diff options
Diffstat (limited to 'include')
26 files changed, 463 insertions, 103 deletions
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h index 06d8902a8097..33f982cd1a27 100644 --- a/include/drm/drm_atomic_helper.h +++ b/include/drm/drm_atomic_helper.h @@ -58,10 +58,9 @@ int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state, int max_scale, bool can_position, bool can_update_disabled); -int drm_atomic_helper_check_crtc_state(struct drm_crtc_state *crtc_state, - bool can_disable_primary_plane); int drm_atomic_helper_check_planes(struct drm_device *dev, struct drm_atomic_state *state); +int drm_atomic_helper_check_crtc_primary_plane(struct drm_crtc_state *crtc_state); int drm_atomic_helper_check(struct drm_device *dev, struct drm_atomic_state *state); void drm_atomic_helper_commit_tail(struct drm_atomic_state *state); diff --git a/include/drm/drm_atomic_state_helper.h b/include/drm/drm_atomic_state_helper.h index 3f8f1d627f7c..192766656b88 100644 --- a/include/drm/drm_atomic_state_helper.h +++ b/include/drm/drm_atomic_state_helper.h @@ -70,7 +70,7 @@ void __drm_atomic_helper_connector_state_reset(struct drm_connector_state *conn_ void __drm_atomic_helper_connector_reset(struct drm_connector *connector, struct drm_connector_state *conn_state); void drm_atomic_helper_connector_reset(struct drm_connector *connector); -void drm_atomic_helper_connector_tv_reset(struct drm_connector *connector); +void drm_atomic_helper_connector_tv_margins_reset(struct drm_connector *connector); void __drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector, struct drm_connector_state *state); diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 56aee949c6fa..565cf9d3c550 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -656,6 +656,12 @@ struct drm_display_info { * @mso_pixel_overlap: eDP MSO segment pixel overlap, 0-8 pixels. */ u8 mso_pixel_overlap; + + /** + * @max_dsc_bpp: Maximum DSC target bitrate, if it is set to 0 the + * monitor's default value is used instead. + */ + u32 max_dsc_bpp; }; int drm_display_info_set_bus_formats(struct drm_display_info *info, @@ -692,7 +698,8 @@ struct drm_connector_tv_margins { /** * struct drm_tv_connector_state - TV connector related states - * @subconnector: selected subconnector + * @select_subconnector: selected subconnector + * @subconnector: detected subconnector * @margins: TV margins * @mode: TV mode * @brightness: brightness in percent @@ -703,6 +710,7 @@ struct drm_connector_tv_margins { * @hue: hue in percent */ struct drm_tv_connector_state { + enum drm_mode_subconnector select_subconnector; enum drm_mode_subconnector subconnector; struct drm_connector_tv_margins margins; unsigned int mode; @@ -1211,6 +1219,13 @@ struct drm_cmdline_mode { bool bpp_specified; /** + * @pixel_clock: + * + * Pixel Clock in kHz. Optional. + */ + unsigned int pixel_clock; + + /** * @xres: * * Active resolution on the X axis, in pixels. @@ -1548,12 +1563,20 @@ struct drm_connector { struct drm_cmdline_mode cmdline_mode; /** @force: a DRM_FORCE_<foo> state for forced mode sets */ enum drm_connector_force force; + + /** + * @edid_override: Override EDID set via debugfs. + * + * Do not modify or access outside of the drm_edid_override_* family of + * functions. + */ + const struct drm_edid *edid_override; + /** - * @override_edid: has the EDID been overwritten through debugfs for - * testing? Do not modify outside of drm_edid_override_set() and - * drm_edid_override_reset(). + * @edid_override_mutex: Protect access to edid_override. */ - bool override_edid; + struct mutex edid_override_mutex; + /** @epoch_counter: used to detect any other changes in connector, besides status */ u64 epoch_counter; diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h index a6d520d5b6ca..1840db247f69 100644 --- a/include/drm/drm_crtc_helper.h +++ b/include/drm/drm_crtc_helper.h @@ -50,6 +50,8 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode, int x, int y, struct drm_framebuffer *old_fb); +int drm_crtc_helper_atomic_check(struct drm_crtc *crtc, + struct drm_atomic_state *state); bool drm_helper_crtc_in_use(struct drm_crtc *crtc); bool drm_helper_encoder_in_use(struct drm_encoder *encoder); diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h index f6159acb8856..700d3857e088 100644 --- a/include/drm/drm_drv.h +++ b/include/drm/drm_drv.h @@ -30,6 +30,8 @@ #include <linux/list.h> #include <linux/irqreturn.h> +#include <video/nomodeset.h> + #include <drm/drm_device.h> struct drm_file; @@ -602,6 +604,10 @@ static inline bool drm_drv_uses_atomic_modeset(struct drm_device *dev) int drm_dev_set_unique(struct drm_device *dev, const char *name); -extern bool drm_firmware_drivers_only(void); +/* TODO: Inline drm_firmware_drivers_only() in all its callers. */ +static inline bool drm_firmware_drivers_only(void) +{ + return video_firmware_drivers_only(); +} #endif diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index 1ed61e2b30a4..372963600f1d 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -97,10 +97,13 @@ struct detailed_data_string { #define DRM_EDID_RANGE_OFFSET_MIN_HFREQ (1 << 2) /* 1.4 */ #define DRM_EDID_RANGE_OFFSET_MAX_HFREQ (1 << 3) /* 1.4 */ -#define DRM_EDID_DEFAULT_GTF_SUPPORT_FLAG 0x00 -#define DRM_EDID_RANGE_LIMITS_ONLY_FLAG 0x01 -#define DRM_EDID_SECONDARY_GTF_SUPPORT_FLAG 0x02 -#define DRM_EDID_CVT_SUPPORT_FLAG 0x04 +#define DRM_EDID_DEFAULT_GTF_SUPPORT_FLAG 0x00 /* 1.3 */ +#define DRM_EDID_RANGE_LIMITS_ONLY_FLAG 0x01 /* 1.4 */ +#define DRM_EDID_SECONDARY_GTF_SUPPORT_FLAG 0x02 /* 1.3 */ +#define DRM_EDID_CVT_SUPPORT_FLAG 0x04 /* 1.4 */ + +#define DRM_EDID_CVT_FLAGS_STANDARD_BLANKING (1 << 3) +#define DRM_EDID_CVT_FLAGS_REDUCED_BLANKING (1 << 4) struct detailed_data_monitor_range { u8 min_vfreq; @@ -206,7 +209,8 @@ struct detailed_timing { #define DRM_EDID_DIGITAL_TYPE_DP (5 << 0) /* 1.4 */ #define DRM_EDID_DIGITAL_DFP_1_X (1 << 0) /* 1.3 */ -#define DRM_EDID_FEATURE_DEFAULT_GTF (1 << 0) +#define DRM_EDID_FEATURE_DEFAULT_GTF (1 << 0) /* 1.2 */ +#define DRM_EDID_FEATURE_CONTINUOUS_FREQ (1 << 0) /* 1.4 */ #define DRM_EDID_FEATURE_PREFERRED_TIMING (1 << 1) #define DRM_EDID_FEATURE_STANDARD_COLOR (1 << 2) /* If analog */ @@ -384,15 +388,8 @@ int drm_av_sync_delay(struct drm_connector *connector, const struct drm_display_mode *mode); #ifdef CONFIG_DRM_LOAD_EDID_FIRMWARE -struct edid *drm_load_edid_firmware(struct drm_connector *connector); int __drm_set_edid_firmware_path(const char *path); int __drm_get_edid_firmware_path(char *buf, size_t bufsize); -#else -static inline struct edid * -drm_load_edid_firmware(struct drm_connector *connector) -{ - return ERR_PTR(-ENOENT); -} #endif bool drm_edid_are_equal(const struct edid *edid1, const struct edid *edid2); @@ -573,7 +570,7 @@ struct edid *drm_get_edid_switcheroo(struct drm_connector *connector, struct i2c_adapter *adapter); struct edid *drm_edid_duplicate(const struct edid *edid); int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid); -int drm_add_override_edid_modes(struct drm_connector *connector); +int drm_edid_override_connector_update(struct drm_connector *connector); u8 drm_match_cea_mode(const struct drm_display_mode *to_match); bool drm_detect_hdmi_monitor(const struct edid *edid); @@ -602,6 +599,7 @@ drm_display_mode_from_cea_vic(struct drm_device *dev, const struct drm_edid *drm_edid_alloc(const void *edid, size_t size); const struct drm_edid *drm_edid_dup(const struct drm_edid *drm_edid); void drm_edid_free(const struct drm_edid *drm_edid); +bool drm_edid_valid(const struct drm_edid *drm_edid); const struct edid *drm_edid_raw(const struct drm_edid *drm_edid); const struct drm_edid *drm_edid_read(struct drm_connector *connector); const struct drm_edid *drm_edid_read_ddc(struct drm_connector *connector, diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h index fddd0d1af689..455f6c2b8117 100644 --- a/include/drm/drm_fb_helper.h +++ b/include/drm/drm_fb_helper.h @@ -30,13 +30,12 @@ #ifndef DRM_FB_HELPER_H #define DRM_FB_HELPER_H +struct drm_clip_rect; struct drm_fb_helper; -#include <drm/drm_client.h> -#include <drm/drm_crtc.h> -#include <drm/drm_device.h> #include <linux/fb.h> -#include <linux/kgdb.h> + +#include <drm/drm_client.h> enum mode_set_atomic { LEAVE_ATOMIC_MODE_SET, @@ -91,6 +90,20 @@ struct drm_fb_helper_funcs { */ int (*fb_probe)(struct drm_fb_helper *helper, struct drm_fb_helper_surface_size *sizes); + + /** + * @fb_dirty: + * + * Driver callback to update the framebuffer memory. If set, fbdev + * emulation will invoke this callback in regular intervals after + * the framebuffer has been written. + * + * This callback is optional. + * + * Returns: + * 0 on success, or an error code otherwise. + */ + int (*fb_dirty)(struct drm_fb_helper *helper, struct drm_clip_rect *clip); }; /** @@ -98,12 +111,11 @@ struct drm_fb_helper_funcs { * @fb: Scanout framebuffer object * @dev: DRM device * @funcs: driver callbacks for fb helper - * @fbdev: emulated fbdev device info struct + * @info: emulated fbdev device info struct * @pseudo_palette: fake palette of 16 colors * @damage_clip: clip rectangle used with deferred_io to accumulate damage to * the screen buffer * @damage_lock: spinlock protecting @damage_clip - * @damage_work: worker used to flush the framebuffer * @resume_work: worker used during resume if the console lock is already taken * * This is the main structure used by the fbdev helpers. Drivers supporting @@ -129,11 +141,10 @@ struct drm_fb_helper { struct drm_framebuffer *fb; struct drm_device *dev; const struct drm_fb_helper_funcs *funcs; - struct fb_info *fbdev; + struct fb_info *info; u32 pseudo_palette[17]; struct drm_clip_rect damage_clip; spinlock_t damage_lock; - struct work_struct damage_work; struct work_struct resume_work; /** @@ -186,6 +197,15 @@ struct drm_fb_helper { * See also: @deferred_setup */ int preferred_bpp; + + /** + * @hint_leak_smem_start: + * + * Hint to the fbdev emulation to store the framebuffer's physical + * address in struct &fb_info.fix.smem_start. If the hint is unset, + * the smem_start field should always be cleared to zero. + */ + bool hint_leak_smem_start; }; static inline struct drm_fb_helper * @@ -224,8 +244,8 @@ int drm_fb_helper_check_var(struct fb_var_screeninfo *var, int drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper); -struct fb_info *drm_fb_helper_alloc_fbi(struct drm_fb_helper *fb_helper); -void drm_fb_helper_unregister_fbi(struct drm_fb_helper *fb_helper); +struct fb_info *drm_fb_helper_alloc_info(struct drm_fb_helper *fb_helper); +void drm_fb_helper_unregister_info(struct drm_fb_helper *fb_helper); void drm_fb_helper_fill_info(struct fb_info *info, struct drm_fb_helper *fb_helper, struct drm_fb_helper_surface_size *sizes); @@ -244,6 +264,11 @@ void drm_fb_helper_sys_copyarea(struct fb_info *info, void drm_fb_helper_sys_imageblit(struct fb_info *info, const struct fb_image *image); +ssize_t drm_fb_helper_cfb_read(struct fb_info *info, char __user *buf, + size_t count, loff_t *ppos); +ssize_t drm_fb_helper_cfb_write(struct fb_info *info, const char __user *buf, + size_t count, loff_t *ppos); + void drm_fb_helper_cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect); void drm_fb_helper_cfb_copyarea(struct fb_info *info, @@ -267,9 +292,6 @@ int drm_fb_helper_debug_leave(struct fb_info *info); void drm_fb_helper_lastclose(struct drm_device *dev); void drm_fb_helper_output_poll_changed(struct drm_device *dev); - -void drm_fbdev_generic_setup(struct drm_device *dev, - unsigned int preferred_bpp); #else static inline void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper, @@ -322,12 +344,12 @@ drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper) } static inline struct fb_info * -drm_fb_helper_alloc_fbi(struct drm_fb_helper *fb_helper) +drm_fb_helper_alloc_info(struct drm_fb_helper *fb_helper) { return NULL; } -static inline void drm_fb_helper_unregister_fbi(struct drm_fb_helper *fb_helper) +static inline void drm_fb_helper_unregister_info(struct drm_fb_helper *fb_helper) { } @@ -389,6 +411,18 @@ static inline void drm_fb_helper_sys_imageblit(struct fb_info *info, { } +static inline ssize_t drm_fb_helper_cfb_read(struct fb_info *info, char __user *buf, + size_t count, loff_t *ppos) +{ + return -ENODEV; +} + +static inline ssize_t drm_fb_helper_cfb_write(struct fb_info *info, const char __user *buf, + size_t count, loff_t *ppos) +{ + return -ENODEV; +} + static inline void drm_fb_helper_cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) { @@ -442,12 +476,6 @@ static inline void drm_fb_helper_lastclose(struct drm_device *dev) static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev) { } - -static inline void -drm_fbdev_generic_setup(struct drm_device *dev, unsigned int preferred_bpp) -{ -} - #endif #endif diff --git a/include/drm/drm_fbdev_generic.h b/include/drm/drm_fbdev_generic.h new file mode 100644 index 000000000000..75799342098d --- /dev/null +++ b/include/drm/drm_fbdev_generic.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: MIT */ + +#ifndef DRM_FBDEV_GENERIC_H +#define DRM_FBDEV_GENERIC_H + +struct drm_device; + +#ifdef CONFIG_DRM_FBDEV_EMULATION +void drm_fbdev_generic_setup(struct drm_device *dev, unsigned int preferred_bpp); +#else +static inline void drm_fbdev_generic_setup(struct drm_device *dev, unsigned int preferred_bpp) +{ } +#endif + +#endif diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h index bd42f25e449c..a17c2f903f81 100644 --- a/include/drm/drm_gem.h +++ b/include/drm/drm_gem.h @@ -457,6 +457,9 @@ struct page **drm_gem_get_pages(struct drm_gem_object *obj); void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages, bool dirty, bool accessed); +int drm_gem_vmap_unlocked(struct drm_gem_object *obj, struct iosys_map *map); +void drm_gem_vunmap_unlocked(struct drm_gem_object *obj, struct iosys_map *map); + int drm_gem_objects_lookup(struct drm_file *filp, void __user *bo_handles, int count, struct drm_gem_object ***objs_out); struct drm_gem_object *drm_gem_object_lookup(struct drm_file *filp, u32 handle); diff --git a/include/drm/drm_gem_atomic_helper.h b/include/drm/drm_gem_atomic_helper.h index 6e3319e9001a..6970ccb787e2 100644 --- a/include/drm/drm_gem_atomic_helper.h +++ b/include/drm/drm_gem_atomic_helper.h @@ -103,8 +103,8 @@ void drm_gem_destroy_shadow_plane_state(struct drm_plane *plane, .atomic_duplicate_state = drm_gem_duplicate_shadow_plane_state, \ .atomic_destroy_state = drm_gem_destroy_shadow_plane_state -int drm_gem_prepare_shadow_fb(struct drm_plane *plane, struct drm_plane_state *plane_state); -void drm_gem_cleanup_shadow_fb(struct drm_plane *plane, struct drm_plane_state *plane_state); +int drm_gem_begin_shadow_fb_access(struct drm_plane *plane, struct drm_plane_state *plane_state); +void drm_gem_end_shadow_fb_access(struct drm_plane *plane, struct drm_plane_state *plane_state); /** * DRM_GEM_SHADOW_PLANE_HELPER_FUNCS - @@ -115,13 +115,13 @@ void drm_gem_cleanup_shadow_fb(struct drm_plane *plane, struct drm_plane_state * * functions. */ #define DRM_GEM_SHADOW_PLANE_HELPER_FUNCS \ - .prepare_fb = drm_gem_prepare_shadow_fb, \ - .cleanup_fb = drm_gem_cleanup_shadow_fb + .begin_fb_access = drm_gem_begin_shadow_fb_access, \ + .end_fb_access = drm_gem_end_shadow_fb_access -int drm_gem_simple_kms_prepare_shadow_fb(struct drm_simple_display_pipe *pipe, - struct drm_plane_state *plane_state); -void drm_gem_simple_kms_cleanup_shadow_fb(struct drm_simple_display_pipe *pipe, - struct drm_plane_state *plane_state); +int drm_gem_simple_kms_begin_shadow_fb_access(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *plane_state); +void drm_gem_simple_kms_end_shadow_fb_access(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *plane_state); void drm_gem_simple_kms_reset_shadow_plane(struct drm_simple_display_pipe *pipe); struct drm_plane_state * drm_gem_simple_kms_duplicate_shadow_plane_state(struct drm_simple_display_pipe *pipe); @@ -137,8 +137,8 @@ void drm_gem_simple_kms_destroy_shadow_plane_state(struct drm_simple_display_pip * functions. */ #define DRM_GEM_SIMPLE_DISPLAY_PIPE_SHADOW_PLANE_FUNCS \ - .prepare_fb = drm_gem_simple_kms_prepare_shadow_fb, \ - .cleanup_fb = drm_gem_simple_kms_cleanup_shadow_fb, \ + .begin_fb_access = drm_gem_simple_kms_begin_shadow_fb_access, \ + .end_fb_access = drm_gem_simple_kms_end_shadow_fb_access, \ .reset_plane = drm_gem_simple_kms_reset_shadow_plane, \ .duplicate_plane_state = drm_gem_simple_kms_duplicate_shadow_plane_state, \ .destroy_plane_state = drm_gem_simple_kms_destroy_shadow_plane_state diff --git a/include/drm/drm_mode_config.h b/include/drm/drm_mode_config.h index 6b5e01295348..5362702fffe1 100644 --- a/include/drm/drm_mode_config.h +++ b/include/drm/drm_mode_config.h @@ -345,7 +345,6 @@ struct drm_mode_config_funcs { * @max_width: maximum fb pixel width on this device * @max_height: maximum fb pixel height on this device * @funcs: core driver provided mode setting functions - * @fb_base: base address of the framebuffer * @poll_enabled: track polling support for this device * @poll_running: track polling status for this device * @delayed_event: track delayed poll uevent deliver for this device @@ -542,7 +541,6 @@ struct drm_mode_config { int min_width, min_height; int max_width, max_height; const struct drm_mode_config_funcs *funcs; - resource_size_t fb_base; /* output poll support */ bool poll_enabled; diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h index fafa70ac1337..d9f2254a039a 100644 --- a/include/drm/drm_modeset_helper_vtables.h +++ b/include/drm/drm_modeset_helper_vtables.h @@ -1184,11 +1184,20 @@ struct drm_plane_helper_funcs { * can call drm_gem_plane_helper_prepare_fb() from their @prepare_fb * hook. * + * The resources acquired in @prepare_fb persist after the end of + * the atomic commit. Resources that can be release at the commit's end + * should be acquired in @begin_fb_access and released in @end_fb_access. + * For example, a GEM buffer's pin operation belongs into @prepare_fb to + * keep the buffer pinned after the commit. But a vmap operation for + * shadow-plane helpers belongs into @begin_fb_access, so that atomic + * helpers remove the mapping at the end of the commit. + * * The helpers will call @cleanup_fb with matching arguments for every * successful call to this hook. * * This callback is used by the atomic modeset helpers and by the - * transitional plane helpers, but it is optional. + * transitional plane helpers, but it is optional. See @begin_fb_access + * for preparing per-commit resources. * * RETURNS: * @@ -1212,6 +1221,36 @@ struct drm_plane_helper_funcs { struct drm_plane_state *old_state); /** + * @begin_fb_access: + * + * This hook prepares the plane for access during an atomic commit. + * In contrast to @prepare_fb, resources acquired in @begin_fb_access, + * are released at the end of the atomic commit in @end_fb_access. + * + * For example, with shadow-plane helpers, the GEM buffer's vmap + * operation belongs into @begin_fb_access, so that the buffer's + * memory will be unmapped at the end of the commit in @end_fb_access. + * But a GEM buffer's pin operation belongs into @prepare_fb + * to keep the buffer pinned after the commit. + * + * The callback is used by the atomic modeset helpers, but it is optional. + * See @end_fb_cleanup for undoing the effects of @begin_fb_access and + * @prepare_fb for acquiring resources until the next pageflip. + * + * Returns: + * 0 on success, or a negative errno code otherwise. + */ + int (*begin_fb_access)(struct drm_plane *plane, struct drm_plane_state *new_plane_state); + + /** + * @end_fb_access: + * + * This hook cleans up resources allocated by @begin_fb_access. It it called + * at the end of a commit for the new plane state. + */ + void (*end_fb_access)(struct drm_plane *plane, struct drm_plane_state *new_plane_state); + + /** * @atomic_check: * * Drivers should check plane specific constraints in this hook. diff --git a/include/drm/drm_simple_kms_helper.h b/include/drm/drm_simple_kms_helper.h index 0b3647e614dd..2298fe3af4cd 100644 --- a/include/drm/drm_simple_kms_helper.h +++ b/include/drm/drm_simple_kms_helper.h @@ -136,6 +136,26 @@ struct drm_simple_display_pipe_funcs { struct drm_plane_state *plane_state); /** + * @begin_fb_access: + * + * Optional, called by &drm_plane_helper_funcs.begin_fb_access. Please read + * the documentation for the &drm_plane_helper_funcs.begin_fb_access hook for + * more details. + */ + int (*begin_fb_access)(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *new_plane_state); + + /** + * @end_fb_access: + * + * Optional, called by &drm_plane_helper_funcs.end_fb_access. Please read + * the documentation for the &drm_plane_helper_funcs.end_fb_access hook for + * more details. + */ + void (*end_fb_access)(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *plane_state); + + /** * @enable_vblank: * * Optional, called by &drm_crtc_funcs.enable_vblank. Please read diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h index 2ae4fd62e01c..ca857ec9e7eb 100644 --- a/include/drm/gpu_scheduler.h +++ b/include/drm/gpu_scheduler.h @@ -41,6 +41,8 @@ */ #define DRM_SCHED_FENCE_DONT_PIPELINE DMA_FENCE_FLAG_USER_BITS +enum dma_resv_usage; +struct dma_resv; struct drm_gem_object; struct drm_gpu_scheduler; @@ -59,6 +61,12 @@ enum drm_sched_priority { DRM_SCHED_PRIORITY_UNSET = -2 }; +/* Used to chose between FIFO and RR jobs scheduling */ +extern int drm_sched_policy; + +#define DRM_SCHED_POLICY_RR 0 +#define