src/gallium/winsys/drm/radeon/core/radeon_r300.c

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22
  23 #include "radeon_r300.h"
  24
  25 static boolean radeon_r300_check_cs(struct r300_winsys* winsys, int size)
  26 {
  27     /* XXX check size here, lazy ass! */
  28     /* XXX also validate buffers */
  29     return TRUE;
  30 }
  31
  32 static void radeon_r300_begin_cs(struct r300_winsys* winsys,
  33                                  int size,
  34                                  const char* file,
  35                                  const char* function,
  36                                  int line)
  37 {
  38     radeon_cs_begin(winsys->cs, size, file, function, line);
  39 }
  40
  41 static void radeon_r300_write_cs_dword(struct r300_winsys* winsys,
  42                                        uint32_t dword)
  43 {
  44     radeon_cs_write_dword(winsys->cs, dword);
  45 }
  46
  47 static void radeon_r300_write_cs_reloc(struct r300_winsys* winsys,
  48                                        struct pipe_buffer* pbuffer,
  49                                        uint32_t rd,
  50                                        uint32_t wd,
  51                                        uint32_t flags)
  52 {
  53     radeon_cs_write_reloc(winsys->cs,
  54             ((struct radeon_pipe_buffer*)pbuffer)->bo, rd, wd, flags);
  55 }
  56
  57 static void radeon_r300_end_cs(struct r300_winsys* winsys,
  58                                const char* file,
  59                                const char* function,
  60                                int line)
  61 {
  62     radeon_cs_end(winsys->cs, file, function, line);
  63 }
  64
  65 static void radeon_r300_flush_cs(struct r300_winsys* winsys)
  66 {
  67     int retval = 0;
  68
  69     retval = radeon_cs_emit(winsys->cs);
  70     if (retval) {
  71         debug_printf("radeon: Bad CS, dumping...\n");
  72         radeon_cs_print(winsys->cs, stderr);
  73     }
  74     radeon_cs_erase(winsys->cs);
  75 }
  76
  77 /* Helper function to do the ioctls needed for setup and init. */
  78 static void do_ioctls(struct r300_winsys* winsys, int fd)
  79 {
  80     drm_radeon_getparam_t gp;
  81     int target;
  82     int retval;
  83
  84     gp.value = &target;
  85
  86     /* First, get the number of pixel pipes */
  87     gp.param = RADEON_PARAM_NUM_GB_PIPES;
  88     retval = drmCommandWriteRead(fd, DRM_RADEON_GETPARAM, &gp, sizeof(gp));
  89     if (retval) {
  90         fprintf(stderr, "%s: Failed to get GB pipe count, error number %d\n",
  91                 __FUNCTION__, retval);
  92         exit(1);
  93     }
  94     winsys->gb_pipes = target;
  95
  96     /* Then, get PCI ID */
  97     gp.param = RADEON_PARAM_DEVICE_ID;
  98     retval = drmCommandWriteRead(fd, DRM_RADEON_GETPARAM, &gp, sizeof(gp));
  99     if (retval) {
 100         fprintf(stderr, "%s: Failed to get PCI ID, error number %d\n",
 101                 __FUNCTION__, retval);
 102         exit(1);
 103     }
 104     winsys->pci_id = target;
 105 }
 106
 107 struct r300_winsys*
 108 radeon_create_r300_winsys(int fd, struct radeon_winsys* old_winsys)
 109 {
 110     struct r300_winsys* winsys = CALLOC_STRUCT(r300_winsys);
 111     struct radeon_cs_manager* csm;
 112
 113     if (winsys == NULL) {
 114         return NULL;
 115     }
 116
 117     do_ioctls(winsys, fd);
 118
 119     csm = radeon_cs_manager_gem_ctor(fd);
 120
 121     winsys->cs = radeon_cs_create(csm, 1024 * 64 / 4);
 122
 123     winsys->check_cs = radeon_r300_check_cs;
 124     winsys->begin_cs = radeon_r300_begin_cs;
 125     winsys->write_cs_dword = radeon_r300_write_cs_dword;
 126     winsys->write_cs_reloc = radeon_r300_write_cs_reloc;
 127     winsys->end_cs = radeon_r300_end_cs;
 128     winsys->flush_cs = radeon_r300_flush_cs;
 129
 130     memcpy(winsys, old_winsys, sizeof(struct radeon_winsys));
 131
 132     return winsys;
 133 }