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Properly implement "cpu_has_clflush" macro.

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Suggested by:	kib, jhb
MFC after:	1 week
Sponsored by:	Mellanox Technologies
This commit is contained in:
hselasky 2016-05-16 09:16:15 +00:00
parent 61d083eeda
commit ba172014a8
2 changed files with 17 additions and 1 deletions
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6
sys/compat/linuxkpi/common/include/linux/kernel.h
View File

@ -258,7 +258,11 @@
#define smp_processor_id() PCPU_GET(cpuid)
#define num_possible_cpus() mp_ncpus
#define num_online_cpus() mp_ncpus
#define cpu_has_clflush (1)
#if defined(__i386__) || defined(__amd64__)
extern bool linux_cpu_has_clflush;
#define cpu_has_clflush linux_cpu_has_clflush
#endif
typedef struct pm_message {
int event;

12
sys/compat/linuxkpi/common/src/linux_compat.c
View File

@ -51,6 +51,10 @@ __FBSDID("$FreeBSD$");
#include <machine/stdarg.h>
#if defined(__i386__) || defined(__amd64__)
#include <machine/md_var.h>
#endif
#include <linux/kobject.h>
#include <linux/device.h>
#include <linux/slab.h>
@ -67,6 +71,7 @@ __FBSDID("$FreeBSD$");
#include <linux/rcupdate.h>
#include <linux/interrupt.h>
#include <linux/uaccess.h>
#include <linux/kernel.h>
#include <vm/vm_pager.h>
@ -1362,12 +1367,19 @@ linux_irq_handler(void *ent)
irqe->handler(irqe->irq, irqe->arg);
}
#if defined(__i386__) || defined(__amd64__)
bool linux_cpu_has_clflush;
#endif
static void
linux_compat_init(void *arg)
{
struct sysctl_oid *rootoid;
int i;
#if defined(__i386__) || defined(__amd64__)
linux_cpu_has_clflush = (cpu_feature & CPUID_CLFSH);
#endif
sx_init(&linux_global_rcu_lock, "LinuxGlobalRCU");
rootoid = SYSCTL_ADD_ROOT_NODE(NULL,