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powercap: intel_rapl: add support for Sapphire Rapids 

RAPL on SPR behaves similar to Haswell server, except that SPR uses
a fixed energy unit (1 Joule) for the PSYS RAPL domain.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
zero-sugar-mainline-defconfig
Zhang Rui 2020-06-29 13:34:50 +08:00 committed by Rafael J. Wysocki
parent 9ebcfadb06
commit 2d798d9f59
1 changed files with 22 additions and 1 deletions
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23
drivers/powercap/intel_rapl_common.c
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@ -93,6 +93,7 @@ struct rapl_defaults {
u64 (*compute_time_window)(struct rapl_package *rp, u64 val,
bool to_raw);
unsigned int dram_domain_energy_unit;
unsigned int psys_domain_energy_unit;
};
static struct rapl_defaults *rapl_defaults;
@ -533,12 +534,23 @@ static void rapl_init_domains(struct rapl_package *rp)
for (j = 0; j < RAPL_DOMAIN_REG_MAX; j++)
rd->regs[j] = rp->priv->regs[i][j];
if (i == RAPL_DOMAIN_DRAM) {
switch (i) {
case RAPL_DOMAIN_DRAM:
rd->domain_energy_unit =
rapl_defaults->dram_domain_energy_unit;
if (rd->domain_energy_unit)
pr_info("DRAM domain energy unit %dpj\n",
rd->domain_energy_unit);
break;
case RAPL_DOMAIN_PLATFORM:
rd->domain_energy_unit =
rapl_defaults->psys_domain_energy_unit;
if (rd->domain_energy_unit)
pr_info("Platform domain energy unit %dpj\n",
rd->domain_energy_unit);
break;
default:
break;
}
rd++;
}
@ -919,6 +931,14 @@ static const struct rapl_defaults rapl_defaults_hsw_server = {
.dram_domain_energy_unit = 15300,
};
static const struct rapl_defaults rapl_defaults_spr_server = {
.check_unit = rapl_check_unit_core,
.set_floor_freq = set_floor_freq_default,
.compute_time_window = rapl_compute_time_window_core,
.dram_domain_energy_unit = 15300,
.psys_domain_energy_unit = 1000000000,
};
static const struct rapl_defaults rapl_defaults_byt = {
.floor_freq_reg_addr = IOSF_CPU_POWER_BUDGET_CTL_BYT,
.check_unit = rapl_check_unit_atom,
@ -978,6 +998,7 @@ static const struct x86_cpu_id rapl_ids[] __initconst = {
X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE_L, &rapl_defaults_core),
X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE, &rapl_defaults_core),
X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE_L, &rapl_defaults_core),
X86_MATCH_INTEL_FAM6_MODEL(SAPPHIRERAPIDS_X, &rapl_defaults_spr_server),
X86_MATCH_INTEL_FAM6_MODEL(ATOM_SILVERMONT, &rapl_defaults_byt),
X86_MATCH_INTEL_FAM6_MODEL(ATOM_AIRMONT, &rapl_defaults_cht),