[PATCH v3 01/15] drm/bochs: encoder cleanup

[PATCH v3 01/15] drm/bochs: encoder cleanup

[Gerd Hoffmann]

Most unused callbacks can be NULL pointers these days.
Drop a bunch of empty encoder callbacks.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_kms.c | 26 --------------------------
 1 file changed, 26 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
index f87c284dd9..c8ce54498d 100644
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c
@@ -170,31 +170,6 @@ static void bochs_crtc_init(struct drm_device *dev)
 	drm_crtc_helper_add(crtc, &bochs_helper_funcs);
 }
 
-static void bochs_encoder_mode_set(struct drm_encoder *encoder,
-				   struct drm_display_mode *mode,
-				   struct drm_display_mode *adjusted_mode)
-{
-}
-
-static void bochs_encoder_dpms(struct drm_encoder *encoder, int state)
-{
-}
-
-static void bochs_encoder_prepare(struct drm_encoder *encoder)
-{
-}
-
-static void bochs_encoder_commit(struct drm_encoder *encoder)
-{
-}
-
-static const struct drm_encoder_helper_funcs bochs_encoder_helper_funcs = {
-	.dpms = bochs_encoder_dpms,
-	.mode_set = bochs_encoder_mode_set,
-	.prepare = bochs_encoder_prepare,
-	.commit = bochs_encoder_commit,
-};
-
 static const struct drm_encoder_funcs bochs_encoder_encoder_funcs = {
 	.destroy = drm_encoder_cleanup,
 };
@@ -207,7 +182,6 @@ static void bochs_encoder_init(struct drm_device *dev)
 	encoder->possible_crtcs = 0x1;
 	drm_encoder_init(dev, encoder, &bochs_encoder_encoder_funcs,
 			 DRM_MODE_ENCODER_DAC, NULL);
-	drm_encoder_helper_add(encoder, &bochs_encoder_helper_funcs);
 }
 
 
-- 
2.9.3

[PATCH v3 02/15] drm/bochs: split bochs_hw_setmode

[Gerd Hoffmann]

Create a separate bochs_hw_setformat function to configure
the framebuffer format (actually just the byteorder).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs.h     |  5 +++--
 drivers/gpu/drm/bochs/bochs_hw.c  | 19 ++++++++++++-------
 drivers/gpu/drm/bochs/bochs_kms.c |  3 ++-
 3 files changed, 17 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs.h b/drivers/gpu/drm/bochs/bochs.h
index fb38c8b857..4dc1b6384e 100644
--- a/drivers/gpu/drm/bochs/bochs.h
+++ b/drivers/gpu/drm/bochs/bochs.h
@@ -121,8 +121,9 @@ int bochs_hw_init(struct drm_device *dev);
 void bochs_hw_fini(struct drm_device *dev);
 
 void bochs_hw_setmode(struct bochs_device *bochs,
-		      struct drm_display_mode *mode,
-		      const struct drm_format_info *format);
+		      struct drm_display_mode *mode);
+void bochs_hw_setformat(struct bochs_device *bochs,
+			const struct drm_format_info *format);
 void bochs_hw_setbase(struct bochs_device *bochs,
 		      int x, int y, u64 addr);
 int bochs_hw_load_edid(struct bochs_device *bochs);
diff --git a/drivers/gpu/drm/bochs/bochs_hw.c b/drivers/gpu/drm/bochs/bochs_hw.c
index d0b4e1cee8..3e04b2f0ec 100644
--- a/drivers/gpu/drm/bochs/bochs_hw.c
+++ b/drivers/gpu/drm/bochs/bochs_hw.c
@@ -204,8 +204,7 @@ void bochs_hw_fini(struct drm_device *dev)
 }
 
 void bochs_hw_setmode(struct bochs_device *bochs,
-		      struct drm_display_mode *mode,
-		      const struct drm_format_info *format)
+		      struct drm_display_mode *mode)
 {
 	bochs->xres = mode->hdisplay;
 	bochs->yres = mode->vdisplay;
@@ -213,12 +212,8 @@ void bochs_hw_setmode(struct bochs_device *bochs,
 	bochs->stride = mode->hdisplay * (bochs->bpp / 8);
 	bochs->yres_virtual = bochs->fb_size / bochs->stride;
 
-	DRM_DEBUG_DRIVER("%dx%d @ %d bpp, format %c%c%c%c, vy %d\n",
+	DRM_DEBUG_DRIVER("%dx%d @ %d bpp, vy %d\n",
 			 bochs->xres, bochs->yres, bochs->bpp,
-			 (format->format >>  0) & 0xff,
-			 (format->format >>  8) & 0xff,
-			 (format->format >> 16) & 0xff,
-			 (format->format >> 24) & 0xff,
 			 bochs->yres_virtual);
 
 	bochs_vga_writeb(bochs, 0x3c0, 0x20); /* unblank */
@@ -236,6 +231,16 @@ void bochs_hw_setmode(struct bochs_device *bochs,
 
 	bochs_dispi_write(bochs, VBE_DISPI_INDEX_ENABLE,
 			  VBE_DISPI_ENABLED | VBE_DISPI_LFB_ENABLED);
+}
+
+void bochs_hw_setformat(struct bochs_device *bochs,
+			const struct drm_format_info *format)
+{
+	DRM_DEBUG_DRIVER("format %c%c%c%c\n",
+			 (format->format >>  0) & 0xff,
+			 (format->format >>  8) & 0xff,
+			 (format->format >> 16) & 0xff,
+			 (format->format >> 24) & 0xff);
 
 	switch (format->format) {
 	case DRM_FORMAT_XRGB8888:
diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
index c8ce54498d..f7e6d1a9b3 100644
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c
@@ -80,7 +80,8 @@ static int bochs_crtc_mode_set(struct drm_crtc *crtc,
 	if (WARN_ON(crtc->primary->fb == NULL))
 		return -EINVAL;
 
-	bochs_hw_setmode(bochs, mode, crtc->primary->fb->format);
+	bochs_hw_setmode(bochs, mode);
+	bochs_hw_setformat(bochs, crtc->primary->fb->format);
 	bochs_crtc_mode_set_base(crtc, x, y, old_fb);
 	return 0;
 }
-- 
2.9.3

[PATCH v3 03/15] drm/bochs: atomic: add atomic_flush+atomic_enable callbacks.

[Gerd Hoffmann]

Conversion to atomic modesetting, step one.
Add atomic crtc helper callbacks.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_kms.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
index f7e6d1a9b3..2cbd406b1f 100644
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c
@@ -115,6 +115,29 @@ static int bochs_crtc_page_flip(struct drm_crtc *crtc,
 	return 0;
 }
 
+static void bochs_crtc_atomic_enable(struct drm_crtc *crtc,
+				     struct drm_crtc_state *old_crtc_state)
+{
+}
+
+static void bochs_crtc_atomic_flush(struct drm_crtc *crtc,
+				    struct drm_crtc_state *old_crtc_state)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_pending_vblank_event *event;
+
+	if (crtc->state && crtc->state->event) {
+		unsigned long irqflags;
+
+		spin_lock_irqsave(&dev->event_lock, irqflags);
+		event = crtc->state->event;
+		crtc->state->event = NULL;
+		drm_crtc_send_vblank_event(crtc, event);
+		spin_unlock_irqrestore(&dev->event_lock, irqflags);
+	}
+}
+
+
 /* These provide the minimum set of functions required to handle a CRTC */
 static const struct drm_crtc_funcs bochs_crtc_funcs = {
 	.set_config = drm_crtc_helper_set_config,
@@ -128,6 +151,8 @@ static const struct drm_crtc_helper_funcs bochs_helper_funcs = {
 	.mode_set_base = bochs_crtc_mode_set_base,
 	.prepare = bochs_crtc_prepare,
 	.commit = bochs_crtc_commit,
+	.atomic_enable = bochs_crtc_atomic_enable,
+	.atomic_flush = bochs_crtc_atomic_flush,
 };
 
 static const uint32_t bochs_formats[] = {
-- 
2.9.3

[PATCH v3 04/15] drm/bochs: atomic: add mode_set_nofb callback.

