drm/i915/gvt: Fix function comment doc errors

Caught by W=1 to fix left wrong function comment doc.
Reviewed-by: NHang Yuan <hang.yuan@intel.com>
Signed-off-by: NZhenyu Wang <zhenyuw@linux.intel.com>

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

@@ -56,6 +56,10 @@ static const u8 pci_cfg_space_rw_bmp[PCI_INTERRUPT_LINE + 4] = {
 
 /**
  * vgpu_pci_cfg_mem_write - write virtual cfg space memory
+ * @vgpu: target vgpu
+ * @off: offset
+ * @src: src ptr to write
+ * @bytes: number of bytes
  *
  * Use this function to write virtual cfg space memory.
  * For standard cfg space, only RW bits can be changed,
@@ -91,6 +95,10 @@ static void vgpu_pci_cfg_mem_write(struct intel_vgpu *vgpu, unsigned int off,
 
 /**
  * intel_vgpu_emulate_cfg_read - emulate vGPU configuration space read
+ * @vgpu: target vgpu
+ * @offset: offset
+ * @p_data: return data ptr
+ * @bytes: number of bytes to read
  *
  * Returns:
  * Zero on success, negative error code if failed.
@@ -278,6 +286,10 @@ static int emulate_pci_bar_write(struct intel_vgpu *vgpu, unsigned int offset,
 
 /**
  * intel_vgpu_emulate_cfg_read - emulate vGPU configuration space write
+ * @vgpu: target vgpu
+ * @offset: offset
+ * @p_data: write data ptr
+ * @bytes: number of bytes to write
  *
  * Returns:
  * Zero on success, negative error code if failed.

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

@@ -462,6 +462,7 @@ void intel_vgpu_clean_display(struct intel_vgpu *vgpu)
 /**
  * intel_vgpu_init_display- initialize vGPU virtual display emulation
  * @vgpu: a vGPU
+ * @resolution: resolution index for intel_vgpu_edid
  *
  * This function is used to initialize vGPU virtual display emulation stuffs
  *

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

@@ -340,6 +340,9 @@ static int gmbus2_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
 /**
  * intel_gvt_i2c_handle_gmbus_read - emulate gmbus register mmio read
  * @vgpu: a vGPU
+ * @offset: reg offset
+ * @p_data: data return buffer
+ * @bytes: access data length
  *
  * This function is used to emulate gmbus register mmio read
  *
@@ -365,6 +368,9 @@ int intel_gvt_i2c_handle_gmbus_read(struct intel_vgpu *vgpu,
 /**
  * intel_gvt_i2c_handle_gmbus_write - emulate gmbus register mmio write
  * @vgpu: a vGPU
+ * @offset: reg offset
+ * @p_data: data return buffer
+ * @bytes: access data length
  *
  * This function is used to emulate gmbus register mmio write
  *
@@ -437,6 +443,9 @@ static inline int get_aux_ch_reg(unsigned int offset)
 /**
  * intel_gvt_i2c_handle_aux_ch_write - emulate AUX channel register write
  * @vgpu: a vGPU
+ * @port_idx: port index
+ * @offset: reg offset
+ * @p_data: write ptr
  *
  * This function is used to emulate AUX channel register write
  *

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

@@ -1113,6 +1113,10 @@ static inline void ppgtt_generate_shadow_entry(struct intel_gvt_gtt_entry *se,
 }
 
 /**
+ * Check if can do 2M page
+ * @vgpu: target vgpu
+ * @entry: target pfn's gtt entry
+ *
  * Return 1 if 2MB huge gtt shadowing is possilbe, 0 if miscondition,
  * negtive if found err.
  */
@@ -1942,7 +1946,7 @@ void intel_vgpu_unpin_mm(struct intel_vgpu_mm *mm)
 
