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_draw_buffer(viaContextPtr vmesa, viaBuffer *buf)
  35 {
  36    drm_via_mem_t mem;
  37    mem.context = vmesa->hHWContext;
  38    mem.size = buf->size;
  39    mem.type = VIDEO;
  40
  41    if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &mem))
  42       return GL_FALSE;
  43
  44
  45    buf->offset = mem.offset;
  46    buf->map = (char *)vmesa->driScreen->pFB + mem.offset;
  47    buf->index = mem.index;
  48    return GL_TRUE;
  49 }
  50
  51 void
  52 via_free_draw_buffer(viaContextPtr vmesa, viaBuffer *buf)
  53 {
  54    drm_via_mem_t mem;
  55
  56    if (!vmesa) return;
  57
  58    mem.context = vmesa->hHWContext;
  59    mem.index = buf->index;
  60    mem.type = VIDEO;
  61    ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &mem);
  62    buf->map = NULL;
  63 }
  64
  65
  66 GLboolean
  67 via_alloc_dma_buffer(viaContextPtr vmesa)
  68 {
  69    drm_via_dma_init_t init;
  70
  71    if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
  72    vmesa->dma = (GLubyte *) malloc(VIA_DMA_BUFSIZ);
  73
  74    /*
  75     * Check whether AGP DMA has been initialized.
  76     */
  77    init.func = VIA_DMA_INITIALIZED;
  78    vmesa->useAgp =
  79      ( 0 == drmCommandWrite(vmesa->driFd, DRM_VIA_DMA_INIT,
  80                              &init, sizeof(init)));
  81    if (VIA_DEBUG) {
  82       if (vmesa->useAgp)
  83          fprintf(stderr, "unichrome_dri.so: Using AGP.\n");
  84       else
  85          fprintf(stderr, "unichrome_dri.so: Using PCI.\n");
  86
  87       fprintf(stderr, "%s - out\n", __FUNCTION__);
  88    }
  89
  90    return ((vmesa->dma) ? GL_TRUE : GL_FALSE);
  91 }
  92
  93 void
  94 via_free_dma_buffer(viaContextPtr vmesa)
  95 {
  96     if (!vmesa) return;
  97     free(vmesa->dma);
  98     vmesa->dma = 0;
  99 }
 100
 101 GLboolean
 102 via_alloc_texture(viaContextPtr vmesa, viaTextureObjectPtr t)
 103 {
 104     drm_via_mem_t fb;
 105     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 106     fb.context = vmesa->hHWContext;
 107     fb.size = t->texMem.size;
 108     fb.type = VIDEO;
 109     if (VIA_DEBUG) {
 110         fprintf(stderr, "texture size = %d\n", fb.size);
 111         fprintf(stderr, "texture type = %d\n", fb.type);
 112     }
 113     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &fb)) {
 114         fprintf(stderr, "via_alloc_texture fail\n");
 115         return GL_FALSE;
 116     }
 117
 118     t->texMem.offset = fb.offset;
 119     t->texMem.index = fb.index;
 120     if (VIA_DEBUG) fprintf(stderr, "texture index = %d\n", (GLuint)fb.index);
 121
 122     t->bufAddr = (unsigned char *)(fb.offset + (GLuint)vmesa->driScreen->pFB);
 123     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 124     return GL_TRUE;
 125 }
 126 /*=* John Sheng [2003.5.31]  agp tex *=*/
 127 GLboolean
 128 via_alloc_texture_agp(viaContextPtr vmesa, viaTextureObjectPtr t)
 129 {
 130     drm_via_mem_t fb;
 131     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 132     fb.context = vmesa->hHWContext;
 133     fb.size = t->texMem.size;
 134     fb.type = AGP;
 135     if (VIA_DEBUG) {
 136         fprintf(stderr, "texture_agp size = %d\n", fb.size);
 137         fprintf(stderr, "texture type = %d\n", fb.type);
 138     }
 139     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &fb)) {
 140         fprintf(stderr, "via_alloc_texture_agp fail\n");
 141         return GL_FALSE;
 142     }
 143
 144     t->texMem.offset = fb.offset;
 145     t->texMem.index = fb.index;
 146     if (VIA_DEBUG) fprintf(stderr, "texture agp index = %d\n", (GLuint)fb.index);
 147
 148     t->bufAddr = (unsigned char *)((GLuint)vmesa->viaScreen->agpLinearStart + fb.offset);
 149     /*=* John Sheng [2003.5.31]  agp tex *=*/
 150     t->inAGP = GL_TRUE;
 151     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 152     return GL_TRUE;
 153 }
 154
 155 void
 156 via_free_texture(viaContextPtr vmesa, viaTextureObjectPtr t)
 157 {
 158     drm_via_mem_t fb;
 159     if (VIA_DEBUG) {
 160         fprintf(stderr, "via_free_texture: index = %d\n",
 161             t->texMem.index);
 162         fprintf(stderr, "via_free_texture: size = %d\n",
 163             t->texMem.size);
 164     }
 165     if (!vmesa) {
 166         fprintf(stderr, "!mesa\n");
 167         return;
 168     }
 169
 170     fb.context = vmesa->hHWContext;
 171     fb.index = t->texMem.index;
 172
 173     /*=* John Sheng [2003.5.31]  agp tex *=*/
 174     if(t->inAGP)
 175         fb.type = AGP;
 176     else
 177         fb.type = VIDEO;
 178
 179     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &fb)) {
 180         if(vmesa->shareCtx) {
 181             fb.context = ((viaContextPtr)((GLcontext *)(vmesa->shareCtx)->DriverCtx))->hHWContext;
 182             if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &fb)) {
 183                 fprintf(stderr, "via_free_texture fail\n");
 184             }
 185         }
 186         else
 187             fprintf(stderr, "via_free_texture fail\n");
 188     }
 189
 190     t->bufAddr = NULL;
 191 }