[Gerd Hoffmann]

Conversion to atomic modesetting, step two.
Add mode_set_nofb crtc helper callback.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_kms.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
index 2cbd406b1f..56fd7be933 100644
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c
@@ -86,6 +86,14 @@ static int bochs_crtc_mode_set(struct drm_crtc *crtc,
 	return 0;
 }
 
+static void bochs_crtc_mode_set_nofb(struct drm_crtc *crtc)
+{
+	struct bochs_device *bochs =
+		container_of(crtc, struct bochs_device, crtc);
+
+	bochs_hw_setmode(bochs, &crtc->mode);
+}
+
 static void bochs_crtc_prepare(struct drm_crtc *crtc)
 {
 }
@@ -149,6 +157,7 @@ static const struct drm_crtc_helper_funcs bochs_helper_funcs = {
 	.dpms = bochs_crtc_dpms,
 	.mode_set = bochs_crtc_mode_set,
 	.mode_set_base = bochs_crtc_mode_set_base,
+	.mode_set_nofb = bochs_crtc_mode_set_nofb,
 	.prepare = bochs_crtc_prepare,
 	.commit = bochs_crtc_commit,
 	.atomic_enable = bochs_crtc_atomic_enable,
-- 
2.9.3

[PATCH v3 05/15] drm/bochs: atomic: switch planes to atomic, wire up helpers.

[Gerd Hoffmann]

Conversion to atomic modesetting, step three.
Wire up atomic helpers.  Switch planes to atomic.

We are late to the party, the transitional helpers are gone,
so this can't be splitted into smaller steps any more.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_fbdev.c |  3 ++
 drivers/gpu/drm/bochs/bochs_kms.c   | 82 +++++++++++++++++++++++++++++++++++--
 2 files changed, 82 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_fbdev.c b/drivers/gpu/drm/bochs/bochs_fbdev.c
index dd3c7df267..d9f3d42999 100644
--- a/drivers/gpu/drm/bochs/bochs_fbdev.c
+++ b/drivers/gpu/drm/bochs/bochs_fbdev.c
@@ -6,6 +6,7 @@
  */
 
 #include "bochs.h"
+#include <drm/drm_atomic_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 
 /* ---------------------------------------------------------------------- */
@@ -149,6 +150,8 @@ bochs_gem_fb_create(struct drm_device *dev, struct drm_file *file,
 
 const struct drm_mode_config_funcs bochs_mode_funcs = {
 	.fb_create = bochs_gem_fb_create,
+	.atomic_check = drm_atomic_helper_check,
+	.atomic_commit = drm_atomic_helper_commit,
 };
 
 int bochs_fbdev_init(struct bochs_device *bochs)
diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
index 56fd7be933..c6993c2d59 100644
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c
@@ -6,7 +6,9 @@
  */
 
 #include "bochs.h"
+#include <drm/drm_atomic_helper.h>
 #include <drm/drm_plane_helper.h>
+#include <drm/drm_atomic_uapi.h>
 
 static int defx = 1024;
 static int defy = 768;
@@ -113,7 +115,7 @@ static int bochs_crtc_page_flip(struct drm_crtc *crtc,
 	struct drm_framebuffer *old_fb = crtc->primary->fb;
 	unsigned long irqflags;
 
-	crtc->primary->fb = fb;
+	drm_atomic_set_fb_for_plane(crtc->primary->state, fb);
 	bochs_crtc_mode_set_base(crtc, 0, 0, old_fb);
 	if (event) {
 		spin_lock_irqsave(&bochs->dev->event_lock, irqflags);
@@ -151,6 +153,9 @@ static const struct drm_crtc_funcs bochs_crtc_funcs = {
 	.set_config = drm_crtc_helper_set_config,
 	.destroy = drm_crtc_cleanup,
 	.page_flip = bochs_crtc_page_flip,
+	.reset = drm_atomic_helper_crtc_reset,
+	.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
 };
 
 static const struct drm_crtc_helper_funcs bochs_helper_funcs = {
@@ -169,6 +174,71 @@ static const uint32_t bochs_formats[] = {
 	DRM_FORMAT_BGRX8888,
 };
 
+static void bochs_plane_atomic_update(struct drm_plane *plane,
+				      struct drm_plane_state *old_state)
+{
+	struct bochs_device *bochs = plane->dev->dev_private;
+	struct bochs_bo *bo;
+
+	if (!plane->state->fb)
+		return;
+	bo = gem_to_bochs_bo(plane->state->fb->obj[0]);
+	bochs_hw_setbase(bochs,
+			 plane->state->crtc_x,
+			 plane->state->crtc_y,
+			 bo->bo.offset);
+	bochs_hw_setformat(bochs, plane->state->fb->format);
+}
+
+static int bochs_plane_prepare_fb(struct drm_plane *plane,
+				struct drm_plane_state *new_state)
+{
+	struct bochs_bo *bo;
+	int ret;
+
+	if (!new_state->fb)
+		return 0;
+	bo = gem_to_bochs_bo(new_state->fb->obj[0]);
+
+	ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
+	if (ret)
+		return ret;
+	ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM, NULL);
+	ttm_bo_unreserve(&bo->bo);
+	return ret;
+}
+
+static void bochs_plane_cleanup_fb(struct drm_plane *plane,
+				   struct drm_plane_state *old_state)
+{
+	struct bochs_bo *bo;
+	int ret;
+
+	if (!old_state->fb)
+		return;
+	bo = gem_to_bochs_bo(old_state->fb->obj[0]);
+	ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
+	if (ret)
+		return;
+	bochs_bo_unpin(bo);
+	ttm_bo_unreserve(&bo->bo);
+}
+
+static const struct drm_plane_helper_funcs bochs_plane_helper_funcs = {
+	.atomic_update = bochs_plane_atomic_update,
+	.prepare_fb = bochs_plane_prepare_fb,
+	.cleanup_fb = bochs_plane_cleanup_fb,
+};
+
+static const struct drm_plane_funcs bochs_plane_funcs = {
+       .update_plane   = drm_atomic_helper_update_plane,
+       .disable_plane  = drm_atomic_helper_disable_plane,
+       .destroy        = drm_primary_helper_destroy,
+       .reset          = drm_atomic_helper_plane_reset,
+       .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
+       .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
+};
+
 static struct drm_plane *bochs_primary_plane(struct drm_device *dev)
 {
 	struct drm_plane *primary;
@@ -181,16 +251,17 @@ static struct drm_plane *bochs_primary_plane(struct drm_device *dev)
 	}
 
 	ret = drm_universal_plane_init(dev, primary, 0,
-				       &drm_primary_helper_funcs,
+				       &bochs_plane_funcs,
 				       bochs_formats,
 				       ARRAY_SIZE(bochs_formats),
 				       NULL,
 				       DRM_PLANE_TYPE_PRIMARY, NULL);
 	if (ret) {
 		kfree(primary);
-		primary = NULL;
+		return NULL;
 	}
 
