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authorFelix Held <felix-coreboot@felixheld.de>2023-03-23 23:44:03 +0100
committerFelix Held <felix-coreboot@felixheld.de>2023-03-27 12:02:21 +0000
commit23a398e001b55950f7759aa7ffa2ec966e2ea917 (patch)
tree87e4cf413dd987a8b3b6f1cee6211cdd28bda6bd /src/soc/amd/cezanne
parentfd5d26522c021c8f7a3242609f3b54cf209a8767 (diff)
soc/amd: introduce and use get_uvolts_from_vid for SVI2 and SVI3
Instead of implementing the conversion from the raw serial voltage ID value to the voltage in microvolts in every SoC, introduce the SOC_AMD_COMMON_BLOCK_SVI[2,3] Kconfig options for the SoC to select the correct version, implement get_uvolts_from_vid for both cases and only include the selected implementation in the build. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I344641217e6e4654fd281d434b88e346e0482f57 Reviewed-on: https://review.coreboot.org/c/coreboot/+/73995 Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com> Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/amd/cezanne')
-rw-r--r--src/soc/amd/cezanne/Kconfig1
-rw-r--r--src/soc/amd/cezanne/acpi.c8
-rw-r--r--src/soc/amd/cezanne/include/soc/msr.h4
3 files changed, 2 insertions, 11 deletions
diff --git a/src/soc/amd/cezanne/Kconfig b/src/soc/amd/cezanne/Kconfig
index 046fd233f4..dbb628bfff 100644
--- a/src/soc/amd/cezanne/Kconfig
+++ b/src/soc/amd/cezanne/Kconfig
@@ -63,6 +63,7 @@ config SOC_AMD_CEZANNE
select SOC_AMD_COMMON_BLOCK_SMU
select SOC_AMD_COMMON_BLOCK_SMU_SX_ENTRY
select SOC_AMD_COMMON_BLOCK_SPI
+ select SOC_AMD_COMMON_BLOCK_SVI2
select SOC_AMD_COMMON_BLOCK_TSC_FAM17H_19H
select SOC_AMD_COMMON_BLOCK_UART
select SOC_AMD_COMMON_BLOCK_UCODE
diff --git a/src/soc/amd/cezanne/acpi.c b/src/soc/amd/cezanne/acpi.c
index 43ed7fed05..cebdf7c5b9 100644
--- a/src/soc/amd/cezanne/acpi.c
+++ b/src/soc/amd/cezanne/acpi.c
@@ -146,13 +146,7 @@ uint32_t get_pstate_core_power(union pstate_msr pstate_reg)
current_divisor = pstate_reg.idd_div;
/* Voltage */
- if ((core_vid >= 0xF8) && (core_vid <= 0xFF)) {
- /* Voltage off for VID codes 0xF8 to 0xFF */
- voltage_in_uvolts = 0;
- } else {
- voltage_in_uvolts = SERIAL_VID_2_MAX_MICROVOLTS -
- (SERIAL_VID_2_DECODE_MICROVOLTS * core_vid);
- }
+ voltage_in_uvolts = get_uvolts_from_vid(core_vid);
/* Power in mW */
power_in_mw = (voltage_in_uvolts) / 10 * current_value_amps;
diff --git a/src/soc/amd/cezanne/include/soc/msr.h b/src/soc/amd/cezanne/include/soc/msr.h
index fdbe47e342..79ebc7eee5 100644
--- a/src/soc/amd/cezanne/include/soc/msr.h
+++ b/src/soc/amd/cezanne/include/soc/msr.h
@@ -22,10 +22,6 @@ union pstate_msr {
#define PSTATE_DEF_FREQ_DIV_MAX 0x3E
#define PSTATE_DEF_CORE_FREQ_BASE 25
-/* Value defined in Serial VID Interface 2.0 spec (#48022, NDA only) */
-#define SERIAL_VID_2_DECODE_MICROVOLTS 6250
-#define SERIAL_VID_2_MAX_MICROVOLTS 1550000L
-
#define MSR_CPPC_CAPABILITY_1 0xc00102b0
#define SHIFT_CPPC_CAPABILITY_1_HIGHEST_PERF 24
#define SHIFT_CPPC_CAPABILITY_1_NOMINAL_PERF 16