo = nouveau_gem_object(fb->obj[0]);
+	ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM, false);
 	if (ret)
 		return ret;
 
-	nv_plane->cur = nv_fb->nvbo;
+	nv_plane->cur = nvbo;
 
 	nvif_wr32(dev, NV_PVIDEO_OE_STATE, 0);
 	nvif_wr32(dev, NV_PVIDEO_SU_STATE, 0);
@@ -396,7 +399,7 @@ nv04_update_plane(struct drm_plane *plane, struct drm_crtc
*crtc,
 
 	for (i = 0; i < 2; i++) {
 		nvif_wr32(dev, NV_PVIDEO_BUFF0_START_ADDRESS + 4 * i,
-			  nv_fb->nvbo->bo.offset);
+			  nvbo->bo.offset);
 		nvif_wr32(dev, NV_PVIDEO_BUFF0_PITCH_LENGTH + 4 * i,
 			  fb->pitches[0]);
 		nvif_wr32(dev, NV_PVIDEO_BUFF0_OFFSET + 4 * i, 0);
diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.c
b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
index 890315291b01..ba1399965a1c 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/wndw.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
@@ -29,6 +29,7 @@
 #include <drm/drm_fourcc.h>
 
 #include "nouveau_bo.h"
+#include "nouveau_gem.h"
 
 static void
 nv50_wndw_ctxdma_del(struct nv50_wndw_ctxdma *ctxdma)
@@ -43,7 +44,8 @@ nv50_wndw_ctxdma_new(struct nv50_wndw *wndw, struct
nouveau_framebuffer *fb)
 {
 	struct nouveau_drm *drm = nouveau_drm(fb->base.dev);
 	struct nv50_wndw_ctxdma *ctxdma;
-	const u8    kind = fb->nvbo->kind;
+	struct nouveau_bo *nvbo = nouveau_gem_object(fb->base.obj[0]);
+	const u8    kind = nvbo->kind;
 	const u32 handle = 0xfb000000 | kind;
 	struct {
 		struct nv_dma_v0 base;
@@ -236,6 +238,7 @@ nv50_wndw_atomic_check_acquire(struct nv50_wndw *wndw, bool
modeset,
 {
 	struct nouveau_framebuffer *fb = nouveau_framebuffer(asyw->state.fb);
 	struct nouveau_drm *drm = nouveau_drm(wndw->plane.dev);
+	struct nouveau_bo *nvbo = nouveau_gem_object(fb->base.obj[0]);
 	int ret;
 
 	NV_ATOMIC(drm, "%s acquire\n", wndw->plane.name);
@@ -243,7 +246,7 @@ nv50_wndw_atomic_check_acquire(struct nv50_wndw *wndw, bool
modeset,
 	if (asyw->state.fb != armw->state.fb || !armw->visible || modeset) {
 		asyw->image.w = fb->base.width;
 		asyw->image.h = fb->base.height;
-		asyw->image.kind = fb->nvbo->kind;
+		asyw->image.kind = nvbo->kind;
 
 		ret = nv50_wndw_atomic_check_acquire_rgb(asyw);
 		if (ret) {
@@ -255,9 +258,9 @@ nv50_wndw_atomic_check_acquire(struct nv50_wndw *wndw, bool
modeset,
 		if (asyw->image.kind) {
 			asyw->image.layout = 0;
 			if (drm->client.device.info.chipset >= 0xc0)
-				asyw->image.blockh = fb->nvbo->mode >> 4;
+				asyw->image.blockh = nvbo->mode >> 4;
 			else
-				asyw->image.blockh = fb->nvbo->mode;
+				asyw->image.blockh = nvbo->mode;
 			asyw->image.blocks[0] = fb->base.pitches[0] / 64;
 			asyw->image.pitch[0] = 0;
 		} else {
@@ -469,14 +472,15 @@ nv50_wndw_atomic_check(struct drm_plane *plane, struct
drm_plane_state *state)
 static void
 nv50_wndw_cleanup_fb(struct drm_plane *plane, struct drm_plane_state
*old_state)
 {
-	struct nouveau_framebuffer *fb = nouveau_framebuffer(old_state->fb);
 	struct nouveau_drm *drm = nouveau_drm(plane->dev);
+	struct nouveau_bo *nvbo;
 
