From daece59689e76ed55d8863cae04993679a8e844e Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Fri, 12 Aug 2011 00:14:29 +0100 Subject: ARM: 7013/1: P2V: Remove ARM_PATCH_PHYS_VIRT_16BIT This code can be removed now that MSM targets no longer need the 16-bit offsets for P2V. Signed-off-by: Nicolas Pitre Signed-off-by: Stephen Boyd Signed-off-by: Russell King --- arch/arm/include/asm/memory.h | 7 ------- arch/arm/include/asm/module.h | 4 ---- 2 files changed, 11 deletions(-) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index b8de516..441fc4f 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -160,7 +160,6 @@ * so that all we need to do is modify the 8-bit constant field. */ #define __PV_BITS_31_24 0x81000000 -#define __PV_BITS_23_16 0x00810000 extern unsigned long __pv_phys_offset; #define PHYS_OFFSET __pv_phys_offset @@ -178,9 +177,6 @@ static inline unsigned long __virt_to_phys(unsigned long x) { unsigned long t; __pv_stub(x, t, "add", __PV_BITS_31_24); -#ifdef CONFIG_ARM_PATCH_PHYS_VIRT_16BIT - __pv_stub(t, t, "add", __PV_BITS_23_16); -#endif return t; } @@ -188,9 +184,6 @@ static inline unsigned long __phys_to_virt(unsigned long x) { unsigned long t; __pv_stub(x, t, "sub", __PV_BITS_31_24); -#ifdef CONFIG_ARM_PATCH_PHYS_VIRT_16BIT - __pv_stub(t, t, "sub", __PV_BITS_23_16); -#endif return t; } #else diff --git a/arch/arm/include/asm/module.h b/arch/arm/include/asm/module.h index 543b449..6c6809f 100644 --- a/arch/arm/include/asm/module.h +++ b/arch/arm/include/asm/module.h @@ -31,11 +31,7 @@ struct mod_arch_specific { /* Add __virt_to_phys patching state as well */ #ifdef CONFIG_ARM_PATCH_PHYS_VIRT -#ifdef CONFIG_ARM_PATCH_PHYS_VIRT_16BIT -#define MODULE_ARCH_VERMAGIC_P2V "p2v16 " -#else #define MODULE_ARCH_VERMAGIC_P2V "p2v8 " -#endif #else #define MODULE_ARCH_VERMAGIC_P2V "" #endif -- cgit v1.1 From 2bb9839e312ed55a6d5824ffa6077ce3d7d63b1e Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Tue, 5 Jul 2011 22:38:10 -0400 Subject: ARM: introduce atag_offset to replace boot_params MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The boot_params member of the mdesc structure is used to provide a default physical address for the ATAG list. Since this value is fixed at compile time and sometimes based on constants such as ARCH_PHYS_OFFSET, it gets in the way of runtime PHYS_OFFSET and CONFIG_ARM_PATCH_PHYS_VIRT usage. Let's introduce atag_offset which should contains only the relative offset from PHYS_OFFSET instead of an absolute value, in preparation to move all instance of boot_params over to it. Signed-off-by: Nicolas Pitre Tested-by: H Hartley Sweeten Tested-by: Petr Štetiar Acked-by: Arnd Bergmann --- arch/arm/include/asm/mach/arch.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h index 217aa191..cc240c0 100644 --- a/arch/arm/include/asm/mach/arch.h +++ b/arch/arm/include/asm/mach/arch.h @@ -18,6 +18,7 @@ struct machine_desc { unsigned int nr; /* architecture number */ const char *name; /* architecture name */ unsigned long boot_params; /* tagged list */ + unsigned long atag_offset; /* tagged list (relative) */ const char **dt_compat; /* array of device tree * 'compatible' strings */ -- cgit v1.1 From af6871683e25100813d35b3d802f1ed7b90b9f3a Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Tue, 5 Jul 2011 22:38:19 -0400 Subject: ARM: remove boot_params from struct machine_desc Now that there is no more users, we can remove it from the kernel. Signed-off-by: Nicolas Pitre Acked-by: Arnd Bergmann --- arch/arm/include/asm/mach/arch.h | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h index cc240c0..727da11 100644 --- a/arch/arm/include/asm/mach/arch.h +++ b/arch/arm/include/asm/mach/arch.h @@ -17,7 +17,6 @@ struct sys_timer; struct machine_desc { unsigned int nr; /* architecture number */ const char *name; /* architecture name */ - unsigned long boot_params; /* tagged list */ unsigned long atag_offset; /* tagged list (relative) */ const char **dt_compat; /* array of device tree * 