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Commit 85e634bc authored by Daniel Vetter's avatar Daniel Vetter
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drm: Extract drm_drv.h 

I want to move dumb buffer documentation into the right vfuncs, and
for that I first need to be able to pull that into kerneldoc without
having to clean up all of drmP.h. Also, header-splitting is nice.

While at it shuffle all the function declarations for drm_drv.c into
the right spots, and drop the kerneldoc for drm_minor_acquire/release
since it's only used internally.

v2: Keep all existing copyright notices (Chris).
Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@intel.com>
parent 8a5846bf
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Showing with 349 additions and 312 deletions
drivers/gpu/drm/drm_drv.c
View file @ 85e634bc
...@@ -32,7 +32,10 @@ ...@@ -32,7 +32,10 @@
#include <linux/moduleparam.h> #include <linux/moduleparam.h>
#include <linux/mount.h> #include <linux/mount.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <drm/drm_drv.h>
#include <drm/drmP.h> #include <drm/drmP.h>
#include "drm_crtc_internal.h" #include "drm_crtc_internal.h"
#include "drm_legacy.h" #include "drm_legacy.h"
#include "drm_internal.h" #include "drm_internal.h"
...@@ -257,10 +260,7 @@ static void drm_minor_unregister(struct drm_device *dev, unsigned int type) ...@@ -257,10 +260,7 @@ static void drm_minor_unregister(struct drm_device *dev, unsigned int type)
drm_debugfs_cleanup(minor); drm_debugfs_cleanup(minor);
} }
/** /*
* drm_minor_acquire - Acquire a DRM minor
* @minor_id: Minor ID of the DRM-minor
*
* Looks up the given minor-ID and returns the respective DRM-minor object. The * Looks up the given minor-ID and returns the respective DRM-minor object. The
* refence-count of the underlying device is increased so you must release this * refence-count of the underlying device is increased so you must release this
* object with drm_minor_release(). * object with drm_minor_release().
...@@ -268,10 +268,6 @@ static void drm_minor_unregister(struct drm_device *dev, unsigned int type) ...@@ -268,10 +268,6 @@ static void drm_minor_unregister(struct drm_device *dev, unsigned int type)
* As long as you hold this minor, it is guaranteed that the object and the * As long as you hold this minor, it is guaranteed that the object and the
* minor->dev pointer will stay valid! However, the device may get unplugged and * minor->dev pointer will stay valid! However, the device may get unplugged and
* unregistered while you hold the minor. * unregistered while you hold the minor.
*
* Returns:
* Pointer to minor-object with increased device-refcount, or PTR_ERR on
* failure.
*/ */
struct drm_minor *drm_minor_acquire(unsigned int minor_id) struct drm_minor *drm_minor_acquire(unsigned int minor_id)
{ {
...@@ -294,12 +290,6 @@ struct drm_minor *drm_minor_acquire(unsigned int minor_id) ...@@ -294,12 +290,6 @@ struct drm_minor *drm_minor_acquire(unsigned int minor_id)
return minor; return minor;
} }
/**
* drm_minor_release - Release DRM minor
* @minor: Pointer to DRM minor object
*
* Release a minor that was previously acquired via drm_minor_acquire().
*/
void drm_minor_release(struct drm_minor *minor) void drm_minor_release(struct drm_minor *minor)
{ {
drm_dev_unref(minor->dev); drm_dev_unref(minor->dev);
......
drivers/gpu/drm/drm_internal.h
View file @ 85e634bc
...@@ -46,6 +46,10 @@ void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); ...@@ -46,6 +46,10 @@ void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpriv, void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpriv,
struct dma_buf *dma_buf); struct dma_buf *dma_buf);
/* drm_drv.c */
struct drm_minor *drm_minor_acquire(unsigned int minor_id);
void drm_minor_release(struct drm_minor *minor);
/* drm_info.c */ /* drm_info.c */
int drm_name_info(struct seq_file *m, void *data); int drm_name_info(struct seq_file *m, void *data);
int drm_clients_info(struct seq_file *m, void* data); int drm_clients_info(struct seq_file *m, void* data);
......
