Since commit 2bcd3ecab773 when switching mode from X11 (ubuntu mate for
example) the display gets blurry, looking like an invalid framebuffer width.
This commit fixed atomic crtc modesetting in a totally wrong way and
introduced a local unnecessary ->enabled crtc state.
This commit reverts the crctc _begin() and _enable() changes and simply
adds drm_atomic_helper_commit_tail_rpm as helper.
Reported-by: Tony McKahan <[email protected]>
Suggested-by: Daniel Vetter <[email protected]>
Fixes: 2bcd3ecab773 ("drm/meson: Fixes for drm_crtc_vblank_on/off support")
Signed-off-by: Neil Armstrong <[email protected]>
---
drivers/gpu/drm/meson/meson_crtc.c | 23 ++---------------------
drivers/gpu/drm/meson/meson_drv.c | 6 ++++++
2 files changed, 8 insertions(+), 21 deletions(-)
Changes since v1:
- drop the unecessary local ->enabled logic
- use drm_atomic_helper_commit_tail_rpm as atomic_commit_tail helper
diff --git a/drivers/gpu/drm/meson/meson_crtc.c b/drivers/gpu/drm/meson/meson_crtc.c
index 75d97f1b2e8f..4f5c67f70c4d 100644
--- a/drivers/gpu/drm/meson/meson_crtc.c
+++ b/drivers/gpu/drm/meson/meson_crtc.c
@@ -46,7 +46,6 @@ struct meson_crtc {
struct drm_crtc base;
struct drm_pending_vblank_event *event;
struct meson_drm *priv;
- bool enabled;
};
#define to_meson_crtc(x) container_of(x, struct meson_crtc, base)
@@ -82,7 +81,8 @@ static const struct drm_crtc_funcs meson_crtc_funcs = {
};
-static void meson_crtc_enable(struct drm_crtc *crtc)
+static void meson_crtc_atomic_enable(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_state)
{
struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
struct drm_crtc_state *crtc_state = crtc->state;
@@ -108,20 +108,6 @@ static void meson_crtc_enable(struct drm_crtc *crtc)
drm_crtc_vblank_on(crtc);
- meson_crtc->enabled = true;
-}
-
-static void meson_crtc_atomic_enable(struct drm_crtc *crtc,
- struct drm_crtc_state *old_state)
-{
- struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
- struct meson_drm *priv = meson_crtc->priv;
-
- DRM_DEBUG_DRIVER("\n");
-
- if (!meson_crtc->enabled)
- meson_crtc_enable(crtc);
-
priv->viu.osd1_enabled = true;
}
@@ -153,8 +139,6 @@ static void meson_crtc_atomic_disable(struct drm_crtc *crtc,
crtc->state->event = NULL;
}
-
- meson_crtc->enabled = false;
}
static void meson_crtc_atomic_begin(struct drm_crtc *crtc,
@@ -163,9 +147,6 @@ static void meson_crtc_atomic_begin(struct drm_crtc *crtc,
struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
unsigned long flags;
- if (crtc->state->enable && !meson_crtc->enabled)
- meson_crtc_enable(crtc);
-
if (crtc->state->event) {
WARN_ON(drm_crtc_vblank_get(crtc) != 0);
diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 3ee4d4a4ecba..a74d861ddceb 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -75,6 +75,11 @@ static const struct drm_mode_config_funcs meson_mode_config_funcs = {
.fb_create = drm_gem_fb_create,
};
+
+static const struct drm_mode_config_helper_funcs meson_mode_config_helpers = {
+ .atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
+};
+
static irqreturn_t meson_irq(int irq, void *arg)
{
struct drm_device *dev = arg;
@@ -266,6 +271,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
drm->mode_config.max_width = 3840;
drm->mode_config.max_height = 2160;
drm->mode_config.funcs = &meson_mode_config_funcs;
+ drm->mode_config.helper_private = &meson_mode_config_helpers;
/* Hardware Initialization */
--
2.20.1
On Mon, Jan 14, 2019 at 04:31:18PM +0100, Neil Armstrong wrote:
> Since commit 2bcd3ecab773 when switching mode from X11 (ubuntu mate for
> example) the display gets blurry, looking like an invalid framebuffer width.
