[PATCH v3] mmc: mtk-sd: reduce CIT for better performance
kernel test robot
lkp at intel.com
Mon Jun 5 02:24:20 PDT 2023
Hi Wenbin,
kernel test robot noticed the following build errors:
[auto build test ERROR on linus/master]
[also build test ERROR on ulf-hansson-mmc-mirror/next v6.4-rc5 next-20230605]
[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#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Wenbin-Mei/mmc-mtk-sd-reduce-CIT-for-better-performance/20230605-140238
base: linus/master
patch link: https://lore.kernel.org/r/20230605060107.22044-1-wenbin.mei%40mediatek.com
patch subject: [PATCH v3] mmc: mtk-sd: reduce CIT for better performance
config: openrisc-randconfig-r035-20230605 (https://download.01.org/0day-ci/archive/20230605/202306051755.pR3fhYlB-lkp@intel.com/config)
compiler: or1k-linux-gcc (GCC) 12.3.0
reproduce (this is a W=1 build):
mkdir -p ~/bin
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/225e46f420d48f7ad73253636a0553bd5f986435
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Wenbin-Mei/mmc-mtk-sd-reduce-CIT-for-better-performance/20230605-140238
git checkout 225e46f420d48f7ad73253636a0553bd5f986435
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=openrisc olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=openrisc SHELL=/bin/bash drivers/mmc/host/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306051755.pR3fhYlB-lkp@intel.com/
All error/warnings (new ones prefixed by >>):
In file included from ./arch/openrisc/include/generated/asm/div64.h:1,
from include/linux/math.h:6,
from include/linux/math64.h:6,
from include/linux/time.h:6,
from include/linux/stat.h:19,
from include/linux/module.h:13,
from drivers/mmc/host/mtk-sd.c:7:
drivers/mmc/host/mtk-sd.c: In function 'msdc_cqe_cit_cal':
>> include/asm-generic/div64.h:222:35: warning: comparison of distinct pointer types lacks a cast
222 | (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
| ^~
drivers/mmc/host/mtk-sd.c:2470:25: note: in expansion of macro 'do_div'
2470 | do_div(hclk_freq, 1000);
| ^~~~~~
In file included from include/linux/build_bug.h:5,
from include/linux/container_of.h:5,
from include/linux/list.h:5,
from include/linux/module.h:12:
>> include/asm-generic/div64.h:234:32: warning: right shift count >= width of type [-Wshift-count-overflow]
234 | } else if (likely(((n) >> 32) == 0)) { \
| ^~
include/linux/compiler.h:76:45: note: in definition of macro 'likely'
76 | # define likely(x) __builtin_expect(!!(x), 1)
| ^
drivers/mmc/host/mtk-sd.c:2470:25: note: in expansion of macro 'do_div'
2470 | do_div(hclk_freq, 1000);
| ^~~~~~
>> include/asm-generic/div64.h:238:36: error: passing argument 1 of '__div64_32' from incompatible pointer type [-Werror=incompatible-pointer-types]
238 | __rem = __div64_32(&(n), __base); \
| ^~~~
| |
| u32 * {aka unsigned int *}
drivers/mmc/host/mtk-sd.c:2470:25: note: in expansion of macro 'do_div'
2470 | do_div(hclk_freq, 1000);
| ^~~~~~
include/asm-generic/div64.h:213:38: note: expected 'uint64_t *' {aka 'long long unsigned int *'} but argument is of type 'u32 *' {aka 'unsigned int *'}
213 | extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
| ~~~~~~~~~~^~~~~~~~
>> include/asm-generic/div64.h:222:35: warning: comparison of distinct pointer types lacks a cast
222 | (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
| ^~
drivers/mmc/host/mtk-sd.c:2473:25: note: in expansion of macro 'do_div'
2473 | do_div(hclk_freq, 100);
| ^~~~~~