 	NV_ATOMIC(drm, "%s cleanup: %p\n", plane->name,
old_state->fb);
 	if (!old_state->fb)
 		return;
 
-	nouveau_bo_unpin(fb->nvbo);
+	nvbo = nouveau_gem_object(old_state->fb->obj[0]);
+	nouveau_bo_unpin(nvbo);
 }
 
 static int
@@ -486,6 +490,7 @@ nv50_wndw_prepare_fb(struct drm_plane *plane, struct
drm_plane_state *state)
 	struct nouveau_drm *drm = nouveau_drm(plane->dev);
 	struct nv50_wndw *wndw = nv50_wndw(plane);
 	struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
+	struct nouveau_bo *nvbo = nouveau_gem_object(state->fb->obj[0]);
 	struct nv50_head_atom *asyh;
 	struct nv50_wndw_ctxdma *ctxdma;
 	int ret;
@@ -494,22 +499,22 @@ nv50_wndw_prepare_fb(struct drm_plane *plane, struct
drm_plane_state *state)
 	if (!asyw->state.fb)
 		return 0;
 
-	ret = nouveau_bo_pin(fb->nvbo, TTM_PL_FLAG_VRAM, true);
+	ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM, true);
 	if (ret)
 		return ret;
 
 	if (wndw->ctxdma.parent) {
 		ctxdma = nv50_wndw_ctxdma_new(wndw, fb);
 		if (IS_ERR(ctxdma)) {
-			nouveau_bo_unpin(fb->nvbo);
+			nouveau_bo_unpin(nvbo);
 			return PTR_ERR(ctxdma);
 		}
 
 		asyw->image.handle[0] = ctxdma->object.handle;
 	}
 
-	asyw->state.fence = dma_resv_get_excl_rcu(fb->nvbo->bo.base.resv);
-	asyw->image.offset[0] = fb->nvbo->bo.offset;
+	asyw->state.fence = dma_resv_get_excl_rcu(nvbo->bo.base.resv);
+	asyw->image.offset[0] = nvbo->bo.offset;
 
 	if (wndw->func->prepare) {
 		asyh = nv50_head_atom_get(asyw->state.state, asyw->state.crtc);
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c
b/drivers/gpu/drm/nouveau/nouveau_display.c
index 53f9bceaf17a..bbbff55eb5d5 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -31,6 +31,7 @@
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_probe_helper.h>
 #include <drm/drm_vblank.h>
 
@@ -197,37 +198,15 @@ nouveau_display_vblank_init(struct drm_device *dev)
 	return 0;
 }
 
-static void
-nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
-{
-	struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
-
-	if (fb->nvbo)
-		drm_gem_object_put_unlocked(&fb->nvbo->bo.base);
-
-	drm_framebuffer_cleanup(drm_fb);
-	kfree(fb);
-}
-
-static int
-nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
-				       struct drm_file *file_priv,
-				       unsigned int *handle)
-{
-	struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
-
-	return drm_gem_handle_create(file_priv, &fb->nvbo->bo.base, handle);
-}
-
 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
-	.destroy = nouveau_user_framebuffer_destroy,
-	.create_handle = nouveau_user_framebuffer_create_handle,
+	.destroy = drm_gem_fb_destroy,
+	.create_handle = drm_gem_fb_create_handle,
 };
 
 int
 nouveau_framebuffer_new(struct drm_device *dev,
 			const struct drm_mode_fb_cmd2 *mode_cmd,
-			struct nouveau_bo *nvbo,
+			struct drm_gem_object *gem,
 			struct nouveau_framebuffer **pfb)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
@@ -258,7 +237,7 @@ nouveau_framebuffer_new(struct drm_device *dev,
 		return -ENOMEM;
 
 	drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd);
-	fb->nvbo = nvbo;
+	fb->base.obj[0] = gem;
 
 	ret = drm_framebuffer_init(dev, &fb->base,
&nouveau_framebuffer_funcs);
 	if (ret)
@@ -272,16 +251,14 @@ nouveau_user_framebuffer_create(struct drm_device *dev,
 				const struct drm_mode_fb_cmd2 *mode_cmd)
 {
 	struct nouveau_framebuffer *fb;
-	struct nouveau_bo *nvbo;
 	struct drm_gem_object *gem;
 	int ret;
 
 	gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 	if (!gem)
 		return ERR_PTR(-ENOENT);
-	nvbo = nouveau_gem_object(gem);
 