+	drm_plane_helper_add(primary, &bochs_plane_helper_funcs);
 	return primary;
 }
 
@@ -275,6 +346,9 @@ static const struct drm_connector_funcs bochs_connector_connector_funcs = {
 	.dpms = drm_helper_connector_dpms,
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.destroy = drm_connector_cleanup,
+	.reset = drm_atomic_helper_connector_reset,
+	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
 
 static void bochs_connector_init(struct drm_device *dev)
@@ -318,6 +392,8 @@ int bochs_kms_init(struct bochs_device *bochs)
 	drm_connector_attach_encoder(&bochs->connector,
 					  &bochs->encoder);
 
+	drm_mode_config_reset(bochs->dev);
+
 	return 0;
 }
 
-- 
2.9.3

[PATCH v3 06/15] drm/bochs: atomic: use atomic set_config helper

[Gerd Hoffmann]

Conversion to atomic modesetting, step four.
Use atomic set_config helper for crtc.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_kms.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
index c6993c2d59..646f897cb2 100644
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c
@@ -150,7 +150,7 @@ static void bochs_crtc_atomic_flush(struct drm_crtc *crtc,
 
 /* These provide the minimum set of functions required to handle a CRTC */
 static const struct drm_crtc_funcs bochs_crtc_funcs = {
-	.set_config = drm_crtc_helper_set_config,
+	.set_config = drm_atomic_helper_set_config,
 	.destroy = drm_crtc_cleanup,
 	.page_flip = bochs_crtc_page_flip,
 	.reset = drm_atomic_helper_crtc_reset,
-- 
2.9.3

[PATCH v3 07/15] drm/bochs: atomic: use atomic page_flip helper

[Gerd Hoffmann]

Conversion to atomic modesetting, step five.
Use atomic page_flip helper for crtc.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_kms.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
index 646f897cb2..67c3674609 100644
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c
@@ -104,27 +104,6 @@ static void bochs_crtc_commit(struct drm_crtc *crtc)
 {
 }
 
-static int bochs_crtc_page_flip(struct drm_crtc *crtc,
-				struct drm_framebuffer *fb,
-				struct drm_pending_vblank_event *event,
-				uint32_t page_flip_flags,
-				struct drm_modeset_acquire_ctx *ctx)
-{
-	struct bochs_device *bochs =
-		container_of(crtc, struct bochs_device, crtc);
-	struct drm_framebuffer *old_fb = crtc->primary->fb;
-	unsigned long irqflags;
-
-	drm_atomic_set_fb_for_plane(crtc->primary->state, fb);
-	bochs_crtc_mode_set_base(crtc, 0, 0, old_fb);
-	if (event) {
-		spin_lock_irqsave(&bochs->dev->event_lock, irqflags);
-		drm_crtc_send_vblank_event(crtc, event);
-		spin_unlock_irqrestore(&bochs->dev->event_lock, irqflags);
-	}
-	return 0;
-}
-
 static void bochs_crtc_atomic_enable(struct drm_crtc *crtc,
 				     struct drm_crtc_state *old_crtc_state)
 {
@@ -152,7 +131,7 @@ static void bochs_crtc_atomic_flush(struct drm_crtc *crtc,
 static const struct drm_crtc_funcs bochs_crtc_funcs = {
 	.set_config = drm_atomic_helper_set_config,
 	.destroy = drm_crtc_cleanup,
-	.page_flip = bochs_crtc_page_flip,
+	.page_flip = drm_atomic_helper_page_flip,
 	.reset = drm_atomic_helper_crtc_reset,
 	.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
-- 
2.9.3

[PATCH v3 08/15] drm/bochs: atomic: set DRIVER_ATOMIC

[Gerd Hoffmann]

Conversion to atomic modesetting, final step.
Set the DRIVER_ATOMIC flag.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
index f3dd66ae99..278f9d2e7f 100644
--- a/drivers/gpu/drm/bochs/bochs_drv.c
+++ b/drivers/gpu/drm/bochs/bochs_drv.c
@@ -81,7 +81,7 @@ static const struct file_operations bochs_fops = {
 };
 
 static struct drm_driver bochs_driver = {
-	.driver_features	= DRIVER_GEM | DRIVER_MODESET,
+	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops			= &bochs_fops,
 	.name			= "bochs-drm",
 	.desc			= "bochs dispi vga interface (qemu stdvga)",
-- 
2.9.3

[PATCH v3 09/15] drm/bochs: remove old bochs_crtc_* functions

[Gerd Hoffmann]

Remove the old, now unused crtc callbacks.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_kms.c | 81 ---------------------------------------
 1 file changed, 81 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
index 67c3674609..5b7e1a7c6b 100644
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c
@@ -20,74 +20,6 @@ MODULE_PARM_DESC(defy, "default y resolution");
 
 /* ---------------------------------------------------------------------- */
 
-static void bochs_crtc_dpms(struct drm_crtc *crtc, int mode)
-{
-	switch (mode) {
-	case DRM_MODE_DPMS_ON:
-	case DRM_MODE_DPMS_STANDBY:
-	case DRM_MODE_DPMS_SUSPEND:
-	case DRM_MODE_DPMS_OFF:
-	default:
-		return;
-	}
-}
-
-static int bochs_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
-				    struct drm_framebuffer *old_fb)
-{
-	struct bochs_device *bochs =
-		container_of(crtc, struct bochs_device, crtc);
-	struct bochs_bo *bo;
-	u64 gpu_addr = 0;
-	int ret;
-
-	if (old_fb) {
-		bo = gem_to_bochs_bo(old_fb->obj[0]);
-		ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
-		if (ret) {
-			DRM_ERROR("failed to reserve old_fb bo\n");
-		} else {
-			bochs_bo_unpin(bo);
-			ttm_bo_unreserve(&bo->bo);
-		}
-	}
-
-	if (WARN_ON(crtc->primary->fb == NULL))
-		return -EINVAL;
-
-	bo = gem_to_bochs_bo(crtc->primary->fb->obj[0]);
-	ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
-	if (ret)
-		return ret;
-
-	ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
-	if (ret) {
-		ttm_bo_unreserve(&bo->bo);
-		return ret;
-	}
-
-	ttm_bo_unreserve(&bo->bo);
-	bochs_hw_setbase(bochs, x, y, gpu_addr);
-	return 0;
-}
-
-static int bochs_crtc_mode_set(struct drm_crtc *crtc,
-			       struct drm_display_mode *mode,
-			       struct drm_display_mode *adjusted_mode,
-			       int x, int y, struct drm_framebuffer *old_fb)
-{
-	struct bochs_device *bochs =
-		container_of(crtc, struct bochs_device, crtc);
-
-	if (WARN_ON(crtc->primary->fb == NULL))
-		return -EINVAL;
-
-	bochs_hw_setmode(bochs, mode);
-	bochs_hw_setformat(bochs, crtc->primary->fb->format);
-	bochs_crtc_mode_set_base(crtc, x, y, old_fb);
-	return 0;
-}
-
 static void bochs_crtc_mode_set_nofb(struct drm_crtc *crtc)
 {
 	struct bochs_device *bochs =
@@ -96,14 +28,6 @@ static void bochs_crtc_mode_set_nofb(struct drm_crtc *crtc)
 	bochs_hw_setmode(bochs, &crtc->mode);
 }
 
