tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 0b58e108042b0ed28a71cd7edf5175999955b233 commit: cabff60ca77da6cb460988e2af40bde95776d92b [1907/10451] cache: Add StarFive StarLink cache management config: riscv-randconfig-r133-20240704 (https://download.01.org/0day-ci/archive/20240705/202407050803.hJqMoDsx-lkp@xxxxxxxxx/config) compiler: riscv32-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20240705/202407050803.hJqMoDsx-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202407050803.hJqMoDsx-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from drivers/cache/starfive_starlink_cache.c:12: drivers/cache/starfive_starlink_cache.c: In function 'starlink_cache_flush_complete': >> include/linux/iopoll.h:179:35: error: implicit declaration of function 'readq'; did you mean 'readw'? [-Werror=implicit-function-declaration] 179 | readx_poll_timeout_atomic(readq, addr, val, cond, delay_us, timeout_us) | ^~~~~ include/linux/iopoll.h:97:25: note: in definition of macro 'read_poll_timeout_atomic' 97 | (val) = op(args); \ | ^~ include/linux/iopoll.h:179:9: note: in expansion of macro 'readx_poll_timeout_atomic' 179 | readx_poll_timeout_atomic(readq, addr, val, cond, delay_us, timeout_us) | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/cache/starfive_starlink_cache.c:40:15: note: in expansion of macro 'readq_poll_timeout_atomic' 40 | ret = readq_poll_timeout_atomic(ctl, v, !(v & STARLINK_CACHE_FLUSH_CTL_ENABLE_MASK), | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/cache/starfive_starlink_cache.c: In function 'starlink_cache_dma_cache_wback': >> drivers/cache/starfive_starlink_cache.c:49:9: error: implicit declaration of function 'writeq'; did you mean 'writel'? [-Werror=implicit-function-declaration] 49 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr), | ^~~~~~ | writel In file included from <command-line>: include/uapi/linux/bits.h:9:19: warning: right shift count is negative [-Wshift-count-negative] 9 | (~_UL(0) >> (__BITS_PER_LONG - 1 - (h)))) | ^~ include/linux/compiler_types.h:467:23: note: in definition of macro '__compiletime_assert' 467 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:487:9: note: in expansion of macro '_compiletime_assert' 487 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:65:17: note: in expansion of macro 'BUILD_BUG_ON_MSG' 65 | BUILD_BUG_ON_MSG(!__builtin_constant_p(_mask), \ | ^~~~~~~~~~~~~~~~ include/linux/bitfield.h:115:17: note: in expansion of macro '__BF_FIELD_CHECK' 115 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ | ^~~~~~~~~~~~~~~~ drivers/cache/starfive_starlink_cache.c:49:16: note: in expansion of macro 'FIELD_PREP' 49 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr), | ^~~~~~~~~~ include/linux/bits.h:35:38: note: in expansion of macro '__GENMASK' 35 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~ drivers/cache/starfive_starlink_cache.c:22:57: note: in expansion of macro 'GENMASK' 22 | #define STARLINK_CACHE_ADDRESS_RANGE_MASK GENMASK(39, 0) | ^~~~~~~ drivers/cache/starfive_starlink_cache.c:49:27: note: in expansion of macro 'STARLINK_CACHE_ADDRESS_RANGE_MASK' 49 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/uapi/linux/bits.h:9:19: warning: right shift count is negative [-Wshift-count-negative] 9 | (~_UL(0) >> (__BITS_PER_LONG - 1 - (h)))) | ^~ include/linux/compiler_types.h:467:23: note: in definition of macro '__compiletime_assert' 467 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:487:9: note: in expansion of macro '_compiletime_assert' 487 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:67:17: note: in expansion of macro 