x86: move dma_supported and dma_set_mask to pci-dma_32.c

This is the way x86_64 does, so this make them equal. They have
to be extern now in the header, and the extern definition is moved to
the common dma-mapping.h header.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/x86/kernel/pci-dma_32.c b/arch/x86/kernel/pci-dma_32.c
index 5133032..453b4bd 100644 (file)
--- a/arch/x86/kernel/pci-dma_32.c
+++ b/arch/x86/kernel/pci-dma_32.c
@@ -156,6 +156,39 @@ EXPORT_SYMBOL(dma_mark_declared_memory_occupied);
 int forbid_dac;
 EXPORT_SYMBOL(forbid_dac);
 
+int
+dma_supported(struct device *dev, u64 mask)
+{
+       /*
+        * we fall back to GFP_DMA when the mask isn't all 1s,
+        * so we can't guarantee allocations that must be
+        * within a tighter range than GFP_DMA..
+        */
+       if (mask < 0x00ffffff)
+               return 0;
+
+       /* Work around chipset bugs */
+       if (forbid_dac > 0 && mask > 0xffffffffULL)
+               return 0;
+
+       if (dma_ops->dma_supported)
+               return dma_ops->dma_supported(dev, mask);
+
+       return 1;
+}
+
+int
+dma_set_mask(struct device *dev, u64 mask)
+{
+       if (!dev->dma_mask || !dma_supported(dev, mask))
+               return -EIO;
+
+       *dev->dma_mask = mask;
+
+       return 0;
+}
+
+
 static __devinit void via_no_dac(struct pci_dev *dev)
 {
        if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) {

diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h
index 51a79d7..c671a0a 100644 (file)
--- a/include/asm-x86/dma-mapping.h
+++ b/include/asm-x86/dma-mapping.h
@@ -62,6 +62,9 @@ void dma_free_coherent(struct device *dev, size_t size,
                         void *vaddr, dma_addr_t dma_handle);
 
 
+extern int dma_supported(struct device *hwdev, u64 mask);
+extern int dma_set_mask(struct device *dev, u64 mask);
+
 #ifdef CONFIG_X86_32
 # include "dma-mapping_32.h"
 #else

diff --git a/include/asm-x86/dma-mapping_32.h b/include/asm-x86/dma-mapping_32.h
index e60c30a..fd7246d 100644 (file)
--- a/include/asm-x86/dma-mapping_32.h
+++ b/include/asm-x86/dma-mapping_32.h
@@ -17,35 +17,6 @@ dma_mapping_error(dma_addr_t dma_addr)
 extern int forbid_dac;
 
 static inline int
-dma_supported(struct device *dev, u64 mask)
-{
-        /*
-         * we fall back to GFP_DMA when the mask isn't all 1s,
-         * so we can't guarantee allocations that must be
-         * within a tighter range than GFP_DMA..
-         */
-        if(mask < 0x00ffffff)
-                return 0;
-
-       /* Work around chipset bugs */
-       if (forbid_dac > 0 && mask > 0xffffffffULL)
-               return 0;
-
-       return 1;
-}
-
-static inline int
-dma_set_mask(struct device *dev, u64 mask)
-{
-       if(!dev->dma_mask || !dma_supported(dev, mask))
-               return -EIO;
-
-       *dev->dma_mask = mask;
-
-       return 0;
-}
-
-static inline int
 dma_get_cache_alignment(void)
 {
        /* no easy way to get cache size on all x86, so return the

diff --git a/include/asm-x86/dma-mapping_64.h b/include/asm-x86/dma-mapping_64.h
index b1bc6ca..9674dac 100644 (file)
--- a/include/asm-x86/dma-mapping_64.h
+++ b/include/asm-x86/dma-mapping_64.h
@@ -12,8 +12,6 @@ static inline int dma_mapping_error(dma_addr_t dma_addr)
        return (dma_addr == bad_dma_address);
 }
 
-extern int dma_supported(struct device *hwdev, u64 mask);
-
 /* same for gart, swiotlb, and nommu */
 static inline int dma_get_cache_alignment(void)
 {
@@ -22,8 +20,6 @@ static inline int dma_get_cache_alignment(void)
 
 #define dma_is_consistent(d, h) 1
 
-extern int dma_set_mask(struct device *dev, u64 mask);
-
 extern struct device fallback_dev;
 extern int panic_on_overflow;