From: anders.grafstrom@netinsight.net (Anders Grafström)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/7] ARM: dma-mapping: simplify page_to_dma() and __pfn_to_bus()
Date: Sat, 12 Dec 2009 15:01:31 +0100 [thread overview]
Message-ID: <4B23A23B.7070208@netinsight.net> (raw)
In-Reply-To: <E1NBYE2-0005kv-7H@rmk-PC.arm.linux.org.uk>
Russell King - ARM Linux wrote:
> The non-highmem() and the __pfn_to_bus() based page_to_dma() both
> compile to the same code, so its pointless having these two different
> approaches. Use the __pfn_to_bus() based version.
>
> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
> ---
> arch/arm/include/asm/dma-mapping.h | 10 ----------
> arch/arm/include/asm/memory.h | 3 ++-
> 2 files changed, 2 insertions(+), 11 deletions(-)
footbridge doesn't build after this.
Could something like the patch below be in order?
diff --git a/arch/arm/mach-footbridge/include/mach/memory.h b/arch/arm/mach-footbridge/include/mach/memory.h
index cb16e59..cd23276 100644
--- a/arch/arm/mach-footbridge/include/mach/memory.h
+++ b/arch/arm/mach-footbridge/include/mach/memory.h
@@ -51,6 +51,9 @@ extern unsigned long __bus_to_virt(unsigned long);
#endif
+#define __pfn_to_bus(x) __pfn_to_phys(x)
+#define __bus_to_pfn(x) __phys_to_pfn(x)
+
/*
* Cache flushing area.
*/
next prev parent reply other threads:[~2009-12-12 14:01 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-20 18:25 [PATCH 0/7] dma-mapping: Cortex A9 speculative prefetch fixes Russell King - ARM Linux
2009-11-20 18:01 ` [PATCH 1/7] ARM: provide phys_to_page() to complement page_to_phys() Russell King - ARM Linux
2009-11-23 12:05 ` Catalin Marinas
2009-11-20 18:02 ` [PATCH 2/7] ARM: dma-mapping: simplify page_to_dma() and __pfn_to_bus() Russell King - ARM Linux
2009-11-23 12:05 ` [PATCH 2/7] ARM: dma-mapping: simplify page_to_dma() and__pfn_to_bus() Catalin Marinas
2009-12-12 14:01 ` Anders Grafström [this message]
2009-12-12 14:37 ` [PATCH 2/7] ARM: dma-mapping: simplify page_to_dma() and __pfn_to_bus() Russell King - ARM Linux
2009-12-14 18:47 ` Anders Grafström
2009-11-20 18:03 ` [PATCH 3/7] ARM: dma-mapping: provide dma_to_page() Russell King - ARM Linux
2009-11-20 18:04 ` [PATCH 4/7] ARM: dma-mapping: split dma_unmap_page() from dma_unmap_single() Russell King - ARM Linux
2009-11-20 18:05 ` [PATCH 5/7] ARM: dma-mapping: use the idea of buffer ownership Russell King - ARM Linux
2009-11-20 18:06 ` [PATCH 6/7] ARM: dma-mapping: fix for speculative accesses Russell King - ARM Linux
2009-11-23 12:03 ` Catalin Marinas
2009-11-23 12:08 ` Russell King - ARM Linux
2009-11-23 13:38 ` [PATCH v2 06/17] " Russell King - ARM Linux
2009-11-23 15:25 ` saeed bishara
2009-11-23 17:27 ` Russell King - ARM Linux
2009-11-24 15:46 ` saeed bishara
2009-11-24 16:22 ` Russell King - ARM Linux
2009-11-24 16:40 ` saeed bishara
2009-11-24 16:48 ` Catalin Marinas
2009-11-24 17:02 ` Russell King - ARM Linux
2009-11-24 19:12 ` Nicolas Pitre
2009-11-25 12:12 ` Mark Brown
2009-11-24 16:47 ` Catalin Marinas
2009-11-24 20:00 ` Russell King - ARM Linux
