Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

make the topology support empty on non-SMP enabled kernels.

Browse Source 
reduces kernel sizes and also fixes the builds.
This commit is contained in:
mrg 2020-01-16 06:34:24 +00:00
parent 7f682dc5e0
commit 8dfd33c1dc
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
sys/arch/arm/arm/arm_cpu_topology.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: arm_cpu_topology.c,v 1.1 2020/01/15 08:34:04 mrg Exp $ */
/* $NetBSD: arm_cpu_topology.c,v 1.2 2020/01/16 06:34:24 mrg Exp $ */
/*
* Copyright (c) 2020 Matthew R. Green
@ -28,10 +28,12 @@
* SUCH DAMAGE.
*/
/* CPU topology support for ARMv7 and ARMv8 systems. */
#include "opt_multiprocessor.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: arm_cpu_topology.c,v 1.1 2020/01/15 08:34:04 mrg Exp $");
__KERNEL_RCSID(0, "$NetBSD: arm_cpu_topology.c,v 1.2 2020/01/16 06:34:24 mrg Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -40,12 +42,14 @@ __KERNEL_RCSID(0, "$NetBSD: arm_cpu_topology.c,v 1.1 2020/01/15 08:34:04 mrg Exp
#include <arm/cpu.h>
#include <arm/cpu_topology.h>
#include <arm/armreg.h>
#include <prop/proplib.h>
void
arm_cpu_topology_set(struct cpu_info * const ci, uint64_t mpidr, bool slow)
{
#ifdef MULTIPROCESSOR
uint pkgid, coreid, smtid, numaid = 0;
if (mpidr & MPIDR_MT) {
@ -58,6 +62,7 @@ arm_cpu_topology_set(struct cpu_info * const ci, uint64_t mpidr, bool slow)
smtid = 0;
}
cpu_topology_set(ci, pkgid, coreid, smtid, numaid, slow);
#endif /* MULTIPROCESSOR */
}
void
@ -66,7 +71,6 @@ arm_cpu_do_topology(struct cpu_info *const newci)
#ifdef MULTIPROCESSOR
struct cpu_info *ci;
CPU_INFO_ITERATOR cii;
#endif /* MULTIPROCESSOR */
prop_dictionary_t dict;
uint32_t capacity_dmips_mhz = 0;
static uint32_t best_cap = 0;
@ -87,7 +91,6 @@ arm_cpu_do_topology(struct cpu_info *const newci)
arm_cpu_topology_set(newci, arm_cpu_mpidr(newci),
newci->ci_capacity_dmips_mhz < best_cap);
#ifdef MULTIPROCESSOR
/*
* Using saved largest capacity, refresh previous topology info.
* It's supposed to be OK to re-set topology.