1d0d7f3ee4
locking, and the apparently unnecessary locking for -stable has been removed. This may fix issues with missed interrupts since April, which manifested themselves as slowdowns or hangs in radeon, in particular. Many cleanups also took place. In the shared code, there are improvements to r128 driver stability.
569 lines
18 KiB
C
569 lines
18 KiB
C
/* drmP.h -- Private header for Direct Rendering Manager -*- linux-c -*-
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* Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.com
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*
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* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
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* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Rickard E. (Rik) Faith <faith@valinux.com>
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* Gareth Hughes <gareth@valinux.com>
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*
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* $FreeBSD$
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*/
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#ifndef _DRM_P_H_
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#define _DRM_P_H_
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#if defined(_KERNEL) || defined(__KERNEL__)
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/* DRM template customization defaults
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*/
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#ifndef __HAVE_AGP
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#define __HAVE_AGP 0
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#endif
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#ifndef __HAVE_MTRR
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#define __HAVE_MTRR 0
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#endif
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#ifndef __HAVE_CTX_BITMAP
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#define __HAVE_CTX_BITMAP 0
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#endif
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#ifndef __HAVE_DMA
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#define __HAVE_DMA 0
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#endif
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#ifndef __HAVE_IRQ
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#define __HAVE_IRQ 0
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#endif
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#define DRM_DEBUG_CODE 0 /* Include debugging code (if > 1, then
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also include looping detection. */
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typedef struct drm_device drm_device_t;
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typedef struct drm_file drm_file_t;
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/* There's undoubtably more of this file to go into these OS dependent ones. */
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#ifdef __FreeBSD__
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#include "dev/drm/drm_os_freebsd.h"
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#elif defined __NetBSD__
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#include "dev/drm/drm_os_netbsd.h"
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#endif
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#include "dev/drm/drm.h"
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/* Begin the DRM... */
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#define DRM_HASH_SIZE 16 /* Size of key hash table */
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#define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
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#define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
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#define DRM_FLAG_DEBUG 0x01
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#define DRM_MEM_DMA 0
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#define DRM_MEM_SAREA 1
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#define DRM_MEM_DRIVER 2
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#define DRM_MEM_MAGIC 3
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#define DRM_MEM_IOCTLS 4
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#define DRM_MEM_MAPS 5
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#define DRM_MEM_BUFS 6
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#define DRM_MEM_SEGS 7
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#define DRM_MEM_PAGES 8
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#define DRM_MEM_FILES 9
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#define DRM_MEM_QUEUES 10
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#define DRM_MEM_CMDS 11
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#define DRM_MEM_MAPPINGS 12
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#define DRM_MEM_BUFLISTS 13
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#define DRM_MEM_AGPLISTS 14
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#define DRM_MEM_TOTALAGP 15
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#define DRM_MEM_BOUNDAGP 16
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#define DRM_MEM_CTXBITMAP 17
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#define DRM_MEM_STUB 18
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#define DRM_MEM_SGLISTS 19
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#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
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/* Mapping helper macros */
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#define DRM_IOREMAP(map, dev) \
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(map)->handle = DRM(ioremap)( dev, map )
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#define DRM_IOREMAP_NOCACHE(map, dev) \
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(map)->handle = DRM(ioremap_nocache)( dev, map )
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#define DRM_IOREMAPFREE(map, dev) \
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do { \
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if ( (map)->handle && (map)->size ) \
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DRM(ioremapfree)( map ); \
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} while (0)
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/* Internal types and structures */
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#define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
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#define DRM_MIN(a,b) ((a)<(b)?(a):(b))
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#define DRM_MAX(a,b) ((a)>(b)?(a):(b))
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#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
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(_map) = (_dev)->context_sareas[_ctx]; \
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} while(0)
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typedef struct drm_pci_id_list
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{
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int vendor;
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int device;
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long driver_private;
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char *name;
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} drm_pci_id_list_t;
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typedef struct drm_ioctl_desc {
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int (*func)(DRM_IOCTL_ARGS);
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int auth_needed;
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int root_only;
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} drm_ioctl_desc_t;