include/drm/drmP.h
View file @ 85e634bc
...@@ -76,6 +76,7 @@ ...@@ -76,6 +76,7 @@
#include <drm/drm_os_linux.h> #include <drm/drm_os_linux.h>
#include <drm/drm_sarea.h> #include <drm/drm_sarea.h>
#include <drm/drm_vma_manager.h> #include <drm/drm_vma_manager.h>
#include <drm/drm_drv.h>
struct module; struct module;
...@@ -137,34 +138,10 @@ struct dma_buf_attachment; ...@@ -137,34 +138,10 @@ struct dma_buf_attachment;
#define DRM_UT_VBL 0x20 #define DRM_UT_VBL 0x20
#define DRM_UT_STATE 0x40 #define DRM_UT_STATE 0x40
extern __printf(6, 7)
void drm_dev_printk(const struct device *dev, const char *level,
unsigned int category, const char *function_name,
const char *prefix, const char *format, ...);
extern __printf(3, 4)
void drm_printk(const char *level, unsigned int category,
const char *format, ...);
/***********************************************************************/ /***********************************************************************/
/** \name DRM template customization defaults */ /** \name DRM template customization defaults */
/*@{*/ /*@{*/
/* driver capabilities and requirements mask */
#define DRIVER_USE_AGP 0x1
#define DRIVER_LEGACY 0x2
#define DRIVER_PCI_DMA 0x8
#define DRIVER_SG 0x10
#define DRIVER_HAVE_DMA 0x20
#define DRIVER_HAVE_IRQ 0x40
#define DRIVER_IRQ_SHARED 0x80
#define DRIVER_GEM 0x1000
#define DRIVER_MODESET 0x2000
#define DRIVER_PRIME 0x4000
#define DRIVER_RENDER 0x8000
#define DRIVER_ATOMIC 0x10000
#define DRIVER_KMS_LEGACY_CONTEXT 0x20000
/***********************************************************************/ /***********************************************************************/
/** \name Macros to make printk easier */ /** \name Macros to make printk easier */
/*@{*/ /*@{*/
...@@ -480,263 +457,6 @@ struct drm_lock_data { ...@@ -480,263 +457,6 @@ struct drm_lock_data {
#define DRM_SCANOUTPOS_IN_VBLANK (1 << 1) #define DRM_SCANOUTPOS_IN_VBLANK (1 << 1)
#define DRM_SCANOUTPOS_ACCURATE (1 << 2) #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
/**
* DRM driver structure. This structure represent the common code for
* a family of cards. There will one drm_device for each card present
* in this family
*/
struct drm_driver {
int (*load) (struct drm_device *, unsigned long flags);
int (*firstopen) (struct drm_device *);
int (*open) (struct drm_device *, struct drm_file *);
void (*preclose) (struct drm_device *, struct drm_file *file_priv);
void (*postclose) (struct drm_device *, struct drm_file *);
void (*lastclose) (struct drm_device *);
int (*unload) (struct drm_device *);
int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
int (*dma_quiescent) (struct drm_device *);
int (*context_dtor) (struct drm_device *dev, int context);
int (*set_busid)(struct drm_device *dev, struct drm_master *master);
/**
* get_vblank_counter - get raw hardware vblank counter
* @dev: DRM device
* @pipe: counter to fetch
*
* Driver callback for fetching a raw hardware vblank counter for @crtc.
* If a device doesn't have a hardware counter, the driver can simply
* use drm_vblank_no_hw_counter() function. The DRM core will account for
* missed vblank events while interrupts where disabled based on system
* timestamps.
*
* Wraparound handling and loss of events due to modesetting is dealt
* with in the DRM core code.
*
* RETURNS
* Raw vblank counter value.
*/
u32 (*get_vblank_counter) (struct drm_device *dev, unsigned int pipe);
/**
* enable_vblank - enable vblank interrupt events
* @dev: DRM device
* @pipe: which irq to enable
*
* Enable vblank interrupts for @crtc. If the device doesn't have
* a hardware vblank counter, the driver should use the
* drm_vblank_no_hw_counter() function that keeps a virtual counter.
*
* RETURNS
* Zero on success, appropriate errno if the given @crtc's vblank
* interrupt cannot be enabled.
