Lines Matching refs:gart
62 * radeon_gart_table_ram_alloc - allocate system ram for gart page table
68 * gart table to be in system memory.
75 ptr = dma_alloc_coherent(&rdev->pdev->dev, rdev->gart.table_size,
76 &rdev->gart.table_addr, GFP_KERNEL);
84 rdev->gart.table_size >> PAGE_SHIFT);
87 rdev->gart.ptr = ptr;
92 * radeon_gart_table_ram_free - free system ram for gart page table
98 * gart table to be in system memory.
102 if (rdev->gart.ptr == NULL) {
108 set_memory_wb((unsigned long)rdev->gart.ptr,
109 rdev->gart.table_size >> PAGE_SHIFT);
112 dma_free_coherent(&rdev->pdev->dev, rdev->gart.table_size,
113 (void *)rdev->gart.ptr, rdev->gart.table_addr);
114 rdev->gart.ptr = NULL;
115 rdev->gart.table_addr = 0;
119 * radeon_gart_table_vram_alloc - allocate vram for gart page table
125 * gart table to be in video memory.
132 if (rdev->gart.robj == NULL) {
133 r = radeon_bo_create(rdev, rdev->gart.table_size,
135 0, NULL, NULL, &rdev->gart.robj);
144 * radeon_gart_table_vram_pin - pin gart page table in vram
150 * gart table to be in video memory.
158 r = radeon_bo_reserve(rdev->gart.robj, false);
161 r = radeon_bo_pin(rdev->gart.robj,
164 radeon_bo_unreserve(rdev->gart.robj);
167 r = radeon_bo_kmap(rdev->gart.robj, &rdev->gart.ptr);
169 radeon_bo_unpin(rdev->gart.robj);
170 radeon_bo_unreserve(rdev->gart.robj);
171 rdev->gart.table_addr = gpu_addr;
179 for (i = 0; i < rdev->gart.num_gpu_pages; i++)
180 radeon_gart_set_page(rdev, i, rdev->gart.pages_entry[i]);
189 * radeon_gart_table_vram_unpin - unpin gart page table in vram
194 * These asics require the gart table to be in video memory.
200 if (rdev->gart.robj == NULL) {
203 r = radeon_bo_reserve(rdev->gart.robj, false);
205 radeon_bo_kunmap(rdev->gart.robj);
206 radeon_bo_unpin(rdev->gart.robj);
207 radeon_bo_unreserve(rdev->gart.robj);
208 rdev->gart.ptr = NULL;
213 * radeon_gart_table_vram_free - free gart page table vram
218 * (pcie r4xx, r5xx+). These asics require the gart table to
223 if (rdev->gart.robj == NULL) {
226 radeon_bo_unref(&rdev->gart.robj);
230 * Common gart functions.
233 * radeon_gart_unbind - unbind pages from the gart page table
236 * @offset: offset into the GPU's gart aperture
239 * Unbinds the requested pages from the gart page table and
249 if (!rdev->gart.ready) {
256 if (rdev->gart.pages[p]) {
257 rdev->gart.pages[p] = NULL;
259 rdev->gart.pages_entry[t] = rdev->dummy_page.entry;
260 if (rdev->gart.ptr) {
267 if (rdev->gart.ptr) {
274 * radeon_gart_bind - bind pages into the gart page table
277 * @offset: offset into the GPU's gart aperture
283 * Binds the requested pages to the gart page table
296 if (!rdev->gart.ready) {
304 rdev->gart.pages[p] = pagelist[i];
308 rdev->gart.pages_entry[t] = page_entry;
309 if (rdev->gart.ptr) {
315 if (rdev->gart.ptr) {
323 * radeon_gart_init - init the driver info for managing the gart
327 * Allocate the dummy page and init the gart driver info (all asics).
334 if (rdev->gart.pages) {
346 rdev->gart.num_cpu_pages = rdev->mc.gtt_size / PAGE_SIZE;
347 rdev->gart.num_gpu_pages = rdev->mc.gtt_size / RADEON_GPU_PAGE_SIZE;
349 rdev->gart.num_cpu_pages, rdev->gart.num_gpu_pages);
351 rdev->gart.pages = vzalloc(array_size(sizeof(void *),
352 rdev->gart.num_cpu_pages));
353 if (rdev->gart.pages == NULL) {
357 rdev->gart.pages_entry = vmalloc(array_size(sizeof(uint64_t),
358 rdev->gart.num_gpu_pages));
359 if (rdev->gart.pages_entry == NULL) {
364 for (i = 0; i < rdev->gart.num_gpu_pages; i++)
365 rdev->gart.pages_entry[i] = rdev->dummy_page.entry;
370 * radeon_gart_fini - tear down the driver info for managing the gart
374 * Tear down the gart driver info and free the dummy page (all asics).
378 if (rdev->gart.ready) {
380 radeon_gart_unbind(rdev, 0, rdev->gart.num_cpu_pages);
382 rdev->gart.ready = false;
383 vfree(rdev->gart.pages);
384 vfree(rdev->gart.pages_entry);
385 rdev->gart.pages = NULL;
386 rdev->gart.pages_entry = NULL;