d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Start to teach the GICv3 driver about NUMA. On ThunderX we may have

Browse Source 
multiple ITS devices, however we only want a single ITS device to be
configured on each CPU. To fix this only enable ITS when the node matches
the CPUs node.

Sponsored by:	DARPA, AFRL
This commit is contained in:
Andrew Turner 2017-08-04 13:08:45 +00:00
parent d93a896ef9
commit 49f347f450
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=322053
4 changed files with 35 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
sys/arm64/arm64/gic_v3.c
View File

@ -69,6 +69,7 @@ __FBSDID("$FreeBSD$");
#include "gic_v3_reg.h"
#include "gic_v3_var.h"
static bus_get_domain_t gic_v3_get_domain;
static bus_read_ivar_t gic_v3_read_ivar;
static pic_disable_intr_t gic_v3_disable_intr;
@ -97,6 +98,7 @@ static device_method_t gic_v3_methods[] = {
DEVMETHOD(device_detach, gic_v3_detach),
/* Bus interface */
DEVMETHOD(bus_get_domain, gic_v3_get_domain),
DEVMETHOD(bus_read_ivar, gic_v3_read_ivar),
/* Interrupt controller interface */
@ -350,6 +352,19 @@ gic_v3_detach(device_t dev)
return (0);
}
static int
gic_v3_get_domain(device_t dev, device_t child, int *domain)
{
struct gic_v3_devinfo *di;
di = device_get_ivars(child);
if (di->gic_domain < 0)
return (ENOENT);
*domain = di->gic_domain;
return (0);
}
static int
gic_v3_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
{

9
sys/arm64/arm64/gic_v3_fdt.c
View File

@ -186,6 +186,7 @@ gic_v3_fdt_attach(device_t dev)
/* OFW bus interface */
struct gic_v3_ofw_devinfo {
struct gic_v3_devinfo di_gic_dinfo;
struct ofw_bus_devinfo di_dinfo;
struct resource_list di_rl;
};
@ -281,6 +282,14 @@ gic_v3_ofw_bus_attach(device_t dev)
for (node = OF_child(parent); node > 0; node = OF_peer(node)) {
/* Allocate and populate devinfo. */
di = malloc(sizeof(*di), M_GIC_V3, M_WAITOK | M_ZERO);
/* Read the numa node, or -1 if there is none */
if (OF_getencprop(node, "numa-node-id",
&di->di_gic_dinfo.gic_domain,
sizeof(di->di_gic_dinfo.gic_domain)) <= 0) {
di->di_gic_dinfo.gic_domain = -1;
}
if (ofw_bus_gen_setup_devinfo(&di->di_dinfo, node)) {
if (bootverbose) {
device_printf(dev,

5
sys/arm64/arm64/gic_v3_var.h
View File

@ -82,6 +82,11 @@ struct gic_v3_softc {
struct gic_v3_irqsrc *gic_irqs;
};
struct gic_v3_devinfo {
int gic_domain;
};
#define GIC_INTR_ISRC(sc, irq) (&sc->gic_irqs[irq].gi_isrc)
MALLOC_DECLARE(M_GIC_V3);

6
sys/arm64/arm64/gicv3_its.c
View File

@ -576,6 +576,12 @@ its_init_cpu(device_t dev, struct gicv3_its_softc *sc)
uint64_t xbaser, tmp;
uint32_t ctlr;
u_int cpuid;
int domain;
if (bus_get_domain(dev, &domain) == 0) {
if (PCPU_GET(domain) != domain)
return (0);
}
gicv3 = device_get_parent(dev);
cpuid = PCPU_GET(cpuid);