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    drmVIADMAInit 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 (vmesa->useAgp)
  82       printf("unichrome_dri.so: Using AGP.\n");
  83    else
  84       printf("unichrome_dri.so: Using PCI.\n");
  85
  86    if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
  87    return ((vmesa->dma) ? GL_TRUE : GL_FALSE);
  88 }
  89
  90 void
  91 via_free_dma_buffer(viaContextPtr vmesa)
  92 {
  93     if (!vmesa) return;
  94     free(vmesa->dma);
  95     vmesa->dma = 0;
  96 }
  97
  98 GLboolean
  99 via_alloc_texture(viaContextPtr vmesa, viaTextureObjectPtr t)
 100 {
 101     drm_via_mem_t fb;
 102     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 103     fb.context = vmesa->hHWContext;
 104     fb.size = t->texMem.size;
 105     fb.type = VIDEO;
 106     if (VIA_DEBUG) {
 107         fprintf(stderr, "texture size = %d\n", fb.size);
 108         fprintf(stderr, "texture type = %d\n", fb.type);
 109     }
 110     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &fb)) {
 111         fprintf(stderr, "via_alloc_texture fail\n");
 112         return GL_FALSE;
 113     }
 114
 115     t->texMem.offset = fb.offset;
 116     t->texMem.index = fb.index;
 117     if (VIA_DEBUG) fprintf(stderr, "texture index = %d\n", (GLuint)fb.index);
 118
 119     t->bufAddr = (unsigned char *)(fb.offset + (GLuint)vmesa->driScreen->pFB);
 120     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 121     return GL_TRUE;
 122 }
 123 /*=* John Sheng [2003.5.31]  agp tex *=*/
 124 GLboolean
 125 via_alloc_texture_agp(viaContextPtr vmesa, viaTextureObjectPtr t)
 126 {
 127     drm_via_mem_t fb;
 128     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 129     fb.context = vmesa->hHWContext;
 130     fb.size = t->texMem.size;
 131     fb.type = AGP;
 132     if (VIA_DEBUG) {
 133         fprintf(stderr, "texture_agp size = %d\n", fb.size);
 134         fprintf(stderr, "texture type = %d\n", fb.type);
 135     }
 136     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &fb)) {
 137         fprintf(stderr, "via_alloc_texture_agp fail\n");
 138         return GL_FALSE;
 139     }
 140
 141     t->texMem.offset = fb.offset;
 142     t->texMem.index = fb.index;
 143     if (VIA_DEBUG) fprintf(stderr, "texture agp index = %d\n", (GLuint)fb.index);
 144
 145     t->bufAddr = (unsigned char *)((GLuint)vmesa->viaScreen->agpLinearStart + fb.offset);
 146     /*=* John Sheng [2003.5.31]  agp tex *=*/
 147     t->inAGP = GL_TRUE;
 148     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 149     return GL_TRUE;
 150 }
 151
 152 void
 153 via_free_texture(viaContextPtr vmesa, viaTextureObjectPtr t)
 154 {
 155     drm_via_mem_t fb;
 156     if (VIA_DEBUG) {
 157         fprintf(stderr, "via_free_texture: index = %d\n",
 158             t->texMem.index);
 159         fprintf(stderr, "via_free_texture: size = %d\n",
 160             t->texMem.size);
 161     }
 162     if (!vmesa) {
 163         fprintf(stderr, "!mesa\n");
 164         return;
 165     }
 166
 167     fb.context = vmesa->hHWContext;
 168     fb.index = t->texMem.index;
 169
 170     /*=* John Sheng [2003.5.31]  agp tex *=*/
 171     if(t->inAGP)
 172         fb.type = AGP;
 173     else
 174         fb.type = VIDEO;
 175
 176     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &fb)) {
 177         if(vmesa->shareCtx) {
 178             fb.context = ((viaContextPtr)((GLcontext *)(vmesa->shareCtx)->DriverCtx))->hHWContext;
 179             if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &fb)) {
 180                 fprintf(stderr, "via_free_texture fail\n");
 181             }
 182         }
 183         else
 184             fprintf(stderr, "via_free_texture fail\n");
 185     }
 186
 187     t->bufAddr = NULL;
 188 }