^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (C) Rockchip Electronics Co.Ltd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Author: Felix Zeng <felix.zeng@rock-chips.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/version.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/rk-dma-heap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #if KERNEL_VERSION(5, 10, 0) <= LINUX_VERSION_CODE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/dma-map-ops.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "rknpu_drv.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "rknpu_ioctl.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "rknpu_mem.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) int rknpu_mem_create_ioctl(struct rknpu_device *rknpu_dev, unsigned long data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) struct rknpu_mem_create args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) int ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) struct dma_buf_attachment *attachment;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct sg_table *table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) struct scatterlist *sgl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) dma_addr_t phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct dma_buf *dmabuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) struct page **pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct page *page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct rknpu_mem_object *rknpu_obj = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) int i, fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) unsigned int length, page_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) if (unlikely(copy_from_user(&args, (struct rknpu_mem_create *)data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) sizeof(struct rknpu_mem_create)))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) LOG_ERROR("%s: copy_from_user failed\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) ret = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) if (args.flags & RKNPU_MEM_NON_CONTIGUOUS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) LOG_ERROR("%s: malloc iommu memory unsupported in current!\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) rknpu_obj = kzalloc(sizeof(*rknpu_obj), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) if (!rknpu_obj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) if (args.handle > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) fd = args.handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) dmabuf = dma_buf_get(fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) if (IS_ERR(dmabuf)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) ret = PTR_ERR(dmabuf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) goto err_free_obj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) rknpu_obj->dmabuf = dmabuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) rknpu_obj->owner = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) /* Start test kernel alloc/free dma buf */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) dmabuf = rk_dma_heap_buffer_alloc(rknpu_dev->heap, args.size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) O_CLOEXEC | O_RDWR, 0x0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) dev_name(rknpu_dev->dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) if (IS_ERR(dmabuf)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) ret = PTR_ERR(dmabuf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) goto err_free_obj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) rknpu_obj->dmabuf = dmabuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) rknpu_obj->owner = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) fd = dma_buf_fd(dmabuf, O_CLOEXEC | O_RDWR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) if (fd < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) ret = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) goto err_free_dma_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) attachment = dma_buf_attach(dmabuf, rknpu_dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) if (IS_ERR(attachment)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) ret = PTR_ERR(attachment);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) goto err_free_dma_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) table = dma_buf_map_attachment(attachment, DMA_BIDIRECTIONAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) if (IS_ERR(table)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) dma_buf_detach(dmabuf, attachment);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) ret = PTR_ERR(table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) goto err_free_dma_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) for_each_sgtable_sg(table, sgl, i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) phys = sg_dma_address(sgl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) page = sg_page(sgl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) length = sg_dma_len(sgl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) LOG_DEBUG("%s, %d, phys: %pad, length: %u\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) __LINE__, &phys, length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) page_count = length >> PAGE_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) pages = kmalloc_array(page_count, sizeof(struct page), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) if (!pages) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) goto err_detach_dma_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) for (i = 0; i < page_count; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) pages[i] = &page[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) rknpu_obj->kv_addr = vmap(pages, page_count, VM_MAP, PAGE_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) if (!rknpu_obj->kv_addr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) goto err_free_pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) rknpu_obj->size = PAGE_ALIGN(args.size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) rknpu_obj->dma_addr = phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) rknpu_obj->sgt = table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) args.size = rknpu_obj->size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) args.obj_addr = (__u64)(uintptr_t)rknpu_obj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) args.dma_addr = rknpu_obj->dma_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) args.handle = fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) LOG_DEBUG(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) "args.handle: %d, args.size: %lld, rknpu_obj: %#llx, rknpu_obj->dma_addr: %#llx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) args.handle, args.size, (__u64)(uintptr_t)rknpu_obj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) (__u64)rknpu_obj->dma_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) if (unlikely(copy_to_user((struct rknpu_mem_create *)data, &args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) sizeof(struct rknpu_mem_create)))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) LOG_ERROR("%s: copy_to_user failed\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) ret = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) goto err_unmap_kv_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) kfree(pages);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) dma_buf_unmap_attachment(attachment, table, DMA_BIDIRECTIONAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) dma_buf_detach(dmabuf, attachment);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) err_unmap_kv_addr:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) vunmap(rknpu_obj->kv_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) rknpu_obj->kv_addr = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) err_free_pages:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) kfree(pages);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) err_detach_dma_buf:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) dma_buf_unmap_attachment(attachment, table, DMA_BIDIRECTIONAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) dma_buf_detach(dmabuf, attachment);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) err_free_dma_buf:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) if (rknpu_obj->owner)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) rk_dma_heap_buffer_free(dmabuf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) dma_buf_put(dmabuf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) err_free_obj:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) kfree(rknpu_obj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) int rknpu_mem_destroy_ioctl(struct rknpu_device *rknpu_dev, unsigned long data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) struct rknpu_mem_object *rknpu_obj = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) struct rknpu_mem_destroy args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) struct dma_buf *dmabuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) int ret = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) if (unlikely(copy_from_user(&args, (struct rknpu_mem_destroy *)data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) sizeof(struct rknpu_mem_destroy)))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) LOG_ERROR("%s: copy_from_user failed\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) ret = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) if (!kern_addr_valid(args.obj_addr)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) LOG_ERROR("%s: invalid obj_addr: %#llx\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) (__u64)(uintptr_t)args.obj_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) rknpu_obj = (struct rknpu_mem_object *)(uintptr_t)args.obj_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) dmabuf = rknpu_obj->dmabuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) LOG_DEBUG(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) "free args.handle: %d, rknpu_obj: %#llx, rknpu_obj->dma_addr: %#llx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) args.handle, (__u64)(uintptr_t)rknpu_obj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) (__u64)rknpu_obj->dma_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) vunmap(rknpu_obj->kv_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) rknpu_obj->kv_addr = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) if (!rknpu_obj->owner)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) dma_buf_put(dmabuf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) kfree(rknpu_obj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) int rknpu_mem_sync_ioctl(struct rknpu_device *rknpu_dev, unsigned long data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) struct rknpu_mem_object *rknpu_obj = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) struct rknpu_mem_sync args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) struct dma_buf *dmabuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) int ret = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) if (unlikely(copy_from_user(&args, (struct rknpu_mem_sync *)data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) sizeof(struct rknpu_mem_sync)))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) LOG_ERROR("%s: copy_from_user failed\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) ret = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) if (!kern_addr_valid(args.obj_addr)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) LOG_ERROR("%s: invalid obj_addr: %#llx\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) (__u64)(uintptr_t)args.obj_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) rknpu_obj = (struct rknpu_mem_object *)(uintptr_t)args.obj_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) dmabuf = rknpu_obj->dmabuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) if (args.flags & RKNPU_MEM_SYNC_TO_DEVICE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) dmabuf->ops->end_cpu_access_partial(dmabuf, DMA_TO_DEVICE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) args.offset, args.size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) if (args.flags & RKNPU_MEM_SYNC_FROM_DEVICE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) dmabuf->ops->begin_cpu_access_partial(dmabuf, DMA_FROM_DEVICE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) args.offset, args.size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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