-	ret = nouveau_framebuffer_new(dev, mode_cmd, nvbo, &fb);
+	ret = nouveau_framebuffer_new(dev, mode_cmd, gem, &fb);
 	if (ret == 0)
 		return &fb->base;
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.h
b/drivers/gpu/drm/nouveau/nouveau_display.h
index 0b3eb04b95a7..56c1dec8fc28 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.h
+++ b/drivers/gpu/drm/nouveau/nouveau_display.h
@@ -10,7 +10,6 @@
 
 struct nouveau_framebuffer {
 	struct drm_framebuffer base;
-	struct nouveau_bo *nvbo;
 };
 
 static inline struct nouveau_framebuffer *
@@ -19,9 +18,11 @@ nouveau_framebuffer(struct drm_framebuffer *fb)
 	return container_of(fb, struct nouveau_framebuffer, base);
 }
 
-int nouveau_framebuffer_new(struct drm_device *,
-			    const struct drm_mode_fb_cmd2 *,
-			    struct nouveau_bo *, struct nouveau_framebuffer **);
+int
+nouveau_framebuffer_new(struct drm_device *dev,
+			const struct drm_mode_fb_cmd2 *mode_cmd,
+			struct drm_gem_object *gem,
+			struct nouveau_framebuffer **pfb);
 
 struct nouveau_display {
 	void *priv;
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 6b2f46b0c115..02b36b44409c 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -335,7 +335,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
 		goto out;
 	}
 
-	ret = nouveau_framebuffer_new(dev, &mode_cmd, nvbo, &fb);
+	ret = nouveau_framebuffer_new(dev, &mode_cmd, &nvbo->bo.base,
&fb);
 	if (ret)
 		goto out_unref;
 
@@ -376,12 +376,12 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
 			      FBINFO_HWACCEL_FILLRECT |
 			      FBINFO_HWACCEL_IMAGEBLIT;
 	info->fbops = &nouveau_fbcon_sw_ops;
-	info->fix.smem_start = fb->nvbo->bo.mem.bus.base +
-			       fb->nvbo->bo.mem.bus.offset;
-	info->fix.smem_len = fb->nvbo->bo.mem.num_pages << PAGE_SHIFT;
+	info->fix.smem_start = nvbo->bo.mem.bus.base +
+			       nvbo->bo.mem.bus.offset;
+	info->fix.smem_len = nvbo->bo.mem.num_pages << PAGE_SHIFT;
 
-	info->screen_base = nvbo_kmap_obj_iovirtual(fb->nvbo);
-	info->screen_size = fb->nvbo->bo.mem.num_pages << PAGE_SHIFT;
+	info->screen_base = nvbo_kmap_obj_iovirtual(nvbo);
+	info->screen_size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
 
 	drm_fb_helper_fill_info(info, &fbcon->helper, sizes);
 
@@ -393,7 +393,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
 
 	/* To allow resizeing without swapping buffers */
 	NV_INFO(drm, "allocated %dx%d fb: 0x%llx, bo %p\n",
-		fb->base.width, fb->base.height, fb->nvbo->bo.offset, nvbo);
+		fb->base.width, fb->base.height, nvbo->bo.offset, nvbo);
 
 	vga_switcheroo_client_fb_set(dev->pdev, info);
 	return 0;
@@ -401,11 +401,11 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
 out_unlock:
 	if (chan)
 		nouveau_vma_del(&fbcon->vma);
-	nouveau_bo_unmap(fb->nvbo);
+	nouveau_bo_unmap(nvbo);
 out_unpin:
-	nouveau_bo_unpin(fb->nvbo);
+	nouveau_bo_unpin(nvbo);
 out_unref:
-	nouveau_bo_ref(NULL, &fb->nvbo);
+	nouveau_bo_ref(NULL, &nvbo);
 out:
 	return ret;
 }
@@ -414,14 +414,16 @@ static int
 nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *fbcon)
 {
 	struct nouveau_framebuffer *nouveau_fb =
nouveau_framebuffer(fbcon->helper.fb);
+	struct nouveau_bo *nvbo;
 
 	drm_fb_helper_unregister_fbi(&fbcon->helper);
 	drm_fb_helper_fini(&fbcon->helper);
 
