diff options
author | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2015-07-13 09:39:15 +0200 |
---|---|---|
committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2015-07-13 21:04:56 +0200 |
commit | 6cb3a59fd5e754c3627b79db21c5bcc284bfd721 (patch) | |
tree | e83db5b11ee4a29d496dcf2798d024b6b8455ab7 /src/arch/x86/boot/acpigen.c | |
parent | 9693885ad88d21ead7bd9ebc32f3e4901841b18b (diff) | |
download | coreboot-6cb3a59fd5e754c3627b79db21c5bcc284bfd721.tar.xz |
x86: flatten hierarchy
It never made sense to have bootblock_* in init, but
pirq_routing.c in boot, and some ld scripts on the main
level while others live in subdirectories.
This patch flattens the directory hierarchy and makes
x86 more similar to the other architectures.
Change-Id: I4056038fe7813e4d3d3042c441e7ab6076a36384
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/10901
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/arch/x86/boot/acpigen.c')
-rw-r--r-- | src/arch/x86/boot/acpigen.c | 728 |
1 files changed, 0 insertions, 728 deletions
diff --git a/src/arch/x86/boot/acpigen.c b/src/arch/x86/boot/acpigen.c deleted file mode 100644 index 3aa823c363..0000000000 --- a/src/arch/x86/boot/acpigen.c +++ /dev/null @@ -1,728 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2009 Rudolf Marek <r.marek@assembler.cz> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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. - */ - -/* How much nesting do we support? */ -#define ACPIGEN_LENSTACK_SIZE 10 - -/* - * If you need to change this, change acpigen_write_f and - * acpigen_pop_len - */ - -#define ACPIGEN_MAXLEN 0xfff - -#include <string.h> -#include <arch/acpigen.h> -#include <console/console.h> -#include <device/device.h> - -static char *gencurrent; - -char *len_stack[ACPIGEN_LENSTACK_SIZE]; -int ltop = 0; - -void acpigen_write_len_f(void) -{ - ASSERT(ltop < (ACPIGEN_LENSTACK_SIZE - 1)) - len_stack[ltop++] = gencurrent; - acpigen_emit_byte(0); - acpigen_emit_byte(0); -} - -void acpigen_pop_len(void) -{ - int len; - ASSERT(ltop > 0) - char *p = len_stack[--ltop]; - len = gencurrent - p; - ASSERT(len <= ACPIGEN_MAXLEN) - /* 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; -} - -void acpigen_emit_byte(unsigned char b) -{ - (*gencurrent++) = b; -} - -void acpigen_write_package(int nr_el) -{ - /* package op */ - acpigen_emit_byte(0x12); - acpigen_write_len_f(); - acpigen_emit_byte(nr_el); -} - -void acpigen_write_byte(unsigned int data) -{ - /* byte op */ - acpigen_emit_byte(0xa); - acpigen_emit_byte(data & 0xff); -} - -void 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); -} - -void acpigen_write_qword(uint64_t data) -{ - /* qword op */ - acpigen_emit_byte(0xe); - acpigen_emit_byte(data & 0xff); - acpigen_emit_byte((data >> 8) & 0xff); - acpigen_emit_byte((data >> 16) & 0xff); - acpigen_emit_byte((data >> 24) & 0xff); - acpigen_emit_byte((data >> 32) & 0xff); - acpigen_emit_byte((data >> 40) & 0xff); - acpigen_emit_byte((data >> 48) & 0xff); - acpigen_emit_byte((data >> 56) & 0xff); -} - -void acpigen_write_name_byte(const char *name, uint8_t val) -{ - acpigen_write_name(name); - acpigen_write_byte(val); -} - -void acpigen_write_name_dword(const char *name, uint32_t val) -{ - acpigen_write_name(name); - acpigen_write_dword(val); -} - -void acpigen_write_name_qword(const char *name, uint64_t val) -{ - acpigen_write_name(name); - acpigen_write_qword(val); -} - -void acpigen_emit_stream(const char *data, int size) -{ - int i; - for (i = 0; i < size; i++) { - acpigen_emit_byte(data[i]); - } -} - -/* - * The naming conventions for ACPI namespace names are a bit tricky as - * each element has to be 4 chars wide (»All names are a fixed 32 bits.