*/
int (*enable_vblank) (struct drm_device *dev, unsigned int pipe);
/**
* disable_vblank - disable vblank interrupt events
* @dev: DRM device
* @pipe: which irq to enable
*
* Disable vblank interrupts for @crtc. If the device doesn't have
* a hardware vblank counter, the driver should use the
* drm_vblank_no_hw_counter() function that keeps a virtual counter.
*/
void (*disable_vblank) (struct drm_device *dev, unsigned int pipe);
/**
* Called by \c drm_device_is_agp. Typically used to determine if a
* card is really attached to AGP or not.
*
* \param dev DRM device handle
*
* \returns
* One of three values is returned depending on whether or not the
* card is absolutely \b not AGP (return of 0), absolutely \b is AGP
* (return of 1), or may or may not be AGP (return of 2).
*/
int (*device_is_agp) (struct drm_device *dev);
/**
* Called by vblank timestamping code.
*
* Return the current display scanout position from a crtc, and an
* optional accurate ktime_get timestamp of when position was measured.
*
* \param dev DRM device.
* \param pipe Id of the crtc to query.
* \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0).
* \param *vpos Target location for current vertical scanout position.
* \param *hpos Target location for current horizontal scanout position.
* \param *stime Target location for timestamp taken immediately before
* scanout position query. Can be NULL to skip timestamp.
* \param *etime Target location for timestamp taken immediately after
* scanout position query. Can be NULL to skip timestamp.
* \param mode Current display timings.
*
* Returns vpos as a positive number while in active scanout area.
* Returns vpos as a negative number inside vblank, counting the number
* of scanlines to go until end of vblank, e.g., -1 means "one scanline
* until start of active scanout / end of vblank."
*
* \return Flags, or'ed together as follows:
*
* DRM_SCANOUTPOS_VALID = Query successful.
* DRM_SCANOUTPOS_INVBL = Inside vblank.
* DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
* this flag means that returned position may be offset by a constant
* but unknown small number of scanlines wrt. real scanout position.
*
*/
int (*get_scanout_position) (struct drm_device *dev, unsigned int pipe,
unsigned int flags, int *vpos, int *hpos,
ktime_t *stime, ktime_t *etime,
const struct drm_display_mode *mode);
/**
* Called by \c drm_get_last_vbltimestamp. Should return a precise
* timestamp when the most recent VBLANK interval ended or will end.
*
* Specifically, the timestamp in @vblank_time should correspond as
* closely as possible to the time when the first video scanline of
* the video frame after the end of VBLANK will start scanning out,
* the time immediately after end of the VBLANK interval. If the
* @crtc is currently inside VBLANK, this will be a time in the future.
* If the @crtc is currently scanning out a frame, this will be the
* past start time of the current scanout. This is meant to adhere
* to the OpenML OML_sync_control extension specification.
*
* \param dev dev DRM device handle.
* \param pipe crtc for which timestamp should be returned.
* \param *max_error Maximum allowable timestamp error in nanoseconds.
* Implementation should strive to provide timestamp
* with an error of at most *max_error nanoseconds.
* Returns true upper bound on error for timestamp.
* \param *vblank_time Target location for returned vblank timestamp.
* \param flags 0 = Defaults, no special treatment needed.
* \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank
* irq handler. Some drivers need to apply some workarounds
* for gpu-specific vblank irq quirks if flag is set.
*
* \returns
* Zero if timestamping isn't supported in current display mode or a
* negative number on failure. A positive status code on success,
* which describes how the vblank_time timestamp was computed.
*/
int (*get_vblank_timestamp) (struct drm_device *dev, unsigned int pipe,
int *max_error,
struct timeval *vblank_time,
unsigned flags);
/* these have to be filled in */
irqreturn_t(*irq_handler) (int irq, void *arg);
void (*irq_preinstall) (struct drm_device *dev);
int (*irq_postinstall) (struct drm_device *dev);
void (*irq_uninstall) (struct drm_device *dev);
/* Master routines */
int (*master_create)(struct drm_device *dev, struct drm_master *master);
void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
/**
* master_set is called whenever the minor master is set.
* master_drop is called whenever the minor master is dropped.