'compatible' strings */ -- cgit v1.1 From 99d1717dd7fecf2b10195b0d864323b952b4eba0 Mon Sep 17 00:00:00 2001 From: Jon Medhurst Date: Tue, 2 Aug 2011 17:28:27 +0100 Subject: ARM: Add init_consistent_dma_size() This function can be called during boot to increase the size of the consistent DMA region above it's default value of 2MB. It must be called before the memory allocator is initialised, i.e. before any core_initcall. Signed-off-by: Jon Medhurst Acked-by: Nicolas Pitre --- arch/arm/include/asm/dma-mapping.h | 7 +++++++ arch/arm/include/asm/memory.h | 9 --------- 2 files changed, 7 insertions(+), 9 deletions(-) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 7a21d0b..7f27fab 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -205,6 +205,13 @@ extern void *dma_alloc_writecombine(struct device *, size_t, dma_addr_t *, int dma_mmap_writecombine(struct device *, struct vm_area_struct *, void *, dma_addr_t, size_t); +/* + * This can be called during boot to increase the size of the consistent + * DMA region above it's default value of 2MB. It must be called before the + * memory allocator is initialised, i.e. before any core_initcall. + */ +extern void __init init_consistent_dma_size(unsigned long size); + #ifdef CONFIG_DMABOUNCE /* diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index b8de516..652fccc 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -77,16 +77,7 @@ */ #define IOREMAP_MAX_ORDER 24 -/* - * Size of DMA-consistent memory region. Must be multiple of 2M, - * between 2MB and 14MB inclusive. - */ -#ifndef CONSISTENT_DMA_SIZE -#define CONSISTENT_DMA_SIZE SZ_2M -#endif - #define CONSISTENT_END (0xffe00000UL) -#define CONSISTENT_BASE (CONSISTENT_END - CONSISTENT_DMA_SIZE) #else /* CONFIG_MMU */ -- cgit v1.1 From 1b9f95f8ade9efc2bd49f0e7b9dc61a038ac3eef Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Tue, 5 Jul 2011 22:52:51 -0400 Subject: ARM: prepare for removal of a bunch of files When the CONFIG_NO_MACH_MEMORY_H symbol is selected by a particular machine class, the machine specific memory.h include file is no longer used and can be removed. In that case the equivalent information can be obtained dynamically at runtime by enabling CONFIG_ARM_PATCH_PHYS_VIRT or by specifying the physical memory address at kernel configuration time. If/when all instances of mach/memory.h are removed then this symbol could be removed. Signed-off-by: Nicolas Pitre --- arch/arm/include/asm/memory.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 90bca42..046c915 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -16,9 +16,12 @@ #include #include #include -#include #include +#ifndef CONFIG_NO_MACH_MEMORY_H +#include +#endif + /* * Allow for constants defined here to be used from assembly code * by prepending the UL suffix only with actual C code compilation. @@ -184,7 +187,11 @@ static inline unsigned long __phys_to_virt(unsigned long x) #endif #ifndef PHYS_OFFSET +#ifdef PLAT_PHYS_OFFSET #define PHYS_OFFSET PLAT_PHYS_OFFSET +#else +#define PHYS_OFFSET UL(CONFIG_PHYS_OFFSET) +#endif #endif /* -- cgit v1.1 From 0cdc8b921d68817b687755b4f6ae20cd8ff1d026 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Fri, 2 Sep 2011 22:26:55 -0400 Subject: ARM: switch from NO_MACH_MEMORY_H to NEED_MACH_MEMORY_H Given that we want the default to not have any and given that there are now fewer cases where it is still provided than the cases where it is not at this point, this makes sense to invert the logic and just identify the exception cases. The word "need" instead of "have" was chosen to construct the config symbol so not to suggest that having a mach/memory.h file is actually a feature that one should aim for. Signed-off-by: Nicolas Pitre --- arch/arm/include/asm/memory.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 046c915..a8997d7 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -18,7 +18,7 @@ #include #include -#ifndef CONFIG_NO_MACH_MEMORY_H +#ifdef CONFIG_NEED_MACH_MEMORY_H #include #endif -- cgit v1.1