185e634bcSDaniel Vetter /* 285e634bcSDaniel Vetter * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. 385e634bcSDaniel Vetter * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. 485e634bcSDaniel Vetter * Copyright (c) 2009-2010, Code Aurora Forum. 585e634bcSDaniel Vetter * Copyright 2016 Intel Corp. 685e634bcSDaniel Vetter * 785e634bcSDaniel Vetter * Permission is hereby granted, free of charge, to any person obtaining a 885e634bcSDaniel Vetter * copy of this software and associated documentation files (the "Software"), 985e634bcSDaniel Vetter * to deal in the Software without restriction, including without limitation 1085e634bcSDaniel Vetter * the rights to use, copy, modify, merge, publish, distribute, sublicense, 1185e634bcSDaniel Vetter * and/or sell copies of the Software, and to permit persons to whom the 1285e634bcSDaniel Vetter * Software is furnished to do so, subject to the following conditions: 1385e634bcSDaniel Vetter * 1485e634bcSDaniel Vetter * The above copyright notice and this permission notice (including the next 1585e634bcSDaniel Vetter * paragraph) shall be included in all copies or substantial portions of the 1685e634bcSDaniel Vetter * Software. 1785e634bcSDaniel Vetter * 1885e634bcSDaniel Vetter * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 1985e634bcSDaniel Vetter * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 2085e634bcSDaniel Vetter * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 2185e634bcSDaniel Vetter * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 2285e634bcSDaniel Vetter * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 2385e634bcSDaniel Vetter * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 2485e634bcSDaniel Vetter * OTHER DEALINGS IN THE SOFTWARE. 2585e634bcSDaniel Vetter */ 2685e634bcSDaniel Vetter 2785e634bcSDaniel Vetter #ifndef _DRM_DRV_H_ 2885e634bcSDaniel Vetter #define _DRM_DRV_H_ 2985e634bcSDaniel Vetter 3085e634bcSDaniel Vetter #include <linux/list.h> 3185e634bcSDaniel Vetter #include <linux/irqreturn.h> 3285e634bcSDaniel Vetter 3385e634bcSDaniel Vetter struct drm_device; 3485e634bcSDaniel Vetter struct drm_file; 3585e634bcSDaniel Vetter struct drm_gem_object; 3685e634bcSDaniel Vetter struct drm_master; 3785e634bcSDaniel Vetter struct drm_minor; 3885e634bcSDaniel Vetter struct dma_buf_attachment; 3985e634bcSDaniel Vetter struct drm_display_mode; 4085e634bcSDaniel Vetter struct drm_mode_create_dumb; 4185e634bcSDaniel Vetter 4285e634bcSDaniel Vetter /* driver capabilities and requirements mask */ 4385e634bcSDaniel Vetter #define DRIVER_USE_AGP 0x1 4485e634bcSDaniel Vetter #define DRIVER_LEGACY 0x2 4585e634bcSDaniel Vetter #define DRIVER_PCI_DMA 0x8 4685e634bcSDaniel Vetter #define DRIVER_SG 0x10 4785e634bcSDaniel Vetter #define DRIVER_HAVE_DMA 0x20 4885e634bcSDaniel Vetter #define DRIVER_HAVE_IRQ 0x40 4985e634bcSDaniel Vetter #define DRIVER_IRQ_SHARED 0x80 5085e634bcSDaniel Vetter #define DRIVER_GEM 0x1000 5185e634bcSDaniel Vetter #define DRIVER_MODESET 0x2000 5285e634bcSDaniel Vetter #define DRIVER_PRIME 0x4000 5385e634bcSDaniel Vetter #define DRIVER_RENDER 0x8000 5485e634bcSDaniel Vetter #define DRIVER_ATOMIC 0x10000 5585e634bcSDaniel Vetter #define DRIVER_KMS_LEGACY_CONTEXT 0x20000 5685e634bcSDaniel Vetter 5785e634bcSDaniel Vetter /** 5885e634bcSDaniel Vetter * struct drm_driver - DRM driver structure 5985e634bcSDaniel Vetter * 6085e634bcSDaniel Vetter * This structure represent the common code for a family of cards. There will 6185e634bcSDaniel Vetter * one drm_device for each card present in this family. It contains lots of 6285e634bcSDaniel Vetter * vfunc entries, and a pile of those probably should be moved to more 6385e634bcSDaniel Vetter * appropriate places like &drm_mode_config_funcs or into a new operations 6485e634bcSDaniel Vetter * structure for GEM drivers. 