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 "brw_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    /** Bytes of aperture usage beyond which execbuf is likely to fail. */
  54    uint64_t aperture_threshold;
  55
  56    bool no_hw;
  57    bool hw_has_swizzling;
  58    bool has_exec_fence; /**< I915_PARAM_HAS_EXEC_FENCE */
  59
  60    int hw_has_timestamp;
  61
  62    /**
  63     * Does the kernel support context reset notifications?
  64     */
  65    bool has_context_reset_notification;
  66
  67    /**
  68     * Does the kernel support features such as pipelined register access to
  69     * specific registers?
  70     */
  71    unsigned kernel_features;
  72 #define KERNEL_ALLOWS_SOL_OFFSET_WRITES             (1<<0)
  73 #define KERNEL_ALLOWS_PREDICATE_WRITES              (1<<1)
  74 #define KERNEL_ALLOWS_MI_MATH_AND_LRR               (1<<2)
  75 #define KERNEL_ALLOWS_HSW_SCRATCH1_AND_ROW_CHICKEN3 (1<<3)
  76 #define KERNEL_ALLOWS_COMPUTE_DISPATCH              (1<<4)
  77
  78    drm_bacon_bufmgr *bufmgr;
  79
  80    /**
  81     * A unique ID for shader programs.
  82     */
  83    unsigned program_id;
  84
  85    int winsys_msaa_samples_override;
  86
  87    struct brw_compiler *compiler;
  88
  89    /**
  90    * Configuration cache with default values for all contexts
  91    */
  92    driOptionCache optionCache;
  93
  94    /**
  95     * Version of the command parser reported by the
  96     * I915_PARAM_CMD_PARSER_VERSION parameter
  97     */
  98    int cmd_parser_version;
  99
 100    /**
 101     * Number of subslices reported by the I915_PARAM_SUBSLICE_TOTAL parameter
 102     */
 103    int subslice_total;
 104
 105    /**
 106     * Number of EUs reported by the I915_PARAM_EU_TOTAL parameter
 107     */
 108    int eu_total;
 109 };
 110
 111 extern void intelDestroyContext(__DRIcontext * driContextPriv);
 112
 113 extern GLboolean intelUnbindContext(__DRIcontext * driContextPriv);
 114
 115 PUBLIC const __DRIextension **__driDriverGetExtensions_i965(void);
 116 extern const __DRI2fenceExtension intelFenceExtension;
 117
 118 extern GLboolean
 119 intelMakeCurrent(__DRIcontext * driContextPriv,
 120                  __DRIdrawable * driDrawPriv,
 121                  __DRIdrawable * driReadPriv);
 122
 123 double get_time(void);
 124
 125 const int*
 126 intel_supported_msaa_modes(const struct intel_screen  *screen);
 127
 128 static inline bool
 129 can_do_pipelined_register_writes(const struct intel_screen *screen)
 130 {
 131    return screen->kernel_features & KERNEL_ALLOWS_SOL_OFFSET_WRITES;
 132 }
 133
 134 static inline bool
 135 can_do_hsw_l3_atomics(const struct intel_screen *screen)
 136 {
 137    return screen->kernel_features & KERNEL_ALLOWS_HSW_SCRATCH1_AND_ROW_CHICKEN3;
 138 }
 139
 140 static inline bool
 141 can_do_mi_math_and_lrr(const struct intel_screen *screen)
 142 {
 143    return screen->kernel_features & KERNEL_ALLOWS_MI_MATH_AND_LRR;
 144 }
 145
 146 static inline bool
 147 can_do_compute_dispatch(const struct intel_screen *screen)
 148 {
 149    return screen->kernel_features & KERNEL_ALLOWS_COMPUTE_DISPATCH;
 150 }
 151
 152 static inline bool
 153 can_do_predicate_writes(const struct intel_screen *screen)
 154 {
 155    return screen->kernel_features & KERNEL_ALLOWS_PREDICATE_WRITES;
 156 }
 157
 158 #ifdef __cplusplus
 159 }
 160 #endif
 161
 162 #endif