From 13d0add333afea7b2fef77473232b10dea3627dd Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Tue, 8 Jan 2019 19:28:25 +0200 Subject: drm/edid: Pass connector to AVI infoframe functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Make life easier for drivers by simply passing the connector to drm_hdmi_avi_infoframe_from_display_mode() and drm_hdmi_avi_infoframe_quant_range(). That way drivers don't need to worry about is_hdmi2_sink mess. v2: Make is_hdmi2_sink() return true for sil-sii8620 Adapt to omap/vc4 changes Cc: Alex Deucher Cc: "Christian König" Cc: "David (ChunMing) Zhou" Cc: Archit Taneja Cc: Andrzej Hajda Cc: Laurent Pinchart Cc: Inki Dae Cc: Joonyoung Shim Cc: Seung-Woo Kim Cc: Kyungmin Park Cc: Russell King Cc: CK Hu Cc: Philipp Zabel Cc: Rob Clark Cc: Ben Skeggs Cc: Tomi Valkeinen Cc: Sandy Huang Cc: "Heiko Stübner" Cc: Benjamin Gaignard Cc: Vincent Abriou Cc: Thierry Reding Cc: Eric Anholt Cc: Shawn Guo Cc: Ilia Mirkin Cc: amd-gfx@lists.freedesktop.org Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Cc: nouveau@lists.freedesktop.org Cc: linux-tegra@vger.kernel.org Signed-off-by: Ville Syrjälä Acked-by: Thierry Reding Acked-by: Russell King Reviewed-by: Laurent Pinchart Reviewed-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20190108172828.15184-1-ville.syrjala@linux.intel.com --- drivers/gpu/drm/amd/amdgpu/dce_v10_0.c | 2 +- drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 2 +- drivers/gpu/drm/amd/amdgpu/dce_v6_0.c | 3 ++- drivers/gpu/drm/amd/amdgpu/dce_v8_0.c | 2 +- 4 files changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu') diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c index 4cfecdce29a3..1f0426d2fc2a 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c @@ -1682,7 +1682,7 @@ static void dce_v10_0_afmt_setmode(struct drm_encoder *encoder, dce_v10_0_audio_write_sad_regs(encoder); dce_v10_0_audio_write_latency_fields(encoder, mode); - err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false); + err = drm_hdmi_avi_infoframe_from_display_mode(&frame, connector, mode); if (err < 0) { DRM_ERROR("failed to setup AVI infoframe: %zd\n", err); return; diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c index 7c868916d90f..2280b971d758 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c @@ -1724,7 +1724,7 @@ static void dce_v11_0_afmt_setmode(struct drm_encoder *encoder, dce_v11_0_audio_write_sad_regs(encoder); dce_v11_0_audio_write_latency_fields(encoder, mode); - err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false); + err = drm_hdmi_avi_infoframe_from_display_mode(&frame, connector, mode); if (err < 0) { DRM_ERROR("failed to setup AVI infoframe: %zd\n", err); return; diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c index 17eaaba36017..db443ec53d3a 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c @@ -1423,6 +1423,7 @@ static void dce_v6_0_audio_set_avi_infoframe(struct drm_encoder *encoder, struct amdgpu_device *adev = dev->dev_private; struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv; + struct drm_connector *connector = amdgpu_get_connector_for_encoder(encoder); struct hdmi_avi_infoframe frame; u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE]; uint8_t *payload = buffer + 3; @@ -1430,7 +1431,7 @@ static void dce_v6_0_audio_set_avi_infoframe(struct drm_encoder *encoder, ssize_t err; u32 tmp; - err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false); + err = drm_hdmi_avi_infoframe_from_display_mode(&frame, connector, mode); if (err < 0) { DRM_ERROR("failed to setup AVI infoframe: %zd\n", err); return; diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c index 8c0576978d36..13da915991dd 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c @@ -1616,7 +1616,7 @@ static void dce_v8_0_afmt_setmode(struct drm_encoder *encoder, dce_v8_0_audio_write_sad_regs(encoder); dce_v8_0_audio_write_latency_fields(encoder, mode); - err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false); + err = drm_hdmi_avi_infoframe_from_display_mode(&frame, connector, mode); if (err < 0) { DRM_ERROR("failed to setup AVI infoframe: %zd\n", err); return; -- cgit v1.2.3-70-g09d2 From c2d88e06bcb98540bb83fac874574eaa4f320363 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Mon, 17 Dec 2018 20:43:00 +0100 Subject: drm: Move the legacy kms disable_all helper to crtc helpers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It's not a core function, and the matching atomic functions are also not in the core. Plus the suspend/resume helper is also already there. Needs a tiny bit of open-coding, but less midlayer beats that I think. v2: Rebase onto ast (which gained a new user). Cc: Sam Bobroff Reviewed-by: Alex Deucher Reviewed-by: Sean Paul Signed-off-by: Daniel Vetter Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Sean Paul Cc: David Airlie Cc: Ben Skeggs Cc: Alex Deucher Cc: "Christian König" Cc: "David (ChunMing) Zhou" Cc: Rex Zhu Cc: Andrey Grodzovsky Cc: Huang Rui Cc: Shaoyun Liu Cc: Monk Liu Cc: nouveau@lists.freedesktop.org Cc: amd-gfx@lists.freedesktop.org Link: https://patchwork.freedesktop.org/patch/msgid/20181217194303.14397-4-daniel.vetter@ffwll.ch --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 +- drivers/gpu/drm/ast/ast_fb.c | 2 +- drivers/gpu/drm/drm_crtc.c | 31 -------------------------- drivers/gpu/drm/drm_crtc_helper.c | 35 ++++++++++++++++++++++++++++++ drivers/gpu/drm/nouveau/nouveau_display.c | 2 +- drivers/gpu/drm/radeon/radeon_display.c | 2 +- include/drm/drm_crtc.h | 2 -- include/drm/drm_crtc_helper.h | 1 + 8 files changed, 40 insertions(+), 37 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 8a078f4ae73d..28bccceaa363 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2708,7 +2708,7 @@ void amdgpu_device_fini(struct amdgpu_device *adev) amdgpu_irq_disable_all(adev); if (adev->mode_info.mode_config_initialized){ if (!amdgpu_device_has_dc_support(adev)) - drm_crtc_force_disable_all(adev->ddev); + drm_helper_force_disable_all(adev->ddev); else drm_atomic_helper_shutdown(adev->ddev); } diff --git a/drivers/gpu/drm/ast/ast_fb.c b/drivers/gpu/drm/ast/ast_fb.c index c2e41369adcf..75f867d00031 100644 --- a/drivers/gpu/drm/ast/ast_fb.c +++ b/drivers/gpu/drm/ast/ast_fb.c @@ -261,7 +261,7 @@ static void ast_fbdev_destroy(struct drm_device *dev, { struct ast_framebuffer *afb = &afbdev->afb; - drm_crtc_force_disable_all(dev); + drm_helper_force_disable_all(dev); drm_fb_helper_unregister_fbi(&afbdev->helper); if (afb->obj) { diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index f660819d406e..7dabbaf033a1 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -104,37 +104,6 @@ int drm_crtc_force_disable(struct drm_crtc *crtc) return drm_mode_set_config_internal(&set); } -/** - * drm_crtc_force_disable_all - Forcibly turn off all enabled CRTCs - * @dev: DRM device whose CRTCs to turn off - * - * Drivers may want to call this on unload to ensure that all displays are - * unlit and the GPU is in a consistent, low power state. Takes modeset locks. - * - * Note: This should only be used by non-atomic legacy drivers. For an atomic - * version look at drm_atomic_helper_shutdown(). - * - * Returns: - * Zero on success, error code on failure. - */ -int drm_crtc_force_disable_all(struct drm_device *dev) -{ - struct drm_crtc *crtc; - int ret = 0; - - drm_modeset_lock_all(dev); - drm_for_each_crtc(crtc, dev) - if (crtc->enabled) { - ret = drm_crtc_force_disable(crtc); - if (ret) - goto out; - } -out: - drm_modeset_unlock_all(dev); - return ret; -} -EXPORT_SYMBOL(drm_crtc_force_disable_all); - static unsigned int drm_num_crtcs(struct drm_device *dev) { unsigned int num = 0; diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index 3b5cf93233c1..91dc9b6386e7 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -994,3 +994,38 @@ void drm_helper_resume_force_mode(struct drm_device *dev) drm_modeset_unlock_all(dev); } EXPORT_SYMBOL(drm_helper_resume_force_mode); + +/** + * drm_helper_force_disable_all - Forcibly turn off all enabled CRTCs + * @dev: DRM device whose CRTCs to turn off + * + * Drivers may want to call this on unload to ensure that all displays are + * unlit and the GPU is in a consistent, low power state. Takes modeset locks. + * + * Note: This should only be used by non-atomic legacy drivers. For an atomic + * version look at drm_atomic_helper_shutdown(). + * + * Returns: + * Zero on success, error code on failure. + */ +int drm_helper_force_disable_all(struct drm_device *dev) +{ + struct drm_crtc *crtc; + int ret = 0; + + drm_modeset_lock_all(dev); + drm_for_each_crtc(crtc, dev) + if (crtc->enabled) { + struct drm_mode_set set = { + .crtc = crtc, + }; + + ret = drm_mode_set_config_internal(&set); + if (ret) + goto out; + } +out: + drm_modeset_unlock_all(dev); + return ret; +} +EXPORT_SYMBOL(drm_helper_force_disable_all); diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index f326ffd86766..5d273a655479 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -453,7 +453,7 @@ nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime) if (drm_drv_uses_atomic_modeset(dev)) drm_atomic_helper_shutdown(dev); else - drm_crtc_force_disable_all(dev); + drm_helper_force_disable_all(dev); } /* disable flip completion events */ diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 9d3ac8b981da..b190478ad087 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -1646,7 +1646,7 @@ void radeon_modeset_fini(struct radeon_device *rdev) if (rdev->mode_info.mode_config_initialized) { drm_kms_helper_poll_fini(rdev->ddev); radeon_hpd_fini(rdev); - drm_crtc_force_disable_all(rdev->ddev); + drm_helper_force_disable_all(rdev->ddev); radeon_fbdev_fini(rdev); radeon_afmt_fini(rdev); drm_mode_config_cleanup(rdev->ddev); diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index b45bec0b7a9c..85abd3fe9e83 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -1149,8 +1149,6 @@ static inline uint32_t drm_crtc_mask(const struct drm_crtc *crtc) return 1 << drm_crtc_index(crtc); } -int drm_crtc_force_disable_all(struct drm_device *dev); - int drm_mode_set_config_internal(struct drm_mode_set *set); struct drm_crtc *drm_crtc_from_index(struct drm_device *dev, int idx); diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h index d65f034843ce..0ee9a96b70da 100644 --- a/include/drm/drm_crtc_helper.h +++ b/include/drm/drm_crtc_helper.h @@ -56,6 +56,7 @@ bool drm_helper_encoder_in_use(struct drm_encoder *encoder); int drm_helper_connector_dpms(struct drm_connector *connector, int mode); void drm_helper_resume_force_mode(struct drm_device *dev); +int drm_helper_force_disable_all(struct drm_device *dev); /* drm_probe_helper.c */ int drm_helper_probe_single_connector_modes(struct drm_connector -- cgit v1.2.3-70-g09d2 From