src/mesa/drivers/dri/unichrome/via_fb.c

   1 /*
   2  * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
   3  * Copyright 2001-2003 S3 Graphics, Inc. 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 "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #include <assert.h>
  26
  27 #include "via_context.h"
  28 #include "via_ioctl.h"
  29 #include "via_fb.h"
  30 #include "xf86drm.h"
  31 #include <sys/ioctl.h>
  32
  33 GLboolean
  34 via_alloc_back_buffer(viaContextPtr vmesa)
  35 {
  36     drm_via_mem_t fb;
  37     unsigned char *pFB;
  38 #ifdef DEBUG
  39     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
  40 #endif
  41     fb.context = vmesa->hHWContext;
  42     fb.size = vmesa->back.size;
  43     fb.type = VIDEO;
  44 #ifdef DEBUG
  45     if (VIA_DEBUG) fprintf(stderr, "context = %d, size =%d, type = %d\n", fb.context, fb.size, fb.type);
  46 #endif
  47     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &fb))
  48         return GL_FALSE;
  49
  50     pFB = vmesa->driScreen->pFB;
  51
  52     vmesa->back.offset = fb.offset;
  53     vmesa->back.map = (char *)(fb.offset + (GLuint)pFB);
  54     vmesa->back.index = fb.index;
  55 #ifdef DEBUG
  56     if (VIA_DEBUG) {
  57         fprintf(stderr, "back offset = %08x\n", vmesa->back.offset);
  58         fprintf(stderr, "back index = %d\n", vmesa->back.index);
  59     }
  60
  61     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
  62 #endif
  63     return GL_TRUE;
  64 }
  65
  66 GLboolean
  67 via_alloc_front_buffer(viaContextPtr vmesa)
  68 {
  69     drm_via_mem_t fb;
  70     unsigned char *pFB;
  71 #ifdef DEBUG
  72     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
  73 #endif
  74     fb.context = vmesa->hHWContext;
  75     fb.size = vmesa->back.size;
  76     fb.type = VIDEO;
  77 #ifdef DEBUG
  78     if (VIA_DEBUG) fprintf(stderr, "context = %d, size =%d, type = %d\n", fb.context, fb.size, fb.type);
  79 #endif
  80     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &fb))
  81         return GL_FALSE;
  82
  83     pFB = vmesa->driScreen->pFB;
  84
  85     vmesa->front.offset = fb.offset;
  86     vmesa->front.map = (char *)(fb.offset + (GLuint)pFB);
  87     vmesa->front.index = fb.index;
  88 #ifdef DEBUG
  89     if (VIA_DEBUG) {
  90         fprintf(stderr, "front offset = %08x\n", vmesa->front.offset);
  91         fprintf(stderr, "front index = %d\n", vmesa->front.index);
  92     }
  93
  94
  95     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
  96 #endif
  97     return GL_TRUE;
  98 }
  99
 100 void
 101 via_free_back_buffer(viaContextPtr vmesa)
 102 {
 103     drm_via_mem_t fb;
 104
 105     if (!vmesa) return;
 106     fb.context = vmesa->hHWContext;
 107     fb.index = vmesa->back.index;
 108     fb.type = VIDEO;
 109     ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &fb);
 110     vmesa->back.map = NULL;
 111 }
 112
 113 void
 114 via_free_front_buffer(viaContextPtr vmesa)
 115 {
 116     drm_via_mem_t fb;
 117
 118     if (!vmesa) return;
 119     fb.context = vmesa->hHWContext;
 120     fb.index = vmesa->front.index;
 121     fb.type = VIDEO;
 122     ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &fb);
 123     vmesa->front.map = NULL;
 124 }
 125
 126 GLboolean
 127 via_alloc_depth_buffer(viaContextPtr vmesa)
 128 {
 129     drm_via_mem_t fb;
 130     unsigned char *pFB;
 131 #ifdef DEBUG
 132     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 133 #endif
 134     fb.context = vmesa->hHWContext;
 135     fb.size = vmesa->depth.size;
 136     fb.type = VIDEO;
 137
 138     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &fb)) {
 139         return GL_FALSE;
 140     }
 141
 142     pFB = vmesa->driScreen->pFB;
 143
 144     vmesa->depth.offset = fb.offset;
 145     vmesa->depth.map = (char *)(fb.offset + (GLuint)pFB);
 146     vmesa->depth.index = fb.index;
 147 #ifdef DEBUG
 148     if (VIA_DEBUG) {
 149         fprintf(stderr, "depth offset = %08x\n", vmesa->depth.offset);
 150         fprintf(stderr, "depth index = %d\n", vmesa->depth.index);
 151     }
 152
 153     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 154 #endif
 155     return GL_TRUE;
 156 }
 157
 158 void
 159 via_free_depth_buffer(viaContextPtr vmesa)
 160 {
 161     drm_via_mem_t fb;
 162
 163     if (!vmesa) return;
 164     fb.context = vmesa->hHWContext;
 165     fb.index = vmesa->depth.index;
 166     fb.type = VIDEO;
 167     ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &fb);
 168     vmesa->depth.map = NULL;
 169 }
 170
 171 GLboolean
 172 via_alloc_dma_buffer(viaContextPtr vmesa)
 173 {
 174   drmVIADMAInit init;
 175
 176 #ifdef DEBUG
 177     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 178 #endif
 179     vmesa->dma = (GLuint *) malloc(VIA_DMA_BUFSIZ);
 180
 181     /*
 182      * Check whether AGP DMA has been initialized.
