Stefan Reinauer (stefan.reinauer@coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/943
-gerrit
commit 8dd1dfea17870fb58c44e74bbc225a1723b8bc75 Author: Stefan Reinauer stefan.reinauer@coreboot.org Date: Fri Apr 27 21:34:16 2012 +0200
Rework ACPI CST table generation
... in order to unify the Sandybridge and Lenovo implementations currently used in the tree.
- use acpi_addr_t in acpigen_write_register() - use acpi_cstate_t for cstate tables (and fix up the x60 and t60) - drop cst_entry from acpigen.h
Change-Id: Icb87418d44d355f607c4a67300107b40f40b3b3f Signed-off-by: Stefan Reinauer reinauer@google.com --- src/arch/x86/boot/acpigen.c | 50 ++++++++++++++++----------------- src/arch/x86/include/arch/acpi.h | 7 +++++ src/arch/x86/include/arch/acpigen.h | 18 +++--------- src/cpu/amd/model_fxx/Makefile.inc | 2 +- src/cpu/intel/speedstep/acpi.c | 4 +- src/mainboard/lenovo/t60/mainboard.c | 10 +++--- src/mainboard/lenovo/x60/mainboard.c | 10 +++--- 7 files changed, 48 insertions(+), 53 deletions(-)
diff --git a/src/arch/x86/boot/acpigen.c b/src/arch/x86/boot/acpigen.c index 7dc7fed..b44f9b9 100644 --- a/src/arch/x86/boot/acpigen.c +++ b/src/arch/x86/boot/acpigen.c @@ -374,7 +374,7 @@ int acpigen_write_PSD_package(u32 domain, u32 numprocs, PSD_coord coordtype) return len + lenh; }
-static int acpigen_write_CST_package_entry(struct cst_entry *entry) +static int acpigen_write_CST_package_entry(acpi_cstate_t *cstate) { int len, len0; char *start, *end; @@ -382,19 +382,19 @@ static int acpigen_write_CST_package_entry(struct cst_entry *entry) len0 = acpigen_write_package(4); len = acpigen_write_resourcetemplate_header(); start = acpigen_get_current(); - acpigen_write_register(entry->type, entry->width, entry->offset, entry->addrsize, entry->address); + acpigen_write_register(&cstate->resource); end = acpigen_get_current(); - len += end-start; + len += end - start; len += acpigen_write_resourcetemplate_footer(len); len += len0; - len += acpigen_write_dword(entry->ctype); - len += acpigen_write_dword(entry->latency); - len += acpigen_write_dword(entry->power); + len += acpigen_write_dword(cstate->ctype); + len += acpigen_write_dword(cstate->latency); + len += acpigen_write_dword(cstate->power); acpigen_patch_len(len - 1); return len; }
-int acpigen_write_CST_package(struct cst_entry *entry, int nentries) +int acpigen_write_CST_package(acpi_cstate_t *cstate, int nentries) { int len, lenh, lenp, i; lenh = acpigen_write_name("_CST"); @@ -402,7 +402,7 @@ int acpigen_write_CST_package(struct cst_entry *entry, int nentries) len = acpigen_write_dword(nentries);
for (i = 0; i < nentries; i++) - len += acpigen_write_CST_package_entry(entry + i); + len += acpigen_write_CST_package_entry(cstate + i);
len += lenp; acpigen_patch_len(len - 1); @@ -434,25 +434,23 @@ int acpigen_write_mem32fixed(int readwrite, u32 base, u32 size) return 12; }