'BUILD_BUG_ON_MSG' 67 | BUILD_BUG_ON_MSG((_mask) == 0, _pfx "mask is zero"); \ | ^~~~~~~~~~~~~~~~ include/linux/bitfield.h:115:17: note: in expansion of macro '__BF_FIELD_CHECK' 115 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ | ^~~~~~~~~~~~~~~~ drivers/cache/starfive_starlink_cache.c:49:16: note: in expansion of macro 'FIELD_PREP' 49 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr), | ^~~~~~~~~~ include/linux/bits.h:35:38: note: in expansion of macro '__GENMASK' 35 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~ drivers/cache/starfive_starlink_cache.c:22:57: note: in expansion of macro 'GENMASK' 22 | #define STARLINK_CACHE_ADDRESS_RANGE_MASK GENMASK(39, 0) | ^~~~~~~ drivers/cache/starfive_starlink_cache.c:49:27: note: in expansion of macro 'STARLINK_CACHE_ADDRESS_RANGE_MASK' 49 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/uapi/linux/bits.h:9:19: warning: right shift count is negative [-Wshift-count-negative] 9 | (~_UL(0) >> (__BITS_PER_LONG - 1 - (h)))) | ^~ include/linux/compiler_types.h:467:23: note: in definition of macro '__compiletime_assert' 467 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:487:9: note: in expansion of macro '_compiletime_assert' 487 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:68:17: note: in expansion of macro 'BUILD_BUG_ON_MSG' 68 | BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ? \ | ^~~~~~~~~~~~~~~~ include/linux/bitfield.h:115:17: note: in expansion of macro '__BF_FIELD_CHECK' 115 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ | ^~~~~~~~~~~~~~~~ drivers/cache/starfive_starlink_cache.c:49:16: note: in expansion of macro 'FIELD_PREP' 49 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr), | ^~~~~~~~~~ include/linux/bits.h:35:38: note: in expansion of macro '__GENMASK' 35 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~ drivers/cache/starfive_starlink_cache.c:22:57: note: in expansion of macro 'GENMASK' 22 | #define STARLINK_CACHE_ADDRESS_RANGE_MASK GENMASK(39, 0) | ^~~~~~~ drivers/cache/starfive_starlink_cache.c:49:27: note: in expansion of macro 'STARLINK_CACHE_ADDRESS_RANGE_MASK' 49 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/uapi/linux/bits.h:9:19: warning: right shift count is negative [-Wshift-count-negative] 9 | (~_UL(0) >> (__BITS_PER_LONG - 1 - (h)))) | ^~ include/linux/compiler_types.h:467:23: note: in definition of macro '__compiletime_assert' 467 | if (!(condition)) \ | ^~~~~~~~~ -- include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG' 50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) | ^~~~~~~~~~~~~~~~ include/linux/build_bug.h:21:9: note: in expansion of macro 'BUILD_BUG_ON' 21 | BUILD_BUG_ON(((n) & ((n) - 1)) != 0) | ^~~~~~~~~~~~ include/linux/bitfield.h:75:17: note: in expansion of macro '__BUILD_BUG_ON_NOT_POWER_OF_2' 75 | __BUILD_BUG_ON_NOT_POWER_OF_2((_mask) + \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:115:17: note: in expansion of macro '__BF_FIELD_CHECK' 115 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ | ^~~~~~~~~~~~~~~~ drivers/cache/starfive_starlink_cache.c:81:16: note: in expansion of macro 'FIELD_PREP' 81 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr + size), | ^~~~~~~~~~ include/linux/bits.h:35:38: note: in expansion of macro '__GENMASK' 35 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~ drivers/cache/starfive_starlink_cache.c:22:57: note: in expansion of macro 'GENMASK' 22 | #define STARLINK_CACHE_ADDRESS_RANGE_MASK GENMASK(39, 0) | ^~~~~~~ drivers/cache/starfive_starlink_cache.c:81:27: note: in expansion of macro 'STARLINK_CACHE_ADDRESS_RANGE_MASK' 81 