Evolution-X-Devices/kernel_google_msm-4.9
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sm: ipa3: Fix to memory allocation failure

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During device reboot when IPA is going for shutdown,
the allocation for memory request fails.  Add change in
IPA to not sleep while memory allocation.

Bug: 136455750
Test: Run Monkey/AUPT test
Change-Id: I0bdbf0f622770566ad1135c76f6edc2790285420
Signed-off-by: Pooja Kumari <kumarip@codeaurora.org>
This commit is contained in:
Pooja Kumari
2019-07-31 15:20:19 +05:30
committed by Mars Lin
parent 726ef703d3
commit d089ef2e02
1 changed files with 7 additions and 2 deletions
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9
drivers/platform/msm/ipa/ipa_v3/ipahal/ipahal_fltrt.c
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@@ -3485,6 +3485,7 @@ bdy_alloc_fail:
int ipahal_fltrt_allocate_hw_sys_tbl(struct ipa_mem_buffer *tbl_mem)
{
struct ipahal_fltrt_obj *obj;
gfp_t flag = GFP_KERNEL;
IPAHAL_DBG_LOW("Entry\n");
@@ -3502,10 +3503,14 @@ int ipahal_fltrt_allocate_hw_sys_tbl(struct ipa_mem_buffer *tbl_mem)
/* add word for rule-set terminator */
tbl_mem->size += obj->tbl_width;
alloc:
tbl_mem->base = dma_alloc_coherent(ipahal_ctx->ipa_pdev, tbl_mem->size,
&tbl_mem->phys_base, GFP_KERNEL);
&tbl_mem->phys_base, flag);
if (!tbl_mem->base) {
if (flag == GFP_KERNEL) {
flag = GFP_ATOMIC;
goto alloc;
}
IPAHAL_ERR("fail to alloc DMA buf of size %d\n",
tbl_mem->size);
return -ENOMEM;