2009-11-24 20:35 ` Nicolas Pitre
2009-11-24 21:01 ` Russell King - ARM Linux
2009-11-24 21:46 ` saeed bishara
2009-11-25 12:14 ` Catalin Marinas
2009-11-25 16:26 ` Russell King - ARM Linux
2009-11-26 13:21 ` Ronen Shitrit
2009-11-20 18:07 ` [PATCH 7/7] ARM: dma-mapping: no need to clean overlapping cache lines on invalidate Russell King - ARM Linux
2009-11-22 22:16 ` Nicolas Pitre
2009-11-23 10:26 ` Russell King - ARM Linux
2009-11-23 12:09 ` [PATCH 7/7] ARM: dma-mapping: no need to clean overlapping cachelines " Catalin Marinas
2009-11-23 13:30 ` Russell King - ARM Linux
2009-11-23 13:38 ` [PATCH v2 07/17] ARM: dma-mapping: no need to clean overlapping cache lines " Russell King - ARM Linux
2009-11-23 19:35 ` Nicolas Pitre
2009-11-25 12:19 ` Catalin Marinas
2009-11-25 16:31 ` Russell King - ARM Linux
2009-11-25 17:02 ` [PATCH v2 07/17] ARM: dma-mapping: no need to cleanoverlapping " Catalin Marinas
2009-11-25 17:34 ` [PATCH v2 07/17] ARM: dma-mapping: no need to clean overlapping " Russell King - ARM Linux
2009-11-21 14:00 ` [PATCH 0/7] dma-mapping: Cortex A9 speculative prefetch fixes Jamie Iles
2009-11-23 10:29 ` Russell King - ARM Linux
2010-01-13 6:37 ` muni anda
2010-01-13 8:42 ` Russell King - ARM Linux
2009-11-21 17:56 ` Rajanikanth H.V
2009-11-21 18:57 ` Russell King - ARM Linux
2009-11-21 19:35 ` [PATCH 0/10] dma-mapping: cleanup coherent/writealloc dma allocations and ARMv7 memory support Russell King - ARM Linux
2009-11-21 19:37 ` [PATCH 01/10] ARM: dma-mapping: split out vmregion code from dma coherent mapping code Russell King - ARM Linux
2009-11-21 19:37 ` [PATCH 02/10] ARM: dma-mapping: functions to allocate/free a coherent buffer Russell King - ARM Linux
2009-11-21 19:37 ` [PATCH 03/10] ARM: dma-mapping: fix coherent arch dma_alloc_coherent() Russell King - ARM Linux
2009-11-21 19:38 ` [PATCH 04/10] ARM: dma-mapping: fix nommu dma_alloc_coherent() Russell King - ARM Linux
2009-11-21 19:38 ` [PATCH 05/10] ARM: dma-mapping: factor dma_free_coherent() common code Russell King - ARM Linux
2009-11-21 19:38 ` [PATCH 06/10] ARM: dma-mapping: move consistent_init into CONFIG_MMU section Russell King - ARM Linux
2009-11-22 0:05 ` Greg Ungerer
2009-11-22 0:16 ` Russell King - ARM Linux
2009-11-21 19:38 ` [PATCH 07/10] ARM: dma-mapping: clean up coherent arch dma allocation Russell King - ARM Linux
2009-11-21 19:39 ` [PATCH 08/10] ARM: dma-mapping: Factor out noMMU dma buffer allocation code Russell King - ARM Linux
2009-11-21 19:39 ` [PATCH 09/10] ARM: dma-mapping: get rid of setting/clearing the reserved page bit Russell King - ARM Linux
2009-11-21 19:39 ` [PATCH 10/10] ARM: dma-mapping: switch ARMv7 DMA mappings to retain 'memory' attribute Russell King - ARM Linux
2009-11-23 12:21 ` [PATCH 10/10] ARM: dma-mapping: switch ARMv7 DMA mappings to retain'memory' attribute Catalin Marinas
2009-11-23 7:10 ` [PATCH 0/10] dma-mapping: cleanup coherent/writealloc dma allocations and ARMv7 memory support Greg Ungerer
2009-11-23 10:26 ` Russell King - ARM Linux
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