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typedef struct drm_magic_entry {
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drm_magic_t magic;
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struct drm_file *priv;
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struct drm_magic_entry *next;
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} drm_magic_entry_t;
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typedef struct drm_magic_head {
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struct drm_magic_entry *head;
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struct drm_magic_entry *tail;
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} drm_magic_head_t;
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typedef struct drm_buf {
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int idx; /* Index into master buflist */
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int total; /* Buffer size */
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int order; /* log-base-2(total) */
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int used; /* Amount of buffer in use (for DMA) */
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unsigned long offset; /* Byte offset (used internally) */
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void *address; /* Address of buffer */
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unsigned long bus_address; /* Bus address of buffer */
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struct drm_buf *next; /* Kernel-only: used for free list */
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__volatile__ int pending; /* On hardware DMA queue */
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DRMFILE filp; /* Unique identifier of holding process */
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int context; /* Kernel queue for this buffer */
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enum {
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DRM_LIST_NONE = 0,
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DRM_LIST_FREE = 1,
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DRM_LIST_WAIT = 2,
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DRM_LIST_PEND = 3,
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DRM_LIST_PRIO = 4,
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DRM_LIST_RECLAIM = 5
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} list; /* Which list we're on */
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int dev_priv_size; /* Size of buffer private stoarge */
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void *dev_private; /* Per-buffer private storage */
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} drm_buf_t;
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typedef struct drm_freelist {
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int initialized; /* Freelist in use */
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atomic_t count; /* Number of free buffers */
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drm_buf_t *next; /* End pointer */
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int low_mark; /* Low water mark */
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int high_mark; /* High water mark */
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} drm_freelist_t;
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typedef struct drm_buf_entry {
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int buf_size;
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int buf_count;
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drm_buf_t *buflist;
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int seg_count;
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int page_order;
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vm_offset_t *seglist;
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dma_addr_t *seglist_bus;
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drm_freelist_t freelist;
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} drm_buf_entry_t;
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typedef struct drm_hw_lock {
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__volatile__ unsigned int lock;
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char padding[60]; /* Pad to cache line */
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} drm_hw_lock_t;
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typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t;
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struct drm_file {
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TAILQ_ENTRY(drm_file) link;
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int authenticated;
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int minor;
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pid_t pid;
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uid_t uid;
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int refs;
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drm_magic_t magic;
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unsigned long ioctl_count;
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struct drm_device *devXX;
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};
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typedef struct drm_lock_data {
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drm_hw_lock_t *hw_lock; /* Hardware lock */
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DRMFILE filp; /* Unique identifier of holding process (NULL is kernel)*/
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int lock_queue; /* Queue of blocked processes */
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unsigned long lock_time; /* Time of last lock in jiffies */
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} drm_lock_data_t;
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/* This structure, in the drm_device_t, is always initialized while the device
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* is open. dev->dma_lock protects the incrementing of dev->buf_use, which
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* when set marks that no further bufs may be allocated until device teardown
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* occurs (when the last open of the device has closed). The high/low
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* watermarks of bufs are only touched by the X Server, and thus not
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* concurrently accessed, so no locking is needed.
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*/
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typedef struct drm_device_dma {
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drm_buf_entry_t bufs[DRM_MAX_ORDER+1];
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int buf_count;
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drm_buf_t **buflist; /* Vector of pointers info bufs */
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int seg_count;
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int page_count;
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unsigned long *pagelist;
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unsigned long byte_count;
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enum {
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_DRM_DMA_USE_AGP = 0x01,
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_DRM_DMA_USE_SG = 0x02
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} flags;
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/* DMA support */
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drm_buf_t *this_buffer; /* Buffer being sent */
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drm_buf_t *next_buffer; /* Selected buffer to send */
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} drm_device_dma_t;
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#if __REALLY_HAVE_AGP
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typedef struct drm_agp_mem {