DRM_SCHED_POLICY_FIFO 1 + /** * struct drm_sched_entity - A wrapper around a job queue (typically * attached to the DRM file_priv). @@ -205,6 +213,21 @@ struct drm_sched_entity { * drm_sched_entity_fini(). */ struct completion entity_idle; + + /** + * @oldest_job_waiting: + * + * Marks earliest job waiting in SW queue + */ + ktime_t oldest_job_waiting; + + /** + * @rb_tree_node: + * + * The node used to insert this entity into time based priority queue + */ + struct rb_node rb_tree_node; + }; /** @@ -214,6 +237,7 @@ struct drm_sched_entity { * @sched: the scheduler to which this rq belongs to. * @entities: list of the entities to be scheduled. * @current_entity: the entity which is to be scheduled. + * @rb_tree_root: root of time based priory queue of entities for FIFO scheduling * * Run queue is a set of entities scheduling command submissions for * one specific ring. It implements the scheduling policy that selects @@ -224,6 +248,7 @@ struct drm_sched_rq { struct drm_gpu_scheduler *sched; struct list_head entities; struct drm_sched_entity *current_entity; + struct rb_root_cached rb_tree_root; }; /** @@ -304,7 +329,7 @@ struct drm_sched_job { */ union { struct dma_fence_cb finish_cb; - struct work_struct work; + struct work_struct work; }; uint64_t id; @@ -323,6 +348,13 @@ struct drm_sched_job { /** @last_dependency: tracks @dependencies as they signal */ unsigned long last_dependency; + + /** + * @submit_ts: + * + * When the job was pushed into the entity queue. + */ + ktime_t submit_ts; }; static inline bool drm_sched_invalidate_job(struct drm_sched_job *s_job, @@ -345,18 +377,17 @@ enum drm_gpu_sched_stat { */ struct drm_sched_backend_ops { /** - * @dependency: + * @prepare_job: * * Called when the scheduler is considering scheduling this job next, to * get another struct dma_fence for this job to block on. Once it * returns NULL, run_job() may be called. * - * If a driver exclusively uses drm_sched_job_add_dependency() and - * drm_sched_job_add_implicit_dependencies() this can be ommitted and - * left as NULL. + * Can be NULL if no additional preparation to the dependencies are + * necessary. Skipped when jobs are killed instead of run. */ - struct dma_fence *(*dependency)(struct drm_sched_job *sched_job, - struct drm_sched_entity *s_entity); + struct dma_fence *(*prepare_job)(struct drm_sched_job *sched_job, + struct drm_sched_entity *s_entity); /** * @run_job: Called to execute the job once all of the dependencies @@ -484,6 +515,9 @@ int drm_sched_job_init(struct drm_sched_job *job, void drm_sched_job_arm(struct drm_sched_job *job); int drm_sched_job_add_dependency(struct drm_sched_job *job, struct dma_fence *fence); +int drm_sched_job_add_resv_dependencies(struct drm_sched_job *job, + struct dma_resv *resv, + enum dma_resv_usage usage); int drm_sched_job_add_implicit_dependencies(struct drm_sched_job *job, struct drm_gem_object *obj, bool write); @@ -498,7 +532,6 @@ void drm_sched_wakeup(struct drm_gpu_scheduler *sched); void drm_sched_stop(struct drm_gpu_scheduler *sched, struct drm_sched_job *bad); void drm_sched_start(struct drm_gpu_scheduler *sched, bool full_recovery); void drm_sched_resubmit_jobs(struct drm_gpu_scheduler *sched); -void drm_sched_resubmit_jobs_ext(struct drm_gpu_scheduler *sched, int max); void drm_sched_increase_karma(struct drm_sched_job *bad); void drm_sched_reset_karma(struct drm_sched_job *bad); void drm_sched_increase_karma_ext(struct drm_sched_job *bad, int type); @@ -512,6 +545,8 @@ void drm_sched_rq_add_entity(struct drm_sched_rq *rq, void drm_sched_rq_remove_entity(struct drm_sched_rq *rq, struct drm_sched_entity *entity); +void drm_sched_rq_update_fifo(struct drm_sched_entity *entity, ktime_t ts); + int drm_sched_entity_init(struct drm_sched_entity *entity, enum drm_sched_priority priority, struct drm_gpu_scheduler **sched_list, diff --git a/include/drm/i915_pxp_tee_interface.h b/include/drm/i915_pxp_tee_interface.h index af593ec64469..a702b6ec17f7 100644 --- a/include/drm/i915_pxp_tee_interface.h +++ b/include/drm/i915_pxp_tee_interface.h @@ -8,6 +8,7 @@ #include <linux/mutex.h> #include <linux/device.h> +struct scatterlist; /** * struct i915_pxp_component_ops - ops for PXP services. @@ -23,6 +24,10 @@ struct i915_pxp_component_ops { int (*send)(struct device *dev, const void *message, size_t size); int (*recv)(struct device *dev, void *buffer, size_t size); + ssize_t (*gsc_command)(struct device *dev, u8 client_id, u32 fence_id, + struct scatterlist *sg_in, size_t total_in_len, + struct scatterlist *sg_out); + }; /** diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h index 5afc6d664fde..78a226eba953 100644 --- a/include/drm/ttm/ttm_resource.h +++ b/include/drm/ttm/ttm_resource.h @@ -197,7 +197,7 @@ struct ttm_bus_placement { * struct ttm_resource * * @start: Start of the allocation. - * @num_pages: Actual size of resource in pages. + * @size: Actual size of resource in bytes. * @mem_type: Resource type of the allocation. * @placement: Placement flags. * @bus: Placement on io bus accessible to the CPU @@ -208,7 +208,7 @@ struct ttm_bus_placement { */ struct ttm_resource { unsigned long start; - unsigned long num_pages; + size_t size; uint32_t mem_type; uint32_t placement; struct ttm_bus_placement bus; diff --git a/include/drm/ttm/ttm_tt.h b/include/drm/ttm/ttm_tt.h index 17a0310e8aaa..b7d3f3843f1e 100644 --- a/include/drm/ttm/ttm_tt.h +++ b/include/drm/ttm/ttm_tt.h @@ -88,7 +88,7 @@ struct ttm_tt { #define TTM_TT_FLAG_EXTERNAL (1 << 2) #define TTM_TT_FLAG_EXTERNAL_MAPPABLE (1 << 3) -#define TTM_TT_FLAG_PRIV_POPULATED (1 << 31) +#define TTM_TT_FLAG_PRIV_POPULATED (1U << 31) uint32_t page_flags; /** @num_pages: Number of pages in the page array. */ uint32_t num_pages; diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h index 71731796c8c3..6fa8d4e29719 100644 --- a/include/linux/dma-buf.h +++ b/include/linux/dma-buf.h @@ -327,15 +327,6 @@ struct dma_buf { const struct dma_buf_ops *ops; /** - * @lock: - * - * Used internally to serialize list manipulation, attach/detach and - * vmap/unmap. Note that in many cases this is superseeded by - * dma_resv_lock() on @resv. - */ - struct mutex lock; - - /** * @vmapping_counter: * * Used internally to refcnt the vmaps returned by dma_buf_vmap(). @@ -627,9 +618,17 @@ int dma_buf_begin_cpu_access(struct dma_buf *dma_buf, enum dma_data_direction dir); int dma_buf_end_cpu_access(struct dma_buf *dma_buf, enum dma_data_direction dir); +struct sg_table * +dma_buf_map_attachment_unlocked(struct dma_buf_attachment *attach, + enum dma_data_direction direction); +void dma_buf_unmap_attachment_unlocked(struct dma_buf_attachment *attach, + struct sg_table *sg_table, + enum dma_data_direction direction); int dma_buf_mmap(struct dma_buf *, struct vm_area_struct *, unsigned long); int dma_buf_vmap(struct dma_buf *dmabuf, struct iosys_map *map); void dma_buf_vunmap(struct dma_buf *dmabuf, struct iosys_map *map); +int dma_buf_vmap_unlocked(struct dma_buf *dmabuf, struct iosys_map *map); +void dma_buf_vunmap_unlocked(struct dma_buf *dmabuf, struct iosys_map *map); #endif /* __DMA_BUF_H__ */ diff --git a/include/linux/fb.h b/include/linux/fb.h index bcb8658f5b64..3a822e4357b1 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -663,6 +663,7 @@ extern void fb_deferred_io_open(struct fb_info *info, struct inode *inode, struct file *file); extern void fb_deferred_io_cleanup(struct fb_info *info); +extern void fb_deferred_io_schedule_flush(struct fb_info *info); extern int fb_deferred_io_fsync(struct file *file, loff_t start, loff_t end, int datasync); @@ -803,6 +804,15 @@ extern int fb_find_mode(struct fb_var_screeninfo *var, const struct fb_videomode *default_mode, unsigned int default_bpp); +#if defined(CONFIG_VIDEO_NOMODESET) +bool fb_modesetting_disabled(const char *drvname); +#else +bool fb_modesetting_disabled(const char *drvname) +{ + return false; +} +#endif + /* Convenience logging macros */ #define fb_err(fb_info, fmt, ...) \ pr_err("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__) diff --git a/include/linux/mei_cl_bus.h b/include/linux/mei_cl_bus.h index df1fab44ea5c..fd6e0620658d 100644 --- a/include/linux/mei_cl_bus.h +++ b/include/linux/mei_cl_bus.h @@ -11,6 +11,7 @@ struct mei_cl_device; struct mei_device; +struct scatterlist; typedef void (*mei_cldev_cb_t)(struct mei_cl_device *cldev); @@ -116,6 +117,11 @@ void mei_cldev_set_drvdata(struct mei_cl_device *cldev, void *data); int mei_cldev_enable(struct mei_cl_device *cldev); int mei_cldev_disable(struct mei_cl_device *cldev); bool mei_cldev_enabled(const struct mei_cl_device *cldev); +ssize_t mei_cldev_send_gsc_command(struct mei_cl_device *cldev, + u8 client_id, u32 fence_id, + struct scatterlist *sg_in, + size_t total_in_len, + struct scatterlist *sg_out); void *mei_cldev_dma_map(struct mei_cl_device *cldev, u8 buffer_id, size_t size); int mei_cldev_dma_unmap(struct mei_cl_device *cldev); diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h index 811ea668c4a1..ab955591cb72 100644 --- a/include/soc/bcm2835/raspberrypi-firmware.h +++ b/include/soc/bcm2835/raspberrypi-firmware.h @@ -136,12 +136,52 @@ enum rpi_firmware_property_tag { RPI_FIRMWARE_GET_DMA_CHANNELS = 0x00060001, }; +enum rpi_firmware_clk_id { + RPI_FIRMWARE_EMMC_CLK_ID = 1, + RPI_FIRMWARE_UART_CLK_ID, + RPI_FIRMWARE_ARM_CLK_ID, + RPI_FIRMWARE_CORE_CLK_ID, + RPI_FIRMWARE_V3D_CLK_ID, + RPI_FIRMWARE_H264_CLK_ID, + RPI_FIRMWARE_ISP_CLK_ID, + RPI_FIRMWARE_SDRAM_CLK_ID, + RPI_FIRMWARE_PIXEL_CLK_ID, + RPI_FIRMWARE_PWM_CLK_ID, + RPI_FIRMWARE_HEVC_CLK_ID, + RPI_FIRMWARE_EMMC2_CLK_ID, + RPI_FIRMWARE_M2MC_CLK_ID, + RPI_FIRMWARE_PIXEL_BVB_CLK_ID, + RPI_FIRMWARE_VEC_CLK_ID, + RPI_FIRMWARE_NUM_CLK_ID, +}; + +/** + * struct rpi_firmware_clk_rate_request - Firmware Request for a rate + * @id: ID of the clock being queried + * @rate: Rate in Hertz. Set by the firmware. + * + * Used by @RPI_FIRMWARE_GET_CLOCK_RATE, @RPI_FIRMWARE_GET_CLOCK_MEASURED, + * @RPI_FIRMWARE_GET_MAX_CLOCK_RATE and @RPI_FIRMWARE_GET_MIN_CLOCK_RATE. + */ +struct rpi_firmware_clk_rate_request { + __le32 id; + __le32 rate; +} __packed; + +#define RPI_FIRMWARE_CLK_RATE_REQUEST(_id) \ + { \ + .id = _id, \ + } + #if IS_ENABLED(CONFIG_RASPBERRYPI_FIRMWARE) int rpi_firmware_property(struct rpi_firmware *fw, u32 tag, void *data, size_t len); int rpi_firmware_property_list(struct rpi_firmware *fw, void *data, size_t tag_size); void rpi_firmware_put(struct rpi_firmware *fw); +unsigned int rpi_firmware_clk_get_max_rate(struct rpi_firmware *fw, + unsigned int id); +struct device_node *rpi_firmware_find_node(void); struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node); struct rpi_firmware *devm_rpi_firmware_get(struct device *dev, struct device_node *firmware_node); @@ -159,6 +199,18 @@ static inline int rpi_firmware_property_list(struct rpi_firmware *fw, } static inline void rpi_firmware_put(struct rpi_firmware *fw) { } + +static inline unsigned int rpi_firmware_clk_get_max_rate(struct rpi_firmware *fw, + unsigned int id) +{ + return UINT_MAX; +} + +static inline struct device_node *rpi_firmware_find_node(void) +{ + return NULL; +} + static inline struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node) { return NULL; diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index 0d93ec132ebb..4038abe8505a 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -144,6 +144,20 @@ extern "C" { * content. */ #define AMDGPU_GEM_CREATE_DISCARDABLE (1 << 12) +/* Flag that BO is shared coherently between multiple devices or CPU threads. + * May depend on GPU instructions to flush caches explicitly + * + * This influences the choice of MTYPE in the PTEs on GFXv9 and later GPUs and + * may override the MTYPE selected in AMDGPU_VA_OP_MAP. + */ +#define AMDGPU_GEM_CREATE_COHERENT (1 << 13) +/* Flag that BO should not be cached by GPU. Coherent without having to flush + * GPU caches explicitly + * + * This influences the choice of MTYPE in the PTEs on GFXv9 and later GPUs and + * may override the MTYPE selected in AMDGPU_VA_OP_MAP. + */ +#define AMDGPU_GEM_CREATE_UNCACHED (1 << 14) struct drm_amdgpu_gem_create_in { /** the requested memory size */ diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index 868d6909b718..bc056f2d537d 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -744,6 +744,35 @@ extern "C" { */ #define DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED fourcc_mod_code(VIVANTE, 4) +/* + * Vivante TS (tile-status) buffer modifiers. They can be combined with all of + * the color buffer tiling modifiers defined above. When TS is present it's a + * separate buffer containing the clear/compression status of each tile. The + * modifiers are defined as VIVANTE_MOD_TS_c_s, where c is the color buffer + * tile size in bytes covered by one entry in the status buffer and s is the + * number of status bits per entry. + * We reserve the top 8 bits of the Vivante modifier space for tile status + * clear/compression modifiers, as future cores might add some more TS layout + * variations. + */ +#define VIVANTE_MOD_TS_64_4 (1ULL << 48) +#define VIVANTE_MOD_TS_64_2 (2ULL << 48) +#define VIVANTE_MOD_TS_128_4 (3ULL << 48) +#define VIVANTE_MOD_TS_256_4 (4ULL << 48) +#define VIVANTE_MOD_TS_MASK (0xfULL << 48) + +/* + * Vivante compression modifiers. Those depend on a TS modifier being present + * as the TS bits get reinterpreted as compression tags instead of simple + * clear markers when compression is enabled. + */ +#define VIVANTE_MOD_COMP_DEC400 (1ULL << 52) +#define VIVANTE_MOD_COMP_MASK (0xfULL << 52) + +/* Masking out the extension bits will yield the base modifier. */ +#define VIVANTE_MOD_EXT_MASK (VIVANTE_MOD_TS_MASK | \ + VIVANTE_MOD_COMP_MASK) + /* NVIDIA frame buffer modifiers */ /* diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h index fa953309d9ce..46becedf5b2f 100644 --- a/include/uapi/drm/drm_mode.h +++ b/include/uapi/drm/drm_mode.h @@ -935,12 +935,31 @@ struct hdr_output_metadata { }; }; +/** + * DRM_MODE_PAGE_FLIP_EVENT + * + * Request that the kernel sends back a vblank event (see + * struct drm_event_vblank) with the &DRM_EVENT_FLIP_COMPLETE type when the + * page-flip is done. + */ #define DRM_MODE_PAGE_FLIP_EVENT 0x01 +/** + * DRM_MODE_PAGE_FLIP_ASYNC + * + * Request that the page-flip is performed as soon as possible, ie. with no + * delay due to waiting for vblank. This may cause tearing to be visible on + * the screen. + */ #define DRM_MODE_PAGE_FLIP_ASYNC 0x02 #define DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE 0x4 #define DRM_MODE_PAGE_FLIP_TARGET_RELATIVE 0x8 #define DRM_MODE_PAGE_FLIP_TARGET (DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE | \ DRM_MODE_PAGE_FLIP_TARGET_RELATIVE) +/** + * DRM_MODE_PAGE_FLIP_FLAGS + * + * Bitmask of flags suitable for &drm_mode_crtc_page_flip_target.flags. + */ #define DRM_MODE_PAGE_FLIP_FLAGS (DRM_MODE_PAGE_FLIP_EVENT | \ DRM_MODE_PAGE_FLIP_ASYNC | \ DRM_MODE_PAGE_FLIP_TARGET) @@ -1034,11 +1053,53 @@ struct drm_mode_destroy_dumb { __u32 handle; }; -/* page-flip flags are valid, plus: */ +/** + * DRM_MODE_ATOMIC_TEST_ONLY + * + * Do not apply the atomic commit, instead check whether the hardware supports + * this configuration. + * + * See &drm_mode_config_funcs.atomic_check for more details on test-only + * commits. + */ #define DRM_MODE_ATOMIC_TEST_ONLY 0x0100 +/** + * DRM_MODE_ATOMIC_NONBLOCK + * + * Do not block while applying the atomic commit. The &DRM_IOCTL_MODE_ATOMIC + * IOCTL returns immediately instead of waiting for the changes to be applied + * in hardware. Note, the driver will still check that the update can be + * applied before retuning. + */ #define DRM_MODE_ATOMIC_NONBLOCK 0x0200 +/** + * DRM_MODE_ATOMIC_ALLOW_MODESET + * + * Allow the update to result in temporary or transient visible artifacts while + * the update is being applied. Applying the update may also take significantly + * more time than a page flip. All visual artifacts will disappear by the time + * the update is completed, as signalled through the vblank event's timestamp + * (see struct drm_event_vblank). + * + * This flag