| 1 | /**
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| 2 | * \file xf86drm.h
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| 3 | * OS-independent header for DRM user-level library interface.
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| 4 | *
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| 5 | * \author Rickard E. (Rik) Faith <[email protected]>
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| 6 | */
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| 7 |
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| 8 | /*
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| 9 | * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
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| 10 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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| 11 | * All Rights Reserved.
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| 12 | *
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| 13 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 14 | * copy of this software and associated documentation files (the "Software"),
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| 15 | * to deal in the Software without restriction, including without limitation
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| 16 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 17 | * and/or sell copies of the Software, and to permit persons to whom the
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| 18 | * Software is furnished to do so, subject to the following conditions:
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| 19 | *
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| 20 | * The above copyright notice and this permission notice (including the next
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| 21 | * paragraph) shall be included in all copies or substantial portions of the
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| 22 | * Software.
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| 23 | *
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| 24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 25 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 26 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 27 | * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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| 28 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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| 29 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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| 30 | * DEALINGS IN THE SOFTWARE.
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| 31 | *
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| 32 | */
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| 33 |
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| 34 | #ifndef _XF86DRM_H_
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| 35 | #define _XF86DRM_H_
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| 36 |
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| 37 | #include <stdarg.h>
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| 38 | #include <sys/types.h>
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| 39 | #include <stdint.h>
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| 40 | #include <drm.h>
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| 41 |
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| 42 | /* Defaults, if nothing set in xf86config */
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| 43 | #define DRM_DEV_UID 0
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| 44 | #define DRM_DEV_GID 0
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| 45 | /* Default /dev/dri directory permissions 0755 */
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| 46 | #define DRM_DEV_DIRMODE \
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| 47 | (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH)
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| 48 | #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
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| 49 |
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| 50 | #define DRM_DIR_NAME "/dev/dri"
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| 51 | #define DRM_DEV_NAME "%s/card%d"
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| 52 | #define DRM_CONTROL_DEV_NAME "%s/controlD%d"
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| 53 | #define DRM_PROC_NAME "/proc/dri/" /* For backward Linux compatibility */
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| 54 |
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| 55 | #define DRM_ERR_NO_DEVICE (-1001)
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| 56 | #define DRM_ERR_NO_ACCESS (-1002)
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| 57 | #define DRM_ERR_NOT_ROOT (-1003)
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| 58 | #define DRM_ERR_INVALID (-1004)
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| 59 | #define DRM_ERR_NO_FD (-1005)
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| 60 |
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| 61 | #define DRM_AGP_NO_HANDLE 0
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| 62 |
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| 63 | typedef unsigned int drmSize, *drmSizePtr; /**< For mapped regions */
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| 64 | typedef void *drmAddress, **drmAddressPtr; /**< For mapped regions */
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| 65 |
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| 66 | typedef struct _drmServerInfo {
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| 67 | int (*debug_print)(const char *format, va_list ap);
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| 68 | int (*load_module)(const char *name);
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| 69 | void (*get_perms)(gid_t *, mode_t *);
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| 70 | } drmServerInfo, *drmServerInfoPtr;
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| 71 |
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| 72 | typedef struct drmHashEntry {
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| 73 | int fd;
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| 74 | void (*f)(int, void *, void *);
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| 75 | void *tagTable;
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| 76 | } drmHashEntry;
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| 77 |
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| 78 | extern int drmIoctl(int fd, unsigned long request, void *arg);
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| 79 | extern void *drmGetHashTable(void);
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| 80 | extern drmHashEntry *drmGetEntry(int fd);
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| 81 |
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| 82 | /**
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| 83 | * Driver version information.
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| 84 | *
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| 85 | * \sa drmGetVersion() and drmSetVersion().
