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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2021-10-15 17:14:20 +0300 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2022-02-05 07:48:18 +0000 |
| commit | 710bdc42a5f409261335495c03882e2b133a384c (patch) | |
| tree | 5bc1b0029da34466c888f83c024b0d63e5fa5906 /src/include/cpu | |
| parent | 0c1158b15d8874f0c24a65245aabd1c6dca9d8c2 (diff) | |
cpu/x86/lapic: Add lapic_send_ipi_self,others()
This avoids unnecessary passing of APIC ID parameter and
allows some minor optimisation for X2APIC mode.
Change-Id: I0b0c8c39ecd13858cffc91cc781bea52decf67c5
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60713
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'src/include/cpu')
| -rw-r--r-- | src/include/cpu/x86/lapic.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/include/cpu/x86/lapic.h b/src/include/cpu/x86/lapic.h index 779799ecf4..c1603f21f0 100644 --- a/src/include/cpu/x86/lapic.h +++ b/src/include/cpu/x86/lapic.h @@ -143,6 +143,17 @@ static __always_inline unsigned int lapicid(void) return lapicid; } +static __always_inline void lapic_send_ipi_self(uint32_t icrlow) +{ + /* LAPIC_DEST_SELF does not support all delivery mode -fields. */ + lapic_send_ipi(icrlow, lapicid()); +} + +static __always_inline void lapic_send_ipi_others(uint32_t icrlow) +{ + lapic_send_ipi(LAPIC_DEST_ALLBUT | icrlow, 0); +} + #if !CONFIG(AP_IN_SIPI_WAIT) /* If we need to go back to sipi wait, we use the long non-inlined version of * this function in lapic_cpu_stop.c |