diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/debugfs.c | 59 |
1 files changed, 43 insertions, 16 deletions
diff --git a/drivers/gpu/drm/i915/gvt/debugfs.c b/drivers/gpu/drm/i915/gvt/debugfs.c index ec47d4114554..415422b5943c 100644 --- a/drivers/gpu/drm/i915/gvt/debugfs.c +++ b/drivers/gpu/drm/i915/gvt/debugfs.c @@ -41,7 +41,7 @@ struct diff_mmio { /* Compare two diff_mmio items. */ static int mmio_offset_compare(void *priv, - struct list_head *a, struct list_head *b) + const struct list_head *a, const struct list_head *b) { struct diff_mmio *ma; struct diff_mmio *mb; @@ -66,7 +66,7 @@ static inline int mmio_diff_handler(struct intel_gvt *gvt, 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; @@ -91,16 +91,17 @@ static int vgpu_mmio_diff_show(struct seq_file *s, void *unused) .diff = 0, }; struct diff_mmio *node, *next; + intel_wakeref_t wakeref; INIT_LIST_HEAD(¶m.diff_mmio_list); mutex_lock(&gvt->lock); spin_lock_bh(&gvt->scheduler.mmio_context_lock); - mmio_hw_access_pre(gvt->gt); + wakeref = 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->gt); + mmio_hw_access_post(gvt->gt, wakeref); spin_unlock_bh(&gvt->scheduler.mmio_context_lock); mutex_unlock(&gvt->lock); @@ -147,9 +148,25 @@ vgpu_scan_nonprivbb_set(void *data, u64 val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(vgpu_scan_nonprivbb_fops, - vgpu_scan_nonprivbb_get, vgpu_scan_nonprivbb_set, - "0x%llx\n"); +DEFINE_DEBUGFS_ATTRIBUTE(vgpu_scan_nonprivbb_fops, + vgpu_scan_nonprivbb_get, vgpu_scan_nonprivbb_set, + "0x%llx\n"); + +static int vgpu_status_get(void *data, u64 *val) +{ + struct intel_vgpu *vgpu = (struct intel_vgpu *)data; + + *val = 0; + + if (test_bit(INTEL_VGPU_STATUS_ATTACHED, vgpu->status)) + *val |= (1 << INTEL_VGPU_STATUS_ATTACHED); + if (test_bit(INTEL_VGPU_STATUS_ACTIVE, vgpu->status)) + *val |= (1 << INTEL_VGPU_STATUS_ACTIVE); + + return 0; +} + +DEFINE_DEBUGFS_ATTRIBUTE(vgpu_status_fops, vgpu_status_get, NULL, "0x%llx\n"); /** * intel_gvt_debugfs_add_vgpu - register debugfs entries for a vGPU @@ -162,11 +179,12 @@ void intel_gvt_debugfs_add_vgpu(struct intel_vgpu *vgpu) snprintf(name, 16, "vgpu%d", vgpu->id); vgpu->debugfs = debugfs_create_dir(name, vgpu->gvt->debugfs_root); - 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); + debugfs_create_file_unsafe("scan_nonprivbb", 0644, vgpu->debugfs, vgpu, + &vgpu_scan_nonprivbb_fops); + debugfs_create_file_unsafe("status", 0644, vgpu->debugfs, vgpu, + &vgpu_status_fops); } /** @@ -175,8 +193,13 @@ void intel_gvt_debugfs_add_vgpu(struct intel_vgpu *vgpu) */ void intel_gvt_debugfs_remove_vgpu(struct intel_vgpu *vgpu) { - debugfs_remove_recursive(vgpu->debugfs); - vgpu->debugfs = NULL; + struct intel_gvt *gvt = vgpu->gvt; + struct dentry *debugfs_root = gvt->gt->i915->drm.debugfs_root; + + if (debugfs_root && gvt->debugfs_root) { + debugfs_remove_recursive(vgpu->debugfs); + vgpu->debugfs = NULL; + } } /** @@ -185,9 +208,9 @@ void intel_gvt_debugfs_remove_vgpu(struct intel_vgpu *vgpu) */ void intel_gvt_debugfs_init(struct intel_gvt *gvt) { - struct drm_minor *minor = gvt->gt->i915->drm.primary; + struct dentry *debugfs_root = gvt->gt->i915->drm.debugfs_root; - gvt->debugfs_root = debugfs_create_dir("gvt", minor->debugfs_root); + gvt->debugfs_root = debugfs_create_dir("gvt", debugfs_root); debugfs_create_ulong("num_tracked_mmio", 0444, gvt->debugfs_root, &gvt->mmio.num_tracked_mmio); @@ -199,6 +222,10 @@ void intel_gvt_debugfs_init(struct intel_gvt *gvt) */ void intel_gvt_debugfs_clean(struct intel_gvt *gvt) { - debugfs_remove_recursive(gvt->debugfs_root); - gvt->debugfs_root = NULL; + struct dentry *debugfs_root = gvt->gt->i915->drm.debugfs_root; + + if (debugfs_root) { + debugfs_remove_recursive(gvt->debugfs_root); + gvt->debugfs_root = NULL; + } } |