Author: ruik
Date: 2009-02-01 19:35:15 +0100 (Sun, 01 Feb 2009)
New Revision: 3925
Added:
trunk/coreboot-v2/src/arch/i386/boot/acpigen.c
trunk/coreboot-v2/src/arch/i386/include/arch/acpigen.h
trunk/coreboot-v2/src/northbridge/amd/amdk8/amdk8_acpi.h
Modified:
trunk/coreboot-v2/src/arch/i386/boot/Config.lb
trunk/coreboot-v2/src/arch/i386/boot/acpi.c
trunk/coreboot-v2/src/arch/i386/include/arch/acpi.h
trunk/coreboot-v2/src/mainboard/asus/m2v-mx_se/acpi_tables.c
trunk/coreboot-v2/src/northbridge/amd/amdk8/amdk8_acpi.c
Log:
Following patch adds dynamic ACPI AML code generator which can be used to
generate run-time ACPI ASL code.
Moreover it demonstrates its use on Asus M2V-MX SE where the SSDT table is
generated by new function k8acpi_write_vars (technically similar to
update_ssdt). But lot of nicer.
x
Signed-off-by: Rudolf Marek <r.marek(a)assembler.cz>
Acked-by: Peter Stuge <peter(a)stuge.se>
Modified: trunk/coreboot-v2/src/arch/i386/boot/Config.lb
===================================================================
--- trunk/coreboot-v2/src/arch/i386/boot/Config.lb 2009-01-30 02:05:20 UTC (rev 3924)
+++ trunk/coreboot-v2/src/arch/i386/boot/Config.lb 2009-02-01 18:35:15 UTC (rev 3925)
@@ -13,5 +13,5 @@
end
if HAVE_ACPI_TABLES
object acpi.o
+object acpigen.o
end
-
Modified: trunk/coreboot-v2/src/arch/i386/boot/acpi.c
===================================================================
--- trunk/coreboot-v2/src/arch/i386/boot/acpi.c 2009-01-30 02:05:20 UTC (rev 3924)
+++ trunk/coreboot-v2/src/arch/i386/boot/acpi.c 2009-02-01 18:35:15 UTC (rev 3925)
@@ -24,6 +24,7 @@
#include <console/console.h>
#include <string.h>
#include <arch/acpi.h>
+#include <arch/acpigen.h>
#include <device/pci.h>
u8 acpi_checksum(u8 *table, u32 length)
@@ -181,6 +182,34 @@
header->checksum = acpi_checksum((void *)mcfg, header->length);
}
+/* this can be overriden by platform ACPI setup code,
+ if it calls acpi_create_ssdt_generator */
+unsigned long __attribute__((weak)) acpi_fill_ssdt_generator(unsigned long current,
+ char *oem_table_id) {
+ return current;
+}
+
+void acpi_create_ssdt_generator(acpi_header_t *ssdt, char *oem_table_id)
+{
+ unsigned long current=(unsigned long)ssdt+sizeof(acpi_header_t);
+ memset((void *)ssdt, 0, sizeof(acpi_header_t));
+ memcpy(&ssdt->signature, SSDT_NAME, 4);
+ ssdt->revision = 2;
+ memcpy(&ssdt->oem_id, OEM_ID, 6);
+ memcpy(&ssdt->oem_table_id, oem_table_id, 8);
+ ssdt->oem_revision = 42;
+ memcpy(&ssdt->asl_compiler_id, "GENAML", 4);
+ ssdt->asl_compiler_revision = 42;
+ ssdt->length = sizeof(acpi_header_t);
+
+ acpigen_set_current((unsigned char *) current);
+ current = acpi_fill_ssdt_generator(current, oem_table_id);
+
+ /* recalculate length */
+ ssdt->length = current - (unsigned long)ssdt;
+ ssdt->checksum = acpi_checksum((void *)ssdt, ssdt->length);
+}
+
int acpi_create_srat_lapic(acpi_srat_lapic_t *lapic, u8 node, u8 apic)
{
lapic->type=0;
Added: trunk/coreboot-v2/src/arch/i386/boot/acpigen.c
===================================================================
--- trunk/coreboot-v2/src/arch/i386/boot/acpigen.c (rev 0)
+++ trunk/coreboot-v2/src/arch/i386/boot/acpigen.c 2009-02-01 18:35:15 UTC (rev 3925)
