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u-boot/arch/x86/lib/tables.c

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
// SPDX-License-Identifier: GPL-2.0+
x86: Write configuration tables in last_stage_init() We can write the configuration table in last_stage_init() for all x86 boards, but not with coreboot since coreboot already has them. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-04-24 10:10:04 +00:00
/*
* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
*/
#include <common.h>
dm: core: Create a new header file for 'compat' features At present dm/device.h includes the linux-compatible features. This requires including linux/compat.h which in turn includes a lot of headers. One of these is malloc.h which we thus end up including in every file in U-Boot. Apart from the inefficiency of this, it is problematic for sandbox which needs to use the system malloc() in some files. Move the compatibility features into a separate header file. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-03 14:36:16 +00:00
#include <malloc.h>
x86: Move smbios generation into arch independent directory We will need the SMBIOS generation function on ARM as well going forward, so let's move it into a non arch specific location. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-08-18 23:23:23 +00:00
#include <smbios.h>
x86: Add support for the Simple Firmware Interface (SFI) This provides a way of passing information to Linux without requiring the full ACPI horror. Provide a rudimentary implementation sufficient to be recognised and parsed by Linux. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-04-29 02:25:10 +00:00
#include <asm/sfi.h>
x86: Generate a valid MultiProcessor (MP) table Implement write_mp_table() to create a minimal working MP table. This includes an MP floating table, a configuration table header and all of the 5 base configuration table entries. The I/O interrupt assignment table entry is created based on the same information used in the creation of PIRQ routing table from device tree. A check duplicated entry logic is applied to prevent writing multiple I/O interrupt entries with the same information. Use a Kconfig option GENERATE_MP_TABLE to tell U-Boot whether we need actually write the MP table at the F seg, just like we did for PIRQ routing and SFI tables. With MP table existence, linux kernel will switch to I/O APIC and local APIC to process all the peripheral interrupts instead of 8259 PICs. This takes full advantage of the multicore hardware and the SMP kernel. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-06-23 04:18:52 +00:00
#include <asm/mpspec.h>
x86: Write configuration tables in last_stage_init() We can write the configuration table in last_stage_init() for all x86 boards, but not with coreboot since coreboot already has them. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-04-24 10:10:04 +00:00
#include <asm/tables.h>
x86: Generate a valid ACPI table Implement write_acpi_table() to create a minimal working ACPI table. This includes writing FACS, XSDT, RSDP, FADT, MCFG, MADT, DSDT & SSDT ACPI table entries. Use a Kconfig option GENERATE_ACPI_TABLE to tell U-Boot whether we need actually write the APCI table just like we did for PIRQ routing, MP table and SFI tables. With ACPI table existence, linux kernel gets control of power management, thermal management, configuration management and monitoring in hardware. Signed-off-by: Saket Sinha <saket.sinha89@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tidied up whitespace and aligned some tabs: Signed-off-by: Simon Glass <sjg@chromium.org>
2015-08-22 06:50:55 +00:00
#include <asm/acpi_table.h>
x86: Support booting SeaBIOS SeaBIOS is an open source implementation of a 16-bit x86 BIOS. It can run in an emulator or natively on x86 hardware with the use of coreboot. With SeaBIOS's help, we can boot some OSes that require 16-bit BIOS services like Windows/DOS. As U-Boot, we have to manually create a table where SeaBIOS gets system information (eg: E820) from. The table unfortunately has to follow the coreboot table format as SeaBIOS currently supports booting as a coreboot payload. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-29 07:54:50 +00:00
#include <asm/coreboot_tables.h>
x86: Write configuration tables in last_stage_init() We can write the configuration table in last_stage_init() for all x86 boards, but not with coreboot since coreboot already has them. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-04-24 10:10:04 +00:00
x86: Simplify codes in write_tables() Given all table write routines have the same signature, we can simplify the codes by using a function table. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-28 06:58:01 +00:00
/**
* Function prototype to write a specific configuration table
*
* @addr: start address to write the table
* @return: end address of the table
*/
x86: Use unsigned long for address in table generation We should use unsigned long rather than u32 for addresses. Update this so that the table-generation code builds correctly on 64-bit machines. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-01-16 14:03:35 +00:00
