27 _resize_bar(struct xe_device *xe, int resno, resource_size_t size)  in _resize_bar()  argument
29 	struct pci_dev *pdev = to_pci_dev(xe->drm.dev);  in _resize_bar()
38 …drm_info(&xe->drm, "Failed to resize BAR%d to %dM (%pe). Consider enabling 'Resizable BAR' support…  in _resize_bar()
43 	drm_info(&xe->drm, "BAR%d resized to %dM\n", resno, 1 << bar_size);  in _resize_bar()
50 static void resize_vram_bar(struct xe_device *xe)  in resize_vram_bar()  argument
53 	struct pci_dev *pdev = to_pci_dev(xe->drm.dev);  in resize_vram_bar()
78 			drm_info(&xe->drm,  in resize_vram_bar()
79 				 "Requested size: %lluMiB is not supported by rebar sizes: 0x%x. Leaving default: %lluMiB\n",  in resize_vram_bar()
96 	drm_info(&xe->drm, "Attempting to resize bar from %lluMiB -> %lluMiB\n",  in resize_vram_bar()
104 		    (u64)root_res->start > 0x100000000ul)  in resize_vram_bar()
109 …drm_info(&xe->drm, "Can't resize VRAM BAR - platform support is missing. Consider enabling 'Resiza…  in resize_vram_bar()
116 	_resize_bar(xe, LMEM_BAR, rebar_size);  in resize_vram_bar()
136 static int determine_lmem_bar_size(struct xe_device *xe)  in determine_lmem_bar_size()  argument
138 	struct pci_dev *pdev = to_pci_dev(xe->drm.dev);  in determine_lmem_bar_size()
141 		drm_err(&xe->drm, "pci resource is not valid\n");  in determine_lmem_bar_size()
145 	resize_vram_bar(xe);  in determine_lmem_bar_size()
147 	xe->mem.vram.io_start = pci_resource_start(pdev, LMEM_BAR);  in determine_lmem_bar_size()
148 	xe->mem.vram.io_size = pci_resource_len(pdev, LMEM_BAR);  in determine_lmem_bar_size()
149 	if (!xe->mem.vram.io_size)  in determine_lmem_bar_size()
152 	/* XXX: Need to change when xe link code is ready */  in determine_lmem_bar_size()
153 	xe->mem.vram.dpa_base = 0;  in determine_lmem_bar_size()
156 	xe->mem.vram.mapping = ioremap_wc(xe->mem.vram.io_start, xe->mem.vram.io_size);  in determine_lmem_bar_size()
158 	return 0;  in determine_lmem_bar_size()
163 	struct xe_device *xe = gt_to_xe(gt);  in get_flat_ccs_offset()  local
167 	if (GRAPHICS_VER(xe) >= 20) {  in get_flat_ccs_offset()
188 		xe_assert_msg(xe, offset == (xe_mmio_read64_2x32(gt, GSMBASE) - ccs_size),  in get_flat_ccs_offset()
220 	struct xe_device *xe = tile_to_xe(tile);  in tile_vram_size()  local
226 	if (IS_SRIOV_VF(xe)) {  in tile_vram_size()
230 		offset = 0;  in tile_vram_size()
231 		for_each_tile(t, xe, id)  in tile_vram_size()
239 		return 0;  in tile_vram_size()
247 	if (unlikely(xe->info.platform == XE_DG1)) {  in tile_vram_size()
248 		*tile_size = pci_resource_len(to_pci_dev(xe->drm.dev), LMEM_BAR);  in tile_vram_size()
249 		*tile_offset = 0;  in tile_vram_size()
257 	if (xe->info.has_flat_ccs) {  in tile_vram_size()
271 	struct xe_device *xe = arg;  in vram_fini()  local
275 	if (xe->mem.vram.mapping)  in vram_fini()
276 		iounmap(xe->mem.vram.mapping);  in vram_fini()
278 	xe->mem.vram.mapping = NULL;  in vram_fini()
280 	for_each_tile(tile, xe, id)  in vram_fini()
286  * @xe: the &xe_device
290  * Return: 0 on success, error code on failure
292 int xe_vram_probe(struct xe_device *xe)  in xe_vram_probe()  argument
296 	u64 available_size = 0;  in xe_vram_probe()
297 	u64 total_size = 0;  in xe_vram_probe()
304 	if (!IS_DGFX(xe))  in xe_vram_probe()
305 		return 0;  in xe_vram_probe()
308 	tile = xe_device_get_root_tile(xe);  in xe_vram_probe()
313 	err = determine_lmem_bar_size(xe);  in xe_vram_probe()
317 	drm_info(&xe->drm, "VISIBLE VRAM: %pa, %pa\n", &xe->mem.vram.io_start,  in xe_vram_probe()
318 		 &xe->mem.vram.io_size);  in xe_vram_probe()
320 	io_size = xe->mem.vram.io_size;  in xe_vram_probe()
323 	for_each_tile(tile, xe, id) {  in xe_vram_probe()
329 		tile->mem.vram.io_start = xe->mem.vram.io_start + tile_offset;  in xe_vram_probe()
333 			drm_err(&xe->drm, "Tile without any CPU visible VRAM. Aborting.\n");  in xe_vram_probe()
337 		tile->mem.vram.dpa_base = xe->mem.vram.dpa_base + tile_offset;  in xe_vram_probe()
339 		tile->mem.vram.mapping = xe->mem.vram.mapping + tile_offset;  in xe_vram_probe()
342 			drm_info(&xe->drm, "Small BAR device\n");  in xe_vram_probe()
343 …drm_info(&xe->drm, "VRAM[%u, %u]: Actual physical size %pa, usable size exclude stolen %pa, CPU ac…  in xe_vram_probe()
345 		drm_info(&xe->drm, "VRAM[%u, %u]: DPA range: [%pa-%llx], io range: [%pa-%llx]\n", id, tile->id,  in xe_vram_probe()
353 		if (total_size > xe->mem.vram.io_size) {  in xe_vram_probe()
354 			drm_info(&xe->drm, "VRAM: %pa is larger than resource %pa\n",  in xe_vram_probe()
355 				 &total_size, &xe->mem.vram.io_size);  in xe_vram_probe()
361 	xe->mem.vram.actual_physical_size = total_size;  in xe_vram_probe()
363 	drm_info(&xe->drm, "Total VRAM: %pa, %pa\n", &xe->mem.vram.io_start,  in xe_vram_probe()
364 		 &xe->mem.vram.actual_physical_size);  in xe_vram_probe()
365 	drm_info(&xe->drm, "Available VRAM: %pa, %pa\n", &xe->mem.vram.io_start,  in xe_vram_probe()
368 	return devm_add_action_or_reset(xe->drm.dev, vram_fini, xe);  in xe_vram_probe()