«) - * and »By convention, when an ASL compiler pads a name shorter than 4 - * characters, it is done so with trailing underscores (‘_’).«. - * - * Check sections 5.3, 18.2.2 and 18.4 of ACPI spec 3.0 for details. - */ - -static void acpigen_emit_simple_namestring(const char *name) { - int i; - char ud[] = "____"; - for (i = 0; i < 4; i++) { - if ((name[i] == '\0') || (name[i] == '.')) { - acpigen_emit_stream(ud, 4 - i); - break; - } else { - acpigen_emit_byte(name[i]); - } - } -} - -static void acpigen_emit_double_namestring(const char *name, int dotpos) { - /* mark dual name prefix */ - acpigen_emit_byte(0x2e); - acpigen_emit_simple_namestring(name); - acpigen_emit_simple_namestring(&name[dotpos + 1]); -} - -static void acpigen_emit_multi_namestring(const char *name) { - int count = 0; - unsigned char *pathlen; - /* mark multi name prefix */ - acpigen_emit_byte(0x2f); - acpigen_emit_byte(0x0); - pathlen = ((unsigned char *) acpigen_get_current()) - 1; - - while (name[0] != '\0') { - acpigen_emit_simple_namestring(name); - /* find end or next entity */ - while ((name[0] != '.') && (name[0] != '\0')) - name++; - /* forward to next */ - if (name[0] == '.') - name++; - count++; - } - - pathlen[0] = count; -} - - -void acpigen_emit_namestring(const char *namepath) { - int dotcount = 0, i; - int dotpos = 0; - - /* We can start with a '\'. */ - if (namepath[0] == '\\') { - acpigen_emit_byte('\\'); - namepath++; - } - - /* And there can be any number of '^' */ - while (namepath[0] == '^') { - acpigen_emit_byte('^'); - namepath++; - } - - /* If we have only \\ or only ^...^. Then we need to put a null - name (0x00). */ - if(namepath[0] == '\0') { - acpigen_emit_byte(0x00); - return; - } - - i = 0; - while (namepath[i] != '\0') { - if (namepath[i] == '.') { - dotcount++; - dotpos = i; - } - i++; - } - - if (dotcount == 0) { - acpigen_emit_simple_namestring(namepath); - } else if (dotcount == 1) { - acpigen_emit_double_namestring(namepath, dotpos); - } else { - acpigen_emit_multi_namestring(namepath); - } -} - -void acpigen_write_name(const char *name) -{ - /* name op */ - acpigen_emit_byte(0x8); - acpigen_emit_namestring(name); -} - -void acpigen_write_scope(const char *name) -{ - /* scope op */ - acpigen_emit_byte(0x10); - acpigen_write_len_f(); - acpigen_emit_namestring(name); -} - -void acpigen_write_processor(u8 cpuindex, u32 pblock_addr, u8 pblock_len) -{ -/* - Processor (\_PR.CPUcpuindex, cpuindex, pblock_addr, pblock_len) - { -*/ - char pscope[16]; - /* processor op */ - acpigen_emit_byte(0x5b); - acpigen_emit_byte(0x83); - acpigen_write_len_f(); - - snprintf(pscope, sizeof (pscope), - "\\_PR.CP%02d", (unsigned int) cpuindex); - acpigen_emit_namestring(pscope); - acpigen_emit_byte(cpuindex); - acpigen_emit_byte(pblock_addr & 0xff); - acpigen_emit_byte((pblock_addr >> 8) & 0xff); - acpigen_emit_byte((pblock_addr >> 16) & 0xff); - acpigen_emit_byte((pblock_addr >> 24) & 0xff); - acpigen_emit_byte(pblock_len); -} - -void acpigen_write_empty_PCT(void) -{ -/* - Name (_PCT, Package (0x02) - { - ResourceTemplate () - { - Register (FFixedHW, - 0x00, // Bit Width - 0x00, // Bit Offset - 0x0000000000000000, // Address - ,) - }, - - ResourceTemplate () - { - Register (FFixedHW, - 0x00, // Bit Width - 0x00, // Bit