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| 86 | */
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| 87 | typedef struct _drmVersion {
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| 88 | int version_major; /**< Major version */
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| 89 | int version_minor; /**< Minor version */
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| 90 | int version_patchlevel; /**< Patch level */
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| 91 | int name_len; /**< Length of name buffer */
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| 92 | char *name; /**< Name of driver */
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| 93 | int date_len; /**< Length of date buffer */
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| 94 | char *date; /**< User-space buffer to hold date */
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| 95 | int desc_len; /**< Length of desc buffer */
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| 96 | char *desc; /**< User-space buffer to hold desc */
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| 97 | } drmVersion, *drmVersionPtr;
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| 98 |
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| 99 | typedef struct _drmStats {
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| 100 | unsigned long count; /**< Number of data */
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| 101 | struct {
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| 102 | unsigned long value; /**< Value from kernel */
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| 103 | const char *long_format; /**< Suggested format for long_name */
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| 104 | const char *long_name; /**< Long name for value */
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| 105 | const char *rate_format; /**< Suggested format for rate_name */
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| 106 | const char *rate_name; /**< Short name for value per second */
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| 107 | int isvalue; /**< True if value (vs. counter) */
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| 108 | const char *mult_names; /**< Multiplier names (e.g., "KGM") */
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| 109 | int mult; /**< Multiplier value (e.g., 1024) */
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| 110 | int verbose; /**< Suggest only in verbose output */
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| 111 | } data[15];
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| 112 | } drmStatsT;
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| 113 |
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| 114 |
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| 115 | /* All of these enums *MUST* match with the
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| 116 | kernel implementation -- so do *NOT*
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| 117 | change them! (The drmlib implementation
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| 118 | will just copy the flags instead of
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| 119 | translating them.) */
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| 120 | typedef enum {
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| 121 | DRM_FRAME_BUFFER = 0, /**< WC, no caching, no core dump */
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| 122 | DRM_REGISTERS = 1, /**< no caching, no core dump */
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| 123 | DRM_SHM = 2, /**< shared, cached */
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| 124 | DRM_AGP = 3, /**< AGP/GART */
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| 125 | DRM_SCATTER_GATHER = 4, /**< PCI scatter/gather */
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| 126 | DRM_CONSISTENT = 5 /**< PCI consistent */
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| 127 | } drmMapType;
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| 128 |
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| 129 | typedef enum {
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| 130 | DRM_RESTRICTED = 0x0001, /**< Cannot be mapped to client-virtual */
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| 131 | DRM_READ_ONLY = 0x0002, /**< Read-only in client-virtual */
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| 132 | DRM_LOCKED = 0x0004, /**< Physical pages locked */
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| 133 | DRM_KERNEL = 0x0008, /**< Kernel requires access */
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| 134 | DRM_WRITE_COMBINING = 0x0010, /**< Use write-combining, if available */
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| 135 | DRM_CONTAINS_LOCK = 0x0020, /**< SHM page that contains lock */
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| 136 | DRM_REMOVABLE = 0x0040 /**< Removable mapping */
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| 137 | } drmMapFlags;
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| 138 |
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| 139 | /**
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| 140 | * \warning These values *MUST* match drm.h
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| 141 | */
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| 142 | typedef enum {
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| 143 | /** \name Flags for DMA buffer dispatch */
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| 144 | /*@{*/
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| 145 | DRM_DMA_BLOCK = 0x01, /**<
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| 146 | * Block until buffer dispatched.
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| 147 | *
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| 148 | * \note the buffer may not yet have been
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| 149 | * processed by the hardware -- getting a
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| 150 | * hardware lock with the hardware quiescent
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| 151 | * will ensure that the buffer has been
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| 152 | * processed.
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| 153 | */
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| 154 | DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */
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| 155 | DRM_DMA_PRIORITY = 0x04, /**< High priority dispatch */
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| 156 | /*@}*/
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| 157 |
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| 158 | /** \name Flags for DMA buffer request */
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| 159 | /*@{*/
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| 160 | DRM_DMA_WAIT = 0x10, /**< Wait for free buffers */
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| 161 | DRM_DMA_SMALLER_OK = 0x20, /**< Smaller-than-requested buffers OK */
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| 162 | DRM_DMA_LARGER_OK = 0x40 /**< Larger-than-requested buffers OK */
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| 163 | /*@}*/
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| 164 | } drmDMAFlags;
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| 165 |
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| 166 | typedef enum {
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| 167 | DRM_PAGE_ALIGN = 0x01,
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| 168 | DRM_AGP_BUFFER = 0x02,
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| 169 | DRM_SG_BUFFER = 0x04,
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| 170 | DRM_FB_BUFFER = 0x08,
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| 171 | DRM_PCI_BUFFER_RO = 0x10
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| 172 | } drmBufDescFlags;
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| 173 |
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| 174 | typedef enum {
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| 175 | DRM_LOCK_READY = 0x01, /**< Wait until hardware is ready for DMA */
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| 176 | DRM_LOCK_QUIESCENT = 0x02, /**< Wait until hardware quiescent */
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| 177 | DRM_LOCK_FLUSH = 0x04, /**< Flush this context's DMA queue first */
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| 178 | DRM_LOCK_FLUSH_ALL = 0x08, /**< Flush all DMA queues first */
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| 179 | /* These *HALT* flags aren't supported yet
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| 180 | -- they will be used to support the
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| 181 | full-screen DGA-like mode. */
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| 182 | DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */
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| 183 | DRM_HALT_CUR_QUEUES = 0x20 /**< Halt all current queues */
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| 184 | } drmLockFlags;
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| 185 |
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| 186 | typedef enum {
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| 187 | DRM_CONTEXT_PRESERVED = 0x01, /**< This context is preserved and
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| 188 | never swapped. */
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| 189 | DRM_CONTEXT_2DONLY = 0x02 /**< This context is for 2D rendering only. */
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| 190 | } drm_context_tFlags, *drm_context_tFlagsPtr;
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| 191 |
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| 192 | typedef struct _drmBufDesc {
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| 193 | int count; /**< Number of buffers of this size */
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| 194 | int size; /**< Size in bytes */
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| 195 | int low_mark; /**< Low water mark */
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| 196 | int high_mark; /**< High water mark */
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| 197 | } drmBufDesc, *drmBufDescPtr;
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| 198 |
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| 199 | typedef struct _drmBufInfo {
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| 200 | int count; /**< Number of buffers described in list */
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| 201 | drmBufDescPtr list; /**< List of buffer descriptions */
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| 202 | } drmBufInfo, *drmBufInfoPtr;
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| 203 |
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| 204 | typedef struct _drmBuf {
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| 205 | int idx; /**< Index into the master buffer list */
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| 206 | int total; /**< Buffer size */
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| 207 | int used; /**< Amount of buffer in use (for DMA) */
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| 208 | drmAddress address; /**< Address */
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| 209 | } drmBuf, *drmBufPtr;
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| 210 |
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| 211 | /**
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| 212 | * Buffer mapping information.