e9eafcb589213395232084a2378e2e90f67feb29 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sat, 12 Jan 2019 20:32:44 +0100 Subject: drm: move drm_can_sleep() to drm_util.h MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Move drm_can_sleep() out of drmP.h to allow users to get rid of the drmP.h include. There was no header file that was a good match for this helper function. So add this to drm_util with the relevant includes. Add include of drm_util.h to all users. v2: - Update comments to use kernel-doc style (Daniel) - Add FIXME to drm_can_sleep and add note that this function should not be used in new code (Daniel) v3: - Fix kernel-doc syntax (Daniel) - Plug drm_util.h into drm-internels.rst (Daniel) Signed-off-by: Sam Ravnborg Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Sean Paul Cc: David Airlie Cc: Daniel Vetter Cc: Alex Deucher Cc: "Christian König" Cc: "David (ChunMing) Zhou" Cc: Gerd Hoffmann Cc: Rob Clark Cc: Tomi Valkeinen Cc: Eric Anholt Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20190112193251.20450-2-sam@ravnborg.org --- Documentation/gpu/drm-internals.rst | 9 ++++++ drivers/gpu/drm/amd/amdgpu/atom.c | 2 ++ drivers/gpu/drm/ast/ast_fb.c | 2 ++ drivers/gpu/drm/cirrus/cirrus_fbdev.c | 1 + drivers/gpu/drm/drm_flip_work.c | 1 + drivers/gpu/drm/mgag200/mgag200_fb.c | 1 + drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c | 1 + drivers/gpu/drm/omapdrm/omap_fbdev.c | 1 + drivers/gpu/drm/qxl/qxl_cmd.c | 2 ++ drivers/gpu/drm/radeon/atom.c | 2 ++ drivers/gpu/drm/radeon/radeon_legacy_encoders.c | 1 + drivers/gpu/drm/vc4/vc4_drv.h | 1 + include/drm/drmP.h | 8 ----- include/drm/drm_util.h | 43 ++++++++++++++++++++++++- 14 files changed, 66 insertions(+), 9 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu') diff --git a/Documentation/gpu/drm-internals.rst b/Documentation/gpu/drm-internals.rst index 9090fabf3f7a..2caf21effd28 100644 --- a/Documentation/gpu/drm-internals.rst +++ b/Documentation/gpu/drm-internals.rst @@ -233,6 +233,15 @@ Printer .. kernel-doc:: drivers/gpu/drm/drm_print.c :export: +Utilities +--------- + +.. kernel-doc:: include/drm/drm_util.h + :doc: drm utils + +.. kernel-doc:: include/drm/drm_util.h + :internal: + Legacy Support Code =================== diff --git a/drivers/gpu/drm/amd/amdgpu/atom.c b/drivers/gpu/drm/amd/amdgpu/atom.c index e9934de1b9cf..dd30f4e61a8c 100644 --- a/drivers/gpu/drm/amd/amdgpu/atom.c +++ b/drivers/gpu/drm/amd/amdgpu/atom.c @@ -27,6 +27,8 @@ #include #include +#include + #define ATOM_DEBUG #include "atom.h" diff --git a/drivers/gpu/drm/ast/ast_fb.c b/drivers/gpu/drm/ast/ast_fb.c index 75f867d00031..2c9f8dd9733a 100644 --- a/drivers/gpu/drm/ast/ast_fb.c +++ b/drivers/gpu/drm/ast/ast_fb.c @@ -39,7 +39,9 @@ #include #include #include +#include #include + #include "ast_drv.h" static void ast_dirty_update(struct ast_fbdev *afbdev, diff --git a/drivers/gpu/drm/cirrus/cirrus_fbdev.c b/drivers/gpu/drm/cirrus/cirrus_fbdev.c index 3d0a3958d083..39df62acac69 100644 --- a/drivers/gpu/drm/cirrus/cirrus_fbdev.c +++ b/drivers/gpu/drm/cirrus/cirrus_fbdev.c @@ -10,6 +10,7 @@ */ #include #include +#include #include #include diff --git a/drivers/gpu/drm/drm_flip_work.c b/drivers/gpu/drm/drm_flip_work.c index 12dea16f22a8..3da3bf5af405 100644 --- a/drivers/gpu/drm/drm_flip_work.c +++ b/drivers/gpu/drm/drm_flip_work.c @@ -22,6 +22,7 @@ */ #include +#include #include /** diff --git a/drivers/gpu/drm/mgag200/mgag200_fb.c b/drivers/gpu/drm/mgag200/mgag200_fb.c index 30726c9fe28c..6893934b26c0 100644 --- a/drivers/gpu/drm/mgag200/mgag200_fb.c +++ b/drivers/gpu/drm/mgag200/mgag200_fb.c @@ -12,6 +12,7 @@ */ #include #include +#include #include #include diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c index 7cebcb2b3a37..6153514db04c 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c @@ -16,6 +16,7 @@ * this program. If not, see . */ +#include #include "mdp5_kms.h" #include "mdp5_smp.h" diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c b/drivers/gpu/drm/omapdrm/omap_fbdev.c index aee99194499f..851c59f07eb1 100644 --- a/drivers/gpu/drm/omapdrm/omap_fbdev.c +++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c @@ -16,6 +16,7 @@ */ #include +#include #include #include "omap_drv.h" diff --git a/drivers/gpu/drm/qxl/qxl_cmd.c b/drivers/gpu/drm/qxl/qxl_cmd.c index dffc5093ff16..2e100f644236 100644 --- a/drivers/gpu/drm/qxl/qxl_cmd.c +++ b/drivers/gpu/drm/qxl/qxl_cmd.c @@ -25,6 +25,8 @@ /* QXL cmd/ring handling */ +#include + #include "qxl_drv.h" #include "qxl_object.h" diff --git a/drivers/gpu/drm/radeon/atom.c b/drivers/gpu/drm/radeon/atom.c index e55cbeee7a53..ac98ad561870 100644 --- a/drivers/gpu/drm/radeon/atom.c +++ b/drivers/gpu/drm/radeon/atom.c @@ -27,6 +27,8 @@ #include #include +#include + #define ATOM_DEBUG #include "atom.h" diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index 222a1fa41d7c..7e3257e8fd56 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -24,6 +24,7 @@ * Alex Deucher */ #include +#include #include #include #include "radeon.h" diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index c24b078f0593..2c635f001c71 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -9,6 +9,7 @@ #include #include #include +#include #include #include #include diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 9e47c8dc6b87..bc4cb3732407 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -94,14 +94,6 @@ struct dma_buf_attachment; struct pci_dev; struct pci_controller; -/* returns true if currently okay to sleep */ -static inline bool drm_can_sleep(void) -{ - if (in_atomic() || in_dbg_master() || irqs_disabled()) - return false; - return true; -} - #if defined(CONFIG_DRM_DEBUG_SELFTEST_MODULE) #define EXPORT_SYMBOL_FOR_TESTS_ONLY(x) EXPORT_SYMBOL(x) #else diff --git a/include/drm/drm_util.h b/include/drm/drm_util.h index 88abdca89baa..f776a55e5508 100644 --- a/include/drm/drm_util.h +++ b/include/drm/drm_util.h @@ -26,7 +26,48 @@ #ifndef _DRM_UTIL_H_ #define _DRM_UTIL_H_ -/* helper for handling conditionals in various for_each macros */ +/** + * DOC: drm utils + * + * Macros and inline functions that does not naturally belong in other places + */ + +#include +#include +#include +#include + +/** + * for_each_if - helper for handling conditionals in various for_each macros + * @condition: The condition to check + * + * Typical use:: + * + * #define for_each_foo_bar(x, y) \' + * list_for_each_entry(x, y->list, head) \' + * for_each_if(x->something == SOMETHING) + * + * The for_each_if() macro makes the use of for_each_foo_bar() less error + * prone. + */ #define for_each_if(condition) if (!(condition)) {} else +/** + * drm_can_sleep - returns true if currently okay to sleep + * + * This function shall not be used in new code. + * The check for running in atomic context may not work - see linux/preempt.h. + * + * FIXME: All users of drm_can_sleep should be removed (see todo.rst) + * + * Returns: + * True if kgdb is active or we are in an atomic context or irqs are disabled + */ +static inline bool drm_can_sleep(void) +{ + if (in_atomic() || in_dbg_master() || irqs_disabled()) + return false; + return true; +} + #endif -- cgit v1.2.3-70-g09d2