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void *handle;
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unsigned long bound; /* address */
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int pages;
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struct drm_agp_mem *prev;
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struct drm_agp_mem *next;
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} drm_agp_mem_t;
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typedef struct drm_agp_head {
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device_t agpdev;
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struct agp_info info;
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const char *chipset;
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drm_agp_mem_t *memory;
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unsigned long mode;
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int enabled;
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int acquired;
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unsigned long base;
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int agp_mtrr;
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int cant_use_aperture;
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unsigned long page_mask;
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} drm_agp_head_t;
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#endif
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typedef struct drm_sg_mem {
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unsigned long handle;
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void *virtual;
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int pages;
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dma_addr_t *busaddr;
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} drm_sg_mem_t;
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typedef struct drm_local_map {
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unsigned long offset; /* Physical address (0 for SAREA)*/
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unsigned long size; /* Physical size (bytes) */
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drm_map_type_t type; /* Type of memory mapped */
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drm_map_flags_t flags; /* Flags */
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void *handle; /* User-space: "Handle" to pass to mmap */
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/* Kernel-space: kernel-virtual address */
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int mtrr; /* MTRR slot used */
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/* Private data */
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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} drm_local_map_t;
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typedef TAILQ_HEAD(drm_map_list, drm_map_list_entry) drm_map_list_t;
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typedef struct drm_map_list_entry {
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TAILQ_ENTRY(drm_map_list_entry) link;
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drm_local_map_t *map;
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} drm_map_list_entry_t;
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TAILQ_HEAD(drm_vbl_sig_list, drm_vbl_sig);
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typedef struct drm_vbl_sig {
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TAILQ_ENTRY(drm_vbl_sig) link;
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unsigned int sequence;
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int signo;
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int pid;
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} drm_vbl_sig_t;
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struct drm_device {
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#ifdef __NetBSD__
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struct device device; /* NetBSD's softc is an extension of struct device */
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#endif
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const char *name; /* Simple driver name */
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char *unique; /* Unique identifier: e.g., busid */
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int unique_len; /* Length of unique field */
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#ifdef __FreeBSD__
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device_t device; /* Device instance from newbus */
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#endif
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dev_t devnode; /* Device number for mknod */
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int flags; /* Flags to open(2) */
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/* Locks */
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#if defined(__FreeBSD__) && __FreeBSD_version > 500000
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#if __HAVE_DMA
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struct mtx dma_lock; /* protects dev->dma */
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#endif
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#if __HAVE_IRQ
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struct mtx irq_lock; /* protects irq condition checks */
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#endif
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struct mtx dev_lock; /* protects everything else */
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#endif
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/* Usage Counters */
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int open_count; /* Outstanding files open */
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int buf_use; /* Buffers in use -- cannot alloc */
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int buf_alloc; /* Buffer allocation in progress */
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/* Performance counters */
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unsigned long counters;
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drm_stat_type_t types[15];
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atomic_t counts[15];
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/* Authentication */
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drm_file_list_t files;
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drm_magic_head_t magiclist[DRM_HASH_SIZE];
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/* Linked list of mappable regions. Protected by dev_lock */
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drm_map_list_t *maplist;
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drm_local_map_t **context_sareas;
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int max_context;
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drm_lock_data_t lock; /* Information on hardware lock */
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/* DMA queues (contexts) */
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drm_device_dma_t *dma; /* Optional pointer for DMA support */
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/* Context support */
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int irq; /* Interrupt used by board */
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int irqrid; /* Interrupt used by board */
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#ifdef __FreeBSD__
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struct resource *irqr; /* Resource for interrupt used by board */
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#elif defined(__NetBSD__)
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struct pci_attach_args pa;
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pci_intr_handle_t ih;
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#endif
