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soc/amd/*/acpi: factor out common get_pstate_info implementation

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The implementations of get_pstate_info of Picasso, Cezanne, Mendocino,
Phoenix and Glinda are identical, so factor it out and move it to the
common AMD SoC code. The SoC-specific get_pstate_core_freq and
get_pstate_core_power functions remain in the SoC-specific code.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ibe0494f1747f381a75b3dd71a8cc38fdc6dce042
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73505
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
This commit is contained in:
Felix Held
2023-03-07 02:32:11 +01:00
parent e266dacaa1
commit e4fc7b0ba6
7 changed files with 56 additions and 222 deletions
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46
src/soc/amd/glinda/acpi.c
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@@ -98,7 +98,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
fadt->flags |= cfg->common_config.fadt_flags; /* additional board-specific flags */
}
static uint32_t get_pstate_core_freq(msr_t pstate_def)
uint32_t get_pstate_core_freq(msr_t pstate_def)
{
uint32_t core_freq, core_freq_mul, core_freq_div;
bool valid_freq_divisor;
@@ -136,7 +136,7 @@ static uint32_t get_pstate_core_freq(msr_t pstate_def)
return core_freq;
}
static uint32_t get_pstate_core_power(msr_t pstate_def)
uint32_t get_pstate_core_power(msr_t pstate_def)
{
uint32_t voltage_in_uvolts, core_vid, current_value_amps, current_divisor, power_in_mw;
@@ -184,48 +184,6 @@ static uint32_t get_pstate_core_power(msr_t pstate_def)
return power_in_mw;
}
/*
* Populate structure describing enabled p-states and return count of enabled p-states.
*/
size_t get_pstate_info(struct acpi_sw_pstate *pstate_values,
struct acpi_xpss_sw_pstate *pstate_xpss_values)
{
msr_t pstate_def;
size_t pstate_count, pstate;
uint32_t pstate_enable, max_pstate;
pstate_count = 0;
max_pstate = (rdmsr(PS_LIM_REG).lo & PS_LIM_MAX_VAL_MASK) >> PS_MAX_VAL_SHFT;
for (pstate = 0; pstate <= max_pstate; pstate++) {
pstate_def = rdmsr(PSTATE_MSR(pstate));
pstate_enable = (pstate_def.hi & PSTATE_DEF_HI_ENABLE_MASK)
>> PSTATE_DEF_HI_ENABLE_SHIFT;
if (!pstate_enable)
continue;
pstate_values[pstate_count].core_freq = get_pstate_core_freq(pstate_def);
pstate_values[pstate_count].power = get_pstate_core_power(pstate_def);
pstate_values[pstate_count].transition_latency = 0;
pstate_values[pstate_count].bus_master_latency = 0;
pstate_values[pstate_count].control_value = pstate;
pstate_values[pstate_count].status_value = pstate;
pstate_xpss_values[pstate_count].core_freq =
(uint64_t)pstate_values[pstate_count].core_freq;
pstate_xpss_values[pstate_count].power =
(uint64_t)pstate_values[pstate_count].power;
pstate_xpss_values[pstate_count].transition_latency = 0;
pstate_xpss_values[pstate_count].bus_master_latency = 0;
pstate_xpss_values[pstate_count].control_value = (uint64_t)pstate;
pstate_xpss_values[pstate_count].status_value = (uint64_t)pstate;
pstate_count++;
}
return pstate_count;
}
const acpi_cstate_t cstate_cfg_table[] = {
[0] = {
.ctype = 1,