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| 213 | *
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| 214 | * Used by drmMapBufs() and drmUnmapBufs() to store information about the
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| 215 | * mapped buffers.
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| 216 | */
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| 217 | typedef struct _drmBufMap {
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| 218 | int count; /**< Number of buffers mapped */
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| 219 | drmBufPtr list; /**< Buffers */
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| 220 | } drmBufMap, *drmBufMapPtr;
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| 221 |
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| 222 | typedef struct _drmLock {
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| 223 | volatile unsigned int lock;
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| 224 | char padding[60];
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| 225 | /* This is big enough for most current (and future?) architectures:
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| 226 | DEC Alpha: 32 bytes
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| 227 | Intel Merced: ?
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| 228 | Intel P5/PPro/PII/PIII: 32 bytes
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| 229 | Intel StrongARM: 32 bytes
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| 230 | Intel i386/i486: 16 bytes
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| 231 | MIPS: 32 bytes (?)
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| 232 | Motorola 68k: 16 bytes
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| 233 | Motorola PowerPC: 32 bytes
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| 234 | Sun SPARC: 32 bytes
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| 235 | */
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| 236 | } drmLock, *drmLockPtr;
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| 237 |
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| 238 | /**
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| 239 | * Indices here refer to the offset into
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| 240 | * list in drmBufInfo
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| 241 | */
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| 242 | typedef struct _drmDMAReq {
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| 243 | drm_context_t context; /**< Context handle */
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| 244 | int send_count; /**< Number of buffers to send */
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| 245 | int *send_list; /**< List of handles to buffers */
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| 246 | int *send_sizes; /**< Lengths of data to send, in bytes */
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| 247 | drmDMAFlags flags; /**< Flags */
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| 248 | int request_count; /**< Number of buffers requested */
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| 249 | int request_size; /**< Desired size of buffers requested */
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| 250 | int *request_list; /**< Buffer information */
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| 251 | int *request_sizes; /**< Minimum acceptable sizes */
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| 252 | int granted_count; /**< Number of buffers granted at this size */
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| 253 | } drmDMAReq, *drmDMAReqPtr;
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| 254 |
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| 255 | typedef struct _drmRegion {
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| 256 | drm_handle_t handle;
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| 257 | unsigned int offset;
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| 258 | drmSize size;
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| 259 | drmAddress map;
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| 260 | } drmRegion, *drmRegionPtr;
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| 261 |
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| 262 | typedef struct _drmTextureRegion {
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| 263 | unsigned char next;
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| 264 | unsigned char prev;
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| 265 | unsigned char in_use;
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| 266 | unsigned char padding; /**< Explicitly pad this out */
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| 267 | unsigned int age;
