Hi Vadim,
On Thu, Apr 18, 2013 at 8:50 AM, Vadim Bendebury (вб)
<vben...@google.com> wrote:
> On Wed, Apr 17, 2013 at 7:13 PM, Simon Glass <s...@chromium.org> wrote:
>>
>> This series removes unused x86 code based on advice from Graeme Russ. THis
>> code was used for real mode which is no longer needed in U-Boot.
>>
>> A new more accurate timer is added, and this permits bootstage to be
>> enabled and produce useful results on x86.
>>
>>
>> Doug Anderson (2):
>> bootstage: Copy bootstage strings post-relocation
>> Call bootstage_relocate() after malloc is initted
>>
>> Simon Glass (17):
>> x86: Remove unused bios/pci code
>> x86: Remove unused portion of link script
>> x86: Remove legacy board init code
>> x86: Declare global_data pointer when it is used
>> x86: Implement panic output for coreboot
>> x86: Rationalise kernel booting logic and bootstage
>> x86: Add TSC timer
>> x86: Remove old broken timer implementation
>> x86: Remove ISR timer
>> x86: Re-enable PCAT timer 2 for beeping
>> bootstage: Add stubs for new bootstage functions
>> x86: Enable bootstage for coreboot
>> bootstage: Allow marking a particular line of code
>> x86: Fix warning in cmd_ximg.c when CONFIG_GZIP is not defined
>> x86: config: Enable LZO for coreboot, remove zlib, gzip
>> x86: Support adding coreboot timestanps to bootstage
>> x86: Add coreboot timestamps
>>
>> arch/x86/cpu/Makefile | 2 +-
>> arch/x86/cpu/coreboot/coreboot.c | 13 ++
>> arch/x86/cpu/coreboot/timestamp.c | 42 +++-
>> arch/x86/cpu/cpu.c | 5 +
>> arch/x86/cpu/interrupts.c | 2 +
>> arch/x86/cpu/timer.c | 17 --
>> arch/x86/cpu/u-boot.lds | 12 --
>> arch/x86/include/asm/arch-coreboot/timestamp.h | 7 +
>> arch/x86/include/asm/init_helpers.h | 9 -
>> arch/x86/include/asm/init_wrappers.h | 42 ----
>> arch/x86/include/asm/pci.h | 4 -
>> arch/x86/include/asm/u-boot-x86.h | 4 +
>> arch/x86/include/asm/u-boot.h | 32 ---
>> arch/x86/lib/Makefile | 10 +-
>> arch/x86/lib/bios.h | 170 ---------------
>> arch/x86/lib/board.c | 273
>> -------------------------
>> arch/x86/lib/bootm.c | 8 -
>> arch/x86/lib/cmd_boot.c | 2 +
>> arch/x86/lib/init_helpers.c | 98 ---------
>> arch/x86/lib/init_wrappers.c | 164 ---------------
>> arch/x86/lib/pcat_timer.c | 69 +------
>> arch/x86/lib/pci.c | 188 -----------------
>> arch/x86/lib/physmem.c | 2 +
>> arch/x86/lib/relocate.c | 2 +
>> arch/x86/lib/timer.c | 116 -----------
>> arch/x86/lib/tsc_timer.c | 107 ++++++++++
>> arch/x86/lib/zimage.c | 11 +-
>> common/board_r.c | 1 +
>> common/bootstage.c | 44 ++++
>> common/cmd_ximg.c | 2 +
>> include/bootstage.h | 54 +++++
>> include/configs/coreboot.h | 18 +-
>> 32 files changed, 314 insertions(+), 1216 deletions(-)
>> delete mode 100644 arch/x86/cpu/timer.c
>> delete mode 100644 arch/x86/include/asm/init_wrappers.h
>> delete mode 100644 arch/x86/lib/bios.h
>> delete mode 100644 arch/x86/lib/board.c
>> delete mode 100644 arch/x86/lib/init_wrappers.c
>> delete mode 100644 arch/x86/lib/pci.c
>> delete mode 100644 arch/x86/lib/timer.c
>> create mode 100644 arch/x86/lib/tsc_timer.c
>>
>> --
>> 1.8.2.1
>>
>
> Simon, just out of curiosity: how was this tested, on what platforms,
> what procedure was followed, etc.
I used the time command to test that the time seems about right, by
timing for 10 seconds and comparing against a stopwatch:
boot > time sleep 10
time: 10.000 seconds, 10000 ticks
Also I obtained a bootstage report which looked fairly sane:
boot > bootstage report
Timer summary in microseconds:
Mark Elapsed Stage
0 0 reset
1,028,998 1,028,998 board_init_f
1,035,680 6,682 board_init_r
1,092,769 57,089 id=64
1,094,506 1,737 main_loop
Accumulated time:
All testing was done on link only.
Regards,
Simon
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