git: d5ce54dddf49 - main - hwpmc_x86: Register interrupt handler using the dynamic NMI registration interface

The branch main has been updated by bnovkov:

URL: https://cgit.FreeBSD.org/src/commit/?id=d5ce54dddf4927a2edd3e57ee67722dfccb567a8

commit d5ce54dddf4927a2edd3e57ee67722dfccb567a8
Author:     Bojan Novković <bnovkov@FreeBSD.org>
AuthorDate: 2024-12-15 14:06:58 +0000
Commit:     Bojan Novković <bnovkov@FreeBSD.org>
CommitDate: 2024-12-15 15:39:36 +0000

    hwpmc_x86: Register interrupt handler using the dynamic NMI registration interface
    
    Register the PCINT handler using the nmi_{register, remove}_handler
    interfaces (introduced in D46421) in preparation for hwt(4)'s
    Intel Processor Trace backend. No functional change intended.
    
    Reviewed by:    kib
    Differential Revision:  https://reviews.freebsd.org/D47989
---
 sys/dev/hwpmc/hwpmc_x86.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/dev/hwpmc/hwpmc_x86.c b/sys/dev/hwpmc/hwpmc_x86.c
index 54cc919eec30..2c6c4cd148bf 100644
--- a/sys/dev/hwpmc/hwpmc_x86.c
+++ b/sys/dev/hwpmc/hwpmc_x86.c
@@ -248,6 +248,7 @@ pmc_md_initialize(void)
 				continue;
 			md->pmd_classdep[i].pcd_caps &= ~PMC_CAP_INTERRUPT;
 		}
+	nmi_register_handler(md->pmd_intr);
 
 	return (md);
 }
@@ -257,6 +258,7 @@ pmc_md_finalize(struct pmc_mdep *md)
 {
 
 	lapic_disable_pcint();
+	nmi_remove_handler(md->pmd_intr);
 	if (cpu_vendor_id == CPU_VENDOR_AMD ||
 	    cpu_vendor_id == CPU_VENDOR_HYGON)
 		pmc_amd_finalize(md);