diff options
| author | Felix Held <felix-coreboot@felixheld.de> | 2022-01-25 04:14:05 +0100 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-01-26 04:15:11 +0000 |
| commit | d4b5ad0ce395c44432151bf1eb20adb78d4662a7 (patch) | |
| tree | 51c8376516a625d9e4a769f87f8aaf1bb7ac9a3f /src/soc/amd/common/block | |
| parent | 978930e860fdd1f5efa013ae12bc564fef7e8bef (diff) | |
soc/amd/cezanne,picasso,sabrina: factor out get_threads_per_core
This code is common to at least all Zen-based APUs (Picasso, Cezanne,
Sabrina) and is also useful outside of the SoC-specific dynamic ACPI
table generation code.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ie96d4429fb6ed9223efed9b3c754e04052d7ca7c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61357
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Rob Barnes <robbarnes@google.com>
Reviewed-by: Chris Wang <chris.wang@amd.corp-partner.google.com>
Reviewed-by: Eric Peers <epeers@google.com>
Diffstat (limited to 'src/soc/amd/common/block')
| -rw-r--r-- | src/soc/amd/common/block/cpu/noncar/cpu.c | 7 | ||||
| -rw-r--r-- | src/soc/amd/common/block/include/amdblocks/cpu.h | 1 |
2 files changed, 8 insertions, 0 deletions
diff --git a/src/soc/amd/common/block/cpu/noncar/cpu.c b/src/soc/amd/common/block/cpu/noncar/cpu.c index 98926bff7e..b635cad750 100644 --- a/src/soc/amd/common/block/cpu/noncar/cpu.c +++ b/src/soc/amd/common/block/cpu/noncar/cpu.c @@ -1,6 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0-only */ #include <amdblocks/cpu.h> +#include <cpu/amd/cpuid.h> #include <cpu/cpu.h> #include <cpu/x86/msr.h> #include <cpu/amd/msr.h> @@ -11,6 +12,12 @@ int get_cpu_count(void) return 1 + (cpuid_ecx(0x80000008) & 0xff); } +unsigned int get_threads_per_core(void) +{ + return 1 + ((cpuid_ebx(CPUID_EBX_CORE_ID) & CPUID_EBX_THREADS_MASK) + >> CPUID_EBX_THREADS_SHIFT); +} + void set_cstate_io_addr(void) { msr_t cst_addr; diff --git a/src/soc/amd/common/block/include/amdblocks/cpu.h b/src/soc/amd/common/block/include/amdblocks/cpu.h index 6576c3b993..de3fb84d12 100644 --- a/src/soc/amd/common/block/include/amdblocks/cpu.h +++ b/src/soc/amd/common/block/include/amdblocks/cpu.h @@ -5,6 +5,7 @@ void early_cache_setup(void); int get_cpu_count(void); +unsigned int get_threads_per_core(void); void set_cstate_io_addr(void); void write_resume_eip(void); |