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr + size), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/uapi/linux/bits.h:9:19: warning: right shift count is negative [-Wshift-count-negative] 9 | (~_UL(0) >> (__BITS_PER_LONG - 1 - (h)))) | ^~ include/linux/compiler_types.h:467:23: note: in definition of macro '__compiletime_assert' 467 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:487:9: note: in expansion of macro '_compiletime_assert' 487 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG' 50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) | ^~~~~~~~~~~~~~~~ include/linux/build_bug.h:21:9: note: in expansion of macro 'BUILD_BUG_ON' 21 | BUILD_BUG_ON(((n) & ((n) - 1)) != 0) | ^~~~~~~~~~~~ include/linux/bitfield.h:75:17: note: in expansion of macro '__BUILD_BUG_ON_NOT_POWER_OF_2' 75 | __BUILD_BUG_ON_NOT_POWER_OF_2((_mask) + \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:76:56: note: in expansion of macro '__bf_shf' 76 | (1ULL << __bf_shf(_mask))); \ | ^~~~~~~~ include/linux/bitfield.h:115:17: note: in expansion of macro '__BF_FIELD_CHECK' 115 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ | ^~~~~~~~~~~~~~~~ drivers/cache/starfive_starlink_cache.c:81:16: note: in expansion of macro 'FIELD_PREP' 81 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr + size), | ^~~~~~~~~~ include/linux/bits.h:35:38: note: in expansion of macro '__GENMASK' 35 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~ drivers/cache/starfive_starlink_cache.c:22:57: note: in expansion of macro 'GENMASK' 22 | #define STARLINK_CACHE_ADDRESS_RANGE_MASK GENMASK(39, 0) | ^~~~~~~ drivers/cache/starfive_starlink_cache.c:81:27: note: in expansion of macro 'STARLINK_CACHE_ADDRESS_RANGE_MASK' 81 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr + size), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/uapi/linux/bits.h:9:19: warning: right shift count is negative [-Wshift-count-negative] 9 | (~_UL(0) >> (__BITS_PER_LONG - 1 - (h)))) | ^~ include/linux/bitfield.h:45:38: note: in definition of macro '__bf_shf' 45 | #define __bf_shf(x) (__builtin_ffsll(x) - 1) | ^ drivers/cache/starfive_starlink_cache.c:81:16: note: in expansion of macro 'FIELD_PREP' 81 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr + size), | ^~~~~~~~~~ include/linux/bits.h:35:38: note: in expansion of macro '__GENMASK' 35 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~ drivers/cache/starfive_starlink_cache.c:22:57: note: in expansion of macro 'GENMASK' 22 | #define STARLINK_CACHE_ADDRESS_RANGE_MASK GENMASK(39, 0) | ^~~~~~~ drivers/cache/starfive_starlink_cache.c:81:27: note: in expansion of macro 'STARLINK_CACHE_ADDRESS_RANGE_MASK' 81 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr + size), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/uapi/linux/bits.h:9:19: warning: right shift count is negative [-Wshift-count-negative] 9 | (~_UL(0) >> (__BITS_PER_LONG - 1 - (h)))) | ^~ include/linux/bitfield.h:116:63: note: in definition of macro 'FIELD_PREP' 116 | ((typeof(_mask))(_val) << __bf_shf(_mask)) & (_mask); \ | ^~~~~ include/linux/bits.h:35:38: note: in expansion of macro '__GENMASK' 35 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~ drivers/cache/starfive_starlink_cache.c:22:57: note: in expansion of macro 'GENMASK' 22 | #define STARLINK_CACHE_ADDRESS_RANGE_MASK GENMASK(39, 0) | ^~~~~~~ drivers/cache/starfive_starlink_cache.c:81:27: note: in expansion of macro 'STARLINK_CACHE_ADDRESS_RANGE_MASK' 81 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr + size), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/cache/starfive_starlink_cache.c: