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Diffstat (limited to 'arch/hexagon/kernel')
-rw-r--r--arch/hexagon/kernel/dma.c21
-rw-r--r--arch/hexagon/kernel/hexagon_ksyms.c1
2 files changed, 9 insertions, 13 deletions
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index e74b65009587..546792d176a4 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -25,25 +25,16 @@
#include <linux/module.h>
#include <asm/page.h>
+#define HEXAGON_MAPPING_ERROR 0
+
const struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
-int bad_dma_address; /* globals are automatically initialized to zero */
-
static inline void *dma_addr_to_virt(dma_addr_t dma_addr)
{
return phys_to_virt((unsigned long) dma_addr);
}
-int dma_supported(struct device *dev, u64 mask)
-{
- if (mask == DMA_BIT_MASK(32))
- return 1;
- else
- return 0;
-}
-EXPORT_SYMBOL(dma_supported);
-
static struct gen_pool *coherent_pool;
@@ -181,7 +172,7 @@ static dma_addr_t hexagon_map_page(struct device *dev, struct page *page,
WARN_ON(size == 0);
if (!check_addr("map_single", dev, bus, size))
- return bad_dma_address;
+ return HEXAGON_MAPPING_ERROR;
if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
dma_sync(dma_addr_to_virt(bus), size, dir);
@@ -203,6 +194,11 @@ static void hexagon_sync_single_for_device(struct device *dev,
dma_sync(dma_addr_to_virt(dma_handle), size, dir);
}
+static int hexagon_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return dma_addr == HEXAGON_MAPPING_ERROR;
+}
+
const struct dma_map_ops hexagon_dma_ops = {
.alloc = hexagon_dma_alloc_coherent,
.free = hexagon_free_coherent,
@@ -210,6 +206,7 @@ const struct dma_map_ops hexagon_dma_ops = {
.map_page = hexagon_map_page,
.sync_single_for_cpu = hexagon_sync_single_for_cpu,
.sync_single_for_device = hexagon_sync_single_for_device,
+ .mapping_error = hexagon_mapping_error,
.is_phys = 1,
};
diff --git a/arch/hexagon/kernel/hexagon_ksyms.c b/arch/hexagon/kernel/hexagon_ksyms.c
index 00bcad9cbd8f..aa248f595431 100644
--- a/arch/hexagon/kernel/hexagon_ksyms.c
+++ b/arch/hexagon/kernel/hexagon_ksyms.c
@@ -40,7 +40,6 @@ EXPORT_SYMBOL(memset);
/* Additional variables */
EXPORT_SYMBOL(__phys_offset);
EXPORT_SYMBOL(_dflt_cache_att);
-EXPORT_SYMBOL(bad_dma_address);
#define DECLARE_EXPORT(name) \
extern void name(void); EXPORT_SYMBOL(name)