-int acpigen_write_register(int type, int width, int offset, int addrsize, u64 address) +int acpigen_write_register(acpi_addr_t *addr) { - acpigen_emit_byte(0x82); - /* Byte 1+2: length (0x000c) */ - acpigen_emit_byte(0x0c); - acpigen_emit_byte(0x00); - /* bit1-7 are ignored */ - acpigen_emit_byte(type); /* FFixedHW */ - acpigen_emit_byte(width); /* register width */ - acpigen_emit_byte(offset); /* register offset */ - acpigen_emit_byte(addrsize); /* register address size */ - acpigen_emit_byte(address & 0xff); /* register address 0-7 */ - acpigen_emit_byte((address >> 8) & 0xff); /* register address 8-15 */ - acpigen_emit_byte((address >> 16) & 0xff); /* register address 16-23 */ - acpigen_emit_byte((address >> 24) & 0xff); /* register address 24-31 */ - acpigen_emit_byte((address >> 32) & 0xff); /* register address 32-39 */ - acpigen_emit_byte((address >> 40) & 0xff); /* register address 40-47 */ - acpigen_emit_byte((address >> 48) & 0xff); /* register address 48-55 */ - acpigen_emit_byte((address >> 56) & 0xff); /* register address 56-63 */ + acpigen_emit_byte(0x82); /* Register Descriptor */ + acpigen_emit_byte(0x0c); /* Register Length 7:0 */ + acpigen_emit_byte(0x00); /* Register Length 15:8 */ + acpigen_emit_byte(addr->space_id); /* Address Space ID */ + acpigen_emit_byte(addr->bit_width); /* Register Bit Width */ + acpigen_emit_byte(addr->bit_offset); /* Register Bit Offset */ + acpigen_emit_byte(addr->resv); /* Register Access Size */ + acpigen_emit_byte(addr->addrl & 0xff); /* Register Address Low */ + acpigen_emit_byte((addr->addrl >> 8) & 0xff); + acpigen_emit_byte((addr->addrl >> 16) & 0xff); + acpigen_emit_byte((addr->addrl >> 24) & 0xff); + acpigen_emit_byte(addr->addrh & 0xff); /* Register Address High */ + acpigen_emit_byte((addr->addrh >> 8) & 0xff); + acpigen_emit_byte((addr->addrh >> 16) & 0xff); + acpigen_emit_byte((addr->addrh >> 24) & 0xff); return 15; }
diff --git a/src/arch/x86/include/arch/acpi.h b/src/arch/x86/include/arch/acpi.h index d46cbc2..ea85d9f 100644 --- a/src/arch/x86/include/arch/acpi.h +++ b/src/arch/x86/include/arch/acpi.h @@ -411,6 +411,13 @@ typedef struct acpi_hest_hen { u32 error_threshold_win; } __attribute__ ((packed)) acpi_hest_hen_t;
+typedef struct acpi_cstate { + u8 ctype; + u16 latency; + u32 power; + acpi_addr_t resource; +} __attribute__ ((packed)) acpi_cstate_t; + /* These are implemented by the target port or north/southbridge. */ unsigned long write_acpi_tables(unsigned long addr); unsigned long acpi_fill_madt(unsigned long current); diff --git a/src/arch/x86/include/arch/acpigen.h b/src/arch/x86/include/arch/acpigen.h index 9dc9675..4d16040 100644 --- a/src/arch/x86/include/arch/acpigen.h +++ b/src/arch/x86/include/arch/acpigen.h @@ -23,17 +23,7 @@ #include <assert.h> #include <stdlib.h> #include <stdint.h> - -struct cst_entry { - int type; - int width; - int offset; - int addrsize; - u64 address; - int ctype; - int latency; - int power; -}; +#include <arch/acpi.h>
void acpigen_patch_len(int len); void acpigen_set_current(char *curr); @@ -56,16 +46,16 @@ int acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat, u32 busmLat u32 control, u32 status); typedef enum { SW_ALL=0xfc, SW_ANY=0xfd, HW_ALL=0xfe } PSD_coord; int acpigen_write_PSD_package(u32 domain, u32 numprocs, PSD_coord coordtype); -int acpigen_write_CST_package(struct cst_entry *entry, int nentries); +int acpigen_write_CST_package(acpi_cstate_t *entry, int nentries); int acpigen_write_processor(u8 cpuindex, u32 pblock_addr, u8 pblock_len); int acpigen_write_mem32fixed(int readwrite, u32 base, u32 size); int acpigen_write_io16(u16 min, u16 max, u8 align, u8 len, u8 decode16); -int acpigen_write_register(int type, int width, int offset, int addrsize, u64 address); +int acpigen_write_register(acpi_addr_t *addr); int acpigen_write_resourcetemplate_header(void); int acpigen_write_resourcetemplate_footer(int len); int acpigen_write_mainboard_resource_template(void); int acpigen_write_mainboard_resources(const char *scope, const char *name);
