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Change in ...coreboot[master]: Documentation: Update soc/intel/apollolake
by Patrick Rudolph (Code Review) 09 Jun '23

09 Jun '23

Patrick Rudolph has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/33740 Change subject: Documentation: Update soc/intel/apollolake ...................................................................... Documentation: Update soc/intel/apollolake Explaing LBPs and how to disable dual partition mode. Change-Id: I0b609f802d96aa90d0c1479ffeccf3aaaa70a85d Signed-off-by: Patrick Rudolph <patrick.rudolph(a)9elements.com> --- M Documentation/soc/intel/apollolake/flash_layout.dia M Documentation/soc/intel/apollolake/flash_layout.svg A Documentation/soc/intel/apollolake/flash_layout2.dia A Documentation/soc/intel/apollolake/flash_layout2.svg M Documentation/soc/intel/apollolake/index.md 5 files changed, 272 insertions(+), 27 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/40/33740/1 diff --git a/Documentation/soc/intel/apollolake/flash_layout.dia b/Documentation/soc/intel/apollolake/flash_layout.dia index 4ea5440..a329620 100644 --- a/Documentation/soc/intel/apollolake/flash_layout.dia +++ b/Documentation/soc/intel/apollolake/flash_layout.dia Binary files differ diff --git a/Documentation/soc/intel/apollolake/flash_layout.svg b/Documentation/soc/intel/apollolake/flash_layout.svg index 9322875..07b3a58 100644 --- a/Documentation/soc/intel/apollolake/flash_layout.svg +++ b/Documentation/soc/intel/apollolake/flash_layout.svg @@ -1,6 +1,6 @@ <?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" "http://www.w3.org/TR/2001/PR-SVG-20010719/DTD/svg10.dtd"> -<svg width="38cm" height="18cm" viewBox="118 98 744 344" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> +<svg width="38cm" height="19cm" viewBox="118 61 744 380" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <g> <rect style="fill: #ffffff" x="620" y="100" width="180" height="60"/> <rect style="fill: none; fill-opacity:0; stroke-width: 3; stroke: #000000" x="620" y="100" width="180" height="60"/> @@ -16,18 +16,18 @@ <tspan x="460" y="134.425">BIOS</tspan> </text> <g> - <rect style="fill: #ffffff" x="240" y="100" width="60" height="60"/> - <rect style="fill: none; fill-opacity:0; stroke-width: 3; stroke: #000000" x="240" y="100" width="60" height="60"/> + <rect style="fill: #ffffff" x="227.633" y="99.4585" width="60" height="60"/> + <rect style="fill: none; fill-opacity:0; stroke-width: 3; stroke: #000000" x="227.633" y="99.4585" width="60" height="60"/> </g> - <text font-size="12.8" style="fill: #000000;text-anchor:middle;font-family:sans-serif;font-style:normal;font-weight:700" x="270" y="134.425"> - <tspan x="270" y="134.425">IFD</tspan> + <text font-size="12.8" style="fill: #000000;text-anchor:middle;font-family:sans-serif;font-style:normal;font-weight:700" x="257.633" y="133.884"> + <tspan x="257.633" y="133.884">IFD</tspan> </text> <g> <rect style="fill: #ffffff" x="200" y="240" width="80" height="60"/> <rect style="fill: none; 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fill-opacity:0; stroke-width: 3; stroke: #000000" x="440.696" y="240.49" width="71.1194" height="60"/> + </g> + <text font-size="12.8" style="fill: #000000;text-anchor:middle;font-family:sans-serif;font-style:normal;font-weight:700" x="606.052" y="274.425"> + <tspan x="606.052" y="274.425">OBB</tspan> + </text> + <text font-size="12.8" style="fill: #000000;text-anchor:middle;font-family:sans-serif;font-style:normal;font-weight:700" x="476.254" y="274.915"> + <tspan x="476.254" y="274.915">IFWI</tspan> + </text> + <text font-size="12.8" style="fill: #000000;text-anchor:start;font-family:sans-serif;font-style:normal;font-weight:normal" x="493.642" y="231.092"> + <tspan x="493.642" y="231.092">Logical Boot Partition 2</tspan> + </text> + <line style="fill: none; fill-opacity:0; stroke-width: 2; stroke-dasharray: 4; stroke: #000000" x1="439.69" y1="207.594" x2="440.696" y2="240.49"/> + <g> + <rect style="fill: #d8e5e5" x="668.7" y="241.9" width="28.5491" height="54.6579"/> + <rect style="fill: none; fill-opacity:0; stroke-width: 3; stroke: #000000" x="668.7" y="241.9" width="28.5491" height="54.6579"/> + </g> +</svg> diff --git a/Documentation/soc/intel/apollolake/index.md b/Documentation/soc/intel/apollolake/index.md index d4a5ee5..3ff0027 100644 --- a/Documentation/soc/intel/apollolake/index.md +++ b/Documentation/soc/intel/apollolake/index.md @@ -1,9 +1,7 @@ # Apollolake -## SPI flash layout -![][apl_flash_layout] - -With Apollolake Intel invented another flash layout for x86 firmware called IFWI (Intel FirmWare Image). +With Apollolake Intel invented another flash layout for x86 firmware called +IFWI (Intel FirmWare Image). Usually on x86 platforms the bootblock is stored at the end of the bios region and the Intel ME / TXE has its own IFD region. On Apollolake both have been @@ -12,6 +10,47 @@ The IFWI region can be manipulated by `ifwitool`. -[apl_flash_layout]: flash_layout.svg +## SPI flash layout +IFD regions: +* The "ME" region isn't used on production boards +* The "BIOS" region contains one or two logical boot partitions (LBP) + * The IFD controls if one or two LBP are active + * Each LBP has it's own IFWI and OBB + * The last 256 KiB of the "BIOS" region are BIOS_UNUSABLE +* The "device extension" region is used by TXE as secure filesystem + +### SPI layout with single LBP + +When configured for single LBP mode, the LBP uses the whole "BIOS" region's +flash size. + +![][apl_flash_layout] + +### SPI layout with dual LBP + +When configured for dual LBP mode, each LBP uses exactly half of the "BIOS" +region's flash size. + +![][apl_flash_layout2] + +### IFWI + +The IFWI contains the bootblock, while the OBB contains the CBFS and other +regions as specified in the FMAP. +The OBB spans the whole size from IFWI till the end of the LBP. + +**Note:** ifwitool doesn't care about LBP2! + +### Logical boot partitions + +Each LBP has their own IFWI and OBB. It allows failsafe firmware updates. + +**Note:** If configured in dual partition mode, the TXE will enter recovery +mode if LBP2 is missing. + +To disable dual partitioning mode, set bit3 in IFD at offset `0x1ff` to 1. + +[apl_flash_layout]: flash_layout.svg +[apl_flash_layout2]: flash_layout2.svg -- To view, visit https://review.coreboot.org/c/coreboot/+/33740 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I0b609f802d96aa90d0c1479ffeccf3aaaa70a85d Gerrit-Change-Number: 33740 Gerrit-PatchSet: 1 Gerrit-Owner: Patrick Rudolph <patrick.rudolph(a)9elements.com> Gerrit-MessageType: newchange

