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u-boot/arch/x86/cpu/i386/interrupt.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+
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
/*
x86: Code cleanup Make the copyright notices in the x86 files consistent and update them with proper attributions for recent updates Also fix a few comment style/accuracy and whitespace/blank line issues Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-04-13 09:43:26 +00:00
* (C) Copyright 2008-2011
* Graeme Russ, <graeme.russ@gmail.com>
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
*
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
* (C) Copyright 2002
Convert ISO-8859 files to UTF-8 There was a mix of UTF-8 and ISO-8859 files in the U-Boot source tree, which could cause issues with the patchwork review system. This commit converts all ISO-8859 files to UTF-8. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2011-08-04 16:45:45 +00:00
* Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
*
x86: Add register dump to crash handlers Shamelessly steal the Linux x86 crash handling code and shove it into U-Boot (cool - it fits). Be sure to include suitable attribution to Linus Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-04-23 14:05:38 +00:00
* Portions of this file are derived from the Linux kernel source
* Copyright (C) 1991, 1992 Linus Torvalds
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
*/
#include <common.h>
dm: x86: Set up interrupt routing from interrupt_init() At present interrupt routing is set up from arch_misc_init(). We can do it a little later instead, in interrupt_init(). This removes the manual pirq_init() call. Where the platform does not have an interrupt router defined in its device tree, no error is generated. Some platforms do not have this. Drop pirq_init() since it is no-longer used. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-20 04:32:26 +00:00
#include <dm.h>
x86: show UEFI images involved in crash If a crash occurs, show the loaded UEFI images to facilitate analysis. This is an example output: => bootefi 0x1000000 Found 0 disks Hello world of bugs! Invalid Opcode (Undefined Opcode) EIP: 0010:[<06ceb06e>] EFLAGS: 00010206 Original EIP :[<fec9906e>] EAX: 00000000 EBX: 06cec000 ECX: 00000fd0 EDX: 00000001 ESI: 06ced18a EDI: 07d0fe10 EBP: 07fe27a0 ESP: 07d0fde0 DS: 0018 ES: 0018 FS: 0020 GS: 0018 SS: 0018 CR0: 00000033 CR2: 00000000 CR3: 00000000 CR4: 00000000 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff0ff0 DR7: 00000400 Stack: 0x07d0fde8 : 0x00000000 0x07d0fde4 : 0x06ced040 --->0x07d0fde0 : 0x07fe27a0 0x07d0fddc : 0x00010206 0x07d0fdd8 : 0x00000010 0x07d0fdd4 : 0x06ceb06e UEFI image [0x06cea000:0x06cf0fff] pc=0x106e '/bug-i386.efi' ### ERROR ### Please RESET the board ### With the additional information provided by this patch we know that the problem occurred 0x106e after the load address of bug-i386.efi. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-25 17:55:12 +00:00
#include <efi_loader.h>
common: Move hang() to the same header as panic() At present panic() is in the vsprintf.h header file. That does not seem like an obvious choice for hang(), even though it relates to panic(). So let's put hang() in its own header. Signed-off-by: Simon Glass <sjg@chromium.org> [trini: Migrate a few more files] Signed-off-by: Tom Rini <trini@konsulko.com>
2019-12-28 17:45:07 +00:00
#include <hang.h>
common: Move ll_boot_init() to init.h This is an init-related function so belongs in that file. Move it. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-12-28 17:44:56 +00:00
#include <init.h>
x86: Give each driver an IRQ type Add an IRQ type to each driver and use irq_first_device_type() to find and probe the correct one. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-06 16:54:58 +00:00
#include <irq.h>
common: Move interrupt functions into a new header These functions do not use driver model but are fairly widely used in U-Boot. But it is not clear that they will use driver model anytime soon, so we don't want to label them as 'legacy'. Move them to a new irq_func.h header file. Avoid the name 'irq.h' since it is widely used in U-Boot already. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-11-14 19:57:41 +00:00
#include <irq_func.h>
x86: Add basic cache operations Add functions to enable/disable the data cache. Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-02 04:49:50 +00:00
#include <asm/control_regs.h>
x86: Call lapic_setup() in interrupt_init() Let's configure LAPIC in a common place - interrupt_init(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-22 08:45:33 +00:00
#include <asm/i8259.h>
Moved definition of set_vector() to new header file This allows for future tidy ups and functionality that will require set_vector () Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2008-12-06 23:29:01 +00:00
#include <asm/interrupt.h>
x86: Add stack dump to register dump
2011-02-12 04:11:28 +00:00
#include <asm/io.h>
x86: Call lapic_setup() in interrupt_init() Let's configure LAPIC in a common place - interrupt_init(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-22 08:45:33 +00:00
#include <asm/lapic.h>
#include <asm/processor-flags.h>
common: Drop asm/ptrace.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-10 17:40:06 +00:00
#include <asm/ptrace.h>
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
x86: Declare global_data pointer when it is used Several files use the global_data pointer without declaring it. This works because the declaration is currently a NOP. But still it is better to fix this so that x86 lines up with other archs. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-04-17 16:13:33 +00:00
DECLARE_GLOBAL_DATA_PTR;
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
#define DECLARE_INTERRUPT(x) \
".globl irq_"#x"\n" \
i386: Remove inline asm symbols from .dynsym Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:19 +00:00
".hidden irq_"#x"\n" \
".type irq_"#x", @function\n" \
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
"irq_"#x":\n" \
"pushl $"#x"\n" \