-int get_cst_entries(struct cst_entry **); +int get_cst_entries(acpi_cstate_t **);
#endif diff --git a/src/cpu/amd/model_fxx/Makefile.inc b/src/cpu/amd/model_fxx/Makefile.inc index 948e235..50b6f61 100644 --- a/src/cpu/amd/model_fxx/Makefile.inc +++ b/src/cpu/amd/model_fxx/Makefile.inc @@ -3,4 +3,4 @@ driver-y += model_fxx_init.c ramstage-y += apic_timer.c ramstage-y += model_fxx_update_microcode.c ramstage-y += processor_name.c -ramstage-y += powernow_acpi.c +ramstage-$(CONFIG_GENERATE_ACPI_TABLES) += powernow_acpi.c diff --git a/src/cpu/intel/speedstep/acpi.c b/src/cpu/intel/speedstep/acpi.c index 00c4ae9..5cc4c1d 100644 --- a/src/cpu/intel/speedstep/acpi.c +++ b/src/cpu/intel/speedstep/acpi.c @@ -62,7 +62,7 @@ static int get_fsb(void) return 200; }
-int __attribute__((weak)) get_cst_entries(struct cst_entry **entries __attribute__((unused))) +int __attribute__((weak)) get_cst_entries(acpi_cstate_t **entries __attribute__((unused))) { return 0; } @@ -76,7 +76,7 @@ void generate_cpu_entries(void) int cores_per_package = (cpuid_ebx(1)>>16) & 0xff; int numcpus = totalcores/cores_per_package; // this assumes that all CPUs share the same layout int count; - struct cst_entry *cst_entries; + acpi_cstate_t *cst_entries;
printk(BIOS_DEBUG, "Found %d CPU(s) with %d core(s) each.\n", numcpus, cores_per_package);
diff --git a/src/mainboard/lenovo/t60/mainboard.c b/src/mainboard/lenovo/t60/mainboard.c index 1817b4b..a9f4117 100644 --- a/src/mainboard/lenovo/t60/mainboard.c +++ b/src/mainboard/lenovo/t60/mainboard.c @@ -37,13 +37,13 @@ #include <pc80/mc146818rtc.h> #include <arch/x86/include/arch/acpigen.h>
-static struct cst_entry cst_entries[] = { - { 0x7f, 1, 2, 0, 1, 1, 1, 1000 }, - { 0x01, 8, 0, 0, DEFAULT_PMBASE + LV2, 2, 1, 500 }, - { 0x01, 8, 0, 0, DEFAULT_PMBASE + LV3, 2, 17, 250 }, +static acpi_cstate_t cst_entries[] = { + { 1, 1, 1000, { 0x7f, 1, 2, { 0 }, 1, 0 } }, + { 2, 1, 500, { 0x01, 8, 0, { 0 }, DEFAULT_PMBASE + LV2, 0 } }, + { 2, 17, 250, { 0x01, 8, 0, { 0 }, DEFAULT_PMBASE + LV3, 0 } }, };
-int get_cst_entries(struct cst_entry **entries) +int get_cst_entries(acpi_cstate_t **entries) { *entries = cst_entries; return ARRAY_SIZE(cst_entries); diff --git a/src/mainboard/lenovo/x60/mainboard.c b/src/mainboard/lenovo/x60/mainboard.c index 89ac489..b45342a 100644 --- a/src/mainboard/lenovo/x60/mainboard.c +++ b/src/mainboard/lenovo/x60/mainboard.c @@ -38,13 +38,13 @@ #include "dock.h" #include <arch/x86/include/arch/acpigen.h>
-static struct cst_entry cst_entries[] = { - { 0x7f, 1, 2, 0, 1, 1, 1, 1000 }, - { 0x01, 8, 0, 0, DEFAULT_PMBASE + LV2, 2, 1, 500 }, - { 0x01, 8, 0, 0, DEFAULT_PMBASE + LV3, 2, 17, 250 }, +static acpi_cstate_t cst_entries[] = { + { 1, 1, 1000, { 0x7f, 1, 2, { 0 }, 1, 0 } }, + { 2, 1, 500, { 0x01, 8, 0, { 0 }, DEFAULT_PMBASE + LV2, 0 } }, + { 2, 17, 250, { 0x01, 8, 0, { 0 }, DEFAULT_PMBASE + LV3, 0 } }, };
-int get_cst_entries(struct cst_entry **entries) +int get_cst_entries(acpi_cstate_t **entries) { *entries = cst_entries; return ARRAY_SIZE(cst_entries);