8 36

Change in ...coreboot[master]: util/smctool: A tool for reading Apple SMC keys
by Evgeny Zinoviev (Code Review) 09 Jun '23

09 Jun '23

Evgeny Zinoviev has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/33052 Change subject: util/smctool: A tool for reading Apple SMC keys ...................................................................... util/smctool: A tool for reading Apple SMC keys SMC is an embedded controller on Apple computers. With this tool you can read SMC keys. It supports various data types and can output result in various formats. Example how to get battery capacity level: smctool -k B0FC -t ui16 # returns Full Capacity of Battery 0 smctool -k B0RM -t ui16 # returns Remaining Capacity of Batery 0 So B0RM / B0FC * 100 = battery capacity in percents. Another example, reading current fan speed, which is returned as unsigned fixed point number: sudo ./smctool -k F0Ac -t fpe2 Change-Id: I6161203e52b7f7eaa1205de06e8241d7d40a7481 Signed-off-by: Evgeny Zinoviev <me(a)ch1p.io> --- A util/smctool/Makefile A util/smctool/description.md A util/smctool/smc.c A util/smctool/smc.h A util/smctool/smctool.c 5 files changed, 538 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/52/33052/1 diff --git a/util/smctool/Makefile b/util/smctool/Makefile new file mode 100644 index 0000000..ce7cca2 --- /dev/null +++ b/util/smctool/Makefile @@ -0,0 +1,38 @@ +## +## Makefile for smctool +## +## Copyright (C) 2019 Evgeny Zinoviev <me(a)ch1p.io> +## +## 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. +## + +CC = gcc +CFLAGS = -O2 -Wall -W +PROGRAM = smctool +INSTALL = /usr/bin/env install +PREFIX = /usr/local + +all: $(PROGRAM) + +$(PROGRAM): smc.o smctool.o + $(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS) + +install: $(PROGRAM) + $(INSTALL) $(PROGRAM) $(PREFIX)/sbin + +clean: + rm -f *.o $(PROGRAM) + +distclean: clean + +%.o: %.c + $(CC) $(CFLAGS) -c $^ -I. -o $@ + +.PHONY: all install clean distclean diff --git a/util/smctool/description.md b/util/smctool/description.md new file mode 100644 index 0000000..37a2d2a --- /dev/null +++ b/util/smctool/description.md @@ -0,0 +1 @@ +Reads keys from Apple SMC. Supports various data types. `C` diff --git a/util/smctool/smc.c b/util/smctool/smc.c new file mode 100644 index 0000000..a875b2c --- /dev/null +++ b/util/smctool/smc.c @@ -0,0 +1,156 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Evgeny Zinoviev <me(a)ch1p.io> + * + * SMC interacting code is based on applesmc linux driver by: + * Copyright (C) 2007 Nicolas Boichat <nicolas(a)boichat.ch> + * Copyright (C) 2010 Henrik Rydberg <rydberg(a)euromail.se> + * + * 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. + */ + +#include <stdlib.h> +#include <sys/io.h> +#include <errno.h> +#include <stdio.h> +#include "smc.h" + +/* + * wait_read - Wait for a byte to appear on SMC port. Callers must + * hold applesmc_lock. + */ +int wait_read(void) +{ + uint8_t status; + int us; + for (us = APPLESMC_MIN_WAIT; us < APPLESMC_MAX_WAIT; us <<= 1) { + usleep(us); + status = inb(APPLESMC_CMD_PORT); + + /* read: wait for smc to settle */ + if (status & 0x01) + return 0; + } + + fprintf(stderr, "%s() fail: 0x%02x\n", __func__, status); + return -EIO; +} + +/* + * send_byte - Write to SMC port, retrying when necessary. Callers + * must hold applesmc_lock. + */ +int send_byte(uint8_t cmd, uint16_t port) +{ + uint8_t status; + int us; + + outb(cmd, port); + for (us = APPLESMC_MIN_WAIT; us < APPLESMC_MAX_WAIT; us <<= 1) { + usleep(us); + status = inb(APPLESMC_CMD_PORT); + /* write: wait for smc to settle */ + if (status & 0x02) + continue; + /* ready: cmd accepted, return */ + if (status & 0x04) + return 0; + /* timeout: give up */ + if (us << 1 == APPLESMC_MAX_WAIT) + break; + /* busy: long wait and resend */ + usleep(APPLESMC_RETRY_WAIT); + outb(cmd, port); + } + + fprintf(stderr, "%s(0x%02x, 0x%04x) fail: 0x%02x\n", + __func__, cmd, port, status); + return -EIO; +} + +int send_command(uint8_t cmd) +{ + return send_byte(cmd, APPLESMC_CMD_PORT); +} + +int send_argument(const char *key) +{ + int i; + + for (i = 0; i < 4; i++) + if (send_byte(key[i], APPLESMC_DATA_PORT)) + return -EIO; + return 0; +} + +int read_smc(uint8_t cmd, const char *key, uint8_t *buffer, uint8_t len) +{ + uint8_t status, data = 0; + int i; + + if (send_command(cmd) || send_argument(key)) { + fprintf(stderr, "%.4s: read arg fail\n", key); + return -EIO; + } + + /* This has no effect on newer (2012) SMCs */ + if (send_byte(len, APPLESMC_DATA_PORT)) { + fprintf(stderr, "%.4s: read len fail\n", key); + return -EIO; + } + + for (i = 0; i < len; i++) { + if (wait_read()) { + fprintf(stderr, "%.4s: read data[%d] fail\n", key, i); + return -EIO; + } + buffer[i] = inb(APPLESMC_DATA_PORT); + } + + /* Read the data port until bit0 is cleared */ + for (i = 0; i < 16; i++) { + usleep(APPLESMC_MIN_WAIT); + status = inb(APPLESMC_CMD_PORT); + if (!(status & 0x01)) + break; + data = inb(APPLESMC_DATA_PORT); + } + + if (i) + fprintf(stderr, "flushed %d bytes, last value is: %d\n", + i, data); + + return 0; +} + +int write_smc(uint8_t cmd, const char *key, const uint8_t *buffer, uint8_t len) +{ + int i; + + if (send_command(cmd) || send_argument(key)) { + fprintf(stderr, "%s: write arg fail\n", key); + return -EIO; + } + + if (send_byte(len, APPLESMC_DATA_PORT)) { + fprintf(stderr, "%.4s: write len fail\n", key); + return -EIO; + } + + for (i = 0; i < len; i++) { + if (send_byte(buffer[i], APPLESMC_DATA_PORT)) { + fprintf(stderr, "%s: write data fail\n", key); + return -EIO; + } + } + + return 0; +} diff --git a/util/smctool/smc.h b/util/smctool/smc.h new file mode 100644 index 0000000..dffd8db --- /dev/null +++ b/util/smctool/smc.h @@ -0,0 +1,45 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Evgeny Zinoviev <me(a)ch1p.io> + * + * 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. + */ + +#ifndef SMC_H +#define SMC_H + +#include <stdbool.h> +#include <unistd.h> +#include <stdint.h> + +/* data port used by Apple SMC */ +#define APPLESMC_DATA_PORT 0x300 +/* command/status port used by Apple SMC */ +#define APPLESMC_CMD_PORT 0x304 + +#define APPLESMC_MAX_DATA_LENGTH 32 + +/* wait up to 128 ms for a status change. */ +#define APPLESMC_MIN_WAIT 0x0010 +#define APPLESMC_RETRY_WAIT 0x0100 +#define APPLESMC_MAX_WAIT 0x20000 + +#define APPLESMC_READ_CMD 0x10 +#define APPLESMC_WRITE_CMD 0x11 + +int wait_read(void); +int send_byte(uint8_t cmd, uint16_t port); +int send_command(uint8_t cmd); +int send_argument(const char *key); +int