x86: Force 32-bit jumps in interrupt handlers Depending upon the compiler used, IRQ entries could vary in sizes. With GCC 5.x, the code generator will use short jumps for some IRQ entries but near jumps for others. For example, GCC 5.4.0 generates the following: $ objdump -d interrupt.o <snip> 00000207 <irq_18>: 207: 6a 12 push $0x12 209: eb 85 jmp 190 <irq_common_entry> 0000020b <irq_19>: 20b: 6a 13 push $0x13 20d: eb 81 jmp 190 <irq_common_entry> 0000020f <irq_20>: 20f: 6a 14 push $0x14 211: e9 7a ff ff ff jmp 190 <irq_common_entry> 00000216 <irq_21>: 216: 6a 15 push $0x15 218: e9 73 ff ff ff jmp 190 <irq_common_entry> This causes a problem in cpu_init_interrupts(), because the IDT setup assumed same sizes for all IRQ entries. GCC 4.x always generated 32-bit jumps, so this previously was not a problem. The fix is to force 32-bit near jumps for all entries within the inline assembly. This works for GCC 5.x, and 4.x was already using that form of jumping. Signed-off-by: Jason Tang <tang@jtang.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-02-10 02:54:13 +00:00
"jmp.d32 irq_common_entry\n"
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
x86: Simplify architecture defined exception handling in irq_llsr() Instead of using switch..case for architecture defined exceptions, simply unify the handling by printing a message of exception name, followed by registers dump then halt the CPU. With this unification, it also fixes the wrong exception numbers for #MF/#AC/#MC/#XM which should be 16/17/18/19 not 15/16/17/18. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-07-10 02:51:23 +00:00
static char *exceptions[] = {
"Divide Error",
"Debug",
"NMI Interrupt",
"Breakpoint",
"Overflow",
"BOUND Range Exceeded",
"Invalid Opcode (Undefined Opcode)",
Fix spelling of available. Signed-off-by: Vagrant Cascadian <vagrant@debian.org>
2019-05-03 22:28:37 +00:00
"Device Not Available (No Math Coprocessor)",
x86: Simplify architecture defined exception handling in irq_llsr() Instead of using switch..case for architecture defined exceptions, simply unify the handling by printing a message of exception name, followed by registers dump then halt the CPU. With this unification, it also fixes the wrong exception numbers for #MF/#AC/#MC/#XM which should be 16/17/18/19 not 15/16/17/18. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-07-10 02:51:23 +00:00
"Double Fault",
"Coprocessor Segment Overrun",
"Invalid TSS",
"Segment Not Present",
"Stack Segment Fault",
x86: Tidy up a few minor issues with interrupts Fix a typo, remove an unused field and make sure to use existing #define constants instead of open-coded values. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-07-31 15:31:32 +00:00
"General Protection",
x86: Simplify architecture defined exception handling in irq_llsr() Instead of using switch..case for architecture defined exceptions, simply unify the handling by printing a message of exception name, followed by registers dump then halt the CPU. With this unification, it also fixes the wrong exception numbers for #MF/#AC/#MC/#XM which should be 16/17/18/19 not 15/16/17/18. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-07-10 02:51:23 +00:00
"Page Fault",
"Reserved",
"x87 FPU Floating-Point Error",
"Alignment Check",
"Machine Check",
"SIMD Floating-Point Exception",
"Virtualization Exception",
"Reserved",
"Reserved",
"Reserved",
"Reserved",
"Reserved",
"Reserved",
"Reserved",
"Reserved",
"Reserved",
"Reserved",
"Reserved"
};
x86: show UEFI images involved in crash If a crash occurs, show the loaded UEFI images to facilitate analysis. This is an example output: => bootefi 0x1000000 Found 0 disks Hello world of bugs! Invalid Opcode (Undefined Opcode) EIP: 0010:[<06ceb06e>] EFLAGS: 00010206 Original EIP :[<fec9906e>] EAX: 00000000 EBX: 06cec000 ECX: 00000fd0 EDX: 00000001 ESI: 06ced18a EDI: 07d0fe10 EBP: 07fe27a0 ESP: 07d0fde0 DS: 0018 ES: 0018 FS: 0020 GS: 0018 SS: 0018 CR0: 00000033 CR2: 00000000 CR3: 00000000 CR4: 00000000 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff0ff0 DR7: 00000400 Stack: 0x07d0fde8 : 0x00000000 0x07d0fde4 : 0x06ced040 --->0x07d0fde0 : 0x07fe27a0 0x07d0fddc : 0x00010206 0x07d0fdd8 : 0x00000010 0x07d0fdd4 : 0x06ceb06e UEFI image [0x06cea000:0x06cf0fff] pc=0x106e '/bug-i386.efi' ### ERROR ### Please RESET the board ### With the additional information provided by this patch we know that the problem occurred 0x106e after the load address of bug-i386.efi. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-25 17:55:12 +00:00
/**
* show_efi_loaded_images() - show loaded UEFI images
*
* List all loaded UEFI images.
*
* @eip: instruction pointer
*/
static void show_efi_loaded_images(uintptr_t eip)
{
efi_print_image_infos((void *)eip);
}
x86: Fix up some missing prototypes Some functions are missing prototypes. Fix those that are specific to x86. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2014-11-06 20:20:08 +00:00
static void dump_regs(struct irq_regs *regs)
x86: Add register dump to crash handlers Shamelessly steal the Linux x86 crash handling code and shove it into U-Boot (cool - it fits). Be sure to include suitable attribution to Linus Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-04-23 14:05:38 +00:00
{
x86: Display correct CS/EIP/EFLAGS when there is an error code Some exceptions cause an error code to be saved on the current stack after the EIP value. We should extract CS/EIP/EFLAGS from different position on the stack based on the exception number. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-07-10 02:38:32 +00:00
unsigned long cs, eip, eflags;
x86: Add register dump to crash handlers Shamelessly steal the Linux x86 crash handling code and shove it into U-Boot (cool - it fits). Be sure to include suitable attribution to Linus Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-04-23 14:05:38 +00:00
unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L;
unsigned long d0, d1, d2, d3, d6, d7;
x86: Add stack dump to register dump
2011-02-12 04:11:28 +00:00
unsigned long sp;
x86: Add register dump to crash handlers Shamelessly steal the Linux x86 crash handling code and shove it into U-Boot (cool - it fits). Be sure to include suitable attribution to Linus Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-04-23 14:05:38 +00:00
x86: Display correct CS/EIP/EFLAGS when there is an error code Some exceptions cause an error code to be saved on the current stack after the EIP value. We should extract CS/EIP/EFLAGS from different position on the stack based on the exception number. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-07-10 02:38:32 +00:00
/*
* Some exceptions cause an error code to be saved on the current stack
* after the EIP value. We should extract CS/EIP/EFLAGS from different
* position on the stack based on the exception number.
