From 1ff494813bafa127ecba1160262ba39b2fdde7ba Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Tue, 29 Jan 2019 11:42:48 +0100 Subject: [PATCH] drm/irq: Ditch DRIVER_IRQ_SHARED This is only used by drm_irq_install(), which is an optional helper. For legacy pci devices this is required (due to interrupt sharing without msi/msi-x), and just making this the default exactly matches the behaviour of all existing drivers using the drm_irq_install() helpers. In case that ever becomes wrong drivers can roll their own irq handling, as many drivers already do (for other reasons like needing a threaded interrupt handler, or having an entire pile of different interrupt sources). v2: Rebase v3: Improve commit message (Emil) Cc: Sam Ravnborg Reviewed-by: Emil Velikov Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20190129104248.26607-3-daniel.vetter@ffwll.ch --- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 2 +- drivers/gpu/drm/drm_irq.c | 4 ++-- drivers/gpu/drm/gma500/psb_drv.c | 3 +-- drivers/gpu/drm/i915/i915_drv.c | 2 +- drivers/gpu/drm/mga/mga_drv.c | 2 +- drivers/gpu/drm/qxl/qxl_drv.c | 1 - drivers/gpu/drm/r128/r128_drv.c | 2 +- drivers/gpu/drm/radeon/radeon_drv.c | 4 +--- drivers/gpu/drm/via/via_drv.c | 3 +-- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 2 +- drivers/staging/vboxvideo/vbox_drv.c | 3 +-- include/drm/drm_drv.h | 22 ++++++---------------- 12 files changed, 17 insertions(+), 33 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 22502417c18c..a1bb3773087b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -1189,7 +1189,7 @@ amdgpu_get_crtc_scanout_position(struct drm_device *dev, unsigned int pipe, static struct drm_driver kms_driver = { .driver_features = DRIVER_USE_AGP | DRIVER_ATOMIC | - DRIVER_IRQ_SHARED | DRIVER_GEM | + DRIVER_GEM | DRIVER_PRIME | DRIVER_RENDER | DRIVER_MODESET | DRIVER_SYNCOBJ, .load = amdgpu_driver_load_kms, .open = amdgpu_driver_open_kms, diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index c5babb3e4752..9bd8908d5fd8 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -120,8 +120,8 @@ int drm_irq_install(struct drm_device *dev, int irq) if (dev->driver->irq_preinstall) dev->driver->irq_preinstall(dev); - /* Install handler */ - if (drm_core_check_feature(dev, DRIVER_IRQ_SHARED)) + /* PCI devices require shared interrupts. */ + if (dev->pdev) sh_flags = IRQF_SHARED; ret = request_irq(irq, dev->driver->irq_handler, diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c index 7cf14aeb1c28..eefaf4daff2b 100644 --- a/drivers/gpu/drm/gma500/psb_drv.c +++ b/drivers/gpu/drm/gma500/psb_drv.c @@ -468,8 +468,7 @@ static const struct file_operations psb_gem_fops = { }; static struct drm_driver driver = { - .driver_features = DRIVER_IRQ_SHARED | \ - DRIVER_MODESET | DRIVER_GEM, + .driver_features = DRIVER_MODESET | DRIVER_GEM, .load = psb_driver_load, .unload = psb_driver_unload, .lastclose = drm_fb_helper_lastclose, diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index b7d71083e320..aba502dadd66 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -3209,7 +3209,7 @@ static struct drm_driver driver = { * deal with them for Intel hardware. */ .driver_features = - DRIVER_IRQ_SHARED | DRIVER_GEM | DRIVER_PRIME | + DRIVER_GEM | DRIVER_PRIME | DRIVER_RENDER | DRIVER_MODESET | DRIVER_ATOMIC | DRIVER_SYNCOBJ, .release = i915_driver_release, .open = i915_driver_open, diff --git a/drivers/gpu/drm/mga/mga_drv.c b/drivers/gpu/drm/mga/mga_drv.c index 1aad27813c23..6e1d1054ad06 100644 --- a/drivers/gpu/drm/mga/mga_drv.c +++ b/drivers/gpu/drm/mga/mga_drv.c @@ -57,7 +57,7 @@ static const struct file_operations mga_driver_fops = { static struct drm_driver driver = { .driver_features = DRIVER_USE_AGP | DRIVER_PCI_DMA | DRIVER_LEGACY | - DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED, + DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ, .dev_priv_size = sizeof(drm_mga_buf_priv_t), .load = mga_driver_load, .unload = mga_driver_unload, diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c index 3b1487cfbb0e..11a76b6c9165 100644 --- a/drivers/gpu/drm/qxl/qxl_drv.c +++ b/drivers/gpu/drm/qxl/qxl_drv.c @@ -245,7 +245,6 @@ static struct pci_driver qxl_pci_driver = { static struct drm_driver qxl_driver = { .