From a743d7582db9aba0e7078d6386bdad2756309dba Mon Sep 17 00:00:00 2001 From: Dhinakaran Pandiyan Date: Thu, 22 Dec 2016 00:50:42 -0800 Subject: [PATCH] drm: Wrap the check for atomic_commit implementation This check is useful for drivers that do not have DRIVER_ATOMIC set but have atomic modesetting internally implemented. Wrap the check into a function since this is used in many places and as a bonus, the function name helps to document what the check is for. v2: Change return type to bool (Ville) Move the function drm_atomic.h (Daniel) Fixed comment marker for documentation Suggested-by: Daniel Vetter Cc: Daniel Vetter Cc: Ben Skeggs Signed-off-by: Dhinakaran Pandiyan [danvet: Move back to drmP.h because include hell.] Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1482396643-32456-1-git-send-email-dhinakaran.pandiyan@intel.com --- drivers/gpu/drm/drm_fb_helper.c | 6 +++--- drivers/gpu/drm/nouveau/nouveau_connector.c | 5 +++-- drivers/gpu/drm/nouveau/nouveau_display.c | 6 +++--- drivers/gpu/drm/nouveau/nouveau_fbcon.c | 3 ++- include/drm/drmP.h | 13 +++++++++++++ include/drm/drm_atomic.h | 1 - 6 files changed, 24 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 145d55fef69e..730342cbe899 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -405,7 +405,7 @@ static int restore_fbdev_mode(struct drm_fb_helper *fb_helper) drm_warn_on_modeset_not_all_locked(dev); - if (dev->mode_config.funcs->atomic_commit) + if (drm_drv_uses_atomic_modeset(dev)) return restore_fbdev_mode_atomic(fb_helper); drm_for_each_plane(plane, dev) { @@ -1444,7 +1444,7 @@ int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, return -EBUSY; } - if (dev->mode_config.funcs->atomic_commit) { + if (drm_drv_uses_atomic_modeset(dev)) { ret = pan_display_atomic(var, info); goto unlock; } @@ -2060,7 +2060,7 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper, * NULL we fallback to the default drm_atomic_helper_best_encoder() * helper. */ - if (fb_helper->dev->mode_config.funcs->atomic_commit && + if (drm_drv_uses_atomic_modeset(fb_helper->dev) && !connector_funcs->best_encoder) encoder = drm_atomic_helper_best_encoder(connector); else diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 947c200655b4..966d20ab4de4 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -33,6 +33,7 @@ #include #include #include +#include #include "nouveau_reg.h" #include "nouveau_drv.h" @@ -769,7 +770,7 @@ nouveau_connector_set_property(struct drm_connector *connector, struct drm_encoder *encoder = to_drm_encoder(nv_encoder); int ret; - if (connector->dev->mode_config.funcs->atomic_commit) + if (drm_drv_uses_atomic_modeset(connector->dev)) return drm_atomic_helper_connector_set_property(connector, property, value); ret = connector->funcs->atomic_set_property(&nv_connector->base, @@ -1074,7 +1075,7 @@ nouveau_connector_helper_funcs = { static int nouveau_connector_dpms(struct drm_connector *connector, int mode) { - if (connector->dev->mode_config.funcs->atomic_commit) + if (drm_drv_uses_atomic_modeset(connector->dev)) return drm_atomic_helper_connector_dpms(connector, mode); return drm_helper_connector_dpms(connector, mode); } diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index c5cf88859b0b..add353e230f4 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -162,7 +162,7 @@ nouveau_display_vblstamp(struct drm_device *dev, unsigned int pipe, list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { if (nouveau_crtc(crtc)->index == pipe) { struct drm_display_mode *mode; - if (dev->mode_config.funcs->atomic_commit) + if (drm_drv_uses_atomic_modeset(dev)) mode = &crtc->state->adjusted_mode; else mode = &crtc->hwmode; @@ -738,7 +738,7 @@ nouveau_display_suspend(struct drm_device *dev, bool runtime) struct nouveau_display *disp = nouveau_display(dev); struct drm_crtc *crtc; - if (dev->mode_config.funcs->atomic_commit) { + if (drm_drv_uses_atomic_modeset(dev)) { if (!runtime) { disp->suspend = nouveau_atomic_suspend(dev); if (IS_ERR(disp->suspend)) { @@ -784,7 +784,7 @@ nouveau_display_resume(struct drm_device *dev, bool runtime) struct drm_crtc *crtc; int ret; - if (dev->mode_config.funcs->atomic_commit) { + if (drm_drv_uses_atomic_modeset(dev)) { nouveau_display_init(dev); if (disp->suspend) { drm_atomic_helper_resume(dev, disp->suspend); diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c index 5600f6c64497..9de6abb65781 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c @@ -41,6 +41,7 @@ #include #include #include +#include #include "nouveau_drv.h" #include "nouveau_gem.h" @@ -524,7 +525,7 @@ nouveau_fbcon_init(struct drm_device *dev) preferred_bpp = 32; /* disable all the possible outputs/crtcs before entering KMS mode */ - if (!dev->mode_config.funcs->atomic_commit) + if (!drm_drv_uses_atomic_modeset(dev)) drm_helper_disable_unused_functions(dev); ret = drm_fb_helper_initial_config(&fbcon->helper, preferred_bpp); diff --git a/include/drm/drmP.h b/include/drm/drmP.h index a9cfd33c7b1a..8671ddd256fc 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -634,6 +634,19 @@ struct drm_device { int switch_power_state; }; +/** + * drm_drv_uses_atomic_modeset - check if the driver implements + * atomic_commit() + * @dev: DRM device + * + * This check is useful if drivers do not have DRIVER_ATOMIC set but + * have atomic modesetting internally implemented. + */ +static inline bool drm_drv_uses_atomic_modeset(struct drm_device *dev) +{ + return dev->mode_config.funcs->atomic_commit != NULL; +} + #include #define DRM_SWITCH_POWER_ON 0 diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h index 8cc7ca2079fb..b0ebe0fafc41 100644 --- a/include/drm/drm_atomic.h +++ b/include/drm/drm_atomic.h @@ -419,5 +419,4 @@ drm_atomic_crtc_needs_modeset(const struct drm_crtc_state *state) state->connectors_changed; } - #endif /* DRM_ATOMIC_H_ */ -- 2.39.5