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| 268 | } drmTextureRegion, *drmTextureRegionPtr;
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| 269 |
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| 270 |
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| 271 | typedef enum {
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| 272 | DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */
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| 273 | DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */
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| 274 | DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */
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| 275 | DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */
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| 276 | DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */
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| 277 | DRM_VBLANK_SIGNAL = 0x40000000 /* Send signal instead of blocking */
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| 278 | } drmVBlankSeqType;
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| 279 |
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| 280 | typedef struct _drmVBlankReq {
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| 281 | drmVBlankSeqType type;
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| 282 | unsigned int sequence;
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| 283 | unsigned long signal;
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| 284 | } drmVBlankReq, *drmVBlankReqPtr;
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| 285 |
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| 286 | typedef struct _drmVBlankReply {
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| 287 | drmVBlankSeqType type;
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| 288 | unsigned int sequence;
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| 289 | long tval_sec;
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| 290 | long tval_usec;
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| 291 | } drmVBlankReply, *drmVBlankReplyPtr;
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| 292 |
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| 293 | typedef union _drmVBlank {
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| 294 | drmVBlankReq request;
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| 295 | drmVBlankReply reply;
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| 296 | } drmVBlank, *drmVBlankPtr;
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| 297 |
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| 298 | typedef struct _drmSetVersion {
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| 299 | int drm_di_major;
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| 300 | int drm_di_minor;
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| 301 | int drm_dd_major;
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| 302 | int drm_dd_minor;
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| 303 | } drmSetVersion, *drmSetVersionPtr;
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| 304 |
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| 305 | #define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock)
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| 306 |
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| 307 | #define DRM_LOCK_HELD 0x80000000U /**< Hardware lock is held */
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| 308 | #define DRM_LOCK_CONT 0x40000000U /**< Hardware lock is contended */
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| 309 |
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| 310 | #if defined(__GNUC__) && (__GNUC__ >= 2)
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| 311 | # if defined(__i386) || defined(__AMD64__) || defined(__x86_64__) || defined(__amd64__)
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| 312 | /* Reflect changes here to drmP.h */
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| 313 | #define DRM_CAS(lock,old,new,__ret) \
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| 314 | do { \
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| 315 | int __dummy; /* Can't mark eax as clobbered */ \
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| 316 | __asm__ __volatile__( \
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| 317 | "lock ; cmpxchg %4,%1\n\t" \
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| 318 | "setnz %0" \
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| 319 | : "=d" (__ret), \
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| 320 | "=m" (__drm_dummy_lock(lock)), \
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| 321 | "=a" (__dummy) \
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| 322 | : "2" (old), \
