diff mbox series

[5/7] clocksource/drivers/timer-microchip-pit64b: add delay timer

Message ID 20220228111923.1400049-6-claudiu.beznea@microchip.com (mailing list archive)
State New, archived
Headers show
Series clocksource/drivers/timer-microchip-pit64b: fixes and improvements | expand

Commit Message

Claudiu Beznea Feb. 28, 2022, 11:19 a.m. UTC
Add delay timer.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
 drivers/clocksource/timer-microchip-pit64b.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

Comments

kernel test robot Feb. 28, 2022, 5:35 p.m. UTC | #1
Hi Claudiu,

I love your patch! Yet something to improve:

[auto build test ERROR on tip/timers/core]
[also build test ERROR on soc/for-next linus/master v5.17-rc6 next-20220225]
[cannot apply to daniel-lezcano/clockevents/next]
[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/Claudiu-Beznea/clocksource-drivers-timer-microchip-pit64b-fixes-and-improvements/20220228-191933
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 35e13e9da9afbce13c1d36465504ece4e65f24fe
config: openrisc-randconfig-r035-20220228 (https://download.01.org/0day-ci/archive/20220228/202202282139.f38uxhKT-lkp@intel.com/config)
compiler: or1k-linux-gcc (GCC) 11.2.0
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/6050ca5a0af604ed2c397dcb907a9b057635a64e
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Claudiu-Beznea/clocksource-drivers-timer-microchip-pit64b-fixes-and-improvements/20220228-191933
        git checkout 6050ca5a0af604ed2c397dcb907a9b057635a64e
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=openrisc SHELL=/bin/bash drivers/

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

All errors (new ones prefixed by >>):

   drivers/clocksource/timer-microchip-pit64b.c: In function 'mchp_pit64b_init_clksrc':
>> drivers/clocksource/timer-microchip-pit64b.c:382:23: error: invalid use of undefined type 'struct delay_timer'
     382 |         mchp_pit64b_dt.read_current_timer = mchp_pit64b_dt_read;
         |                       ^
   drivers/clocksource/timer-microchip-pit64b.c:383:23: error: invalid use of undefined type 'struct delay_timer'
     383 |         mchp_pit64b_dt.freq = clk_rate;
         |                       ^
>> drivers/clocksource/timer-microchip-pit64b.c:384:9: error: implicit declaration of function 'register_current_timer_delay' [-Werror=implicit-function-declaration]
     384 |         register_current_timer_delay(&mchp_pit64b_dt);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/clocksource/timer-microchip-pit64b.c: At top level:
>> drivers/clocksource/timer-microchip-pit64b.c:97:27: error: storage size of 'mchp_pit64b_dt' isn't known
      97 | static struct delay_timer mchp_pit64b_dt;
         |                           ^~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +382 drivers/clocksource/timer-microchip-pit64b.c

   341	
   342	static int __init mchp_pit64b_init_clksrc(struct mchp_pit64b_timer *timer,
   343						  u32 clk_rate)
   344	{
   345		struct mchp_pit64b_clksrc *cs;
   346		int ret;
   347	
   348		cs = kzalloc(sizeof(*cs), GFP_KERNEL);
   349		if (!cs)
   350			return -ENOMEM;
   351	
   352		mchp_pit64b_reset(timer, ULLONG_MAX, MCHP_PIT64B_MR_CONT, 0);
   353	
   354		mchp_pit64b_cs_base = timer->base;
   355	
   356		cs->timer.base = timer->base;
   357		cs->timer.pclk = timer->pclk;
   358		cs->timer.gclk = timer->gclk;
   359		cs->timer.mode = timer->mode;
   360		cs->clksrc.name = MCHP_PIT64B_NAME;
   361		cs->clksrc.mask = CLOCKSOURCE_MASK(64);
   362		cs->clksrc.flags = CLOCK_SOURCE_IS_CONTINUOUS;
   363		cs->clksrc.rating = 210;
   364		cs->clksrc.read = mchp_pit64b_clksrc_read;
   365		cs->clksrc.suspend = mchp_pit64b_clksrc_suspend;
   366		cs->clksrc.resume = mchp_pit64b_clksrc_resume;
   367	
   368		ret = clocksource_register_hz(&cs->clksrc, clk_rate);
   369		if (ret) {
   370			pr_debug("clksrc: Failed to register PIT64B clocksource!\n");
   371	
   372			/* Stop timer. */
   373			writel_relaxed(MCHP_PIT64B_CR_SWRST,
   374				       timer->base + MCHP_PIT64B_CR);
   375			kfree(cs);
   376	
   377			return ret;
   378		}
   379	
   380		sched_clock_register(mchp_pit64b_sched_read_clk, 64, clk_rate);
   381	
 > 382		mchp_pit64b_dt.read_current_timer = mchp_pit64b_dt_read;
   383		mchp_pit64b_dt.freq = clk_rate;
 > 384		register_current_timer_delay(&mchp_pit64b_dt);
   385	
   386		return 0;
   387	}
   388	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
kernel test robot Feb. 28, 2022, 5:35 p.m. UTC | #2
Hi Claudiu,

