From c1736b9008cb06a95231410145d0b9d2709ec86f Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Fri, 25 Jun 2021 15:50:33 +0200 Subject: drm: IRQ midlayer is now legacy Hide the DRM midlayer behind CONFIG_DRM_LEGACY, make functions use the prefix drm_legacy_, and move declarations to drm_legacy.h. In struct drm_device, move the fields irq and irq_enabled behind CONFIG_DRM_LEGACY. All callers have been updated. Signed-off-by: Thomas Zimmermann Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20210803090704.32152-15-tzimmermann@suse.de --- drivers/gpu/drm/drm_irq.c | 63 +++++---------------------------------- drivers/gpu/drm/drm_legacy_misc.c | 3 +- drivers/gpu/drm/drm_vblank.c | 8 ++--- drivers/gpu/drm/i810/i810_dma.c | 3 +- drivers/gpu/drm/mga/mga_dma.c | 2 +- drivers/gpu/drm/mga/mga_drv.h | 1 - drivers/gpu/drm/r128/r128_cce.c | 3 +- drivers/gpu/drm/via/via_mm.c | 3 +- 8 files changed, 16 insertions(+), 70 deletions(-) (limited to 'drivers/gpu/drm') diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 4a13d2fc5252..13e1d5c4ec82 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -60,46 +60,14 @@ #include #include #include -#include +#include #include #include #include "drm_internal.h" -/** - * DOC: irq helpers - * - * The DRM core provides very simple support helpers to enable IRQ handling on a - * device through the drm_irq_install() and drm_irq_uninstall() functions. This - * only supports devices with a single interrupt on the main device stored in - * &drm_device.dev and set as the device parameter in drm_dev_alloc(). - * - * These IRQ helpers are strictly optional. Since these helpers don't automatically - * clean up the requested interrupt like e.g. devm_request_irq() they're not really - * recommended. - */ - -/** - * drm_irq_install - install IRQ handler - * @dev: DRM device - * @irq: IRQ number to install the handler for - * - * Initializes the IRQ related data. Installs the handler, calling the driver - * &drm_driver.irq_preinstall and &drm_driver.irq_postinstall functions before - * and after the installation. - * - * This is the simplified helper interface provided for drivers with no special - * needs. - * - * @irq must match the interrupt number that would be passed to request_irq(), - * if called directly instead of using this helper function. - * - * &drm_driver.irq_handler is called to handle the registered interrupt. - * - * Returns: - * Zero on success or a negative error code on failure. - */ -int drm_irq_install(struct drm_device *dev, int irq) +#if IS_ENABLED(CONFIG_DRM_LEGACY) +static int drm_legacy_irq_install(struct drm_device *dev, int irq) { int ret; unsigned long sh_flags = 0; @@ -144,24 +112,8 @@ int drm_irq_install(struct drm_device *dev, int irq) return ret; } -EXPORT_SYMBOL(drm_irq_install); -/** - * drm_irq_uninstall - uninstall the IRQ handler - * @dev: DRM device - * - * Calls the driver's &drm_driver.irq_uninstall function and unregisters the IRQ - * handler. This should only be called by drivers which used drm_irq_install() - * to set up their interrupt handler. - * - * Note that for kernel modesetting drivers it is a bug if this function fails. - * The sanity checks are only to catch buggy user modesetting drivers which call - * the same function through an ioctl. - * - * Returns: - * Zero on success or a negative error code on failure. - */ -int drm_irq_uninstall(struct drm_device *dev) +int drm_legacy_irq_uninstall(struct drm_device *dev) { unsigned long irqflags; bool irq_enabled; @@ -207,9 +159,8 @@ int drm_irq_uninstall(struct drm_device *dev) return 0; } -EXPORT_SYMBOL(drm_irq_uninstall); +EXPORT_SYMBOL(drm_legacy_irq_uninstall); -#if IS_ENABLED(CONFIG_DRM_LEGACY) int drm_legacy_irq_control(struct drm_device *dev, void *data, struct drm_file *file_priv) { @@ -238,13 +189,13 @@ int drm_legacy_irq_control(struct drm_device *dev, void *data, ctl->irq != irq) return -EINVAL; mutex_lock(&dev->struct_mutex); - ret = drm_irq_install(dev, irq); + ret = drm_legacy_irq_install(dev, irq); mutex_unlock(&dev->struct_mutex); return ret; case DRM_UNINST_HANDLER: mutex_lock(&dev->struct_mutex); - ret = drm_irq_uninstall(dev); + ret = drm_legacy_irq_uninstall(dev); mutex_unlock(&dev->struct_mutex); return ret; diff --git a/drivers/gpu/drm/drm_legacy_misc.c b/drivers/gpu/drm/drm_legacy_misc.c index 83db43b7a25e..d4c5434062d7 100644 --- a/drivers/gpu/drm/drm_legacy_misc.c +++ b/drivers/gpu/drm/drm_legacy_misc.c @@ -35,7 +35,6 @@ #include #include -#include #include #include "drm_internal.h" @@ -78,7 +77,7 @@ int drm_legacy_setup(struct drm_device * dev) void drm_legacy_dev_reinit(struct drm_device *dev) { if (dev->irq_enabled) - drm_irq_uninstall(dev); + drm_legacy_irq_uninstall(dev); mutex_lock(&dev->struct_mutex); diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c index 977b6509bb4b..b701cda86d0c 100644 --- a/drivers/gpu/drm/drm_vblank.c +++ b/drivers/gpu/drm/drm_vblank.c @@ -1739,10 +1739,10 @@ static void drm_wait_vblank_reply(struct drm_device *dev, unsigned int pipe, static bool drm_wait_vblank_supported(struct drm_device *dev) { - if (IS_ENABLED(CONFIG_DRM_LEGACY)) { - if (unlikely(drm_core_check_feature(dev, DRIVER_LEGACY))) - return dev->irq_enabled; - } +#if IS_ENABLED(CONFIG_DRM_LEGACY) + if (unlikely(drm_core_check_feature(dev, DRIVER_LEGACY))) + return dev->irq_enabled; +#endif return drm_dev_has_vblank(dev); } diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c index d78c82af367c..9fb4dd63342f 100644 --- a/drivers/gpu/drm/i810/i810_dma.c +++ b/drivers/gpu/drm/i810/i810_dma.c @@ -38,7 +38,6 @@ #include #include #include -#include #include #include @@ -209,7 +208,7 @@ static int i810_dma_cleanup(struct drm_device *dev) * is freed, it's too late. */ if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled) - drm_irq_uninstall(dev); + drm_legacy_irq_uninstall(dev); if (dev->dev_private) { int i; diff --git a/drivers/gpu/drm/mga/mga_dma.c b/drivers/gpu/drm/mga/mga_dma.c index 403efc1f1a7c..331c2f0da57a 100644 --- a/drivers/gpu/drm/mga/mga_dma.c +++ b/drivers/gpu/drm/mga/mga_dma.c @@ -949,7 +949,7 @@ static int mga_do_cleanup_dma(struct drm_device *dev, int full_cleanup) * is freed, it's too late. */ if (dev->irq_enabled) - drm_irq_uninstall(dev); + drm_legacy_irq_uninstall(dev); if (dev->dev_private) { drm_mga_private_t *dev_priv = dev->dev_private; diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h index 84395d81ab9b..f61401c70b90 100644 --- a/drivers/gpu/drm/mga/mga_drv.h +++ b/drivers/gpu/drm/mga/mga_drv.h @@ -38,7 +38,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c index 2a2933c16308..c04d84a69dd2 100644 --- a/drivers/gpu/drm/r128/r128_cce.c +++ b/drivers/gpu/drm/r128/r128_cce.c @@ -39,7 +39,6 @@ #include #include -#include #include #include #include @@ -603,7 +602,7 @@ int r128_do_cleanup_cce(struct drm_device *dev) * is freed, it's too late. */ if (dev->irq_enabled) - drm_irq_uninstall(dev); + drm_legacy_irq_uninstall(dev); if (dev->dev_private) { drm_r128_private_t *dev_priv = dev->dev_private; diff --git a/drivers/gpu/drm/via/via_mm.c b/drivers/gpu/drm/via/via_mm.c index dae1bacd86c1..c9afa1a51f23 100644 --- a/drivers/gpu/drm/via/via_mm.c +++ b/drivers/gpu/drm/via/via_mm.c @@ -29,7 +29,6 @@ #include #include -#include #include #include "via_drv.h" @@ -86,7 +85,7 @@ int via_final_context(struct drm_device *dev, int context) /* Last context, perform cleanup */ if (list_is_singular(&dev->ctxlist)) { DRM_DEBUG("Last Context\n"); - drm_irq_uninstall(dev); + drm_legacy_irq_uninstall(dev); via_cleanup_futex(dev_priv); via_do_cleanup_map(dev); } -- cgit v1.2.3-59-g8ed1b