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authorNico Huber <nico.h@gmx.de>2017-09-01 21:14:36 +0200
committerPatrick Rudolph <siro@das-labor.org>2017-11-04 17:23:06 +0000
commit4d211ac08d79e3925d0ad168fc73631113090a6c (patch)
tree1fae9c806df99e51d1f14f0996b57af31582a1d1 /src/arch/x86
parentb2b2015be04c9e1e5a952bf9a54c4e284e068e9e (diff)
downloadcoreboot-4d211ac08d79e3925d0ad168fc73631113090a6c.tar.xz
arch/x86/acpigen: Add function to write a CPU package
Emits a list of CPU cores, e.g. Name (PPKG, Package (2) { \_PR.CP00, \_PR.CP01 }) Tested on Lenovo Thinkpad T500. Change-Id: I10e9ebad84343d1fb282b3fbb28f5f014f664f14 Signed-off-by: Nico Huber <nico.h@gmx.de> Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/21324 Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/arch/x86')
-rw-r--r--src/arch/x86/acpigen.c16
-rw-r--r--src/arch/x86/include/arch/acpigen.h3
2 files changed, 19 insertions, 0 deletions
diff --git a/src/arch/x86/acpigen.c b/src/arch/x86/acpigen.c
index 758386d8a8..9637b7de96 100644
--- a/src/arch/x86/acpigen.c
+++ b/src/arch/x86/acpigen.c
@@ -353,6 +353,22 @@ void acpigen_write_processor(u8 cpuindex, u32 pblock_addr, u8 pblock_len)
acpigen_emit_byte(pblock_len);
}
+void acpigen_write_processor_package(const char *const name,
+ const unsigned int first_core,
+ const unsigned int core_count)
+{
+ unsigned int i;
+ char pscope[16];
+
+ acpigen_write_name(name);
+ acpigen_write_package(core_count);
+ for (i = first_core; i < first_core + core_count; ++i) {
+ snprintf(pscope, sizeof(pscope), CONFIG_ACPI_CPU_STRING, i);
+ acpigen_emit_namestring(pscope);
+ }
+ acpigen_pop_len();
+}
+
/*
* Generate ACPI AML code for OperationRegion
* Arg0: Pointer to struct opregion opreg = OPREGION(rname, space, offset, len)
diff --git a/src/arch/x86/include/arch/acpigen.h b/src/arch/x86/include/arch/acpigen.h
index 37d0d5572d..9ec6ee1bf3 100644
--- a/src/arch/x86/include/arch/acpigen.h
+++ b/src/arch/x86/include/arch/acpigen.h
@@ -219,6 +219,9 @@ typedef enum { CSD_HW_ALL = 0xfe } CSD_coord;
void acpigen_write_CSD_package(u32 domain, u32 numprocs, CSD_coord coordtype,
u32 index);
void acpigen_write_processor(u8 cpuindex, u32 pblock_addr, u8 pblock_len);
+void acpigen_write_processor_package(const char *name,
+ unsigned int first_core,
+ unsigned int core_count);
void acpigen_write_TSS_package(int entries, acpi_tstate_t *tstate_list);
void acpigen_write_TSD_package(u32 domain, u32 numprocs, PSD_coord coordtype);
void acpigen_write_mem32fixed(int readwrite, u32 base, u32 size);