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cpu/intel/model_206ax/acpi.c: Do not report P_BLK 

IO MWAIT redirection is disabled, which means reads to the P_LVL2 and
P_LVL3 "registers" will never produce any C-state transition requests.

Change-Id: Ibbf7b915a9909d6bc8e784a439df751e11ec5bee
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55216
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
This commit is contained in:
Angel Pons 2021-06-04 12:57:21 +02:00 committed by Patrick Georgi
parent 1128817ed6
commit 772c09739e
1 changed files with 2 additions and 8 deletions
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10
src/cpu/intel/model_2065x/acpi.c
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@ -205,7 +205,7 @@ static void generate_P_state_entries(int core, int cores_per_package)
void generate_cpu_entries(const struct device *device) void generate_cpu_entries(const struct device *device)
{ {
int coreID, cpuID, pcontrol_blk = PMB0_BASE, plen = 6; int coreID, cpuID;
int totalcores = dev_count_cpu(); int totalcores = dev_count_cpu();
int cores_per_package = get_cores_per_package(); int cores_per_package = get_cores_per_package();
int numcpus = totalcores/cores_per_package; int numcpus = totalcores/cores_per_package;
@ -215,15 +215,9 @@ void generate_cpu_entries(const struct device *device)
for (cpuID = 1; cpuID <= numcpus; cpuID++) { for (cpuID = 1; cpuID <= numcpus; cpuID++) {
for (coreID = 1; coreID <= cores_per_package; coreID++) { for (coreID = 1; coreID <= cores_per_package; coreID++) {
if (coreID > 1) {
pcontrol_blk = 0;
plen = 0;
}
/* Generate processor \_SB.CPUx */ /* Generate processor \_SB.CPUx */
acpigen_write_processor( acpigen_write_processor(
(cpuID-1)*cores_per_package+coreID-1, (cpuID-1)*cores_per_package+coreID-1, 0, 0);
pcontrol_blk, plen);
/* Generate P-state tables */ /* Generate P-state tables */
generate_P_state_entries( generate_P_state_entries(