From a45050d718f629104cfdfde0345dae617bdef3fc Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Tue, 1 Aug 2017 13:09:47 +0800 Subject: [PATCH] drm/i915/gvt: expose vGPU context hw id This exposes vGPU context hw id in mdev sysfs which is used to do vGPU based profiling. Retrieved vGPU context hw id can be set through i915 perf ioctl to set profiling for target vGPU. Cc: Jiao Pengyuan Cc: Niu Bing Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/kvmgt.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index fd0c85f9ef3c..83e88c70272a 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -1170,10 +1170,27 @@ vgpu_id_show(struct device *dev, struct device_attribute *attr, return sprintf(buf, "\n"); } +static ssize_t +hw_id_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct mdev_device *mdev = mdev_from_dev(dev); + + if (mdev) { + struct intel_vgpu *vgpu = (struct intel_vgpu *) + mdev_get_drvdata(mdev); + return sprintf(buf, "%u\n", + vgpu->shadow_ctx->hw_id); + } + return sprintf(buf, "\n"); +} + static DEVICE_ATTR_RO(vgpu_id); +static DEVICE_ATTR_RO(hw_id); static struct attribute *intel_vgpu_attrs[] = { &dev_attr_vgpu_id.attr, + &dev_attr_hw_id.attr, NULL }; -- 2.20.1