6585e634bcSDaniel Vetter */ 6685e634bcSDaniel Vetter struct drm_driver { 6785e634bcSDaniel Vetter int (*load) (struct drm_device *, unsigned long flags); 6885e634bcSDaniel Vetter int (*firstopen) (struct drm_device *); 6985e634bcSDaniel Vetter int (*open) (struct drm_device *, struct drm_file *); 7085e634bcSDaniel Vetter void (*preclose) (struct drm_device *, struct drm_file *file_priv); 7185e634bcSDaniel Vetter void (*postclose) (struct drm_device *, struct drm_file *); 7285e634bcSDaniel Vetter void (*lastclose) (struct drm_device *); 7385e634bcSDaniel Vetter int (*unload) (struct drm_device *); 7485e634bcSDaniel Vetter int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv); 7585e634bcSDaniel Vetter int (*dma_quiescent) (struct drm_device *); 7685e634bcSDaniel Vetter int (*context_dtor) (struct drm_device *dev, int context); 7785e634bcSDaniel Vetter int (*set_busid)(struct drm_device *dev, struct drm_master *master); 7885e634bcSDaniel Vetter 7985e634bcSDaniel Vetter /** 806c4789edSDaniel Vetter * @get_vblank_counter: 8185e634bcSDaniel Vetter * 826c4789edSDaniel Vetter * Driver callback for fetching a raw hardware vblank counter for the 836c4789edSDaniel Vetter * CRTC specified with the pipe argument. If a device doesn't have a 846c4789edSDaniel Vetter * hardware counter, the driver can simply use 856c4789edSDaniel Vetter * drm_vblank_no_hw_counter() function. The DRM core will account for 8685e634bcSDaniel Vetter * missed vblank events while interrupts where disabled based on system 8785e634bcSDaniel Vetter * timestamps. 8885e634bcSDaniel Vetter * 8985e634bcSDaniel Vetter * Wraparound handling and loss of events due to modesetting is dealt 906c4789edSDaniel Vetter * with in the DRM core code, as long as drivers call 916c4789edSDaniel Vetter * drm_crtc_vblank_off() and drm_crtc_vblank_on() when disabling or 926c4789edSDaniel Vetter * enabling a CRTC. 9385e634bcSDaniel Vetter * 946c4789edSDaniel Vetter * Returns: 956c4789edSDaniel Vetter * 9685e634bcSDaniel Vetter * Raw vblank counter value. 9785e634bcSDaniel Vetter */ 9885e634bcSDaniel Vetter u32 (*get_vblank_counter) (struct drm_device *dev, unsigned int pipe); 9985e634bcSDaniel Vetter 10085e634bcSDaniel Vetter /** 1016c4789edSDaniel Vetter * @enable_vblank: 10285e634bcSDaniel Vetter * 1036c4789edSDaniel Vetter * Enable vblank interrupts for the CRTC specified with the pipe 1046c4789edSDaniel Vetter * argument. 10585e634bcSDaniel Vetter * 1066c4789edSDaniel Vetter * Returns: 1076c4789edSDaniel Vetter * 10885e634bcSDaniel Vetter * Zero on success, appropriate errno if the given @crtc's vblank 10985e634bcSDaniel Vetter * interrupt cannot be enabled. 11085e634bcSDaniel Vetter */ 11185e634bcSDaniel Vetter int (*enable_vblank) (struct drm_device *dev, unsigned int pipe); 11285e634bcSDaniel Vetter 11385e634bcSDaniel Vetter /** 1146c4789edSDaniel Vetter * @disable_vblank: 11585e634bcSDaniel Vetter * 1166c4789edSDaniel Vetter * Disable vblank interrupts for the CRTC specified with the pipe 1176c4789edSDaniel Vetter * argument. 