| Message ID | 20210219120032.260676-6-maxime@cerno.tech (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | [v3,01/11] drm/atomic: Pass the full state to planes async atomic check and update | expand |
Am 19.02.21 um 13:00 schrieb Maxime Ripard: > Many drivers reference the plane->state pointer in order to get the > current plane state in their atomic_check hook, which would be the old > plane state in the global atomic state since _swap_state hasn't happened > when atomic_check is run. > > Use the drm_atomic_get_old_plane_state helper to get that state to make > it more obvious. > > This was made using the coccinelle script below: > > @ plane_atomic_func @ > identifier helpers; > identifier func; > @@ > > static struct drm_plane_helper_funcs helpers = { > ..., > .atomic_check = func, > ..., > }; > > @ replaces_old_state @ > identifier plane_atomic_func.func; > identifier plane, state, plane_state; > @@ > > func(struct drm_plane *plane, struct drm_atomic_state *state) { > ... > - struct drm_plane_state *plane_state = plane->state; > + struct drm_plane_state *plane_state = drm_atomic_get_old_plane_state(state, plane); > ... > } > > @@ > identifier plane_atomic_func.func; > identifier plane, state, plane_state; > @@ > > func(struct drm_plane *plane, struct drm_atomic_state *state) { > struct drm_plane_state *plane_state = drm_atomic_get_old_plane_state(state, plane); > <... > - plane->state > + plane_state > ...> > } > > @ adds_old_state @ > identifier plane_atomic_func.func; > identifier plane, state; > @@ > > func(struct drm_plane *plane, struct drm_atomic_state *state) { > + struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, plane); > <... > - plane->state > + old_plane_state > ...> > } > > @ include depends on adds_old_state || replaces_old_state @ > @@ > > #include <drm/drm_atomic.h> > > @ no_include depends on !include && (adds_old_state || replaces_old_state) @ > @@ > > + #include <drm/drm_atomic.h> > #include <drm/...> > > Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> > Signed-off-by: Maxime Ripard <maxime@cerno.tech> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> However, I find 'old plane state' somewhat confusing in this context, because it's actually the current plane state. Would it make sense to use drm_atomic_get_existing_plane_state() instead? Best regards Thomas > > --- > > Changes from v2: > - s/.../<.../ in the coccinelle script as suggested by Ville > --- > drivers/gpu/drm/imx/ipuv3-plane.c | 3 ++- > drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 16 +++++++++------- > drivers/gpu/drm/ingenic/ingenic-ipu.c | 8 +++++--- > drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c | 4 +++- > drivers/gpu/drm/tilcdc/tilcdc_plane.c | 3 ++- > 5 files changed, 21 insertions(+), 13 deletions(-) > > diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c > index b5f6123850bb..6484592e3f86 100644 > --- a/drivers/gpu/drm/imx/ipuv3-plane.c > +++ b/drivers/gpu/drm/imx/ipuv3-plane.c > @@ -341,7 +341,8 @@ static int ipu_plane_atomic_check(struct drm_plane *plane, > { > struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, > plane); > - struct drm_plane_state *old_state = plane->state; > + struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, > + plane); > struct drm_crtc_state *crtc_state; > struct device *dev = plane->dev->dev; > struct drm_framebuffer *fb = new_state->fb; > diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c > index e6d7d0a04ddb..c022d9f1e737 100644 > --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c > +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c > @@ -361,11 +361,13 @@ static void ingenic_drm_crtc_atomic_flush(struct drm_crtc *crtc, > static int ingenic_drm_plane_atomic_check(struct drm_plane *plane, > struct drm_atomic_state *state) > { > + struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, > + plane); > struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, > plane); > struct ingenic_drm *priv = drm_device_get_priv(plane->dev); > struct drm_crtc_state *crtc_state; > - struct drm_crtc *crtc = new_plane_state->crtc ?: plane->state->crtc; > + struct drm_crtc *crtc = new_plane_state->crtc ?: old_plane_state->crtc; > int ret; > > if (!crtc) > @@ -399,12 +401,12 @@ static int ingenic_drm_plane_atomic_check(struct drm_plane *plane, > * its position, size or depth. > */ > if (priv->soc_info->has_osd && > - (!plane->state->fb || !new_plane_state->fb || > - plane->state->crtc_x != new_plane_state->crtc_x || > - plane->state->crtc_y != new_plane_state->crtc_y || > - plane->state->crtc_w != new_plane_state->crtc_w || > - plane->state->crtc_h != new_plane_state->crtc_h || > - plane->state->fb->format->format != new_plane_state->fb->format->format)) > + (!old_plane_state->fb || !new_plane_state->fb || > + old_plane_state->crtc_x != new_plane_state->crtc_x || > + old_plane_state->crtc_y != new_plane_state->crtc_y || > + old_plane_state->crtc_w != new_plane_state->crtc_w || > + old_plane_state->crtc_h != new_plane_state->crtc_h || > + old_plane_state->fb->format->format != new_plane_state->fb->format->format)) > crtc_state->mode_changed = true; > > return 0; > diff --git a/drivers/gpu/drm/ingenic/ingenic-ipu.c b/drivers/gpu/drm/ingenic/ingenic-ipu.c > index 1e1b0fe095bd..3d072b25e1c4 100644 > --- a/drivers/gpu/drm/ingenic/ingenic-ipu.c > +++ b/drivers/gpu/drm/ingenic/ingenic-ipu.c > @@ -516,11 +516,13 @@ static void ingenic_ipu_plane_atomic_update(struct drm_plane *plane, > static int ingenic_ipu_plane_atomic_check(struct drm_plane *plane, > struct drm_atomic_state *state) > { > + struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, > + plane); > struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, > plane); > unsigned int num_w, denom_w, num_h, denom_h, xres, yres, max_w, max_h; > struct ingenic_ipu *ipu = plane_to_ingenic_ipu(plane); > - struct drm_crtc *crtc = new_plane_state->crtc ?: plane->state->crtc; > + struct drm_crtc *crtc = new_plane_state->crtc ?: old_plane_state->crtc; > struct drm_crtc_state *crtc_state; > > if (!crtc) > @@ -531,7 +533,7 @@ static int ingenic_ipu_plane_atomic_check(struct drm_plane *plane, > return -EINVAL; > > /* Request a full modeset if we are enabling or disabling the IPU. */ > - if (!plane->state->crtc ^ !new_plane_state->crtc) > + if (!old_plane_state->crtc ^ !new_plane_state->crtc) > crtc_state->mode_changed = true; > > if (!new_plane_state->crtc || > @@ -552,7 +554,7 @@ static int ingenic_ipu_plane_atomic_check(struct drm_plane *plane, > if (((new_plane_state->src_w >> 16) & 1) || (new_plane_state->crtc_w & 1)) > return -EINVAL; > > - if (!osd_changed(new_plane_state, plane->state)) > + if (!osd_changed(new_plane_state, old_plane_state)) > return 0; > > crtc_state->mode_changed = true; > diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c > index 4aac6217a5ad..6ce6ce09fecc 100644 > --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c > +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c > @@ -406,12 +406,14 @@ static int mdp5_plane_atomic_check_with_state(struct drm_crtc_state *crtc_state, > static int mdp5_plane_atomic_check(struct drm_plane *plane, > struct drm_atomic_state *state) > { > + struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, > + plane); > struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, > plane); > struct drm_crtc *crtc; > struct drm_crtc_state *crtc_state; > > - crtc = new_plane_state->crtc ? new_plane_state->crtc : plane->state->crtc; > + crtc = new_plane_state->crtc ? new_plane_state->crtc : old_plane_state->crtc; > if (!crtc) > return 0; > > diff --git a/drivers/gpu/drm/tilcdc/tilcdc_plane.c b/drivers/gpu/drm/tilcdc/tilcdc_plane.c > index ebdd42dcaf82..c86258132432 100644 > --- a/drivers/gpu/drm/tilcdc/tilcdc_plane.c > +++ b/drivers/gpu/drm/tilcdc/tilcdc_plane.c > @@ -26,7 +26,8 @@ static int tilcdc_plane_atomic_check(struct drm_plane *plane, > struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, > plane); > struct drm_crtc_state *crtc_state; > - struct drm_plane_state *old_state = plane->state; > + struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, > + plane); > unsigned int pitch; > > if (!new_state->crtc) >
Hi Thomas, On Mon, Feb 22, 2021 at 10:12:49AM +0100, Thomas Zimmermann wrote: > Am 19.02.21 um 13:00 schrieb Maxime Ripard: > > Many drivers reference the plane->state pointer in order to get the > > current plane state in their atomic_check hook, which would be the old > > plane state in the global atomic state since _swap_state hasn't happened > > when atomic_check is run. > > > > Use the drm_atomic_get_old_plane_state helper to get that state to make > > it more obvious. > > > > This was made using the coccinelle script below: > > > > @ plane_atomic_func @ > > identifier helpers; > > identifier func; > > @@ > > > > static struct drm_plane_helper_funcs helpers = { > > ..., > > .atomic_check = func, > > ..., > > }; > > > > @ replaces_old_state @ > > identifier plane_atomic_func.func; > > identifier plane, state, plane_state; > > @@ > > > > func(struct drm_plane *plane, struct drm_atomic_state *state) { > > ... > > - struct drm_plane_state *plane_state = plane->state; > > + struct drm_plane_state *plane_state = drm_atomic_get_old_plane_state(state, plane); > > ... > > } > > > > @@ > > identifier plane_atomic_func.func; > > identifier plane, state, plane_state; > > @@ > > > > func(struct drm_plane *plane, struct drm_atomic_state *state) { > > struct drm_plane_state *plane_state = drm_atomic_get_old_plane_state(state, plane); > > <... > > - plane->state > > + plane_state > > ...> > > } > > > > @ adds_old_state @ > > identifier plane_atomic_func.func; > > identifier plane, state; > > @@ > > > > func(struct drm_plane *plane, struct drm_atomic_state *state) { > > + struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, plane); > > <... > > - plane->state > > + old_plane_state > > ...> > > } > > > > @ include depends on adds_old_state || replaces_old_state @ > > @@ > > > > #include <drm/drm_atomic.h> > > > > @ no_include depends on !include && (adds_old_state || replaces_old_state) @ > > @@ > > > > + #include <drm/drm_atomic.h> > > #include <drm/...> > > > > Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> > > Signed-off-by: Maxime Ripard <maxime@cerno.tech> > > Acked-by: Thomas Zimmermann <tzimmermann@suse.de> > > However, I find 'old plane state' somewhat confusing in this context, > because it's actually the current plane state. Would it make sense to use > drm_atomic_get_existing_plane_state() instead? drm_atomic_get_existing_plane_state is deprecated nowadays, in favour of either drm_atomic_get_old_plane_state or drm_atomic_get_new_plane_state Maxime
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c index b5f6123850bb..6484592e3f86 100644 --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3-plane.c @@ -341,7 +341,8 @@ static int ipu_plane_atomic_check(struct drm_plane *plane, { struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane); - struct drm_plane_state *old_state = plane->state; + struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, + plane); struct drm_crtc_state *crtc_state; struct device *dev = plane->dev->dev; struct drm_framebuffer *fb = new_state->fb; diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c index e6d7d0a04ddb..c022d9f1e737 100644 --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c @@ -361,11 +361,13 @@ static void ingenic_drm_crtc_atomic_flush(struct drm_crtc *crtc, static int ingenic_drm_plane_atomic_check(struct drm_plane *plane, struct drm_atomic_state *state) { + struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, + plane); struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane); struct ingenic_drm *priv = drm_device_get_priv(plane->dev); struct drm_crtc_state *crtc_state; - struct drm_crtc *crtc = new_plane_state->crtc ?: plane->state->crtc; + struct drm_crtc *crtc = new_plane_state->crtc ?: old_plane_state->crtc; int ret; if (!crtc) @@ -399,12 +401,12 @@ static int ingenic_drm_plane_atomic_check(struct drm_plane *plane, * its position, size or depth. */ if (priv->soc_info->has_osd && - (!plane->state->fb || !new_plane_state->fb || - plane->state->crtc_x != new_plane_state->crtc_x || - plane->state->crtc_y != new_plane_state->crtc_y || - plane->state->crtc_w != new_plane_state->crtc_w || - plane->state->crtc_h != new_plane_state->crtc_h || - plane->state->fb->format->format != new_plane_state->fb->format->format)) + (!old_plane_state->fb || !new_plane_state->fb || + old_plane_state->crtc_x != new_plane_state->crtc_x || + old_plane_state->crtc_y != new_plane_state->crtc_y || + old_plane_state->crtc_w != new_plane_state->crtc_w || + old_plane_state->crtc_h != new_plane_state->crtc_h || + old_plane_state->fb->format->format != new_plane_state->fb->format->format)) crtc_state->mode_changed = true; return 0; diff --git a/drivers/gpu/drm/ingenic/ingenic-ipu.c b/drivers/gpu/drm/ingenic/ingenic-ipu.c index 1e1b0fe095bd..3d072b25e1c4 100644 --- a/drivers/gpu/drm/ingenic/ingenic-ipu.c +++ b/drivers/gpu/drm/ingenic/ingenic-ipu.c @@ -516,11 +516,13 @@ static void ingenic_ipu_plane_atomic_update(struct drm_plane *plane, static int ingenic_ipu_plane_atomic_check(struct drm_plane *plane, struct drm_atomic_state *state) { + struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, + plane); struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane); unsigned int num_w, denom_w, num_h, denom_h, xres, yres, max_w, max_h; struct ingenic_ipu *ipu = plane_to_ingenic_ipu(plane); - struct drm_crtc *crtc = new_plane_state->crtc ?: plane->state->crtc; + struct drm_crtc *crtc = new_plane_state->crtc ?: old_plane_state->crtc; struct drm_crtc_state *crtc_state; if (!crtc) @@ -531,7 +533,7 @@ static int ingenic_ipu_plane_atomic_check(struct drm_plane *plane, return -EINVAL; /* Request a full modeset if we are enabling or disabling the IPU. */ - if (!plane->state->crtc ^ !new_plane_state->crtc) + if (!old_plane_state->crtc ^ !new_plane_state->crtc) crtc_state->mode_changed = true; if (!new_plane_state->crtc || @@ -552,7 +554,7 @@ static int ingenic_ipu_plane_atomic_check(struct drm_plane *plane, if (((new_plane_state->src_w >> 16) & 1) || (new_plane_state->crtc_w & 1)) return -EINVAL; - if (!osd_changed(new_plane_state, plane->state)) + if (!osd_changed(new_plane_state, old_plane_state)) return 0; crtc_state->mode_changed = true; diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c index 4aac6217a5ad..6ce6ce09fecc 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c @@ -406,12 +406,14 @@ static int mdp5_plane_atomic_check_with_state(struct drm_crtc_state *crtc_state, static int mdp5_plane_atomic_check(struct drm_plane *plane, struct drm_atomic_state *state) { + struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, + plane); struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane); struct drm_crtc *crtc; struct drm_crtc_state *crtc_state; - crtc = new_plane_state->crtc ? new_plane_state->crtc : plane->state->crtc; + crtc = new_plane_state->crtc ? new_plane_state->crtc : old_plane_state->crtc; if (!crtc) return 0; diff --git a/drivers/gpu/drm/tilcdc/tilcdc_plane.c b/drivers/gpu/drm/tilcdc/tilcdc_plane.c index ebdd42dcaf82..c86258132432 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_plane.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_plane.c @@ -26,7 +26,8 @@ static int tilcdc_plane_atomic_check(struct drm_plane *plane, struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane); struct drm_crtc_state *crtc_state; - struct drm_plane_state *old_state = plane->state; + struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, + plane); unsigned int pitch; if (!new_state->crtc)
Many drivers reference the plane->state pointer in order to get the current plane state in their atomic_check hook, which would be the old plane state in the global atomic state since _swap_state hasn't happened when atomic_check is run. Use the drm_atomic_get_old_plane_state helper to get that state to make it more obvious. This was made using the coccinelle script below: @ plane_atomic_func @ identifier helpers; identifier func; @@ static struct drm_plane_helper_funcs helpers = { ..., .atomic_check = func, ..., }; @ replaces_old_state @ identifier plane_atomic_func.func; identifier plane, state, plane_state; @@ func(struct drm_plane *plane, struct drm_atomic_state *state) { ... - struct drm_plane_state *plane_state = plane->state; + struct drm_plane_state *plane_state = drm_atomic_get_old_plane_state(state, plane); ... } @@ identifier plane_atomic_func.func; identifier plane, state, plane_state; @@ func(struct drm_plane *plane, struct drm_atomic_state *state) { struct drm_plane_state *plane_state = drm_atomic_get_old_plane_state(state, plane); <... - plane->state + plane_state ...> } @ adds_old_state @ identifier plane_atomic_func.func; identifier plane, state; @@ func(struct drm_plane *plane, struct drm_atomic_state *state) { + struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, plane); <... - plane->state + old_plane_state ...> } @ include depends on adds_old_state || replaces_old_state @ @@ #include <drm/drm_atomic.h> @ no_include depends on !include && (adds_old_state || replaces_old_state) @ @@ + #include <drm/drm_atomic.h> #include <drm/...> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> --- Changes from v2: - s/.../<.../ in the coccinelle script as suggested by Ville --- drivers/gpu/drm/imx/ipuv3-plane.c | 3 ++- drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 16 +++++++++------- drivers/gpu/drm/ingenic/ingenic-ipu.c | 8 +++++--- drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c | 4 +++- drivers/gpu/drm/tilcdc/tilcdc_plane.c | 3 ++- 5 files changed, 21 insertions(+), 13 deletions(-)