-static void bochs_crtc_prepare(struct drm_crtc *crtc)
-{
-}
-
-static void bochs_crtc_commit(struct drm_crtc *crtc)
-{
-}
-
 static void bochs_crtc_atomic_enable(struct drm_crtc *crtc,
 				     struct drm_crtc_state *old_crtc_state)
 {
@@ -138,12 +62,7 @@ static const struct drm_crtc_funcs bochs_crtc_funcs = {
 };
 
 static const struct drm_crtc_helper_funcs bochs_helper_funcs = {
-	.dpms = bochs_crtc_dpms,
-	.mode_set = bochs_crtc_mode_set,
-	.mode_set_base = bochs_crtc_mode_set_base,
 	.mode_set_nofb = bochs_crtc_mode_set_nofb,
-	.prepare = bochs_crtc_prepare,
-	.commit = bochs_crtc_commit,
 	.atomic_enable = bochs_crtc_atomic_enable,
 	.atomic_flush = bochs_crtc_atomic_flush,
 };
-- 
2.9.3

[PATCH v3 10/15] drm/bochs: drop unused gpu_addr arg from bochs_bo_pin()

[Gerd Hoffmann]

It's always NULL, so just remove it.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs.h       |  2 +-
 drivers/gpu/drm/bochs/bochs_fbdev.c |  2 +-
 drivers/gpu/drm/bochs/bochs_kms.c   |  2 +-
 drivers/gpu/drm/bochs/bochs_mm.c    | 11 +----------
 4 files changed, 4 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs.h b/drivers/gpu/drm/bochs/bochs.h
index 4dc1b6384e..d0d474e06f 100644
--- a/drivers/gpu/drm/bochs/bochs.h
+++ b/drivers/gpu/drm/bochs/bochs.h
@@ -142,7 +142,7 @@ int bochs_dumb_create(struct drm_file *file, struct drm_device *dev,
 int bochs_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev,
 			   uint32_t handle, uint64_t *offset);
 
-int bochs_bo_pin(struct bochs_bo *bo, u32 pl_flag, u64 *gpu_addr);
+int bochs_bo_pin(struct bochs_bo *bo, u32 pl_flag);
 int bochs_bo_unpin(struct bochs_bo *bo);
 
 /* bochs_kms.c */
diff --git a/drivers/gpu/drm/bochs/bochs_fbdev.c b/drivers/gpu/drm/bochs/bochs_fbdev.c
index d9f3d42999..92feb817ff 100644
--- a/drivers/gpu/drm/bochs/bochs_fbdev.c
+++ b/drivers/gpu/drm/bochs/bochs_fbdev.c
@@ -81,7 +81,7 @@ static int bochsfb_create(struct drm_fb_helper *helper,
 	if (ret)
 		return ret;
 
-	ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM, NULL);
+	ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM);
 	if (ret) {
 		DRM_ERROR("failed to pin fbcon\n");
 		ttm_bo_unreserve(&bo->bo);
diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
index 5b7e1a7c6b..f663c54185 100644
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c
@@ -101,7 +101,7 @@ static int bochs_plane_prepare_fb(struct drm_plane *plane,
 	ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
 	if (ret)
 		return ret;
-	ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM, NULL);
+	ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM);
 	ttm_bo_unreserve(&bo->bo);
 	return ret;
 }
diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c
index 0980411e41..5a0e092847 100644
--- a/drivers/gpu/drm/bochs/bochs_mm.c
+++ b/drivers/gpu/drm/bochs/bochs_mm.c
@@ -210,20 +210,13 @@ static void bochs_ttm_placement(struct bochs_bo *bo, int domain)
 	bo->placement.num_busy_placement = c;
 }
 
-static inline u64 bochs_bo_gpu_offset(struct bochs_bo *bo)
-{
-	return bo->bo.offset;
-}
-
-int bochs_bo_pin(struct bochs_bo *bo, u32 pl_flag, u64 *gpu_addr)
+int bochs_bo_pin(struct bochs_bo *bo, u32 pl_flag)
 {
 	struct ttm_operation_ctx ctx = { false, false };
 	int i, ret;
 
 	if (bo->pin_count) {
 		bo->pin_count++;
-		if (gpu_addr)
-			*gpu_addr = bochs_bo_gpu_offset(bo);
 		return 0;
 	}
 
@@ -235,8 +228,6 @@ int bochs_bo_pin(struct bochs_bo *bo, u32 pl_flag, u64 *gpu_addr)
 		return ret;
 
 	bo->pin_count = 1;
-	if (gpu_addr)
-		*gpu_addr = bochs_bo_gpu_offset(bo);
 	return 0;
 }
 
-- 
2.9.3

[PATCH v3 11/15] drm/bochs: move ttm_bo_(un)reserve calls into bochs_bo_{pin,unpin}

[Gerd Hoffmann]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_fbdev.c |  8 --------
 drivers/gpu/drm/bochs/bochs_kms.c   | 14 +-------------
 drivers/gpu/drm/bochs/bochs_mm.c    |  8 ++++++++
 3 files changed, 9 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_fbdev.c b/drivers/gpu/drm/bochs/bochs_fbdev.c
index 92feb817ff..ccf783b038 100644
--- a/drivers/gpu/drm/bochs/bochs_fbdev.c
+++ b/drivers/gpu/drm/bochs/bochs_fbdev.c
@@ -77,14 +77,9 @@ static int bochsfb_create(struct drm_fb_helper *helper,
 
 	bo = gem_to_bochs_bo(gobj);
 
-	ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
-	if (ret)
-		return ret;
-
 	ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM);
 	if (ret) {
 		DRM_ERROR("failed to pin fbcon\n");
-		ttm_bo_unreserve(&bo->bo);
 		return ret;
 	}
 
@@ -92,12 +87,9 @@ static int bochsfb_create(struct drm_fb_helper *helper,
 			  &bo->kmap);
 	if (ret) {
 		DRM_ERROR("failed to kmap fbcon\n");
-		ttm_bo_unreserve(&bo->bo);
 		return ret;
 	}
 
-	ttm_bo_unreserve(&bo->bo);
-
 	/* init fb device */
 	info = drm_fb_helper_alloc_fbi(helper);
 	if (IS_ERR(info)) {
diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
index f663c54185..fc856a02a2 100644
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c
@@ -92,34 +92,22 @@ static int bochs_plane_prepare_fb(struct drm_plane *plane,
 				struct drm_plane_state *new_state)
 {
 	struct bochs_bo *bo;
-	int ret;
 
 	if (!new_state->fb)
 		return 0;
 	bo = gem_to_bochs_bo(new_state->fb->obj[0]);
-
-	ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
-	if (ret)
-		return ret;
-	ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM);
-	ttm_bo_unreserve(&bo->bo);
-	return ret;
+	return bochs_bo_pin(bo, TTM_PL_FLAG_VRAM);
 }
 
 static void bochs_plane_cleanup_fb(struct drm_plane *plane,
 				   struct drm_plane_state *old_state)
 {
 	struct bochs_bo *bo;
-	int ret;
 
 	if (!old_state->fb)
 		return;
 	bo = gem_to_bochs_bo(old_state->fb->obj[0]);
-	ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
-	if (ret)
-		return;
 	bochs_bo_unpin(bo);
-	ttm_bo_unreserve(&bo->bo);
 }
 
 static const struct drm_plane_helper_funcs bochs_plane_helper_funcs = {
diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c
index 5a0e092847..fcbf35456d 100644
--- a/drivers/gpu/drm/bochs/bochs_mm.c
+++ b/drivers/gpu/drm/bochs/bochs_mm.c
@@ -223,7 +223,11 @@ int bochs_bo_pin(struct bochs_bo *bo, u32 pl_flag)
 	bochs_ttm_placement(bo, pl_flag);
 	for (i = 0; i < bo->placement.num_placement; i++)
 		bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
+	ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
+	if (ret)
+		return ret;
 	ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
+	ttm_bo_unreserve(&bo->bo);
 	if (ret)
 		return ret;
 