11885e634bcSDaniel Vetter */ 11985e634bcSDaniel Vetter void (*disable_vblank) (struct drm_device *dev, unsigned int pipe); 12085e634bcSDaniel Vetter 12185e634bcSDaniel Vetter /** 1226c4789edSDaniel Vetter * @device_is_agp: 12385e634bcSDaniel Vetter * 1246c4789edSDaniel Vetter * Called by drm_device_is_agp(). Typically used to determine if a card 1256c4789edSDaniel Vetter * is really attached to AGP or not. 12685e634bcSDaniel Vetter * 1276c4789edSDaniel Vetter * Returns: 1286c4789edSDaniel Vetter * 12985e634bcSDaniel Vetter * One of three values is returned depending on whether or not the 1306c4789edSDaniel Vetter * card is absolutely not AGP (return of 0), absolutely is AGP 13185e634bcSDaniel Vetter * (return of 1), or may or may not be AGP (return of 2). 13285e634bcSDaniel Vetter */ 13385e634bcSDaniel Vetter int (*device_is_agp) (struct drm_device *dev); 13485e634bcSDaniel Vetter 13585e634bcSDaniel Vetter /** 1366c4789edSDaniel Vetter * @get_scanout_position: 1376c4789edSDaniel Vetter * 13885e634bcSDaniel Vetter * Called by vblank timestamping code. 13985e634bcSDaniel Vetter * 1406c4789edSDaniel Vetter * Returns the current display scanout position from a crtc, and an 1416c4789edSDaniel Vetter * optional accurate ktime_get() timestamp of when position was 1426c4789edSDaniel Vetter * measured. Note that this is a helper callback which is only used if a 1436c4789edSDaniel Vetter * driver uses drm_calc_vbltimestamp_from_scanoutpos() for the 1446c4789edSDaniel Vetter * @get_vblank_timestamp callback. 14585e634bcSDaniel Vetter * 1466c4789edSDaniel Vetter * Parameters: 1476c4789edSDaniel Vetter * 1486c4789edSDaniel Vetter * dev: 1496c4789edSDaniel Vetter * DRM device. 1506c4789edSDaniel Vetter * pipe: 1516c4789edSDaniel Vetter * Id of the crtc to query. 1526c4789edSDaniel Vetter * flags: 1536c4789edSDaniel Vetter * Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0). 1546c4789edSDaniel Vetter * vpos: 1556c4789edSDaniel Vetter * Target location for current vertical scanout position. 1566c4789edSDaniel Vetter * hpos: 1576c4789edSDaniel Vetter * Target location for current horizontal scanout position. 1586c4789edSDaniel Vetter * stime: 1596c4789edSDaniel Vetter * Target location for timestamp taken immediately before 16085e634bcSDaniel Vetter * scanout position query. Can be NULL to skip timestamp. 1616c4789edSDaniel Vetter * etime: 1626c4789edSDaniel Vetter * Target location for timestamp taken immediately after 16385e634bcSDaniel Vetter * scanout position query. Can be NULL to skip timestamp. 1646c4789edSDaniel Vetter * mode: 1656c4789edSDaniel Vetter * Current display timings. 16685e634bcSDaniel Vetter * 16785e634bcSDaniel Vetter * Returns vpos as a positive number while in active scanout area. 16885e634bcSDaniel Vetter * Returns vpos as a negative number inside vblank, counting the number 16985e634bcSDaniel Vetter * of scanlines to go until end of vblank, e.g., -1 means "one scanline 17085e634bcSDaniel Vetter * until start of active scanout / end of vblank." 17185e634bcSDaniel Vetter * 1726c4789edSDaniel Vetter * Returns: 17385e634bcSDaniel Vetter * 1746c4789edSDaniel Vetter * Flags, or'ed together as follows: 1756c4789edSDaniel Vetter * 1766c4789edSDaniel Vetter * DRM_SCANOUTPOS_VALID: 1776c4789edSDaniel Vetter * Query successful. 1786c4789edSDaniel Vetter * DRM_SCANOUTPOS_INVBL: 1796c4789edSDaniel Vetter * Inside vblank. 1806c4789edSDaniel Vetter * DRM_SCANOUTPOS_ACCURATE: Returned position is accurate. A lack of 1816c4789edSDaniel Vetter * this flag means that returned position may be offset by a 1826c4789edSDaniel Vetter * constant but unknown small number of scanlines wrt. real scanout 1836c4789edSDaniel Vetter * position. 