@@ -0,0 +1,138 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2009 Rudolf Marek <r.marek(a)assembler.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License v2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* how many nesting we support */
+#define ACPIGEN_LENSTACK_SIZE 10
+
+/* if you need to change this, change the acpigen_write_f and
+ acpigen_patch_len */
+
+#define ACPIGEN_MAXLEN 0xfff
+
+#include <string.h>
+#include <arch/acpigen.h>
+#include <console/console.h>
+
+static char *gencurrent;
+
+char *len_stack[ACPIGEN_LENSTACK_SIZE];
+int ltop = 0;
+
+static int acpigen_write_len_f()
+{
+ ASSERT(ltop < (ACPIGEN_LENSTACK_SIZE - 1))
+ len_stack[ltop++] = gencurrent;
+ acpigen_emit_byte(0);
+ acpigen_emit_byte(0);
+ return 2;
+}
+
+void acpigen_patch_len(int len)
+{
+ ASSERT(len <= ACPIGEN_MAXLEN)
+ ASSERT(ltop > 0)
+ char *p = len_stack[--ltop];
+ /* generate store length for 0xfff max */
+ p[0] = (0x40 | (len & 0xf));
+ p[1] = (len >> 4 & 0xff);
+
+}
+
+void acpigen_set_current(char *curr) {
+ gencurrent = curr;
+}
+
+char *acpigen_get_current(void) {
+ return gencurrent;
+}
+
+int acpigen_emit_byte(unsigned char b)
+{
+ (*gencurrent++) = b;
+ return 1;
+}
+
+int acpigen_write_package(int nr_el)
+{
+ int len;
+ /* package op */
+ acpigen_emit_byte(0x12);
+ len = acpigen_write_len_f();
+ acpigen_emit_byte(nr_el);
+ return len + 2;
+}
+
+int acpigen_write_byte(unsigned int data)
+{
+ /* byte op */
+ acpigen_emit_byte(0xa);
+ acpigen_emit_byte(data & 0xff);
+ return 2;
+}
+
+int acpigen_write_dword(unsigned int data)
+{
+ /* dword op */
+ acpigen_emit_byte(0xc);
+ acpigen_emit_byte(data & 0xff);
+ acpigen_emit_byte((data >> 8) & 0xff);
+ acpigen_emit_byte((data >> 16) & 0xff);
+ acpigen_emit_byte((data >> 24) & 0xff);
+ return 5;
+}
+
+int acpigen_write_name_byte(char *name, uint8_t val) {
+ int len;
+ len = acpigen_write_name(name);
+ len += acpigen_write_byte(val);
+ return len;
+}
+
+int acpigen_write_name_dword(char *name, uint32_t val) {
+ int len;
+ len = acpigen_write_name(name);
+ len += acpigen_write_dword(val);
+ return len;
+}
+
+int acpigen_emit_stream(char *data, int size) {
+ int i;
+ for (i = 0; i < size; i++) {
+ acpigen_emit_byte(data[i]);
+ }
+ return size;
+}
+
+int acpigen_write_name(char *name)
+{
+ int len = strlen(name);
+ /* name op */
+ acpigen_emit_byte(0x8);
+ acpigen_emit_stream(name, len);
+ return len + 1;
+}
+
+int acpigen_write_scope(char *name)
+{
+ int len;
+ /* scope op */
+ acpigen_emit_byte(0x10);
+ len = acpigen_write_len_f();
+ return len + acpigen_emit_stream(name, strlen(name)) + 1;
+}
Modified: trunk/coreboot-v2/src/arch/i386/include/arch/acpi.h
===================================================================
--- trunk/coreboot-v2/src/arch/i386/include/arch/acpi.h 2009-01-30 02:05:20 UTC (rev 3924)
+++ trunk/coreboot-v2/src/arch/i386/include/arch/acpi.h 2009-02-01 18:35:15 UTC (rev 3925)
@@ -29,6 +29,7 @@
#define MCFG_NAME "MCFG"
#define SRAT_NAME "SRAT"
#define SLIT_NAME "SLIT"
+#define SSDT_NAME "SSDT"
#define RSDT_TABLE "RSDT "
#define HPET_TABLE "AMD64 "
@@ -293,6 +294,8 @@