At top level: >> drivers/cache/starfive_starlink_cache.c:93:18: error: initialization of 'void (*)(phys_addr_t, size_t)' {aka 'void (*)(unsigned int, unsigned int)'} from incompatible pointer type 'void (*)(phys_addr_t, long unsigned int)' {aka 'void (*)(unsigned int, long unsigned int)'} [-Werror=incompatible-pointer-types] 93 | .wback = &starlink_cache_dma_cache_wback, | ^ drivers/cache/starfive_starlink_cache.c:93:18: note: (near initialization for 'starlink_cache_ops.wback') drivers/cache/starfive_starlink_cache.c:94:16: error: initialization of 'void (*)(phys_addr_t, size_t)' {aka 'void (*)(unsigned int, unsigned int)'} from incompatible pointer type 'void (*)(phys_addr_t, long unsigned int)' {aka 'void (*)(unsigned int, long unsigned int)'} [-Werror=incompatible-pointer-types] 94 | .inv = &starlink_cache_dma_cache_invalidate, | ^ drivers/cache/starfive_starlink_cache.c:94:16: note: (near initialization for 'starlink_cache_ops.inv') drivers/cache/starfive_starlink_cache.c:95:22: error: initialization of 'void (*)(phys_addr_t, size_t)' {aka 'void (*)(unsigned int, unsigned int)'} from incompatible pointer type 'void (*)(phys_addr_t, long unsigned int)' {aka 'void (*)(unsigned int, long unsigned int)'} [-Werror=incompatible-pointer-types] 95 | .wback_inv = &starlink_cache_dma_cache_wback_inv, | ^ drivers/cache/starfive_starlink_cache.c:95:22: note: (near initialization for 'starlink_cache_ops.wback_inv') drivers/cache/starfive_starlink_cache.c: In function 'starlink_cache_dma_cache_wback_inv': >> include/linux/compiler_types.h:487:45: error: call to '__compiletime_assert_479' declared with attribute error: FIELD_PREP: mask is zero 487 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^ include/linux/compiler_types.h:468:25: note: in definition of macro '__compiletime_assert' 468 | prefix ## suffix(); \ | ^~~~~~ include/linux/compiler_types.h:487:9: note: in expansion of macro '_compiletime_assert' 487 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:67:17: note: in expansion of macro 'BUILD_BUG_ON_MSG' 67 | BUILD_BUG_ON_MSG((_mask) == 0, _pfx "mask is zero"); \ | ^~~~~~~~~~~~~~~~ include/linux/bitfield.h:115:17: note: in expansion of macro '__BF_FIELD_CHECK' 115 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ | ^~~~~~~~~~~~~~~~ drivers/cache/starfive_starlink_cache.c:79:16: note: in expansion of macro 'FIELD_PREP' 79 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr), | ^~~~~~~~~~ drivers/cache/starfive_starlink_cache.c: In function 'starlink_cache_dma_cache_invalidate': include/linux/compiler_types.h:487:45: error: call to '__compiletime_assert_464' declared with attribute error: FIELD_PREP: mask is zero 487 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^ include/linux/compiler_types.h:468:25: note: in definition of macro '__compiletime_assert' 468 | prefix ## suffix(); \ | ^~~~~~ include/linux/compiler_types.h:487:9: note: in expansion of macro '_compiletime_assert' 487 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:67:17: note: in expansion of macro 'BUILD_BUG_ON_MSG' 67 | BUILD_BUG_ON_MSG((_mask) == 0, _pfx "mask is zero"); \ | ^~~~~~~~~~~~~~~~ include/linux/bitfield.h:115:17: note: in expansion of macro '__BF_FIELD_CHECK' 115 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ | ^~~~~~~~~~~~~~~~ drivers/cache/starfive_starlink_cache.c:64:16: note: in expansion of macro 'FIELD_PREP' 64 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr), | ^~~~~~~~~~ drivers/cache/starfive_starlink_cache.c: In function 'starlink_cache_dma_cache_wback': include/linux/compiler_types.h:487:45: error: call