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| 323 | "r" (new)); \
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| 324 | } while (0)
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| 325 |
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| 326 | #elif defined(__alpha__)
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| 327 |
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| 328 | #define DRM_CAS(lock, old, new, ret) \
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| 329 | do { \
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| 330 | int tmp, old32; \
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| 331 | __asm__ __volatile__( \
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| 332 | " addl $31, %5, %3\n" \
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| 333 | "1: ldl_l %0, %2\n" \
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| 334 | " cmpeq %0, %3, %1\n" \
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| 335 | " beq %1, 2f\n" \
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| 336 | " mov %4, %0\n" \
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| 337 | " stl_c %0, %2\n" \
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| 338 | " beq %0, 3f\n" \
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| 339 | " mb\n" \
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| 340 | "2: cmpeq %1, 0, %1\n" \
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| 341 | ".subsection 2\n" \
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| 342 | "3: br 1b\n" \
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| 343 | ".previous" \
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| 344 | : "=&r"(tmp), "=&r"(ret), \
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| 345 | "=m"(__drm_dummy_lock(lock)), \
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| 346 | "=&r"(old32) \
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| 347 | : "r"(new), "r"(old) \
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| 348 | : "memory"); \
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| 349 | } while (0)
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| 350 |
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| 351 | #elif defined(__sparc__)
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| 352 |
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| 353 | #define DRM_CAS(lock,old,new,__ret) \
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| 354 | do { register unsigned int __old __asm("o0"); \
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| 355 | register unsigned int __new __asm("o1"); \
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| 356 | register volatile unsigned int *__lock __asm("o2"); \
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| 357 | __old = old; \
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| 358 | __new = new; \
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| 359 | __lock = (volatile unsigned int *)lock; \
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| 360 | __asm__ __volatile__( \
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| 361 | /*"cas [%2], %3, %0"*/ \
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| 362 | ".word 0xd3e29008\n\t" \
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| 363 | /*"membar #StoreStore | #StoreLoad"*/ \
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| 364 | ".word 0x8143e00a" \
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| 365 | : "=&r" (__new) \
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| 366 | : "0" (__new), \
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| 367 | "r" (__lock), \
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| 368 | "r" (__old) \
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| 369 | : "memory"); \
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| 370 | __ret = (__new != __old); \
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| 371 | } while(0)
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| 372 |
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| 373 | #elif defined(__ia64__)
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| 374 |
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| 375 | #ifdef __INTEL_COMPILER
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| 376 | /* this currently generates bad code (missing stop bits)... */
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| 377 | #include <ia64intrin.h>
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| 378 |
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| 379 | #define DRM_CAS(lock,old,new,__ret) \
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| 380 | do { \
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| 381 | unsigned long __result, __old = (old) & 0xffffffff; \
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| 382 | __mf(); \
