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mem-buf: Remove logic for detecting donate support

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Support to donate memory is always present on compatible hypervisor
builds.

Change-Id: Ic7a4c03716277e379014bb31e58358cffb85409c
Signed-off-by: Patrick Daly <quic_pdaly@quicinc.com>
This commit is contained in:
Patrick Daly 2022-06-15 22:17:24 -07:00 committed by Chris Goldsworthy
parent a0663e611c
commit 010e2b03f3
1 changed files with 1 additions and 38 deletions
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39
drivers/soc/qcom/mem_buf/mem-buf-gh.c
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@ -339,43 +339,6 @@ static int mem_buf_get_mem_xfer_type_gh(struct gh_acl_desc *acl_desc, int owner_
return GH_RM_TRANS_TYPE_LEND;
}
/*
* Check whether donate operation is supported. If not, use
* lend instead. Share is not supported for remotealloc.
*/
static u32 get_alloc_req_xfer_type(struct mem_buf_xfer_mem *xfer_mem)
{
static bool initialized;
static int alloc_req_xfer_type;
struct mem_buf_lend_kernel_arg arg;
int vmids[] = {VMID_TUIVM};
int perms[] = {PERM_READ | PERM_WRITE | PERM_EXEC};
int ret;
if (initialized)
return alloc_req_xfer_type;
arg.nr_acl_entries = ARRAY_SIZE(vmids);
arg.vmids = vmids;
arg.perms = perms;
arg.flags = 0;
arg.label = 0;
ret = mem_buf_assign_mem(GH_RM_TRANS_TYPE_DONATE, xfer_mem->mem_sgt, &arg);
if (ret) {
initialized = true;
alloc_req_xfer_type = GH_RM_TRANS_TYPE_LEND;
} else {
initialized = true;
alloc_req_xfer_type = GH_RM_TRANS_TYPE_DONATE;
mem_buf_unassign_mem(xfer_mem->mem_sgt, vmids, ARRAY_SIZE(vmids),
arg.memparcel_hdl);
}
pr_info("%s: xfer_type set to %d\n", __func__, alloc_req_xfer_type);
return alloc_req_xfer_type;
}
static struct mem_buf_xfer_mem *mem_buf_process_alloc_req(void *req)
{
int ret;
@ -392,7 +355,7 @@ static struct mem_buf_xfer_mem *mem_buf_process_alloc_req(void *req)
goto err_rmt_alloc;
if (!xfer_mem->secure_alloc) {
xfer_type = get_alloc_req_xfer_type(xfer_mem);
xfer_type = GH_RM_TRANS_TYPE_DONATE;
arg.nr_acl_entries = xfer_mem->nr_acl_entries;
arg.vmids = xfer_mem->dst_vmids;