-	if (nouveau_fb && nouveau_fb->nvbo) {
+	if (nouveau_fb && nouveau_fb->base.obj[0]) {
+		nvbo = nouveau_gem_object(nouveau_fb->base.obj[0]);
 		nouveau_vma_del(&fbcon->vma);
-		nouveau_bo_unmap(nouveau_fb->nvbo);
-		nouveau_bo_unpin(nouveau_fb->nvbo);
+		nouveau_bo_unmap(nvbo);
+		nouveau_bo_unpin(nvbo);
 		drm_framebuffer_put(&nouveau_fb->base);
 	}
 
-- 
2.25.0

After its cleanup, struct nouveau_framebuffer is only a wrapper around
struct drm_framebuffer. Use the latter directly.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
 drivers/gpu/drm/nouveau/dispnv50/wndw.c   | 26 +++++++++++------------
 drivers/gpu/drm/nouveau/nouveau_display.c | 14 ++++++------
 drivers/gpu/drm/nouveau/nouveau_display.h | 12 +----------
 drivers/gpu/drm/nouveau/nouveau_fbcon.c   | 14 ++++++------
 4 files changed, 28 insertions(+), 38 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.c
b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
index ba1399965a1c..4a67a656e007 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/wndw.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
@@ -40,11 +40,11 @@ nv50_wndw_ctxdma_del(struct nv50_wndw_ctxdma *ctxdma)
 }
 
 static struct nv50_wndw_ctxdma *
-nv50_wndw_ctxdma_new(struct nv50_wndw *wndw, struct nouveau_framebuffer *fb)
+nv50_wndw_ctxdma_new(struct nv50_wndw *wndw, struct drm_framebuffer *fb)
 {
-	struct nouveau_drm *drm = nouveau_drm(fb->base.dev);
+	struct nouveau_drm *drm = nouveau_drm(fb->dev);
 	struct nv50_wndw_ctxdma *ctxdma;
-	struct nouveau_bo *nvbo = nouveau_gem_object(fb->base.obj[0]);
+	struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
 	const u8    kind = nvbo->kind;
 	const u32 handle = 0xfb000000 | kind;
 	struct {
@@ -236,16 +236,16 @@ nv50_wndw_atomic_check_acquire(struct nv50_wndw *wndw,
bool modeset,
 			       struct nv50_wndw_atom *asyw,
 			       struct nv50_head_atom *asyh)
 {
-	struct nouveau_framebuffer *fb = nouveau_framebuffer(asyw->state.fb);
+	struct drm_framebuffer *fb = asyw->state.fb;
 	struct nouveau_drm *drm = nouveau_drm(wndw->plane.dev);
-	struct nouveau_bo *nvbo = nouveau_gem_object(fb->base.obj[0]);
+	struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
 	int ret;
 
 	NV_ATOMIC(drm, "%s acquire\n", wndw->plane.name);
 
-	if (asyw->state.fb != armw->state.fb || !armw->visible || modeset) {
-		asyw->image.w = fb->base.width;
-		asyw->image.h = fb->base.height;
+	if (fb != armw->state.fb || !armw->visible || modeset) {
+		asyw->image.w = fb->width;
+		asyw->image.h = fb->height;
 		asyw->image.kind = nvbo->kind;
 
 		ret = nv50_wndw_atomic_check_acquire_rgb(asyw);
@@ -261,13 +261,13 @@ nv50_wndw_atomic_check_acquire(struct nv50_wndw *wndw,
bool modeset,
 				asyw->image.blockh = nvbo->mode >> 4;
 			else
 				asyw->image.blockh = nvbo->mode;
-			asyw->image.blocks[0] = fb->base.pitches[0] / 64;
+			asyw->image.blocks[0] = fb->pitches[0] / 64;
 			asyw->image.pitch[0] = 0;
 		} else {
 			asyw->image.layout = 1;
 			asyw->image.blockh = 0;
 			asyw->image.blocks[0] = 0;
-			asyw->image.pitch[0] = fb->base.pitches[0];
+			asyw->image.pitch[0] = fb->pitches[0];
 		}
 