Offset - 0x0000000000000000, // Address - ,) - } - }) -*/ - static char stream[] = { - 0x08, 0x5F, 0x50, 0x43, 0x54, 0x12, 0x2C, /* 00000030 "0._PCT.," */ - 0x02, 0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, /* 00000038 "........" */ - 0x7F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00000040 "........" */ - 0x00, 0x00, 0x00, 0x00, 0x79, 0x00, 0x11, 0x14, /* 00000048 "....y..." */ - 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x7F, 0x00, 0x00, /* 00000050 "........" */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00000058 "........" */ - 0x00, 0x79, 0x00 - }; - acpigen_emit_stream(stream, ARRAY_SIZE(stream)); -} - -void acpigen_write_empty_PTC(void) -{ -/* - Name (_PTC, Package (0x02) - { - ResourceTemplate () - { - Register (FFixedHW, - 0x00, // Bit Width - 0x00, // Bit Offset - 0x0000000000000000, // Address - ,) - }, - - ResourceTemplate () - { - Register (FFixedHW, - 0x00, // Bit Width - 0x00, // Bit Offset - 0x0000000000000000, // Address - ,) - } - }) -*/ - acpi_addr_t addr = { - .space_id = ACPI_ADDRESS_SPACE_FIXED, - .bit_width = 0, - .bit_offset = 0, - { - .resv = 0 - }, - .addrl = 0, - .addrh = 0, - }; - - acpigen_write_name("_PTC"); - acpigen_write_package(2); - - /* ControlRegister */ - acpigen_write_resourcetemplate_header(); - acpigen_write_register(&addr); - acpigen_write_resourcetemplate_footer(); - - /* StatusRegister */ - acpigen_write_resourcetemplate_header(); - acpigen_write_register(&addr); - acpigen_write_resourcetemplate_footer(); - - acpigen_pop_len(); -} - -void acpigen_write_method(const char *name, int nargs) -{ - /* method op */ - acpigen_emit_byte(0x14); - acpigen_write_len_f(); - acpigen_emit_namestring(name); - acpigen_emit_byte(nargs & 7); -} - -void acpigen_write_device(const char *name) -{ - /* method op */ - acpigen_emit_byte(0x5b); - acpigen_emit_byte(0x82); - acpigen_write_len_f(); - acpigen_emit_namestring(name); -} - -/* - * Generates a func with max supported P-states. - */ -void acpigen_write_PPC(u8 nr) -{ -/* - Method (_PPC, 0, NotSerialized) - { - Return (nr) - } -*/ - acpigen_write_method("_PPC", 0); - /* return */ - acpigen_emit_byte(0xa4); - /* arg */ - acpigen_write_byte(nr); - acpigen_pop_len(); -} - -/* - * Generates a func with max supported P-states saved - * in the variable PPCM. - */ -void acpigen_write_PPC_NVS(void) -{ -/* - Method (_PPC, 0, NotSerialized) - { - Return (PPCM) - } -*/ - acpigen_write_method("_PPC", 0); - /* return */ - acpigen_emit_byte(0xa4); - /* arg */ - acpigen_emit_namestring("PPCM"); - acpigen_pop_len(); -} - -void acpigen_write_TPC(const char *gnvs_tpc_limit) -{ -/* - // Sample _TPC method - Method (_TPC, 0, NotSerialized) - { - Return (\TLVL) - } - */ - acpigen_write_method("_TPC", 0); - acpigen_emit_byte(0xa4); /* ReturnOp */ - acpigen_emit_namestring(gnvs_tpc_limit); - acpigen_pop_len(); -} - -void acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat, - u32 busmLat, u32 control, u32 status) -{ - acpigen_write_package(6); - acpigen_write_dword(coreFreq); - acpigen_write_dword(power); - acpigen_write_dword(transLat); - acpigen_write_dword(busmLat); - acpigen_write_dword(control); - acpigen_write_dword(status); - acpigen_pop_len(); - - printk(BIOS_DEBUG, "PSS: %uMHz power %u control 0x%x status 0x%x\n", - coreFreq, power, control, status); -} - -void acpigen_write_PSD_package(u32 domain, u32 numprocs, PSD_coord coordtype) -{ - acpigen_write_name("_PSD"); - acpigen_write_package(1); - acpigen_write_package(5); - acpigen_write_byte(5); // 