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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>,
	Sam Ravnborg <sam@ravnborg.org>
Subject: [PATCH v2 01/12] ARM: mmu: Drop custom virt_to_phys/phys_to_virt
Date: Thu, 17 Jan 2019 16:38:16 -0800	[thread overview]
Message-ID: <20190118003827.17517-2-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <20190118003827.17517-1-andrew.smirnov@gmail.com>

Neither ARM nor ARM64 define any address mapping functions that differ
from default provided for no-MMU configuration. Drop all the extra
code and just rely on functions provided in asm/io.h

Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
 arch/arm/cpu/mmu.c        | 10 ----------
 arch/arm/cpu/mmu_64.c     | 10 ----------
 arch/arm/include/asm/io.h |  5 -----
 3 files changed, 25 deletions(-)

diff --git a/arch/arm/cpu/mmu.c b/arch/arm/cpu/mmu.c
index fc48376f6..2b7b9e30a 100644
--- a/arch/arm/cpu/mmu.c
+++ b/arch/arm/cpu/mmu.c
@@ -524,16 +524,6 @@ void *dma_alloc_writecombine(size_t size, dma_addr_t *dma_handle)
 	return dma_alloc_map(size, dma_handle, ARCH_MAP_WRITECOMBINE);
 }
 
-unsigned long virt_to_phys(volatile void *virt)
-{
-	return (unsigned long)virt;
-}
-
-void *phys_to_virt(unsigned long phys)
-{
-	return (void *)phys;
-}
-
 void dma_free_coherent(void *mem, dma_addr_t dma_handle, size_t size)
 {
 	size = PAGE_ALIGN(size);
diff --git a/arch/arm/cpu/mmu_64.c b/arch/arm/cpu/mmu_64.c
index 99ddd5a44..b6f30d1b3 100644
--- a/arch/arm/cpu/mmu_64.c
+++ b/arch/arm/cpu/mmu_64.c
@@ -252,16 +252,6 @@ void mmu_disable(void)
 	isb();
 }
 
-unsigned long virt_to_phys(volatile void *virt)
-{
-	return (unsigned long)virt;
-}
-
-void *phys_to_virt(unsigned long phys)
-{
-	return (void *)phys;
-}
-
 void *dma_alloc_coherent(size_t size, dma_addr_t *dma_handle)
 {
 	void *ret;
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index d06ff8323..56db54634 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -69,10 +69,6 @@ extern void memset_io(volatile void __iomem *, int, size_t);
 #define setbits_8(addr, set) setbits(8, addr, set)
 #define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set)
 
-#ifdef CONFIG_MMU
-void *phys_to_virt(unsigned long phys);
-unsigned long virt_to_phys(volatile void *virt);
-#else
 static inline void *phys_to_virt(unsigned long phys)
 {
 	return (void *)phys;
@@ -82,6 +78,5 @@ static inline unsigned long virt_to_phys(volatile void *mem)
 {
 	return (unsigned long)mem;
 }
-#endif
 
 #endif	/* __ASM_ARM_IO_H */
-- 
2.20.1


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  reply	other threads:[~2019-01-18  0:38 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-18  0:38 [PATCH v2 00/12] ARM/ARM64 MMU code consolidation, zeroing of DMA coherent memory Andrey Smirnov
2019-01-18  0:38 ` Andrey Smirnov [this message]
2019-01-18  0:38 ` [PATCH v2 02/12] ARM: mmu: Simplify the use of dma_inv_range() Andrey Smirnov
2019-01-18  0:38 ` [PATCH v2 03/12] ARM: mmu: Share code for dma_(un)map_single() Andrey Smirnov
2019-01-18  0:38 ` [PATCH v2 04/12] ARM64: mmu: Use arch_remap_range() internally Andrey Smirnov
2019-01-18  0:38 ` [PATCH v2 05/12] ARM64: mmu: Merge create_sections() and map_region() together Andrey Smirnov
2019-01-18  0:38 ` [PATCH v2 06/12] ARM: mmu: Share code for dma_free_coherent() Andrey Smirnov
2019-01-18  0:38 ` [PATCH v2 07/12] ARM64: mmu: Invalidate memory before remapping as DMA coherent Andrey Smirnov
2019-01-18  0:38 ` [PATCH v2 08/12] ARM: mmu: Share code for dma_alloc_coherent() Andrey Smirnov
2019-01-18  0:38 ` [PATCH v2 09/12] ARM: mmu: Share code for dma_sync_single_for_cpu() Andrey Smirnov
2019-01-18  0:38 ` [PATCH v2 10/12] ARM: mmu: Share sanity checking code in mmu_init() Andrey Smirnov
2019-01-18  0:38 ` [PATCH v2 11/12] ARM: mmu: Share code for arm_mmu_not_initialized_error() Andrey Smirnov
2019-01-18  0:38 ` [PATCH v2 12/12] ARM: mmu: Make sure DMA coherent memory is zeroed out Andrey Smirnov
2019-01-21  7:34 ` [PATCH v2 00/12] ARM/ARM64 MMU code consolidation, zeroing of DMA coherent memory Sascha Hauer

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