*/
int (*master_set)(struct drm_device *dev, struct drm_file *file_priv,
bool from_open);
void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv);
int (*debugfs_init)(struct drm_minor *minor);
void (*debugfs_cleanup)(struct drm_minor *minor);
/**
* @gem_free_object: deconstructor for drm_gem_objects
*
* This is deprecated and should not be used by new drivers. Use
* @gem_free_object_unlocked instead.
*/
void (*gem_free_object) (struct drm_gem_object *obj);
/**
* @gem_free_object_unlocked: deconstructor for drm_gem_objects
*
* This is for drivers which are not encumbered with dev->struct_mutex
* legacy locking schemes. Use this hook instead of @gem_free_object.
*/
void (*gem_free_object_unlocked) (struct drm_gem_object *obj);
int (*gem_open_object) (struct drm_gem_object *, struct drm_file *);
void (*gem_close_object) (struct drm_gem_object *, struct drm_file *);
/**
* Hook for allocating the GEM object struct, for use by core
* helpers.
*/
struct drm_gem_object *(*gem_create_object)(struct drm_device *dev,
size_t size);
/* prime: */
/* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */
int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv,
uint32_t handle, uint32_t flags, int *prime_fd);
/* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */
int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv,
int prime_fd, uint32_t *handle);
/* export GEM -> dmabuf */
struct dma_buf * (*gem_prime_export)(struct drm_device *dev,
struct drm_gem_object *obj, int flags);
/* import dmabuf -> GEM */
struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev,
struct dma_buf *dma_buf);
/* low-level interface used by drm_gem_prime_{import,export} */
int (*gem_prime_pin)(struct drm_gem_object *obj);
void (*gem_prime_unpin)(struct drm_gem_object *obj);
struct reservation_object * (*gem_prime_res_obj)(
struct drm_gem_object *obj);
struct sg_table *(*gem_prime_get_sg_table)(struct drm_gem_object *obj);
struct drm_gem_object *(*gem_prime_import_sg_table)(
struct drm_device *dev,
struct dma_buf_attachment *attach,
struct sg_table *sgt);
void *(*gem_prime_vmap)(struct drm_gem_object *obj);
void (*gem_prime_vunmap)(struct drm_gem_object *obj, void *vaddr);
int (*gem_prime_mmap)(struct drm_gem_object *obj,
struct vm_area_struct *vma);
/* vga arb irq handler */
void (*vgaarb_irq)(struct drm_device *dev, bool state);
/* dumb alloc support */
int (*dumb_create)(struct drm_file *file_priv,
struct drm_device *dev,
struct drm_mode_create_dumb *args);
int (*dumb_map_offset)(struct drm_file *file_priv,
struct drm_device *dev, uint32_t handle,
uint64_t *offset);
int (*dumb_destroy)(struct drm_file *file_priv,
struct drm_device *dev,
uint32_t handle);
/* Driver private ops for this object */
const struct vm_operations_struct *gem_vm_ops;
int major;
int minor;
int patchlevel;
char *name;
char *desc;
char *date;
u32 driver_features;
int dev_priv_size;
const struct drm_ioctl_desc *ioctls;
int num_ioctls;
const struct file_operations *fops;
/* List of devices hanging off this driver with stealth attach. */
struct list_head legacy_dev_list;
};
enum drm_minor_type { enum drm_minor_type {
DRM_MINOR_PRIMARY, DRM_MINOR_PRIMARY,
DRM_MINOR_CONTROL, DRM_MINOR_CONTROL,
...@@ -1011,11 +731,6 @@ void drm_clflush_virt_range(void *addr, unsigned long length); ...@@ -1011,11 +731,6 @@ void drm_clflush_virt_range(void *addr, unsigned long length);
extern void drm_vblank_pre_modeset(struct drm_device *dev, unsigned int pipe); extern void drm_vblank_pre_modeset(struct drm_device *dev, unsigned int pipe);
extern void drm_vblank_post_modeset(struct drm_device *dev, unsigned int pipe); extern void drm_vblank_post_modeset(struct drm_device *dev, unsigned int pipe);
/* drm_drv.c */
void drm_put_dev(struct drm_device *dev);
void drm_unplug_dev(struct drm_device *dev);
extern unsigned int drm_debug;
/* Debugfs support */ /* Debugfs support */
#if defined(CONFIG_DEBUG_FS) #if defined(CONFIG_DEBUG_FS)
extern int drm_debugfs_create_files(const struct drm_info_list *files, extern int drm_debugfs_create_files(const struct drm_info_list *files,
...@@ -1068,18 +783,6 @@ extern void drm_pci_free(struct drm_device *dev, struct drm_dma_handle * dmah); ...@@ -1068,18 +783,6 @@ extern void drm_pci_free(struct drm_device *dev, struct drm_dma_handle * dmah);
extern void drm_sysfs_hotplug_event(struct drm_device *dev); extern void drm_sysfs_hotplug_event(struct drm_device *dev);
struct drm_device *drm_dev_alloc(struct drm_driver *driver,
struct device *parent);
int drm_dev_init(struct drm_device *dev,
struct drm_driver *driver,
struct device *parent);
void drm_dev_ref(struct drm_device *dev);
void drm_dev_unref(struct drm_device *dev);
int drm_dev_register(struct drm_device *dev, unsigned long flags);
void drm_dev_unregister(struct drm_device *dev);
struct drm_minor *drm_minor_acquire(unsigned int minor_id);
void drm_minor_release(struct drm_minor *minor);
/*@}*/ /*@}*/
......