read_smc(uint8_t cmd, const char *key, uint8_t *buffer, uint8_t len); +int write_smc(uint8_t cmd, const char *key, const uint8_t *buffer, uint8_t len); + +#endif /* SMC_H */ diff --git a/util/smctool/smctool.c b/util/smctool/smctool.c new file mode 100644 index 0000000..fda7904 --- /dev/null +++ b/util/smctool/smctool.c @@ -0,0 +1,298 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Evgeny Zinoviev <me(a)ch1p.io> + * + * 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. + */ + +#include <getopt.h> +#include <string.h> +#include <stdlib.h> +#include <assert.h> +#include <endian.h> +#include <sys/io.h> +#include <stdio.h> +#include <errno.h> +#include "smc.h" +#include "smctool.h" + +static bool fp_bits(char c, uint8_t *dest) +{ + if ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f')) { + *dest = strtol(&c, NULL, 16); + return true; + } + return false; +} + +static void print_bits(uint8_t len, uint8_t *ptr) +{ + for (int i = len - 1; i >= 0; i--) { + for (int j = 7; j >= 0; j--) + printf("%u", (ptr[i] >> j) & 1); + + if (i > 0) + printf(" "); + } +} + +static void print_usage(const char *name) +{ + printf("usage: %s <options>\n", name); + printf("\n" + "Options:\n" + " -h, --help: print this help\n" + " -k, --key <name>: key name\n" + " -t, --type <type>: data type, see below\n" + " --output-hex\n" + " --output-bin\n" + "\n" + "Supported data types:\n" + " ui8, ui16, ui32, si8, si16, flag, fpXY, spXY\n" + "\n" + " fp and sp are unsigned and signed fixed point\n" + " data types respectively.\n" + "\n" + " The X in fp and sp data types is integer bits count\n" + " and Y is fraction bits count.\n" + "\n" + " For example,\n" + " fpe2 means 14 integer bits, 2 fraction bits,\n" + " sp78 means 7 integer bits, 8 fraction bits\n" + " (and one sign bit).\n" + "\n"); +} + + +enum output_format {dec, hex, bin}; + +enum smctype {none, ui8, ui16, ui32, si8, si16, flag, fp, sp}; +struct { + enum smctype type; + uint8_t len; + char *str; + char *decfmt; + char *hexfmt; +} types[] = { + {ui8, 1, "ui8", "%u", "0x%02x"}, + {ui16, 2, "ui16", "%u", "0x%04x"}, + {ui32, 4, "ui32", "%u", "0x%08x"}, + {si8, 1, "si8", "%d", "0x%02x"}, + {si16, 2, "si16", "%d", "0x%04x"}, + {flag, 1, "flag", "%u", "0x%01x"}, +}; + +int main(int argc, char *argv[]) +{ + bool show_help = false; + int opt, option_index = 0; + char name[KEYBUFSIZE+1] = {0}; + char typebuf[KEYBUFSIZE+1] = {0}; + uint8_t fp_int_bits = 0, fp_fraction_bits = 0; + + enum output_format of = dec; + char *ofmt = NULL; + char fmtbuf[32]; + + enum smctype type = none; + uint8_t len; + + struct option long_options[] = { + {"help", 0, 0, 'h'}, + {"key", 1, 0, 'k'}, + {"type", 1, 0, 't'}, + {"output-hex", 0, 0, 1000}, + {"output-bin", 0, 0, 1001}, + {0, 0, 0, 0} + }; + + if (argv[1] == NULL) { + print_usage(argv[0]); + exit(0); + } + + while ((opt = getopt_long(argc, argv, "hk:t:", + long_options, &option_index)) != EOF) { + switch (opt) { + case 'h': + show_help = true; + break; + + case 'k': + snprintf(name, KEYBUFSIZE, "%s", optarg); + break; + + case 't': + snprintf(typebuf, KEYBUFSIZE, "%s", optarg); + break; + + case 1000: // output-hex + of = hex; + break; + + case 1001: // output-bin + of = bin; + break; + } + } + + if (optind < argc) { + fprintf(stderr, "Error: Extra parameter found.\n"); + print_usage(argv[0]); + exit(1); + } + + if (show_help) { + print_usage(argv[0]); + exit(0); + } + + /* Validate key name */ + if (strlen(name) != 4) { + fprintf(stderr, "Key name must be 4 characters long.\n"); + exit(1); + } + + /* Validate key type */ + if ((typebuf[0] == 'f' || typebuf[0] == 's') && typebuf[1] == 'p') { + if (!fp_bits(typebuf[2], &fp_int_bits) + || !fp_bits(typebuf[3], &fp_fraction_bits)) { + fprintf(stderr, "Invalid fixed point data type.\n"); + exit(1); + } + if (typebuf[0] == 'f' && fp_int_bits + fp_fraction_bits != 16) { + fprintf(stderr, + "Invalid unsigned fixed point data type.\n"); + exit(1); + } + if (typebuf[0] == 's' && fp_int_bits + fp_fraction_bits != 15) { + fprintf(stderr, + "Invalid signed fixed point data type.\n"); + exit(1); + } + type = typebuf[0] == 'f' ? fp : sp; + len = 2; + ofmt = "%d.%u"; + } + + if (type == none) { + for (unsigned int i = 0; i < ARRAY_SIZE(types); i++) { + if (strcmp(typebuf, types[i].str)) + continue; + + type = types[i].type; + len = types[i].len; + if (of == dec) + ofmt = types[i].decfmt; + else if (of == hex) + ofmt = types[i].hexfmt; + break; + } + } + + if (type == none) { + fprintf(stderr, "Key type \"%s\" is not known.\n", typebuf); + exit(1); + } + + /* Check permissions */ + if (geteuid() != 0) { + fprintf(stderr, "You must be root.\n"); + exit(1); + } + + /* Open SMC port */ + if (ioperm(APPLESMC_DATA_PORT, 0x10, 1)) { + fprintf(stderr, "ioperm: %s\n", strerror(errno)); + exit(1); + } + + /* Read key from SMC */ + int retval; + uint32_t buf = 0; + + retval = read_smc(APPLESMC_READ_CMD, name, (uint8_t *)&buf, len); + assert(retval == 0); + + /* Handle returned value according to the requested type */ + buf = be32toh(buf); + + int32_t fp_int = 0; + uint16_t fp_fraction = 0; + bool fp_sign = false; + + switch (type) { + case flag: + buf = (buf >> 24) & 1; + break; + + case ui8: + buf = (buf >> 24) & 0xff; + break; + + case si8: + buf = (buf >> 24) & 0xff; + if (of == dec) + buf = (int8_t)buf; + break; + + case ui16: + buf = (buf >> 16) & 0xffff; + break; + + case si16: + buf = (buf >> 16) & 0xffff; + if (of == dec) + buf = (int16_t)buf; + break; + + case fp: + buf = (buf >> 16) & 0xffff; + fp_int = buf >> fp_fraction_bits; + fp_fraction = buf & (0xffff >> fp_int_bits); + break; + + case sp: + buf = (buf >> 16) & 0xffff; + fp_sign = ((buf >> 15) & 1) == 1; + + buf &= ~(1 << 15); + + fp_int = buf >> fp_fraction_bits; + fp_fraction = buf & (0xffff >> fp_int_bits); + + if (fp_sign) + fp_int *= -1; + break; + + case ui32: + case none: // to avoid gcc warning + break; + } + + /* Output the result */ + if (of != bin) { + strcpy(fmtbuf, "%s = "); + strcat(fmtbuf, ofmt); + strcat(fmtbuf, "\n"); + + if (type == fp || type == sp) + printf(fmtbuf, name, fp_int, fp_fraction); + else + printf(fmtbuf, name, buf); + } else { + printf("%s = ", name); + print_bits(len, (uint8_t *)&buf); + printf("\n"); + } + + return 0; +} -- To view, visit https://review.coreboot.org/c/coreboot/+/33052 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I6161203e52b7f7eaa1205de06e8241d7d40a7481 Gerrit-Change-Number: 33052 Gerrit-PatchSet: 1 Gerrit-Owner: Evgeny Zinoviev <me(a)ch1p.com> Gerrit-MessageType: newchange