typedef ulong (*table_write)(ulong addr);
x86: Simplify codes in write_tables() Given all table write routines have the same signature, we can simplify the codes by using a function table. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-28 06:58:01 +00:00
static table_write table_write_funcs[] = {
#ifdef CONFIG_GENERATE_PIRQ_TABLE
write_pirq_routing_table,
#endif
#ifdef CONFIG_GENERATE_SFI_TABLE
write_sfi_table,
#endif
#ifdef CONFIG_GENERATE_MP_TABLE
write_mp_table,
#endif
#ifdef CONFIG_GENERATE_ACPI_TABLE
write_acpi_tables,
#endif
#ifdef CONFIG_GENERATE_SMBIOS_TABLE
x86: Use unsigned long for address in table generation We should use unsigned long rather than u32 for addresses. Update this so that the table-generation code builds correctly on 64-bit machines. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-01-16 14:03:35 +00:00
write_smbios_table,
x86: Simplify codes in write_tables() Given all table write routines have the same signature, we can simplify the codes by using a function table. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-28 06:58:01 +00:00
#endif
};
x86: Add MultiProcessor (MP) table APIs The MP table provides a way for the operating system to support for symmetric multiprocessing as well as symmetric I/O interrupt handling with the local APIC and I/O APIC. We provide a bunch of APIs for U-Boot to write the floating table, configuration table header as well as base and extended table entries. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-06-23 04:18:51 +00:00
void table_fill_string(char *dest, const char *src, size_t n, char pad)
{
int start, len;
int i;
strncpy(dest, src, n);
/* Fill the remaining bytes with pad */
len = strlen(src);
start = len < n ? len : n;
for (i = start; i < n; i++)
dest[i] = pad;
}
x86: Write configuration tables in last_stage_init() We can write the configuration table in last_stage_init() for all x86 boards, but not with coreboot since coreboot already has them. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-04-24 10:10:04 +00:00
void write_tables(void)
{
x86: Simplify codes in write_tables() Given all table write routines have the same signature, we can simplify the codes by using a function table. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-28 06:58:01 +00:00
u32 rom_table_start = ROM_TABLE_ADDR;
u32 rom_table_end;
x86: Support booting SeaBIOS SeaBIOS is an open source implementation of a 16-bit x86 BIOS. It can run in an emulator or natively on x86 hardware with the use of coreboot. With SeaBIOS's help, we can boot some OSes that require 16-bit BIOS services like Windows/DOS. As U-Boot, we have to manually create a table where SeaBIOS gets system information (eg: E820) from. The table unfortunately has to follow the coreboot table format as SeaBIOS currently supports booting as a coreboot payload. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-29 07:54:50 +00:00
#ifdef CONFIG_SEABIOS
x86: Support writing configuration tables in high area For those secondary bootloaders like SeaBIOS who want to live in the F segment, which conflicts the configuration table address, now we allow write_tables() to write the configuration tables in high area (malloc'ed memory). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-28 06:58:02 +00:00
u32 high_table, table_size;
x86: Support booting SeaBIOS SeaBIOS is an open source implementation of a 16-bit x86 BIOS. It can run in an emulator or natively on x86 hardware with the use of coreboot. With SeaBIOS's help, we can boot some OSes that require 16-bit BIOS services like Windows/DOS. As U-Boot, we have to manually create a table where SeaBIOS gets system information (eg: E820) from. The table unfortunately has to follow the coreboot table format as SeaBIOS currently supports booting as a coreboot payload. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-29 07:54:50 +00:00
struct memory_area cfg_tables[ARRAY_SIZE(table_write_funcs) + 1];
#endif
x86: Simplify codes in write_tables() Given all table write routines have the same signature, we can simplify the codes by using a function table. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-28 06:58:01 +00:00
int i;
x86: Write configuration tables in last_stage_init() We can write the configuration table in last_stage_init() for all x86 boards, but not with coreboot since coreboot already has them. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-04-24 10:10:04 +00:00
x86: Simplify codes in write_tables() Given all table write routines have the same signature, we can simplify the codes by using a function table. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-28 06:58:01 +00:00
for (i = 0; i < ARRAY_SIZE(table_write_funcs); i++) {
rom_table_end = table_write_funcs[i](rom_table_start);
rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
x86: Support writing configuration tables in high area For those secondary bootloaders like SeaBIOS who want to live in the F segment, which conflicts the configuration table address, now we allow write_tables() to write the configuration tables in high area (malloc'ed memory). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-28 06:58:02 +00:00