include/drm/drm_drv.h 0 → 100644
View file @ 85e634bc
/*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
* Copyright (c) 2009-2010, Code Aurora Forum.
* Copyright 2016 Intel Corp.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef _DRM_DRV_H_
#define _DRM_DRV_H_
#include <linux/list.h>
#include <linux/irqreturn.h>
struct drm_device;
struct drm_file;
struct drm_gem_object;
struct drm_master;
struct drm_minor;
struct dma_buf_attachment;
struct drm_display_mode;
struct drm_mode_create_dumb;
/* driver capabilities and requirements mask */
#define DRIVER_USE_AGP 0x1
#define DRIVER_LEGACY 0x2
#define DRIVER_PCI_DMA 0x8
#define DRIVER_SG 0x10
#define DRIVER_HAVE_DMA 0x20
#define DRIVER_HAVE_IRQ 0x40
#define DRIVER_IRQ_SHARED 0x80
#define DRIVER_GEM 0x1000
#define DRIVER_MODESET 0x2000
#define DRIVER_PRIME 0x4000
#define DRIVER_RENDER 0x8000
#define DRIVER_ATOMIC 0x10000
#define DRIVER_KMS_LEGACY_CONTEXT 0x20000
/**
* struct drm_driver - DRM driver structure
*
* This structure represent the common code for a family of cards. There will
* one drm_device for each card present in this family. It contains lots of
* vfunc entries, and a pile of those probably should be moved to more
* appropriate places like &drm_mode_config_funcs or into a new operations
* structure for GEM drivers.
*/
struct drm_driver {
int (*load) (struct drm_device *, unsigned long flags);
int (*firstopen) (struct drm_device *);
int (*open) (struct drm_device *, struct drm_file *);
void (*preclose) (struct drm_device *, struct drm_file *file_priv);
void (*postclose) (struct drm_device *, struct drm_file *);
void (*lastclose) (struct drm_device *);
int (*unload) (struct drm_device *);
int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
int (*dma_quiescent) (struct drm_device *);
int (*context_dtor) (struct drm_device *dev, int context);
int (*set_busid)(struct drm_device *dev, struct drm_master *master);
/**
* get_vblank_counter - get raw hardware vblank counter
* @dev: DRM device
* @pipe: counter to fetch
*
* Driver callback for fetching a raw hardware vblank counter for @crtc.
* If a device doesn't have a hardware counter, the driver can simply
* use drm_vblank_no_hw_counter() function. The DRM core will account for
* missed vblank events while interrupts where disabled based on system
* timestamps.
*
* Wraparound handling and loss of events due to modesetting is dealt
* with in the DRM core code.
*
* RETURNS
* Raw vblank counter value.
*/
u32 (*get_vblank_counter) (struct drm_device *dev, unsigned int pipe);
/**
* enable_vblank - enable vblank interrupt events
* @dev: DRM device
* @pipe: which irq to enable
*
* Enable vblank interrupts for @crtc. If the device doesn't have
* a hardware vblank counter, the driver should use the
* drm_vblank_no_hw_counter() function that keeps a virtual counter.
