diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2015-04-26 16:49:24 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2015-04-26 16:49:24 +0100 |
| commit | 500131154d677930fce35ec3a6f0b5a26bcd2973 (patch) | |
| tree | ffbf25649fe043499bd59284f0b81cf7aa2b7e9c /include/exec | |
| parent | 5c9eb0286c819c1836220a32f2e1a7b5004ac79a (diff) | |
exec.c: Add new address_space_ld*/st* functions
Add new address_space_ld*/st* functions which allow transaction
attributes and error reporting for basic load and stores. These
are named to be in line with the address_space_read/write/rw
buffer operations.
The existing ld/st*_phys functions are now wrappers around
the new functions.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Diffstat (limited to 'include/exec')
| -rw-r--r-- | include/exec/memory.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/include/exec/memory.h b/include/exec/memory.h index cafd590b92..2f386cecb7 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -1153,6 +1153,73 @@ MemTxResult address_space_write(AddressSpace *as, hwaddr addr, MemTxResult address_space_read(AddressSpace *as, hwaddr addr, MemTxAttrs attrs, uint8_t *buf, int len); +/** + * address_space_ld*: load from an address space + * address_space_st*: store to an address space + * + * These functions perform a load or store of the byte, word, + * longword or quad to the specified address within the AddressSpace. + * The _le suffixed functions treat the data as little endian; + * _be indicates big endian; no suffix indicates "same endianness + * as guest CPU". + * + * The "guest CPU endianness" accessors are deprecated for use outside + * target-* code; devices should be CPU-agnostic and use either the LE + * or the BE accessors. + * + * @as #AddressSpace to be accessed + * @addr: address within that address space + * @val: data value, for stores + * @attrs: memory transaction attributes + * @result: location to write the success/failure of the transaction; + * if NULL, this information is discarded + */ +uint32_t address_space_ldub(AddressSpace *as, hwaddr addr, + MemTxAttrs attrs, MemTxResult *result); +uint32_t address_space_lduw_le(AddressSpace *as, hwaddr addr, + MemTxAttrs attrs, MemTxResult *result); +uint32_t address_space_lduw_be(AddressSpace *as, hwaddr addr, + MemTxAttrs attrs, MemTxResult *result); +uint32_t address_space_ldl_le(AddressSpace *as, hwaddr addr, + MemTxAttrs attrs, MemTxResult *result); +uint32_t address_space_ldl_be(AddressSpace *as, hwaddr addr, + MemTxAttrs attrs, MemTxResult *result); +uint64_t address_space_ldq_le(AddressSpace *as, hwaddr addr, + MemTxAttrs attrs, MemTxResult *result); +uint64_t address_space_ldq_be(AddressSpace *as, hwaddr addr, + MemTxAttrs attrs, MemTxResult *result); +void address_space_stb(AddressSpace *as, hwaddr addr, uint32_t val, + MemTxAttrs attrs, MemTxResult *result); +void address_space_stw_le(AddressSpace *as, hwaddr addr, uint32_t val, + MemTxAttrs attrs, MemTxResult *result); +void address_space_stw_be(AddressSpace *as, hwaddr addr, uint32_t val, + MemTxAttrs attrs, MemTxResult *result); +void address_space_stl_le(AddressSpace *as, hwaddr addr, uint32_t val, + MemTxAttrs attrs, MemTxResult *result); +void address_space_stl_be(AddressSpace *as, hwaddr addr, uint32_t val, + MemTxAttrs attrs, MemTxResult *result); +void address_space_stq_le(AddressSpace *as, hwaddr addr, uint64_t val, + MemTxAttrs attrs, MemTxResult *result); +void address_space_stq_be(AddressSpace *as, hwaddr addr, uint64_t val, + MemTxAttrs attrs, MemTxResult *result); + +#ifdef NEED_CPU_H +uint32_t address_space_lduw(AddressSpace *as, hwaddr addr, + MemTxAttrs attrs, MemTxResult *result); +uint32_t address_space_ldl(AddressSpace *as, hwaddr addr, + MemTxAttrs attrs, MemTxResult *result); +uint64_t address_space_ldq(AddressSpace *as, hwaddr addr, + MemTxAttrs attrs, MemTxResult *result); +void address_space_stl_notdirty(AddressSpace *as, hwaddr addr, uint32_t val, + MemTxAttrs attrs, MemTxResult *result); +void address_space_stw(AddressSpace *as, hwaddr addr, uint32_t val, + MemTxAttrs attrs, MemTxResult *result); +void address_space_stl(AddressSpace *as, hwaddr addr, uint32_t val, + MemTxAttrs attrs, MemTxResult *result); +void address_space_stq(AddressSpace *as, hwaddr addr, uint64_t val, + MemTxAttrs attrs, MemTxResult *result); +#endif + /* address_space_translate: translate an address range into an address space * into a MemoryRegion and an address range into that section * |