*/
switch (regs->irq_id) {
case EXC_DF:
case EXC_TS:
case EXC_NP:
case EXC_SS:
case EXC_GP:
case EXC_PF:
case EXC_AC:
cs = regs->context.ctx2.xcs;
eip = regs->context.ctx2.eip;
eflags = regs->context.ctx2.eflags;
/* We should fix up the ESP due to error code */
regs->esp += 4;
break;
default:
cs = regs->context.ctx1.xcs;
eip = regs->context.ctx1.eip;
eflags = regs->context.ctx1.eflags;
break;
}
x86: Add register dump to crash handlers Shamelessly steal the Linux x86 crash handling code and shove it into U-Boot (cool - it fits). Be sure to include suitable attribution to Linus Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-04-23 14:05:38 +00:00
printf("EIP: %04x:[<%08lx>] EFLAGS: %08lx\n",
x86: Display correct CS/EIP/EFLAGS when there is an error code Some exceptions cause an error code to be saved on the current stack after the EIP value. We should extract CS/EIP/EFLAGS from different position on the stack based on the exception number. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-07-10 02:38:32 +00:00
(u16)cs, eip, eflags);
x86: Show the un-relocated IP address in exceptions When trying to figure out where an exception has occured, the relocated address is not a lot of help. Its value depends on various factors. Show the un-relocated IP as well. This can be looked up in System.map directly. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-08-11 04:02:54 +00:00
if (gd->flags & GD_FLG_RELOC)
printf("Original EIP :[<%08lx>]\n", eip - gd->reloc_off);
x86: Add register dump to crash handlers Shamelessly steal the Linux x86 crash handling code and shove it into U-Boot (cool - it fits). Be sure to include suitable attribution to Linus Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-04-23 14:05:38 +00:00
printf("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
regs->eax, regs->ebx, regs->ecx, regs->edx);
printf("ESI: %08lx EDI: %08lx EBP: %08lx ESP: %08lx\n",
regs->esi, regs->edi, regs->ebp, regs->esp);
printf(" DS: %04x ES: %04x FS: %04x GS: %04x SS: %04x\n",
cosmetic: checkpatch cleanup of arch/x86/cpu/*.c Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-08 02:33:13 +00:00
(u16)regs->xds, (u16)regs->xes, (u16)regs->xfs,
(u16)regs->xgs, (u16)regs->xss);
x86: Add register dump to crash handlers Shamelessly steal the Linux x86 crash handling code and shove it into U-Boot (cool - it fits). Be sure to include suitable attribution to Linus Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-04-23 14:05:38 +00:00
cr0 = read_cr0();
cr2 = read_cr2();
cr3 = read_cr3();
cr4 = read_cr4();
printf("CR0: %08lx CR2: %08lx CR3: %08lx CR4: %08lx\n",
cr0, cr2, cr3, cr4);
d0 = get_debugreg(0);
d1 = get_debugreg(1);
d2 = get_debugreg(2);
d3 = get_debugreg(3);
printf("DR0: %08lx DR1: %08lx DR2: %08lx DR3: %08lx\n",
d0, d1, d2, d3);
d6 = get_debugreg(6);
d7 = get_debugreg(7);
printf("DR6: %08lx DR7: %08lx\n",
d6, d7);
x86: Add stack dump to register dump
2011-02-12 04:11:28 +00:00
printf("Stack:\n");
sp = regs->esp;
sp += 64;
while (sp > (regs->esp - 16)) {
if (sp == regs->esp)
printf("--->");
else
printf(" ");
printf("0x%8.8lx : 0x%8.8lx\n", sp, (ulong)readl(sp));
sp -= 4;
}
x86: show UEFI images involved in crash If a crash occurs, show the loaded UEFI images to facilitate analysis. This is an example output: => bootefi 0x1000000 Found 0 disks Hello world of bugs! Invalid Opcode (Undefined Opcode) EIP: 0010:[<06ceb06e>] EFLAGS: 00010206 Original EIP :[<fec9906e>] EAX: 00000000 EBX: 06cec000 ECX: 00000fd0 EDX: 00000001 ESI: 06ced18a EDI: 07d0fe10 EBP: 07fe27a0 ESP: 07d0fde0 DS: 0018 ES: 0018 FS: 0020 GS: 0018 SS: 0018 CR0: 00000033 CR2: 00000000 CR3: 00000000 CR4: 00000000 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff0ff0 DR7: 00000400 Stack: 0x07d0fde8 : 0x00000000 0x07d0fde4 : 0x06ced040 --->0x07d0fde0 : 0x07fe27a0 0x07d0fddc : 0x00010206 0x07d0fdd8 : 0x00000010 0x07d0fdd4 : 0x06ceb06e UEFI image [0x06cea000:0x06cf0fff] pc=0x106e '/bug-i386.efi' ### ERROR ### Please RESET the board ### With the additional information provided by this patch we know that the problem occurred 0x106e after the load address of bug-i386.efi. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-25 17:55:12 +00:00
show_efi_loaded_images(eip);
x86: Add register dump to crash handlers Shamelessly steal the Linux x86 crash handling code and shove it into U-Boot (cool - it fits). Be sure to include suitable attribution to Linus Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-04-23 14:05:38 +00:00
}
x86: Simplify architecture defined exception handling in irq_llsr() Instead of using switch..case for architecture defined exceptions, simply unify the handling by printing a message of exception name, followed by registers dump then halt the CPU. With this unification, it also fixes the wrong exception numbers for #MF/#AC/#MC/#XM which should be 16/17/18/19 not 15/16/17/18. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-07-10 02:51:23 +00:00
static void do_exception(struct irq_regs *regs)
{
printf("%s\n", exceptions[regs->irq_id]);
dump_regs(regs);
hang();
}
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
struct idt_entry {
u16 base_low;
u16 selector;
u8 res;
u8 access;
u16 base_high;
cosmetic: checkpatch cleanup of arch/x86/cpu/*.c Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-08 02:33:13 +00:00
} __packed;
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
struct desc_ptr {
unsigned short size;
unsigned long address;
cosmetic: checkpatch cleanup of arch/x86/cpu/*.c Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-08 02:33:13 +00:00
} __packed;
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
x86: Tweak IDT and GDT for alignment and readability -- Changes for v2: - Renamed to better reflect nature of changes
2011-12-19 03:26:18 +00:00
struct idt_entry idt[256] __aligned(16);
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
struct desc_ptr idt_ptr;
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
static inline void load_idt(const struct desc_ptr *dtr)
{
cosmetic: checkpatch cleanup of arch/x86/cpu/*.c Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-08 02:33:13 +00:00
asm volatile("cs lidt %0" : : "m" (*dtr));
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
}
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
