Commit abb4970a authored by Stafford Horne's avatar Stafford Horne Committed by Bjorn Helgaas
Browse files

PCI: Move isa_dma_bridge_buggy out of asm/dma.h 



The isa_dma_bridge_buggy symbol is only used for x86_32, and only x86_32
platforms or quirks ever set it.

Add a new linux/isa-dma.h header that #defines isa_dma_bridge_buggy to 0
except on x86_32, where we keep it as a variable, and remove all the arch-
specific definitions.

[bhelgaas: commit log]
Suggested-by: default avatarArnd Bergmann <arnd@arndb.de>
Suggested-by: default avatarChristoph Hellwig <hch@infradead.org>
Link: https://lore.kernel.org/r/20220722214944.831438-3-shorne@gmail.com


Signed-off-by: default avatarStafford Horne <shorne@gmail.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Acked-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
parent ae85b23c

arch/alpha/include/asm/dma.h

+0 −9
Original line number Diff line number Diff line
@@ -365,13 +365,4 @@ extern void free_dma(unsigned int dmanr); /* release it again */ 
#define KERNEL_HAVE_CHECK_DMA

extern int check_dma(unsigned int dmanr);



/* From PCI */



#ifdef CONFIG_PCI

extern int isa_dma_bridge_buggy;

#else

#define isa_dma_bridge_buggy 	(0)

#endif





#endif /* _ASM_DMA_H */

arch/arc/include/asm/dma.h

+0 −5
Original line number Diff line number Diff line
@@ -7,10 +7,5 @@ 
#define ASM_ARC_DMA_H



#define MAX_DMA_ADDRESS 0xC0000000

#ifdef CONFIG_PCI

extern int isa_dma_bridge_buggy;

#else

#define isa_dma_bridge_buggy	0

#endif



#endif

arch/arm/include/asm/dma.h

+0 −6
Original line number Diff line number Diff line
@@ -143,10 +143,4 @@ extern int get_dma_residue(unsigned int chan); 


#endif /* CONFIG_ISA_DMA_API */



#ifdef CONFIG_PCI

extern int isa_dma_bridge_buggy;

#else

#define isa_dma_bridge_buggy    (0)

#endif



#endif /* __ASM_ARM_DMA_H */

arch/arm64/include/asm/pci.h

+0 −2
Original line number Diff line number Diff line
@@ -20,8 +20,6 @@ 
#define arch_can_pci_mmap_wc() 1

#define ARCH_GENERIC_PCI_MMAP_RESOURCE	1



extern int isa_dma_bridge_buggy;



#ifdef CONFIG_PCI

static inline int pci_proc_domain(struct pci_bus *bus)

{

arch/csky/include/asm/pci.h

+0 −2
Original line number Diff line number Diff line
@@ -15,8 +15,6 @@ 
/* C-SKY shim does not initialize PCI bus */

#define pcibios_assign_all_busses() 1



extern int isa_dma_bridge_buggy;



#ifdef CONFIG_PCI

static inline int pci_proc_domain(struct pci_bus *bus)

{