@@ -247,7 +251,11 @@ int bochs_bo_unpin(struct bochs_bo *bo)
 
 	for (i = 0; i < bo->placement.num_placement; i++)
 		bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT;
+	ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
+	if (ret)
+		return ret;
 	ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
+	ttm_bo_unreserve(&bo->bo);
 	if (ret)
 		return ret;
 
-- 
2.9.3

[PATCH v3 12/15] drm/bochs: add basic prime support

[Gerd Hoffmann]

Just enough to make the generic framebuffer emulation happy.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs.h     |  7 ++++++
 drivers/gpu/drm/bochs/bochs_drv.c | 11 ++++++++-
 drivers/gpu/drm/bochs/bochs_mm.c  | 49 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 66 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bochs/bochs.h b/drivers/gpu/drm/bochs/bochs.h
index d0d474e06f..ede22beb85 100644
--- a/drivers/gpu/drm/bochs/bochs.h
+++ b/drivers/gpu/drm/bochs/bochs.h
@@ -145,6 +145,13 @@ int bochs_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev,
 int bochs_bo_pin(struct bochs_bo *bo, u32 pl_flag);
 int bochs_bo_unpin(struct bochs_bo *bo);
 
+int bochs_gem_prime_pin(struct drm_gem_object *obj);
+void bochs_gem_prime_unpin(struct drm_gem_object *obj);
+void *bochs_gem_prime_vmap(struct drm_gem_object *obj);
+void bochs_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
+int bochs_gem_prime_mmap(struct drm_gem_object *obj,
+			 struct vm_area_struct *vma);
+
 /* bochs_kms.c */
 int bochs_kms_init(struct bochs_device *bochs);
 void bochs_kms_fini(struct bochs_device *bochs);
diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
index 278f9d2e7f..379111f5a0 100644
--- a/drivers/gpu/drm/bochs/bochs_drv.c
+++ b/drivers/gpu/drm/bochs/bochs_drv.c
@@ -81,7 +81,8 @@ static const struct file_operations bochs_fops = {
 };
 
 static struct drm_driver bochs_driver = {
-	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
+	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC |
+				  DRIVER_PRIME,
 	.fops			= &bochs_fops,
 	.name			= "bochs-drm",
 	.desc			= "bochs dispi vga interface (qemu stdvga)",
@@ -91,6 +92,14 @@ static struct drm_driver bochs_driver = {
 	.gem_free_object_unlocked = bochs_gem_free_object,
 	.dumb_create            = bochs_dumb_create,
 	.dumb_map_offset        = bochs_dumb_mmap_offset,
+
+	.gem_prime_export = drm_gem_prime_export,
+	.gem_prime_import = drm_gem_prime_import,
+	.gem_prime_pin = bochs_gem_prime_pin,
+	.gem_prime_unpin = bochs_gem_prime_unpin,
+	.gem_prime_vmap = bochs_gem_prime_vmap,
+	.gem_prime_vunmap = bochs_gem_prime_vunmap,
+	.gem_prime_mmap = bochs_gem_prime_mmap,
 };
 
 /* ---------------------------------------------------------------------- */
diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c
index fcbf35456d..641a33f134 100644
--- a/drivers/gpu/drm/bochs/bochs_mm.c
+++ b/drivers/gpu/drm/bochs/bochs_mm.c
@@ -395,3 +395,52 @@ int bochs_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev,
 	drm_gem_object_put_unlocked(obj);
 	return 0;
 }
+
+/* ---------------------------------------------------------------------- */
+
+int bochs_gem_prime_pin(struct drm_gem_object *obj)
+{
+	struct bochs_bo *bo = gem_to_bochs_bo(obj);
+
+	return bochs_bo_pin(bo, TTM_PL_FLAG_VRAM);
+}
+
+void bochs_gem_prime_unpin(struct drm_gem_object *obj)
+{
+	struct bochs_bo *bo = gem_to_bochs_bo(obj);
+
+	bochs_bo_unpin(bo);
+}
+
+void *bochs_gem_prime_vmap(struct drm_gem_object *obj)
+{
+	struct bochs_bo *bo = gem_to_bochs_bo(obj);
+	bool is_iomem;
+	int ret;
+
+	ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM);
+	if (ret)
+		return NULL;
+	ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
+	if (ret) {
+		bochs_bo_unpin(bo);
+		return NULL;
+	}
+	return ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
+}
+
+void bochs_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
+{
+	struct bochs_bo *bo = gem_to_bochs_bo(obj);
+
+	ttm_bo_kunmap(&bo->kmap);
+	bochs_bo_unpin(bo);
+}
+
+int bochs_gem_prime_mmap(struct drm_gem_object *obj,
+			 struct vm_area_struct *vma)
+{
+	struct bochs_bo *bo = gem_to_bochs_bo(obj);
+
+	return ttm_fbdev_mmap(vma, &bo->bo);
+}
-- 
2.9.3

[PATCH v3 13/15] drm/bochs: switch to generic drm fbdev emulation

[Gerd Hoffmann]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_drv.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
index 379111f5a0..1d86c0fb5f 100644
--- a/drivers/gpu/drm/bochs/bochs_drv.c
+++ b/drivers/gpu/drm/bochs/bochs_drv.c
@@ -16,10 +16,6 @@ static int bochs_modeset = -1;
 module_param_named(modeset, bochs_modeset, int, 0444);
 MODULE_PARM_DESC(modeset, "enable/disable kernel modesetting");
 
-static bool enable_fbdev = true;
-module_param_named(fbdev, enable_fbdev, bool, 0444);
-MODULE_PARM_DESC(fbdev, "register fbdev device");
-
 /* ---------------------------------------------------------------------- */
 /* drm interface                                                          */
 
@@ -27,7 +23,6 @@ static void bochs_unload(struct drm_device *dev)
 {
 	struct bochs_device *bochs = dev->dev_private;
 
-	bochs_fbdev_fini(bochs);
 	bochs_kms_fini(bochs);
 	bochs_mm_fini(bochs);
 	bochs_hw_fini(dev);
@@ -58,9 +53,6 @@ static int bochs_load(struct drm_device *dev)
 	if (ret)
 		goto err;
 
-	if (enable_fbdev)
-		bochs_fbdev_init(bochs);
-
 	return 0;
 
 err:
@@ -174,6 +166,7 @@ static int bochs_pci_probe(struct pci_dev *pdev,
 	if (ret)
 		goto err_unload;
 
+	drm_fbdev_generic_setup(dev, 32);
 	return ret;
 
 err_unload:
-- 
2.9.3

[PATCH v3 14/15] drm/bochs: drop old fbdev emulation code

[Gerd Hoffmann]

Not needed any more, bochs uses the generic emulation now.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs.h       |   9 ---
 drivers/gpu/drm/bochs/bochs_drv.c   |   6 --
 drivers/gpu/drm/bochs/bochs_fbdev.c | 129 ------------------------------------
 3 files changed, 144 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs.h b/drivers/gpu/drm/bochs/bochs.h
index ede22beb85..03711394f1 100644
--- a/drivers/gpu/drm/bochs/bochs.h
+++ b/drivers/gpu/drm/bochs/bochs.h
@@ -80,12 +80,6 @@ struct bochs_device {
 		struct ttm_bo_device bdev;
 		bool initialized;
 	} ttm;
-
-	/* fbdev */
-	struct {
-		struct drm_framebuffer *fb;
-		struct drm_fb_helper helper;
-	} fb;
 };
 
 struct bochs_bo {
@@ -157,7 +151,4 @@ int bochs_kms_init(struct bochs_device *bochs);
 void bochs_kms_fini(struct bochs_device *bochs);
 