>
> This commit fixed atomic crtc modesetting in a totally wrong way and
> introduced a local unnecessary ->enabled crtc state.
>
> This commit reverts the crctc _begin() and _enable() changes and simply
> adds drm_atomic_helper_commit_tail_rpm as helper.
>
> Reported-by: Tony McKahan <[email protected]>
> Suggested-by: Daniel Vetter <[email protected]>
> Fixes: 2bcd3ecab773 ("drm/meson: Fixes for drm_crtc_vblank_on/off support")
> Signed-off-by: Neil Armstrong <[email protected]>
For the record (I already acked this on irc):
Acked-by: Daniel Vetter <[email protected]>
> ---
> drivers/gpu/drm/meson/meson_crtc.c | 23 ++---------------------
> drivers/gpu/drm/meson/meson_drv.c | 6 ++++++
> 2 files changed, 8 insertions(+), 21 deletions(-)
>
> Changes since v1:
> - drop the unecessary local ->enabled logic
> - use drm_atomic_helper_commit_tail_rpm as atomic_commit_tail helper
>
> diff --git a/drivers/gpu/drm/meson/meson_crtc.c b/drivers/gpu/drm/meson/meson_crtc.c
> index 75d97f1b2e8f..4f5c67f70c4d 100644
> --- a/drivers/gpu/drm/meson/meson_crtc.c
> +++ b/drivers/gpu/drm/meson/meson_crtc.c
> @@ -46,7 +46,6 @@ struct meson_crtc {
> struct drm_crtc base;
> struct drm_pending_vblank_event *event;
> struct meson_drm *priv;
> - bool enabled;
> };
> #define to_meson_crtc(x) container_of(x, struct meson_crtc, base)
>
> @@ -82,7 +81,8 @@ static const struct drm_crtc_funcs meson_crtc_funcs = {
>
> };
>
> -static void meson_crtc_enable(struct drm_crtc *crtc)
> +static void meson_crtc_atomic_enable(struct drm_crtc *crtc,
> + struct drm_crtc_state *old_state)
> {
> struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
> struct drm_crtc_state *crtc_state = crtc->state;
> @@ -108,20 +108,6 @@ static void meson_crtc_enable(struct drm_crtc *crtc)
>
> drm_crtc_vblank_on(crtc);
>
> - meson_crtc->enabled = true;
> -}
> -
> -static void meson_crtc_atomic_enable(struct drm_crtc *crtc,
> - struct drm_crtc_state *old_state)
> -{
> - struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
> - struct meson_drm *priv = meson_crtc->priv;
> -
> - DRM_DEBUG_DRIVER("\n");
> -
> - if (!meson_crtc->enabled)
> - meson_crtc_enable(crtc);
> -
> priv->viu.osd1_enabled = true;
> }
>
> @@ -153,8 +139,6 @@ static void meson_crtc_atomic_disable(struct drm_crtc *crtc,
>
> crtc->state->event = NULL;
> }
> -
> - meson_crtc->enabled = false;
> }
>
> static void meson_crtc_atomic_begin(struct drm_crtc *crtc,
> @@ -163,9 +147,6 @@ static void meson_crtc_atomic_begin(struct drm_crtc *crtc,
> struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
> unsigned long flags;
>
> - if (crtc->state->enable && !meson_crtc->enabled)
> - meson_crtc_enable(crtc);
> -
> if (crtc->state->event) {
> WARN_ON(drm_crtc_vblank_get(crtc) != 0);
>
> diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
> index 3ee4d4a4ecba..a74d861ddceb 100644
> --- a/drivers/gpu/drm/meson/meson_drv.c
> +++ b/drivers/gpu/drm/meson/meson_drv.c
> @@ -75,6 +75,11 @@ static const struct drm_mode_config_funcs meson_mode_config_funcs = {
> .fb_create = drm_gem_fb_create,
> };
>
> +
> +static const struct drm_mode_config_helper_funcs meson_mode_config_helpers = {
> + .atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
> +};
> +
> static irqreturn_t meson_irq(int irq, void *arg)
> {
> struct drm_device *dev = arg;
> @@ -266,6 +271,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> drm->mode_config.max_width = 3840;
> drm->mode_config.max_height = 2160;
> drm->mode_config.funcs = &meson_mode_config_funcs;
> + drm->mode_config.helper_private = &meson_mode_config_helpers;
>
> /* Hardware Initialization */
>
> --
> 2.20.1
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
On 15/01/2019 13:06, Daniel Vetter wrote:
> On Mon, Jan 14, 2019 at 04:31:18PM +0100, Neil Armstrong wrote:
>> Since commit 2bcd3ecab773 when switching mode from X11 (ubuntu mate for
>> example) the display gets blurry, looking like an invalid framebuffer width.