must be set when the KMS update might cause visible artifacts. + * Without this flag such KMS update will return a EINVAL error. What kind of + * update may cause visible artifacts depends on the driver and the hardware. + * User-space that needs to know beforehand if an update might cause visible + * artifacts can use &DRM_MODE_ATOMIC_TEST_ONLY without + * &DRM_MODE_ATOMIC_ALLOW_MODESET to see if it fails. + * + * To the best of the driver's knowledge, visual artifacts are guaranteed to + * not appear when this flag is not set. Some sinks might display visual + * artifacts outside of the driver's control. + */ #define DRM_MODE_ATOMIC_ALLOW_MODESET 0x0400 +/** + * DRM_MODE_ATOMIC_FLAGS + * + * Bitfield of flags accepted by the &DRM_IOCTL_MODE_ATOMIC IOCTL in + * &drm_mode_atomic.flags. + */ #define DRM_MODE_ATOMIC_FLAGS (\ DRM_MODE_PAGE_FLIP_EVENT |\ DRM_MODE_PAGE_FLIP_ASYNC |\ diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index 520ad2691a99..8df261c5ab9b 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -645,6 +645,22 @@ typedef struct drm_i915_irq_wait { */ #define I915_SCHEDULER_CAP_STATIC_PRIORITY_MAP (1ul << 5) +/* + * Query the status of HuC load. + * + * The query can fail in the following scenarios with the listed error codes: + * -ENODEV if HuC is not present on this platform, + * -EOPNOTSUPP if HuC firmware usage is disabled, + * -ENOPKG if HuC firmware fetch failed, + * -ENOEXEC if HuC firmware is invalid or mismatched, + * -ENOMEM if i915 failed to prepare the FW objects for transfer to the uC, + * -EIO if the FW transfer or the FW authentication failed. + * + * If the IOCTL is successful, the returned parameter will be set to one of the + * following values: + * * 0 if HuC firmware load is not complete, + * * 1 if HuC firmware is authenticated and running. + */ #define I915_PARAM_HUC_STATUS 42 /* Query whether DRM_I915_GEM_EXECBUFFER2 supports the ability to opt-out of @@ -749,6 +765,12 @@ typedef struct drm_i915_irq_wait { /* Query if the kernel supports the I915_USERPTR_PROBE flag. */ #define I915_PARAM_HAS_USERPTR_PROBE 56 +/* + * Frequency of the timestamps in OA reports. This used to be the same as the CS + * timestamp frequency, but differs on some platforms. + */ +#define I915_PARAM_OA_TIMESTAMP_FREQUENCY 57 + /* Must be kept compact -- no holes and well documented */ /** @@ -2650,6 +2672,10 @@ enum drm_i915_oa_format { I915_OA_FORMAT_A12_B8_C8, I915_OA_FORMAT_A32u40_A4u32_B8_C8, + /* DG2 */ + I915_OAR_FORMAT_A32u40_A4u32_B8_C8, + I915_OA_FORMAT_A24u40_A14u32_B8_C8, + I915_OA_FORMAT_MAX /* non-ABI */ }; @@ -3493,27 +3519,13 @@ struct drm_i915_gem_create_ext { * * The (page-aligned) allocated size for the object will be returned. * - * DG2 64K min page size implications: - * - * On discrete platforms, starting from DG2, we have to contend with GTT - * page size restrictions when dealing with I915_MEMORY_CLASS_DEVICE - * objects. Specifically the hardware only supports 64K or larger GTT - * page sizes for such memory. The kernel will already ensure that all - * I915_MEMORY_CLASS_DEVICE memory is allocated using 64K or larger page - * sizes underneath. - * - * Note that the returned size here will always reflect any required - * rounding up done by the kernel, i.e 4K will now become 64K on devices - * such as DG2. The kernel will always select the largest minimum - * page-size for the set of possible placements as the value to use when - * rounding up the @size. - * - * Special DG2 GTT address alignment requirement: - * - * The GTT alignment will also need to be at least 2M for such objects. + * On platforms like DG2/ATS the kernel will always use 64K or larger + * pages for I915_MEMORY_CLASS_DEVICE. The kernel also requires a + * minimum of 64K GTT alignment for such objects. * - * Note that due to how the hardware implements 64K GTT page support, we - * have some further complications: + * NOTE: Previously the ABI here required a minimum GTT alignment of 2M + * on DG2/ATS, due to how the hardware implemented 64K GTT page support, + * where we had the following complications: * * 1) The entire PDE (which covers a 2MB virtual address range), must * contain only 64K PTEs, i.e mixing 4K and 64K PTEs in the same @@ -3522,12 +3534,10 @@ struct drm_i915_gem_create_ext { * 2) We still need to support 4K PTEs for I915_MEMORY_CLASS_SYSTEM * objects. * - * To keep things simple for userland, we mandate that any GTT mappings - * must be aligned to and rounded up to 2MB. The kernel will internally - * pad them out to the next 2MB boundary. As this only wastes virtual - * address space and avoids userland having to copy any needlessly - * complicated PDE sharing scheme (coloring) and only affects DG2, this - * is deemed to be a good compromise. + * However on actual production HW this was completely changed to now + * allow setting a TLB hint at the PTE level (see PS64), which is a lot + * more flexible than the above. With this the 2M restriction was + * dropped where we now only require 64K. */ __u64 size; diff --git a/include/video/nomodeset.h b/include/video/nomodeset.h new file mode 100644 index 000000000000..8f8688b8beab --- /dev/null +++ b/include/video/nomodeset.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: MIT */ + +#ifndef VIDEO_NOMODESET_H +#define VIDEO_NOMODESET_H + +bool video_firmware_drivers_only(void); + +#endif |