diff options
Diffstat (limited to 'src/soc/intel/baytrail')
| -rw-r--r-- | src/soc/intel/baytrail/acpi.c | 86 |
1 files changed, 40 insertions, 46 deletions
diff --git a/src/soc/intel/baytrail/acpi.c b/src/soc/intel/baytrail/acpi.c index 8870ef537a..458e2d5121 100644 --- a/src/soc/intel/baytrail/acpi.c +++ b/src/soc/intel/baytrail/acpi.c @@ -125,18 +125,18 @@ unsigned long acpi_fill_mcfg(unsigned long current) return current; } -static acpi_tstate_t baytrail_tss_table[] = { +static acpi_tstate_t soc_tss_table[] = { { 100, 1000, 0, 0x00, 0 }, - { 88, 875, 0, 0x1e, 0 }, - { 75, 750, 0, 0x1c, 0 }, - { 63, 625, 0, 0x1a, 0 }, - { 50, 500, 0, 0x18, 0 }, - { 38, 375, 0, 0x16, 0 }, - { 25, 250, 0, 0x14, 0 }, - { 13, 125, 0, 0x12, 0 }, + { 88, 875, 0, 0x1e, 0 }, + { 75, 750, 0, 0x1c, 0 }, + { 63, 625, 0, 0x1a, 0 }, + { 50, 500, 0, 0x18, 0 }, + { 38, 375, 0, 0x16, 0 }, + { 25, 250, 0, 0x14, 0 }, + { 13, 125, 0, 0x12, 0 }, }; -static void generate_T_state_entries(int core, int cores_per_package) +static void generate_t_state_entries(int core, int cores_per_package) { /* Indicate SW_ALL coordination for T-states */ acpigen_write_TSD_package(core, cores_per_package, SW_ALL); @@ -148,24 +148,23 @@ static void generate_T_state_entries(int core, int cores_per_package) acpigen_write_TPC("\\TLVL"); /* Write TSS table for MSR access */ - acpigen_write_TSS_package( - ARRAY_SIZE(baytrail_tss_table), baytrail_tss_table); + acpigen_write_TSS_package(ARRAY_SIZE(soc_tss_table), soc_tss_table); } static int calculate_power(int tdp, int p1_ratio, int ratio) { - u32 m; - u32 power; + u32 m, power; /* * M = ((1.1 - ((p1_ratio - ratio) * 0.00625)) / 1.1) ^ 2 - * - * Power = (ratio / p1_ratio) * m * tdp */ m = (110000 - ((p1_ratio - ratio) * 625)) / 11; m = (m * m) / 1000; + /* + * Power = (ratio / p1_ratio) * m * TDP + */ power = ((ratio * 100000 / p1_ratio) / 100); power *= (m / 100) * (tdp / 1000); power /= 1000; @@ -173,7 +172,7 @@ static int calculate_power(int tdp, int p1_ratio, int ratio) return (int)power; } -static void generate_P_state_entries(int core, int cores_per_package) +static void generate_p_state_entries(int core, int cores_per_package) { int ratio_min, ratio_max, ratio_turbo, ratio_step, ratio_range_2; int coord_type, power_max, power_unit, num_entries; @@ -232,12 +231,12 @@ static void generate_P_state_entries(int core, int cores_per_package) /* Add entry for Turbo ratio */ acpigen_write_PSS_package( - clock_max + 1, /*MHz*/ - power_max, /*mW*/ - 10, /*lat1*/ - 10, /*lat2*/ - control_status, /*control*/ - control_status); /*status*/ + clock_max + 1, /* MHz */ + power_max, /* mW */ + 10, /* lat1 */ + 10, /* lat2 */ + control_status, /* control */ + control_status); /* status */ } else { /* _PSS package count without Turbo */ acpigen_write_package(num_entries + 1); @@ -248,12 +247,12 @@ static void generate_P_state_entries(int core, int cores_per_package) /* First regular entry is max non-turbo ratio */ control_status = (ratio_max << 8) | vid_max; acpigen_write_PSS_package( - clock_max, /*MHz*/ - power_max, /*mW*/ - 10, /*lat1*/ - 10, /*lat2*/ - control_status, /*control */ - control_status); /*status*/ + clock_max, /* MHz */ + power_max, /* mW */ + 10, /* lat1 */ + 10, /* lat2 */ + control_status, /* control */ + control_status); /* status */ /* Set up ratio and vid ranges for VID calculation */ ratio_range_2 = (ratio_turbo - ratio_min) * 2; @@ -264,8 +263,8 @@ static void generate_P_state_entries(int core, int cores_per_package) ratio >= ratio_min; ratio -= ratio_step) { /* Calculate VID for this ratio */ - vid = ((ratio - ratio_min) * vid_range_2) / - ratio_range_2 + vid_min; + vid = ((ratio - ratio_min) * vid_range_2) / ratio_range_2 + vid_min; + /* Round up if remainder */ if (((ratio - ratio_min) * vid_range_2) % ratio_range_2) vid++; @@ -276,12 +275,12 @@ static void generate_P_state_entries(int core, int cores_per_package) control_status = (ratio << 8) | (vid & 0xff); acpigen_write_PSS_package( - clock, /*MHz*/ - power, /*mW*/ - 10, /*lat1*/ - 10, /*lat2*/ - control_status, /*control*/ - control_status); /*status*/ + clock, /* MHz */ + power, /* mW */ + 10, /* lat1 */ + 10, /* lat2 */ + control_status, /* control */ + control_status); /* status */ } /* Fix package length */ @@ -301,20 +300,16 @@ void generate_cpu_entries(const struct device *device) } /* Generate processor \_SB.CPUx */ - acpigen_write_processor( - core, pcontrol_blk, plen); + acpigen_write_processor(core, pcontrol_blk, plen); /* Generate P-state tables */ - generate_P_state_entries( - core, pattrs->num_cpus); + generate_p_state_entries(core, pattrs->num_cpus); /* Generate C-state tables */ - acpigen_write_CST_package( - cstate_map, ARRAY_SIZE(cstate_map)); + acpigen_write_CST_package(cstate_map, ARRAY_SIZE(cstate_map)); /* Generate T-state tables */ - generate_T_state_entries( - core, pattrs->num_cpus); + generate_t_state_entries(core, pattrs->num_cpus); acpigen_pop_len(); } @@ -343,8 +338,7 @@ unsigned long acpi_madt_irq_overrides(unsigned long current) sci_flags |= MP_IRQ_POLARITY_HIGH; irqovr = (void *)current; - current += acpi_create_madt_irqoverride(irqovr, 0, sci_irq, sci_irq, - sci_flags); + current += acpi_create_madt_irqoverride(irqovr, 0, sci_irq, sci_irq, sci_flags); return current; } |