 /**
  * intel_vgpu_pin_mm - increase the pin count of a vGPU mm object
- * @vgpu: a vGPU
+ * @mm: target vgpu mm
  *
  * This function is called when user wants to use a vGPU mm object. If this
  * mm object hasn't been shadowed yet, the shadow will be populated at this
@@ -2462,8 +2466,7 @@ static int setup_spt_oos(struct intel_gvt *gvt)
 /**
  * intel_vgpu_find_ppgtt_mm - find a PPGTT mm object
  * @vgpu: a vGPU
- * @page_table_level: PPGTT page table level
- * @root_entry: PPGTT page table root pointers
+ * @pdps: pdp root array
  *
  * This function is used to find a PPGTT mm object from mm object pool
  *

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

@@ -188,7 +188,6 @@ static const struct intel_gvt_ops intel_gvt_ops = {
 
 /**
  * intel_gvt_init_host - Load MPT modules and detect if we're running in host
- * @gvt: intel gvt device
  *
  * This function is called at the driver loading stage. If failed to find a
  * loadable MPT module or detect currently we're running in a VM, then GVT-g
@@ -302,7 +301,7 @@ static int init_service_thread(struct intel_gvt *gvt)
 
 /**
  * intel_gvt_clean_device - clean a GVT device
- * @gvt: intel gvt device
+ * @dev_priv: i915 private
  *
  * This function is called at the driver unloading stage, to free the
  * resources owned by a GVT device.

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

@@ -3405,6 +3405,7 @@ bool intel_gvt_in_force_nonpriv_whitelist(struct intel_gvt *gvt,
  * @offset: register offset
  * @pdata: data buffer
  * @bytes: data length
+ * @is_read: read or write
  *
  * Returns:
  * Zero on success, negative error code if failed.

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

@@ -39,6 +39,7 @@
 /**
  * intel_vgpu_gpa_to_mmio_offset - translate a GPA to MMIO offset
  * @vgpu: a vGPU
+ * @gpa: guest physical address
  *
  * Returns:
  * Zero on success, negative error code if failed
@@ -228,7 +229,7 @@ int intel_vgpu_emulate_mmio_write(struct intel_vgpu *vgpu, uint64_t pa,
 /**
  * intel_vgpu_reset_mmio - reset virtual MMIO space
  * @vgpu: a vGPU
- *
+ * @dmlr: whether this is device model level reset
  */
 void intel_vgpu_reset_mmio(struct intel_vgpu *vgpu, bool dmlr)
 {

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

@@ -216,7 +216,6 @@ static void virt_vbt_generation(struct vbt *v)
 /**
  * intel_vgpu_init_opregion - initialize the stuff used to emulate opregion
  * @vgpu: a vGPU
- * @gpa: guest physical address of opregion
  *
  * Returns:
  * Zero on success, negative error code if failed.

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

@@ -41,6 +41,8 @@ struct intel_vgpu_page_track *intel_vgpu_find_page_track(
  * intel_vgpu_register_page_track - register a guest page to be tacked
  * @vgpu: a vGPU
  * @gfn: the gfn of guest page
+ * @handler: page track handler
+ * @priv: tracker private
  *
  * Returns:
  * zero on success, negative error code if failed.

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

@@ -1135,6 +1135,7 @@ int intel_vgpu_setup_submission(struct intel_vgpu *vgpu)
 /**
  * intel_vgpu_select_submission_ops - select virtual submission interface
  * @vgpu: a vGPU
+ * @engine_mask: either ALL_ENGINES or target engine mask
  * @interface: expected vGPU virtual submission interface
  *
  * This function is called when guest configures submission interface.
@@ -1187,7 +1188,7 @@ int intel_vgpu_select_submission_ops(struct intel_vgpu *vgpu,
 
 /**
  * intel_vgpu_destroy_workload - destroy a vGPU workload
- * @vgpu: a vGPU
+ * @workload: workload to destroy
  *
  * This function is called when destroy a vGPU workload.
  *
@@ -1279,6 +1280,7 @@ static int prepare_mm(struct intel_vgpu_workload *workload)
 /**
  * intel_vgpu_create_workload - create a vGPU workload
  * @vgpu: a vGPU
+ * @ring_id: ring index
  * @desc: a guest context descriptor
  *
  * This function is called when creating a vGPU workload.