netdev - [PATCH 05/16] iommu/io-pgtable-arm-v7s: use page allocation function provided by iommu-pages.h

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Date: Tue, 28 Nov 2023 20:49:27 +0000
From: Pasha Tatashin <pasha.tatashin@...een.com>
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Subject: [PATCH 05/16] iommu/io-pgtable-arm-v7s: use page allocation function provided by iommu-pages.h

Convert iommu/io-pgtable-arm-v7s.c to use the new page allocation functions
provided in iommu-pages.h.

Signed-off-by: Pasha Tatashin <pasha.tatashin@...een.com>
---
 drivers/iommu/io-pgtable-arm-v7s.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c
index 75f244a3e12d..3d494ca1f671 100644
--- a/drivers/iommu/io-pgtable-arm-v7s.c
+++ b/drivers/iommu/io-pgtable-arm-v7s.c
@@ -34,6 +34,7 @@
 #include <linux/types.h>
 
 #include <asm/barrier.h>
+#include "iommu-pages.h"
 
 /* Struct accessors */
 #define io_pgtable_to_data(x)						\
@@ -255,7 +256,7 @@ static void *__arm_v7s_alloc_table(int lvl, gfp_t gfp,
 		 GFP_KERNEL : ARM_V7S_TABLE_GFP_DMA;
 
 	if (lvl == 1)
-		table = (void *)__get_free_pages(gfp_l1 | __GFP_ZERO, get_order(size));
+		table = iommu_alloc_pages(gfp_l1, get_order(size));
 	else if (lvl == 2)
 		table = kmem_cache_zalloc(data->l2_tables, gfp);
 
@@ -283,6 +284,7 @@ static void *__arm_v7s_alloc_table(int lvl, gfp_t gfp,
 	}
 	if (lvl == 2)
 		kmemleak_ignore(table);
+
 	return table;
 
 out_unmap:
@@ -290,7 +292,7 @@ static void *__arm_v7s_alloc_table(int lvl, gfp_t gfp,
 	dma_unmap_single(dev, dma, size, DMA_TO_DEVICE);
 out_free:
 	if (lvl == 1)
-		free_pages((unsigned long)table, get_order(size));
+		iommu_free_pages(table, get_order(size));
 	else
 		kmem_cache_free(data->l2_tables, table);
 	return NULL;
@@ -306,8 +308,9 @@ static void __arm_v7s_free_table(void *table, int lvl,
 	if (!cfg->coherent_walk)
 		dma_unmap_single(dev, __arm_v7s_dma_addr(table), size,
 				 DMA_TO_DEVICE);
+
 	if (lvl == 1)
-		free_pages((unsigned long)table, get_order(size));
+		iommu_free_pages(table, get_order(size));
 	else
 		kmem_cache_free(data->l2_tables, table);
 }
-- 
2.43.0.rc2.451.g8631bc7472-goog