[src/trunk]: src/sys/arch/arm/pic Only disable/enable interrupts if processin...

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/13acd05e1211
branches:  trunk
changeset: 952903:13acd05e1211
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Sat Feb 20 22:53:31 2021 +0000

description:
Only disable/enable interrupts if processing pending interrupts, and
inline pic_set_pending_psw.

diffstat:

 sys/arch/arm/pic/pic_splfuncs.c |  15 ++++++++++-----
 1 files changed, 10 insertions(+), 5 deletions(-)

diffs (51 lines):

diff -r 028d4779075b -r 13acd05e1211 sys/arch/arm/pic/pic_splfuncs.c
--- a/sys/arch/arm/pic/pic_splfuncs.c   Sat Feb 20 22:31:20 2021 +0000
+++ b/sys/arch/arm/pic/pic_splfuncs.c   Sat Feb 20 22:53:31 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pic_splfuncs.c,v 1.15 2021/02/20 19:35:07 jmcneill Exp $       */
+/*     $NetBSD: pic_splfuncs.c,v 1.16 2021/02/20 22:53:31 jmcneill Exp $       */
 /*-
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
  * All rights reserved.
@@ -28,7 +28,7 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pic_splfuncs.c,v 1.15 2021/02/20 19:35:07 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pic_splfuncs.c,v 1.16 2021/02/20 22:53:31 jmcneill Exp $");
 
 #define _INTR_PRIVATE
 #include <sys/param.h>
@@ -85,13 +85,12 @@
                return;
        }
 
-       register_t psw = cpsid(I32_bit);
-
 #if defined(__HAVE_PIC_PENDING_INTRS)
        if (__predict_true(ci->ci_pending_ipls == 0)) {
                goto skip_pending;
        }
 
+       const register_t psw = cpsid(I32_bit);
        ci->ci_intr_depth++;
        while ((ci->ci_pending_ipls & ~__BIT(savedipl)) > __BIT(savedipl)) {
                KASSERT(ci->ci_pending_ipls < __BIT(NIPL));
@@ -108,10 +107,16 @@
                }
        }
        ci->ci_intr_depth--;
+       if ((psw & I32_bit) == 0) {
+               cpsie(I32_bit);
+       }
 skip_pending:
 #endif
 
-       pic_set_priority_psw(ci, psw, savedipl);
+       ci->ci_cpl = savedipl;
+       if (__predict_true(pic_list[0] != NULL)) {
+               (pic_list[0]->pic_ops->pic_set_priority)(pic_list[0], savedipl);
+       }
        cpu_dosoftints();
 
        KASSERTMSG(ci->ci_cpl == savedipl, "cpl %d savedipl %d",