tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 11afac187274a6177a7ac82997f8691c0f469e41 commit: c2b24812f7bc5fbd6f2f92af070856fbe4c37b40 [11348/11963] perf: starfive: Add StarLink PMU support config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20240305/202403051732.LuCJfZAh-lkp@xxxxxxxxx/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 325f51237252e6dab8e4e1ea1fa7acbb4faee1cd) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240305/202403051732.LuCJfZAh-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/202403051732.LuCJfZAh-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from drivers/perf/starfive_starlink_pmu.c:16: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from drivers/perf/starfive_starlink_pmu.c:16: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from drivers/perf/starfive_starlink_pmu.c:16: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ In file included from drivers/perf/starfive_starlink_pmu.c:21: In file included from include/linux/perf_event.h:18: In file included from include/uapi/linux/bpf_perf_event.h:11: In file included from ./arch/hexagon/include/generated/uapi/asm/bpf_perf_event.h:1: In file included from include/uapi/asm-generic/bpf_perf_event.h:4: In file included from include/linux/ptrace.h:10: In file included from include/linux/pid_namespace.h:7: In file included from include/linux/mm.h:2188: include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ >> drivers/perf/starfive_starlink_pmu.c:169:3: error: call to undeclared function 'writeq'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 169 | writeq(val, starlink_pmu->pmu_base + STARLINK_PMU_CYCLE_COUNTER); | ^ >> drivers/perf/starfive_starlink_pmu.c:191:8: error: call to undeclared function 'readq'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 191 | val = readq(starlink_pmu->pmu_base + STARLINK_PMU_INTERRUPT_ENABLE); | ^ drivers/perf/starfive_starlink_pmu.c:200:3: error: call to undeclared function 'writeq'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 200 | writeq(event->hw.config, starlink_pmu->pmu_base + | ^ drivers/perf/starfive_starlink_pmu.c:206:2: error: call to undeclared function 'writeq'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 206 | writeq(val, starlink_pmu->pmu_base + STARLINK_PMU_INTERRUPT_ENABLE); | ^ drivers/perf/starfive_starlink_pmu.c:219:8: error: call to undeclared function 'readq'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 219 | val = readq(starlink_pmu->pmu_base + STARLINK_PMU_CONTROL); | ^ drivers/perf/starfive_starlink_pmu.c:221:2: error: call to undeclared function 'writeq'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 221 | writeq(val, starlink_pmu->pmu_base + STARLINK_PMU_CONTROL); | ^ drivers/perf/starfive_starlink_pmu.c:244:20: error: call to undeclared function 'readq'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 244 | new_raw_count = readq(starlink_pmu->pmu_base + | ^ drivers/perf/starfive_starlink_pmu.c:412:21: error: call to undeclared function 'readq'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 412 | overflow_status = readq(starlink_pmu->pmu_base + | ^ drivers/perf/starfive_starlink_pmu.c:417:3: error: call to undeclared function 'writeq'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 417 | writeq(BIT_ULL(idx), starlink_pmu->pmu_base + | ^ 7 warnings and 9 errors generated. vim +/writeq +169 drivers/perf/starfive_starlink_pmu.c 154 155 static void starlink_pmu_set_event_period(struct perf_event *event) 156 { 157 struct starlink_pmu *starlink_pmu = to_starlink_pmu(event->pmu); 158 struct hw_perf_event *hwc = &event->hw; 159 int idx = event->hw.idx; 160 161 /* 162 * Program counter to half of it's max count to handle 163 * cases of extreme interrupt latency. 164 */ 165 u64 val = STARLINK_PMU_COUNTER_MASK >> 1; 166 167 local64_set(&hwc->prev_count, val); 168 if (hwc->config == STARLINK_CYCLES) > 169 writeq(val, starlink_pmu->pmu_base + STARLINK_PMU_CYCLE_COUNTER); 170 else 171 writeq(val, starlink_pmu->pmu_base + STARLINK_PMU_EVENT_COUNTER + 172 idx * sizeof(u64)); 173 } 174 175 static void starlink_pmu_counter_start(struct perf_event *event, 176 struct starlink_pmu *starlink_pmu) 177 { 178 struct hw_perf_event *hwc = &event->hw; 179 int idx = event->hw.idx; 180 u64 val; 181 182 /* 183 * Enable counter overflow interrupt[63:0], 184 * which is mapped as follow: 185 * 186 * event counter 0 - Bit [0] 187 * event counter 1 - Bit [1] 188 * ... 189 * cycle counter - Bit [63] 190 */ > 191 val = readq(starlink_pmu->pmu_base + STARLINK_PMU_INTERRUPT_ENABLE); 192 193 if (hwc->config == STARLINK_CYCLES) { 194 /* 195 * Cycle count has its dedicated register, and it starts 196 * counting as soon as STARLINK_PMU_GLOBAL_ENABLE is set. 197 */ 198 val |= STARLINK_PMU_CYCLE_OVERFLOW_MASK; 199 } else { 200 writeq(event->hw.config, starlink_pmu->pmu_base + 201 STARLINK_PMU_EVENT_SELECT + idx * sizeof(u64)); 202 203 val |= BIT_ULL(idx); 204 } 205 206 writeq(val, starlink_pmu->pmu_base + STARLINK_PMU_INTERRUPT_ENABLE); 207 208 writeq(STARLINK_PMU_GLOBAL_ENABLE, starlink_pmu->pmu_base + 209 STARLINK_PMU_CONTROL); 210 } 211 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
