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path: root/arch/x86/cpu/interrupts.c
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* x86: Show the un-relocated IP address in exceptionsSimon Glass2015-08-14-0/+2
| | | | | | | | | | 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>
* x86: Handle running as EFI payloadSimon Glass2015-08-05-2/+8
| | | | | | | | | 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>
* x86: Add support for U-Boot as an EFI applicationBen Stoltz2015-08-05-0/+6
| | | | | | | | | | 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>
* x86: Tidy up a few minor issues with interruptsSimon Glass2015-08-05-5/+4
| | | | | | | | 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>
* x86: Simplify architecture defined exception handling in irq_llsr()Bin Meng2015-07-28-105/+46
| | | | | | | | | | | | 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>
* x86: Display correct CS/EIP/EFLAGS when there is an error codeBin Meng2015-07-28-1/+28
| | | | | | | | | 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>
* x86: Provide access to the IDTSimon Glass2015-04-29-0/+5
| | | | | | | 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>
* x86: Drop old CONFIG_INTEL_CORE_ARCH codeSimon Glass2014-11-25-28/+0
| | | | | | | This is no-longer used, so drop it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Refactor interrupt_init()Bin Meng2014-11-25-6/+20
| | | | | | | | | | | 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>
* x86: Fix up some missing prototypesSimon Glass2014-11-21-1/+1
| | | | | | | 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>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-17/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* x86: Declare global_data pointer when it is usedSimon Glass2013-05-13-0/+2
| | | | | | | | 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>
* x86: Permit bootstage and timer data to be used prior to relocationSimon Glass2013-03-04-4/+3
| | | | | | | | | It is useful to be able to access the timer before U-Boot has relocated so that we can fully support bootstage. Add new global_data members to support this. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Provide tick counter and frequency reference for Intel core architectureVadim Bendebury2012-12-06-0/+31
| | | | | | | | | | | | | | | Some u-boot modules rely on availability of get_ticks() and get_tbclk() functions, reporting a free running clock and its frequency respectively. Traditionally these functions return number and frequency of timer interrupts. Intel's core architecture processors however are known to run the rdtsc instruction at a constant rate of the so called 'Max Non Turbo ratio' times the external clock frequency which is 100MHz. This is just as good for the timer tick functions in question. Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Add basic cache operationsStefan Reinauer2012-12-06-66/+2
| | | | | | | Add functions to enable/disable the data cache. Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Tweak IDT and GDT for alignment and readabilityGraeme Russ2012-01-04-1/+1
| | | | | | -- Changes for v2: - Renamed to better reflect nature of changes
* x86: Ensure IDT and GDT remain 16-byte aligned post relocationGraeme Russ2011-11-29-1/+1
| | | | | | Some CPUs have strict alignment requirements for these tables Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
* cosmetic: checkpatch cleanup of arch/x86/cpu/*.cGraeme Russ2011-11-29-12/+19
| | | | Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
* x86: Call hang() on unrecoverable exceptionGraeme Russ2011-11-29-10/+10
| | | | Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
* Convert ISO-8859 files to UTF-8Albert ARIBAUD2011-08-04-2/+2
| | | | | | | | 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>
* x86: Rename i386 to x86Graeme Russ2011-04-13-0/+674
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
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