soc/amd: rename ACPI_CPU_CONTROL to ACPI_CSTATE_CONTROL for non-CAR CPUs

The legacy ACPI CPU control registers in IO space where the first 4 IO
locations control the CPU throttling value don't exist any more on the
Zen-based CPUs. Instead this IO address is written to MSR_CSTATE_ADDRESS
in set_cstate_io_addr which will cause accesses from the 8 IO addresses
beginning with ACPI_CSTATE_CONTROL to be trapped in the CPU core. Reads
from those IO addresses will cause the CPU to enter low C states.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I2c34e201cc0add1026edd7a97c70aa57f057782b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73427
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/soc/amd/common/block/cpu/noncar/cpu.c b/src/soc/amd/common/block/cpu/noncar/cpu.c
index 8fd371564e..8151b964d0 100644
--- a/src/soc/amd/common/block/cpu/noncar/cpu.c
+++ b/src/soc/amd/common/block/cpu/noncar/cpu.c
@@ -24,6 +24,6 @@ void set_cstate_io_addr(void)
 	msr_t cst_addr;
 
 	cst_addr.hi = 0;
-	cst_addr.lo = ACPI_CPU_CONTROL;
+	cst_addr.lo = ACPI_CSTATE_CONTROL;
 	wrmsr(MSR_CSTATE_ADDRESS, cst_addr);
 }