diff mbox series

[09/11] swiotlb-xen: remove page-coherent.h

Message ID 20190826121944.515-10-hch@lst.de (mailing list archive)
State Superseded
Headers show
Series [01/11] xen/arm: use dma-noncoherent.h calls for xen-swiotlb cache maintainance | expand

Commit Message

Christoph Hellwig Aug. 26, 2019, 12:19 p.m. UTC 
The only thing left of page-coherent.h is two functions implemented by
the architecture for non-coherent DMA support that are never called for
fully coherent architectures.  Just move the prototypes for those to
swiotlb-xen.h instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/arm/include/asm/xen/page-coherent.h   |  2 --
 arch/arm64/include/asm/xen/page-coherent.h |  2 --
 arch/x86/include/asm/xen/page-coherent.h   | 11 -----------
 drivers/xen/swiotlb-xen.c                  |  3 ---
 include/Kbuild                             |  1 -
 include/xen/arm/page-coherent.h            | 10 ----------
 include/xen/swiotlb-xen.h                  |  6 ++++++
 7 files changed, 6 insertions(+), 29 deletions(-)
 delete mode 100644 arch/arm/include/asm/xen/page-coherent.h
 delete mode 100644 arch/arm64/include/asm/xen/page-coherent.h
 delete mode 100644 arch/x86/include/asm/xen/page-coherent.h
 delete mode 100644 include/xen/arm/page-coherent.h

Comments

Stefano Stabellini Aug. 29, 2019, 10:48 p.m. UTC | #1 
On Mon, 26 Aug 2019, Christoph Hellwig wrote:
> The only thing left of page-coherent.h is two functions implemented by
> the architecture for non-coherent DMA support that are never called for
> fully coherent architectures.  Just move the prototypes for those to
> swiotlb-xen.h instead.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>


> ---
>  arch/arm/include/asm/xen/page-coherent.h   |  2 --
>  arch/arm64/include/asm/xen/page-coherent.h |  2 --
>  arch/x86/include/asm/xen/page-coherent.h   | 11 -----------
>  drivers/xen/swiotlb-xen.c                  |  3 ---
>  include/Kbuild                             |  1 -
>  include/xen/arm/page-coherent.h            | 10 ----------
>  include/xen/swiotlb-xen.h                  |  6 ++++++
>  7 files changed, 6 insertions(+), 29 deletions(-)
>  delete mode 100644 arch/arm/include/asm/xen/page-coherent.h
>  delete mode 100644 arch/arm64/include/asm/xen/page-coherent.h
>  delete mode 100644 arch/x86/include/asm/xen/page-coherent.h
>  delete mode 100644 include/xen/arm/page-coherent.h
> 
> diff --git a/arch/arm/include/asm/xen/page-coherent.h b/arch/arm/include/asm/xen/page-coherent.h
> deleted file mode 100644
> index 27e984977402..000000000000
> --- a/arch/arm/include/asm/xen/page-coherent.h
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> -#include <xen/arm/page-coherent.h>
> diff --git a/arch/arm64/include/asm/xen/page-coherent.h b/arch/arm64/include/asm/xen/page-coherent.h
> deleted file mode 100644
> index 27e984977402..000000000000
> --- a/arch/arm64/include/asm/xen/page-coherent.h
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> -#include <xen/arm/page-coherent.h>
> diff --git a/arch/x86/include/asm/xen/page-coherent.h b/arch/x86/include/asm/xen/page-coherent.h
> deleted file mode 100644
> index c9c8398a31ff..000000000000
> --- a/arch/x86/include/asm/xen/page-coherent.h
> +++ /dev/null
> @@ -1,11 +0,0 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> -#ifndef _ASM_X86_XEN_PAGE_COHERENT_H
> -#define _ASM_X86_XEN_PAGE_COHERENT_H
> -
> -static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
> -		dma_addr_t handle, size_t size, enum dma_data_direction dir) { }
> -
> -static inline void xen_dma_sync_single_for_device(struct device *hwdev,
> -		dma_addr_t handle, size_t size, enum dma_data_direction dir) { }
> -
> -#endif /* _ASM_X86_XEN_PAGE_COHERENT_H */
> diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
> index a642e284f1e2..95911ff9c11c 100644
> --- a/drivers/xen/swiotlb-xen.c
> +++ b/drivers/xen/swiotlb-xen.c
> @@ -35,9 +35,6 @@
>  #include <xen/xen-ops.h>
>  #include <xen/hvc-console.h>
>  
> -#include <asm/dma-mapping.h>
> -#include <asm/xen/page-coherent.h>
> -
>  #include <trace/events/swiotlb.h>
>  /*
>   * Used to do a quick range check in swiotlb_tbl_unmap_single and
> diff --git a/include/Kbuild b/include/Kbuild
> index c38f0d46b267..cce5cf6abf89 100644
> --- a/include/Kbuild
> +++ b/include/Kbuild
> @@ -1189,7 +1189,6 @@ header-test-			+= video/vga.h
>  header-test-			+= video/w100fb.h
>  header-test-			+= xen/acpi.h
>  header-test-			+= xen/arm/hypercall.h
> -header-test-			+= xen/arm/page-coherent.h
>  header-test-			+= xen/arm/page.h
>  header-test-			+= xen/balloon.h
>  header-test-			+= xen/events.h
> diff --git a/include/xen/arm/page-coherent.h b/include/xen/arm/page-coherent.h
> deleted file mode 100644
> index 635492d41ebe..000000000000
> --- a/include/xen/arm/page-coherent.h
> +++ /dev/null
> @@ -1,10 +0,0 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> -#ifndef _XEN_ARM_PAGE_COHERENT_H
> -#define _XEN_ARM_PAGE_COHERENT_H
> -
> -void xen_dma_sync_for_cpu(struct device *dev, dma_addr_t handle,
> -		phys_addr_t paddr, size_t size, enum dma_data_direction dir);
> -void xen_dma_sync_for_device(struct device *dev, dma_addr_t handle,
> -		phys_addr_t paddr, size_t size, enum dma_data_direction dir);
> -
> -#endif /* _XEN_ARM_PAGE_COHERENT_H */
> diff --git a/include/xen/swiotlb-xen.h b/include/xen/swiotlb-xen.h
> index 5e4b83f83dbc..a7c642872568 100644
> --- a/include/xen/swiotlb-xen.h
> +++ b/include/xen/swiotlb-xen.h
> @@ -2,8 +2,14 @@
>  #ifndef __LINUX_SWIOTLB_XEN_H
>  #define __LINUX_SWIOTLB_XEN_H
>  
> +#include <linux/dma-mapping.h>
>  #include <linux/swiotlb.h>
>  
> +void xen_dma_sync_for_cpu(struct device *dev, dma_addr_t handle,
> +		phys_addr_t paddr, size_t size, enum dma_data_direction dir);
> +void xen_dma_sync_for_device(struct device *dev, dma_addr_t handle,
> +		phys_addr_t paddr, size_t size, enum dma_data_direction dir);
> +
>  extern int xen_swiotlb_init(int verbose, bool early);
>  extern const struct dma_map_ops xen_swiotlb_dma_ops;
>  
> -- 
> 2.20.1
>
diff mbox series