Rewrite i386 interrupt handling Rewrite interrupt handling functionality for the i386 port. Separated functionality into separate CPU and Architecture components. It appears as if the i386 interrupt handler functionality was intended to allow multiple handlers to be installed for a given interrupt. Unfortunately, this functionality was not fully implemented and also had the problem that irq_free_handler() does not allow the passing of the handler function pointer and therefore could never be used to free specific handlers that had been installed for a given IRQ. There were also various issues with array bounds not being fully tested. I had two objectives in mind for the new implementation: 1) Keep the implementation as similar as possible to existing implementations. To that end, I have used the leon2/3 implementations as the reference 2) Seperate CPU and Architecture specific elements. All specific i386 interrupt functionality is now in cpu/i386/ with the high level API and architecture specific code in lib_i386. Functionality specific to the PC/AT architecture (i.e. cascaded i8259 PICs) has been further split out into an individual file to allow for the implementation of the PIC architecture of the SC520 CPU (supports more IRQs) Signed-off-by: Graeme Russ <graeme.russ at gmail.com>
2009-02-24 10:13:40 +00:00
void set_vector(u8 intnum, void *routine)
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
{
x86: Correct address casts in interrupt code We should cast an address to unsigned long, not u32. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-09-26 03:33:25 +00:00
idt[intnum].base_high = (u16)((ulong)(routine) >> 16);
idt[intnum].base_low = (u16)((ulong)(routine) & 0xffff);
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
}
cosmetic: checkpatch cleanup of arch/x86/cpu/*.c Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-08 02:33:13 +00:00
/*
* Ideally these would be defined static to avoid a checkpatch warning, but
* the compiler cannot see them in the inline asm and complains that they
* aren't defined
*/
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
void irq_0(void);
void irq_1(void);
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
Rewrite i386 interrupt handling Rewrite interrupt handling functionality for the i386 port. Separated functionality into separate CPU and Architecture components. It appears as if the i386 interrupt handler functionality was intended to allow multiple handlers to be installed for a given interrupt. Unfortunately, this functionality was not fully implemented and also had the problem that irq_free_handler() does not allow the passing of the handler function pointer and therefore could never be used to free specific handlers that had been installed for a given IRQ. There were also various issues with array bounds not being fully tested. I had two objectives in mind for the new implementation: 1) Keep the implementation as similar as possible to existing implementations. To that end, I have used the leon2/3 implementations as the reference 2) Seperate CPU and Architecture specific elements. All specific i386 interrupt functionality is now in cpu/i386/ with the high level API and architecture specific code in lib_i386. Functionality specific to the PC/AT architecture (i.e. cascaded i8259 PICs) has been further split out into an individual file to allow for the implementation of the PIC architecture of the SC520 CPU (supports more IRQs) Signed-off-by: Graeme Russ <graeme.russ at gmail.com>
2009-02-24 10:13:40 +00:00
int cpu_init_interrupts(void)
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
{
int i;
* Code cleanup: - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
int irq_entry_size = irq_1 - irq_0;
void *irq_entry = (void *)irq_0;
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
/* Setup the IDT */
cosmetic: checkpatch cleanup of arch/x86/cpu/*.c Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-08 02:33:13 +00:00
for (i = 0; i < 256; i++) {
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
idt[i].access = 0x8e;
* Code cleanup: - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
idt[i].res = 0;
x86: Tidy up a few minor issues with interrupts Fix a typo, remove an unused field and make sure to use existing #define constants instead of open-coded values. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-07-31 15:31:32 +00:00
idt[i].selector = X86_GDT_ENTRY_32BIT_CS * X86_GDT_ENTRY_SIZE;
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
set_vector(i, irq_entry);
irq_entry += irq_entry_size;
* Code cleanup: - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
}
x86: Tidy up a few minor issues with interrupts Fix a typo, remove an unused field and make sure to use existing #define constants instead of open-coded values. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-07-31 15:31:32 +00:00
idt_ptr.size = 256 * 8 - 1;
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
idt_ptr.address = (unsigned long) idt;
load_idt(&idt_ptr);
* Code cleanup: - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
return 0;
}
x86: Provide access to the IDT Add a function to return the address of the Interrupt Descriptor Table. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-04-29 02:25:16 +00:00
void *x86_get_idt(void)
{
return &idt_ptr;
}
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
void __do_irq(int irq)
{
printf("Unhandled IRQ : %d\n", irq);
}
void do_irq(int irq) __attribute__((weak, alias("__do_irq")));
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
void enable_interrupts(void)
{
asm("sti\n");
}
int disable_interrupts(void)
{
long flags;
* Code cleanup: - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
x86: Fix up CONFIG_X86_64 check When SPL and U-Boot proper have different settings for this flag, we need to use the correct one. Fix this up in the interrupt code. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-01-16 14:04:00 +00:00
#if CONFIG_IS_ENABLED(X86_64)
x86: Allow interrupts to be disabled in 64-bit mode Update the code to support both 32-bit and 64-bit modes. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-09-26 03:33:23 +00:00
asm volatile ("pushfq ; popq %0 ; cli\n" : "=g" (flags) : );
#else
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
asm volatile ("pushfl ; popl %0 ; cli\n" : "=g" (flags) : );
x86: Allow interrupts to be disabled in 64-bit mode Update the code to support both 32-bit and 64-bit modes. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-09-26 03:33:23 +00:00