5 values - acpigen_write_byte(0); // revision 0 - acpigen_write_dword(domain); - acpigen_write_dword(coordtype); - acpigen_write_dword(numprocs); - acpigen_pop_len(); - acpigen_pop_len(); -} - -void acpigen_write_CST_package_entry(acpi_cstate_t *cstate) -{ - acpigen_write_package(4); - acpigen_write_resourcetemplate_header(); - acpigen_write_register(&cstate->resource); - acpigen_write_resourcetemplate_footer(); - acpigen_write_dword(cstate->ctype); - acpigen_write_dword(cstate->latency); - acpigen_write_dword(cstate->power); - acpigen_pop_len(); -} - -void acpigen_write_CST_package(acpi_cstate_t *cstate, int nentries) -{ - int i; - acpigen_write_name("_CST"); - acpigen_write_package(nentries+1); - acpigen_write_dword(nentries); - - for (i = 0; i < nentries; i++) - acpigen_write_CST_package_entry(cstate + i); - - acpigen_pop_len(); -} - -void acpigen_write_TSS_package(int entries, acpi_tstate_t *tstate_list) -{ -/* - Sample _TSS package with 100% and 50% duty cycles - Name (_TSS, Package (0x02) - { - Package(){100, 1000, 0, 0x00, 0) - Package(){50, 520, 0, 0x18, 0) - }) - */ - int i; - acpi_tstate_t *tstate = tstate_list; - - acpigen_write_name("_TSS"); - acpigen_write_package(entries); - - for (i = 0; i < entries; i++) { - acpigen_write_package(5); - acpigen_write_dword(tstate->percent); - acpigen_write_dword(tstate->power); - acpigen_write_dword(tstate->latency); - acpigen_write_dword(tstate->control); - acpigen_write_dword(tstate->status); - acpigen_pop_len(); - tstate++; - } - - acpigen_pop_len(); -} - -void acpigen_write_TSD_package(u32 domain, u32 numprocs, PSD_coord coordtype) -{ - acpigen_write_name("_TSD"); - acpigen_write_package(1); - acpigen_write_package(5); - acpigen_write_byte(5); // 5 values - acpigen_write_byte(0); // revision 0 - acpigen_write_dword(domain); - acpigen_write_dword(coordtype); - acpigen_write_dword(numprocs); - acpigen_pop_len(); - acpigen_pop_len(); -} - - - -void acpigen_write_mem32fixed(int readwrite, u32 base, u32 size) -{ - /* - * acpi 4.0 section 6.4.3.4: 32-Bit Fixed Memory Range Descriptor - * Byte 0: - * Bit7 : 1 => big item - * Bit6-0: 0000110 (0x6) => 32-bit fixed memory - */ - acpigen_emit_byte(0x86); - /* Byte 1+2: length (0x0009) */ - acpigen_emit_byte(0x09); - acpigen_emit_byte(0x00); - /* bit1-7 are ignored */ - acpigen_emit_byte(readwrite ? 0x01 : 0x00); - acpigen_emit_byte(base & 0xff); - acpigen_emit_byte((base >> 8) & 0xff); - acpigen_emit_byte((base >> 16) & 0xff); - acpigen_emit_byte((base >> 24) & 0xff); - acpigen_emit_byte(size & 0xff); - acpigen_emit_byte((size >> 8) & 0xff); - acpigen_emit_byte((size >> 16) & 0xff); - acpigen_emit_byte((size >> 24) & 0xff); -} - -void acpigen_write_register(acpi_addr_t *addr) -{ - 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); -} - -void acpigen_write_irq(u16 mask) -{ - /* - * acpi 3.0b section 6.4.2.1: IRQ Descriptor - * Byte 0: - * Bit7 : 0 => small item - * Bit6-3: 0100 (0x4) => IRQ port descriptor - * Bit2-0: 010 (0x2) => 2 Bytes long - */ - acpigen_emit_byte(0x22); - acpigen_emit_byte(mask & 0xff); - acpigen_emit_byte((mask >> 8) & 0xff); -} - -void acpigen_write_io16(u16 min, u16 max, u8 align, u8 len, u8 decode16) -{ - /* - * acpi 4.0 section 6.4.2.6: I/O Port Descriptor - * Byte 0: - * Bit7 : 0 => small item - * Bit6-3: 1000 (0x8) => I/O port descriptor - * Bit2-0: 111 (0x7) => 7 Bytes long - */ - acpigen_emit_byte(0x47); - /* Does the device decode all 16 or just 10 bits? */ - /* bit1-7 are ignored */ - acpigen_emit_byte(decode16 ? 