I love your patch! Perhaps something to improve:

[auto build test WARNING on tip/timers/core]
[also build test WARNING on soc/for-next linus/master v5.17-rc6 next-20220225]
[cannot apply to daniel-lezcano/clockevents/next]
[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/Claudiu-Beznea/clocksource-drivers-timer-microchip-pit64b-fixes-and-improvements/20220228-191933
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 35e13e9da9afbce13c1d36465504ece4e65f24fe
config: s390-randconfig-r036-20220228 (https://download.01.org/0day-ci/archive/20220228/202202282242.zM0FjCHj-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e)
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
        # install s390 cross compiling tool for clang build
        # apt-get install binutils-s390x-linux-gnu
        # https://github.com/0day-ci/linux/commit/6050ca5a0af604ed2c397dcb907a9b057635a64e
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Claudiu-Beznea/clocksource-drivers-timer-microchip-pit64b-fixes-and-improvements/20220228-191933
        git checkout 6050ca5a0af604ed2c397dcb907a9b057635a64e
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/clocksource/

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 >>):

   In file included from drivers/clocksource/timer-microchip-pit64b.c:11:
   In file included from include/linux/clockchips.h:14:
   In file included from include/linux/clocksource.h:22:
   In file included from arch/s390/include/asm/io.h:75:
   include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __raw_readb(PCI_IOBASE + addr);
                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/big_endian.h:36:59: note: expanded from macro '__le16_to_cpu'
   #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
                                                             ^
   include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
   #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
                                                        ^
   In file included from drivers/clocksource/timer-microchip-pit64b.c:11:
   In file included from include/linux/clockchips.h:14:
   In file included from include/linux/clocksource.h:22:
   In file included from arch/s390/include/asm/io.h:75:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
                                                             ^
   include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
   #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
                                                        ^
   In file included from drivers/clocksource/timer-microchip-pit64b.c:11:
   In file included from include/linux/clockchips.h:14:
   In file included from include/linux/clocksource.h:22:
   In file included from arch/s390/include/asm/io.h:75:
   include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writeb(value, PCI_IOBASE + addr);
                               ~~~~~~~~~~ ^
   include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           readsb(PCI_IOBASE + addr, buffer, count);
                  ~~~~~~~~~~ ^
   include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           readsw(PCI_IOBASE + addr, buffer, count);
                  ~~~~~~~~~~ ^
   include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           readsl(PCI_IOBASE + addr, buffer, count);
                  ~~~~~~~~~~ ^
   include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           writesb(PCI_IOBASE + addr, buffer, count);
                   ~~~~~~~~~~ ^
   include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           writesw(PCI_IOBASE + addr, buffer, count);
                   ~~~~~~~~~~ ^
   include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           writesl(PCI_IOBASE + addr, buffer, count);
                   ~~~~~~~~~~ ^
>> drivers/clocksource/timer-microchip-pit64b.c:97:27: warning: tentative definition of variable with internal linkage has incomplete non-array type 'struct delay_timer' [-Wtentative-definition-incomplete-type]
   static struct delay_timer mchp_pit64b_dt;
                             ^
   drivers/clocksource/timer-microchip-pit64b.c:97:15: note: forward declaration of 'struct delay_timer'
   static struct delay_timer mchp_pit64b_dt;
                 ^
   drivers/clocksource/timer-microchip-pit64b.c:382:16: error: incomplete definition of type 'struct delay_timer'
           mchp_pit64b_dt.read_current_timer = mchp_pit64b_dt_read;
           ~~~~~~~~~~~~~~^
   drivers/clocksource/timer-microchip-pit64b.c:97:15: note: forward declaration of 'struct delay_timer'
   static struct delay_timer mchp_pit64b_dt;
                 ^
   drivers/clocksource/timer-microchip-pit64b.c:383:16: error: incomplete definition of type 'struct delay_timer'
           mchp_pit64b_dt.freq = clk_rate;
           ~~~~~~~~~~~~~~^
   drivers/clocksource/timer-microchip-pit64b.c:97:15: note: forward declaration of 'struct delay_timer'
   static struct delay_timer mchp_pit64b_dt;
                 ^
   drivers/clocksource/timer-microchip-pit64b.c:384:2: error: implicit declaration of function 'register_current_timer_delay' [-Werror,-Wimplicit-function-declaration]
           register_current_timer_delay(&mchp_pit64b_dt);
           ^
   drivers/clocksource/timer-microchip-pit64b.c:97:27: error: tentative definition has type 'struct delay_timer' that is never completed
   static struct delay_timer mchp_pit64b_dt;
                             ^
   drivers/clocksource/timer-microchip-pit64b.c:97:15: note: forward declaration of 'struct delay_timer'
   static struct delay_timer mchp_pit64b_dt;
                 ^
   13 warnings and 4 errors generated.