 /* bochs_fbdev.c */
-int bochs_fbdev_init(struct bochs_device *bochs);
-void bochs_fbdev_fini(struct bochs_device *bochs);
-
 extern const struct drm_mode_config_funcs bochs_mode_funcs;
diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
index 1d86c0fb5f..a8968cd8d5 100644
--- a/drivers/gpu/drm/bochs/bochs_drv.c
+++ b/drivers/gpu/drm/bochs/bochs_drv.c
@@ -102,12 +102,9 @@ static int bochs_pm_suspend(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
-	struct bochs_device *bochs = drm_dev->dev_private;
 
 	drm_kms_helper_poll_disable(drm_dev);
 
-	drm_fb_helper_set_suspend_unlocked(&bochs->fb.helper, 1);
-
 	return 0;
 }
 
@@ -115,12 +112,9 @@ static int bochs_pm_resume(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
-	struct bochs_device *bochs = drm_dev->dev_private;
 
 	drm_helper_resume_force_mode(drm_dev);
 
-	drm_fb_helper_set_suspend_unlocked(&bochs->fb.helper, 0);
-
 	drm_kms_helper_poll_enable(drm_dev);
 	return 0;
 }
diff --git a/drivers/gpu/drm/bochs/bochs_fbdev.c b/drivers/gpu/drm/bochs/bochs_fbdev.c
index ccf783b038..7cac3f5253 100644
--- a/drivers/gpu/drm/bochs/bochs_fbdev.c
+++ b/drivers/gpu/drm/bochs/bochs_fbdev.c
@@ -11,124 +11,6 @@
 
 /* ---------------------------------------------------------------------- */
 
-static int bochsfb_mmap(struct fb_info *info,
-			struct vm_area_struct *vma)
-{
-	struct drm_fb_helper *fb_helper = info->par;
-	struct bochs_bo *bo = gem_to_bochs_bo(fb_helper->fb->obj[0]);
-
-	return ttm_fbdev_mmap(vma, &bo->bo);
-}
-
-static struct fb_ops bochsfb_ops = {
-	.owner = THIS_MODULE,
-	DRM_FB_HELPER_DEFAULT_OPS,
-	.fb_fillrect = drm_fb_helper_cfb_fillrect,
-	.fb_copyarea = drm_fb_helper_cfb_copyarea,
-	.fb_imageblit = drm_fb_helper_cfb_imageblit,
-	.fb_mmap = bochsfb_mmap,
-};
-
-static int bochsfb_create_object(struct bochs_device *bochs,
-				 const struct drm_mode_fb_cmd2 *mode_cmd,
-				 struct drm_gem_object **gobj_p)
-{
-	struct drm_device *dev = bochs->dev;
-	struct drm_gem_object *gobj;
-	u32 size;
-	int ret = 0;
-
-	size = mode_cmd->pitches[0] * mode_cmd->height;
-	ret = bochs_gem_create(dev, size, true, &gobj);
-	if (ret)
-		return ret;
-
-	*gobj_p = gobj;
-	return ret;
-}
-
-static int bochsfb_create(struct drm_fb_helper *helper,
-			  struct drm_fb_helper_surface_size *sizes)
-{
-	struct bochs_device *bochs =
-		container_of(helper, struct bochs_device, fb.helper);
-	struct fb_info *info;
-	struct drm_framebuffer *fb;
-	struct drm_mode_fb_cmd2 mode_cmd;
-	struct drm_gem_object *gobj = NULL;
-	struct bochs_bo *bo = NULL;
-	int size, ret;
-
-	if (sizes->surface_bpp != 32)
-		return -EINVAL;
-
-	mode_cmd.width = sizes->surface_width;
-	mode_cmd.height = sizes->surface_height;
-	mode_cmd.pitches[0] = sizes->surface_width * 4;
-	mode_cmd.pixel_format = DRM_FORMAT_HOST_XRGB8888;
-	size = mode_cmd.pitches[0] * mode_cmd.height;
-
-	/* alloc, pin & map bo */
-	ret = bochsfb_create_object(bochs, &mode_cmd, &gobj);
-	if (ret) {
-		DRM_ERROR("failed to create fbcon backing object %d\n", ret);
-		return ret;
-	}
-
-	bo = gem_to_bochs_bo(gobj);
-
-	ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM);
-	if (ret) {
-		DRM_ERROR("failed to pin fbcon\n");
-		return ret;
-	}
-
-	ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages,
-			  &bo->kmap);
-	if (ret) {
-		DRM_ERROR("failed to kmap fbcon\n");
-		return ret;
-	}
-
-	/* init fb device */
-	info = drm_fb_helper_alloc_fbi(helper);
-	if (IS_ERR(info)) {
-		DRM_ERROR("Failed to allocate fbi: %ld\n", PTR_ERR(info));
-		return PTR_ERR(info);
-	}
-
-	info->par = &bochs->fb.helper;
-
-	fb = drm_gem_fbdev_fb_create(bochs->dev, sizes, 0, gobj, NULL);
-	if (IS_ERR(fb)) {
-		DRM_ERROR("Failed to create framebuffer: %ld\n", PTR_ERR(fb));
-		return PTR_ERR(fb);
-	}
-
-	/* setup helper */
-	bochs->fb.helper.fb = fb;
-
-	strcpy(info->fix.id, "bochsdrmfb");
-
-	info->fbops = &bochsfb_ops;
-
-	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->format->depth);
-	drm_fb_helper_fill_var(info, &bochs->fb.helper, sizes->fb_width,
-			       sizes->fb_height);
-
-	info->screen_base = bo->kmap.virtual;
-	info->screen_size = size;
-
-	drm_vma_offset_remove(&bo->bo.bdev->vma_manager, &bo->bo.vma_node);
-	info->fix.smem_start = 0;
-	info->fix.smem_len = size;
-	return 0;
-}
-
-static const struct drm_fb_helper_funcs bochs_fb_helper_funcs = {
-	.fb_probe = bochsfb_create,
-};
-
 static struct drm_framebuffer *
 bochs_gem_fb_create(struct drm_device *dev, struct drm_file *file,
 		    const struct drm_mode_fb_cmd2 *mode_cmd)
@@ -145,14 +27,3 @@ const struct drm_mode_config_funcs bochs_mode_funcs = {
 	.atomic_check = drm_atomic_helper_check,
 	.atomic_commit = drm_atomic_helper_commit,
 };
-
-int bochs_fbdev_init(struct bochs_device *bochs)
-{
-	return drm_fb_helper_fbdev_setup(bochs->dev, &bochs->fb.helper,
-					 &bochs_fb_helper_funcs, 32, 1);
-}
-
-void bochs_fbdev_fini(struct bochs_device *bochs)
-{
-	drm_fb_helper_fbdev_teardown(bochs->dev);
-}
-- 
2.9.3

Re: [PATCH v3 14/15] drm/bochs: drop old fbdev emulation code

[Noralf Trønnes]