18485e634bcSDaniel Vetter * 18585e634bcSDaniel Vetter */ 18685e634bcSDaniel Vetter int (*get_scanout_position) (struct drm_device *dev, unsigned int pipe, 18785e634bcSDaniel Vetter unsigned int flags, int *vpos, int *hpos, 18885e634bcSDaniel Vetter ktime_t *stime, ktime_t *etime, 18985e634bcSDaniel Vetter const struct drm_display_mode *mode); 19085e634bcSDaniel Vetter 19185e634bcSDaniel Vetter /** 1926c4789edSDaniel Vetter * @get_vblank_timestamp: 1936c4789edSDaniel Vetter * 1946c4789edSDaniel Vetter * Called by drm_get_last_vbltimestamp(). Should return a precise 19585e634bcSDaniel Vetter * timestamp when the most recent VBLANK interval ended or will end. 19685e634bcSDaniel Vetter * 19785e634bcSDaniel Vetter * Specifically, the timestamp in @vblank_time should correspond as 19885e634bcSDaniel Vetter * closely as possible to the time when the first video scanline of 19985e634bcSDaniel Vetter * the video frame after the end of VBLANK will start scanning out, 20085e634bcSDaniel Vetter * the time immediately after end of the VBLANK interval. If the 20185e634bcSDaniel Vetter * @crtc is currently inside VBLANK, this will be a time in the future. 20285e634bcSDaniel Vetter * If the @crtc is currently scanning out a frame, this will be the 20385e634bcSDaniel Vetter * past start time of the current scanout. This is meant to adhere 20485e634bcSDaniel Vetter * to the OpenML OML_sync_control extension specification. 20585e634bcSDaniel Vetter * 2066c4789edSDaniel Vetter * Paramters: 2076c4789edSDaniel Vetter * 2086c4789edSDaniel Vetter * dev: 2096c4789edSDaniel Vetter * dev DRM device handle. 2106c4789edSDaniel Vetter * pipe: 2116c4789edSDaniel Vetter * crtc for which timestamp should be returned. 2126c4789edSDaniel Vetter * max_error: 2136c4789edSDaniel Vetter * Maximum allowable timestamp error in nanoseconds. 21485e634bcSDaniel Vetter * Implementation should strive to provide timestamp 2156c4789edSDaniel Vetter * with an error of at most max_error nanoseconds. 21685e634bcSDaniel Vetter * Returns true upper bound on error for timestamp. 2176c4789edSDaniel Vetter * vblank_time: 2186c4789edSDaniel Vetter * Target location for returned vblank timestamp. 2196c4789edSDaniel Vetter * flags: 2206c4789edSDaniel Vetter * 0 = Defaults, no special treatment needed. 2216c4789edSDaniel Vetter * DRM_CALLED_FROM_VBLIRQ = Function is called from vblank 22285e634bcSDaniel Vetter * irq handler. Some drivers need to apply some workarounds 22385e634bcSDaniel Vetter * for gpu-specific vblank irq quirks if flag is set. 22485e634bcSDaniel Vetter * 2256c4789edSDaniel Vetter * Returns: 2266c4789edSDaniel Vetter * 22785e634bcSDaniel Vetter * Zero if timestamping isn't supported in current display mode or a 22885e634bcSDaniel Vetter * negative number on failure. A positive status code on success, 22985e634bcSDaniel Vetter * which describes how the vblank_time timestamp was computed. 23085e634bcSDaniel Vetter */ 23185e634bcSDaniel Vetter int (*get_vblank_timestamp) (struct drm_device *dev, unsigned int pipe, 23285e634bcSDaniel Vetter int *max_error, 23385e634bcSDaniel Vetter struct timeval *vblank_time, 23485e634bcSDaniel Vetter unsigned flags); 23585e634bcSDaniel Vetter 23685e634bcSDaniel Vetter /* these have to be filled in */ 23785e634bcSDaniel Vetter 23885e634bcSDaniel Vetter irqreturn_t(*irq_handler) (int irq, void *arg); 23985e634bcSDaniel Vetter void (*irq_preinstall) (struct drm_device *dev); 24085e634bcSDaniel Vetter int (*irq_postinstall) (struct drm_device *dev); 24185e634bcSDaniel Vetter void (*irq_uninstall) (struct drm_device *dev); 24285e634bcSDaniel Vetter 24385e634bcSDaniel Vetter /** 2446c4789edSDaniel Vetter * @master_create: 2456c4789edSDaniel Vetter * 2466c4789edSDaniel Vetter * Called whenever a new master is created. Only used by vmwgfx. 