>>
>> This commit fixed atomic crtc modesetting in a totally wrong way and
>> introduced a local unnecessary ->enabled crtc state.
>>
>> This commit reverts the crctc _begin() and _enable() changes and simply
>> adds drm_atomic_helper_commit_tail_rpm as helper.
>>
>> Reported-by: Tony McKahan <[email protected]>
>> Suggested-by: Daniel Vetter <[email protected]>
>> Fixes: 2bcd3ecab773 ("drm/meson: Fixes for drm_crtc_vblank_on/off support")
>> Signed-off-by: Neil Armstrong <[email protected]>
>
> For the record (I already acked this on irc):
Thanks, I got it, I was checking against the known regression to see if it doesn't
add a new one !
>
> Acked-by: Daniel Vetter <[email protected]>
Applied to drm-misc-fixes
Neil
>> ---
>> drivers/gpu/drm/meson/meson_crtc.c | 23 ++---------------------
>> drivers/gpu/drm/meson/meson_drv.c | 6 ++++++
>> 2 files changed, 8 insertions(+), 21 deletions(-)
>>
>> Changes since v1:
>> - drop the unecessary local ->enabled logic
>> - use drm_atomic_helper_commit_tail_rpm as atomic_commit_tail helper
>>
>> diff --git a/drivers/gpu/drm/meson/meson_crtc.c b/drivers/gpu/drm/meson/meson_crtc.c
>> index 75d97f1b2e8f..4f5c67f70c4d 100644
>> --- a/drivers/gpu/drm/meson/meson_crtc.c
>> +++ b/drivers/gpu/drm/meson/meson_crtc.c
>> @@ -46,7 +46,6 @@ struct meson_crtc {
>> struct drm_crtc base;
>> struct drm_pending_vblank_event *event;
>> struct meson_drm *priv;
>> - bool enabled;
>> };
>> #define to_meson_crtc(x) container_of(x, struct meson_crtc, base)
>>
>> @@ -82,7 +81,8 @@ static const struct drm_crtc_funcs meson_crtc_funcs = {
>>
>> };
>>
>> -static void meson_crtc_enable(struct drm_crtc *crtc)
>> +static void meson_crtc_atomic_enable(struct drm_crtc *crtc,
>> + struct drm_crtc_state *old_state)
>> {
>> struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
>> struct drm_crtc_state *crtc_state = crtc->state;
>> @@ -108,20 +108,6 @@ static void meson_crtc_enable(struct drm_crtc *crtc)
>>
>> drm_crtc_vblank_on(crtc);
>>
>> - meson_crtc->enabled = true;
>> -}
>> -
>> -static void meson_crtc_atomic_enable(struct drm_crtc *crtc,
>> - struct drm_crtc_state *old_state)
>> -{
>> - struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
>> - struct meson_drm *priv = meson_crtc->priv;
>> -
>> - DRM_DEBUG_DRIVER("\n");
>> -
>> - if (!meson_crtc->enabled)
>> - meson_crtc_enable(crtc);
>> -