5 7

Change in ...coreboot[master]: drivers/spi: Instrument erase operation
by Paul Menzel (Code Review) 09 Jun '23

09 Jun '23

Paul Menzel has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/31793 Change subject: drivers/spi: Instrument erase operation ...................................................................... drivers/spi: Instrument erase operation Verify console output contains the new string. BS: BS_DEV_INIT times (us): entry 0 run 72771 exit 0 Finalize devices... Devices finalized APIC 00: ** Enter AmdInitLate [00020004] SB800: sb_Late_Post AmdInitLate() returned AGESA_SUCCESS APIC 00: Heap in SystemMem (4) at 0x10000014 APIC 00: ** Exit AmdInitLate [00020004] APIC 00: ** Enter AmdS3Save [0002000b] Manufacturer: ef SF: Detected W25Q32_V with sector size 0x1000, total 0x400000 SF: Successfully erased 4096 bytes @ 0xffff1000 in 97754 usecs Manufacturer: ef SF: Detected W25Q32_V with sector size 0x1000, total 0x400000 SF: Successfully erased 4096 bytes @ 0xffff0000 in 121777 usecs AmdS3Save() returned AGESA_SUCCESS APIC 00: Heap in SystemMem (4) at 0x10000014 APIC 00: ** Exit AmdS3Save [0002000b] BS: BS_POST_DEVICE times (us): entry 0 run 3 exit 228371 Change-Id: I4eb8a850d7263bc3c800d97655f0b37623b78562 Signed-off-by: Paul Menzel <paulepanter(a)users.sourceforge.net> --- M src/drivers/spi/spi_flash.c 1 file changed, 5 insertions(+), 1 deletion(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/93/31793/1 diff --git a/src/drivers/spi/spi_flash.c b/src/drivers/spi/spi_flash.c index d1f5227..7f64968 100644 --- a/src/drivers/spi/spi_flash.c +++ b/src/drivers/spi/spi_flash.c @@ -198,6 +198,9 @@ u32 start, end, erase_size; int ret = -1; u8 cmd[4]; + struct stopwatch sw; + + stopwatch_init(&sw); erase_size = flash->sector_size; if (offset % erase_size || len % erase_size) { @@ -234,7 +237,8 @@ goto out; } - printk(BIOS_DEBUG, "SF: Successfully erased %zu bytes @ %#x\n", len, start); + printk(BIOS_DEBUG, "SF: Successfully erased %zu bytes @ %#x in %ld usecs\n", + len, start, stopwatch_duration_usecs(&sw)); out: return ret; -- To view, visit https://review.coreboot.org/c/coreboot/+/31793 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I4eb8a850d7263bc3c800d97655f0b37623b78562 Gerrit-Change-Number: 31793 Gerrit-PatchSet: 1 Gerrit-Owner: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-MessageType: newchange

4 4

Change in coreboot[master]: soc/intel/{cnl, dnv, icl, skl}: Make top_of_ram align
by Subrata Banik (Code Review) 09 Jun '23