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| 383 | __result = _InterlockedCompareExchange_acq(&__drm_dummy_lock(lock), (new), __old);\
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| 384 | __ret = (__result) != (__old); \
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| 385 | /* __ret = (__sync_val_compare_and_swap(&__drm_dummy_lock(lock), \
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| 386 | (old), (new)) \
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| 387 | != (old)); */\
|
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| 388 | } while (0)
|
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| 389 |
|
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| 390 | #else
|
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| 391 | #define DRM_CAS(lock,old,new,__ret) \
|
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| 392 | do { \
|
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| 393 | unsigned int __result, __old = (old); \
|
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| 394 | __asm__ __volatile__( \
|
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| 395 | "mf\n" \
|
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| 396 | "mov ar.ccv=%2\n" \
|
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| 397 | ";;\n" \
|
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| 398 | "cmpxchg4.acq %0=%1,%3,ar.ccv" \
|
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| 399 | : "=r" (__result), "=m" (__drm_dummy_lock(lock)) \
|
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| 400 | : "r" ((unsigned long)__old), "r" (new) \
|
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| 401 | : "memory"); \
|
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| 402 | __ret = (__result) != (__old); \
|
|---|
| 403 | } while (0)
|
|---|
| 404 |
|
|---|
| 405 | #endif
|
|---|
| 406 |
|
|---|
| 407 | #elif defined(__powerpc__)
|
|---|
| 408 |
|
|---|
| 409 | #define DRM_CAS(lock,old,new,__ret) \
|
|---|
| 410 | do { \
|
|---|
| 411 | __asm__ __volatile__( \
|
|---|
| 412 | "sync;" \
|
|---|
| 413 | "0: lwarx %0,0,%1;" \
|
|---|
| 414 | " xor. %0,%3,%0;" \
|
|---|
| 415 | " bne 1f;" \
|
|---|
| 416 | " stwcx. %2,0,%1;" \
|
|---|
| 417 | " bne- 0b;" \
|
|---|
| 418 | "1: " \
|
|---|
| 419 | "sync;" \
|
|---|
| 420 | : "=&r"(__ret) \
|
|---|
| 421 | : "r"(lock), "r"(new), "r"(old) \
|
|---|
| 422 | : "cr0", "memory"); \
|
|---|
| 423 | } while (0)
|
|---|
| 424 |
|
|---|
| 425 | #endif /* architecture */
|
|---|
| 426 | #endif /* __GNUC__ >= 2 */
|
|---|
| 427 |
|
|---|
| 428 | #ifndef DRM_CAS
|
|---|
| 429 | #define DRM_CAS(lock,old,new,ret) do { ret=1; } while (0) /* FAST LOCK FAILS */
|
|---|
| 430 | #endif
|
|---|
| 431 |
|
|---|
| 432 | #if defined(__alpha__)
|
|---|
| 433 | #define DRM_CAS_RESULT(_result) long _result
|
|---|
| 434 | #elif defined(__powerpc__)
|
|---|
| 435 | #define DRM_CAS_RESULT(_result) int _result
|
|---|
| 436 | #else
|
|---|
| 437 | #define DRM_CAS_RESULT(_result) char _result
|
|---|
| 438 | #endif
|
|---|
| 439 |
|
|---|
| 440 | #define DRM_LIGHT_LOCK(fd,lock,context) \
|
|---|
| 441 | do { \
|
|---|
| 442 | DRM_CAS_RESULT(__ret); \
|
|---|
| 443 | DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \
|
|---|
| 444 | if (__ret) drmGetLock(fd,context,0); \
|
|---|
| 445 | } while(0)
|
|---|
| 446 |
|
|---|
| 447 | /* This one counts fast locks -- for
|
|---|
| 448 | benchmarking only. */
|
|---|
| 449 | #define DRM_LIGHT_LOCK_COUNT(fd,lock,context,count) \
|
|---|
| 450 | do { \
|
|---|
| 451 | DRM_CAS_RESULT(__ret); \
|
|---|
| 452 | DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \
|
|---|
| 453 | if (__ret) drmGetLock(fd,context,0); \
|
|---|
| 454 | else ++count; \
|
|---|
| 455 | } while(0)
|
|---|
| 456 |
|
|---|
| 457 | #define DRM_LOCK(fd,lock,context,flags) \
|
|---|
| 458 | do { \
|
|---|
| 459 | if (flags) drmGetLock(fd,context,flags); \
|
|---|
| 460 | else DRM_LIGHT_LOCK(fd,lock,context); \
|
|---|
| 461 | } while(0)
|
|---|
| 462 |
|
|---|
| 463 | #define DRM_UNLOCK(fd,lock,context) \
|
|---|
| 464 | do { \
|
|---|
| 465 | DRM_CAS_RESULT(__ret); \
|
|---|
| 466 | DRM_CAS(lock,DRM_LOCK_HELD|context,context,__ret); \
|
|---|
| 467 | if (__ret) drmUnlock(fd,context); \
|
|---|
| 468 | } while(0)
|
|---|
| 469 |
|
|---|
| 470 | /* Simple spin locks */
|
|---|
| 471 | #define DRM_SPINLOCK(spin,val) \
|
|---|
| 472 | do { \
|
|---|
| 473 | DRM_CAS_RESULT(__ret); \
|
|---|
| 474 | do { \
|
|---|
| 475 | DRM_CAS(spin,0,val,__ret); \
|
|---|
| 476 | if (__ret) while ((spin)->lock); \
|
|---|
| 477 | } while (__ret); \
|
|---|
| 478 | } while(0)
|
|---|
| 479 |
|
|---|
| 480 | #define DRM_SPINLOCK_TAKE(spin,val) \
|
|---|
| 481 | do { \
|
|---|
| 482 | DRM_CAS_RESULT(__ret); \
|
|---|
| 483 | int cur; \
|
|---|
| 484 | do { \
|
|---|
| 485 | cur = (*spin).lock; \
|
|---|
| 486 | DRM_CAS(spin,cur,val,__ret); \
|
|---|
