/* * Copyright © 2022 Imagination Technologies Ltd. * * 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, sublicense, 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 NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS 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 #include #include #include #include "hwdef/rogue_hw_utils.h" #include "pvr_csb.h" #include "pvr_device_info.h" #include "pvr_private.h" #include "pvr_srv.h" #include "pvr_srv_bo.h" #include "pvr_srv_bridge.h" #include "pvr_srv_job_compute.h" #include "pvr_srv_job_render.h" #include "pvr_srv_job_transfer.h" #include "pvr_srv_public.h" #include "pvr_srv_sync.h" #include "pvr_srv_job_null.h" #include "pvr_types.h" #include "pvr_winsys.h" #include "pvr_winsys_helper.h" #include "util/log.h" #include "util/macros.h" #include "util/os_misc.h" #include "vk_log.h" /* Amount of space used to hold sync prim values (in bytes). */ #define PVR_SRV_SYNC_PRIM_VALUE_SIZE 4U static VkResult pvr_srv_heap_init( struct pvr_srv_winsys *srv_ws, struct pvr_srv_winsys_heap *srv_heap, uint32_t heap_idx, const struct pvr_winsys_static_data_offsets *const static_data_offsets) { pvr_dev_addr_t base_address; uint32_t log2_page_size; uint64_t reserved_size; VkResult result; uint64_t size; result = pvr_srv_get_heap_details(srv_ws->render_fd, heap_idx, 0, NULL, &base_address, &size, &reserved_size, &log2_page_size); if (result != VK_SUCCESS) return result; result = pvr_winsys_helper_winsys_heap_init(&srv_ws->base, base_address, size, base_address, reserved_size, log2_page_size, static_data_offsets, &srv_heap->base); if (result != VK_SUCCESS) return result; assert(srv_heap->base.page_size == srv_ws->base.page_size); assert(srv_heap->base.log2_page_size == srv_ws->base.log2_page_size); assert(srv_heap->base.reserved_size % PVR_SRV_RESERVED_SIZE_GRANULARITY == 0); /* Create server-side counterpart of Device Memory heap */ result = pvr_srv_int_heap_create(srv_ws->render_fd, srv_heap->base.base_addr, srv_heap->base.size, srv_heap->base.log2_page_size, srv_ws->server_memctx, &srv_heap->server_heap); if (result != VK_SUCCESS) { pvr_winsys_helper_winsys_heap_finish(&srv_heap->base); return result; } return VK_SUCCESS; } static bool pvr_srv_heap_finish(struct pvr_srv_winsys *srv_ws, struct pvr_srv_winsys_heap *srv_heap) { if (!pvr_winsys_helper_winsys_heap_finish(&srv_heap->base)) return false; pvr_srv_int_heap_destroy(srv_ws->render_fd, srv_heap->server_heap); return true; } static VkResult pvr_srv_memctx_init(struct pvr_srv_winsys *srv_ws) { const struct pvr_winsys_static_data_offsets general_heap_static_data_offsets = { .yuv_csc = FWIF_GENERAL_HEAP_YUV_CSC_OFFSET_BYTES, }; const struct pvr_winsys_static_data_offsets pds_heap_static_data_offsets = { .eot = FWIF_PDS_HEAP_EOT_OFFSET_BYTES, .vdm_sync = FWIF_PDS_HEAP_VDM_SYNC_OFFSET_BYTES, }; const struct pvr_winsys_static_data_offsets usc_heap_static_data_offsets = { .vdm_sync = FWIF_USC_HEAP_VDM_SYNC_OFFSET_BYTES, }; const struct pvr_winsys_static_data_offsets no_static_data_offsets = { 0 }; char heap_name[PVR_SRV_DEVMEM_HEAPNAME_MAXLENGTH]; int transfer_3d_heap_idx = -1; int vis_test_heap_idx = -1; int general_heap_idx = -1; int rgn_hdr_heap_idx = -1; int pds_heap_idx = -1; int