09 Jun '23

Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/35029 ) Change subject: soc/intel/{cnl, dnv, icl, skl}: Make top_of_ram align ...................................................................... soc/intel/{cnl, dnv, icl, skl}: Make top_of_ram align This patch makes top_of_ram aligned in order to meet MTRR alignment requirments. Change-Id: I62d89cb35d8b5082d49c80aea55ac34dbb3b10ff Signed-off-by: Subrata Banik <subrata.banik(a)intel.com> --- M src/soc/intel/cannonlake/romstage/romstage.c M src/soc/intel/denverton_ns/romstage.c M src/soc/intel/icelake/romstage/romstage.c M src/soc/intel/skylake/romstage/romstage_fsp20.c 4 files changed, 27 insertions(+), 15 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/29/35029/1 diff --git a/src/soc/intel/cannonlake/romstage/romstage.c b/src/soc/intel/cannonlake/romstage/romstage.c index 9e2f2f8..d83da7f 100644 --- a/src/soc/intel/cannonlake/romstage/romstage.c +++ b/src/soc/intel/cannonlake/romstage/romstage.c @@ -133,6 +133,7 @@ bool s3wake; struct postcar_frame pcf; uintptr_t top_of_ram; + const size_t top_of_ram_size = 16*MiB; struct chipset_power_state *ps = pmc_get_power_state(); console_init(); @@ -155,12 +156,14 @@ * We need to make sure ramstage will be run cached. At this * point exact location of ramstage in cbmem is not known. * Instruct postcar to cache 16 megs under cbmem top which is - * a safe bet to cover ramstage. + * a safe bet to cover ramstage. This satisfies MTRR alignment + * requirements as well. */ - top_of_ram = (uintptr_t) cbmem_top(); + top_of_ram = ALIGN_DOWN((uintptr_t)cbmem_top(), top_of_ram_size); printk(BIOS_DEBUG, "top_of_ram = 0x%lx\n", top_of_ram); - top_of_ram -= 16*MiB; - postcar_frame_add_mtrr(&pcf, top_of_ram, 16*MiB, MTRR_TYPE_WRBACK); + top_of_ram -= top_of_ram_size; + postcar_frame_add_mtrr(&pcf, top_of_ram, top_of_ram_size, + MTRR_TYPE_WRBACK); /* Cache the ROM as WP just below 4GiB. */ postcar_frame_add_romcache(&pcf, MTRR_TYPE_WRPROT); diff --git a/src/soc/intel/denverton_ns/romstage.c b/src/soc/intel/denverton_ns/romstage.c index af65d38..0d8d4c8 100644 --- a/src/soc/intel/denverton_ns/romstage.c +++ b/src/soc/intel/denverton_ns/romstage.c @@ -142,6 +142,7 @@ struct postcar_frame pcf; uintptr_t top_of_ram; + const size_t top_of_ram_size = 16*MiB; console_init(); @@ -164,10 +165,12 @@ * We need to make sure ramstage will be run cached. At this point exact * location of ramstage in cbmem is not known. Instruct postcar to cache * 16 megs under cbmem top which is a safe bet to cover ramstage. + * This satisfies MTRR alignment requirements as well. */ - top_of_ram = (uintptr_t)cbmem_top(); - postcar_frame_add_mtrr(&pcf, top_of_ram - 16 * MiB, 16 * MiB, - MTRR_TYPE_WRBACK); + top_of_ram = ALIGN_DOWN((uintptr_t)cbmem_top(), top_of_ram_size); + top_of_ram -= top_of_ram_size; + postcar_frame_add_mtrr(&pcf, top_of_ram, top_of_ram_size, + MTRR_TYPE_WRBACK); /* Cache the memory-mapped boot media. */ postcar_frame_add_romcache(&pcf, MTRR_TYPE_WRPROT); diff --git a/src/soc/intel/icelake/romstage/romstage.c b/src/soc/intel/icelake/romstage/romstage.c index 4d0cc17..a083788 100644 --- a/src/soc/intel/icelake/romstage/romstage.c +++ b/src/soc/intel/icelake/romstage/romstage.c @@ -117,6 +117,7 @@ bool s3wake; struct postcar_frame pcf; uintptr_t top_of_ram; + const size_t top_of_ram_size = 16*MiB; struct chipset_power_state *ps = pmc_get_power_state(); console_init(); @@ -139,12 +140,14 @@ * We need to make sure ramstage will be run cached. At this * point exact location of ramstage in cbmem is not known. * Instruct postcar to cache 16 megs under cbmem top which is - * a safe bet to cover ramstage. + * a safe bet to cover ramstage. This satisfies MTRR alignment + * requirements as well. */ - top_of_ram = (uintptr_t) cbmem_top(); + top_of_ram = ALIGN_DOWN((uintptr_t)cbmem_top(), top_of_ram_size); printk(BIOS_DEBUG, "top_of_ram = 0x%lx\n", top_of_ram); - top_of_ram -= 16*MiB; - postcar_frame_add_mtrr(&pcf, top_of_ram, 16*MiB, MTRR_TYPE_WRBACK); + top_of_ram -= top_of_ram_size; + postcar_frame_add_mtrr(&pcf, top_of_ram, top_of_ram_size, + MTRR_TYPE_WRBACK); /* Cache the ROM as WP just below 4GiB. */ postcar_frame_add_romcache(&pcf, MTRR_TYPE_WRPROT); diff --git a/src/soc/intel/skylake/romstage/romstage_fsp20.c b/src/soc/intel/skylake/romstage/romstage_fsp20.c index 1d925b3..0977614 100644 --- a/src/soc/intel/skylake/romstage/romstage_fsp20.c +++ b/src/soc/intel/skylake/romstage/romstage_fsp20.c @@ -145,6 +145,7 @@ bool s3wake; struct postcar_frame pcf; uintptr_t top_of_ram; + const size_t top_of_ram_size = 16*MiB; struct chipset_power_state *ps; console_init(); @@ -166,12 +167,14 @@ * We need to make sure ramstage will be run cached. At this * point exact location of ramstage in cbmem is not known. * Instruct postcar to cache 16 megs under cbmem top which is - * a safe bet to cover ramstage. + * a safe bet to cover ramstage. This satisfies MTRR alignment + * requirements as well. */ - top_of_ram = (uintptr_t) cbmem_top(); + top_of_ram = ALIGN_DOWN((uintptr_t)cbmem_top(), top_of_ram_size); printk(BIOS_DEBUG, "top_of_ram = 0x%lx\n", top_of_ram); - top_of_ram -= 16*MiB; - postcar_frame_add_mtrr(&pcf, top_of_ram, 16*MiB, MTRR_TYPE_WRBACK); + top_of_ram -= top_of_ram_size; + postcar_frame_add_mtrr(&pcf, top_of_ram, top_of_ram_size, + MTRR_TYPE_WRBACK); if (CONFIG(HAVE_SMI_HANDLER)) { /* Cache the TSEG region. */ -- To view, visit https://review.coreboot.org/c/coreboot/+/35029 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I62d89cb35d8b5082d49c80aea55ac34dbb3b10ff Gerrit-Change-Number: 35029 Gerrit-PatchSet: 1 Gerrit-Owner: Subrata Banik <subrata.banik(a)intel.com> Gerrit-MessageType: newchange

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Change in coreboot[master]: mb/google/peppy: Add ALS as ACPI device Some of models of the C720 ca...
by Nicolò (Code Review) 09 Jun '23

09 Jun '23

Nicolò has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/37994 ) Change subject: mb/google/peppy: Add ALS as ACPI device Some of models of the C720 can have an ISL29018 ambient light sensor on the mainboard, probably all the C720P have it. ...................................................................... mb/google/peppy: Add ALS as ACPI device Some of models of the C720 can have an ISL29018 ambient light sensor on the mainboard, probably all the C720P have it. This patch will provide a way for the kernel to access the ALS sensor even after the chromeos_laptop driver broke. Please note that this patch advertise the ALS as an ISL29023, this is due to the fact that the proximity function of the ISL2018 is available only if a properly IR LED is present with the sensor. The C720 doesn't have the IR LED circuit. More work will be required to properly set the _STA to help the kernel driver on probing of the device itself. Tested on 4.15+ Change-Id: I8ed5583afb2f866c1b21eb44f5188526cfb7ebd9 Signed-off-by: Nicolò Veronese <nicveronese(a)gmail.com> --- M src/mainboard/google/slippy/variants/peppy/include/variant/acpi/mainboard.asl 1 file changed, 33 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/94/37994/1 diff --git a/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/mainboard.asl b/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/mainboard.asl index cc3e063..c3dfe5f 100644 --- a/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/mainboard.asl +++ b/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/mainboard.asl @@ -149,4 +149,37 @@ } } } + + Device (ALSD) + { + Name (_HID, "ISL29023") + Name (_DDN, "Renesas ALS") + Name (_UID, 6) + Name (_CRS, ResourceTemplate() + { + I2cSerialBus ( + 0x44, // SlaveAddress + ControllerInitiated, // SlaveMode + 400000, // ConnectionSpeed + AddressingMode7Bit, // AddressingMode + "\\_SB.PCI0.I2C1" // ResourceSource + ) + + // GPIO51 (ball R5) is PIRQT: PIRQL_GSI + PIRQL - PIRQT = PIRQW_GSI + // 27 + 3 - 11 = 35 + Interrupt (ResourceConsumer, Edge, ActiveLow) + { + BOARD_LIGHTSENSOR_IRQ + } + }) + + Method (_STA) + { + If (LEqual (\S2EN, 1)) { + Return (0xF) + } Else { + Return (0x0) + } + } + } } -- To view, visit https://review.coreboot.org/c/coreboot/+/37994 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I8ed5583afb2f866c1b21eb44f5188526cfb7ebd9 Gerrit-Change-Number: 37994 Gerrit-PatchSet: 1 Gerrit-Owner: Nicolò Gerrit-MessageType: newchange