Patch

diff --git a/arch/arm/include/asm/xen/page-coherent.h b/arch/arm/include/asm/xen/page-coherent.h
deleted file mode 100644
index 27e984977402..000000000000
--- a/arch/arm/include/asm/xen/page-coherent.h
+++ /dev/null
@@ -1,2 +0,0 @@ 
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <xen/arm/page-coherent.h>
diff --git a/arch/arm64/include/asm/xen/page-coherent.h b/arch/arm64/include/asm/xen/page-coherent.h
deleted file mode 100644
index 27e984977402..000000000000
--- a/arch/arm64/include/asm/xen/page-coherent.h
+++ /dev/null
@@ -1,2 +0,0 @@ 
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <xen/arm/page-coherent.h>
diff --git a/arch/x86/include/asm/xen/page-coherent.h b/arch/x86/include/asm/xen/page-coherent.h
deleted file mode 100644
index c9c8398a31ff..000000000000
--- a/arch/x86/include/asm/xen/page-coherent.h
+++ /dev/null
@@ -1,11 +0,0 @@ 
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_X86_XEN_PAGE_COHERENT_H
-#define _ASM_X86_XEN_PAGE_COHERENT_H
-
-static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
-		dma_addr_t handle, size_t size, enum dma_data_direction dir) { }
-
-static inline void xen_dma_sync_single_for_device(struct device *hwdev,
-		dma_addr_t handle, size_t size, enum dma_data_direction dir) { }
-
-#endif /* _ASM_X86_XEN_PAGE_COHERENT_H */
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index a642e284f1e2..95911ff9c11c 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -35,9 +35,6 @@ 
 #include <xen/xen-ops.h>
 #include <xen/hvc-console.h>
 
-#include <asm/dma-mapping.h>
-#include <asm/xen/page-coherent.h>
-
 #include <trace/events/swiotlb.h>
 /*
  * Used to do a quick range check in swiotlb_tbl_unmap_single and
diff --git a/include/Kbuild b/include/Kbuild
index c38f0d46b267..cce5cf6abf89 100644
--- a/include/Kbuild
+++ b/include/Kbuild
@@ -1189,7 +1189,6 @@  header-test-			+= video/vga.h
 header-test-			+= video/w100fb.h
 header-test-			+= xen/acpi.h
 header-test-			+= xen/arm/hypercall.h
-header-test-			+= xen/arm/page-coherent.h
 header-test-			+= xen/arm/page.h
 header-test-			+= xen/balloon.h
 header-test-			+= xen/events.h
diff --git a/include/xen/arm/page-coherent.h b/include/xen/arm/page-coherent.h
deleted file mode 100644
index 635492d41ebe..000000000000
--- a/include/xen/arm/page-coherent.h
+++ /dev/null
@@ -1,10 +0,0 @@ 
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _XEN_ARM_PAGE_COHERENT_H
-#define _XEN_ARM_PAGE_COHERENT_H
-
-void xen_dma_sync_for_cpu(struct device *dev, dma_addr_t handle,
-		phys_addr_t paddr, size_t size, enum dma_data_direction dir);
-void xen_dma_sync_for_device(struct device *dev, dma_addr_t handle,
-		phys_addr_t paddr, size_t size, enum dma_data_direction dir);
-
-#endif /* _XEN_ARM_PAGE_COHERENT_H */
diff --git a/include/xen/swiotlb-xen.h b/include/xen/swiotlb-xen.h
index 5e4b83f83dbc..a7c642872568 100644
--- a/include/xen/swiotlb-xen.h
+++ b/include/xen/swiotlb-xen.h
@@ -2,8 +2,14 @@ 
 #ifndef __LINUX_SWIOTLB_XEN_H
 #define __LINUX_SWIOTLB_XEN_H
 
+#include <linux/dma-mapping.h>
 #include <linux/swiotlb.h>
 
+void xen_dma_sync_for_cpu(struct device *dev, dma_addr_t handle,
+		phys_addr_t paddr, size_t size, enum dma_data_direction dir);
+void xen_dma_sync_for_device(struct device *dev, dma_addr_t handle,
+		phys_addr_t paddr, size_t size, enum dma_data_direction dir);
+
 extern int xen_swiotlb_init(int verbose, bool early);
 extern const struct dma_map_ops xen_swiotlb_dma_ops;