Den 10.01.2019 09.28, skrev Gerd Hoffmann:
> Not needed any more, bochs uses the generic emulation now.
> 
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> ---
>  drivers/gpu/drm/bochs/bochs.h       |   9 ---
>  drivers/gpu/drm/bochs/bochs_drv.c   |   6 --
>  drivers/gpu/drm/bochs/bochs_fbdev.c | 129 ------------------------------------
>  3 files changed, 144 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bochs/bochs.h b/drivers/gpu/drm/bochs/bochs.h
> index ede22beb85..03711394f1 100644
> --- a/drivers/gpu/drm/bochs/bochs.h
> +++ b/drivers/gpu/drm/bochs/bochs.h
> @@ -80,12 +80,6 @@ struct bochs_device {
>  		struct ttm_bo_device bdev;
>  		bool initialized;
>  	} ttm;
> -
> -	/* fbdev */
> -	struct {
> -		struct drm_framebuffer *fb;
> -		struct drm_fb_helper helper;
> -	} fb;
>  };
>  
>  struct bochs_bo {
> @@ -157,7 +151,4 @@ int bochs_kms_init(struct bochs_device *bochs);
>  void bochs_kms_fini(struct bochs_device *bochs);
>  
>  /* bochs_fbdev.c */
> -int bochs_fbdev_init(struct bochs_device *bochs);
> -void bochs_fbdev_fini(struct bochs_device *bochs);
> -
>  extern const struct drm_mode_config_funcs bochs_mode_funcs;
> diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
> index 1d86c0fb5f..a8968cd8d5 100644
> --- a/drivers/gpu/drm/bochs/bochs_drv.c
> +++ b/drivers/gpu/drm/bochs/bochs_drv.c
> @@ -102,12 +102,9 @@ static int bochs_pm_suspend(struct device *dev)
>  {
>  	struct pci_dev *pdev = to_pci_dev(dev);
>  	struct drm_device *drm_dev = pci_get_drvdata(pdev);
> -	struct bochs_device *bochs = drm_dev->dev_private;
>  
>  	drm_kms_helper_poll_disable(drm_dev);
>  
> -	drm_fb_helper_set_suspend_unlocked(&bochs->fb.helper, 1);

The generic fbdev emulation doesn't take care of suspend/resume. You
could do this:
drm_fb_helper_set_suspend_unlocked(drm_dev->fb_helper, 1);

> -
>  	return 0;
>  }
>  
> @@ -115,12 +112,9 @@ static int bochs_pm_resume(struct device *dev)
>  {
>  	struct pci_dev *pdev = to_pci_dev(dev);
>  	struct drm_device *drm_dev = pci_get_drvdata(pdev);
> -	struct bochs_device *bochs = drm_dev->dev_private;
>  
>  	drm_helper_resume_force_mode(drm_dev);

The docs for this function has this to say:
* This function is deprecated. New drivers should implement atomic mode-
* setting and use the atomic suspend/resume helpers.

Maybe you can use drm_mode_config_helper_suspend/resume() instead like
suggested in the drm_fbdev_generic_setup() docs.

Noralf.

>  
> -	drm_fb_helper_set_suspend_unlocked(&bochs->fb.helper, 0);
> -
>  	drm_kms_helper_poll_enable(drm_dev);
>  	return 0;
>  }
> diff --git a/drivers/gpu/drm/bochs/bochs_fbdev.c b/drivers/gpu/drm/bochs/bochs_fbdev.c
> index ccf783b038..7cac3f5253 100644
> --- a/drivers/gpu/drm/bochs/bochs_fbdev.c
> +++ b/drivers/gpu/drm/bochs/bochs_fbdev.c
> @@ -11,124 +11,6 @@
>  
>  /* ---------------------------------------------------------------------- */
>  
> -static int bochsfb_mmap(struct fb_info *info,
> -			struct vm_area_struct *vma)
> -{
> -	struct drm_fb_helper *fb_helper = info->par;
> -	struct bochs_bo *bo = gem_to_bochs_bo(fb_helper->fb->obj[0]);
> -
> -	return ttm_fbdev_mmap(vma, &bo->bo);
> -}
> -
> -static struct fb_ops bochsfb_ops = {
> -	.owner = THIS_MODULE,
> -	DRM_FB_HELPER_DEFAULT_OPS,
> -	.fb_fillrect = drm_fb_helper_cfb_fillrect,
> -	.fb_copyarea = drm_fb_helper_cfb_copyarea,
> -	.fb_imageblit = drm_fb_helper_cfb_imageblit,
> -	.fb_mmap = bochsfb_mmap,
> -};
> -
> -static int bochsfb_create_object(struct bochs_device *bochs,
> -				 const struct drm_mode_fb_cmd2 *mode_cmd,
> -				 struct drm_gem_object **gobj_p)
> -{
> -	struct drm_device *dev = bochs->dev;
> -	struct drm_gem_object *gobj;
> -	u32 size;
> -	int ret = 0;
> -
> -	size = mode_cmd->pitches[0] * mode_cmd->height;
> -	ret = bochs_gem_create(dev, size, true, &gobj);
> -	if (ret)
> -		return ret;
> -
> -	*gobj_p = gobj;
> -	return ret;
> -}
> -
> -static int bochsfb_create(struct drm_fb_helper *helper,
> -			  struct drm_fb_helper_surface_size *sizes)
> -{
> -	struct bochs_device *bochs =
> -		container_of(helper, struct bochs_device, fb.helper);
> -	struct fb_info *info;
> -	struct drm_framebuffer *fb;
> -	struct drm_mode_fb_cmd2 mode_cmd;
> -	struct drm_gem_object *gobj = NULL;
> -	struct bochs_bo *bo = NULL;
> -	int size, ret;
> -
> -	if (sizes->surface_bpp != 32)
> -		return -EINVAL;
> -
> -	mode_cmd.width = sizes->surface_width;
> -	mode_cmd.height = sizes->surface_height;
> -	mode_cmd.pitches[0] = sizes->surface_width * 4;
> -	mode_cmd.pixel_format = DRM_FORMAT_HOST_XRGB8888;
> -	size = mode_cmd.pitches[0] * mode_cmd.height;
> -
> -	/* alloc, pin & map bo */
> -	ret = bochsfb_create_object(bochs, &mode_cmd, &gobj);
> -	if (ret) {
> -		DRM_ERROR("failed to create fbcon backing object %d\n", ret);
> -		return ret;
> -	}
> -
> -	bo = gem_to_bochs_bo(gobj);
> -
> -	ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM);
> -	if (ret) {
> -		DRM_ERROR("failed to pin fbcon\n");
> -		return ret;
> -	}
> -
> -	ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages,
> -			  &bo->kmap);
> -	if (ret) {
> -		DRM_ERROR("failed to kmap fbcon\n");
> -		return ret;
> -	}
> -
> -	/* init fb device */
> -	info = drm_fb_helper_alloc_fbi(helper);
> -	if (IS_ERR(info)) {
> -		DRM_ERROR("Failed to allocate fbi: %ld\n", PTR_ERR(info));
> -		return PTR_ERR(info);
> -	}
> -
> -	info->par = &bochs->fb.helper;
> -
> -	fb = drm_gem_fbdev_fb_create(bochs->dev, sizes, 0, gobj, NULL);
> -	if (IS_ERR(fb)) {
> -		DRM_ERROR("Failed to create framebuffer: %ld\n", PTR_ERR(fb));
> -		return PTR_ERR(fb);
> -	}
> -
> -	/* setup helper */
> -	bochs->fb.helper.fb = fb;
> -
> -	strcpy(info->fix.id, "bochsdrmfb");
> -
> -	info->fbops = &bochsfb_ops;
> -
> -	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->format->depth);
> -	drm_fb_helper_fill_var(info, &bochs->fb.helper, sizes->fb_width,
> -			       sizes->fb_height);
> -
> -	info->screen_base = bo->kmap.virtual;
> -	info->screen_size = size;
> -
> -	drm_vma_offset_remove(&bo->bo.bdev->vma_manager, &bo->bo.vma_node);
> -	info->fix.smem_start = 0;
> -	info->fix.smem_len = size;
> -	return 0;
> -}
> -
> -static const struct drm_fb_helper_funcs bochs_fb_helper_funcs = {
> -	.fb_probe = bochsfb_create,
> -};
> -
>  static struct drm_framebuffer *
>  bochs_gem_fb_create(struct drm_device *dev, struct drm_file *file,
>  		    const struct drm_mode_fb_cmd2 *mode_cmd)
> @@ -145,14 +27,3 @@ const struct drm_mode_config_funcs bochs_mode_funcs = {
>  	.atomic_check = drm_atomic_helper_check,
>  	.atomic_commit = drm_atomic_helper_commit,
>  };
> -
> -int bochs_fbdev_init(struct bochs_device *bochs)
> -{
> -	return drm_fb_helper_fbdev_setup(bochs->dev, &bochs->fb.helper,
> -					 &bochs_fb_helper_funcs, 32, 1);
> -}
> -
> -void bochs_fbdev_fini(struct bochs_device *bochs)
> -{
> -	drm_fb_helper_fbdev_teardown(bochs->dev);
> -}
> 