>> include/asm-generic/div64.h:234:32: warning: right shift count >= width of type [-Wshift-count-overflow]
234 | } else if (likely(((n) >> 32) == 0)) { \
| ^~
include/linux/compiler.h:76:45: note: in definition of macro 'likely'
76 | # define likely(x) __builtin_expect(!!(x), 1)
| ^
drivers/mmc/host/mtk-sd.c:2473:25: note: in expansion of macro 'do_div'
2473 | do_div(hclk_freq, 100);
| ^~~~~~
>> include/asm-generic/div64.h:238:36: error: passing argument 1 of '__div64_32' from incompatible pointer type [-Werror=incompatible-pointer-types]
238 | __rem = __div64_32(&(n), __base); \
| ^~~~
| |
| u32 * {aka unsigned int *}
drivers/mmc/host/mtk-sd.c:2473:25: note: in expansion of macro 'do_div'
2473 | do_div(hclk_freq, 100);
| ^~~~~~
include/asm-generic/div64.h:213:38: note: expected 'uint64_t *' {aka 'long long unsigned int *'} but argument is of type 'u32 *' {aka 'unsigned int *'}
213 | extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
| ~~~~~~~~~~^~~~~~~~
>> include/asm-generic/div64.h:222:35: warning: comparison of distinct pointer types lacks a cast
222 | (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
| ^~
drivers/mmc/host/mtk-sd.c:2476:25: note: in expansion of macro 'do_div'
2476 | do_div(hclk_freq, 10);
| ^~~~~~
>> include/asm-generic/div64.h:234:32: warning: right shift count >= width of type [-Wshift-count-overflow]
234 | } else if (likely(((n) >> 32) == 0)) { \
| ^~
include/linux/compiler.h:76:45: note: in definition of macro 'likely'
76 | # define likely(x) __builtin_expect(!!(x), 1)
| ^
drivers/mmc/host/mtk-sd.c:2476:25: note: in expansion of macro 'do_div'
2476 | do_div(hclk_freq, 10);
| ^~~~~~
>> include/asm-generic/div64.h:238:36: error: passing argument 1 of '__div64_32' from incompatible pointer type [-Werror=incompatible-pointer-types]
238 | __rem = __div64_32(&(n), __base); \
| ^~~~
| |
| u32 * {aka unsigned int *}
drivers/mmc/host/mtk-sd.c:2476:25: note: in expansion of macro 'do_div'
2476 | do_div(hclk_freq, 10);
| ^~~~~~
include/asm-generic/div64.h:213:38: note: expected 'uint64_t *' {aka 'long long unsigned int *'} but argument is of type 'u32 *' {aka 'unsigned int *'}
213 | extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
| ~~~~~~~~~~^~~~~~~~
>> drivers/mmc/host/mtk-sd.c:2489:11: error: expected '}' before 'else'
2489 | } else {
| ^~~~
cc1: some warnings being treated as errors
vim +2489 drivers/mmc/host/mtk-sd.c
2453
2454 static void msdc_cqe_cit_cal(struct msdc_host *host, u64 timer_ns)
2455 {
2456 struct mmc_host *mmc = mmc_from_priv(host);
2457 struct cqhci_host *cq_host = mmc->cqe_private;
2458 u8 itcfmul;
2459 u32 hclk_freq;
2460 u64 value;
2461
2462 /* Since MSDC CQE uses msdc_hclk as ITCFVAL, so driver should use hclk
2463 * frequency to get the actual time for CIT.
2464 */
2465 if (host->h_clk) {
2466 hclk_freq = clk_get_rate(host->h_clk);
2467 itcfmul = CQHCI_CAP_ITCFMUL(cqhci_readl(cq_host, CQHCI_CAP));
2468 switch (itcfmul) {
2469 case 0x0:
2470 do_div(hclk_freq, 1000);
2471 break;
2472 case 0x1:
2473 do_div(hclk_freq, 100);
2474 break;
2475 case 0x2:
2476 do_div(hclk_freq, 10);
2477 break;
2478 case 0x3:
2479 break;
2480 case 0x4:
2481 hclk_freq = hclk_freq * 10;
2482 break;
2483 default:
2484 host->cq_ssc1_time = 0x40;
2485 return;
2486 value = hclk_freq * timer_ns;
2487 do_div(value, 1000000000ULL);
2488 host->cq_ssc1_time = value;
> 2489 } else {
2490 host->cq_ssc1_time = 0x40;
2491 }
2492 }
2493
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