diff options
Diffstat (limited to 'arch/arm/include/asm/memory.h')
| -rw-r--r-- | arch/arm/include/asm/memory.h | 35 |
1 files changed, 18 insertions, 17 deletions
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index c79b57bf71c4..9427fd632552 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -134,6 +134,21 @@ */ #define PLAT_PHYS_OFFSET UL(CONFIG_PHYS_OFFSET) +#ifdef CONFIG_XIP_KERNEL +/* + * When referencing data in RAM from the XIP region in a relative manner + * with the MMU off, we need the relative offset between the two physical + * addresses. The macro below achieves this, which is: + * __pa(v_data) - __xip_pa(v_text) + */ +#define PHYS_RELATIVE(v_data, v_text) \ + (((v_data) - PAGE_OFFSET + PLAT_PHYS_OFFSET) - \ + ((v_text) - XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR) + \ + CONFIG_XIP_PHYS_ADDR)) +#else +#define PHYS_RELATIVE(v_data, v_text) ((v_data) - (v_text)) +#endif + #ifndef __ASSEMBLY__ /* @@ -273,14 +288,14 @@ static inline void *phys_to_virt(phys_addr_t x) #define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x))) #define pfn_to_kaddr(pfn) __va((phys_addr_t)(pfn) << PAGE_SHIFT) -extern phys_addr_t (*arch_virt_to_idmap)(unsigned long x); +extern unsigned long (*arch_virt_to_idmap)(unsigned long x); /* * These are for systems that have a hardware interconnect supported alias of * physical memory for idmap purposes. Most cases should leave these - * untouched. + * untouched. Note: this can only return addresses less than 4GiB. */ -static inline phys_addr_t __virt_to_idmap(unsigned long x) +static inline unsigned long __virt_to_idmap(unsigned long x) { if (IS_ENABLED(CONFIG_MMU) && arch_virt_to_idmap) return arch_virt_to_idmap(x); @@ -303,20 +318,6 @@ static inline phys_addr_t __virt_to_idmap(unsigned long x) #define __bus_to_pfn(x) __phys_to_pfn(x) #endif -#ifdef CONFIG_VIRT_TO_BUS -#define virt_to_bus virt_to_bus -static inline __deprecated unsigned long virt_to_bus(void *x) -{ - return __virt_to_bus((unsigned long)x); -} - -#define bus_to_virt bus_to_virt -static inline __deprecated void *bus_to_virt(unsigned long x) -{ - return (void *)__bus_to_virt(x); -} -#endif - /* * Conversion between a struct page and a physical address. * |