#endif
cosmetic: checkpatch cleanup of arch/x86/cpu/*.c Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-08 02:33:13 +00:00
return flags & X86_EFLAGS_IF;
* Patch by Daniel Engström, 13 Nov 2002: Add support for i386 architecture and AMD SC520 board * Patch by Pierre Aubert, 12 Nov 2002: Add support for DOS filesystem and booting from DOS floppy disk
2002-11-18 00:14:45 +00:00
}
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
x86: Refactor interrupt_init() Rename interrupt_init() in arch/x86/lib/pcat_interrupts.c to i8259_init() and create a new interrupt_init() in arch/x86/cpu/interrupt.c to call i8259_init() followed by a call to cpu_init_interrupts(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
2014-11-20 08:11:16 +00:00
int interrupt_init(void)
{
dm: x86: Set up interrupt routing from interrupt_init() At present interrupt routing is set up from arch_misc_init(). We can do it a little later instead, in interrupt_init(). This removes the manual pirq_init() call. Where the platform does not have an interrupt router defined in its device tree, no error is generated. Some platforms do not have this. Drop pirq_init() since it is no-longer used. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-20 04:32:26 +00:00
struct udevice *dev;
int ret;
x86: cpu: Skip init code when chain loading When U-Boot is not the first-stage bootloader the interrupt and cache init must be skipped, as well as init for various peripherals. Update the code to add checks for this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-04-26 15:12:55 +00:00
if (!ll_boot_init())
return 0;
dm: x86: Set up interrupt routing from interrupt_init() At present interrupt routing is set up from arch_misc_init(). We can do it a little later instead, in interrupt_init(). This removes the manual pirq_init() call. Where the platform does not have an interrupt router defined in its device tree, no error is generated. Some platforms do not have this. Drop pirq_init() since it is no-longer used. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-20 04:32:26 +00:00
/* Try to set up the interrupt router, but don't require one */
x86: Give each driver an IRQ type Add an IRQ type to each driver and use irq_first_device_type() to find and probe the correct one. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-06 16:54:58 +00:00
ret = irq_first_device_type(X86_IRQT_BASE, &dev);
dm: x86: Set up interrupt routing from interrupt_init() At present interrupt routing is set up from arch_misc_init(). We can do it a little later instead, in interrupt_init(). This removes the manual pirq_init() call. Where the platform does not have an interrupt router defined in its device tree, no error is generated. Some platforms do not have this. Drop pirq_init() since it is no-longer used. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-20 04:32:26 +00:00
if (ret && ret != -ENODEV)
return ret;
x86: Add support for U-Boot as an EFI application Add the required x86 glue code. This includes the initial start-up, relocation and jumping to efi_main(). We also need to avoid fiddling with interrupts. Signed-off-by: Ben Stoltz <stoltz@google.com> Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-08-04 18:33:46 +00:00
/*
* When running as an EFI application we are not in control of
* interrupts and should leave them alone.
*/
#ifndef CONFIG_EFI_APP
x86: Refactor interrupt_init() Rename interrupt_init() in arch/x86/lib/pcat_interrupts.c to i8259_init() and create a new interrupt_init() in arch/x86/cpu/interrupt.c to call i8259_init() followed by a call to cpu_init_interrupts(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
2014-11-20 08:11:16 +00:00
/* Just in case... */
disable_interrupts();
x86: Rename pcat_ to i8254 and i8259 accordingly Rename pcat_timer.c to i8254.c and pcat_interrupts.c to i8259.c, to match their header file names (i8254.h and i8259.h). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-10-23 02:13:30 +00:00
#ifdef CONFIG_I8259_PIC
x86: Refactor interrupt_init() Rename interrupt_init() in arch/x86/lib/pcat_interrupts.c to i8259_init() and create a new interrupt_init() in arch/x86/cpu/interrupt.c to call i8259_init() followed by a call to cpu_init_interrupts(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
2014-11-20 08:11:16 +00:00
/* Initialize the master/slave i8259 pic */
i8259_init();
#endif
x86: make the LAPIC / IOAPIC construct switchable with Kconfig There are still systems running which do not have any LAPIC or even IOAPIC. Responsible MSRs for those do not exist and the systems are crashing on trying to setup LAPIC. This commit makes the APIC stuff able to switch off for those boards which dont' have an LAPIC / IOAPIC. Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2018-11-18 22:19:43 +00:00
#ifdef CONFIG_APIC
x86: Call lapic_setup() in interrupt_init() Let's configure LAPIC in a common place - interrupt_init(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-22 08:45:33 +00:00
lapic_setup();
x86: make the LAPIC / IOAPIC construct switchable with Kconfig There are still systems running which do not have any LAPIC or even IOAPIC. Responsible MSRs for those do not exist and the systems are crashing on trying to setup LAPIC. This commit makes the APIC stuff able to switch off for those boards which dont' have an LAPIC / IOAPIC. Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2018-11-18 22:19:43 +00:00
#endif
x86: Call lapic_setup() in interrupt_init() Let's configure LAPIC in a common place - interrupt_init(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-22 08:45:33 +00:00
x86: Refactor interrupt_init() Rename interrupt_init() in arch/x86/lib/pcat_interrupts.c to i8259_init() and create a new interrupt_init() in arch/x86/cpu/interrupt.c to call i8259_init() followed by a call to cpu_init_interrupts(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
2014-11-20 08:11:16 +00:00
/* Initialize core interrupt and exception functionality of CPU */
cpu_init_interrupts();
x86: Handle running as EFI payload When U-Boot runs as an EFI payload it needs to avoid setting up the CPU again. Also U-Boot currently does not handle interrupts for many devices, so run with interrupts disabled. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-08-04 18:34:00 +00:00
/*
* It is now safe to enable interrupts.