to '__compiletime_assert_449' declared with attribute error: FIELD_PREP: mask is zero 487 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^ include/linux/compiler_types.h:468:25: note: in definition of macro '__compiletime_assert' 468 | prefix ## suffix(); \ | ^~~~~~ include/linux/compiler_types.h:487:9: note: in expansion of macro '_compiletime_assert' 487 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:67:17: note: in expansion of macro 'BUILD_BUG_ON_MSG' 67 | BUILD_BUG_ON_MSG((_mask) == 0, _pfx "mask is zero"); \ | ^~~~~~~~~~~~~~~~ include/linux/bitfield.h:115:17: note: in expansion of macro '__BF_FIELD_CHECK' 115 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ | ^~~~~~~~~~~~~~~~ drivers/cache/starfive_starlink_cache.c:49:16: note: in expansion of macro 'FIELD_PREP' 49 | writeq(FIELD_PREP(STARLINK_CACHE_ADDRESS_RANGE_MASK, paddr), | ^~~~~~~~~~ cc1: some warnings being treated as errors vim +179 include/linux/iopoll.h 57a29df341466b Kai-Heng Feng 2020-04-25 115 54c523127bcca9 Matt Wagantall 2014-12-15 116 /** 54c523127bcca9 Matt Wagantall 2014-12-15 117 * readx_poll_timeout - Periodically poll an address until a condition is met or a timeout occurs 54c523127bcca9 Matt Wagantall 2014-12-15 118 * @op: accessor function (takes @addr as its only argument) 54c523127bcca9 Matt Wagantall 2014-12-15 119 * @addr: Address to poll 54c523127bcca9 Matt Wagantall 2014-12-15 120 * @val: Variable to read the value into 54c523127bcca9 Matt Wagantall 2014-12-15 121 * @cond: Break condition (usually involving @val) 54c523127bcca9 Matt Wagantall 2014-12-15 122 * @sleep_us: Maximum time to sleep between reads in us (0 54c523127bcca9 Matt Wagantall 2014-12-15 123 * tight-loops). Should be less than ~20ms since usleep_range 458f69ef36656d Mauro Carvalho Chehab 2019-06-12 124 * is used (see Documentation/timers/timers-howto.rst). 54c523127bcca9 Matt Wagantall 2014-12-15 125 * @timeout_us: Timeout in us, 0 means never timeout 54c523127bcca9 Matt Wagantall 2014-12-15 126 * 54c523127bcca9 Matt Wagantall 2014-12-15 127 * Returns 0 on success and -ETIMEDOUT upon a timeout. In either 54c523127bcca9 Matt Wagantall 2014-12-15 128 * case, the last read value at @addr is stored in @val. Must not 54c523127bcca9 Matt Wagantall 2014-12-15 129 * be called from atomic context if sleep_us or timeout_us are used. 54c523127bcca9 Matt Wagantall 2014-12-15 130 * 54c523127bcca9 Matt Wagantall 2014-12-15 131 * When available, you'll probably want to use one of the specialized 54c523127bcca9 Matt Wagantall 2014-12-15 132 * macros defined below rather than this macro directly. 54c523127bcca9 Matt Wagantall 2014-12-15 133 */ 54c523127bcca9 Matt Wagantall 2014-12-15 134 #define readx_poll_timeout(op, addr, val, cond, sleep_us, timeout_us) \ eaa6b01024a74a Dejin Zheng 2020-03-23 135 read_poll_timeout(op, val, cond, sleep_us, timeout_us, false, addr) 54c523127bcca9 Matt Wagantall 2014-12-15 136 54c523127bcca9 Matt Wagantall 2014-12-15 137 /** 54c523127bcca9 Matt Wagantall 2014-12-15 138 * readx_poll_timeout_atomic - Periodically poll an address until a condition is met or a timeout occurs 54c523127bcca9 Matt Wagantall 2014-12-15 139 * @op: accessor function (takes @addr as its only argument) 54c523127bcca9 Matt Wagantall 2014-12-15 140 * @addr: Address to poll 54c523127bcca9 Matt Wagantall 2014-12-15 141 * @val: Variable to read the value into 54c523127bcca9 Matt Wagantall 2014-12-15 142 * @cond: Break condition (usually involving @val) 54c523127bcca9 Matt Wagantall 2014-12-15 143 * @delay_us: Time to udelay between reads in us (0 tight-loops). Should 54c523127bcca9 Matt Wagantall 2014-12-15 144 * be less than ~10us since udelay is used (see 458f69ef36656d Mauro Carvalho Chehab 2019-06-12 145 * Documentation/timers/timers-howto.rst). 