diff options
| author | Thomas Gleixner <[email protected]> | 2023-05-12 23:07:17 +0200 |
|---|---|---|
| committer | Peter Zijlstra <[email protected]> | 2023-05-15 13:44:53 +0200 |
| commit | 9d349d47f0e39b4d1b68793ded2459daa1f948f0 (patch) | |
| tree | d3f00d8c37867b3b98609ce9402cb87f29a8ab68 /drivers/fpga/fpga-mgr.c | |
| parent | d4f28f07c2fe736bce8ca415a86fb74c629200f3 (diff) | |
x86/smpboot: Make TSC synchronization function call based
Spin-waiting on the control CPU until the AP reaches the TSC
synchronization is just a waste especially in the case that there is no
synchronization required.
As the synchronization has to run with interrupts disabled the control CPU
part can just be done from a SMP function call. The upcoming AP issues that
call async only in the case that synchronization is required.
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Tested-by: Michael Kelley <[email protected]>
Tested-by: Oleksandr Natalenko <[email protected]>
Tested-by: Helge Deller <[email protected]> # parisc
Tested-by: Guilherme G. Piccoli <[email protected]> # Steam Deck
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'drivers/fpga/fpga-mgr.c')
0 files changed, 0 insertions, 0 deletions