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| author | Roberto Vargas <roberto.vargas@arm.com> | 2017-11-13 13:41:58 +0000 |
|---|---|---|
| committer | Roberto Vargas <roberto.vargas@arm.com> | 2018-10-16 13:38:41 +0100 |
| commit | 32aee8415dac5ef71d53cacc28e25a8d312cc47b (patch) | |
| tree | f2ff8a50364c5bee5dd0d78a22ea66bd8ad5d3ad /bl31 | |
| parent | 0a09313ec780d2f66efcda3eb2a5d1632719bd81 (diff) | |
scmi: Optimize bakery locks when HW_ASSISTED_COHERENCY is enabled
When HW_ASSISTED_COHERENCY is enabled we can use spinlocks
instead of using the more complex and slower bakery algorithm.
Change-Id: I9d791a70050d599241169b9160a67e57d5506564
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
Diffstat (limited to 'bl31')
| -rw-r--r-- | bl31/bl31.ld.S | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/bl31/bl31.ld.S b/bl31/bl31.ld.S index 66cb3f30..81e7ba3a 100644 --- a/bl31/bl31.ld.S +++ b/bl31/bl31.ld.S @@ -188,8 +188,15 @@ SECTIONS __PERCPU_BAKERY_LOCK_SIZE__ = ABSOLUTE(. - __BAKERY_LOCK_START__); . = . + (__PERCPU_BAKERY_LOCK_SIZE__ * (PLATFORM_CORE_COUNT - 1)); __BAKERY_LOCK_END__ = .; + + /* + * If BL31 doesn't use any bakery lock then __PERCPU_BAKERY_LOCK_SIZE__ + * will be zero. For this reason, the only two valid values for + * __PERCPU_BAKERY_LOCK_SIZE__ are 0 or the platform defined value + * PLAT_PERCPU_BAKERY_LOCK_SIZE. + */ #ifdef PLAT_PERCPU_BAKERY_LOCK_SIZE - ASSERT(__PERCPU_BAKERY_LOCK_SIZE__ == PLAT_PERCPU_BAKERY_LOCK_SIZE, + ASSERT((__PERCPU_BAKERY_LOCK_SIZE__ == 0) || (__PERCPU_BAKERY_LOCK_SIZE__ == PLAT_PERCPU_BAKERY_LOCK_SIZE), "PLAT_PERCPU_BAKERY_LOCK_SIZE does not match bakery lock requirements"); #endif #endif |