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[PATCH 11/17] cris: Use generic pci_mmap_resource_range()

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  [PATCH 11/17] cris: Use generic pci_mmap_resource_range() David Woodhouse <dwmw2@infradead.org> - 2017-03-22 14:30 +0100
    Re: [PATCH 11/17] cris: Use generic pci_mmap_resource_range() Jesper Nilsson <jesper.nilsson@axis.com> - 2017-03-22 14:40 +0100

#1606469 — [PATCH 11/17] cris: Use generic pci_mmap_resource_range()

From: David Woodhouse <dwmw@amazon.co.uk>

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
---
 arch/cris/arch-v32/drivers/pci/bios.c | 23 -----------------------
 arch/cris/include/asm/pci.h           |  1 +
 2 files changed, 1 insertion(+), 23 deletions(-)

diff --git a/arch/cris/arch-v32/drivers/pci/bios.c b/arch/cris/arch-v32/drivers/pci/bios.c
index a589686d..394c2a73 100644
--- a/arch/cris/arch-v32/drivers/pci/bios.c
+++ b/arch/cris/arch-v32/drivers/pci/bios.c
@@ -14,29 +14,6 @@ void pcibios_set_master(struct pci_dev *dev)
 	pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
 }
 
-int pci_mmap_page_range(struct pci_dev *dev, int bar,
-			struct vm_area_struct *vma,
-			enum pci_mmap_state mmap_state, int write_combine)
-{
-	unsigned long prot;
-
-	/* Leave vm_pgoff as-is, the PCI space address is the physical
-	 * address on this platform.
-	 */
-	prot = pgprot_val(vma->vm_page_prot);
-	vma->vm_page_prot = __pgprot(prot);
-
-	/* Write-combine setting is ignored, it is changed via the mtrr
-	 * interfaces on this platform.
-	 */
-	if (remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
-			     vma->vm_end - vma->vm_start,
-			     vma->vm_page_prot))
-		return -EAGAIN;
-
-	return 0;
-}
-
 resource_size_t
 pcibios_align_resource(void *data, const struct resource *res,
 		       resource_size_t size, resource_size_t align)
diff --git a/arch/cris/include/asm/pci.h b/arch/cris/include/asm/pci.h
index 65198cb..6e50533 100644
--- a/arch/cris/include/asm/pci.h
+++ b/arch/cris/include/asm/pci.h
@@ -42,6 +42,7 @@ struct pci_dev;
 #define PCI_DMA_BUS_IS_PHYS	(1)
 
 #define HAVE_PCI_MMAP
+#define ARCH_GENERIC_PCI_MMAP_RESOURCE
 
 #endif /* __KERNEL__ */
 
-- 
2.9.3

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#1606492

On Wed, Mar 22, 2017 at 01:25:25PM +0000, David Woodhouse wrote:
> From: David Woodhouse <dwmw@amazon.co.uk>

Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
> ---
>  arch/cris/arch-v32/drivers/pci/bios.c | 23 -----------------------
>  arch/cris/include/asm/pci.h           |  1 +
>  2 files changed, 1 insertion(+), 23 deletions(-)
> 
> diff --git a/arch/cris/arch-v32/drivers/pci/bios.c b/arch/cris/arch-v32/drivers/pci/bios.c
> index a589686d..394c2a73 100644
> --- a/arch/cris/arch-v32/drivers/pci/bios.c
> +++ b/arch/cris/arch-v32/drivers/pci/bios.c
> @@ -14,29 +14,6 @@ void pcibios_set_master(struct pci_dev *dev)
>  	pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
>  }
>  
> -int pci_mmap_page_range(struct pci_dev *dev, int bar,
> -			struct vm_area_struct *vma,
> -			enum pci_mmap_state mmap_state, int write_combine)
> -{
> -	unsigned long prot;
> -
> -	/* Leave vm_pgoff as-is, the PCI space address is the physical
> -	 * address on this platform.
> -	 */
> -	prot = pgprot_val(vma->vm_page_prot);
> -	vma->vm_page_prot = __pgprot(prot);
> -
> -	/* Write-combine setting is ignored, it is changed via the mtrr
> -	 * interfaces on this platform.
> -	 */
> -	if (remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
> -			     vma->vm_end - vma->vm_start,
> -			     vma->vm_page_prot))
> -		return -EAGAIN;
> -
> -	return 0;
> -}
> -
>  resource_size_t
>  pcibios_align_resource(void *data, const struct resource *res,
>  		       resource_size_t size, resource_size_t align)
> diff --git a/arch/cris/include/asm/pci.h b/arch/cris/include/asm/pci.h
> index 65198cb..6e50533 100644
> --- a/arch/cris/include/asm/pci.h
> +++ b/arch/cris/include/asm/pci.h
> @@ -42,6 +42,7 @@ struct pci_dev;
>  #define PCI_DMA_BUS_IS_PHYS	(1)
>  
>  #define HAVE_PCI_MMAP
> +#define ARCH_GENERIC_PCI_MMAP_RESOURCE
>  
>  #endif /* __KERNEL__ */
>  
> -- 
> 2.9.3

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@axis.com

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