src/mesa/drivers/dri/i965/intel_screen.h

   1 /*
   2  * Copyright 2003 VMware, Inc.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial portions
  15  * of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26 #ifndef _INTEL_INIT_H_
  27 #define _INTEL_INIT_H_
  28
  29 #include <stdbool.h>
  30 #include <sys/time.h>
  31
  32 #include <GL/internal/dri_interface.h>
  33
  34 #include "dri_util.h"
  35 #include "intel_bufmgr.h"
  36 #include "common/gen_device_info.h"
  37 #include "i915_drm.h"
  38 #include "xmlconfig.h"
  39
  40 #ifdef __cplusplus
  41 extern "C" {
  42 #endif
  43
  44 struct intel_screen
  45 {
  46    int deviceID;
  47    struct gen_device_info devinfo;
  48
  49    __DRIscreen *driScrnPriv;
  50
  51    uint64_t max_gtt_map_object_size;
  52
  53    bool no_hw;
  54    bool hw_has_swizzling;
  55    bool has_exec_fence; /**< I915_PARAM_HAS_EXEC_FENCE */
  56
  57    int hw_has_timestamp;
  58
  59    /**
  60     * Does the kernel support context reset notifications?
  61     */
  62    bool has_context_reset_notification;
  63
  64    /**
  65     * Does the kernel support features such as pipelined register access to
  66     * specific registers?
  67     */
  68    unsigned kernel_features;
  69 #define KERNEL_ALLOWS_SOL_OFFSET_WRITES             (1<<0)
  70 #define KERNEL_ALLOWS_PREDICATE_WRITES              (1<<1)
  71 #define KERNEL_ALLOWS_MI_MATH_AND_LRR               (1<<2)
  72 #define KERNEL_ALLOWS_HSW_SCRATCH1_AND_ROW_CHICKEN3 (1<<3)
  73 #define KERNEL_ALLOWS_COMPUTE_DISPATCH              (1<<4)
  74
  75    dri_bufmgr *bufmgr;
  76
  77    /**
  78     * A unique ID for shader programs.
  79     */
  80    unsigned program_id;
  81
  82    int winsys_msaa_samples_override;
  83
  84    struct brw_compiler *compiler;
  85
  86    /**
  87    * Configuration cache with default values for all contexts
  88    */
  89    driOptionCache optionCache;
  90
  91    /**
  92     * Version of the command parser reported by the
  93     * I915_PARAM_CMD_PARSER_VERSION parameter
  94     */
  95    int cmd_parser_version;
  96
  97    /**
  98     * Number of subslices reported by the I915_PARAM_SUBSLICE_TOTAL parameter
  99     */
 100    int subslice_total;
 101
 102    /**
 103     * Number of EUs reported by the I915_PARAM_EU_TOTAL parameter
 104     */
 105    int eu_total;
 106 };
 107
 108 extern void intelDestroyContext(__DRIcontext * driContextPriv);
 109
 110 extern GLboolean intelUnbindContext(__DRIcontext * driContextPriv);
 111
 112 PUBLIC const __DRIextension **__driDriverGetExtensions_i965(void);
 113 extern const __DRI2fenceExtension intelFenceExtension;
 114
 115 extern GLboolean
 116 intelMakeCurrent(__DRIcontext * driContextPriv,
 117                  __DRIdrawable * driDrawPriv,
 118                  __DRIdrawable * driReadPriv);
 119
 120 double get_time(void);
 121
 122 const int*
 123 intel_supported_msaa_modes(const struct intel_screen  *screen);
 124
 125 static inline bool
 126 can_do_pipelined_register_writes(const struct intel_screen *screen)
 127 {
 128    return screen->kernel_features & KERNEL_ALLOWS_SOL_OFFSET_WRITES;
 129 }
 130
 131 static inline bool
 132 can_do_hsw_l3_atomics(const struct intel_screen *screen)
 133 {
 134    return screen->kernel_features & KERNEL_ALLOWS_HSW_SCRATCH1_AND_ROW_CHICKEN3;
 135 }
 136
 137 static inline bool
 138 can_do_mi_math_and_lrr(const struct intel_screen *screen)
 139 {
 140    return screen->kernel_features & KERNEL_ALLOWS_MI_MATH_AND_LRR;
 141 }
 142
 143 static inline bool
 144 can_do_compute_dispatch(const struct intel_screen *screen)
 145 {
 146    return screen->kernel_features & KERNEL_ALLOWS_COMPUTE_DISPATCH;
 147 }
 148
 149 static inline bool
 150 can_do_predicate_writes(const struct intel_screen *screen)
 151 {
 152    return screen->kernel_features & KERNEL_ALLOWS_PREDICATE_WRITES;
 153 }
 154
 155 #ifdef __cplusplus
 156 }
 157 #endif
 158
 159 #endif