unsigned long acpi_fill_madt(unsigned long current);
unsigned long acpi_fill_mcfg(unsigned long current);
unsigned long acpi_fill_srat(unsigned long current);
+unsigned long acpi_fill_ssdt_generator(unsigned long current, char *oem_table_id);
+void acpi_create_ssdt_generator(acpi_header_t *ssdt, char *oem_table_id);
void acpi_create_fadt(acpi_fadt_t *fadt,acpi_facs_t *facs,void *dsdt);
/* These can be used by the target port */
Added: trunk/coreboot-v2/src/arch/i386/include/arch/acpigen.h
===================================================================
--- trunk/coreboot-v2/src/arch/i386/include/arch/acpigen.h (rev 0)
+++ trunk/coreboot-v2/src/arch/i386/include/arch/acpigen.h 2009-02-01 18:35:15 UTC (rev 3925)
@@ -0,0 +1,37 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2009 Rudolf Marek <r.marek(a)assembler.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License v2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#ifndef LIBACPI_H
+#define LIBACPI_H
+#include <assert.h>
+#include <stdlib.h>
+#include <stdint.h>
+
+void acpigen_patch_len(int len);
+void acpigen_set_current(char *curr);
+char *acpigen_get_current(void);
+int acpigen_write_package(int nr_el);
+int acpigen_write_byte(unsigned int data);
+int acpigen_emit_byte(unsigned char data);
+int acpigen_emit_stream(char *data, int size);
+int acpigen_write_dword(unsigned int data);
+int acpigen_write_name(char *name);
+int acpigen_write_name_dword(char *name, uint32_t val);
+int acpigen_write_name_byte(char *name, uint8_t val);
+int acpigen_write_scope(char *name);
+#endif
Modified: trunk/coreboot-v2/src/mainboard/asus/m2v-mx_se/acpi_tables.c
===================================================================
--- trunk/coreboot-v2/src/mainboard/asus/m2v-mx_se/acpi_tables.c 2009-01-30 02:05:20 UTC (rev 3924)
+++ trunk/coreboot-v2/src/mainboard/asus/m2v-mx_se/acpi_tables.c 2009-02-01 18:35:15 UTC (rev 3925)
@@ -30,9 +30,9 @@
#include <device/pci_ids.h>
#include <../../../southbridge/via/vt8237r/vt8237r.h>
#include <../../../southbridge/via/k8t890/k8t890.h>
+#include <../../../northbridge/amd/amdk8/amdk8_acpi.h>
extern unsigned char AmlCode[];
-extern unsigned char AmlCode_ssdt[];
unsigned long acpi_fill_mcfg(unsigned long current)
{
@@ -81,6 +81,12 @@
return current;
}
+unsigned long acpi_fill_ssdt_generator(unsigned long current, char *oem_table_id) {
+ k8acpi_write_vars();
+ /* put PSTATES generator call here */
+ return (unsigned long) (acpigen_get_current());
+}
+
unsigned long write_acpi_tables(unsigned long start)
{
unsigned long current;
@@ -175,14 +181,11 @@
/* SSDT */
printk_debug("ACPI: * SSDT\n");
ssdt = (acpi_header_t *)current;
- current += ((acpi_header_t *)AmlCode_ssdt)->length;
- memcpy((void *)ssdt, (void *)AmlCode_ssdt, ((acpi_header_t *)AmlCode_ssdt)->length);
- update_ssdt((void*)ssdt);
- /* recalculate checksum */
- ssdt->checksum = 0;
- ssdt->checksum = acpi_checksum((unsigned char *)ssdt,ssdt->length);
- acpi_add_table(rsdt,ssdt);
+ acpi_create_ssdt_generator(ssdt, "DYNADATA");
+ current += ssdt->length;
+ acpi_add_table(rsdt, ssdt);
+
printk_info("ACPI: done.\n");
return current;
}
