AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-03 17:16:42 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

sh: smp: shove a cpu_relax() in the plat_start_cpu() busy loop.

Browse Source 
Without this, certain versions of GCC will happily optimize the entire
loop out.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2008-08-06 18:39:32 +09:00
parent 8c24594dea
commit 71f0bdcab6
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/sh/kernel/cpu/sh4a/smp-shx3.c
View File

@ -82,7 +82,7 @@ void plat_start_cpu(unsigned int cpu, unsigned long entry_point)
ctrl_outl(STBCR_MSTP, STBCR_REG(cpu));
while (!(ctrl_inl(STBCR_REG(cpu)) & STBCR_MSTP))
;
cpu_relax();
/* Start up secondary processor by sending a reset */
ctrl_outl(STBCR_AP_VAL, STBCR_REG(cpu));