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drm/nouveau/nvif: device time mthd 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2015-08-20 14:54:16 +10:00
parent 159045cdc4
commit d61f4c178c
4 changed files with 33 additions and 2 deletions
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7
drivers/gpu/drm/nouveau/include/nvif/class.h
View File

@ -129,6 +129,7 @@ struct nv_device_v0 {
};
#define NV_DEVICE_V0_INFO 0x00
#define NV_DEVICE_V0_TIME 0x01
struct nv_device_info_v0 {
__u8 version;
@ -157,6 +158,12 @@ struct nv_device_info_v0 {
char name[64];
};
struct nv_device_time_v0 {
__u8 version;
__u8 pad01[7];
__u64 time;
};
/*******************************************************************************
* context dma

1
drivers/gpu/drm/nouveau/include/nvif/device.h
View File

@ -57,7 +57,6 @@ u64 nvif_device_time(struct nvif_device *);
#define nvxx_gpio(a) nvkm_gpio(nvxx_device(a))
#define nvxx_clk(a) nvkm_clk(nvxx_device(a))
#define nvxx_i2c(a) nvkm_i2c(nvxx_device(a))
#define nvxx_timer(a) nvkm_timer(nvxx_device(a))
#define nvxx_therm(a) nvkm_therm(nvxx_device(a))
#include <core/device.h>

6
drivers/gpu/drm/nouveau/nvif/device.c
View File

@ -27,7 +27,11 @@
u64
nvif_device_time(struct nvif_device *device)
{
return nvxx_timer(device)->read(nvxx_timer(device));
struct nv_device_time_v0 args = {};
int ret = nvif_object_mthd(&device->object, NV_DEVICE_V0_TIME,
&args, sizeof(args));
WARN_ON_ONCE(ret != 0);
return args.time;
}
void

21
drivers/gpu/drm/nouveau/nvkm/engine/device/user.c
View File

@ -26,6 +26,7 @@
#include <core/client.h>
#include <subdev/fb.h>
#include <subdev/instmem.h>
#include <subdev/timer.h>
#include <nvif/class.h>
#include <nvif/unpack.h>
@ -111,12 +112,32 @@ nvkm_udevice_info(struct nvkm_object *object, void *data, u32 size)
return 0;
}
static int
nvkm_udevice_time(struct nvkm_object *object, void *data, u32 size)
{
struct nvkm_udevice *udev = (void *)object;
struct nvkm_device *device = udev->device;
struct nvkm_timer *tmr = device->timer;
union {
struct nv_device_time_v0 v0;
} *args = data;
int ret;
if (nvif_unpack(args->v0, 0, 0, false)) {
args->v0.time = tmr->read(tmr);
}
return ret;
}
static int
nvkm_udevice_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
{
switch (mthd) {
case NV_DEVICE_V0_INFO:
return nvkm_udevice_info(object, data, size);
case NV_DEVICE_V0_TIME:
return nvkm_udevice_time(object, data, size);
default:
break;
}