diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c b/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c index 7c9be4fd1c8c..c90b35881a26 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c @@ -9,6 +9,7 @@ #include "intel_gt_clock_utils.h" #include "intel_gt_print.h" #include "intel_gt_regs.h" +#include "soc/intel_dram.h" static u32 read_reference_ts_freq(struct intel_uncore *uncore) { @@ -34,9 +35,7 @@ static u32 gen11_get_crystal_clock_freq(struct intel_uncore *uncore, u32 f24_mhz = 24000000; u32 f25_mhz = 25000000; u32 f38_4_mhz = 38400000; - u32 crystal_clock = - (rpm_config_reg & GEN11_RPM_CONFIG0_CRYSTAL_CLOCK_FREQ_MASK) >> - GEN11_RPM_CONFIG0_CRYSTAL_CLOCK_FREQ_SHIFT; + u32 crystal_clock = rpm_config_reg & GEN11_RPM_CONFIG0_CRYSTAL_CLOCK_FREQ_MASK; switch (crystal_clock) { case GEN11_RPM_CONFIG0_CRYSTAL_CLOCK_FREQ_24_MHZ: @@ -79,8 +78,7 @@ static u32 gen11_read_clock_frequency(struct intel_uncore *uncore) * register increments from this frequency (it might * increment only every few clock cycle). */ - freq >>= 3 - ((c0 & GEN10_RPM_CONFIG0_CTC_SHIFT_PARAMETER_MASK) >> - GEN10_RPM_CONFIG0_CTC_SHIFT_PARAMETER_SHIFT); + freq >>= 3 - REG_FIELD_GET(GEN10_RPM_CONFIG0_CTC_SHIFT_PARAMETER_MASK, c0); } return freq; @@ -101,8 +99,7 @@ static u32 gen9_read_clock_frequency(struct intel_uncore *uncore) * register increments from this frequency (it might * increment only every few clock cycle). */ - freq >>= 3 - ((ctc_reg & CTC_SHIFT_PARAMETER_MASK) >> - CTC_SHIFT_PARAMETER_SHIFT); + freq >>= 3 - REG_FIELD_GET(CTC_SHIFT_PARAMETER_MASK, ctc_reg); } return freq; @@ -151,7 +148,7 @@ static u32 gen4_read_clock_frequency(struct intel_uncore *uncore) * * Testing on actual hardware has shown there is no /16. */ - return RUNTIME_INFO(uncore->i915)->rawclk_freq * 1000; + return DIV_ROUND_CLOSEST(intel_fsb_freq(uncore->i915), 4) * 1000; } static u32 read_clock_frequency(struct intel_uncore *uncore) @@ -208,7 +205,7 @@ static u64 div_u64_roundup(u64 nom, u32 den) u64 intel_gt_clock_interval_to_ns(const struct intel_gt *gt, u64 count) { - return div_u64_roundup(count * NSEC_PER_SEC, gt->clock_frequency); + return mul_u64_u32_div(count, NSEC_PER_SEC, gt->clock_frequency); } u64 intel_gt_pm_interval_to_ns(const struct intel_gt *gt, u64 count) @@ -218,7 +215,7 @@ u64 intel_gt_pm_interval_to_ns(const struct intel_gt *gt, u64 count) u64 intel_gt_ns_to_clock_interval(const struct intel_gt *gt, u64 ns) { - return div_u64_roundup(gt->clock_frequency * ns, NSEC_PER_SEC); + return mul_u64_u32_div(ns, gt->clock_frequency, NSEC_PER_SEC); } u64 intel_gt_ns_to_pm_interval(const struct intel_gt *gt, u64 ns) |