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msm: eva: Deprecate secure heap reference

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Use mem_buf_lend to assign system memory to secure VM.

Change-Id: I6a09e65ddb72dbd6eadd6a88ae56df5430825c9e
Signed-off-by: George Shen <sqiao@codeaurora.org>
This commit is contained in:
George Shen
2021-06-08 06:09:22 -07:00
parent 322bbdeaa3
commit dd913bddc0
1 changed files with 24 additions and 7 deletions
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31
msm/eva/msm_smem.c
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@@ -262,6 +262,9 @@ static int alloc_dma_mem(size_t size, u32 align, int map_kernel,
int rc = 0;
struct dma_buf *dbuf = NULL;
struct dma_heap *heap = NULL;
struct mem_buf_lend_kernel_arg arg;
int vmids[1];
int perms[1];
if (!res) {
dprintk(CVP_ERR, "%s: NULL res\n", __func__);
@@ -281,20 +284,34 @@ static int alloc_dma_mem(size_t size, u32 align, int map_kernel,
size, align);
}
if (mem->flags & SMEM_NON_PIXEL)
heap = dma_heap_find("qcom,secure-non-pixel");
else if (mem->flags & SMEM_PIXEL)
heap = dma_heap_find("qcom,secure-pixel");
dbuf = dma_heap_buffer_alloc(heap, size, 0, 0);
if (IS_ERR_OR_NULL(dbuf)) {
dprintk(CVP_ERR,
"Failed to allocate shared memory = %x bytes, %x %x\n",
size, mem->flags, PTR_ERR(dbuf));
"Failed to allocate shared memory = %x bytes, %x %x\n",
size, mem->flags, PTR_ERR(dbuf));
rc = -ENOMEM;
goto fail_shared_mem_alloc;
}
perms[0] = PERM_READ | PERM_WRITE;
arg.nr_acl_entries = 1;
arg.vmids = vmids;
arg.perms = perms;
if (mem->flags & SMEM_NON_PIXEL) {
vmids[0] = VMID_CP_NON_PIXEL;
rc = mem_buf_lend(dbuf, &arg);
} else if (mem->flags & SMEM_PIXEL) {
vmids[0] = VMID_CP_PIXEL;
rc = mem_buf_lend(dbuf, &arg);
}
if (rc) {
dprintk(CVP_ERR, "Failed to lend dmabuf %d, vmid %d\n",
rc, vmids[0]);
goto fail_device_address;
}
if (!gfa_cv.dmabuf_f_op)
gfa_cv.dmabuf_f_op = (const struct file_operations *)dbuf->file->f_op;