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soc/intel/baytrail/acpi.c: Align with Braswell 

This reduces the differences between Bay Trail and Braswell.

Tested with BUILD_TIMELESS=1, Google Ninja remains identical.

Change-Id: I0b07f8d52203c0a6d20b747f36d4d22cf53c791c
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43189
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Angel Pons 2020-07-07 17:34:21 +02:00
parent 0ee86f01f2
commit 06e44a862e
1 changed files with 40 additions and 46 deletions
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86
src/soc/intel/baytrail/acpi.c
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@ -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;
}