*
* RETURNS
* Zero on success, appropriate errno if the given @crtc's vblank
* interrupt cannot be enabled.
*/
int (*enable_vblank) (struct drm_device *dev, unsigned int pipe);
/**
* disable_vblank - disable vblank interrupt events
* @dev: DRM device
* @pipe: which irq to enable
*
* Disable vblank interrupts for @crtc. If the device doesn't have
* a hardware vblank counter, the driver should use the
* drm_vblank_no_hw_counter() function that keeps a virtual counter.
*/
void (*disable_vblank) (struct drm_device *dev, unsigned int pipe);
/**
* Called by \c drm_device_is_agp. Typically used to determine if a
* card is really attached to AGP or not.
*
* \param dev DRM device handle
*
* \returns
* One of three values is returned depending on whether or not the
* card is absolutely \b not AGP (return of 0), absolutely \b is AGP
* (return of 1), or may or may not be AGP (return of 2).
*/
int (*device_is_agp) (struct drm_device *dev);
/**
* Called by vblank timestamping code.
*
* Return the current display scanout position from a crtc, and an
* optional accurate ktime_get timestamp of when position was measured.
*
* \param dev DRM device.
* \param pipe Id of the crtc to query.
* \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0).
* \param *vpos Target location for current vertical scanout position.
* \param *hpos Target location for current horizontal scanout position.
* \param *stime Target location for timestamp taken immediately before
* scanout position query. Can be NULL to skip timestamp.
* \param *etime Target location for timestamp taken immediately after
* scanout position query. Can be NULL to skip timestamp.
* \param mode Current display timings.
*
* Returns vpos as a positive number while in active scanout area.
* Returns vpos as a negative number inside vblank, counting the number
* of scanlines to go until end of vblank, e.g., -1 means "one scanline
* until start of active scanout / end of vblank."
*
* \return Flags, or'ed together as follows:
*
* DRM_SCANOUTPOS_VALID = Query successful.
* DRM_SCANOUTPOS_INVBL = Inside vblank.
* DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
* this flag means that returned position may be offset by a constant
* but unknown small number of scanlines wrt. real scanout position.
*
*/
int (*get_scanout_position) (struct drm_device *dev, unsigned int pipe,
unsigned int flags, int *vpos, int *hpos,
ktime_t *stime, ktime_t *etime,
const struct drm_display_mode *mode);
/**
* Called by \c drm_get_last_vbltimestamp. Should return a precise
* timestamp when the most recent VBLANK interval ended or will end.
*
* Specifically, the timestamp in @vblank_time should correspond as
* closely as possible to the time when the first video scanline of
* the video frame after the end of VBLANK will start scanning out,
* the time immediately after end of the VBLANK interval. If the
* @crtc is currently inside VBLANK, this will be a time in the future.
* If the @crtc is currently scanning out a frame, this will be the
* past start time of the current scanout. This is meant to adhere
* to the OpenML OML_sync_control extension specification.
*
* \param dev dev DRM device handle.
* \param pipe crtc for which timestamp should be returned.
* \param *max_error Maximum allowable timestamp error in nanoseconds.
* Implementation should strive to provide timestamp
* with an error of at most *max_error nanoseconds.
* Returns true upper bound on error for timestamp.
* \param *vblank_time Target location for returned vblank timestamp.
* \param flags 0 = Defaults, no special treatment needed.
* \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank
* irq handler. Some drivers need to apply some workarounds
* for gpu-specific vblank irq quirks if flag is set.
*
* \returns
* Zero if timestamping isn't supported in current display mode or a
* negative number on failure. A positive status code on success,
* which describes how the vblank_time timestamp was computed.
*/
int (*get_vblank_timestamp) (struct drm_device *dev, unsigned int pipe,
int *max_error,
struct timeval *vblank_time,
unsigned flags);
/* these have to be filled in */
irqreturn_t(*irq_handler) (int irq, void *arg);
void (*irq_preinstall) (struct drm_device *dev);
int (*irq_postinstall) (struct drm_device *dev);
void (*irq_uninstall) (struct drm_device *dev);
/* Master routines */
int (*master_create)(struct drm_device *dev, struct drm_master *master);
void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
/**
* master_set is called whenever the minor master is set.
