diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_fb.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_fb.c | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_fb.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_fb.c new file mode 100644 index 000000000..faa669073 --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_fb.c @@ -0,0 +1,243 @@ +/* + * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved. + * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sub license, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include <assert.h> + +#include "via_context.h" +#include "via_ioctl.h" +#include "via_fb.h" +#include "xf86drm.h" +#include "imports.h" +#include "simple_list.h" +#include <sys/ioctl.h> + +GLboolean +via_alloc_draw_buffer(struct via_context *vmesa, struct via_buffer *buf) +{ + drm_via_mem_t mem; + mem.context = vmesa->hHWContext; + mem.size = buf->size; + mem.type = VIA_MEM_VIDEO; + mem.offset = 0; + mem.index = 0; + + if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &mem)) + return GL_FALSE; + + + buf->offset = mem.offset; + buf->map = (char *)vmesa->driScreen->pFB + mem.offset; + buf->index = mem.index; + return GL_TRUE; +} + +void +via_free_draw_buffer(struct via_context *vmesa, struct via_buffer *buf) +{ + drm_via_mem_t mem; + + if (!vmesa) return; + + mem.context = vmesa->hHWContext; + mem.index = buf->index; + mem.type = VIA_MEM_VIDEO; + mem.offset = buf->offset; + mem.size = buf->size; + + ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &mem); + buf->map = NULL; +} + + +GLboolean +via_alloc_dma_buffer(struct via_context *vmesa) +{ + drm_via_dma_init_t init; + + vmesa->dma = (GLubyte *) malloc(VIA_DMA_BUFSIZ); + + /* + * Check whether AGP DMA has been initialized. + */ + memset(&init, 0, sizeof(init)); + init.func = VIA_DMA_INITIALIZED; + + vmesa->useAgp = + ( 0 == drmCommandWrite(vmesa->driFd, DRM_VIA_DMA_INIT, + &init, sizeof(init))); + if (VIA_DEBUG & DEBUG_DMA) { + if (vmesa->useAgp) + fprintf(stderr, "unichrome_dri.so: Using AGP.\n"); + else + fprintf(stderr, "unichrome_dri.so: Using PCI.\n"); + } + + return ((vmesa->dma) ? GL_TRUE : GL_FALSE); +} + +void +via_free_dma_buffer(struct via_context *vmesa) +{ + if (!vmesa) return; + free(vmesa->dma); + vmesa->dma = 0; +} + + +/* These functions now allocate and free the via_tex_buffer struct as well: + */ +struct via_tex_buffer * +via_alloc_texture(struct via_context *vmesa, + GLuint size, + GLuint memType) +{ + struct via_tex_buffer *t = CALLOC_STRUCT(via_tex_buffer); + + if (!t) + goto cleanup; + + t->size = size; + t->memType = memType; + insert_at_tail(&vmesa->tex_image_list[memType], t); + + if (t->memType == VIA_MEM_AGP || + t->memType == VIA_MEM_VIDEO) { + drm_via_mem_t fb; + + fb.context = vmesa->hHWContext; + fb.size = t->size; + fb.type = t->memType; + fb.offset = 0; + fb.index = 0; + + if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &fb) != 0 || + fb.index == 0) + goto cleanup; + + if (0) + fprintf(stderr, "offset %lx index %lx\n", fb.offset, fb.index); + + t->offset = fb.offset; + t->index = fb.index; + + if (t->memType == VIA_MEM_AGP) { + t->bufAddr = (GLubyte *)((unsigned long)vmesa->viaScreen->agpLinearStart + + fb.offset); + t->texBase = vmesa->agpBase + fb.offset; + } + else { + t->bufAddr = (GLubyte *)((unsigned long)vmesa->driScreen->pFB + fb.offset); + t->texBase = fb.offset; + } + + vmesa->total_alloc[t->memType] += t->size; + return t; + } + else if (t->memType == VIA_MEM_SYSTEM) { + + t->bufAddr = _mesa_malloc(t->size); + if (!t->bufAddr) + goto cleanup; + + vmesa->total_alloc[t->memType] += t->size; + return t; + } + + cleanup: + if (t) { + remove_from_list(t); + FREE(t); + } + + return NULL; +} + + +static void +via_do_free_texture(struct via_context *vmesa, struct via_tex_buffer *t) +{ + drm_via_mem_t fb; + + remove_from_list( t ); + + vmesa->total_alloc[t->memType] -= t->size; + + fb.context = vmesa->hHWContext; + fb.index = t->index; + fb.offset = t->offset; + fb.type = t->memType; + fb.size = t->size; + + if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &fb)) { + fprintf(stderr, "via_free_texture fail\n"); + } + + FREE(t); +} + + +/* Release textures which were potentially still being referenced by + * hardware at the time when they were originally freed. + */ +void +via_release_pending_textures( struct via_context *vmesa ) +{ + struct via_tex_buffer *s, *tmp; + + foreach_s( s, tmp, &vmesa->freed_tex_buffers ) { + if (!VIA_GEQ_WRAP(s->lastUsed, vmesa->lastBreadcrumbRead)) { + if (VIA_DEBUG & DEBUG_TEXTURE) + fprintf(stderr, "%s: release tex sz %d lastUsed %x\n", + __FUNCTION__, s->size, s->lastUsed); + via_do_free_texture(vmesa, s); + } + } +} + + + +void +via_free_texture(struct via_context *vmesa, struct via_tex_buffer *t) +{ + if (!t) { + return; + } + else if (t->memType == VIA_MEM_SYSTEM) { + remove_from_list(t); + vmesa->total_alloc[t->memType] -= t->size; + _mesa_free(t->bufAddr); + _mesa_free(t); + } + else if (t->index && viaCheckBreadcrumb(vmesa, t->lastUsed)) { + via_do_free_texture( vmesa, t ); + } + else { + /* Close current breadcrumb so that we can free this eventually: + */ + if (t->lastUsed == vmesa->lastBreadcrumbWrite) + viaEmitBreadcrumb(vmesa); + + move_to_tail( &vmesa->freed_tex_buffers, t ); + } +} |