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SubjectRe: [PATCH v5 2/4] perf/marvell: CN10k DDR performance monitor support
Hi Bharat,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on robh/for-next]
[also build test WARNING on linus/master v5.15-rc6 next-20211022]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/Bharat-Bhushan/cn10k-DDR-Performance-monitor-support/20211018-122220
base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: hexagon-randconfig-r045-20211025 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project a461fa64bb37cffd73f683c74f6b0780379fc2ca)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/c165c120469cac5c73b7a7e9d027c284eb09c6d1
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Bharat-Bhushan/cn10k-DDR-Performance-monitor-support/20211018-122220
git checkout c165c120469cac5c73b7a7e9d027c284eb09c6d1
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=hexagon

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

drivers/perf/marvell_cn10k_ddr_pmu.c:352:9: error: implicit declaration of function 'readq_relaxed' [-Werror,-Wimplicit-function-declaration]
val = readq_relaxed(pmu->base + reg);
^
drivers/perf/marvell_cn10k_ddr_pmu.c:359:3: error: implicit declaration of function 'writeq_relaxed' [-Werror,-Wimplicit-function-declaration]
writeq_relaxed(val, pmu->base + reg);
^
drivers/perf/marvell_cn10k_ddr_pmu.c:359:3: note: did you mean 'readq_relaxed'?
drivers/perf/marvell_cn10k_ddr_pmu.c:352:9: note: 'readq_relaxed' declared here
val = readq_relaxed(pmu->base + reg);
^
drivers/perf/marvell_cn10k_ddr_pmu.c:361:9: error: implicit declaration of function 'readq_relaxed' [-Werror,-Wimplicit-function-declaration]
val = readq_relaxed(pmu->base + DDRC_PERF_CNT_FREERUN_EN);
^
drivers/perf/marvell_cn10k_ddr_pmu.c:373:3: error: implicit declaration of function 'writeq_relaxed' [-Werror,-Wimplicit-function-declaration]
writeq_relaxed(val, pmu->base + DDRC_PERF_CNT_FREERUN_EN);
^
drivers/perf/marvell_cn10k_ddr_pmu.c:382:10: error: implicit declaration of function 'readq_relaxed' [-Werror,-Wimplicit-function-declaration]
return readq_relaxed(pmu->base + DDRC_PERF_CNT_VALUE_RD_OP);
^
drivers/perf/marvell_cn10k_ddr_pmu.c:443:3: error: implicit declaration of function 'writeq_relaxed' [-Werror,-Wimplicit-function-declaration]
writeq_relaxed(val, pmu->base + reg_offset);
^
drivers/perf/marvell_cn10k_ddr_pmu.c:451:3: error: implicit declaration of function 'writeq_relaxed' [-Werror,-Wimplicit-function-declaration]
writeq_relaxed(val, pmu->base + DDRC_PERF_CNT_FREERUN_CTRL);
^
drivers/perf/marvell_cn10k_ddr_pmu.c:493:2: error: implicit declaration of function 'writeq_relaxed' [-Werror,-Wimplicit-function-declaration]
writeq_relaxed(START_OP_CTRL_VAL_START, ddr_pmu->base +
^
drivers/perf/marvell_cn10k_ddr_pmu.c:501:2: error: implicit declaration of function 'writeq_relaxed' [-Werror,-Wimplicit-function-declaration]
writeq_relaxed(END_OP_CTRL_VAL_END, ddr_pmu->base +
^
drivers/perf/marvell_cn10k_ddr_pmu.c:527:2: error: implicit declaration of function 'writeq_relaxed' [-Werror,-Wimplicit-function-declaration]
writeq_relaxed(OP_MODE_CTRL_VAL_MANNUAL, ddr_pmu->base +
^
>> drivers/perf/marvell_cn10k_ddr_pmu.c:549:10: warning: format specifies type 'unsigned long long' but the argument has type 'resource_size_t' (aka 'unsigned int') [-Wformat]
res->start);
^~~~~~~~~~
drivers/perf/marvell_cn10k_ddr_pmu.c:557:50: warning: format specifies type 'unsigned long long' but the argument has type 'resource_size_t' (aka 'unsigned int') [-Wformat]
pr_info("CN10K DDR PMU Driver for ddrc@%llx\n", res->start);
~~~~ ^~~~~~~~~~
%x
include/linux/printk.h:519:34: note: expanded from macro 'pr_info'
printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/printk.h:446:60: note: expanded from macro 'printk'
#define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/printk.h:418:19: note: expanded from macro 'printk_index_wrap'
_p_func(_fmt, ##__VA_ARGS__); \
~~~~ ^~~~~~~~~~~
2 warnings and 10 errors generated.


vim +549 drivers/perf/marvell_cn10k_ddr_pmu.c

504
505 static int cn10k_ddr_perf_probe(struct platform_device *pdev)
506 {
507 struct cn10k_ddr_pmu *ddr_pmu;
508 struct resource *res;
509 void __iomem *base;
510 char *name;
511 int ret;
512
513 ddr_pmu = devm_kzalloc(&pdev->dev, sizeof(*ddr_pmu), GFP_KERNEL);
514 if (!ddr_pmu)
515 return -ENOMEM;
516
517 ddr_pmu->dev = &pdev->dev;
518 platform_set_drvdata(pdev, ddr_pmu);
519
520 base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
521 if (IS_ERR(base))
522 return PTR_ERR(base);
523
524 ddr_pmu->base = base;
525
526 /* Setup the PMU counter to work in manual mode */
527 writeq_relaxed(OP_MODE_CTRL_VAL_MANNUAL, ddr_pmu->base +
528 DDRC_PERF_CNT_OP_MODE_CTRL);
529
530 ddr_pmu->pmu = (struct pmu) {
531 .module = THIS_MODULE,
532 .capabilities = PERF_PMU_CAP_NO_EXCLUDE,
533 .task_ctx_nr = perf_invalid_context,
534 .attr_groups = cn10k_attr_groups,
535 .event_init = cn10k_ddr_perf_event_init,
536 .add = cn10k_ddr_perf_event_add,
537 .del = cn10k_ddr_perf_event_del,
538 .start = cn10k_ddr_perf_event_start,
539 .stop = cn10k_ddr_perf_event_stop,
540 .read = cn10k_ddr_perf_event_update,
541 .pmu_enable = cn10k_ddr_perf_pmu_enable,
542 .pmu_disable = cn10k_ddr_perf_pmu_disable,
543 };
544
545 /* Choose this cpu to collect perf data */
546 ddr_pmu->cpu = raw_smp_processor_id();
547
548 name = devm_kasprintf(ddr_pmu->dev, GFP_KERNEL, "mrvl_ddr_pmu_%llx",
> 549 res->start);
550 if (!name)
551 return -ENOMEM;
552
553 ret = perf_pmu_register(&ddr_pmu->pmu, name, -1);
554 if (ret)
555 return ret;
556
557 pr_info("CN10K DDR PMU Driver for ddrc@%llx\n", res->start);
558 return 0;
559 }
560

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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