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authorFelix Held <felix-coreboot@felixheld.de>2022-01-25 04:14:05 +0100
committerFelix Held <felix-coreboot@felixheld.de>2022-01-26 04:15:11 +0000
commitd4b5ad0ce395c44432151bf1eb20adb78d4662a7 (patch)
tree51c8376516a625d9e4a769f87f8aaf1bb7ac9a3f
parent978930e860fdd1f5efa013ae12bc564fef7e8bef (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>
-rw-r--r--src/soc/amd/cezanne/acpi.c4
-rw-r--r--src/soc/amd/common/block/cpu/noncar/cpu.c7
-rw-r--r--src/soc/amd/common/block/include/amdblocks/cpu.h1
-rw-r--r--src/soc/amd/picasso/acpi.c4
-rw-r--r--src/soc/amd/sabrina/acpi.c4
5 files changed, 11 insertions, 9 deletions
diff --git a/src/soc/amd/cezanne/acpi.c b/src/soc/amd/cezanne/acpi.c
index d390ca4f22..47f05b4bb2 100644
--- a/src/soc/amd/cezanne/acpi.c
+++ b/src/soc/amd/cezanne/acpi.c
@@ -320,9 +320,7 @@ void generate_cpu_entries(const struct device *device)
},
};
- threads_per_core = ((cpuid_ebx(CPUID_EBX_CORE_ID) & CPUID_EBX_THREADS_MASK)
- >> CPUID_EBX_THREADS_SHIFT)
- + 1;
+ threads_per_core = get_threads_per_core();
pstate_count = get_pstate_info(pstate_values, pstate_xpss_values);
logical_cores = get_cpu_count();
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);
diff --git a/src/soc/amd/picasso/acpi.c b/src/soc/amd/picasso/acpi.c
index fd95246eb2..622aa1645e 100644
--- a/src/soc/amd/picasso/acpi.c
+++ b/src/soc/amd/picasso/acpi.c
@@ -316,9 +316,7 @@ void generate_cpu_entries(const struct device *device)
},
};
- threads_per_core = ((cpuid_ebx(CPUID_EBX_CORE_ID) & CPUID_EBX_THREADS_MASK)
- >> CPUID_EBX_THREADS_SHIFT)
- + 1;
+ threads_per_core = get_threads_per_core();
pstate_count = get_pstate_info(pstate_values, pstate_xpss_values);
logical_cores = get_cpu_count();
diff --git a/src/soc/amd/sabrina/acpi.c b/src/soc/amd/sabrina/acpi.c
index ea67bcfe86..8fbe624e6e 100644
--- a/src/soc/amd/sabrina/acpi.c
+++ b/src/soc/amd/sabrina/acpi.c
@@ -322,9 +322,7 @@ void generate_cpu_entries(const struct device *device)
},
};
- threads_per_core = ((cpuid_ebx(CPUID_EBX_CORE_ID) & CPUID_EBX_THREADS_MASK)
- >> CPUID_EBX_THREADS_SHIFT)
- + 1;
+ threads_per_core = get_threads_per_core();
pstate_count = get_pstate_info(pstate_values, pstate_xpss_values);
logical_cores = get_cpu_count();