From: Daniel Vetter Date: Wed, 8 Mar 2017 14:12:56 +0000 (+0100) Subject: drm: Create DEFINE_DRM_GEM_CMA_FOPS and roll it out to drivers X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=d55f7e5d54c31c8ed61fdbfc59835cd6804ba954;p=openwrt%2Fstaging%2Fblogic.git drm: Create DEFINE_DRM_GEM_CMA_FOPS and roll it out to drivers Less code ftw. This converts all drivers except the tinydrm helper module. That one needs more work, since it gets the THIS_MODULE reference from tinydrm.ko instead of the actual driver module like it should. Probably needs a similar trick like I used here with generating the entire struct with a macro. Cc: Noralf Trønnes Reviewed-by: Sean Paul Reviewed-by: Liviu Dudau Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20170308141257.12119-24-daniel.vetter@ffwll.ch --- diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c index 4840dc277339..0e74880b5e94 100644 --- a/drivers/gpu/drm/arm/hdlcd_drv.c +++ b/drivers/gpu/drm/arm/hdlcd_drv.c @@ -239,17 +239,7 @@ static int hdlcd_debugfs_init(struct drm_minor *minor) } #endif -static const struct file_operations fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, - .compat_ioctl = drm_compat_ioctl, - .poll = drm_poll, - .read = drm_read, - .llseek = noop_llseek, - .mmap = drm_gem_cma_mmap, -}; +DEFINE_DRM_GEM_CMA_FOPS(fops); static struct drm_driver hdlcd_driver = { .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c index a9608a2e5a29..ea2546f766c2 100644 --- a/drivers/gpu/drm/arm/malidp_drv.c +++ b/drivers/gpu/drm/arm/malidp_drv.c @@ -178,17 +178,7 @@ static void malidp_lastclose(struct drm_device *drm) drm_fbdev_cma_restore_mode(malidp->fbdev); } -static const struct file_operations fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, - .compat_ioctl = drm_compat_ioctl, - .poll = drm_poll, - .read = drm_read, - .llseek = noop_llseek, - .mmap = drm_gem_cma_mmap, -}; +DEFINE_DRM_GEM_CMA_FOPS(fops); static struct drm_driver malidp_driver = { .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC | diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c index 970bd87d7cce..178acbf5f6c5 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c @@ -724,17 +724,7 @@ static void atmel_hlcdc_dc_irq_uninstall(struct drm_device *dev) regmap_read(dc->hlcdc->regmap, ATMEL_HLCDC_ISR, &isr); } -static const struct file_operations fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, - .compat_ioctl = drm_compat_ioctl, - .poll = drm_poll, - .read = drm_read, - .llseek = no_llseek, - .mmap = drm_gem_cma_mmap, -}; +DEFINE_DRM_GEM_CMA_FOPS(fops); static struct drm_driver atmel_hlcdc_dc_driver = { .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c index 92848fe75ea6..b42c1334112c 100644 --- a/drivers/gpu/drm/drm_file.c +++ b/drivers/gpu/drm/drm_file.c @@ -89,6 +89,9 @@ DEFINE_MUTEX(drm_global_mutex); * .mmap = drm_gem_mmap, * }; * + * For CMA based drivers there is the DEFINE_DRM_GEM_CMA_FOPS() macro to make + * this simpler. + * * FIXME: We should have a macro for this (and the CMA version) so that drivers * don't have to repeat it all the time. */ diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c b/drivers/gpu/drm/drm_gem_cma_helper.c index 906984d4bec2..f478a597cd79 100644 --- a/drivers/gpu/drm/drm_gem_cma_helper.c +++ b/drivers/gpu/drm/drm_gem_cma_helper.c @@ -338,6 +338,9 @@ static int drm_gem_cma_mmap_obj(struct drm_gem_cma_object *cma_obj, * as their ->mmap() handler in the DRM device file's file_operations * structure. * + * Instead of directly referencing this function, drivers should use the + * DEFINE_DRM_GEM_CMA_FOPS().macro. + * * Returns: * 0 on success or a negative error code on failure. */ diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c index b5391c124c64..6e00f4b267f1 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c @@ -161,17 +161,7 @@ static void fsl_dcu_drm_lastclose(struct drm_device *dev) drm_fbdev_cma_restore_mode(fsl_dev->fbdev); } -static const struct file_operations fsl_dcu_drm_fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, - .compat_ioctl = drm_compat_ioctl, - .poll = drm_poll, - .read = drm_read, - .llseek = no_llseek, - .mmap = drm_gem_cma_mmap, -}; +DEFINE_DRM_GEM_CMA_FOPS(fsl_dcu_drm_fops); static struct drm_driver fsl_dcu_drm_driver = { .