From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/drivers/gpu/drm/i915/gvt/debugfs.c | 98 ++++++++----------------------------------------
1 files changed, 17 insertions(+), 81 deletions(-)
diff --git a/kernel/drivers/gpu/drm/i915/gvt/debugfs.c b/kernel/drivers/gpu/drm/i915/gvt/debugfs.c
index 2ec89bc..62e6a14 100644
--- a/kernel/drivers/gpu/drm/i915/gvt/debugfs.c
+++ b/kernel/drivers/gpu/drm/i915/gvt/debugfs.c
@@ -58,16 +58,15 @@
static inline int mmio_diff_handler(struct intel_gvt *gvt,
u32 offset, void *data)
{
- struct drm_i915_private *dev_priv = gvt->dev_priv;
struct mmio_diff_param *param = data;
struct diff_mmio *node;
u32 preg, vreg;
- preg = I915_READ_NOTRACE(_MMIO(offset));
+ preg = intel_uncore_read_notrace(gvt->gt->uncore, _MMIO(offset));
vreg = vgpu_vreg(param->vgpu, offset);
if (preg != vreg) {
- node = kmalloc(sizeof(*node), GFP_KERNEL);
+ node = kmalloc(sizeof(*node), GFP_ATOMIC);
if (!node)
return -ENOMEM;
@@ -98,10 +97,10 @@
mutex_lock(&gvt->lock);
spin_lock_bh(&gvt->scheduler.mmio_context_lock);
- mmio_hw_access_pre(gvt->dev_priv);
+ mmio_hw_access_pre(gvt->gt);
/* Recognize all the diff mmios to list. */
intel_gvt_for_each_tracked_mmio(gvt, mmio_diff_handler, ¶m);
- mmio_hw_access_post(gvt->dev_priv);
+ mmio_hw_access_post(gvt->gt);
spin_unlock_bh(&gvt->scheduler.mmio_context_lock);
mutex_unlock(&gvt->lock);
@@ -128,6 +127,7 @@
vgpu_scan_nonprivbb_get(void *data, u64 *val)
{
struct intel_vgpu *vgpu = (struct intel_vgpu *)data;
+
*val = vgpu->scan_nonprivbb;
return 0;
}
@@ -142,42 +142,7 @@
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;
}
@@ -189,36 +154,19 @@
/**
* intel_gvt_debugfs_add_vgpu - register debugfs entries for a vGPU
* @vgpu: a vGPU
- *
- * Returns:
- * Zero on success, negative error code if failed.
*/
-int intel_gvt_debugfs_add_vgpu(struct intel_vgpu *vgpu)
+void intel_gvt_debugfs_add_vgpu(struct intel_vgpu *vgpu)
{
- struct dentry *ent;
- char name[10] = "";
+ char name[16] = "";
- sprintf(name, "vgpu%d", vgpu->id);
+ snprintf(name, 16, "vgpu%d", vgpu->id);
vgpu->debugfs = debugfs_create_dir(name, vgpu->gvt->debugfs_root);
- if (!vgpu->debugfs)
- return -ENOMEM;
- ent = debugfs_create_bool("active", 0444, vgpu->debugfs,
- &vgpu->active);
- if (!ent)
- return -ENOMEM;
-
- ent = debugfs_create_file("mmio_diff", 0444, vgpu->debugfs,
- vgpu, &vgpu_mmio_diff_fops);
- if (!ent)
- return -ENOMEM;
-
- ent = debugfs_create_file("scan_nonprivbb", 0644, vgpu->debugfs,
- vgpu, &vgpu_scan_nonprivbb_fops);
- if (!ent)
- return -ENOMEM;
-
- return 0;
+ debugfs_create_bool("active", 0444, vgpu->debugfs, &vgpu->active);
+ debugfs_create_file("mmio_diff", 0444, vgpu->debugfs, vgpu,
+ &vgpu_mmio_diff_fops);
+ debugfs_create_file("scan_nonprivbb", 0644, vgpu->debugfs, vgpu,
+ &vgpu_scan_nonprivbb_fops);
}
/**
@@ -234,27 +182,15 @@
/**
* intel_gvt_debugfs_init - register gvt debugfs root entry
* @gvt: GVT device
- *
- * Returns:
- * zero on success, negative if failed.
*/
-int intel_gvt_debugfs_init(struct intel_gvt *gvt)
+void intel_gvt_debugfs_init(struct intel_gvt *gvt)
{
- struct drm_minor *minor = gvt->dev_priv->drm.primary;
- struct dentry *ent;
+ struct drm_minor *minor = gvt->gt->i915->drm.primary;
gvt->debugfs_root = debugfs_create_dir("gvt", minor->debugfs_root);
- if (!gvt->debugfs_root) {
- gvt_err("Cannot create debugfs dir\n");
- return -ENOMEM;
- }
- ent = debugfs_create_ulong("num_tracked_mmio", 0444, gvt->debugfs_root,
- &gvt->mmio.num_tracked_mmio);
- if (!ent)
- return -ENOMEM;
-
- return 0;
+ debugfs_create_ulong("num_tracked_mmio", 0444, gvt->debugfs_root,
+ &gvt->mmio.num_tracked_mmio);
}
/**
--
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