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void *irqh; /* Handle from bus_setup_intr */
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atomic_t context_flag; /* Context swapping flag */
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int last_context; /* Last current context */
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#if __FreeBSD_version >= 400005
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struct task task;
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#endif
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#if __HAVE_VBL_IRQ
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int vbl_queue; /* vbl wait channel */
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atomic_t vbl_received;
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#endif
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#ifdef __FreeBSD__
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struct sigio *buf_sigio; /* Processes waiting for SIGIO */
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#elif defined(__NetBSD__)
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pid_t buf_pgid;
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#endif
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/* Sysctl support */
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struct drm_sysctl_info *sysctl;
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#if __REALLY_HAVE_AGP
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drm_agp_head_t *agp;
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#endif
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drm_sg_mem_t *sg; /* Scatter gather memory */
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atomic_t *ctx_bitmap;
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void *dev_private;
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};
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extern int DRM(flags);
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/* Memory management support (drm_memory.h) */
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extern void DRM(mem_init)(void);
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extern void DRM(mem_uninit)(void);
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extern void *DRM(alloc)(size_t size, int area);
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extern void *DRM(calloc)(size_t nmemb, size_t size, int area);
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extern void *DRM(realloc)(void *oldpt, size_t oldsize, size_t size,
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int area);
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extern void DRM(free)(void *pt, size_t size, int area);
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extern void *DRM(ioremap)(drm_device_t *dev, drm_local_map_t *map);
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extern void DRM(ioremapfree)(drm_local_map_t *map);
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extern int DRM(mtrr_add)(unsigned long offset, size_t size, int flags);
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extern int DRM(mtrr_del)(unsigned long offset, size_t size, int flags);
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#if __REALLY_HAVE_AGP
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extern agp_memory *DRM(alloc_agp)(int pages, u32 type);
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extern int DRM(free_agp)(agp_memory *handle, int pages);
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extern int DRM(bind_agp)(agp_memory *handle, unsigned int start);
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extern int DRM(unbind_agp)(agp_memory *handle);
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#endif
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extern int DRM(context_switch)(drm_device_t *dev, int old, int new);
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extern int DRM(context_switch_complete)(drm_device_t *dev, int new);
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#if __HAVE_CTX_BITMAP
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extern int DRM(ctxbitmap_init)( drm_device_t *dev );
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extern void DRM(ctxbitmap_cleanup)( drm_device_t *dev );
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extern void DRM(ctxbitmap_free)( drm_device_t *dev, int ctx_handle );
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extern int DRM(ctxbitmap_next)( drm_device_t *dev );
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#endif
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/* Locking IOCTL support (drm_lock.h) */
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extern int DRM(lock_take)(__volatile__ unsigned int *lock,
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unsigned int context);
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extern int DRM(lock_transfer)(drm_device_t *dev,
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__volatile__ unsigned int *lock,
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unsigned int context);
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extern int DRM(lock_free)(drm_device_t *dev,
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__volatile__ unsigned int *lock,
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unsigned int context);
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/* Buffer management support (drm_bufs.h) */
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extern int DRM(order)( unsigned long size );
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#if __HAVE_DMA
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/* DMA support (drm_dma.h) */
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extern int DRM(dma_setup)(drm_device_t *dev);
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extern void DRM(dma_takedown)(drm_device_t *dev);
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extern void DRM(free_buffer)(drm_device_t *dev, drm_buf_t *buf);
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extern void DRM(reclaim_buffers)(drm_device_t *dev, DRMFILE filp);
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#endif
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#if __HAVE_IRQ
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/* IRQ support (drm_irq.h) */
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extern int DRM(irq_install)( drm_device_t *dev, int irq );
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extern int DRM(irq_uninstall)( drm_device_t *dev );
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extern irqreturn_t DRM(irq_handler)( DRM_IRQ_ARGS );
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extern void DRM(driver_irq_preinstall)( drm_device_t *dev );
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extern void DRM(driver_irq_postinstall)( drm_device_t *dev );
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extern void DRM(driver_irq_uninstall)( drm_device_t *dev );
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#if __HAVE_IRQ_BH
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extern void DRM(irq_immediate_bh)( DRM_TASKQUEUE_ARGS );
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#endif
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#endif
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#if __HAVE_VBL_IRQ
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extern int DRM(vblank_wait)(drm_device_t *dev, unsigned int *vbl_seq);
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extern void DRM(vbl_send_signals)( drm_device_t *dev );
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#endif
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#if __REALLY_HAVE_AGP
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/* AGP/GART support (drm_agpsupport.h) */
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extern drm_agp_head_t *DRM(agp_init)(void);
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extern void DRM(agp_uninit)(void);