 		if (!asyh->state.async_flip)
@@ -486,16 +486,16 @@ nv50_wndw_cleanup_fb(struct drm_plane *plane, struct
drm_plane_state *old_state)
 static int
 nv50_wndw_prepare_fb(struct drm_plane *plane, struct drm_plane_state *state)
 {
-	struct nouveau_framebuffer *fb = nouveau_framebuffer(state->fb);
+	struct drm_framebuffer *fb = state->fb;
 	struct nouveau_drm *drm = nouveau_drm(plane->dev);
 	struct nv50_wndw *wndw = nv50_wndw(plane);
 	struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
-	struct nouveau_bo *nvbo = nouveau_gem_object(state->fb->obj[0]);
+	struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
 	struct nv50_head_atom *asyh;
 	struct nv50_wndw_ctxdma *ctxdma;
 	int ret;
 
-	NV_ATOMIC(drm, "%s prepare: %p\n", plane->name, state->fb);
+	NV_ATOMIC(drm, "%s prepare: %p\n", plane->name, fb);
 	if (!asyw->state.fb)
 		return 0;
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c
b/drivers/gpu/drm/nouveau/nouveau_display.c
index bbbff55eb5d5..94f7fd48e1cf 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -207,10 +207,10 @@ int
 nouveau_framebuffer_new(struct drm_device *dev,
 			const struct drm_mode_fb_cmd2 *mode_cmd,
 			struct drm_gem_object *gem,
-			struct nouveau_framebuffer **pfb)
+			struct drm_framebuffer **pfb)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
-	struct nouveau_framebuffer *fb;
+	struct drm_framebuffer *fb;
 	int ret;
 
         /* YUV overlays have special requirements pre-NV50 */
@@ -236,10 +236,10 @@ nouveau_framebuffer_new(struct drm_device *dev,
 	if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
 		return -ENOMEM;
 
-	drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd);
-	fb->base.obj[0] = gem;
+	drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
+	fb->obj[0] = gem;
 
-	ret = drm_framebuffer_init(dev, &fb->base,
&nouveau_framebuffer_funcs);
+	ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
 	if (ret)
 		kfree(fb);
 	return ret;
@@ -250,7 +250,7 @@ nouveau_user_framebuffer_create(struct drm_device *dev,
 				struct drm_file *file_priv,
 				const struct drm_mode_fb_cmd2 *mode_cmd)
 {
-	struct nouveau_framebuffer *fb;
+	struct drm_framebuffer *fb;
 	struct drm_gem_object *gem;
 	int ret;
 
@@ -260,7 +260,7 @@ nouveau_user_framebuffer_create(struct drm_device *dev,
 
 	ret = nouveau_framebuffer_new(dev, mode_cmd, gem, &fb);
 	if (ret == 0)
-		return &fb->base;
+		return fb;
 
 	drm_gem_object_put_unlocked(gem);
 	return ERR_PTR(ret);
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.h
b/drivers/gpu/drm/nouveau/nouveau_display.h
index 56c1dec8fc28..082bb067d575 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.h
+++ b/drivers/gpu/drm/nouveau/nouveau_display.h
@@ -8,21 +8,11 @@
 
 #include <drm/drm_framebuffer.h>
 
-struct nouveau_framebuffer {
-	struct drm_framebuffer base;
-};
-
-static inline struct nouveau_framebuffer *
-nouveau_framebuffer(struct drm_framebuffer *fb)
-{
-	return container_of(fb, struct nouveau_framebuffer, base);
-}
-
 int
 nouveau_framebuffer_new(struct drm_device *dev,
 			const struct drm_mode_fb_cmd2 *mode_cmd,
 			struct drm_gem_object *gem,
-			struct nouveau_framebuffer **pfb);
+			struct drm_framebuffer **pfb);
 
 struct nouveau_display {
 	void *priv;
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 02b36b44409c..d78bc03ad3b8 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -312,7 +312,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nvif_device *device = &drm->client.device;
 	struct fb_info *info;
-	struct nouveau_framebuffer *fb;
+	struct drm_framebuffer *fb;
 	struct nouveau_channel *chan;
 	struct nouveau_bo *nvbo;
 	struct drm_mode_fb_cmd2 mode_cmd;
@@ -367,7 +367,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
 	}
 