* master_drop is called whenever the minor master is dropped.
*/
int (*master_set)(struct drm_device *dev, struct drm_file *file_priv,
bool from_open);
void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv);
int (*debugfs_init)(struct drm_minor *minor);
void (*debugfs_cleanup)(struct drm_minor *minor);
/**
* @gem_free_object: deconstructor for drm_gem_objects
*
* This is deprecated and should not be used by new drivers. Use
* @gem_free_object_unlocked instead.
*/
void (*gem_free_object) (struct drm_gem_object *obj);
/**
* @gem_free_object_unlocked: deconstructor for drm_gem_objects
*
* This is for drivers which are not encumbered with dev->struct_mutex
* legacy locking schemes. Use this hook instead of @gem_free_object.
*/
void (*gem_free_object_unlocked) (struct drm_gem_object *obj);
int (*gem_open_object) (struct drm_gem_object *, struct drm_file *);
void (*gem_close_object) (struct drm_gem_object *, struct drm_file *);
/**
* Hook for allocating the GEM object struct, for use by core
* helpers.
*/
struct drm_gem_object *(*gem_create_object)(struct drm_device *dev,
size_t size);
/* prime: */
/* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */
int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv,
uint32_t handle, uint32_t flags, int *prime_fd);
/* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */
int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv,
int prime_fd, uint32_t *handle);
/* export GEM -> dmabuf */
struct dma_buf * (*gem_prime_export)(struct drm_device *dev,
struct drm_gem_object *obj, int flags);
/* import dmabuf -> GEM */
struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev,
struct dma_buf *dma_buf);
/* low-level interface used by drm_gem_prime_{import,export} */
int (*gem_prime_pin)(struct drm_gem_object *obj);
void (*gem_prime_unpin)(struct drm_gem_object *obj);
struct reservation_object * (*gem_prime_res_obj)(
struct drm_gem_object *obj);
struct sg_table *(*gem_prime_get_sg_table)(struct drm_gem_object *obj);
struct drm_gem_object *(*gem_prime_import_sg_table)(
struct drm_device *dev,
struct dma_buf_attachment *attach,
struct sg_table *sgt);
void *(*gem_prime_vmap)(struct drm_gem_object *obj);
void (*gem_prime_vunmap)(struct drm_gem_object *obj, void *vaddr);
int (*gem_prime_mmap)(struct drm_gem_object *obj,
struct vm_area_struct *vma);
/* vga arb irq handler */
void (*vgaarb_irq)(struct drm_device *dev, bool state);
/* dumb alloc support */
int (*dumb_create)(struct drm_file *file_priv,
struct drm_device *dev,
struct drm_mode_create_dumb *args);
int (*dumb_map_offset)(struct drm_file *file_priv,
struct drm_device *dev, uint32_t handle,
uint64_t *offset);
int (*dumb_destroy)(struct drm_file *file_priv,
struct drm_device *dev,
uint32_t handle);
/* Driver private ops for this object */
const struct vm_operations_struct *gem_vm_ops;
int major;
int minor;
int patchlevel;
char *name;
char *desc;
char *date;
u32 driver_features;
int dev_priv_size;
const struct drm_ioctl_desc *ioctls;
int num_ioctls;
const struct file_operations *fops;
/* List of devices hanging off this driver with stealth attach. */
struct list_head legacy_dev_list;
};
extern __printf(6, 7)
void drm_dev_printk(const struct device *dev, const char *level,
unsigned int category, const char *function_name,
const char *prefix, const char *format, ...);
extern __printf(3, 4)
void drm_printk(const char *level, unsigned int category,
const char *format, ...);
extern unsigned int drm_debug;
int drm_dev_init(struct drm_device *dev,
struct drm_driver *driver,
struct device *parent);
struct drm_device *drm_dev_alloc(struct drm_driver *driver,
struct device *parent);
int drm_dev_register(struct drm_device *dev, unsigned long flags);
void drm_dev_unregister(struct drm_device *dev);
void drm_dev_ref(struct drm_device *dev);
void drm_dev_unref(struct drm_device *dev);
void drm_put_dev(struct drm_device *dev);
void drm_unplug_dev(struct drm_device *dev);
#endif
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