From 1d68998d30730cb9623300ade04cb4816bf97a03 Mon Sep 17 00:00:00 2001
From: Nandha Kishore Easwaran <nandhaki@codeaurora.org>
Date: Tue, 24 Nov 2020 15:06:12 +0530
Subject: [PATCH] qcacmn: Use cache_inv instead of cache_sync

Use cache invalidate api instead of cache_sync since
cache_sync api is not available in MIPS platform.

Change-Id: I4b8e2fc3cb9055d1c392c2f6dbe7d6be7c66031b
---
 hal/wifi3.0/hal_api.h | 39 ++++++++++++++++++++++++++++-----------
 1 file changed, 28 insertions(+), 11 deletions(-)

diff --git a/hal/wifi3.0/hal_api.h b/hal/wifi3.0/hal_api.h
index 34e7e7cdb2..527698036f 100644
--- a/hal/wifi3.0/hal_api.h
+++ b/hal/wifi3.0/hal_api.h
@@ -1197,6 +1197,31 @@ void *hal_srng_dst_peek(hal_soc_handle_t hal_soc_hdl,
 	return NULL;
 }
 
+
+/**
+ * hal_mem_dma_cache_sync - Cache sync the specified virtual address Range
+ * @hal_soc: HAL soc handle
+ * @desc: desc start address
+ * @entry_size: size of memory to sync
+ *
+ * Return: void
+ */
+#if defined(__LINUX_MIPS32_ARCH__) || defined(__LINUX_MIPS64_ARCH__)
+static inline void hal_mem_dma_cache_sync(struct hal_soc *soc, uint32_t *desc,
+					  uint32_t entry_size)
+{
+	qdf_nbuf_dma_inv_range((void *)desc, (void *)(desc + entry_size));
+}
+#else
+static inline void hal_mem_dma_cache_sync(struct hal_soc *soc, uint32_t *desc,
+					  uint32_t entry_size)
+{
+	qdf_mem_dma_cache_sync(soc->qdf_dev, qdf_mem_virt_to_phys(desc),
+			       QDF_DMA_FROM_DEVICE,
+			       (entry_size * sizeof(uint32_t)));
+}
+#endif
+
 /**
  * hal_srng_access_start_unlocked - Start ring access (unlocked). Should use
  * hal_srng_access_start if locked access is required
@@ -1224,12 +1249,8 @@ hal_srng_access_start_unlocked(hal_soc_handle_t hal_soc_hdl,
 		if (srng->flags & HAL_SRNG_CACHED_DESC) {
 			desc = hal_srng_dst_peek(hal_soc_hdl, hal_ring_hdl);
 			if (qdf_likely(desc)) {
-				qdf_mem_dma_cache_sync(soc->qdf_dev,
-						       qdf_mem_virt_to_phys
-						       (desc),
-						       QDF_DMA_FROM_DEVICE,
-						       (srng->entry_size *
-							sizeof(uint32_t)));
+				hal_mem_dma_cache_sync(soc, desc,
+						       srng->entry_size);
 				qdf_prefetch(desc);
 			}
 		}
@@ -1320,11 +1341,7 @@ void *hal_srng_dst_get_next(void *hal_soc,
 
 		tp = srng->u.dst_ring.tp;
 		desc_next = &srng->ring_base_vaddr[srng->u.dst_ring.tp];
-		qdf_mem_dma_cache_sync(soc->qdf_dev,
-				       qdf_mem_virt_to_phys(desc_next),
-				       QDF_DMA_FROM_DEVICE,
-				       (srng->entry_size *
-					sizeof(uint32_t)));
+		hal_mem_dma_cache_sync(soc, desc_next, srng->entry_size);
 		qdf_prefetch(desc_next);
 	}