/* SPDX-License-Identifier: GPL-2.0+ */ /* * Copyright (c) 2011 The Chromium OS Authors. */ #ifndef __SANDBOX_ASM_IO_H #define __SANDBOX_ASM_IO_H enum sandboxio_size_t { SB_SIZE_8, SB_SIZE_16, SB_SIZE_32, SB_SIZE_64, }; void *phys_to_virt(phys_addr_t paddr); #define phys_to_virt phys_to_virt phys_addr_t virt_to_phys(void *vaddr); #define virt_to_phys virt_to_phys void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags); #define map_physmem map_physmem /* * Take down a mapping set up by map_physmem(). */ void unmap_physmem(const void *vaddr, unsigned long flags); #define unmap_physmem unmap_physmem /* Map from a pointer to our RAM buffer */ phys_addr_t map_to_sysmem(const void *ptr); unsigned long sandbox_read(const void *addr, enum sandboxio_size_t size); void sandbox_write(void *addr, unsigned int val, enum sandboxio_size_t size); #define readb(addr) sandbox_read((const void *)addr, SB_SIZE_8) #define readw(addr) sandbox_read((const void *)addr, SB_SIZE_16) #define readl(addr) sandbox_read((const void *)addr, SB_SIZE_32) #ifdef CONFIG_SANDBOX64 #define readq(addr) sandbox_read((const void *)addr, SB_SIZE_64) #endif #define writeb(v, addr) sandbox_write((void *)addr, v, SB_SIZE_8) #define writew(v, addr) sandbox_write((void *)addr, v, SB_SIZE_16) #define writel(v, addr) sandbox_write((void *)addr, v, SB_SIZE_32) #ifdef CONFIG_SANDBOX64 #define writeq(v, addr) sandbox_write((void *)addr, v, SB_SIZE_64) #endif /* * Clear and set bits in one shot. These macros can be used to clear and * set multiple bits in a register using a single call. These macros can * also be used to set a multiple-bit bit pattern using a mask, by * specifying the mask in the 'clear' parameter and the new bit pattern * in the 'set' parameter. */ #define out_arch(type,endian,a,v) write##type(cpu_to_##endian(v),a) #define in_arch(type,endian,a) endian##_to_cpu(read##type(a)) #define out_le64(a,v) out_arch(q,le64,a,v) #define out_le32(a,v) out_arch(l,le32,a,v) #define out_le16(a,v) out_arch(w,le16,a,v) #define in_le64(a) in_arch(q,le64,a) #define in_le32(a) in_arch(l,le32,a) #define in_le16(a) in_arch(w,le16,a) #define out_be32(a,v) out_arch(l,be32,a,v) #define out_be16(a,v) out_arch(w,be16,a,v) #define in_be32(a) in_arch(l,be32,a) #define in_be16(a) in_arch(w,be16,a) #define out_8(a,v) writeb(v,a) #define in_8(a) readb(a) #define clrbits(type, addr, clear) \ out_##type((addr), in_##type(addr) & ~(clear)) #define setbits(type, addr, set) \ out_##type((addr), in_##type(addr) | (set)) #define clrsetbits(type, addr, clear, set) \ out_##type((addr), (in_##type(addr) & ~(clear)) | (set)) #define clrbits_be32(addr, clear) clrbits(be32, addr, clear) #define setbits_be32(addr, set) setbits(be32, addr, set) #define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set) #define clrbits_le32(addr, clear) clrbits(le32, addr, clear) #define setbits_le32(addr, set) setbits(le32, addr, set) #define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set) #define clrbits_be16(addr, clear) clrbits(be16, addr, clear) #define setbits_be16(addr, set) setbits(be16, addr, set) #define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set) #define clrbits_le16(addr, clear) clrbits(le16, addr, clear) #define setbits_le16(addr, set) setbits(le16, addr, set) #define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set) #define clrbits_8(addr, clear) clrbits(8, addr, clear) #define setbits_8(addr, set) setbits(8, addr, set) #define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set) /* I/O access functions */ int _inl(unsigned int addr); int _inw(unsigned int addr); int _inb(unsigned int addr); void _outl(unsigned int value, unsigned int addr); void _outw(unsigned int value, unsigned int addr); void _outb(unsigned int value, unsigned int addr); #define inb(port) _inb((uintptr_t)(port)) #define inw(port) _inw((uintptr_t)(port)) #define inl(port) _inl((uintptr_t)(port)) #define outb(val, port) _outb(val, (uintptr_t)(port)) #define outw(val, port) _outw(val, (uintptr_t)(port)) #define outl(val, port) _outl(val, (uintptr_t)(port)) #define out_arch(type,endian,a,v) write##type(cpu_to_##endian(v),a) #define in_arch(type,endian,a) endian##_to_cpu(read##type(a)) #define out_le32(a,v) out_arch(l,le32,a,v) #define out_le16(a,v) out_arch(w,le16,a,v) #define in_le32(a) in_arch(l,le32,a) #define in_le16(a) in_arch(w,le16,a) #define out_be32(a,v) out_arch(l,be32,a,v) #define out_be16(a,v) out_arch(w,be16,a,v) #define in_be32(a) in_arch(l,be32,a) #define in_be16(a) in_arch(w,be16,a) #define out_8(a,v) writeb(v,a) #define in_8(a) readb(a) #define clrbits(type, addr, clear) \ out_##type((addr), in_##type(addr) & ~(clear)) #define setbits(type, addr, set) \ out_##type((addr), in_##type(addr) | (set)) #define clrsetbits(type, addr, clear, set) \ out_##type((addr), (in_##type(addr) & ~(clear)) | (set)) #define clrbits_be32(addr, clear) clrbits(be32, addr, clear) #define setbits_be32(addr, set) setbits(be32, addr, set) #define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set) #define clrbits_le32(addr, clear) clrbits(le32, addr, clear) #define setbits_le32(addr, set) setbits(le32, addr, set) #define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set) #define clrbits_be16(addr, clear) clrbits(be16, addr, clear) #define setbits_be16(addr, set) setbits(be16, addr, set) #define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set) #define clrbits_le16(addr, clear) clrbits(le16, addr, clear) #define setbits_le16(addr, set) setbits(le16, addr, set) #define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set) #define clrbits_8(addr, clear) clrbits(8, addr, clear) #define setbits_8(addr, set) setbits(8, addr, set) #define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set) static inline void _insw(volatile u16 *port, void *buf, int ns) { } static inline void _outsw(volatile u16 *port, const void *buf, int ns) { } static inline void memset_io(volatile void *addr, unsigned char val, int count) { } static inline void memcpy_fromio(void *dst, const volatile void *src, int count) { } static inline void memcpy_toio(volatile void *dst, const void *src, int count) { } #define insw(port, buf, ns) _insw((u16 *)port, buf, ns) #define outsw(port, buf, ns) _outsw((u16 *)port, buf, ns) /* IO space accessors */ #define clrio(type, addr, clear) \ out##type(in##type(addr) & ~(clear), (addr)) #define setio(type, addr, set) \ out##type(in##type(addr) | (set), (addr)) #define clrsetio(type, addr, clear, set) \ out##type((in##type(addr) & ~(clear)) | (set), (addr)) #define clrio_32(addr, clear) clrio(l, addr, clear) #define clrio_16(addr, clear) clrio(w, addr, clear) #define clrio_8(addr, clear) clrio(b, addr, clear) #define setio_32(addr, set) setio(l, addr, set) #define setio_16(addr, set) setio(w, addr, set) #define setio_8(addr, set) setio(b, addr, set) #define clrsetio_32(addr, clear, set) clrsetio(l, addr, clear, set) #define clrsetio_16(addr, clear, set) clrsetio(w, addr, clear, set) #define clrsetio_8(addr, clear, set) clrsetio(b, addr, clear, set) #include #include #include /* For sandbox, we want addresses to point into our RAM buffer */ static inline void *map_sysmem(phys_addr_t paddr, unsigned long len) { return map_physmem(paddr, len, MAP_WRBACK); } /* Remove a previous mapping */ static inline void unmap_sysmem(const void *vaddr) { unmap_physmem(vaddr, MAP_WRBACK); } #endif