From: Nicholas Piggin <npiggin@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH v3 11/13] powerpc/64s/exception: denorm handler use standard scratch save macro
Date: Fri, 28 Jun 2019 15:33:30 +1000 [thread overview]
Message-ID: <20190628053332.22366-12-npiggin@gmail.com> (raw)
In-Reply-To: <20190628053332.22366-1-npiggin@gmail.com>
Although the 0x1500 interrupt only applies to bare metal, it is better
to just use the standard macro for scratch save.
Runtime code path remains unchanged (due to instruction patching).
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/kernel/exceptions-64s.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index f193a67f02ba..bbe29cd80440 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1925,7 +1925,7 @@ EXC_REAL_NONE(0x1400, 0x100)
EXC_VIRT_NONE(0x5400, 0x100)
EXC_REAL_BEGIN(denorm_exception_hv, 0x1500, 0x100)
- mtspr SPRN_SPRG_HSCRATCH0,r13
+ SET_SCRATCH0(r13)
EXCEPTION_PROLOG_0 PACA_EXGEN
EXCEPTION_PROLOG_1 EXC_HV, PACA_EXGEN, 0, 0x1500, 0, 0, 0
--
2.20.1
next prev parent reply other threads:[~2019-06-28 5:51 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-28 5:33 [PATCH v3 00/13] next batch of interrupt handler improvements Nicholas Piggin
2019-06-28 5:33 ` [PATCH v3 01/13] powerpc/64s/exception: clean up system call entry Nicholas Piggin
2019-07-04 15:52 ` Michael Ellerman
2019-06-28 5:33 ` [PATCH v3 02/13] powerpc/64s/exception: avoid SPR RAW scoreboard stall in real mode entry Nicholas Piggin
2019-06-28 5:33 ` [PATCH v3 03/13] powerpc/64s/exception: mtmsrd L=1 cleanup Nicholas Piggin
2019-06-28 5:33 ` [PATCH v3 04/13] powerpc/64s/exception: windup use r9 consistently to restore SPRs Nicholas Piggin
2019-06-28 5:33 ` [PATCH v3 05/13] powerpc/64s/exception: move machine check windup in_mce handling Nicholas Piggin
2019-06-28 5:33 ` [PATCH v3 06/13] powerpc/64s/exception: simplify hmi windup code Nicholas Piggin
2019-06-28 5:33 ` [PATCH v3 07/13] powerpc/64s/exception: shuffle windup code around Nicholas Piggin
2019-06-28 5:33 ` [PATCH v3 08/13] powerpc/64s/exception: use common macro for windup Nicholas Piggin
2019-06-28 5:33 ` [PATCH v3 09/13] powerpc/64s/exception: add dar and dsisr options to exception macro Nicholas Piggin
2019-06-28 5:33 ` [PATCH v3 10/13] powerpc/64s/exception: machine check use standard macros to save dar/dsisr Nicholas Piggin
2019-06-28 5:33 ` Nicholas Piggin [this message]
2019-06-28 5:33 ` [PATCH v3 12/13] powerpc/64s/exception: move SET_SCRATCH0 into EXCEPTION_PROLOG_0 Nicholas Piggin
2019-06-28 5:33 ` [PATCH v3 13/13] powerpc/tm: update comment about interrupt re-entrancy Nicholas Piggin
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