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Commit 8d70f4d8 authored by Michael Adisumarta's avatar Michael Adisumarta
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msm: ipa: fix to match MHI Prime ring allocation size with dma api 



This fix ensures to match the MHI Prime ring allocation sizes with
dma mapping/unmapping apis failing which may cause missed page table
mapping while invalidating the cache lines.

Change-Id: I6d2a70980a106036e046b135010a5c3d22c57fcb
Acked-by: default avatarJyothi J <jyothij@qti.qualcom.com>
Signed-off-by: default avatarMichael Adisumarta <madisuma@codeaurora.org>
parent 6298b5f1

drivers/platform/msm/ipa/ipa_v3/ipa_mpm.c

+6 −4
Original line number Diff line number Diff line
@@ -477,7 +477,7 @@ static dma_addr_t ipa_mpm_smmu_map(void *va_addr, 


		/* Flush the cache with dma_map_single for IPA AP CB */

		*ap_cb_iova = dma_map_single(ipa3_ctx->pdev, va_addr,

						sz, dir);

						IPA_MPM_RING_TOTAL_SIZE, dir);

		ret = ipa3_iommu_map(ipa_smmu_domain, iova_p,

					pa_p, size_p, prot);

		if (ret) {
@@ -499,7 +499,8 @@ static dma_addr_t ipa_mpm_smmu_map(void *va_addr, 
		iova = iova_p;

		cb->next_addr = iova_p + size_p;

	} else {

		iova = dma_map_single(ipa3_ctx->pdev, va_addr, sz, dir);

		iova = dma_map_single(ipa3_ctx->pdev, va_addr,

					IPA_MPM_RING_TOTAL_SIZE, dir);

		*ap_cb_iova = iova;

	}

	return iova;
@@ -556,9 +557,10 @@ static void ipa_mpm_smmu_unmap(dma_addr_t carved_iova, int sz, int dir, 


		cb->next_addr -= size_p;

		dma_unmap_single(ipa3_ctx->pdev, ap_cb_iova,

			size_p, dir);

			IPA_MPM_RING_TOTAL_SIZE, dir);

	} else {

		dma_unmap_single(ipa3_ctx->pdev, ap_cb_iova, sz, dir);

		dma_unmap_single(ipa3_ctx->pdev, ap_cb_iova,

			IPA_MPM_RING_TOTAL_SIZE, dir);

	}

}