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | - DRIVER_IRQ_SHARED | DRIVER_ATOMIC, .dumb_create = qxl_mode_dumb_create, diff --git a/drivers/gpu/drm/r128/r128_drv.c b/drivers/gpu/drm/r128/r128_drv.c index 0d2b7e42b3a7..4b1a505ab353 100644 --- a/drivers/gpu/drm/r128/r128_drv.c +++ b/drivers/gpu/drm/r128/r128_drv.c @@ -57,7 +57,7 @@ static const struct file_operations r128_driver_fops = { static struct drm_driver driver = { .driver_features = DRIVER_USE_AGP | DRIVER_PCI_DMA | DRIVER_SG | DRIVER_LEGACY | - DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED, + DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ, .dev_priv_size = sizeof(drm_r128_buf_priv_t), .load = r128_driver_load, .preclose = r128_driver_preclose, diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 450a9d473c30..2e96c886392b 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -534,9 +534,7 @@ radeon_get_crtc_scanout_position(struct drm_device *dev, unsigned int pipe, static struct drm_driver kms_driver = { .driver_features = - DRIVER_USE_AGP | - DRIVER_IRQ_SHARED | DRIVER_GEM | - DRIVER_PRIME | DRIVER_RENDER, + DRIVER_USE_AGP | DRIVER_GEM | DRIVER_PRIME | DRIVER_RENDER, .load = radeon_driver_load_kms, .open = radeon_driver_open_kms, .postclose = radeon_driver_postclose_kms, diff --git a/drivers/gpu/drm/via/via_drv.c b/drivers/gpu/drm/via/via_drv.c index aaf766f7cca2..af6a12d3c058 100644 --- a/drivers/gpu/drm/via/via_drv.c +++ b/drivers/gpu/drm/via/via_drv.c @@ -70,8 +70,7 @@ static const struct file_operations via_driver_fops = { static struct drm_driver driver = { .driver_features = - DRIVER_USE_AGP | DRIVER_HAVE_IRQ | DRIVER_LEGACY | - DRIVER_IRQ_SHARED, + DRIVER_USE_AGP | DRIVER_HAVE_IRQ | DRIVER_LEGACY, .load = via_driver_load, .unload = via_driver_unload, .open = via_driver_open, diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index d159d0400013..4638f6791cda 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -1582,7 +1582,7 @@ static const struct file_operations vmwgfx_driver_fops = { }; static struct drm_driver driver = { - .driver_features = DRIVER_IRQ_SHARED | + .driver_features = DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER | DRIVER_ATOMIC, .load = vmw_driver_load, .unload = vmw_driver_unload, diff --git a/drivers/staging/vboxvideo/vbox_drv.c b/drivers/staging/vboxvideo/vbox_drv.c index 78cbcd68d4f3..b0d73d5fba5d 100644 --- a/drivers/staging/vboxvideo/vbox_drv.c +++ b/drivers/staging/vboxvideo/vbox_drv.c @@ -221,8 +221,7 @@ static void vbox_master_drop(struct drm_device *dev, struct drm_file *file_priv) static struct drm_driver driver = { .driver_features = - DRIVER_MODESET | DRIVER_GEM | DRIVER_IRQ_SHARED | - DRIVER_PRIME | DRIVER_ATOMIC, + DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_ATOMIC, .dev_priv_size = 0, .lastclose = drm_fb_helper_lastclose, diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h index 0760a1d7b6c2..ca46a45a9cce 100644 --- a/include/drm/drm_drv.h +++ b/include/drm/drm_drv.h @@ -100,20 +100,20 @@ enum drm_driver_feature { * Set up DRM AGP support, see drm_agp_init(), the DRM core will manage * AGP resources. New drivers don't need this. */ - DRIVER_USE_AGP = BIT(24), + DRIVER_USE_AGP = BIT(25), /** * @DRIVER_LEGACY: * * Denote a legacy driver using shadow attach. Do not use. */ - DRIVER_LEGACY = BIT(25), + DRIVER_LEGACY = BIT(26), /** * @DRIVER_PCI_DMA: * * Driver is capable of PCI DMA, mapping of PCI DMA buffers to userspace * will be enabled. Only for legacy drivers. Do not use. */ - DRIVER_PCI_DMA = BIT(26), + DRIVER_PCI_DMA = BIT(27), /** * @DRIVER_SG: * @@ -121,7 +121,7 @@ enum drm_driver_feature { * scatter/gather buffers will be enabled. Only for legacy drivers. Do * not use. */ - DRIVER_SG = BIT(27), + DRIVER_SG = BIT(28), /** * @DRIVER_HAVE_DMA: @@ -129,7 +129,7 @@ enum drm_driver_feature { * Driver supports DMA, the userspace DMA API will be supported. Only * for legacy drivers. Do not use. */ - DRIVER_HAVE_DMA = BIT(28), + DRIVER_HAVE_DMA = BIT(29), /** * @DRIVER_HAVE_IRQ: * @@ -139,17 +139,7 @@ enum drm_driver_feature { * drm_irq_uninstall() helper functions, or roll their own irq support * code by calling request_irq() directly. */ - DRIVER_HAVE_IRQ = BIT(29), - /** - * @DRIVER_IRQ_SHARED: - * - * Indicates to drm_irq_install() that a shared irq should be requested. - * - * FIXME: This should be an explicit argument for non-legacy drivers, or - * at least the default for PCI devices (which would cover all current - * users). - */ - DRIVER_IRQ_SHARED = BIT(30), + DRIVER_HAVE_IRQ = BIT(30), /** * @DRIVER_KMS_LEGACY_CONTEXT: * -- 2.30.2