usc_heap_idx = -1; uint32_t heap_count; VkResult result; result = pvr_srv_int_ctx_create(srv_ws->render_fd, &srv_ws->server_memctx, &srv_ws->server_memctx_data); if (result != VK_SUCCESS) return result; os_get_page_size(&srv_ws->base.page_size); srv_ws->base.log2_page_size = util_logbase2(srv_ws->base.page_size); result = pvr_srv_get_heap_count(srv_ws->render_fd, &heap_count); if (result != VK_SUCCESS) goto err_pvr_srv_int_ctx_destroy; assert(heap_count > 0); for (uint32_t i = 0; i < heap_count; i++) { result = pvr_srv_get_heap_details(srv_ws->render_fd, i, sizeof(heap_name), heap_name, NULL, NULL, NULL, NULL); if (result != VK_SUCCESS) goto err_pvr_srv_int_ctx_destroy; if (general_heap_idx == -1 && strncmp(heap_name, PVR_SRV_GENERAL_HEAP_IDENT, sizeof(PVR_SRV_GENERAL_HEAP_IDENT)) == 0) { general_heap_idx = i; } else if (pds_heap_idx == -1 && strncmp(heap_name, PVR_SRV_PDSCODEDATA_HEAP_IDENT, sizeof(PVR_SRV_PDSCODEDATA_HEAP_IDENT)) == 0) { pds_heap_idx = i; } else if (rgn_hdr_heap_idx == -1 && strncmp(heap_name, PVR_SRV_RGNHDR_BRN_63142_HEAP_IDENT, sizeof(PVR_SRV_RGNHDR_BRN_63142_HEAP_IDENT)) == 0) { rgn_hdr_heap_idx = i; } else if (transfer_3d_heap_idx == -1 && strncmp(heap_name, PVR_SRV_TRANSFER_3D_HEAP_IDENT, sizeof(PVR_SRV_TRANSFER_3D_HEAP_IDENT)) == 0) { transfer_3d_heap_idx = i; } else if (usc_heap_idx == -1 && strncmp(heap_name, PVR_SRV_USCCODE_HEAP_IDENT, sizeof(PVR_SRV_USCCODE_HEAP_IDENT)) == 0) { usc_heap_idx = i; } else if (vis_test_heap_idx == -1 && strncmp(heap_name, PVR_SRV_VISIBILITY_TEST_HEAP_IDENT, sizeof(PVR_SRV_VISIBILITY_TEST_HEAP_IDENT)) == 0) { vis_test_heap_idx = i; } } /* Check for and initialise required heaps. */ if (general_heap_idx == -1 || pds_heap_idx == -1 || transfer_3d_heap_idx == -1 || usc_heap_idx == -1 || vis_test_heap_idx == -1) { result = vk_error(NULL, VK_ERROR_INITIALIZATION_FAILED); goto err_pvr_srv_int_ctx_destroy; } result = pvr_srv_heap_init(srv_ws, &srv_ws->general_heap, general_heap_idx, &general_heap_static_data_offsets); if (result != VK_SUCCESS) goto err_pvr_srv_int_ctx_destroy; result = pvr_srv_heap_init(srv_ws, &srv_ws->pds_heap, pds_heap_idx, &pds_heap_static_data_offsets); if (result != VK_SUCCESS) goto err_pvr_srv_heap_finish_general; result = pvr_srv_heap_init(srv_ws, &srv_ws->transfer_3d_heap, transfer_3d_heap_idx, &no_static_data_offsets); if (result != VK_SUCCESS) goto err_pvr_srv_heap_finish_pds; result = pvr_srv_heap_init(srv_ws, &srv_ws->usc_heap, usc_heap_idx, &usc_heap_static_data_offsets); if (result != VK_SUCCESS) goto err_pvr_srv_heap_finish_transfer_3d; result = pvr_srv_heap_init(srv_ws, &srv_ws->vis_test_heap, vis_test_heap_idx, &no_static_data_offsets); if (result != VK_SUCCESS) goto err_pvr_srv_heap_finish_usc; /* Check for and set up optional heaps. */ if (rgn_hdr_heap_idx != -1) { result = pvr_srv_heap_init(srv_ws, &srv_ws->rgn_hdr_heap, rgn_hdr_heap_idx, &no_static_data_offsets); if (result != VK_SUCCESS) goto err_pvr_srv_heap_finish_vis_test; srv_ws->rgn_hdr_heap_present = true; } else { srv_ws->rgn_hdr_heap_present = false; } result = pvr_winsys_helper_allocate_static_memory(&srv_ws->base, pvr_srv_heap_alloc_reserved, &srv_ws->general_heap.base, &srv_ws->pds_heap.base, &srv_ws->usc_heap.base, &srv_ws->general_vma, &srv_ws->pds_vma, &srv_ws->usc_vma); if (result != VK_SUCCESS) goto err_pvr_srv_heap_finish_rgn_hdr; result = pvr_winsys_helper_fill_static_memory(&srv_ws->base, srv_ws->general_vma, srv_ws->pds_vma, srv_ws->usc_vma); if (result != VK_SUCCESS) goto err_pvr_srv_free_static_memory; return VK_SUCCESS; err_pvr_srv_free_static_memory: pvr_winsys_helper_free_static_memory(srv_ws->general_vma, srv_ws->pds_vma, srv_ws->usc_vma); err_pvr_srv_heap_finish_rgn_hdr: if (srv_ws->rgn_hdr_heap_present) pvr_srv_heap_finish(srv_ws, &srv_ws->rgn_hdr_heap); err_pvr_srv_heap_finish_vis_test: pvr_srv_heap_finish(srv_ws, &srv_ws->vis_test_heap); err_pvr_srv_heap_finish_usc: pvr_srv_heap_finish(srv_ws, &srv_ws->usc_heap); err_pvr_srv_heap_finish_transfer_3d: pvr_srv_heap_finish(srv_ws, &srv_ws->transfer_3d_heap); err_pvr_srv_heap_finish_pds: pvr_srv_heap_finish(srv_ws, &srv_ws->pds_heap); err_pvr_srv_heap_finish_general: pvr_srv_heap_finish(srv_ws, &srv_ws->general_heap); err_pvr_srv_int_ctx_destroy: pvr_srv_int_ctx_destroy(srv_ws->render_fd, srv_ws->server_memctx); return result; } static void pvr_srv_memctx_finish(struct pvr_srv_winsys *srv_ws) { pvr_winsys_helper_free_static_memory(srv_ws->general_vma, srv_ws->pds_vma, srv_ws->usc_vma); if (srv_ws->rgn_hdr_heap_present) { if (!pvr_srv_heap_finish(srv_ws, &srv_ws->rgn_hdr_heap)) { vk_errorf(NULL, VK_ERROR_UNKNOWN, "Region header heap in use, can not deinit"); } } if (!pvr_srv_heap_finish(srv_ws, &srv_ws->vis_test_heap)) { vk_errorf(NULL, VK_ERROR_UNKNOWN, "Visibility test heap in use, can not deinit"); } if (!pvr_srv_heap_finish(srv_ws, &srv_ws->usc_heap)) vk_errorf(NULL, VK_ERROR_UNKNOWN, "USC heap in use, can not deinit"); if (!pvr_srv_heap_finish(srv_ws, &srv_ws->transfer_3d_heap)) { vk_errorf(NULL, VK_ERROR_UNKNOWN, "Transfer 3D heap in use, can not deinit"); } if (!pvr_srv_heap_finish(srv_ws, &srv_ws->pds_heap)) vk_errorf(NULL, VK_ERROR_UNKNOWN, "PDS heap in use, can not deinit"); if (!pvr_srv_heap_finish(srv_ws, &srv_ws->general_heap)) { vk_errorf(NULL, VK_ERROR_UNKNOWN, "General heap in use, can not deinit"); } pvr_srv_int_ctx_destroy(srv_ws->render_fd, srv_ws->server_memctx); } static VkResult pvr_srv_sync_prim_block_init(struct pvr_srv_winsys *srv_ws) { /* We don't currently make use of this value, but we're required to provide * a valid pointer to pvr_srv_alloc_sync_primitive_block. */ void *sync_block_pmr; return pvr_srv_alloc_sync_primitive_block(srv_ws->render_fd, &srv_ws->sync_block_handle, &sync_block_pmr, &srv_ws->sync_block_size, &srv_ws->sync_block_fw_addr); } static void pvr_srv_sync_prim_block_finish(struct pvr_srv_winsys *srv_ws) { pvr_srv_free_sync_primitive_block(srv_ws->render_fd, srv_ws->sync_block_handle); srv_ws->sync_block_handle = NULL; } static void pvr_srv_winsys_destroy(struct pvr_winsys *ws) { struct pvr_srv_winsys *srv_ws = to_pvr_srv_winsys(ws); int fd = srv_ws->render_fd; pvr_srv_sync_prim_block_finish(srv_ws); pvr_srv_memctx_finish(srv_ws); vk_free(srv_ws->alloc, srv_ws); pvr_srv_connection_destroy(fd); } static uint64_t pvr_srv_get_min_free_list_size(const struct pvr_device_info *dev_info) { uint64_t min_num_pages; if (PVR_HAS_FEATURE(dev_info, roguexe)) { if (PVR_HAS_QUIRK(dev_info, 