Modified: trunk/coreboot-v2/src/northbridge/amd/amdk8/amdk8_acpi.c
===================================================================
--- trunk/coreboot-v2/src/northbridge/amd/amdk8/amdk8_acpi.c 2009-01-30 02:05:20 UTC (rev 3924)
+++ trunk/coreboot-v2/src/northbridge/amd/amdk8/amdk8_acpi.c 2009-02-01 18:35:15 UTC (rev 3925)
@@ -226,7 +226,6 @@
p[i*nodes+j] = hops_8[i*nodes+j] * 2 + 10;
#endif
-
}
}
}
@@ -236,6 +235,80 @@
return current;
}
+static int k8acpi_write_HT(void) {
+ device_t dev;
+ uint32_t dword;
+ int len, lenp, i;
+
+ len = acpigen_write_name("HCLK");
+ lenp = acpigen_write_package(HC_POSSIBLE_NUM);
+
+ for(i=0;i<sysconf.hc_possible_num;i++) {
+ lenp += acpigen_write_dword(sysconf.pci1234[i]);
+ }
+ for(i=sysconf.hc_possible_num; i<HC_POSSIBLE_NUM; i++) { // in case we set array size to other than 8
+ lenp += acpigen_write_dword(0x0);
+ }
+
+ acpigen_patch_len(lenp - 1);
+ len += lenp;
+
+ len += acpigen_write_name("HCDN");
+ lenp = acpigen_write_package(HC_POSSIBLE_NUM);
+
+ for(i=0;i<sysconf.hc_possible_num;i++) {
+ lenp += acpigen_write_dword(sysconf.hcdn[i]);
+ }
+ for(i=sysconf.hc_possible_num; i<HC_POSSIBLE_NUM; i++) { // in case we set array size to other than 8
+ lenp += acpigen_write_dword(0x20202020);
+ }
+ acpigen_patch_len(lenp - 1);
+ len += lenp;
+
+ return len;
+}
+
+static int k8acpi_write_pci_data(int dlen, char *name, int offset) {
+ device_t dev;
+ uint32_t dword;
+ int len, lenp, i;
+
+ dev = dev_find_slot(0, PCI_DEVFN(0x18, 1));
+
+ len = acpigen_write_name(name);
+ lenp = acpigen_write_package(dlen);
+ for(i=0; i<dlen; i++) {
+ dword = pci_read_config32(dev, offset+i*4);
+ lenp += acpigen_write_dword(dword);
+ }
+ // minus the opcode
+ acpigen_patch_len(lenp - 1);
+ return len + lenp;
+}
+
+int k8acpi_write_vars(void)
+{
+ int lens;
+ msr_t msr;
+ char pscope[] = "\\._SB_PCI0";
+
+ lens = acpigen_write_scope(pscope);
+ lens += k8acpi_write_pci_data(4, "BUSN", 0xe0);
+ lens += k8acpi_write_pci_data(8, "PCIO", 0xc0);
+ lens += k8acpi_write_pci_data(16, "MMIO", 0x80);
+ lens += acpigen_write_name_byte("SBLK", sysconf.sblk);
+ lens += acpigen_write_name_byte("CBST",
+ ((sysconf.pci1234[0] >> 12) & 0xff) ? 0xf : 0x0);
+ lens += acpigen_write_name_dword("SBDN", sysconf.sbdn);
+ msr = rdmsr(TOP_MEM);
+ lens += acpigen_write_name_dword("TOM1", msr.lo);
+
+ lens += k8acpi_write_HT();
+ //minus opcode
+ acpigen_patch_len(lens - 1);
+ return lens;
+}
+
// moved from mb acpi_tables.c
static void intx_to_stream(u32 val, u32 len, u8 *dest)
{
Added: trunk/coreboot-v2/src/northbridge/amd/amdk8/amdk8_acpi.h
===================================================================
--- trunk/coreboot-v2/src/northbridge/amd/amdk8/amdk8_acpi.h (rev 0)
+++ trunk/coreboot-v2/src/northbridge/amd/amdk8/amdk8_acpi.h 2009-02-01 18:35:15 UTC (rev 3925)
@@ -0,0 +1,25 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2009 Rudolf Marek <r.marek(a)assembler.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License v2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#ifndef AMDK8_ACPI_H
+#define AMDK8_ACPI_H
+#include <arch/acpigen.h>
+
+int k8acpi_write_vars(void);
+
+#endif