*
* TODO(sjg@chromium.org): But we don't handle these correctly when
* booted from EFI.
*/
x86: cpu: Skip init code when chain loading When U-Boot is not the first-stage bootloader the interrupt and cache init must be skipped, as well as init for various peripherals. Update the code to add checks for this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-04-26 15:12:55 +00:00
enable_interrupts();
x86: Add support for U-Boot as an EFI application Add the required x86 glue code. This includes the initial start-up, relocation and jumping to efi_main(). We also need to avoid fiddling with interrupts. Signed-off-by: Ben Stoltz <stoltz@google.com> Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-08-04 18:33:46 +00:00
#endif
x86: Refactor interrupt_init() Rename interrupt_init() in arch/x86/lib/pcat_interrupts.c to i8259_init() and create a new interrupt_init() in arch/x86/cpu/interrupt.c to call i8259_init() followed by a call to cpu_init_interrupts(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
2014-11-20 08:11:16 +00:00
return 0;
}
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
/* IRQ Low-Level Service Routine */
x86: Fix %ss and %esp in register structure for interrupts
2010-10-07 09:03:23 +00:00
void irq_llsr(struct irq_regs *regs)
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
{
/*
* For detailed description of each exception, refer to:
Convert ISO-8859 files to UTF-8 There was a mix of UTF-8 and ISO-8859 files in the U-Boot source tree, which could cause issues with the patchwork review system. This commit converts all ISO-8859 files to UTF-8. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2011-08-04 16:45:45 +00:00
* Intel® 64 and IA-32 Architectures Software Developer's Manual
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
* Volume 1: Basic Architecture
* Order Number: 253665-029US, November 2008
* Table 6-1. Exceptions and Interrupts
*/
x86: Simplify architecture defined exception handling in irq_llsr() Instead of using switch..case for architecture defined exceptions, simply unify the handling by printing a message of exception name, followed by registers dump then halt the CPU. With this unification, it also fixes the wrong exception numbers for #MF/#AC/#MC/#XM which should be 16/17/18/19 not 15/16/17/18. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-07-10 02:51:23 +00:00
if (regs->irq_id < 32) {
/* Architecture defined exception */
do_exception(regs);
} else {
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
/* Hardware or User IRQ */
x86: Fix %ss and %esp in register structure for interrupts
2010-10-07 09:03:23 +00:00
do_irq(regs->irq_id);
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
}
}
/*
* OK - This looks really horrible, but it serves a purpose - It helps create
* fully relocatable code.
* - The call to irq_llsr will be a relative jump
* - The IRQ entries will be guaranteed to be in order
x86: Add register dump to crash handlers Shamelessly steal the Linux x86 crash handling code and shove it into U-Boot (cool - it fits). Be sure to include suitable attribution to Linus Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-04-23 14:05:38 +00:00
* Interrupt entries are now very small (a push and a jump) but they are
* now slower (all registers pushed on stack which provides complete
* crash dumps in the low level handlers
x86: Fix %ss and %esp in register structure for interrupts
2010-10-07 09:03:23 +00:00
*
* Interrupt Entry Point:
* - Interrupt has caused eflags, CS and EIP to be pushed
* - Interrupt Vector Handler has pushed orig_eax
* - pt_regs.esp needs to be adjusted by 40 bytes:
* 12 bytes pushed by CPU (EFLAGSF, CS, EIP)
* 4 bytes pushed by vector handler (irq_id)
* 24 bytes pushed before SP (SS, GS, FS, ES, DS, EAX)
* NOTE: Only longs are pushed on/popped off the stack!
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
*/
asm(".globl irq_common_entry\n" \
i386: Remove inline asm symbols from .dynsym Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:19 +00:00
".hidden irq_common_entry\n" \
".type irq_common_entry, @function\n" \
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
"irq_common_entry:\n" \
x86: Add register dump to crash handlers Shamelessly steal the Linux x86 crash handling code and shove it into U-Boot (cool - it fits). Be sure to include suitable attribution to Linus Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-04-23 14:05:38 +00:00