24785e634bcSDaniel Vetter */ 2486c4789edSDaniel Vetter int (*master_create)(struct drm_device *dev, struct drm_master *master); 24985e634bcSDaniel Vetter 2506c4789edSDaniel Vetter /** 2516c4789edSDaniel Vetter * @master_destroy: 2526c4789edSDaniel Vetter * 2536c4789edSDaniel Vetter * Called whenever a master is destroyed. Only used by vmwgfx. 2546c4789edSDaniel Vetter */ 2556c4789edSDaniel Vetter void (*master_destroy)(struct drm_device *dev, struct drm_master *master); 2566c4789edSDaniel Vetter 2576c4789edSDaniel Vetter /** 2586c4789edSDaniel Vetter * @master_set: 2596c4789edSDaniel Vetter * 2606c4789edSDaniel Vetter * Called whenever the minor master is set. Only used by vmwgfx. 2616c4789edSDaniel Vetter */ 26285e634bcSDaniel Vetter int (*master_set)(struct drm_device *dev, struct drm_file *file_priv, 26385e634bcSDaniel Vetter bool from_open); 2646c4789edSDaniel Vetter /** 2656c4789edSDaniel Vetter * @master_drop: 2666c4789edSDaniel Vetter * 2676c4789edSDaniel Vetter * Called whenever the minor master is dropped. Only used by vmwgfx. 2686c4789edSDaniel Vetter */ 26985e634bcSDaniel Vetter void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv); 27085e634bcSDaniel Vetter 27185e634bcSDaniel Vetter int (*debugfs_init)(struct drm_minor *minor); 27285e634bcSDaniel Vetter void (*debugfs_cleanup)(struct drm_minor *minor); 27385e634bcSDaniel Vetter 27485e634bcSDaniel Vetter /** 27585e634bcSDaniel Vetter * @gem_free_object: deconstructor for drm_gem_objects 27685e634bcSDaniel Vetter * 27785e634bcSDaniel Vetter * This is deprecated and should not be used by new drivers. Use 27885e634bcSDaniel Vetter * @gem_free_object_unlocked instead. 27985e634bcSDaniel Vetter */ 28085e634bcSDaniel Vetter void (*gem_free_object) (struct drm_gem_object *obj); 28185e634bcSDaniel Vetter 28285e634bcSDaniel Vetter /** 28385e634bcSDaniel Vetter * @gem_free_object_unlocked: deconstructor for drm_gem_objects 28485e634bcSDaniel Vetter * 28585e634bcSDaniel Vetter * This is for drivers which are not encumbered with dev->struct_mutex 28685e634bcSDaniel Vetter * legacy locking schemes. Use this hook instead of @gem_free_object. 28785e634bcSDaniel Vetter */ 28885e634bcSDaniel Vetter void (*gem_free_object_unlocked) (struct drm_gem_object *obj); 28985e634bcSDaniel Vetter 29085e634bcSDaniel Vetter int (*gem_open_object) (struct drm_gem_object *, struct drm_file *); 29185e634bcSDaniel Vetter void (*gem_close_object) (struct drm_gem_object *, struct drm_file *); 29285e634bcSDaniel Vetter 29385e634bcSDaniel Vetter /** 29485e634bcSDaniel Vetter * Hook for allocating the GEM object struct, for use by core 29585e634bcSDaniel Vetter * helpers. 29685e634bcSDaniel Vetter */ 29785e634bcSDaniel Vetter struct drm_gem_object *(*gem_create_object)(struct drm_device *dev, 29885e634bcSDaniel Vetter size_t size); 29985e634bcSDaniel Vetter 30085e634bcSDaniel Vetter /* prime: */ 30185e634bcSDaniel Vetter /* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */ 30285e634bcSDaniel Vetter int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv, 30385e634bcSDaniel Vetter uint32_t handle, uint32_t flags, int *prime_fd); 30485e634bcSDaniel Vetter /* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */ 30585e634bcSDaniel Vetter int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv, 30685e634bcSDaniel Vetter int prime_fd, uint32_t *handle); 30785e634bcSDaniel Vetter /* export GEM -> dmabuf */ 