66011)) min_num_pages = 40U; else min_num_pages = 25U; } else { min_num_pages = 50U; } return min_num_pages << ROGUE_BIF_PM_PHYSICAL_PAGE_SHIFT; } static inline uint64_t pvr_srv_get_num_phantoms(const struct pvr_device_info *dev_info) { return DIV_ROUND_UP(PVR_GET_FEATURE_VALUE(dev_info, num_clusters, 1U), 4U); } /* Return the total reserved size of partition in dwords. */ static inline uint64_t pvr_srv_get_total_reserved_partition_size( const struct pvr_device_info *dev_info) { uint32_t tile_size_x = PVR_GET_FEATURE_VALUE(dev_info, tile_size_x, 0); uint32_t tile_size_y = PVR_GET_FEATURE_VALUE(dev_info, tile_size_y, 0); uint32_t max_partitions = PVR_GET_FEATURE_VALUE(dev_info, max_partitions, 0); if (tile_size_x == 16 && tile_size_y == 16) { return tile_size_x * tile_size_y * max_partitions * PVR_GET_FEATURE_VALUE(dev_info, usc_min_output_registers_per_pix, 0); } return max_partitions * 1024U; } static inline uint64_t pvr_srv_get_reserved_shared_size(const struct pvr_device_info *dev_info) { uint32_t common_store_size_in_dwords = PVR_GET_FEATURE_VALUE(dev_info, common_store_size_in_dwords, 512U * 4U * 4U); uint32_t reserved_shared_size = common_store_size_in_dwords - (256U * 4U) - pvr_srv_get_total_reserved_partition_size(dev_info); if (PVR_HAS_QUIRK(dev_info, 44079)) { uint32_t common_store_split_point = (768U * 4U * 4U); return MIN2(common_store_split_point - (256U * 4U), reserved_shared_size); } return reserved_shared_size; } static inline uint64_t pvr_srv_get_max_coeffs(const struct pvr_device_info *dev_info) { uint32_t max_coeff_additional_portion = ROGUE_MAX_VERTEX_SHARED_REGISTERS; uint32_t pending_allocation_shared_regs = 2U * 1024U; uint32_t pending_allocation_coeff_regs = 0U; uint32_t num_phantoms = pvr_srv_get_num_phantoms(dev_info); uint32_t tiles_in_flight = PVR_GET_FEATURE_VALUE(dev_info, isp_max_tiles_in_flight, 0); uint32_t max_coeff_pixel_portion = DIV_ROUND_UP(tiles_in_flight, num_phantoms); max_coeff_pixel_portion *= ROGUE_MAX_PIXEL_SHARED_REGISTERS; /* Compute tasks on cores with BRN48492 and without compute overlap may lock * up without two additional lines of coeffs. */ if (PVR_HAS_QUIRK(dev_info, 48492) && !PVR_HAS_FEATURE(dev_info, compute_overlap)) { pending_allocation_coeff_regs = 2U * 1024U; } if (PVR_HAS_ERN(dev_info, 38748)) pending_allocation_shared_regs = 0U; if (PVR_HAS_ERN(dev_info, 38020)) { max_coeff_additional_portion += rogue_max_compute_shared_registers(dev_info); } return pvr_srv_get_reserved_shared_size(dev_info) + pending_allocation_coeff_regs - (max_coeff_pixel_portion + max_coeff_additional_portion + pending_allocation_shared_regs); } static inline uint64_t pvr_srv_get_cdm_max_local_mem_size_regs(const struct pvr_device_info *dev_info) { uint32_t available_coeffs_in_dwords = pvr_srv_get_max_coeffs(dev_info); if (PVR_HAS_QUIRK(dev_info, 48492) && PVR_HAS_FEATURE(dev_info, roguexe) && !PVR_HAS_FEATURE(dev_info, compute_overlap)) { /* Driver must not use the 2 reserved lines. */ available_coeffs_in_dwords -= ROGUE_CSRM_LINE_SIZE_IN_DWORDS * 2; } /* The maximum amount of local memory available to a kernel is the minimum * of the total number of coefficient registers available and the max common * store allocation size which can be