vim +97 drivers/clocksource/timer-microchip-pit64b.c

    87	
    88	#define clksrc_to_mchp_pit64b_timer(x) \
    89		((struct mchp_pit64b_timer *)container_of(x,\
    90			struct mchp_pit64b_clksrc, clksrc))
    91	
    92	/* Base address for clocksource timer. */
    93	static void __iomem *mchp_pit64b_cs_base;
    94	/* Default cycles for clockevent timer. */
    95	static u64 mchp_pit64b_ce_cycles;
    96	/* Delay timer. */
  > 97	static struct delay_timer mchp_pit64b_dt;
    98	

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

Patch

diff --git a/drivers/clocksource/timer-microchip-pit64b.c b/drivers/clocksource/timer-microchip-pit64b.c
index abce83d2f00b..f1b211ee6312 100644
--- a/drivers/clocksource/timer-microchip-pit64b.c
+++ b/drivers/clocksource/timer-microchip-pit64b.c
@@ -9,6 +9,7 @@ 
 
 #include <linux/clk.h>
 #include <linux/clockchips.h>
+#include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
@@ -92,6 +93,8 @@  struct mchp_pit64b_clksrc {
 static void __iomem *mchp_pit64b_cs_base;
 /* Default cycles for clockevent timer. */
 static u64 mchp_pit64b_ce_cycles;
+/* Delay timer. */
+static struct delay_timer mchp_pit64b_dt;
 
 static inline u64 mchp_pit64b_cnt_read(void __iomem *base)
 {
@@ -169,6 +172,11 @@  static u64 notrace mchp_pit64b_sched_read_clk(void)
 	return mchp_pit64b_cnt_read(mchp_pit64b_cs_base);
 }
 
+static unsigned long notrace mchp_pit64b_dt_read(void)
+{
+	return mchp_pit64b_cnt_read(mchp_pit64b_cs_base);
+}
+
 static int mchp_pit64b_clkevt_shutdown(struct clock_event_device *cedev)
 {
 	struct mchp_pit64b_timer *timer = clkevt_to_mchp_pit64b_timer(cedev);
@@ -371,6 +379,10 @@  static int __init mchp_pit64b_init_clksrc(struct mchp_pit64b_timer *timer,
 
 	sched_clock_register(mchp_pit64b_sched_read_clk, 64, clk_rate);
 
+	mchp_pit64b_dt.read_current_timer = mchp_pit64b_dt_read;
+	mchp_pit64b_dt.freq = clk_rate;
+	register_current_timer_delay(&mchp_pit64b_dt);
+
 	return 0;
 }