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SubjectRe: [PATCH v10 10/10] thermal: intel: intel_soc_dts_iosf: Utilize for_each_set_clump8 macro
On Thu, Mar 14, 2019 at 09:32:57PM +0900, William Breathitt Gray wrote:
> Utilize for_each_set_clump8 macro, and the bitmap_set_value8 and
> bitmap_get_value8 functions, where appropriate. In addition, remove the
> now unnecessary temp_mask and temp_shift members of the
> intel_soc_dts_sensor_entry structure.

One comment below, otherwise
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Thanks!

>
> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
> ---
> drivers/thermal/intel/intel_soc_dts_iosf.c | 29 +++++++++++++---------
> drivers/thermal/intel/intel_soc_dts_iosf.h | 2 --
> 2 files changed, 17 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/thermal/intel/intel_soc_dts_iosf.c b/drivers/thermal/intel/intel_soc_dts_iosf.c
> index e0813dfaa278..b66f554670f7 100644
> --- a/drivers/thermal/intel/intel_soc_dts_iosf.c
> +++ b/drivers/thermal/intel/intel_soc_dts_iosf.c
> @@ -15,6 +15,7 @@
>
> #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
>
> +#include <linux/bitops.h>
> #include <linux/module.h>
> #include <linux/slab.h>
> #include <linux/interrupt.h>
> @@ -111,6 +112,7 @@ static int update_trip_temp(struct intel_soc_dts_sensor_entry *dts,
> {
> int status;
> u32 temp_out;
> + unsigned long update_ptps;
> u32 out;
> u32 store_ptps;
> u32 store_ptmc;
> @@ -129,8 +131,9 @@ static int update_trip_temp(struct intel_soc_dts_sensor_entry *dts,
> if (status)
> return status;
>
> - out = (store_ptps & ~(0xFF << (thres_index * 8)));
> - out |= (temp_out & 0xFF) << (thres_index * 8);
> + update_ptps = store_ptps;
> + bitmap_set_value8(&update_ptps, 32, temp_out & 0xFF, thres_index * 8);
> + out = update_ptps;
> status = iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE,
> SOC_DTS_OFFSET_PTPS, out);
> if (status)
> @@ -232,6 +235,7 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
> u32 out;
> struct intel_soc_dts_sensor_entry *dts;
> struct intel_soc_dts_sensors *sensors;
> + unsigned long temp_raw;
>
> dts = tzd->devdata;
> sensors = dts->sensors;
> @@ -240,7 +244,8 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
> if (status)
> return status;
>
> - out = (out & dts->temp_mask) >> dts->temp_shift;
> + temp_raw = out;
> + out = bitmap_get_value8(&temp_raw, 32, dts->id * 8);
> out -= SOC_DTS_TJMAX_ENCODING;
> *temp = sensors->tj_max - out * 1000;
>
> @@ -290,10 +295,13 @@ static int add_dts_thermal_zone(int id, struct intel_soc_dts_sensor_entry *dts,
> {
> char name[10];
> int trip_count = 0;
> + int writable_trip_count = 0;
> int trip_mask = 0;
> u32 store_ptps;
> int ret;
> - int i;
> + unsigned int i;
> + unsigned long trip;
> + unsigned long ptps;
>
> /* Store status to restor on exit */
> ret = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ,
> @@ -302,11 +310,10 @@ static int add_dts_thermal_zone(int id, struct intel_soc_dts_sensor_entry *dts,
> goto err_ret;
>
> dts->id = id;
> - dts->temp_mask = 0x00FF << (id * 8);
> - dts->temp_shift = id * 8;
> if (notification_support) {
> trip_count = min(SOC_MAX_DTS_TRIPS, trip_cnt);
> - trip_mask = BIT(trip_count - read_only_trip_cnt) - 1;
> + writable_trip_count = trip_count - read_only_trip_cnt;
> + trip_mask = GENMASK(writable_trip_count - 1, 0);
> }
>
> /* Check if the writable trip we provide is not used by BIOS */
> @@ -315,11 +322,9 @@ static int add_dts_thermal_zone(int id, struct intel_soc_dts_sensor_entry *dts,
> if (ret)
> trip_mask = 0;
> else {
> - for (i = 0; i < trip_count; ++i) {
> - if (trip_mask & BIT(i))
> - if (store_ptps & (0xff << (i * 8)))
> - trip_mask &= ~BIT(i);
> - }
> + ptps = store_ptps;
> + for_each_set_clump8(i, trip, ptps, writable_trip_count * 8)

It seems you didn't notice gcc warnings, the ptps should be pointer, i.e. &ptps.
After changing here manually seems working.

> + trip_mask &= ~BIT(i / 8);
> }
> dts->trip_mask = trip_mask;
> dts->trip_count = trip_count;
> diff --git a/drivers/thermal/intel/intel_soc_dts_iosf.h b/drivers/thermal/intel/intel_soc_dts_iosf.h
> index 625e37bf93dc..d0362d7acdef 100644
> --- a/drivers/thermal/intel/intel_soc_dts_iosf.h
> +++ b/drivers/thermal/intel/intel_soc_dts_iosf.h
> @@ -33,8 +33,6 @@ struct intel_soc_dts_sensors;
>
> struct intel_soc_dts_sensor_entry {
> int id;
> - u32 temp_mask;
> - u32 temp_shift;
> u32 store_status;
> u32 trip_mask;
> u32 trip_count;
> --
> 2.21.0
>

--
With Best Regards,
Andy Shevchenko


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