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c index 7ec93aec7e88..df4f50713e54 100644 --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c @@ -146,17 +146,7 @@ err_mode_config_cleanup: return ret; } -static const struct file_operations kirin_drm_fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, - .compat_ioctl = drm_compat_ioctl, - .poll = drm_poll, - .read = drm_read, - .llseek = no_llseek, - .mmap = drm_gem_cma_mmap, -}; +DEFINE_DRM_GEM_CMA_FOPS(kirin_drm_fops); static int kirin_gem_cma_dumb_create(struct drm_file *file, struct drm_device *dev, diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c index 4b7b92a7bcf7..70736615983c 100644 --- a/drivers/gpu/drm/imx/imx-drm-core.c +++ b/drivers/gpu/drm/imx/imx-drm-core.c @@ -57,16 +57,7 @@ static void imx_drm_driver_lastclose(struct drm_device *drm) drm_fbdev_cma_restore_mode(imxdrm->fbhelper); } -static const struct file_operations imx_drm_driver_fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, - .mmap = drm_gem_cma_mmap, - .poll = drm_poll, - .read = drm_read, - .llseek = noop_llseek, -}; +DEFINE_DRM_GEM_CMA_FOPS(imx_drm_driver_fops); void imx_drm_connector_destroy(struct drm_connector *connector) { diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c index 8d17d0e59cbe..bc562a07847b 100644 --- a/drivers/gpu/drm/meson/meson_drv.c +++ b/drivers/gpu/drm/meson/meson_drv.c @@ -91,19 +91,7 @@ static irqreturn_t meson_irq(int irq, void *arg) return IRQ_HANDLED; } -static const struct file_operations fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = drm_compat_ioctl, -#endif - .poll = drm_poll, - .read = drm_read, - .llseek = no_llseek, - .mmap = drm_gem_cma_mmap, -}; +DEFINE_DRM_GEM_CMA_FOPS(fops); static struct drm_driver meson_driver = { .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c index a4633ada8429..5ac712325c75 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c @@ -319,19 +319,7 @@ static irqreturn_t mxsfb_irq_handler(int irq, void *data) return IRQ_HANDLED; } -static const struct file_operations fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = drm_compat_ioctl, -#endif - .poll = drm_poll, - .read = drm_read, - .llseek = noop_llseek, - .mmap = drm_gem_cma_mmap, -}; +DEFINE_DRM_GEM_CMA_FOPS(fops); static struct drm_driver mxsfb_driver = { .driver_features = DRIVER_GEM | DRIVER_MODESET | diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index 192346d4fb34..62a3b3e32153 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -226,17 +226,7 @@ static void rcar_du_lastclose(struct drm_device *dev) drm_fbdev_cma_restore_mode(rcdu->fbdev); } -static const struct file_operations rcar_du_fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, - .compat_ioctl = drm_compat_ioctl, - .poll = drm_poll, - .read = drm_read, - .llseek = no_llseek, - .mmap = drm_gem_cma_mmap, -}; +DEFINE_DRM_GEM_CMA_FOPS(rcar_du_fops); static struct drm_driver rcar_du_driver = { .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/shmobile/shmob_drm_drv.c index 1c7b318b8998..800d1d2c435d 100644 --- a/drivers/gpu/drm/shmobile/shmob_drm_drv.c +++ b/drivers/gpu/drm/shmobile/shmob_drm_drv.c @@ -127,17 +127,7 @@ static irqreturn_t shmob_drm_irq(int irq, void *arg) return IRQ_HANDLED; } -static const struct file_operations shmob_drm_fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, - .compat_ioctl = drm_compat_ioctl, - .poll = drm_poll, - .read = drm_read, - .llseek = no_llseek, - .mmap = drm_gem_cma_mmap, -}; +DEFINE_DRM_GEM_CMA_FOPS(shmob_drm_fops); static struct drm_driver shmob_drm_driver = { .