>> priv->viu.osd1_enabled = true;
>> }
>>
>> @@ -153,8 +139,6 @@ static void meson_crtc_atomic_disable(struct drm_crtc *crtc,
>>
>> crtc->state->event = NULL;
>> }
>> -
>> - meson_crtc->enabled = false;
>> }
>>
>> static void meson_crtc_atomic_begin(struct drm_crtc *crtc,
>> @@ -163,9 +147,6 @@ static void meson_crtc_atomic_begin(struct drm_crtc *crtc,
>> struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
>> unsigned long flags;
>>
>> - if (crtc->state->enable && !meson_crtc->enabled)
>> - meson_crtc_enable(crtc);
>> -
>> if (crtc->state->event) {
>> WARN_ON(drm_crtc_vblank_get(crtc) != 0);
>>
>> diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
>> index 3ee4d4a4ecba..a74d861ddceb 100644
>> --- a/drivers/gpu/drm/meson/meson_drv.c
>> +++ b/drivers/gpu/drm/meson/meson_drv.c
>> @@ -75,6 +75,11 @@ static const struct drm_mode_config_funcs meson_mode_config_funcs = {
>> .fb_create = drm_gem_fb_create,
>> };
>>
>> +
>> +static const struct drm_mode_config_helper_funcs meson_mode_config_helpers = {
>> + .atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
>> +};
>> +
>> static irqreturn_t meson_irq(int irq, void *arg)
>> {
>> struct drm_device *dev = arg;
>> @@ -266,6 +271,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
>> drm->mode_config.max_width = 3840;
>> drm->mode_config.max_height = 2160;
>> drm->mode_config.funcs = &meson_mode_config_funcs;
>> + drm->mode_config.helper_private = &meson_mode_config_helpers;
>>
>> /* Hardware Initialization */
>>
>> --
>> 2.20.1
>>
>
Hi Stable kernel team,
On 14/01/2019 16:31, Neil Armstrong wrote:
> Since commit 2bcd3ecab773 when switching mode from X11 (ubuntu mate for
> example) the display gets blurry, looking like an invalid framebuffer width.
>
> This commit fixed atomic crtc modesetting in a totally wrong way and
> introduced a local unnecessary ->enabled crtc state.
>
> This commit reverts the crctc _begin() and _enable() changes and simply
> adds drm_atomic_helper_commit_tail_rpm as helper.
>
> Reported-by: Tony McKahan <[email protected]>
> Suggested-by: Daniel Vetter <[email protected]>
> Fixes: 2bcd3ecab773 ("drm/meson: Fixes for drm_crtc_vblank_on/off support")
> Signed-off-by: Neil Armstrong <[email protected]>
This fix has landed in linus master with id ce0210c12433031aba3bbacd75f4c02ab77f2004
could it be applied to 4.19 and 4.20 stable trees ?
