From 226d7843775eb58d00f62ec882dc4803d6d7bc20 Mon Sep 17 00:00:00 2001 From: Vladimir Serbinenko Date: Tue, 4 Nov 2014 21:09:23 +0100 Subject: ibexpeak, bd82x6x: Move to implicit length patching Change-Id: I43eef7f97398d7c4c3f8d9790920fa4402019dd7 Signed-off-by: Vladimir Serbinenko Reviewed-on: http://review.coreboot.org/7326 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi --- src/cpu/intel/model_2065x/acpi.c | 100 ++++++++++++++++++--------------------- 1 file changed, 45 insertions(+), 55 deletions(-) (limited to 'src/cpu/intel/model_2065x/acpi.c') diff --git a/src/cpu/intel/model_2065x/acpi.c b/src/cpu/intel/model_2065x/acpi.c index 870020fbb5..bfe801d587 100644 --- a/src/cpu/intel/model_2065x/acpi.c +++ b/src/cpu/intel/model_2065x/acpi.c @@ -48,10 +48,10 @@ static int get_cores_per_package(void) return cores; } -static int generate_cstate_entries(acpi_cstate_t *cstates, +static void generate_cstate_entries(acpi_cstate_t *cstates, int c1, int c2, int c3) { - int length, cstate_count = 0; + int cstate_count = 0; /* Count number of active C-states */ if (c1 > 0) @@ -61,74 +61,70 @@ static int generate_cstate_entries(acpi_cstate_t *cstates, if (c3 > 0) ++cstate_count; if (!cstate_count) - return 0; + return; - length = acpigen_write_package(cstate_count + 1); - length += acpigen_write_byte(cstate_count); + acpigen_write_package(cstate_count + 1); + acpigen_write_byte(cstate_count); /* Add an entry if the level is enabled */ if (c1 > 0) { cstates[c1].ctype = 1; - length += acpigen_write_CST_package_entry(&cstates[c1]); + acpigen_write_CST_package_entry(&cstates[c1]); } if (c2 > 0) { cstates[c2].ctype = 2; - length += acpigen_write_CST_package_entry(&cstates[c2]); + acpigen_write_CST_package_entry(&cstates[c2]); } if (c3 > 0) { cstates[c3].ctype = 3; - length += acpigen_write_CST_package_entry(&cstates[c3]); + acpigen_write_CST_package_entry(&cstates[c3]); } - acpigen_patch_len(length - 1); - return length; + acpigen_pop_len(); } -static int generate_C_state_entries(void) +static void generate_C_state_entries(void) { struct cpu_info *info; struct cpu_driver *cpu; - int len, lenif; struct device *lapic; struct cpu_intel_model_2065x_config *conf = NULL; /* Find the SpeedStep CPU in the device tree using magic APIC ID */ lapic = dev_find_lapic(SPEEDSTEP_APIC_MAGIC); if (!lapic) - return 0; + return; conf = lapic->chip_info; if (!conf) - return 0; + return; /* Find CPU map of supported C-states */ info = cpu_info(); if (!info) - return 0; + return; cpu = find_cpu_driver(info->cpu); if (!cpu || !cpu->cstates) - return 0; + return; - len = acpigen_emit_byte(0x14); /* MethodOp */ - len += acpigen_write_len_f(); /* PkgLength */ - len += acpigen_emit_namestring("_CST"); - len += acpigen_emit_byte(0x00); /* No Arguments */ + acpigen_emit_byte(0x14); /* MethodOp */ + acpigen_write_len_f(); /* PkgLength */ + acpigen_emit_namestring("_CST"); + acpigen_emit_byte(0x00); /* No Arguments */ /* If running on AC power */ - len += acpigen_emit_byte(0xa0); /* IfOp */ - lenif = acpigen_write_len_f(); /* PkgLength */ - lenif += acpigen_emit_namestring("PWRS"); - lenif += acpigen_emit_byte(0xa4); /* ReturnOp */ - lenif += generate_cstate_entries(cpu->cstates, conf->c1_acpower, - conf->c2_acpower, conf->c3_acpower); - acpigen_patch_len(lenif - 1); - len += lenif; + acpigen_emit_byte(0xa0); /* IfOp */ + acpigen_write_len_f(); /* PkgLength */ + acpigen_emit_namestring("PWRS"); + acpigen_emit_byte(0xa4); /* ReturnOp */ + generate_cstate_entries(cpu->cstates, conf->c1_acpower, + conf->c2_acpower, conf->c3_acpower); + acpigen_pop_len(); /* Else on battery power */ - len += acpigen_emit_byte(0xa4); /* ReturnOp */ - len += generate_cstate_entries(cpu->cstates, conf->c1_battery, - conf->c2_battery, conf->c3_battery); - acpigen_patch_len(len - 1); - return len; + acpigen_emit_byte(0xa4); /* ReturnOp */ + generate_cstate_entries(cpu->cstates, conf->c1_battery, + conf->c2_battery, conf->c3_battery); + acpigen_pop_len(); } static acpi_tstate_t tss_table_fine[] = { @@ -208,9 +204,8 @@ static int calculate_power(int tdp, int p1_ratio, int ratio) return (int)power; } -static int generate_P_state_entries(int core, int cores_per_package) +static void generate_P_state_entries(int core, int cores_per_package) { - int len, len_pss; int ratio_min, ratio_max, ratio_turbo, ratio_step; int coord_type, power_max, num_entries; int ratio, power, clock, clock_max; @@ -242,16 +237,16 @@ static int generate_P_state_entries(int core, int cores_per_package) power_max = 25000; /* Write _PCT indicating use of FFixedHW */ - len = acpigen_write_empty_PCT(); + acpigen_write_empty_PCT(); /* Write _PPC with no limit on supported P-state */ - len += acpigen_write_PPC_NVS(); + acpigen_write_PPC_NVS(); /* Write PSD indicating configured coordination type */ - len += acpigen_write_PSD_package(core, cores_per_package, coord_type); + acpigen_write_PSD_package(core, cores_per_package, coord_type); /* Add P-state entries in _PSS table */ - len += acpigen_write_name("_PSS"); + acpigen_write_name("_PSS"); /* Determine ratio points */ ratio_step = PSS_RATIO_STEP; @@ -264,13 +259,13 @@ static int generate_P_state_entries(int core, int cores_per_package) /* P[T] is Turbo state if enabled */ if (get_turbo_state() == TURBO_ENABLED) { /* _PSS package count including Turbo */ - len_pss = acpigen_write_package(num_entries + 2); + acpigen_write_package(num_entries + 2); msr = rdmsr(MSR_TURBO_RATIO_LIMIT); ratio_turbo = msr.lo & 0xff; /* Add entry for Turbo ratio */ - len_pss += acpigen_write_PSS_package( + acpigen_write_PSS_package( clock_max + 1, /*MHz*/ power_max, /*mW*/ PSS_LATENCY_TRANSITION, /*lat1*/ @@ -279,11 +274,11 @@ static int generate_P_state_entries(int core, int cores_per_package) ratio_turbo); /*status*/ } else { /* _PSS package count without Turbo */ - len_pss = acpigen_write_package(num_entries + 1); + acpigen_write_package(num_entries + 1); } /* First regular entry is max non-turbo ratio */ - len_pss += acpigen_write_PSS_package( + acpigen_write_PSS_package( clock_max, /*MHz*/ power_max, /*mW*/ PSS_LATENCY_TRANSITION, /*lat1*/ @@ -299,7 +294,7 @@ static int generate_P_state_entries(int core, int cores_per_package) power = calculate_power(power_max, ratio_max, ratio); clock = ratio * NEHALEM_BCLK + ratio / 3; - len_pss += acpigen_write_PSS_package( + acpigen_write_PSS_package( clock, /*MHz*/ power, /*mW*/ PSS_LATENCY_TRANSITION, /*lat1*/ @@ -309,15 +304,11 @@ static int generate_P_state_entries(int core, int cores_per_package) } /* Fix package length */ - len_pss--; - acpigen_patch_len(len_pss); - - return len + len_pss; + acpigen_pop_len(); } void generate_cpu_entries(void) { - int len_pr; int coreID, cpuID, pcontrol_blk = PMB0_BASE, plen = 6; int totalcores = dev_count_cpu(); int cores_per_package = get_cores_per_package(); @@ -334,23 +325,22 @@ void generate_cpu_entries(void) } /* Generate processor \_PR.CPUx */ - len_pr = acpigen_write_processor( + acpigen_write_processor( (cpuID-1)*cores_per_package+coreID-1, pcontrol_blk, plen); /* Generate P-state tables */ - len_pr += generate_P_state_entries( + generate_P_state_entries( cpuID-1, cores_per_package); /* Generate C-state tables */ - len_pr += generate_C_state_entries(); + generate_C_state_entries(); /* Generate T-state tables */ - len_pr += generate_T_state_entries( + generate_T_state_entries( cpuID-1, cores_per_package); - len_pr--; - acpigen_patch_len(len_pr); + acpigen_pop_len(); } } } -- cgit v1.2.3