3 4

Change in ...coreboot[master]: sb/intel/ibexpeak: Use SOUTHBRIDGE_INTEL_COMMON_PMCLIB
by Patrick Rudolph (Code Review) 09 Jun '23

09 Jun '23

Patrick Rudolph has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/32316 Change subject: sb/intel/ibexpeak: Use SOUTHBRIDGE_INTEL_COMMON_PMCLIB ...................................................................... sb/intel/ibexpeak: Use SOUTHBRIDGE_INTEL_COMMON_PMCLIB Use common code to detect ACPI S3. Untested. Change-Id: I766a3f4206e6605e6b7bb9a1ff0b2deb6721eb77 Signed-off-by: Patrick Rudolph <patrick.rudolph(a)9elements.com> --- M src/mainboard/lenovo/x201/romstage.c M src/mainboard/packardbell/ms2290/romstage.c M src/southbridge/intel/ibexpeak/Kconfig 3 files changed, 13 insertions(+), 46 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/16/32316/1 diff --git a/src/mainboard/lenovo/x201/romstage.c b/src/mainboard/lenovo/x201/romstage.c index 7e895b4..e65622c 100644 --- a/src/mainboard/lenovo/x201/romstage.c +++ b/src/mainboard/lenovo/x201/romstage.c @@ -34,6 +34,7 @@ #include "dock.h" #include <southbridge/intel/ibexpeak/pch.h> #include <southbridge/intel/common/gpio.h> +#include <southbridge/intel/common/pmclib.h> #include <northbridge/intel/nehalem/nehalem.h> #include <northbridge/intel/nehalem/raminit.h> @@ -206,24 +207,14 @@ /* Halt if there was a built in self test failure */ report_bist_failure(bist); - /* Read PM1_CNT */ - reg32 = inl(DEFAULT_PMBASE + 0x04); - printk(BIOS_DEBUG, "PM1_CNT: %08x\n", reg32); - if (((reg32 >> 10) & 7) == 5) { - u8 reg8; - reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa2); + /* Check for S3 resume. */ + s3resume = southbridge_detect_s3_resume(); + if (s3resume) { + u8 reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa2); printk(BIOS_DEBUG, "a2: %02x\n", reg8); if (!(reg8 & 0x20)) { - outl(reg32 & ~(7 << 10), DEFAULT_PMBASE + 0x04); printk(BIOS_DEBUG, "Bad resume from S3 detected.\n"); - } else { - if (acpi_s3_resume_allowed()) { - printk(BIOS_DEBUG, "Resume from S3 detected.\n"); - s3resume = 1; - } else { - printk(BIOS_DEBUG, - "Resume from S3 detected, but disabled.\n"); - } + s3resume = 0; } } @@ -263,13 +254,5 @@ intel_early_me_status(); - if (s3resume) { - /* Clear SLP_TYPE. This will break stage2 but - * we care for that when we get there. - */ - reg32 = inl(DEFAULT_PMBASE + 0x04); - outl(reg32 & ~(7 << 10), DEFAULT_PMBASE + 0x04); - } - romstage_handoff_init(s3resume); } diff --git a/src/mainboard/packardbell/ms2290/romstage.c b/src/mainboard/packardbell/ms2290/romstage.c index 8442dfa..854c835 100644 --- a/src/mainboard/packardbell/ms2290/romstage.c +++ b/src/mainboard/packardbell/ms2290/romstage.c @@ -34,6 +34,7 @@ #include "arch/early_variables.h" #include <southbridge/intel/ibexpeak/pch.h> #include <northbridge/intel/nehalem/nehalem.h> +#include <southbridge/intel/common/pmclib.h> #include <northbridge/intel/nehalem/raminit.h> #include <southbridge/intel/ibexpeak/me.h> @@ -206,24 +207,14 @@ /* Halt if there was a built in self test failure */ report_bist_failure(bist); - /* Read PM1_CNT */ - reg32 = inl(DEFAULT_PMBASE + 0x04); - printk(BIOS_DEBUG, "PM1_CNT: %08x\n", reg32); - if (((reg32 >> 10) & 7) == 5) { - u8 reg8; - reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa2); + /* Check for S3 resume. */ + s3resume = southbridge_detect_s3_resume(); + if (s3resume) { + u8 reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa2); printk(BIOS_DEBUG, "a2: %02x\n", reg8); if (!(reg8 & 0x20)) { - outl(reg32 & ~(7 << 10), DEFAULT_PMBASE + 0x04); printk(BIOS_DEBUG, "Bad resume from S3 detected.\n"); - } else { - if (acpi_s3_resume_allowed()) { - printk(BIOS_DEBUG, "Resume from S3 detected.\n"); - s3resume = 1; - } else { - printk(BIOS_DEBUG, - "Resume from S3 detected, but disabled.\n"); - } + s3resume = 0; } } @@ -255,13 +246,5 @@ intel_early_me_status(); - if (s3resume) { - /* Clear SLP_TYPE. This will break stage2 but - * we care for that when we get there. - */ - reg32 = inl(DEFAULT_PMBASE + 0x04); - outl(reg32 & ~(7 << 10), DEFAULT_PMBASE + 0x04); - } - romstage_handoff_init(s3resume); } diff --git a/src/southbridge/intel/ibexpeak/Kconfig b/src/southbridge/intel/ibexpeak/Kconfig index bb6e22c..59b012e 100644 --- a/src/southbridge/intel/ibexpeak/Kconfig +++ b/src/southbridge/intel/ibexpeak/Kconfig @@ -32,6 +32,7 @@ select SOUTHBRIDGE_INTEL_COMMON_RCBA_PIRQ select SOUTHBRIDGE_INTEL_COMMON_SMBUS select SOUTHBRIDGE_INTEL_COMMON_SPI + select SOUTHBRIDGE_INTEL_COMMON_PMCLIB select HAVE_USBDEBUG_OPTIONS select COMMON_FADT select ACPI_SATA_GENERATOR -- To view, visit https://review.coreboot.org/c/coreboot/+/32316 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I766a3f4206e6605e6b7bb9a1ff0b2deb6721eb77 Gerrit-Change-Number: 32316 Gerrit-PatchSet: 1 Gerrit-Owner: Patrick Rudolph <patrick.rudolph(a)9elements.com> Gerrit-MessageType: newchange