Thanks,
Neil
> ---
> drivers/gpu/drm/meson/meson_crtc.c | 23 ++---------------------
> drivers/gpu/drm/meson/meson_drv.c | 6 ++++++
> 2 files changed, 8 insertions(+), 21 deletions(-)
>
> Changes since v1:
> - drop the unecessary local ->enabled logic
> - use drm_atomic_helper_commit_tail_rpm as atomic_commit_tail helper
>
> diff --git a/drivers/gpu/drm/meson/meson_crtc.c b/drivers/gpu/drm/meson/meson_crtc.c
> index 75d97f1b2e8f..4f5c67f70c4d 100644
> --- a/drivers/gpu/drm/meson/meson_crtc.c
> +++ b/drivers/gpu/drm/meson/meson_crtc.c
> @@ -46,7 +46,6 @@ struct meson_crtc {
> struct drm_crtc base;
> struct drm_pending_vblank_event *event;
> struct meson_drm *priv;
> - bool enabled;
> };
> #define to_meson_crtc(x) container_of(x, struct meson_crtc, base)
>
> @@ -82,7 +81,8 @@ static const struct drm_crtc_funcs meson_crtc_funcs = {
>
> };
>
> -static void meson_crtc_enable(struct drm_crtc *crtc)
> +static void meson_crtc_atomic_enable(struct drm_crtc *crtc,
> + struct drm_crtc_state *old_state)
> {
> struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
> struct drm_crtc_state *crtc_state = crtc->state;
> @@ -108,20 +108,6 @@ static void meson_crtc_enable(struct drm_crtc *crtc)
>
> drm_crtc_vblank_on(crtc);
>
> - meson_crtc->enabled = true;
> -}
> -
> -static void meson_crtc_atomic_enable(struct drm_crtc *crtc,
> - struct drm_crtc_state *old_state)
> -{
> - struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
> - struct meson_drm *priv = meson_crtc->priv;
> -
> - DRM_DEBUG_DRIVER("\n");
> -
> - if (!meson_crtc->enabled)
> - meson_crtc_enable(crtc);
> -
> priv->viu.osd1_enabled = true;
> }
>
> @@ -153,8 +139,6 @@ static void meson_crtc_atomic_disable(struct drm_crtc *crtc,
>
> crtc->state->event = NULL;
> }
> -
> - meson_crtc->enabled = false;
> }
>
> static void meson_crtc_atomic_begin(struct drm_crtc *crtc,
> @@ -163,9 +147,6 @@ static void meson_crtc_atomic_begin(struct drm_crtc *crtc,
> struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
> unsigned long flags;
>
> - if (crtc->state->enable && !meson_crtc->enabled)
> - meson_crtc_enable(crtc);
> -
> if (crtc->state->event) {
> WARN_ON(drm_crtc_vblank_get(crtc) != 0);
>
> diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
> index 3ee4d4a4ecba..a74d861ddceb 100644
> --- a/drivers/gpu/drm/meson/meson_drv.c
> +++ b/drivers/gpu/drm/meson/meson_drv.c
> @@ -75,6 +75,11 @@ static const struct drm_mode_config_funcs meson_mode_config_funcs = {
> .fb_create = drm_gem_fb_create,
> };
>
> +
> +static const struct drm_mode_config_helper_funcs meson_mode_config_helpers = {
> + .atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
> +};
> +
> static irqreturn_t meson_irq(int irq, void *arg)
> {
> struct drm_device *dev = arg;
> @@ -266,6 +271,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> drm->mode_config.max_width = 3840;
> drm->mode_config.max_height = 2160;
> drm->mode_config.funcs = &meson_mode_config_funcs;
> + drm->mode_config.helper_private = &meson_mode_config_helpers;
>
> /* Hardware Initialization */
>
>
On Mon, Jan 28, 2019 at 05:21:12PM +0100, Neil Armstrong wrote:
> Hi Stable kernel team,
>
> On 14/01/2019 16:31, Neil Armstrong wrote:
> > Since commit 2bcd3ecab773 when switching mode from X11 (ubuntu mate for
> > example) the display gets blurry, looking like an invalid framebuffer width.
> >
> > This commit fixed atomic crtc modesetting in a totally wrong way and
> > introduced a local unnecessary ->enabled crtc state.
> >
> > This commit reverts the crctc _begin() and _enable() changes and simply
> > adds drm_atomic_helper_commit_tail_rpm as helper.
> >
> > Reported-by: Tony McKahan <[email protected]>
> > Suggested-by: Daniel Vetter <[email protected]>
> > Fixes: 2bcd3ecab773 ("drm/meson: Fixes for drm_crtc_vblank_on/off support")
> > Signed-off-by: Neil Armstrong <[email protected]>
>
> This fix has landed in linus master with id ce0210c12433031aba3bbacd75f4c02ab77f2004
>
> could it be applied to 4.19 and 4.20 stable trees ?
Now queued up, thanks.
greg k-h