 	/* setup helper */
-	fbcon->helper.fb = &fb->base;
+	fbcon->helper.fb = fb;
 
 	if (!chan)
 		info->flags = FBINFO_HWACCEL_DISABLED;
@@ -393,7 +393,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
 
 	/* To allow resizeing without swapping buffers */
 	NV_INFO(drm, "allocated %dx%d fb: 0x%llx, bo %p\n",
-		fb->base.width, fb->base.height, nvbo->bo.offset, nvbo);
+		fb->width, fb->height, nvbo->bo.offset, nvbo);
 
 	vga_switcheroo_client_fb_set(dev->pdev, info);
 	return 0;
@@ -413,18 +413,18 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
 static int
 nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *fbcon)
 {
-	struct nouveau_framebuffer *nouveau_fb =
nouveau_framebuffer(fbcon->helper.fb);
+	struct drm_framebuffer *fb = fbcon->helper.fb;
 	struct nouveau_bo *nvbo;
 
 	drm_fb_helper_unregister_fbi(&fbcon->helper);
 	drm_fb_helper_fini(&fbcon->helper);
 
-	if (nouveau_fb && nouveau_fb->base.obj[0]) {
-		nvbo = nouveau_gem_object(nouveau_fb->base.obj[0]);
+	if (fb && fb->obj[0]) {
+		nvbo = nouveau_gem_object(fb->obj[0]);
 		nouveau_vma_del(&fbcon->vma);
 		nouveau_bo_unmap(nvbo);
 		nouveau_bo_unpin(nvbo);
-		drm_framebuffer_put(&nouveau_fb->base);
+		drm_framebuffer_put(fb);
 	}
 
 	return 0;
-- 
2.25.0

Note I'm adding some fields to nouveau_framebuffer in the series 
"drm/nouveau: Support NVIDIA format modifiers."  I sent out v3 of that
yesterday.  It would probably still be possible to avoid them by 
re-extracting the relevant data from the format modifier on the fly when 
needed, but it is simpler and likely less error-prone with the wrapper 
struct.