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extern void DRM(agp_do_release)(void);
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extern agp_memory *DRM(agp_allocate_memory)(size_t pages, u32 type);
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extern int DRM(agp_free_memory)(agp_memory *handle);
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extern int DRM(agp_bind_memory)(agp_memory *handle, off_t start);
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extern int DRM(agp_unbind_memory)(agp_memory *handle);
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#endif
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#if __HAVE_SG
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/* Scatter Gather Support (drm_scatter.h) */
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extern void DRM(sg_cleanup)(drm_sg_mem_t *entry);
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#endif
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#if __REALLY_HAVE_SG
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/* ATI PCIGART support (ati_pcigart.h) */
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extern int DRM(ati_pcigart_init)(drm_device_t *dev,
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unsigned long *addr,
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dma_addr_t *bus_addr);
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extern int DRM(ati_pcigart_cleanup)(drm_device_t *dev,
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unsigned long addr,
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dma_addr_t bus_addr);
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#endif
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/* Locking IOCTL support (drm_drv.h) */
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extern int DRM(lock)(DRM_IOCTL_ARGS);
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extern int DRM(unlock)(DRM_IOCTL_ARGS);
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extern int DRM(version)( DRM_IOCTL_ARGS );
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extern int DRM(setversion)( DRM_IOCTL_ARGS );
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/* Misc. IOCTL support (drm_ioctl.h) */
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extern int DRM(irq_busid)(DRM_IOCTL_ARGS);
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extern int DRM(getunique)(DRM_IOCTL_ARGS);
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extern int DRM(setunique)(DRM_IOCTL_ARGS);
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extern int DRM(getmap)(DRM_IOCTL_ARGS);
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extern int DRM(getclient)(DRM_IOCTL_ARGS);
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extern int DRM(getstats)(DRM_IOCTL_ARGS);
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extern int DRM(noop)(DRM_IOCTL_ARGS);
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/* Context IOCTL support (drm_context.h) */
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extern int DRM(resctx)(DRM_IOCTL_ARGS);
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extern int DRM(addctx)(DRM_IOCTL_ARGS);
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extern int DRM(modctx)(DRM_IOCTL_ARGS);
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extern int DRM(getctx)(DRM_IOCTL_ARGS);
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extern int DRM(switchctx)(DRM_IOCTL_ARGS);
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extern int DRM(newctx)(DRM_IOCTL_ARGS);
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extern int DRM(rmctx)(DRM_IOCTL_ARGS);
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extern int DRM(setsareactx)(DRM_IOCTL_ARGS);
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extern int DRM(getsareactx)(DRM_IOCTL_ARGS);
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/* Drawable IOCTL support (drm_drawable.h) */
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extern int DRM(adddraw)(DRM_IOCTL_ARGS);
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extern int DRM(rmdraw)(DRM_IOCTL_ARGS);
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/* Authentication IOCTL support (drm_auth.h) */
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extern int DRM(getmagic)(DRM_IOCTL_ARGS);
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extern int DRM(authmagic)(DRM_IOCTL_ARGS);
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/* Buffer management support (drm_bufs.h) */
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extern int DRM(addmap)(DRM_IOCTL_ARGS);
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extern int DRM(rmmap)(DRM_IOCTL_ARGS);
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#if __HAVE_DMA
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extern int DRM(addbufs)(DRM_IOCTL_ARGS);
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extern int DRM(infobufs)(DRM_IOCTL_ARGS);
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extern int DRM(markbufs)(DRM_IOCTL_ARGS);
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extern int DRM(freebufs)(DRM_IOCTL_ARGS);
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extern int DRM(mapbufs)(DRM_IOCTL_ARGS);
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#endif
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/* IRQ support (drm_irq.h) */
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#if __HAVE_IRQ || __HAVE_DMA
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extern int DRM(control)(DRM_IOCTL_ARGS);
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#endif
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#if __HAVE_VBL_IRQ
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extern int DRM(wait_vblank)(DRM_IOCTL_ARGS);
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#endif
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/* AGP/GART support (drm_agpsupport.h) */
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#if __REALLY_HAVE_AGP
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extern int DRM(agp_acquire)(DRM_IOCTL_ARGS);
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extern int DRM(agp_release)(DRM_IOCTL_ARGS);
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extern int DRM(agp_enable)(DRM_IOCTL_ARGS);
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extern int DRM(agp_info)(DRM_IOCTL_ARGS);
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extern int DRM(agp_alloc)(DRM_IOCTL_ARGS);
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extern int DRM(agp_free)(DRM_IOCTL_ARGS);
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extern int DRM(agp_unbind)(DRM_IOCTL_ARGS);
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extern int DRM(agp_bind)(DRM_IOCTL_ARGS);
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#endif
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/* Scatter Gather Support (drm_scatter.h) */
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#if __HAVE_SG
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extern int DRM(sg_alloc)(DRM_IOCTL_ARGS);
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extern int DRM(sg_free)(DRM_IOCTL_ARGS);
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#endif
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/* consistent PCI memory functions (drm_pci.h) */
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extern void *DRM(pci_alloc)(drm_device_t *dev, size_t size,
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size_t align, dma_addr_t maxaddr,
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|
dma_addr_t *busaddr);
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extern void DRM(pci_free)(drm_device_t *dev, size_t size,
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void *vaddr, dma_addr_t busaddr);
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#endif /* __KERNEL__ */
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#endif /* _DRM_P_H_ */
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