3 4

Change in coreboot[master]: soc/intel/cannonlake: Speed up postcar loading using intermediate cac...
by Subrata Banik (Code Review) 09 Jun '23

09 Jun '23

Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/34791 ) Change subject: soc/intel/cannonlake: Speed up postcar loading using intermediate caching ...................................................................... soc/intel/cannonlake: Speed up postcar loading using intermediate caching This patch ensures intermediate caching is enabled to speed up loading and decompression of next stage as we are still in romstage and car tear down will be handled by next stage at its entry. TEST=cbmem -t shows ~2-4ms time savings in warm reboot case with this CL. Change-Id: I3ba63887acb5c4bdeaf3e21c24fb0e631362962c Signed-off-by: Subrata Banik <subrata.banik(a)intel.com> --- M src/soc/intel/cannonlake/romstage/romstage.c 1 file changed, 17 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/91/34791/1 diff --git a/src/soc/intel/cannonlake/romstage/romstage.c b/src/soc/intel/cannonlake/romstage/romstage.c index 94b9899..04a9d53 100644 --- a/src/soc/intel/cannonlake/romstage/romstage.c +++ b/src/soc/intel/cannonlake/romstage/romstage.c @@ -127,6 +127,21 @@ printk(BIOS_DEBUG, "%d DIMMs found\n", mem_info->dimm_cnt); } +/* + * Make sure we are enabling intermediate caching to speed up next stage + * (postcar/romstage) loading and decompression as we are still in romstage + * and car tear down will be handled by next stage at its entry. + */ +static void enable_ramstage_caching(uintptr_t base, size_t size) +{ + int mtrr = get_free_var_mtrr(); + + if (mtrr == -1) + return; + + set_var_mtrr(mtrr, base, size, MTRR_TYPE_WRPROT); +} + asmlinkage void car_stage_entry(void) { bool s3wake; @@ -160,6 +175,8 @@ printk(BIOS_DEBUG, "top_of_ram = 0x%lx\n", top_of_ram); top_of_ram -= 16*MiB; postcar_frame_add_mtrr(&pcf, top_of_ram, 16*MiB, MTRR_TYPE_WRBACK); + /* enabling intermediate caching */ + enable_ramstage_caching(top_of_ram, 16*MiB); /* Cache the ROM as WP just below 4GiB. */ postcar_frame_add_romcache(&pcf, MTRR_TYPE_WRPROT); -- To view, visit https://review.coreboot.org/c/coreboot/+/34791 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I3ba63887acb5c4bdeaf3e21c24fb0e631362962c Gerrit-Change-Number: 34791 Gerrit-PatchSet: 1 Gerrit-Owner: Subrata Banik <subrata.banik(a)intel.com> Gerrit-MessageType: newchange

8 66

Change in coreboot[master]: arch/x86: Add postcar_frame_add_ramcache() API
by Subrata Banik (Code Review) 09 Jun '23

09 Jun '23

Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/34805 ) Change subject: arch/x86: Add postcar_frame_add_ramcache() API ...................................................................... arch/x86: Add postcar_frame_add_ramcache() API This patch adds new API for intermediate caching top_of_ram and setting up required MTRR for next stage. Change-Id: Iddafb573afb4799de64754a94816d7f3f2f4982f Signed-off-by: Subrata Banik <subrata.banik(a)intel.com> --- M src/arch/x86/include/arch/cpu.h M src/arch/x86/postcar_loader.c 2 files changed, 30 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/05/34805/1 diff --git a/src/arch/x86/include/arch/cpu.h b/src/arch/x86/include/arch/cpu.h index 293ca02..7dc4049 100644 --- a/src/arch/x86/include/arch/cpu.h +++ b/src/arch/x86/include/arch/cpu.h @@ -329,6 +329,13 @@ void postcar_frame_add_romcache(struct postcar_frame *pcf, int type); /* + * Add variable MTRR covering the Top of RAM with given MTRR type. + */ +void postcar_frame_add_ramcache(struct postcar_frame *pcf, + uintptr_t addr, size_t size, int type); + + +/* * Push used MTRR and Max MTRRs on to the stack * and return pointer to stack top. */ diff --git a/src/arch/x86/postcar_loader.c b/src/arch/x86/postcar_loader.c index 35e139f..8a1f6cb 100644 --- a/src/arch/x86/postcar_loader.c +++ b/src/arch/x86/postcar_loader.c @@ -120,6 +120,29 @@ postcar_frame_add_mtrr(pcf, CACHE_ROM_BASE, CACHE_ROM_SIZE, type); } +/* + * Make sure we are enabling intermediate caching to speed up next stage + * (postcar/romstage) loading and decompression as we are still in romstage + * and CAR tear down will be handled by next stage at its entry. + */ +static void enable_top_of_ram_cache(uintptr_t base, size_t size) +{ + int mtrr = get_free_var_mtrr(); + + if (mtrr == -1) + return; + + set_var_mtrr(mtrr, base, size, MTRR_TYPE_WRPROT); +} + +void postcar_frame_add_ramcache(struct postcar_frame *pcf, + uintptr_t addr, size_t size, int type) +{ + /* enable intermediate caching for Top of RAM */ + enable_top_of_ram_cache(addr, size); + postcar_frame_add_mtrr(pcf, addr, size, type); +} + void *postcar_commit_mtrrs(struct postcar_frame *pcf) { /* -- To view, visit https://review.coreboot.org/c/coreboot/+/34805 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: Iddafb573afb4799de64754a94816d7f3f2f4982f Gerrit-Change-Number: 34805 Gerrit-PatchSet: 1 Gerrit-Owner: Subrata Banik <subrata.banik(a)intel.com> Gerrit-MessageType: newchange

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Change in coreboot[master]: Add a doc describing an ACPI device for controlling platform radios.
by Matthew Garrett (Code Review) 09 Jun '23