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c index 6003c664ba0b..a4b574283269 100644 --- a/drivers/gpu/drm/sti/sti_drv.c +++ b/drivers/gpu/drm/sti/sti_drv.c @@ -167,16 +167,7 @@ static void sti_mode_config_init(struct drm_device *dev) dev->mode_config.funcs = &sti_mode_config_funcs; } -static const struct file_operations sti_driver_fops = { - .owner = THIS_MODULE, - .open = drm_open, - .mmap = drm_gem_cma_mmap, - .poll = drm_poll, - .read = drm_read, - .unlocked_ioctl = drm_ioctl, - .compat_ioctl = drm_compat_ioctl, - .release = drm_release, -}; +DEFINE_DRM_GEM_CMA_FOPS(sti_driver_fops); static struct drm_driver sti_driver = { .driver_features = DRIVER_MODESET | diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c index 9ccf7c4deb6d..329ea56106a5 100644 --- a/drivers/gpu/drm/sun4i/sun4i_drv.c +++ b/drivers/gpu/drm/sun4i/sun4i_drv.c @@ -25,17 +25,7 @@ #include "sun4i_framebuffer.h" #include "sun4i_layer.h" -static const struct file_operations sun4i_drv_fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, - .compat_ioctl = drm_compat_ioctl, - .poll = drm_poll, - .read = drm_read, - .llseek = no_llseek, - .mmap = drm_gem_cma_mmap, -}; +DEFINE_DRM_GEM_CMA_FOPS(sun4i_drv_fops); static struct drm_driver sun4i_drv_driver = { .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_ATOMIC, diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c index 5b4ed0ea7768..d7ae5be56d12 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c @@ -529,17 +529,7 @@ static int tilcdc_debugfs_init(struct drm_minor *minor) } #endif -static const struct file_operations fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, - .compat_ioctl = drm_compat_ioctl, - .poll = drm_poll, - .read = drm_read, - .llseek = no_llseek, - .mmap = drm_gem_cma_mmap, -}; +DEFINE_DRM_GEM_CMA_FOPS(fops); static struct drm_driver tilcdc_driver = { .driver_features = (DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET | diff --git a/drivers/gpu/drm/zte/zx_drm_drv.c b/drivers/gpu/drm/zte/zx_drm_drv.c index b24a70ba4b83..614e854f6be5 100644 --- a/drivers/gpu/drm/zte/zx_drm_drv.c +++ b/drivers/gpu/drm/zte/zx_drm_drv.c @@ -53,19 +53,7 @@ static void zx_drm_lastclose(struct drm_device *drm) drm_fbdev_cma_restore_mode(priv->fbdev); } -static const struct file_operations zx_drm_fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = drm_compat_ioctl, -#endif - .poll = drm_poll, - .read = drm_read, - .llseek = noop_llseek, - .mmap = drm_gem_cma_mmap, -}; +DEFINE_DRM_GEM_CMA_FOPS(zx_drm_fops); static struct drm_driver zx_drm_driver = { .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h index 2abcd5190cc1..f962d33667cf 100644 --- a/include/drm/drm_gem_cma_helper.h +++ b/include/drm/drm_gem_cma_helper.h @@ -26,6 +26,32 @@ to_drm_gem_cma_obj(struct drm_gem_object *gem_obj) return container_of(gem_obj, struct drm_gem_cma_object, base); } +/** + * DEFINE_DRM_GEM_CMA_FOPS() - macro to generate file operations for CMA drivers + * @name: name for the generated structure + * + * This macro autogenerates a suitable &struct file_operations for CMA based + * drivers, which can be assigned to &drm_driver.fops. Note that this structure + * cannot be shared between drivers, because it contains a reference to the + * current module using THIS_MODULE. + * + * Note that the declaration is already marked as static - if you need a + * non-static version of this you're probably doing it wrong and will break the + * THIS_MODULE reference by accident. + */ +#define DEFINE_DRM_GEM_CMA_FOPS(name) \ + static const struct file_operations name = {\ + .owner = THIS_MODULE,\ + .open = drm_open,\ + .release = drm_release,\ + .unlocked_ioctl = drm_ioctl,\ + .compat_ioctl = drm_compat_ioctl,\ + .poll = drm_poll,\ + .read = drm_read,\ + .llseek = noop_llseek,\ + .mmap = drm_gem_cma_mmap,\ + } + /* free GEM object */ void drm_gem_cma_free_object(struct drm_gem_object *gem_obj);