 183      */
 184
 185     init.func = VIA_DMA_INITIALIZED;
 186     vmesa->useAgp =
 187       ( 0 == drmCommandWrite(vmesa->driFd, DRM_VIA_DMA_INIT,
 188                              &init, sizeof(init)));
 189     if (vmesa->useAgp)
 190         printf("unichrome_dri.so: Using AGP.\n");
 191     else
 192         printf("unichrome_dri.so: Using PCI.\n");
 193
 194 #ifdef DEBUG
 195     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 196 #endif
 197     return ((vmesa->dma) ? GL_TRUE : GL_FALSE);
 198 }
 199
 200 void
 201 via_free_dma_buffer(viaContextPtr vmesa)
 202 {
 203     if (!vmesa) return;
 204     free(vmesa->dma);
 205     vmesa->dma = 0;
 206 }
 207
 208 GLboolean
 209 via_alloc_texture(viaContextPtr vmesa, viaTextureObjectPtr t)
 210 {
 211     drm_via_mem_t fb;
 212 #ifdef DEBUG
 213     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 214 #endif
 215     fb.context = vmesa->hHWContext;
 216     fb.size = t->texMem.size;
 217     fb.type = VIDEO;
 218 #ifdef DEBUG
 219     if (VIA_DEBUG) {
 220         fprintf(stderr, "texture size = %d\n", fb.size);
 221         fprintf(stderr, "texture type = %d\n", fb.type);
 222     }
 223 #endif
 224     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &fb)) {
 225         fprintf(stderr, "via_alloc_texture fail\n");
 226         return GL_FALSE;
 227     }
 228
 229     t->texMem.offset = fb.offset;
 230     t->texMem.index = fb.index;
 231 #ifdef DEBUG
 232     if (VIA_DEBUG) fprintf(stderr, "texture index = %d\n", (GLuint)fb.index);
 233 #endif
 234
 235     t->bufAddr = (unsigned char *)(fb.offset + (GLuint)vmesa->driScreen->pFB);
 236 #ifdef DEBUG
 237     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 238 #endif
 239     return GL_TRUE;
 240 }
 241 /*=* John Sheng [2003.5.31]  agp tex *=*/
 242 GLboolean
 243 via_alloc_texture_agp(viaContextPtr vmesa, viaTextureObjectPtr t)
 244 {
 245     drm_via_mem_t fb;
 246 #ifdef DEBUG
 247     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 248 #endif
 249     fb.context = vmesa->hHWContext;
 250     fb.size = t->texMem.size;
 251     fb.type = AGP;
 252 #ifdef DEBUG
 253     if (VIA_DEBUG) {
 254         fprintf(stderr, "texture_agp size = %d\n", fb.size);
 255         fprintf(stderr, "texture type = %d\n", fb.type);
 256     }
 257 #endif
 258     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &fb)) {
 259         fprintf(stderr, "via_alloc_texture_agp fail\n");
 260         return GL_FALSE;
 261     }
 262
 263     t->texMem.offset = fb.offset;
 264     t->texMem.index = fb.index;
 265 #ifdef DEBUG
 266     if (VIA_DEBUG) fprintf(stderr, "texture agp index = %d\n", (GLuint)fb.index);
 267 #endif
 268
 269     t->bufAddr = (unsigned char *)((GLuint)vmesa->viaScreen->agpLinearStart + fb.offset);
 270     /*=* John Sheng [2003.5.31]  agp tex *=*/
 271     t->inAGP = GL_TRUE;
 272 #ifdef DEBUG
 273     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 274 #endif
 275     return GL_TRUE;
 276 }
 277
 278 void
 279 via_free_texture(viaContextPtr vmesa, viaTextureObjectPtr t)
 280 {
 281     drm_via_mem_t fb;
 282 #ifdef DEBUG
 283     if (VIA_DEBUG) {
 284         fprintf(stderr, "via_free_texture: index = %d\n",
 285             t->texMem.index);
 286         fprintf(stderr, "via_free_texture: size = %d\n",
 287             t->texMem.size);
 288     }
 289 #endif
 290     if (!vmesa) {
 291         fprintf(stderr, "!mesa\n");
 292         return;
 293     }
 294
 295     fb.context = vmesa->hHWContext;
 296     fb.index = t->texMem.index;
 297
 298     /*=* John Sheng [2003.5.31]  agp tex *=*/
 299     if(t->inAGP)
 300         fb.type = AGP;
 301     else
 302         fb.type = VIDEO;
 303
 304     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &fb)) {
 305         if(vmesa->shareCtx) {
 306             fb.context = ((viaContextPtr)((GLcontext *)(vmesa->shareCtx)->DriverCtx))->hHWContext;
 307             if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &fb)) {
 308                 fprintf(stderr, "via_free_texture fail\n");
 309             }
 310         }
 311         else
 312             fprintf(stderr, "via_free_texture fail\n");
 313     }
 314
 315     t->bufAddr = NULL;
 316 }