09 Jun '23

Matthew Garrett has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/37991 ) Change subject: Add a doc describing an ACPI device for controlling platform radios. ...................................................................... Add a doc describing an ACPI device for controlling platform radios. Signed-off-by: Matthew Garrett <mjg59(a)google.com> Change-Id: I94dc058825cb147aca0d007d68885d4bfbe580a8 --- M Documentation/acpi/index.md A Documentation/acpi/rfkill.md M src/arch/x86/include/arch/acpi.h 3 files changed, 111 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/91/37991/1 diff --git a/Documentation/acpi/index.md b/Documentation/acpi/index.md index 8add8db..d10bca5 100644 --- a/Documentation/acpi/index.md +++ b/Documentation/acpi/index.md @@ -9,3 +9,7 @@ ## devicetree - [Adding devices to a device tree](devicetree.md) + +## Radio device control + +- [Exposing an ACPI device for controlling radios](rfkill.md) diff --git a/Documentation/acpi/rfkill.md b/Documentation/acpi/rfkill.md new file mode 100644 index 0000000..ef54f16 --- /dev/null +++ b/Documentation/acpi/rfkill.md @@ -0,0 +1,106 @@ +# Coreboot platform rfkill control + +## Introduction + +Many devices support platform-level control over integrated radio devices +such as wifi or bluetooth cards. However, the ACPI specification provides +no generic mechanism for operating systems to interact with these platform +interfaces. This has led to a proliferation of vendor-specific control +mechanisms. Coreboot ports to existing platforms tend to mimic those +interfaces and make use of existing drivers, but this doesn't solve the +problem for devices where coreboot is the primary firmware implementation. + +This specification defines an ACPI device that exposes an interface for +controlling any radios defined by the platform. It is intended to allow for +generic OS drivers to be written which will then work on any coreboot +platform that implements this specification. + +## Device specification + +The coreboot rfkill device must be declared with a _HID of "BOOT0001". +It must implement the following ACPI methods: + +### DEVS + +This method provides a list of the supported radios whose state can be +controlledvia this device. It takes no arguments and returns a single +integer. The integer is a bitmask of radio types supported by the device, +defined as follows: + +| Bit | Radio type | +|-----|---------------| +| 0 | Wifi | +| 1 | Bluetooth | +| 2 | Ultra-Wideband| +| 3 | WiMax | +| 4 | WWAN | +| 5 | GPS | +| 6 | FM | +| 7 | NFC | + +### SSTA + +This defines the mutable ("soft") state of all radios in the system. This +method takes no arguments and returns a single integer. The integer is a +bitmask representing radio state using the same values as defined in +DEVS. If a bit is 1 then the radio is enabled. If a bit is 0 then the radio +is not present. If a bit is not set in the value returned by the DEVS method +then the meaning of the bit returned by SSTA is undefined. The state +returned by SSTA can be overridden by the CNTL method. + +### HSTA + +This defines the immutable ("hard") state of all radios in the system. This +method takes no arguments and returns a single integer. The integer is a +bitmask representing radio state using the same values as defined in +DEVS. If a bit is 1 then the radio is enabled. If a bit is 0 then the radio +is disabled. If a bit is not set in the value returned by the DEVS method +then the meaning of the bit returned by HSTA is undefined. The state +returned by HSTA cannot be overridden by the CNTL method. + +### CNTL + +This method takes a single integer as an argument and returns nothing. The +argument is a bitmask representing radio state using the same values as +defined in DEVS. If a bit is 1 then the platform should enable the +corresponding radio. If a bit is 0 then the platform should disable the +corresponding radio. This method only alters the soft radio state, not the +hard radio state. + +### Notifications + +The platform will send a Notify with a value of 0x80 if the state is updated +via any mechanism other than an OS request. The OS should then re-evaluate +the state by calling SSTA and HSTA. + +## Implementation design + +Two types of blocking are defined - "soft" and "hard". Soft state can be +overridden on request by the OS, for example in response to a hotkey +press. Hard state cannot be overridden by the OS, and should correspond to +cases where some external interface has requested that radios be disabled +(for example, a physical switch on the side of the device). Hard and soft +state should be tracked independently - for instance, if a radio is +currently enabled and then disabled via a physical switch being moved, the +state returned by SSTA should still indicate that the radio is enabled while +the state returned by HSTA should indicate that the radio is disabled. If +the OS then requests that the radio be disabled via the CNTL method, SSTA +and HSTA should now both indicate that the radio is disabled. If the +physical switch is now switched back, HSTA should indicate that the radio is +enabled but SSTA should still indicate that the radio is disabled. Only when +the OS requests that the radio be enabled via CNTL should the radio be +re-enabled. + +If the platform alters the radio state (in response to any form of policy +decision or in response to a physical switch), it should update the soft +block state (if the OS can override this decision) or the hard block state +(if the OS cannot override this decision) and then call Notify on the device +with an argument of 0x80. + +If the platform provides more than one radio of a given type, it should +implement an additional rfkill device. Each radio should only be represented +in a single device. + +If an rfkill device should be explicitly tied to a radio device, then the +radio should be exposed in the ACPI device heirarchy and an rfkill device +that controls only that radio implemented as a child of that device. diff --git a/src/arch/x86/include/arch/acpi.h b/src/arch/x86/include/arch/acpi.h index 68475c1..e87df04 100644 --- a/src/arch/x86/include/arch/acpi.h +++ b/src/arch/x86/include/arch/acpi.h @@ -64,6 +64,7 @@ /* List of ACPI HID that use the coreboot ACPI ID */ enum coreboot_acpi_ids { COREBOOT_ACPI_ID_CBTABLE = 0x0000, /* BOOT0000 */ + COREBOOT_ACPI_ID_RFKILL = 0x0001, /* BOOT0001 */ COREBOOT_ACPI_ID_MAX = 0xFFFF, /* BOOTFFFF */ }; -- To view, visit https://review.coreboot.org/c/coreboot/+/37991 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I94dc058825cb147aca0d007d68885d4bfbe580a8 Gerrit-Change-Number: 37991 Gerrit-PatchSet: 1 Gerrit-Owner: Matthew Garrett <mjg59(a)google.com> Gerrit-MessageType: newchange

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Change in coreboot[master]: soc/sifive/fu540: Fix RISCV_ARCH / RISCV_ABI to support float
by Xiang Wang (Code Review) 09 Jun '23

09 Jun '23

Xiang Wang has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/37593 ) Change subject: soc/sifive/fu540: Fix RISCV_ARCH / RISCV_ABI to support float ...................................................................... soc/sifive/fu540: Fix RISCV_ARCH / RISCV_ABI to support float fu540 hart 0 is based on rv64imac, other hart is based on rv64imafdc. coreboot supports low-privileged non-aligned memory access, which requires the compiler to enable floating-point functionality. Compiling the src/arch/riscv/fp_asm.S file before the correction will not generate any instructions. Change-Id: I0f4828046aeb4803d4437c6adad2191684a632f7 Signed-off-by: Xiang Wang <merle(a)hardenedlinux.org> --- M src/soc/sifive/fu540/Kconfig 1 file changed, 2 insertions(+), 2 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/93/37593/1 diff --git a/src/soc/sifive/fu540/Kconfig b/src/soc/sifive/fu540/Kconfig index 97c67bf..4ff2827 100644 --- a/src/soc/sifive/fu540/Kconfig +++ b/src/soc/sifive/fu540/Kconfig @@ -30,11 +30,11 @@ config RISCV_ARCH string - default "rv64imac" + default "rv64imafdc" config RISCV_ABI string - default "lp64" + default "lp64d" config RISCV_CODEMODEL string -- To view, visit https://review.coreboot.org/c/coreboot/+/37593 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I0f4828046aeb4803d4437c6adad2191684a632f7 Gerrit-Change-Number: 37593 Gerrit-PatchSet: 1 Gerrit-Owner: Xiang Wang <merle(a)hardenedlinux.org> Gerrit-MessageType: newchange

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