30885e634bcSDaniel Vetter struct dma_buf * (*gem_prime_export)(struct drm_device *dev, 30985e634bcSDaniel Vetter struct drm_gem_object *obj, int flags); 31085e634bcSDaniel Vetter /* import dmabuf -> GEM */ 31185e634bcSDaniel Vetter struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev, 31285e634bcSDaniel Vetter struct dma_buf *dma_buf); 31385e634bcSDaniel Vetter /* low-level interface used by drm_gem_prime_{import,export} */ 31485e634bcSDaniel Vetter int (*gem_prime_pin)(struct drm_gem_object *obj); 31585e634bcSDaniel Vetter void (*gem_prime_unpin)(struct drm_gem_object *obj); 31685e634bcSDaniel Vetter struct reservation_object * (*gem_prime_res_obj)( 31785e634bcSDaniel Vetter struct drm_gem_object *obj); 31885e634bcSDaniel Vetter struct sg_table *(*gem_prime_get_sg_table)(struct drm_gem_object *obj); 31985e634bcSDaniel Vetter struct drm_gem_object *(*gem_prime_import_sg_table)( 32085e634bcSDaniel Vetter struct drm_device *dev, 32185e634bcSDaniel Vetter struct dma_buf_attachment *attach, 32285e634bcSDaniel Vetter struct sg_table *sgt); 32385e634bcSDaniel Vetter void *(*gem_prime_vmap)(struct drm_gem_object *obj); 32485e634bcSDaniel Vetter void (*gem_prime_vunmap)(struct drm_gem_object *obj, void *vaddr); 32585e634bcSDaniel Vetter int (*gem_prime_mmap)(struct drm_gem_object *obj, 32685e634bcSDaniel Vetter struct vm_area_struct *vma); 32785e634bcSDaniel Vetter 32885e634bcSDaniel Vetter /* vga arb irq handler */ 32985e634bcSDaniel Vetter void (*vgaarb_irq)(struct drm_device *dev, bool state); 33085e634bcSDaniel Vetter 3314f93624eSDaniel Vetter /** 3324f93624eSDaniel Vetter * @dumb_create: 3334f93624eSDaniel Vetter * 3344f93624eSDaniel Vetter * This creates a new dumb buffer in the driver's backing storage manager (GEM, 3354f93624eSDaniel Vetter * TTM or something else entirely) and returns the resulting buffer handle. This 3364f93624eSDaniel Vetter * handle can then be wrapped up into a framebuffer modeset object. 3374f93624eSDaniel Vetter * 3384f93624eSDaniel Vetter * Note that userspace is not allowed to use such objects for render 3394f93624eSDaniel Vetter * acceleration - drivers must create their own private ioctls for such a use 3404f93624eSDaniel Vetter * case. 3414f93624eSDaniel Vetter * 3424f93624eSDaniel Vetter * Width, height and depth are specified in the &drm_mode_create_dumb 3434f93624eSDaniel Vetter * argument. The callback needs to fill the handle, pitch and size for 3444f93624eSDaniel Vetter * the created buffer. 3454f93624eSDaniel Vetter * 3464f93624eSDaniel Vetter * Called by the user via ioctl. 3474f93624eSDaniel Vetter * 3484f93624eSDaniel Vetter * Returns: 3494f93624eSDaniel Vetter * 3504f93624eSDaniel Vetter * Zero on success, negative errno on failure. 3514f93624eSDaniel Vetter */ 35285e634bcSDaniel Vetter int (*dumb_create)(struct drm_file *file_priv, 35385e634bcSDaniel Vetter struct drm_device *dev, 35485e634bcSDaniel Vetter struct drm_mode_create_dumb *args); 3554f93624eSDaniel Vetter /** 3564f93624eSDaniel Vetter * @dumb_map_offset: 3574f93624eSDaniel Vetter * 3584f93624eSDaniel Vetter * Allocate an offset in the drm device node's address space to be able to 3594f93624eSDaniel Vetter * memory map a dumb buffer. GEM-based drivers must use 3604f93624eSDaniel Vetter * drm_gem_create_mmap_offset() to implement this. 3614f93624eSDaniel Vetter * 3624f93624eSDaniel Vetter * Called by the user via ioctl. 3634f93624eSDaniel Vetter * 3644f93624eSDaniel Vetter * Returns: 3654f93624eSDaniel Vetter * 3664f93624eSDaniel Vetter * Zero on success, negative errno on failure. 