0x01 : 0x00); - /* minimum base address the device may be configured for */ - acpigen_emit_byte(min & 0xff); - acpigen_emit_byte((min >> 8) & 0xff); - /* maximum base address the device may be configured for */ - acpigen_emit_byte(max & 0xff); - acpigen_emit_byte((max >> 8) & 0xff); - /* alignment for min base */ - acpigen_emit_byte(align & 0xff); - acpigen_emit_byte(len & 0xff); -} - -void acpigen_write_resourcetemplate_header(void) -{ - /* - * A ResourceTemplate() is a Buffer() with a - * (Byte|Word|DWord) containing the length, followed by one or more - * resource items, terminated by the end tag. - * (small item 0xf, len 1) - */ - acpigen_emit_byte(0x11); /* Buffer opcode */ - acpigen_write_len_f(); - acpigen_emit_byte(0x0b); /* Word opcode */ - len_stack[ltop++] = acpigen_get_current(); - acpigen_emit_byte(0x00); - acpigen_emit_byte(0x00); -} - -void acpigen_write_resourcetemplate_footer(void) -{ - char *p = len_stack[--ltop]; - int len; - /* - * end tag (acpi 4.0 Section 6.4.2.8) - * 0x79 <checksum> - * 0x00 is treated as a good checksum according to the spec - * and is what iasl generates. - */ - acpigen_emit_byte(0x79); - acpigen_emit_byte(0x00); - - len = gencurrent - p; - - /* patch len word */ - p[0] = len & 0xff; - p[1] = (len >> 8) & 0xff; - /* patch len field */ - acpigen_pop_len(); -} - -static void acpigen_add_mainboard_rsvd_mem32(void *gp, struct device *dev, - struct resource *res) -{ - acpigen_write_mem32fixed(0, res->base, res->size); -} - -static void acpigen_add_mainboard_rsvd_io(void *gp, struct device *dev, - struct resource *res) -{ - resource_t base = res->base; - resource_t size = res->size; - while (size > 0) { - resource_t sz = size > 255 ? 255 : size; - acpigen_write_io16(base, base, 0, sz, 1); - size -= sz; - base += sz; - } -} - -void acpigen_write_mainboard_resource_template(void) -{ - acpigen_write_resourcetemplate_header(); - - /* Add reserved memory ranges. */ - search_global_resources( - IORESOURCE_MEM | IORESOURCE_RESERVE, - IORESOURCE_MEM | IORESOURCE_RESERVE, - acpigen_add_mainboard_rsvd_mem32, 0); - - /* Add reserved io ranges. */ - search_global_resources( - IORESOURCE_IO | IORESOURCE_RESERVE, - IORESOURCE_IO | IORESOURCE_RESERVE, - acpigen_add_mainboard_rsvd_io, 0); - - acpigen_write_resourcetemplate_footer(); -} - -void acpigen_write_mainboard_resources(const char *scope, const char *name) -{ - acpigen_write_scope(scope); - acpigen_write_name(name); - acpigen_write_mainboard_resource_template(); - acpigen_pop_len(); -} - -static int hex2bin(const char c) -{ - if (c >= 'A' && c <= 'F') - return c - 'A' + 10; - if (c >= 'a' && c <= 'f') - return c - 'a' + 10; - return c - '0'; -} - -void acpigen_emit_eisaid(const char *eisaid) -{ - u32 compact = 0; - - /* Clamping individual values would be better but - there is a disagreement over what is a valid - EISA id, so accept anything and don't clamp, - parent code should create a valid EISAid. - */ - compact |= (eisaid[0] - 'A' + 1) << 26; - compact |= (eisaid[1] - 'A' + 1) << 21; - compact |= (eisaid[2] - 'A' + 1) << 16; - compact |= hex2bin(eisaid[3]) << 12; - compact |= hex2bin(eisaid[4]) << 8; - compact |= hex2bin(eisaid[5]) << 4; - compact |= hex2bin(eisaid[6]); - - acpigen_emit_byte(0xc); - acpigen_emit_byte((compact >> 24) & 0xff); - acpigen_emit_byte((compact >> 16) & 0xff); - acpigen_emit_byte((compact >> 8) & 0xff); - acpigen_emit_byte(compact & 0xff); -} |