"cld\n" \
x86: Fix %ss and %esp in register structure for interrupts
2010-10-07 09:03:23 +00:00
"pushl %ss\n" \
x86: Add register dump to crash handlers Shamelessly steal the Linux x86 crash handling code and shove it into U-Boot (cool - it fits). Be sure to include suitable attribution to Linus Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-04-23 14:05:38 +00:00
"pushl %gs\n" \
"pushl %fs\n" \
"pushl %es\n" \
"pushl %ds\n" \
"pushl %eax\n" \
x86: Fix %ss and %esp in register structure for interrupts
2010-10-07 09:03:23 +00:00
"movl %esp, %eax\n" \
"addl $40, %eax\n" \
"pushl %eax\n" \
x86: Add register dump to crash handlers Shamelessly steal the Linux x86 crash handling code and shove it into U-Boot (cool - it fits). Be sure to include suitable attribution to Linus Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-04-23 14:05:38 +00:00
"pushl %ebp\n" \
"pushl %edi\n" \
"pushl %esi\n" \
"pushl %edx\n" \
"pushl %ecx\n" \
"pushl %ebx\n" \
"mov %esp, %eax\n" \
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
"call irq_llsr\n" \
x86: Add register dump to crash handlers Shamelessly steal the Linux x86 crash handling code and shove it into U-Boot (cool - it fits). Be sure to include suitable attribution to Linus Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-04-23 14:05:38 +00:00
"popl %ebx\n" \
"popl %ecx\n" \
"popl %edx\n" \
"popl %esi\n" \
"popl %edi\n" \
"popl %ebp\n" \
"popl %eax\n" \
x86: Fix %ss and %esp in register structure for interrupts
2010-10-07 09:03:23 +00:00
"popl %eax\n" \
x86: Add register dump to crash handlers Shamelessly steal the Linux x86 crash handling code and shove it into U-Boot (cool - it fits). Be sure to include suitable attribution to Linus Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-04-23 14:05:38 +00:00
"popl %ds\n" \
"popl %es\n" \
"popl %fs\n" \
"popl %gs\n" \
x86: Fix %ss and %esp in register structure for interrupts
2010-10-07 09:03:23 +00:00
"popl %ss\n" \
x86: Add register dump to crash handlers Shamelessly steal the Linux x86 crash handling code and shove it into U-Boot (cool - it fits). Be sure to include suitable attribution to Linus Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-04-23 14:05:38 +00:00
"add $4, %esp\n" \
i386: Rearrange Interupt Handling In preperation for full relocation Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-11-24 09:04:18 +00:00
"iret\n" \
DECLARE_INTERRUPT(0) \
DECLARE_INTERRUPT(1) \
DECLARE_INTERRUPT(2) \
DECLARE_INTERRUPT(3) \
DECLARE_INTERRUPT(4) \
DECLARE_INTERRUPT(5) \
DECLARE_INTERRUPT(6) \
DECLARE_INTERRUPT(7) \
DECLARE_INTERRUPT(8) \
DECLARE_INTERRUPT(9) \
DECLARE_INTERRUPT(10) \
DECLARE_INTERRUPT(11) \
DECLARE_INTERRUPT(12) \
DECLARE_INTERRUPT(13) \
DECLARE_INTERRUPT(14) \
DECLARE_INTERRUPT(15) \
DECLARE_INTERRUPT(16) \
DECLARE_INTERRUPT(17) \
DECLARE_INTERRUPT(18) \
DECLARE_INTERRUPT(19) \
DECLARE_INTERRUPT(20) \
DECLARE_INTERRUPT(21) \
DECLARE_INTERRUPT(22) \
DECLARE_INTERRUPT(23) \
DECLARE_INTERRUPT(24) \
DECLARE_INTERRUPT(25) \
DECLARE_INTERRUPT(26) \
DECLARE_INTERRUPT(27) \
DECLARE_INTERRUPT(28) \
DECLARE_INTERRUPT(29) \
DECLARE_INTERRUPT(30) \
DECLARE_INTERRUPT(31) \
DECLARE_INTERRUPT(32) \
DECLARE_INTERRUPT(33) \
DECLARE_INTERRUPT(34) \
DECLARE_INTERRUPT(35) \
DECLARE_INTERRUPT(36) \
DECLARE_INTERRUPT(37) \
DECLARE_INTERRUPT(38) \
DECLARE_INTERRUPT(39) \
DECLARE_INTERRUPT(40) \
DECLARE_INTERRUPT(41) \
DECLARE_INTERRUPT(42) \
DECLARE_INTERRUPT(43) \
DECLARE_INTERRUPT(44) \
DECLARE_INTERRUPT(45) \
DECLARE_INTERRUPT(46) \
DECLARE_INTERRUPT(47) \
DECLARE_INTERRUPT(48) \
DECLARE_INTERRUPT(49) \
DECLARE_INTERRUPT(50) \
DECLARE_INTERRUPT(51) \
DECLARE_INTERRUPT(52) \
DECLARE_INTERRUPT(53) \
DECLARE_INTERRUPT(54) \
DECLARE_INTERRUPT(55) \
DECLARE_INTERRUPT(56) \
DECLARE_INTERRUPT(57) \
DECLARE_INTERRUPT(58) \
DECLARE_INTERRUPT(59) \
DECLARE_INTERRUPT(60) \
DECLARE_INTERRUPT(61) \
DECLARE_INTERRUPT(62) \
DECLARE_INTERRUPT(63) \
DECLARE_INTERRUPT(64) \
DECLARE_INTERRUPT(65) \
DECLARE_INTERRUPT(66) \
DECLARE_INTERRUPT(67) \
DECLARE_INTERRUPT(68) \
DECLARE_INTERRUPT(69) \
DECLARE_INTERRUPT(70) \
DECLARE_INTERRUPT(71) \
DECLARE_INTERRUPT(72) \
DECLARE_INTERRUPT(73) \
DECLARE_INTERRUPT(74) \
DECLARE_INTERRUPT(75) \
DECLARE_INTERRUPT(76) \
DECLARE_INTERRUPT(77) \
DECLARE_INTERRUPT(78) \
DECLARE_INTERRUPT(79) \
DECLARE_INTERRUPT(80) \
DECLARE_INTERRUPT(81) \
