diff options
| author | Hyungwoo Yang <hyungwoo.yang@intel.com> | 2019-01-23 23:20:23 -0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2019-01-30 20:41:19 -0800 |
| commit | 816b06ea5868d72b9a2858e395c056d5edc7354d (patch) | |
| tree | 868e53f4466f4e74f31e3ed5f2ce7d6299335138 /core/minute-ia/switch.S | |
| parent | 77e81a4a63e3edaaefc110cfa228701ba973aca4 (diff) | |
| download | chrome-ec-816b06ea5868d72b9a2858e395c056d5edc7354d.tar.gz | |
ish: apply FPU context of the first task
FPU H/W configuration is available per task and it is initialized in
task_pre_init() but currently the configuration for the first task is
ignored due to lack of restoring(to H/W) in __task_start() function.
This patch makes sure that the configuration restored to H/W.
BRANCH=none
BUG=none
TEST=verified in Atlas platform
Change-Id: I974fec779b3683fa7e9413dc73a4b8dcfb291596
Reviewed-on: https://chromium-review.googlesource.com/1435484
Commit-Ready: Hyungwoo Yang <hyungwoo.yang@intel.com>
Tested-by: Hyungwoo Yang <hyungwoo.yang@intel.com>
Reviewed-by: Hyungwoo Yang <hyungwoo.yang@intel.com>
Reviewed-by: Jett Rink <jettrink@chromium.org>
Diffstat (limited to 'core/minute-ia/switch.S')
| -rw-r--r-- | core/minute-ia/switch.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/core/minute-ia/switch.S b/core/minute-ia/switch.S index 9391c186e4..b467a39c3c 100644 --- a/core/minute-ia/switch.S +++ b/core/minute-ia/switch.S @@ -31,6 +31,9 @@ __task_start: movl current_task, %eax movl (%eax), %esp +#ifdef CONFIG_FPU + frstor 20(%eax) +#endif popa iret .endfunc |