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drm/doc: Polish kerneldoc for drm_device.h 

- Move all the legacy gunk at the bottom, and exclude it from
  kerneldoc.
- Documentation for the remaining bits.

v2: Fix typo (Sam).

Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190111164048.29067-5-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter 2019-01-11 17:40:48 +01:00
parent 9cd070a6d1
commit 3214a16684
2 changed files with 88 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/gpu/drm-internals.rst
View File

@ -143,6 +143,9 @@ Device Instance and Driver Handling
.. kernel-doc:: drivers/gpu/drm/drm_drv.c
:doc: driver instance overview
.. kernel-doc:: include/drm/drm_device.h
:internal:
.. kernel-doc:: include/drm/drm_drv.h
:internal:

150
include/drm/drm_device.h
View File

@ -69,7 +69,13 @@ struct drm_device {
/** @driver: DRM driver managing the device */
struct drm_driver *driver;
/** @dev_private: DRM driver private data */
/**
* @dev_private:
*
* DRM driver private data. Instead of using this pointer it is
* recommended that drivers use drm_dev_init() and embed struct
* &drm_device in their larger per-device structure.
*/
void *dev_private;
/** @primary: Primary node */
@ -78,6 +84,11 @@ struct drm_device {
/** @render: Render node */
struct drm_minor *render;
/**
* @registered:
*
* Internally used by drm_dev_register() and drm_connector_register().
*/
bool registered;
/**
@ -134,16 +145,13 @@ struct drm_device {
*/
int open_count;
/** @buf_lock: Lock for &buf_use and a few other things. */
spinlock_t buf_lock;
/** @buf_use: Usage counter for buffers in use -- cannot alloc */
int buf_use;
/** @buf_alloc: Buffer allocation in progress */
atomic_t buf_alloc;
/** @filelist_mutex: Protects @filelist. */
struct mutex filelist_mutex;
/**
* @filelist:
*
* List of userspace clients, linked through &drm_file.lhead.
*/
struct list_head filelist;
/**
@ -168,46 +176,6 @@ struct drm_device {
*/
struct list_head clientlist;
/** @maplist: Memory management - linked list of regions */
struct list_head maplist;
/** @map_hash: Memory management - user token hash table for maps */
struct drm_open_hash map_hash;
/**
* @ctxlist:
* Context handle management - linked list of context handles
*/
struct list_head ctxlist;
/**
* @ctxlist_mutex:
*
* Context handle management - mutex for &ctxlist
*/
struct mutex ctxlist_mutex;
/**
* @ctx_idr:
* Context handle management
*/
struct idr ctx_idr;
/**
* @vmalist:
* Context handle management - list of vmas (for debugging)
*/
struct list_head vmalist;
/** @dma: Optional pointer for DMA support */
struct drm_device_dma *dma;
/** @context_flag: Context swapping flag */
__volatile__ long context_flag;
/** @last_context: Last current context */
int last_context;
/**
* @irq_enabled:
*
@ -216,6 +184,10 @@ struct drm_device {
* to true manually.
*/
bool irq_enabled;
/**
* @irq: Used by the drm_irq_install() and drm_irq_unistall() helpers.
*/
int irq;
/**
@ -249,6 +221,10 @@ struct drm_device {
* Protects vblank count and time updates during vblank enable/disable
*/
spinlock_t vblank_time_lock;
/**
* @vbl_lock: Top-level vblank references lock, wraps the low-level
* @vblank_time_lock.
*/
spinlock_t vbl_lock;
/**
@ -264,14 +240,19 @@ struct drm_device {
* races and imprecision over longer time periods, hence exposing a
* hardware vblank counter is always recommended.
*
* If non-zeor, &drm_crtc_funcs.get_vblank_counter must be set.
* If non-zero, &drm_crtc_funcs.get_vblank_counter must be set.
*/
/** @max_vblank_count: Size of vblank counter register */
u32 max_vblank_count;
/** @vblank_event_list: List of vblank events */
struct list_head vblank_event_list;
/**
* @event_lock:
*
* Protects @vblank_event_list and event delivery in
* general. See drm_send_event() and drm_send_event_locked().
*/
spinlock_t event_lock;
/** @agp: AGP data */
@ -281,23 +262,12 @@ struct drm_device {
struct pci_dev *pdev;
#ifdef __alpha__
/** @hose: PCI hose, only used on ALPHA platforms. */
struct pci_controller *hose;
#endif
/** @sg: Scatter gather memory */
struct drm_sg_mem *sg;
/** @num_crtcs: Number of CRTCs on this device */
unsigned int num_crtcs;
struct {
int context;
struct drm_hw_lock *lock;
} sigdata;
struct drm_local_map *agp_buffer_map;
unsigned int agp_buffer_token;
/** @mode_config: Current mode config */
struct drm_mode_config mode_config;
@ -327,6 +297,56 @@ struct drm_device {
* Set by drm_fb_helper_init() and cleared by drm_fb_helper_fini().
*/
struct drm_fb_helper *fb_helper;
/* Everything below here is for legacy driver, never use! */
/* private: */
/* Context handle management - linked list of context handles */
struct list_head ctxlist;
/* Context handle management - mutex for &ctxlist */
struct mutex ctxlist_mutex;
/* Context handle management */
struct idr ctx_idr;
/* Memory management - linked list of regions */
struct list_head maplist;
/* Memory management - user token hash table for maps */
struct drm_open_hash map_hash;
/* Context handle management - list of vmas (for debugging) */
struct list_head vmalist;
/* Optional pointer for DMA support */
struct drm_device_dma *dma;
/* Context swapping flag */
__volatile__ long context_flag;
/* Last current context */
int last_context;
/* Lock for &buf_use and a few other things. */
spinlock_t buf_lock;
/* Usage counter for buffers in use -- cannot alloc */
int buf_use;
/* Buffer allocation in progress */
atomic_t buf_alloc;
struct {
int context;
struct drm_hw_lock *lock;
} sigdata;
struct drm_local_map *agp_buffer_map;
unsigned int agp_buffer_token;
/* Scatter gather memory */
struct drm_sg_mem *sg;
};
#endif