x86: Support booting SeaBIOS SeaBIOS is an open source implementation of a 16-bit x86 BIOS. It can run in an emulator or natively on x86 hardware with the use of coreboot. With SeaBIOS's help, we can boot some OSes that require 16-bit BIOS services like Windows/DOS. As U-Boot, we have to manually create a table where SeaBIOS gets system information (eg: E820) from. The table unfortunately has to follow the coreboot table format as SeaBIOS currently supports booting as a coreboot payload. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-29 07:54:50 +00:00
#ifdef CONFIG_SEABIOS
x86: Support writing configuration tables in high area For those secondary bootloaders like SeaBIOS who want to live in the F segment, which conflicts the configuration table address, now we allow write_tables() to write the configuration tables in high area (malloc'ed memory). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-28 06:58:02 +00:00
table_size = rom_table_end - rom_table_start;
x86: Use high_table_malloc() for tables passing to SeaBIOS Now that we already reserved high memory for configuration tables, call high_table_malloc() to allocate tables from the region. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-11 14:45:02 +00:00
high_table = (u32)high_table_malloc(table_size);
x86: Support writing configuration tables in high area For those secondary bootloaders like SeaBIOS who want to live in the F segment, which conflicts the configuration table address, now we allow write_tables() to write the configuration tables in high area (malloc'ed memory). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-28 06:58:02 +00:00
if (high_table) {
table_write_funcs[i](high_table);
x86: Support booting SeaBIOS SeaBIOS is an open source implementation of a 16-bit x86 BIOS. It can run in an emulator or natively on x86 hardware with the use of coreboot. With SeaBIOS's help, we can boot some OSes that require 16-bit BIOS services like Windows/DOS. As U-Boot, we have to manually create a table where SeaBIOS gets system information (eg: E820) from. The table unfortunately has to follow the coreboot table format as SeaBIOS currently supports booting as a coreboot payload. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-29 07:54:50 +00:00
cfg_tables[i].start = high_table;
cfg_tables[i].size = table_size;
x86: Support writing configuration tables in high area For those secondary bootloaders like SeaBIOS who want to live in the F segment, which conflicts the configuration table address, now we allow write_tables() to write the configuration tables in high area (malloc'ed memory). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-28 06:58:02 +00:00
} else {
printf("%d: no memory for configuration tables\n", i);
}
x86: Support booting SeaBIOS SeaBIOS is an open source implementation of a 16-bit x86 BIOS. It can run in an emulator or natively on x86 hardware with the use of coreboot. With SeaBIOS's help, we can boot some OSes that require 16-bit BIOS services like Windows/DOS. As U-Boot, we have to manually create a table where SeaBIOS gets system information (eg: E820) from. The table unfortunately has to follow the coreboot table format as SeaBIOS currently supports booting as a coreboot payload. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-29 07:54:50 +00:00
#endif
x86: Support writing configuration tables in high area For those secondary bootloaders like SeaBIOS who want to live in the F segment, which conflicts the configuration table address, now we allow write_tables() to write the configuration tables in high area (malloc'ed memory). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-28 06:58:02 +00:00
x86: Simplify codes in write_tables() Given all table write routines have the same signature, we can simplify the codes by using a function table. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-28 06:58:01 +00:00
rom_table_start = rom_table_end;
}
x86: Support booting SeaBIOS SeaBIOS is an open source implementation of a 16-bit x86 BIOS. It can run in an emulator or natively on x86 hardware with the use of coreboot. With SeaBIOS's help, we can boot some OSes that require 16-bit BIOS services like Windows/DOS. As U-Boot, we have to manually create a table where SeaBIOS gets system information (eg: E820) from. The table unfortunately has to follow the coreboot table format as SeaBIOS currently supports booting as a coreboot payload. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-29 07:54:50 +00:00
#ifdef CONFIG_SEABIOS
/* make sure the last item is zero */
cfg_tables[i].size = 0;
write_coreboot_table(CB_TABLE_ADDR, cfg_tables);
#endif
x86: Write configuration tables in last_stage_init() We can write the configuration table in last_stage_init() for all x86 boards, but not with coreboot since coreboot already has them. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-04-24 10:10:04 +00:00
}
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