Thanks,
-James

On 2/6/20 2:19 AM, Thomas Zimmermann wrote:
> After its cleanup, struct nouveau_framebuffer is only a wrapper around
> struct drm_framebuffer. Use the latter directly.
> 
> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
> ---
>   drivers/gpu/drm/nouveau/dispnv50/wndw.c   | 26 +++++++++++------------
>   drivers/gpu/drm/nouveau/nouveau_display.c | 14 ++++++------
>   drivers/gpu/drm/nouveau/nouveau_display.h | 12 +----------
>   drivers/gpu/drm/nouveau/nouveau_fbcon.c   | 14 ++++++------
>   4 files changed, 28 insertions(+), 38 deletions(-)
> 
> diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.c
b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
> index ba1399965a1c..4a67a656e007 100644
> --- a/drivers/gpu/drm/nouveau/dispnv50/wndw.c
> +++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
> @@ -40,11 +40,11 @@ nv50_wndw_ctxdma_del(struct nv50_wndw_ctxdma *ctxdma)
>   }
>   
>   static struct nv50_wndw_ctxdma *
> -nv50_wndw_ctxdma_new(struct nv50_wndw *wndw, struct nouveau_framebuffer
*fb)
> +nv50_wndw_ctxdma_new(struct nv50_wndw *wndw, struct drm_framebuffer *fb)
>   {
> -	struct nouveau_drm *drm = nouveau_drm(fb->base.dev);
> +	struct nouveau_drm *drm = nouveau_drm(fb->dev);
>   	struct nv50_wndw_ctxdma *ctxdma;
> -	struct nouveau_bo *nvbo = nouveau_gem_object(fb->base.obj[0]);
> +	struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
>   	const u8    kind = nvbo->kind;
>   	const u32 handle = 0xfb000000 | kind;
>   	struct {
> @@ -236,16 +236,16 @@ nv50_wndw_atomic_check_acquire(struct nv50_wndw
*wndw, bool modeset,
>   			       struct nv50_wndw_atom *asyw,
>   			       struct nv50_head_atom *asyh)
>   {
> -	struct nouveau_framebuffer *fb = nouveau_framebuffer(asyw->state.fb);
> +	struct drm_framebuffer *fb = asyw->state.fb;
>   	struct nouveau_drm *drm = nouveau_drm(wndw->plane.dev);
> -	struct nouveau_bo *nvbo = nouveau_gem_object(fb->base.obj[0]);
> +	struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
>   	int ret;
>   
>   	NV_ATOMIC(drm, "%s acquire\n", wndw->plane.name);
>   
> -	if (asyw->state.fb != armw->state.fb || !armw->visible ||
modeset) {
> -		asyw->image.w = fb->base.width;
> -		asyw->image.h = fb->base.height;
> +	if (fb != armw->state.fb || !armw->visible || modeset) {
> +		asyw->image.w = fb->width;
> +		asyw->image.h = fb->height;
>   		asyw->image.kind = nvbo->kind;
>   
>   		ret = nv50_wndw_atomic_check_acquire_rgb(asyw);
> @@ -261,13 +261,13 @@ nv50_wndw_atomic_check_acquire(struct nv50_wndw
*wndw, bool modeset,
>   				asyw->image.blockh = nvbo->mode >> 4;
>   			else
>   				asyw->image.blockh = nvbo->mode;
> -			asyw->image.blocks[0] = fb->base.pitches[0] / 64;
> +			asyw->image.blocks[0] = fb->pitches[0] / 64;
>   			asyw->image.pitch[0] = 0;
>   		} else {
>   			asyw->image.layout = 1;
>   			asyw->image.blockh = 0;
>   			asyw->image.blocks[0] = 0;
> -			asyw->image.pitch[0] = fb->base.pitches[0];
> +			asyw->image.pitch[0] = fb->pitches[0];
>   		}
>   
>   		if (!asyh->state.async_flip)
> @@ -486,16 +486,16 @@ nv50_wndw_cleanup_fb(struct drm_plane *plane, struct
drm_plane_state *old_state)
>   static int
>   nv50_wndw_prepare_fb(struct drm_plane *plane, struct drm_plane_state
*state)
>   {
> -	struct nouveau_framebuffer *fb = nouveau_framebuffer(state->fb);
> +	struct drm_framebuffer *fb = state->fb;
>   	struct nouveau_drm *drm = nouveau_drm(plane->dev);
>   	struct nv50_wndw *wndw = nv50_wndw(plane);
>   	struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
> -	struct nouveau_bo *nvbo = nouveau_gem_object(state->fb->obj[0]);
> +	struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
>   	struct nv50_head_atom *asyh;
>   	struct nv50_wndw_ctxdma *ctxdma;
>   	int ret;
>   
> -	NV_ATOMIC(drm, "%s prepare: %p\n", plane->name,
state->fb);
> +	NV_ATOMIC(drm, "%s prepare: %p\n", plane->name, fb);
>   	if (!asyw->state.fb)
>   		return 0;
>   
> diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c
b/drivers/gpu/drm/nouveau/nouveau_display.c
> index bbbff55eb5d5..94f7fd48e1cf 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_display.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_display.c
> @@ -207,10 +207,10 @@ int
>   nouveau_framebuffer_new(struct drm_device *dev,