3674f93624eSDaniel Vetter */ 36885e634bcSDaniel Vetter int (*dumb_map_offset)(struct drm_file *file_priv, 36985e634bcSDaniel Vetter struct drm_device *dev, uint32_t handle, 37085e634bcSDaniel Vetter uint64_t *offset); 3714f93624eSDaniel Vetter /** 3724f93624eSDaniel Vetter * @dumb_destroy: 3734f93624eSDaniel Vetter * 3744f93624eSDaniel Vetter * This destroys the userspace handle for the given dumb backing storage buffer. 3754f93624eSDaniel Vetter * Since buffer objects must be reference counted in the kernel a buffer object 3764f93624eSDaniel Vetter * won't be immediately freed if a framebuffer modeset object still uses it. 3774f93624eSDaniel Vetter * 3784f93624eSDaniel Vetter * Called by the user via ioctl. 3794f93624eSDaniel Vetter * 3804f93624eSDaniel Vetter * Returns: 3814f93624eSDaniel Vetter * 3824f93624eSDaniel Vetter * Zero on success, negative errno on failure. 3834f93624eSDaniel Vetter */ 38485e634bcSDaniel Vetter int (*dumb_destroy)(struct drm_file *file_priv, 38585e634bcSDaniel Vetter struct drm_device *dev, 38685e634bcSDaniel Vetter uint32_t handle); 38785e634bcSDaniel Vetter 38885e634bcSDaniel Vetter /* Driver private ops for this object */ 38985e634bcSDaniel Vetter const struct vm_operations_struct *gem_vm_ops; 39085e634bcSDaniel Vetter 39185e634bcSDaniel Vetter int major; 39285e634bcSDaniel Vetter int minor; 39385e634bcSDaniel Vetter int patchlevel; 39485e634bcSDaniel Vetter char *name; 39585e634bcSDaniel Vetter char *desc; 39685e634bcSDaniel Vetter char *date; 39785e634bcSDaniel Vetter 39885e634bcSDaniel Vetter u32 driver_features; 39985e634bcSDaniel Vetter int dev_priv_size; 40085e634bcSDaniel Vetter const struct drm_ioctl_desc *ioctls; 40185e634bcSDaniel Vetter int num_ioctls; 40285e634bcSDaniel Vetter const struct file_operations *fops; 40385e634bcSDaniel Vetter 40485e634bcSDaniel Vetter /* List of devices hanging off this driver with stealth attach. */ 40585e634bcSDaniel Vetter struct list_head legacy_dev_list; 40685e634bcSDaniel Vetter }; 40785e634bcSDaniel Vetter 40885e634bcSDaniel Vetter extern __printf(6, 7) 40985e634bcSDaniel Vetter void drm_dev_printk(const struct device *dev, const char *level, 41085e634bcSDaniel Vetter unsigned int category, const char *function_name, 41185e634bcSDaniel Vetter const char *prefix, const char *format, ...); 41285e634bcSDaniel Vetter extern __printf(3, 4) 41385e634bcSDaniel Vetter void drm_printk(const char *level, unsigned int category, 41485e634bcSDaniel Vetter const char *format, ...); 41585e634bcSDaniel Vetter extern unsigned int drm_debug; 41685e634bcSDaniel Vetter 41785e634bcSDaniel Vetter int drm_dev_init(struct drm_device *dev, 41885e634bcSDaniel Vetter struct drm_driver *driver, 41985e634bcSDaniel Vetter struct device *parent); 42085e634bcSDaniel Vetter struct drm_device *drm_dev_alloc(struct drm_driver *driver, 42185e634bcSDaniel Vetter struct device *parent); 42285e634bcSDaniel Vetter int drm_dev_register(struct drm_device *dev, unsigned long flags); 42385e634bcSDaniel Vetter void drm_dev_unregister(struct drm_device *dev); 42485e634bcSDaniel Vetter 42585e634bcSDaniel Vetter void drm_dev_ref(struct drm_device *dev); 42685e634bcSDaniel Vetter void drm_dev_unref(struct drm_device *dev); 42785e634bcSDaniel Vetter void drm_put_dev(struct drm_device *dev); 42885e634bcSDaniel Vetter void drm_unplug_dev(struct drm_device *dev); 42985e634bcSDaniel Vetter 43063207455SDave Airlie int drm_dev_set_unique(struct drm_device *dev, const char *name); 43163207455SDave Airlie 43263207455SDave Airlie 43385e634bcSDaniel Vetter #endif 434