Merge tag 'gvt-next-2022-11-17' of https://github.com/intel/gvt-linux into drm-intel-next

gvt-next-2022-11-17

- kernel doc fixes
- remove vgpu->released sanity check
- small clean up
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
From: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221117064106.GT30028@zhen-hp.sh.intel.com

drivers/gpu/drm/i915/gvt/cfg_space.c

@@ -244,7 +244,7 @@ static void emulate_pci_bar_write(struct intel_vgpu *vgpu, unsigned int offset,
 }
 
 /**
- * intel_vgpu_emulate_cfg_read - emulate vGPU configuration space write
+ * intel_vgpu_emulate_cfg_write - emulate vGPU configuration space write
  * @vgpu: target vgpu
  * @offset: offset
  * @p_data: write data ptr

drivers/gpu/drm/i915/gvt/dmabuf.h

@@ -48,7 +48,7 @@ struct intel_vgpu_fb_info {
 	struct intel_vgpu_dmabuf_obj *obj;
 };
 
-/**
+/*
  * struct intel_vgpu_dmabuf_obj- Intel vGPU device buffer object
  */
 struct intel_vgpu_dmabuf_obj {

drivers/gpu/drm/i915/gvt/firmware.c

@@ -104,7 +104,7 @@ static int expose_firmware_sysfs(struct intel_gvt *gvt)
 
 	memcpy(p, gvt->firmware.mmio, info->mmio_size);
 
-	crc32_start = offsetof(struct gvt_firmware_header, crc32) + 4;
+	crc32_start = offsetof(struct gvt_firmware_header, version);
 	h->crc32 = crc32_le(0, firmware + crc32_start, size - crc32_start);
 
 	firmware_attr.size = size;

drivers/gpu/drm/i915/gvt/gtt.c

@@ -282,11 +282,6 @@ static inline int get_next_pt_type(int type)
 	return gtt_type_table[type].next_pt_type;
 }
 
-static inline int get_pt_type(int type)
-{
-	return gtt_type_table[type].pt_type;
-}
-
 static inline int get_entry_type(int type)
 {
 	return gtt_type_table[type].entry_type;
@@ -2785,7 +2780,7 @@ int intel_gvt_init_gtt(struct intel_gvt *gvt)
  * intel_gvt_clean_gtt - clean up mm components of a GVT device
  * @gvt: GVT device
  *
- * This function is called at the driver unloading stage, to clean up the
+ * This function is called at the driver unloading stage, to clean up
  * the mm components of a GVT device.
  *
  */

drivers/gpu/drm/i915/gvt/gvt.h

@@ -227,8 +227,6 @@ struct intel_vgpu {
 	unsigned long nr_cache_entries;
 	struct mutex cache_lock;
 
-	atomic_t released;
-
 	struct kvm_page_track_notifier_node track_node;
 #define NR_BKT (1 << 18)
 	struct hlist_head ptable[NR_BKT];

drivers/gpu/drm/i915/gvt/kvmgt.c

@@ -684,7 +684,6 @@ static int intel_vgpu_open_device(struct vfio_device *vfio_dev)
 
 	intel_gvt_activate_vgpu(vgpu);
 
-	atomic_set(&vgpu->released, 0);
 	return 0;
 }
 
@@ -706,9 +705,6 @@ static void intel_vgpu_close_device(struct vfio_device *vfio_dev)
 	if (!vgpu->attached)
 		return;
 
-	if (atomic_cmpxchg(&vgpu->released, 0, 1))
-		return;
-
 	intel_gvt_release_vgpu(vgpu);
 
 	debugfs_remove(debugfs_lookup(KVMGT_DEBUGFS_FILENAME, vgpu->debugfs));

drivers/gpu/drm/i915/gvt/page_track.c

@@ -120,7 +120,7 @@ int intel_vgpu_enable_page_track(struct intel_vgpu *vgpu, unsigned long gfn)
 }
 
 /**
- * intel_vgpu_enable_page_track - cancel write-protection on guest page
+ * intel_vgpu_disable_page_track - cancel write-protection on guest page
  * @vgpu: a vGPU
  * @gfn: the gfn of guest page
  *

drivers/gpu/drm/i915/gvt/vgpu.c

@@ -158,7 +158,7 @@ void intel_gvt_clean_vgpu_types(struct intel_gvt *gvt)
 }
 
 /**
- * intel_gvt_active_vgpu - activate a virtual GPU
+ * intel_gvt_activate_vgpu - activate a virtual GPU
  * @vgpu: virtual GPU
  *
  * This function is called when user wants to activate a virtual GPU.
@@ -172,7 +172,7 @@ void intel_gvt_activate_vgpu(struct intel_vgpu *vgpu)
 }
 
 /**
- * intel_gvt_deactive_vgpu - deactivate a virtual GPU
+ * intel_gvt_deactivate_vgpu - deactivate a virtual GPU
  * @vgpu: virtual GPU
  *
  * This function is called when user wants to deactivate a virtual GPU.
@@ -295,7 +295,7 @@ struct intel_vgpu *intel_gvt_create_idle_vgpu(struct intel_gvt *gvt)
 }
 
 /**
- * intel_gvt_destroy_vgpu - destroy an idle virtual GPU
+ * intel_gvt_destroy_idle_vgpu - destroy an idle virtual GPU
  * @vgpu: virtual GPU
  *
  * This function is called when user wants to destroy an idle virtual GPU.