Re: [PATCH v3 14/15] drm/bochs: drop old fbdev emulation code

[Gerd Hoffmann]

  Hi,

> > -	drm_fb_helper_set_suspend_unlocked(&bochs->fb.helper, 1);
> 
> The generic fbdev emulation doesn't take care of suspend/resume. You
> could do this:
> drm_fb_helper_set_suspend_unlocked(drm_dev->fb_helper, 1);

Additional to drm_mode_config_helper_suspend() I assume?
Does the call order matter?

> >  	drm_helper_resume_force_mode(drm_dev);
> 
> The docs for this function has this to say:
> * This function is deprecated. New drivers should implement atomic mode-
> * setting and use the atomic suspend/resume helpers.
> 
> Maybe you can use drm_mode_config_helper_suspend/resume() instead like
> suggested in the drm_fbdev_generic_setup() docs.

That should work, yes.  The driver is simple enough ;)

cheers,
  Gerd

Re: [PATCH v3 14/15] drm/bochs: drop old fbdev emulation code

[Noralf Trønnes]

Den 10.01.2019 11.16, skrev Gerd Hoffmann:
>   Hi,
> 
>>> -	drm_fb_helper_set_suspend_unlocked(&bochs->fb.helper, 1);
>>
>> The generic fbdev emulation doesn't take care of suspend/resume. You
>> could do this:
>> drm_fb_helper_set_suspend_unlocked(drm_dev->fb_helper, 1);
> 
> Additional to drm_mode_config_helper_suspend() I assume?

No, sorry for the confusion. I didn't know if you could use
drm_mode_config_helper_suspend() or not. That function takes care of
fbdev suspend as well:

int drm_mode_config_helper_suspend(struct drm_device *dev)
{
<...>
	drm_kms_helper_poll_disable(dev);
	drm_fb_helper_set_suspend_unlocked(dev->fb_helper, 1);
	state = drm_atomic_helper_suspend(dev);
<...>
}


> Does the call order matter?
> 
>>>  	drm_helper_resume_force_mode(drm_dev);
>>
>> The docs for this function has this to say:
>> * This function is deprecated. New drivers should implement atomic mode-
>> * setting and use the atomic suspend/resume helpers.
>>
>> Maybe you can use drm_mode_config_helper_suspend/resume() instead like
>> suggested in the drm_fbdev_generic_setup() docs.
> 
> That should work, yes.  The driver is simple enough ;)
> 
> cheers,
>   Gerd
> 

[PATCH v3 15/15] drm/bochs: move remaining fb bits to kms

[Gerd Hoffmann]

bochs_fbdev.c is almost empty now.  Move the remaining framebuffer bits
over to bochs_kms.c.  Pure code motion. No functional change.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/bochs/bochs_fbdev.c | 29 -----------------------------
 drivers/gpu/drm/bochs/bochs_kms.c   | 17 +++++++++++++++++
 drivers/gpu/drm/bochs/Makefile      |  2 +-
 3 files changed, 18 insertions(+), 30 deletions(-)
 delete mode 100644 drivers/gpu/drm/bochs/bochs_fbdev.c

diff --git a/drivers/gpu/drm/bochs/bochs_fbdev.c b/drivers/gpu/drm/bochs/bochs_fbdev.c
deleted file mode 100644
index 7cac3f5253..0000000000
--- a/drivers/gpu/drm/bochs/bochs_fbdev.c
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include "bochs.h"
-#include <drm/drm_atomic_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
-
-/* ---------------------------------------------------------------------- */
-
-static struct drm_framebuffer *
-bochs_gem_fb_create(struct drm_device *dev, struct drm_file *file,
-		    const struct drm_mode_fb_cmd2 *mode_cmd)
-{
-	if (mode_cmd->pixel_format != DRM_FORMAT_XRGB8888 &&
-	    mode_cmd->pixel_format != DRM_FORMAT_BGRX8888)
-		return ERR_PTR(-EINVAL);
-
-	return drm_gem_fb_create(dev, file, mode_cmd);
-}
-
-const struct drm_mode_config_funcs bochs_mode_funcs = {
-	.fb_create = bochs_gem_fb_create,
-	.atomic_check = drm_atomic_helper_check,
-	.atomic_commit = drm_atomic_helper_commit,
-};
diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
index fc856a02a2..e9d5dbc346 100644
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c
@@ -9,6 +9,7 @@
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_atomic_uapi.h>
+#include <drm/drm_gem_framebuffer_helper.h>
 
 static int defx = 1024;
 static int defy = 768;
@@ -256,6 +257,22 @@ static void bochs_connector_init(struct drm_device *dev)
 	}
 }
 
+static struct drm_framebuffer *
+bochs_gem_fb_create(struct drm_device *dev, struct drm_file *file,
+		    const struct drm_mode_fb_cmd2 *mode_cmd)
+{
+	if (mode_cmd->pixel_format != DRM_FORMAT_XRGB8888 &&
+	    mode_cmd->pixel_format != DRM_FORMAT_BGRX8888)
+		return ERR_PTR(-EINVAL);
+
+	return drm_gem_fb_create(dev, file, mode_cmd);
+}
+
+const struct drm_mode_config_funcs bochs_mode_funcs = {
+	.fb_create = bochs_gem_fb_create,
+	.atomic_check = drm_atomic_helper_check,
+	.atomic_commit = drm_atomic_helper_commit,
+};
 
 int bochs_kms_init(struct bochs_device *bochs)
 {
diff --git a/drivers/gpu/drm/bochs/Makefile b/drivers/gpu/drm/bochs/Makefile
index 98ef60a19e..e9e0f8f5eb 100644
--- a/drivers/gpu/drm/bochs/Makefile
+++ b/drivers/gpu/drm/bochs/Makefile
@@ -1,3 +1,3 @@
-bochs-drm-y := bochs_drv.o bochs_mm.o bochs_kms.o bochs_fbdev.o bochs_hw.o
+bochs-drm-y := bochs_drv.o bochs_mm.o bochs_kms.o bochs_hw.o
 
 obj-$(CONFIG_DRM_BOCHS)	+= bochs-drm.o
-- 
2.9.3