made by the CDM. * * If any coeff lines are reserved for tessellation or pixel then we need to * subtract those too. */ return MIN2(available_coeffs_in_dwords, ROGUE_MAX_PER_KERNEL_LOCAL_MEM_SIZE_REGS); } static int pvr_srv_winsys_device_info_init(struct pvr_winsys *ws, struct pvr_device_info *dev_info, struct pvr_device_runtime_info *runtime_info) { struct pvr_srv_winsys *srv_ws = to_pvr_srv_winsys(ws); VkResult result; int ret; ret = pvr_device_info_init(dev_info, srv_ws->bvnc); if (ret) { mesa_logw("Unsupported BVNC: %u.%u.%u.%u\n", PVR_BVNC_UNPACK_B(srv_ws->bvnc), PVR_BVNC_UNPACK_V(srv_ws->bvnc), PVR_BVNC_UNPACK_N(srv_ws->bvnc), PVR_BVNC_UNPACK_C(srv_ws->bvnc)); return ret; } runtime_info->min_free_list_size = pvr_srv_get_min_free_list_size(dev_info); runtime_info->reserved_shared_size = pvr_srv_get_reserved_shared_size(dev_info); runtime_info->total_reserved_partition_size = pvr_srv_get_total_reserved_partition_size(dev_info); runtime_info->num_phantoms = pvr_srv_get_num_phantoms(dev_info); runtime_info->max_coeffs = pvr_srv_get_max_coeffs(dev_info); runtime_info->cdm_max_local_mem_size_regs = pvr_srv_get_cdm_max_local_mem_size_regs(dev_info); if (PVR_HAS_FEATURE(dev_info, gpu_multicore_support)) { result = pvr_srv_get_multicore_info(srv_ws->render_fd, 0, NULL, &runtime_info->core_count); if (result != VK_SUCCESS) return -ENODEV; } else { runtime_info->core_count = 1; } return 0; } static void pvr_srv_winsys_get_heaps_info(struct pvr_winsys *ws, struct pvr_winsys_heaps *heaps) { struct pvr_srv_winsys *srv_ws = to_pvr_srv_winsys(ws); heaps->general_heap = &srv_ws->general_heap.base; heaps->pds_heap = &srv_ws->pds_heap.base; heaps->transfer_3d_heap = &srv_ws->transfer_3d_heap.base; heaps->usc_heap = &srv_ws->usc_heap.base; heaps->vis_test_heap = &srv_ws->vis_test_heap.base; if (srv_ws->rgn_hdr_heap_present) heaps->rgn_hdr_heap = &srv_ws->rgn_hdr_heap.base; else heaps->rgn_hdr_heap = &srv_ws->general_heap.base; } static const struct pvr_winsys_ops srv_winsys_ops = { .destroy = pvr_srv_winsys_destroy, .device_info_init = pvr_srv_winsys_device_info_init, .get_heaps_info = pvr_srv_winsys_get_heaps_info, .buffer_create = pvr_srv_winsys_buffer_create, .buffer_create_from_fd = pvr_srv_winsys_buffer_create_from_fd, .buffer_destroy = pvr_srv_winsys_buffer_destroy, .buffer_get_fd = pvr_srv_winsys_buffer_get_fd, .buffer_map = pvr_srv_winsys_buffer_map, .buffer_unmap = pvr_srv_winsys_buffer_unmap, .heap_alloc = pvr_srv_winsys_heap_alloc, .heap_free = pvr_srv_winsys_heap_free, .vma_map = pvr_srv_winsys_vma_map, .vma_unmap = pvr_srv_winsys_vma_unmap, .free_list_create = pvr_srv_winsys_free_list_create, .free_list_destroy = pvr_srv_winsys_free_list_destroy, .render_target_dataset_create = pvr_srv_render_target_dataset_create, .render_target_dataset_destroy = pvr_srv_render_target_dataset_destroy, .render_ctx_create = pvr_srv_winsys_render_ctx_create, .render_ctx_destroy = pvr_srv_winsys_render_ctx_destroy, .render_submit = pvr_srv_winsys_render_submit, .compute_ctx_create = pvr_srv_winsys_compute_ctx_create, .compute_ctx_destroy = pvr_srv_winsys_compute_ctx_destroy, .compute_submit = pvr_srv_winsys_compute_submit, .transfer_ctx_create = pvr_srv_winsys_transfer_ctx_create, .transfer_ctx_destroy = pvr_srv_winsys_transfer_ctx_destroy, .transfer_submit = pvr_srv_winsys_transfer_submit, .null_job_submit = pvr_srv_winsys_null_job_submit, }; static bool pvr_is_driver_compatible(int render_fd) { drmVersionPtr version; version = drmGetVersion(render_fd); if (!version) return false; assert(strcmp(version->name, "pvr") == 0); /* Only the 1.17 driver is supported for now. */ if (version->version_major != PVR_SRV_VERSION_MAJ || version->version_minor != PVR_SRV_VERSION_MIN) { vk_errorf(NULL, VK_ERROR_INCOMPATIBLE_DRIVER, "Unsupported downstream driver version (%u.%u)", version->version_major, version->version_minor); drmFreeVersion(version); return false; } drmFreeVersion(version); return true; } struct pvr_winsys *pvr_srv_winsys_create(int master_fd, int render_fd, const VkAllocationCallbacks *alloc) { struct pvr_srv_winsys *srv_ws; VkResult result; uint64_t bvnc; if (!pvr_is_driver_compatible(render_fd)) return NULL; result = pvr_srv_init_module(render_fd, PVR_SRVKM_MODULE_TYPE_SERVICES); if (result != VK_SUCCESS) return NULL; result = pvr_srv_connection_create(render_fd, &bvnc); if (result != VK_SUCCESS) return NULL; srv_ws = vk_zalloc(alloc, sizeof(*srv_ws), 8, VK_SYSTEM_ALLOCATION_SCOPE_DEVICE); if (!srv_ws) { vk_error(NULL, VK_ERROR_OUT_OF_HOST_MEMORY); goto err_pvr_srv_connection_destroy; } srv_ws->base.ops = &srv_winsys_ops; srv_ws->bvnc = bvnc; srv_ws->master_fd = master_fd; srv_ws->render_fd = render_fd; srv_ws->alloc = alloc; srv_ws->base.syncobj_type = pvr_srv_sync_type; srv_ws->base.sync_types[0] = &srv_ws->base.syncobj_type; srv_ws->base.sync_types[1] = NULL; result = pvr_srv_memctx_init(srv_ws); if (result != VK_SUCCESS) goto err_vk_free_srv_ws; result = pvr_srv_sync_prim_block_init(srv_ws); if (result != VK_SUCCESS) goto err_pvr_srv_memctx_finish; return &srv_ws->base; err_pvr_srv_memctx_finish: pvr_srv_memctx_finish(srv_ws); err_vk_free_srv_ws: vk_free(alloc, srv_ws); err_pvr_srv_connection_destroy: pvr_srv_connection_destroy(render_fd); return NULL; } struct pvr_srv_sync_prim *pvr_srv_sync_prim_alloc(struct pvr_srv_winsys *srv_ws) { struct pvr_srv_sync_prim *sync_prim; if (p_atomic_read(&srv_ws->sync_block_offset) == srv_ws->sync_block_size) { vk_error(NULL, VK_ERROR_UNKNOWN); return NULL; } sync_prim = vk_alloc(srv_ws->alloc, sizeof(*sync_prim), 8, VK_SYSTEM_ALLOCATION_SCOPE_DEVICE); if (!sync_prim) { vk_error(NULL, VK_ERROR_OUT_OF_HOST_MEMORY); return NULL; } /* p_atomic_add_return() returns the new value rather than the old one, so * we have to subtract PVR_SRV_SYNC_PRIM_VALUE_SIZE to get the old value. */ sync_prim->offset = p_atomic_add_return(&srv_ws->sync_block_offset, PVR_SRV_SYNC_PRIM_VALUE_SIZE); sync_prim->offset -= PVR_SRV_SYNC_PRIM_VALUE_SIZE; if (sync_prim->offset == srv_ws->sync_block_size) { /* FIXME: need to free offset back to srv_ws->sync_block_offset. */ vk_free(srv_ws->alloc, sync_prim); vk_error(NULL, VK_ERROR_UNKNOWN); return NULL; } sync_prim->srv_ws = srv_ws; return sync_prim; } /* FIXME: Add support for freeing offsets back to the sync block. */ void pvr_srv_sync_prim_free(struct pvr_srv_sync_prim *sync_prim) { if (sync_prim) { struct pvr_srv_winsys *srv_ws = sync_prim->srv_ws; vk_free(srv_ws->alloc, sync_prim); } }