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drm/i915/gvt: cleanup debugfs scan_nonprivbb 

Remove extra chatty message for debugfs scan_nonprivbb which is used
to enable scan for non privileged batch on specific engine. Just write
target i915 engine mask instead.

Cc: Ding Zhuocheng <zhuocheng.ding@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200304032307.2983-1-zhenyuw@linux.intel.com
This commit is contained in:
Chris Wilson 2020-03-04 11:23:05 +08:00 committed by Zhenyu Wang
parent 135dde8853
commit aa444fc7fb
1 changed files with 1 additions and 35 deletions
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36
drivers/gpu/drm/i915/gvt/debugfs.c
View File

@ -128,6 +128,7 @@ static int
vgpu_scan_nonprivbb_get(void *data, u64 *val)
{
struct intel_vgpu *vgpu = (struct intel_vgpu *)data;
*val = vgpu->scan_nonprivbb;
return 0;
}
@ -142,42 +143,7 @@ static int
vgpu_scan_nonprivbb_set(void *data, u64 val)
{
struct intel_vgpu *vgpu = (struct intel_vgpu *)data;
struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
enum intel_engine_id id;
char buf[128], *s;
int len;
val &= (1 << I915_NUM_ENGINES) - 1;
if (vgpu->scan_nonprivbb == val)
return 0;
if (!val)
goto done;
len = sprintf(buf,
"gvt: vgpu %d turns on non-privileged batch buffers scanning on Engines:",
vgpu->id);
s = buf + len;
for (id = 0; id < I915_NUM_ENGINES; id++) {
struct intel_engine_cs *engine;
engine = dev_priv->engine[id];
if (engine && (val & (1 << id))) {
len = snprintf(s, 4, "%d, ", engine->id);
s += len;
} else
val &= ~(1 << id);
}
if (val)
sprintf(s, "low performance expected.");
pr_warn("%s\n", buf);
done:
vgpu->scan_nonprivbb = val;
return 0;
}