Messages in this thread Patch in this message | | | From | Matt Redfearn <> | Subject | [PATCH v2 07/12] MIPS: pm-cps: Use MIPS standard completion barrier | Date | Wed, 7 Sep 2016 10:45:15 +0100 |
| |
SYNC type 0 is defined in the MIPS architecture as a completion barrier where all loads/stores in the pipeline before the sync instruction must complete before any loads/stores subsequent to the sync instruction.
In places where we require loads / stores be globally completed, use the standard completion sync stype.
Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Reviewed-by: Paul Burton <paul.burton@imgtec.com> ---
Changes in v2: None
arch/mips/kernel/pm-cps.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/mips/kernel/pm-cps.c b/arch/mips/kernel/pm-cps.c index d7037fe00d1c..953ff0db9061 100644 --- a/arch/mips/kernel/pm-cps.c +++ b/arch/mips/kernel/pm-cps.c @@ -315,7 +315,7 @@ static int __init cps_gen_flush_fsb(u32 **pp, struct uasm_label **pl, } /* Barrier ensuring previous cache invalidates are complete */ - uasm_i_sync(pp, stype_memory); + uasm_i_sync(pp, STYPE_SYNC); uasm_i_ehb(pp); /* Check whether the pipeline stalled due to the FSB being full */ @@ -467,7 +467,7 @@ static void * __init cps_gen_entry_code(unsigned cpu, enum cps_pm_state state) Index_Writeback_Inv_D, lbl_flushdcache); /* Barrier ensuring previous cache invalidates are complete */ - uasm_i_sync(&p, stype_memory); + uasm_i_sync(&p, STYPE_SYNC); uasm_i_ehb(&p); /* @@ -480,7 +480,7 @@ static void * __init cps_gen_entry_code(unsigned cpu, enum cps_pm_state state) uasm_i_lw(&p, t0, 0, r_pcohctl); /* Barrier to ensure write to coherence control is complete */ - uasm_i_sync(&p, stype_intervention); + uasm_i_sync(&p, STYPE_SYNC); uasm_i_ehb(&p); /* Disable coherence */ @@ -526,7 +526,7 @@ static void * __init cps_gen_entry_code(unsigned cpu, enum cps_pm_state state) } /* Barrier to ensure write to CPC command is complete */ - uasm_i_sync(&p, stype_memory); + uasm_i_sync(&p, STYPE_SYNC); uasm_i_ehb(&p); } @@ -561,7 +561,7 @@ static void * __init cps_gen_entry_code(unsigned cpu, enum cps_pm_state state) uasm_i_lw(&p, t0, 0, r_pcohctl); /* Barrier to ensure write to coherence control is complete */ - uasm_i_sync(&p, stype_memory); + uasm_i_sync(&p, STYPE_SYNC); uasm_i_ehb(&p); if (coupled_coherence && (state == CPS_PM_NC_WAIT)) { -- 2.7.4
| |