similar to: [PATCH 06/14] drm/bochs: atomic: use atomic set_config helper

Conversion to atomic modesetting, step five. Use atomic page_flip helper for crtc. Signed-off-by: Gerd Hoffmann <kraxel at redhat.com> --- 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 dcc8b864fc..9e836386e9 100644 ---

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 at redhat.com> --- drivers/gpu/drm/bochs/bochs_fbdev.c | 3 ++ drivers/gpu/drm/bochs/bochs_kms.c | 70

Conversion to atomic modesetting, step one. Add atomic crtc helper callbacks. Signed-off-by: Gerd Hoffmann <kraxel at redhat.com> --- 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..59d469f343 100644 --- a/drivers/gpu/drm/bochs/bochs_kms.c

Signed-off-by: Gerd Hoffmann <kraxel at redhat.com> --- drivers/gpu/drm/bochs/bochs.h | 6 +- drivers/gpu/drm/bochs/bochs_kms.c | 178 +++++++++--------------------- 2 files changed, 53 insertions(+), 131 deletions(-) diff --git a/drivers/gpu/drm/bochs/bochs.h b/drivers/gpu/drm/bochs/bochs.h index a7f6723bebdd..36f6ee725d13 100644 --- a/drivers/gpu/drm/bochs/bochs.h +++

Remove the old, now unused crtc callbacks. Signed-off-by: Gerd Hoffmann <kraxel at redhat.com> --- 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 9e836386e9..85dd268fa1 100644 --- a/drivers/gpu/drm/bochs/bochs_kms.c +++

Use DRM_FORMAT_HOST_XRGB8888, so we are using the correct format code on bigendian machines. Also set the quirk_addfb_prefer_host_byte_order mode_config bit so drm_mode_addfb() asks for the correct format code. Create our own plane and use drm_crtc_init_with_planes() instead of depending on the default created by drm_crtc_init(). That way the plane format list is correct on bigendian machines.

Use DRM_FORMAT_HOST_XRGB8888, so we are using the correct format code on bigendian machines. Also set the quirk_addfb_prefer_host_byte_order mode_config bit so drm_mode_addfb() asks for the correct format code. Create our own plane and use drm_crtc_init_with_planes() instead of depending on the default created by drm_crtc_init(). That way the plane format list is correct on bigendian machines.

Use DRM_FORMAT_HOST_XRGB8888, so we are using the correct format code on bigendian machines. Also add DRIVER_PREFER_HOST_BYTE_ORDER driver feature flag so drm_mode_addfb() asks for the correct format code. Create our own plane and use drm_crtc_init_with_planes() instead of depending on the default created by drm_crtc_init(). That way the plane format list is correct on bigendian machines. With

Hi, > > > static void bochs_crtc_atomic_flush(struct drm_crtc *crtc, > > > struct drm_crtc_state *old_crtc_state) > > > { > > > @@ -66,6 +71,7 @@ static const struct drm_crtc_funcs bochs_crtc_funcs = { > > > static const struct drm_crtc_helper_funcs bochs_helper_funcs = { > > > .mode_set_nofb = bochs_crtc_mode_set_nofb, > >

Hi, > > > static void bochs_crtc_atomic_flush(struct drm_crtc *crtc, > > > struct drm_crtc_state *old_crtc_state) > > > { > > > @@ -66,6 +71,7 @@ static const struct drm_crtc_funcs bochs_crtc_funcs = { > > > static const struct drm_crtc_helper_funcs bochs_helper_funcs = { > > > .mode_set_nofb = bochs_crtc_mode_set_nofb, > >

On Sun, Mar 10, 2019 at 06:21:50PM -0300, Rodrigo Siqueira wrote: > When the subtest basic-plain-flip from IGT project was executed on Bochs > driver, the following bug appears: > > BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 > ? drm_atomic_helper_commit_modeset_disables+0x396/0x3e0 [drm_kms_helper] > +static void

On Mon, Mar 11, 2019 at 02:07:16PM +0100, Gerd Hoffmann wrote: > Hi, > > > > > static void bochs_crtc_atomic_flush(struct drm_crtc *crtc, > > > > struct drm_crtc_state *old_crtc_state) > > > > { > > > > @@ -66,6 +71,7 @@ static const struct drm_crtc_funcs bochs_crtc_funcs = { > > > > static const struct

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 at redhat.com> --- 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

The bochs driver (and virtual hardware) requires buffer objects to reside in video ram to display them to the screen. So it can not display the framebuffer console because the respective buffer object is permanently pinned in system memory. Using a shadow buffer for the console solves this problem. The console emulation will pin the buffer object only during updates from the shadow buffer.

Signed-off-by: Gerd Hoffmann <kraxel at redhat.com> --- drivers/gpu/drm/bochs/bochs_kms.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c index 9e7cd6b34106..93cb27f93d39 100644 --- a/drivers/gpu/drm/bochs/bochs_kms.c +++ b/drivers/gpu/drm/bochs/bochs_kms.c @@ -293,6 +293,7 @@ int bochs_kms_init(struct bochs_device

Check whenever mode_config was actually properly initialized before trying to clean it up. Signed-off-by: Gerd Hoffmann <kraxel at redhat.com> --- drivers/gpu/drm/bochs/bochs_kms.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c index cc93ff74fbd8..3a755c911342 100644 --- a/drivers/gpu/drm/bochs/bochs_kms.c +++

This is leftovers from the old drm_driver->load callback upside-down issues. It doesn't do anything for not-hotplugged connectors since drm_dev_register takes care of that. Signed-off-by: Daniel Vetter <daniel.vetter at intel.com> Cc: Gerd Hoffmann <kraxel at redhat.com> Cc: virtualization at lists.linux-foundation.org --- drivers/gpu/drm/bochs/bochs_kms.c | 1 - 1 file

Instead rely on the automatic clean, for which we just need to check that drm_mode_config_init succeeded. To avoid an inversion in the cleanup we also have to move the dev_private allocation over to drmm_kzalloc. Signed-off-by: Daniel Vetter <daniel.vetter at intel.com> Cc: Gerd Hoffmann <kraxel at redhat.com> Cc: virtualization at lists.linux-foundation.org ---

This is the default for atomic drivers. Signed-off-by: Daniel Vetter <daniel.vetter at intel.com> Cc: Gerd Hoffmann <kraxel at redhat.com> Cc: virtualization at lists.linux-foundation.org --- drivers/gpu/drm/bochs/bochs_kms.c | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c index

This is the default for atomic drivers. Signed-off-by: Daniel Vetter <daniel.vetter at intel.com> Cc: Gerd Hoffmann <kraxel at redhat.com> Cc: virtualization at lists.linux-foundation.org --- drivers/gpu/drm/bochs/bochs_kms.c | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c index