>   			const struct drm_mode_fb_cmd2 *mode_cmd,
>   			struct drm_gem_object *gem,
> -			struct nouveau_framebuffer **pfb)
> +			struct drm_framebuffer **pfb)
>   {
>   	struct nouveau_drm *drm = nouveau_drm(dev);
> -	struct nouveau_framebuffer *fb;
> +	struct drm_framebuffer *fb;
>   	int ret;
>   
>           /* YUV overlays have special requirements pre-NV50 */
> @@ -236,10 +236,10 @@ nouveau_framebuffer_new(struct drm_device *dev,
>   	if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
>   		return -ENOMEM;
>   
> -	drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd);
> -	fb->base.obj[0] = gem;
> +	drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
> +	fb->obj[0] = gem;
>   
> -	ret = drm_framebuffer_init(dev, &fb->base,
&nouveau_framebuffer_funcs);
> +	ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
>   	if (ret)
>   		kfree(fb);
>   	return ret;
> @@ -250,7 +250,7 @@ nouveau_user_framebuffer_create(struct drm_device *dev,
>   				struct drm_file *file_priv,
>   				const struct drm_mode_fb_cmd2 *mode_cmd)
>   {
> -	struct nouveau_framebuffer *fb;
> +	struct drm_framebuffer *fb;
>   	struct drm_gem_object *gem;
>   	int ret;
>   
> @@ -260,7 +260,7 @@ nouveau_user_framebuffer_create(struct drm_device *dev,
>   
>   	ret = nouveau_framebuffer_new(dev, mode_cmd, gem, &fb);
>   	if (ret == 0)
> -		return &fb->base;
> +		return fb;
>   
>   	drm_gem_object_put_unlocked(gem);
>   	return ERR_PTR(ret);
> diff --git a/drivers/gpu/drm/nouveau/nouveau_display.h
b/drivers/gpu/drm/nouveau/nouveau_display.h
> index 56c1dec8fc28..082bb067d575 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_display.h
> +++ b/drivers/gpu/drm/nouveau/nouveau_display.h
> @@ -8,21 +8,11 @@
>   
>   #include <drm/drm_framebuffer.h>
>   
> -struct nouveau_framebuffer {
> -	struct drm_framebuffer base;
> -};
> -
> -static inline struct nouveau_framebuffer *
> -nouveau_framebuffer(struct drm_framebuffer *fb)
> -{
> -	return container_of(fb, struct nouveau_framebuffer, base);
> -}
> -
>   int
>   nouveau_framebuffer_new(struct drm_device *dev,
>   			const struct drm_mode_fb_cmd2 *mode_cmd,
>   			struct drm_gem_object *gem,
> -			struct nouveau_framebuffer **pfb);
> +			struct drm_framebuffer **pfb);
>   
>   struct nouveau_display {
>   	void *priv;
> diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
> index 02b36b44409c..d78bc03ad3b8 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
> @@ -312,7 +312,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
>   	struct nouveau_drm *drm = nouveau_drm(dev);
>   	struct nvif_device *device = &drm->client.device;
>   	struct fb_info *info;
> -	struct nouveau_framebuffer *fb;
> +	struct drm_framebuffer *fb;
>   	struct nouveau_channel *chan;
>   	struct nouveau_bo *nvbo;
>   	struct drm_mode_fb_cmd2 mode_cmd;
> @@ -367,7 +367,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
>   	}
>   
>   	/* setup helper */
> -	fbcon->helper.fb = &fb->base;
> +	fbcon->helper.fb = fb;
>   
>   	if (!chan)
>   		info->flags = FBINFO_HWACCEL_DISABLED;
> @@ -393,7 +393,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
>   
>   	/* To allow resizeing without swapping buffers */
>   	NV_INFO(drm, "allocated %dx%d fb: 0x%llx, bo %p\n",
> -		fb->base.width, fb->base.height, nvbo->bo.offset, nvbo);
> +		fb->width, fb->height, nvbo->bo.offset, nvbo);
>   
>   	vga_switcheroo_client_fb_set(dev->pdev, info);
>   	return 0;
> @@ -413,18 +413,18 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
>   static int
>   nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev
*fbcon)
>   {
> -	struct nouveau_framebuffer *nouveau_fb =
nouveau_framebuffer(fbcon->helper.fb);
> +	struct drm_framebuffer *fb = fbcon->helper.fb;
>   	struct nouveau_bo *nvbo;
>   
>   	drm_fb_helper_unregister_fbi(&fbcon->helper);
>   	drm_fb_helper_fini(&fbcon->helper);
>   
> -	if (nouveau_fb && nouveau_fb->base.obj[0]) {
> -		nvbo = nouveau_gem_object(nouveau_fb->base.obj[0]);
> +	if (fb && fb->obj[0]) {
> +		nvbo = nouveau_gem_object(fb->obj[0]);
>   		nouveau_vma_del(&fbcon->vma);
>   		nouveau_bo_unmap(nvbo);
>   		nouveau_bo_unpin(nvbo);
> -		drm_framebuffer_put(&nouveau_fb->base);
> +		drm_framebuffer_put(fb);
>   	}
>   
>   	return 0;
>