54c523127bcca9 Matt Wagantall 2014-12-15 146 * @timeout_us: Timeout in us, 0 means never timeout 54c523127bcca9 Matt Wagantall 2014-12-15 147 * 54c523127bcca9 Matt Wagantall 2014-12-15 148 * Returns 0 on success and -ETIMEDOUT upon a timeout. In either 54c523127bcca9 Matt Wagantall 2014-12-15 149 * case, the last read value at @addr is stored in @val. 54c523127bcca9 Matt Wagantall 2014-12-15 150 * 54c523127bcca9 Matt Wagantall 2014-12-15 151 * When available, you'll probably want to use one of the specialized 54c523127bcca9 Matt Wagantall 2014-12-15 152 * macros defined below rather than this macro directly. 54c523127bcca9 Matt Wagantall 2014-12-15 153 */ 54c523127bcca9 Matt Wagantall 2014-12-15 154 #define readx_poll_timeout_atomic(op, addr, val, cond, delay_us, timeout_us) \ 57a29df341466b Kai-Heng Feng 2020-04-25 155 read_poll_timeout_atomic(op, val, cond, delay_us, timeout_us, false, addr) 54c523127bcca9 Matt Wagantall 2014-12-15 156 54c523127bcca9 Matt Wagantall 2014-12-15 157 #define readb_poll_timeout(addr, val, cond, delay_us, timeout_us) \ 54c523127bcca9 Matt Wagantall 2014-12-15 158 readx_poll_timeout(readb, addr, val, cond, delay_us, timeout_us) 54c523127bcca9 Matt Wagantall 2014-12-15 159 54c523127bcca9 Matt Wagantall 2014-12-15 160 #define readb_poll_timeout_atomic(addr, val, cond, delay_us, timeout_us) \ 54c523127bcca9 Matt Wagantall 2014-12-15 161 readx_poll_timeout_atomic(readb, addr, val, cond, delay_us, timeout_us) 54c523127bcca9 Matt Wagantall 2014-12-15 162 54c523127bcca9 Matt Wagantall 2014-12-15 163 #define readw_poll_timeout(addr, val, cond, delay_us, timeout_us) \ 54c523127bcca9 Matt Wagantall 2014-12-15 164 readx_poll_timeout(readw, addr, val, cond, delay_us, timeout_us) 54c523127bcca9 Matt Wagantall 2014-12-15 165 54c523127bcca9 Matt Wagantall 2014-12-15 166 #define readw_poll_timeout_atomic(addr, val, cond, delay_us, timeout_us) \ 54c523127bcca9 Matt Wagantall 2014-12-15 167 readx_poll_timeout_atomic(readw, addr, val, cond, delay_us, timeout_us) 54c523127bcca9 Matt Wagantall 2014-12-15 168 54c523127bcca9 Matt Wagantall 2014-12-15 169 #define readl_poll_timeout(addr, val, cond, delay_us, timeout_us) \ 54c523127bcca9 Matt Wagantall 2014-12-15 170 readx_poll_timeout(readl, addr, val, cond, delay_us, timeout_us) 54c523127bcca9 Matt Wagantall 2014-12-15 171 54c523127bcca9 Matt Wagantall 2014-12-15 172 #define readl_poll_timeout_atomic(addr, val, cond, delay_us, timeout_us) \ 54c523127bcca9 Matt Wagantall 2014-12-15 173 readx_poll_timeout_atomic(readl, addr, val, cond, delay_us, timeout_us) 54c523127bcca9 Matt Wagantall 2014-12-15 174 54c523127bcca9 Matt Wagantall 2014-12-15 175 #define readq_poll_timeout(addr, val, cond, delay_us, timeout_us) \ 54c523127bcca9 Matt Wagantall 2014-12-15 176 readx_poll_timeout(readq, addr, val, cond, delay_us, timeout_us) 54c523127bcca9 Matt Wagantall 2014-12-15 177 54c523127bcca9 Matt Wagantall 2014-12-15 178 #define readq_poll_timeout_atomic(addr, val, cond, delay_us, timeout_us) \ 54c523127bcca9 Matt Wagantall 2014-12-15 @179 readx_poll_timeout_atomic(readq, addr, val, cond, delay_us, timeout_us) 54c523127bcca9 Matt Wagantall 2014-12-15 180 :::::: The code at line 179 was first introduced by commit :::::: 54c523127bcca986c6f9b04c7b56a949ea011899 iopoll: Introduce memory-mapped IO polling macros :::::: TO: Matt Wagantall <mattw@xxxxxxxxxxxxxx> :::::: CC: Will Deacon <will.deacon@xxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