| 487 | } while (__ret); \
|
|---|
| 488 | } while(0)
|
|---|
| 489 |
|
|---|
| 490 | #define DRM_SPINLOCK_COUNT(spin,val,count,__ret) \
|
|---|
| 491 | do { \
|
|---|
| 492 | int __i; \
|
|---|
| 493 | __ret = 1; \
|
|---|
| 494 | for (__i = 0; __ret && __i < count; __i++) { \
|
|---|
| 495 | DRM_CAS(spin,0,val,__ret); \
|
|---|
| 496 | if (__ret) for (;__i < count && (spin)->lock; __i++); \
|
|---|
| 497 | } \
|
|---|
| 498 | } while(0)
|
|---|
| 499 |
|
|---|
| 500 | #define DRM_SPINUNLOCK(spin,val) \
|
|---|
| 501 | do { \
|
|---|
| 502 | DRM_CAS_RESULT(__ret); \
|
|---|
| 503 | if ((*spin).lock == val) { /* else server stole lock */ \
|
|---|
| 504 | do { \
|
|---|
| 505 | DRM_CAS(spin,val,0,__ret); \
|
|---|
| 506 | } while (__ret); \
|
|---|
| 507 | } \
|
|---|
| 508 | } while(0)
|
|---|
| 509 |
|
|---|
| 510 |
|
|---|
| 511 |
|
|---|
| 512 | /* General user-level programmer's API: unprivileged */
|
|---|
| 513 | extern int drmAvailable(void);
|
|---|
| 514 | extern int drmOpen(const char *name, const char *busid);
|
|---|
| 515 | extern int drmOpenControl(int minor);
|
|---|
| 516 | extern int drmClose(int fd);
|
|---|
| 517 | extern drmVersionPtr drmGetVersion(int fd);
|
|---|
| 518 | extern drmVersionPtr drmGetLibVersion(int fd);
|
|---|
| 519 | extern void drmFreeVersion(drmVersionPtr);
|
|---|
| 520 | extern int drmGetMagic(int fd, drm_magic_t * magic);
|
|---|
| 521 | extern char *drmGetBusid(int fd);
|
|---|
| 522 | extern int drmGetInterruptFromBusID(int fd, int busnum, int devnum,
|
|---|
| 523 | int funcnum);
|
|---|
| 524 | extern int drmGetMap(int fd, int idx, drm_handle_t *offset,
|
|---|
| 525 | drmSize *size, drmMapType *type,
|
|---|
| 526 | drmMapFlags *flags, drm_handle_t *handle,
|
|---|
| 527 | int *mtrr);
|
|---|
| 528 | extern int drmGetClient(int fd, int idx, int *auth, int *pid,
|
|---|
| 529 | int *uid, unsigned long *magic,
|
|---|
| 530 | unsigned long *iocs);
|
|---|
| 531 | extern int drmGetStats(int fd, drmStatsT *stats);
|
|---|
| 532 | extern int drmSetInterfaceVersion(int fd, drmSetVersion *version);
|
|---|
| 533 | extern int drmCommandNone(int fd, unsigned long drmCommandIndex);
|
|---|
| 534 | extern int drmCommandRead(int fd, unsigned long drmCommandIndex,
|
|---|
| 535 | void *data, unsigned long size);
|
|---|
| 536 | extern int drmCommandWrite(int fd, unsigned long drmCommandIndex,
|
|---|
| 537 | void *data, unsigned long size);
|
|---|
| 538 | extern int drmCommandWriteRead(int fd, unsigned long drmCommandIndex,
|
|---|
| 539 | void *data, unsigned long size);
|
|---|
| 540 |
|
|---|
| 541 | /* General user-level programmer's API: X server (root) only */
|
|---|
| 542 | extern void drmFreeBusid(const char *busid);
|
|---|
| 543 | extern int drmSetBusid(int fd, const char *busid);
|
|---|
| 544 | extern int drmAuthMagic(int fd, drm_magic_t magic);
|
|---|
| 545 | extern int drmAddMap(int fd,
|
|---|
| 546 | drm_handle_t offset,
|
|---|
| 547 | drmSize size,
|
|---|
| 548 | drmMapType type,
|
|---|
| 549 | drmMapFlags flags,
|
|---|
| 550 | drm_handle_t * handle);
|
|---|
| 551 | extern int drmRmMap(int fd, drm_handle_t handle);
|
|---|
| 552 | extern int drmAddContextPrivateMapping(int fd, drm_context_t ctx_id,
|
|---|
| 553 | drm_handle_t handle);
|
|---|
| 554 |
|
|---|
| 555 | extern int drmAddBufs(int fd, int count, int size,
|
|---|
| 556 | drmBufDescFlags flags,
|
|---|
| 557 | int agp_offset);
|
|---|
| 558 | extern int drmMarkBufs(int fd, double low, double high);
|
|---|
| 559 | extern int drmCreateContext(int fd, drm_context_t * handle);
|
|---|
| 560 | extern int drmSetContextFlags(int fd, drm_context_t context,
|
|---|
| 561 | drm_context_tFlags flags);
|
|---|
| 562 | extern int drmGetContextFlags(int fd, drm_context_t context,
|
|---|
| 563 | drm_context_tFlagsPtr flags);
|
|---|
| 564 | extern int drmAddContextTag(int fd, drm_context_t context, void *tag);
|
|---|
| 565 | extern int drmDelContextTag(int fd, drm_context_t context);
|
|---|
| 566 | extern void *drmGetContextTag(int fd, drm_context_t context);
|
|---|
| 567 | extern drm_context_t * drmGetReservedContextList(int fd, int *count);
|
|---|
| 568 | extern void drmFreeReservedContextList(drm_context_t *);
|
|---|
| 569 | extern int drmSwitchToContext(int fd, drm_context_t context);
|
|---|
| 570 | extern int drmDestroyContext(int fd, drm_context_t handle);
|
|---|
| 571 | extern int drmCreateDrawable(int fd, drm_drawable_t * handle);
|
|---|
| 572 | extern int drmDestroyDrawable(int fd, drm_drawable_t handle);
|
|---|
| 573 | extern int drmUpdateDrawableInfo(int fd, drm_drawable_t handle,
|
|---|
| 574 | drm_drawable_info_type_t type,
|
|---|
| 575 | unsigned int num, void *data);
|
|---|
| 576 | extern int drmCtlInstHandler(int fd, int irq);
|
|---|
| 577 | extern int drmCtlUninstHandler(int fd);
|
|---|
| 578 |
|
|---|
| 579 | /* General user-level programmer's API: authenticated client and/or X */
|
|---|