DECLARE_INTERRUPT(82) \
DECLARE_INTERRUPT(83) \
DECLARE_INTERRUPT(84) \
DECLARE_INTERRUPT(85) \
DECLARE_INTERRUPT(86) \
DECLARE_INTERRUPT(87) \
DECLARE_INTERRUPT(88) \
DECLARE_INTERRUPT(89) \
DECLARE_INTERRUPT(90) \
DECLARE_INTERRUPT(91) \
DECLARE_INTERRUPT(92) \
DECLARE_INTERRUPT(93) \
DECLARE_INTERRUPT(94) \
DECLARE_INTERRUPT(95) \
DECLARE_INTERRUPT(97) \
DECLARE_INTERRUPT(96) \
DECLARE_INTERRUPT(98) \
DECLARE_INTERRUPT(99) \
DECLARE_INTERRUPT(100) \
DECLARE_INTERRUPT(101) \
DECLARE_INTERRUPT(102) \
DECLARE_INTERRUPT(103) \
DECLARE_INTERRUPT(104) \
DECLARE_INTERRUPT(105) \
DECLARE_INTERRUPT(106) \
DECLARE_INTERRUPT(107) \
DECLARE_INTERRUPT(108) \
DECLARE_INTERRUPT(109) \
DECLARE_INTERRUPT(110) \
DECLARE_INTERRUPT(111) \
DECLARE_INTERRUPT(112) \
DECLARE_INTERRUPT(113) \
DECLARE_INTERRUPT(114) \
DECLARE_INTERRUPT(115) \
DECLARE_INTERRUPT(116) \
DECLARE_INTERRUPT(117) \
DECLARE_INTERRUPT(118) \
DECLARE_INTERRUPT(119) \
DECLARE_INTERRUPT(120) \
DECLARE_INTERRUPT(121) \
DECLARE_INTERRUPT(122) \
DECLARE_INTERRUPT(123) \
DECLARE_INTERRUPT(124) \
DECLARE_INTERRUPT(125) \
DECLARE_INTERRUPT(126) \
DECLARE_INTERRUPT(127) \
DECLARE_INTERRUPT(128) \
DECLARE_INTERRUPT(129) \
DECLARE_INTERRUPT(130) \
DECLARE_INTERRUPT(131) \
DECLARE_INTERRUPT(132) \
DECLARE_INTERRUPT(133) \
DECLARE_INTERRUPT(134) \
DECLARE_INTERRUPT(135) \
DECLARE_INTERRUPT(136) \
DECLARE_INTERRUPT(137) \
DECLARE_INTERRUPT(138) \
DECLARE_INTERRUPT(139) \
DECLARE_INTERRUPT(140) \
DECLARE_INTERRUPT(141) \
DECLARE_INTERRUPT(142) \
DECLARE_INTERRUPT(143) \
DECLARE_INTERRUPT(144) \
DECLARE_INTERRUPT(145) \
DECLARE_INTERRUPT(146) \
DECLARE_INTERRUPT(147) \
DECLARE_INTERRUPT(148) \
DECLARE_INTERRUPT(149) \
DECLARE_INTERRUPT(150) \
DECLARE_INTERRUPT(151) \
DECLARE_INTERRUPT(152) \
DECLARE_INTERRUPT(153) \
DECLARE_INTERRUPT(154) \
DECLARE_INTERRUPT(155) \
DECLARE_INTERRUPT(156) \
DECLARE_INTERRUPT(157) \
DECLARE_INTERRUPT(158) \
DECLARE_INTERRUPT(159) \
DECLARE_INTERRUPT(160) \
DECLARE_INTERRUPT(161) \
DECLARE_INTERRUPT(162) \
DECLARE_INTERRUPT(163) \
DECLARE_INTERRUPT(164) \
DECLARE_INTERRUPT(165) \
DECLARE_INTERRUPT(166) \
DECLARE_INTERRUPT(167) \
DECLARE_INTERRUPT(168) \
DECLARE_INTERRUPT(169) \
DECLARE_INTERRUPT(170) \
DECLARE_INTERRUPT(171) \
DECLARE_INTERRUPT(172) \
DECLARE_INTERRUPT(173) \
DECLARE_INTERRUPT(174) \
DECLARE_INTERRUPT(175) \
DECLARE_INTERRUPT(176) \
DECLARE_INTERRUPT(177) \
DECLARE_INTERRUPT(178) \
DECLARE_INTERRUPT(179) \
DECLARE_INTERRUPT(180) \
DECLARE_INTERRUPT(181) \
DECLARE_INTERRUPT(182) \
DECLARE_INTERRUPT(183) \
DECLARE_INTERRUPT(184) \
DECLARE_INTERRUPT(185) \
DECLARE_INTERRUPT(186) \
DECLARE_INTERRUPT(187) \
DECLARE_INTERRUPT(188) \
DECLARE_INTERRUPT(189) \
DECLARE_INTERRUPT(190) \
DECLARE_INTERRUPT(191) \
DECLARE_INTERRUPT(192) \
DECLARE_INTERRUPT(193) \
DECLARE_INTERRUPT(194) \
DECLARE_INTERRUPT(195) \
DECLARE_INTERRUPT(196) \
DECLARE_INTERRUPT(197) \
DECLARE_INTERRUPT(198) \
DECLARE_INTERRUPT(199) \
DECLARE_INTERRUPT(200) \
DECLARE_INTERRUPT(201) \
DECLARE_INTERRUPT(202) \
DECLARE_INTERRUPT(203) \
DECLARE_INTERRUPT(204) \
DECLARE_INTERRUPT(205) \
DECLARE_INTERRUPT(206) \
DECLARE_INTERRUPT(207) \
DECLARE_INTERRUPT(208) \
DECLARE_INTERRUPT(209) \
DECLARE_INTERRUPT(210) \
DECLARE_INTERRUPT(211) \
DECLARE_INTERRUPT(212) \
DECLARE_INTERRUPT(213) \
DECLARE_INTERRUPT(214) \
DECLARE_INTERRUPT(215) \
DECLARE_INTERRUPT(216) \
DECLARE_INTERRUPT(217) \
DECLARE_INTERRUPT(218) \
DECLARE_INTERRUPT(219) \
DECLARE_INTERRUPT(220) \
DECLARE_INTERRUPT(221) \
DECLARE_INTERRUPT(222) \
DECLARE_INTERRUPT(223) \
DECLARE_INTERRUPT(224) \
DECLARE_INTERRUPT(225) \
DECLARE_INTERRUPT(226) \
DECLARE_INTERRUPT(227) \
DECLARE_INTERRUPT(228) \
DECLARE_INTERRUPT(229) \
DECLARE_INTERRUPT(230) \
DECLARE_INTERRUPT(231) \
DECLARE_INTERRUPT(232) \
DECLARE_INTERRUPT(233) \
DECLARE_INTERRUPT(234) \
DECLARE_INTERRUPT(235) \
DECLARE_INTERRUPT(236) \
DECLARE_INTERRUPT(237) \
DECLARE_INTERRUPT(238) \
DECLARE_INTERRUPT(239) \
DECLARE_INTERRUPT(240) \
DECLARE_INTERRUPT(241) \
DECLARE_INTERRUPT(242) \
DECLARE_INTERRUPT(243) \
DECLARE_INTERRUPT(244) \
DECLARE_INTERRUPT(245) \
DECLARE_INTERRUPT(246) \
DECLARE_INTERRUPT(247) \
DECLARE_INTERRUPT(248) \
DECLARE_INTERRUPT(249) \
DECLARE_INTERRUPT(250) \
DECLARE_INTERRUPT(251) \
DECLARE_INTERRUPT(252) \
DECLARE_INTERRUPT(253) \
DECLARE_INTERRUPT(254) \
DECLARE_INTERRUPT(255));
Reference in a new issue Copy permalink