| 580 | extern int drmMap(int fd,
|
|---|
| 581 | drm_handle_t handle,
|
|---|
| 582 | drmSize size,
|
|---|
| 583 | drmAddressPtr address);
|
|---|
| 584 | extern int drmUnmap(drmAddress address, drmSize size);
|
|---|
| 585 | extern drmBufInfoPtr drmGetBufInfo(int fd);
|
|---|
| 586 | extern drmBufMapPtr drmMapBufs(int fd);
|
|---|
| 587 | extern int drmUnmapBufs(drmBufMapPtr bufs);
|
|---|
| 588 | extern int drmDMA(int fd, drmDMAReqPtr request);
|
|---|
| 589 | extern int drmFreeBufs(int fd, int count, int *list);
|
|---|
| 590 | extern int drmGetLock(int fd,
|
|---|
| 591 | drm_context_t context,
|
|---|
| 592 | drmLockFlags flags);
|
|---|
| 593 | extern int drmUnlock(int fd, drm_context_t context);
|
|---|
| 594 | extern int drmFinish(int fd, int context, drmLockFlags flags);
|
|---|
| 595 | extern int drmGetContextPrivateMapping(int fd, drm_context_t ctx_id,
|
|---|
| 596 | drm_handle_t * handle);
|
|---|
| 597 |
|
|---|
| 598 | /* AGP/GART support: X server (root) only */
|
|---|
| 599 | extern int drmAgpAcquire(int fd);
|
|---|
| 600 | extern int drmAgpRelease(int fd);
|
|---|
| 601 | extern int drmAgpEnable(int fd, unsigned long mode);
|
|---|
| 602 | extern int drmAgpAlloc(int fd, unsigned long size,
|
|---|
| 603 | unsigned long type, unsigned long *address,
|
|---|
| 604 | drm_handle_t *handle);
|
|---|
| 605 | extern int drmAgpFree(int fd, drm_handle_t handle);
|
|---|
| 606 | extern int drmAgpBind(int fd, drm_handle_t handle,
|
|---|
| 607 | unsigned long offset);
|
|---|
| 608 | extern int drmAgpUnbind(int fd, drm_handle_t handle);
|
|---|
| 609 |
|
|---|
| 610 | /* AGP/GART info: authenticated client and/or X */
|
|---|
| 611 | extern int drmAgpVersionMajor(int fd);
|
|---|
| 612 | extern int drmAgpVersionMinor(int fd);
|
|---|
| 613 | extern unsigned long drmAgpGetMode(int fd);
|
|---|
| 614 | extern unsigned long drmAgpBase(int fd); /* Physical location */
|
|---|
| 615 | extern unsigned long drmAgpSize(int fd); /* Bytes */
|
|---|
| 616 | extern unsigned long drmAgpMemoryUsed(int fd);
|
|---|
| 617 | extern unsigned long drmAgpMemoryAvail(int fd);
|
|---|
| 618 | extern unsigned int drmAgpVendorId(int fd);
|
|---|
| 619 | extern unsigned int drmAgpDeviceId(int fd);
|
|---|
| 620 |
|
|---|
| 621 | /* PCI scatter/gather support: X server (root) only */
|
|---|
| 622 | extern int drmScatterGatherAlloc(int fd, unsigned long size,
|
|---|
| 623 | drm_handle_t *handle);
|
|---|
| 624 | extern int drmScatterGatherFree(int fd, drm_handle_t handle);
|
|---|
| 625 |
|
|---|
| 626 | extern int drmWaitVBlank(int fd, drmVBlankPtr vbl);
|
|---|
| 627 |
|
|---|
| 628 | /* Support routines */
|
|---|
| 629 | extern void drmSetServerInfo(drmServerInfoPtr info);
|
|---|
| 630 | extern int drmError(int err, const char *label);
|
|---|
| 631 | extern void *drmMalloc(int size);
|
|---|
| 632 | extern void drmFree(void *pt);
|
|---|
| 633 |
|
|---|
| 634 | /* Hash table routines */
|
|---|
| 635 | extern void *drmHashCreate(void);
|
|---|
| 636 | extern int drmHashDestroy(void *t);
|
|---|
| 637 | extern int drmHashLookup(void *t, unsigned long key, void **value);
|
|---|
| 638 | extern int drmHashInsert(void *t, unsigned long key, void *value);
|
|---|
| 639 | extern int drmHashDelete(void *t, unsigned long key);
|
|---|
| 640 | extern int drmHashFirst(void *t, unsigned long *key, void **value);
|
|---|
| 641 | extern int drmHashNext(void *t, unsigned long *key, void **value);
|
|---|
| 642 |
|
|---|
| 643 | /* PRNG routines */
|
|---|
| 644 | extern void *drmRandomCreate(unsigned long seed);
|
|---|
| 645 | extern int drmRandomDestroy(void *state);
|
|---|
| 646 | extern unsigned long drmRandom(void *state);
|
|---|
| 647 | extern double drmRandomDouble(void *state);
|
|---|
| 648 |
|
|---|
| 649 | /* Skip list routines */
|
|---|
| 650 |
|
|---|
| 651 | extern void *drmSLCreate(void);
|
|---|
| 652 | extern int drmSLDestroy(void *l);
|
|---|
| 653 | extern int drmSLLookup(void *l, unsigned long key, void **value);
|
|---|
| 654 | extern int drmSLInsert(void *l, unsigned long key, void *value);
|
|---|
| 655 | extern int drmSLDelete(void *l, unsigned long key);
|
|---|
| 656 | extern int drmSLNext(void *l, unsigned long *key, void **value);
|
|---|
| 657 | extern int drmSLFirst(void *l, unsigned long *key, void **value);
|
|---|
| 658 | extern void drmSLDump(void *l);
|
|---|
| 659 | extern int drmSLLookupNeighbors(void *l, unsigned long key,
|
|---|
| 660 | unsigned long *prev_key, void **prev_value,
|
|---|
| 661 | unsigned long *next_key, void **next_value);
|
|---|
| 662 |
|
|---|
| 663 | extern int drmOpenOnce(void *unused, const char *BusID, int *newlyopened);
|
|---|
| 664 | extern void drmCloseOnce(int fd);
|
|---|
| 665 | extern void drmMsg(const char *format, ...);
|
|---|
| 666 |
|
|---|
| 667 | extern int drmSetMaster(int fd);
|
|---|
| 668 | extern int drmDropMaster(int fd);
|
|---|
| 669 |
|
|---|
| 670 | #endif
|
|---|
