Message-ID: <CADnq5_PXWgnQ11ZSxqwa122w8cAYGL476uc65nddhQGsnYYUOA@mail.gmail.com>
Date:   Mon, 30 Nov 2020 17:29:39 -0500
From:   Alex Deucher <alexdeucher@...il.com>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     David Airlie <airlied@...ux.ie>,
        LKML <linux-kernel@...r.kernel.org>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        Christian König <christian.koenig@....com>,
        "moderated list:DMA BUFFER SHARING FRAMEWORK" 
        <linaro-mm-sig@...ts.linaro.org>,
        Maling list - DRI developers 
        <dri-devel@...ts.freedesktop.org>,
        Alex Deucher <alexander.deucher@....com>,
        linux-media <linux-media@...r.kernel.org>
Subject: Re: [PATCH 21/40] drm/amd/amdgpu/sdma_v4_0: Repair a bunch of
 kernel-doc problems

On Tue, Nov 24, 2020 at 2:45 PM Lee Jones <lee.jones@...aro.org> wrote:
>
> Fixes the following W=1 kernel build warning(s):
>
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:848: warning: Function parameter or member 'job' not described in 'sdma_v4_0_ring_emit_ib'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:848: warning: Function parameter or member 'flags' not described in 'sdma_v4_0_ring_emit_ib'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:923: warning: Function parameter or member 'addr' not described in 'sdma_v4_0_ring_emit_fence'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:923: warning: Function parameter or member 'seq' not described in 'sdma_v4_0_ring_emit_fence'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:923: warning: Function parameter or member 'flags' not described in 'sdma_v4_0_ring_emit_fence'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:923: warning: Excess function parameter 'fence' description in 'sdma_v4_0_ring_emit_fence'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:1117: warning: Function parameter or member 'ring' not described in 'sdma_v4_0_rb_cntl'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:1117: warning: Function parameter or member 'rb_cntl' not described in 'sdma_v4_0_rb_cntl'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:1581: warning: Function parameter or member 'timeout' not described in 'sdma_v4_0_ring_test_ib'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:1682: warning: Function parameter or member 'value' not described in 'sdma_v4_0_vm_write_pte'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:1682: warning: Excess function parameter 'addr' description in 'sdma_v4_0_vm_write_pte'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:1682: warning: Excess function parameter 'flags' description in 'sdma_v4_0_vm_write_pte'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:1734: warning: Function parameter or member 'ring' not described in 'sdma_v4_0_ring_pad_ib'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:1782: warning: Function parameter or member 'vmid' not described in 'sdma_v4_0_ring_emit_vm_flush'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:1782: warning: Function parameter or member 'pd_addr' not described in 'sdma_v4_0_ring_emit_vm_flush'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:1782: warning: Excess function parameter 'vm' description in 'sdma_v4_0_ring_emit_vm_flush'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:2508: warning: Function parameter or member 'ib' not described in 'sdma_v4_0_emit_copy_buffer'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:2508: warning: Function parameter or member 'tmz' not described in 'sdma_v4_0_emit_copy_buffer'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:2508: warning: Excess function parameter 'ring' description in 'sdma_v4_0_emit_copy_buffer'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:2534: warning: Function parameter or member 'ib' not described in 'sdma_v4_0_emit_fill_buffer'
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:2534: warning: Excess function parameter 'ring' description in 'sdma_v4_0_emit_fill_buffer'
>
> Cc: Alex Deucher <alexander.deucher@....com>
> Cc: "Christian König" <christian.koenig@....com>
> Cc: David Airlie <airlied@...ux.ie>
> Cc: Daniel Vetter <daniel@...ll.ch>
> Cc: Sumit Semwal <sumit.semwal@...aro.org>
> Cc: amd-gfx@...ts.freedesktop.org
> Cc: dri-devel@...ts.freedesktop.org
> Cc: linux-media@...r.kernel.org
> Cc: linaro-mm-sig@...ts.linaro.org
> Signed-off-by: Lee Jones <lee.jones@...aro.org>

Applied with minor fixes.  Thanks!

Alex

> ---
>  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 22 ++++++++++++++--------
>  1 file changed, 14 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
> index dc74ca2aa8926..512efb31cc9fe 100644
> --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
> @@ -837,7 +837,9 @@ static void sdma_v4_0_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
>   * sdma_v4_0_ring_emit_ib - Schedule an IB on the DMA engine
>   *
>   * @ring: amdgpu ring pointer
> + * @job: job to retrive vmid from
>   * @ib: IB object to schedule
> + * @flags: unused
>   *
>   * Schedule an IB in the DMA ring (VEGA10).
>   */
> @@ -912,7 +914,9 @@ static void sdma_v4_0_ring_emit_hdp_flush(struct amdgpu_ring *ring)
>   * sdma_v4_0_ring_emit_fence - emit a fence on the DMA ring
>   *
>   * @ring: amdgpu ring pointer
> - * @fence: amdgpu fence object
> + * @addr: address
> + * @seq: sequence number
> + * @flags: fence related flags
>   *
>   * Add a DMA fence packet to the ring to write
>   * the fence seq number and DMA trap packet to generate
> @@ -1110,7 +1114,7 @@ static void sdma_v4_0_enable(struct amdgpu_device *adev, bool enable)
>         }
>  }
>
> -/**
> +/*
>   * sdma_v4_0_rb_cntl - get parameters for rb_cntl
>   */
>  static uint32_t sdma_v4_0_rb_cntl(struct amdgpu_ring *ring, uint32_t rb_cntl)
> @@ -1573,6 +1577,7 @@ static int sdma_v4_0_ring_test_ring(struct amdgpu_ring *ring)
>   * sdma_v4_0_ring_test_ib - test an IB on the DMA engine
>   *
>   * @ring: amdgpu_ring structure holding ring information
> + * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT
>   *
>   * Test a simple IB in the DMA ring (VEGA10).
>   * Returns 0 on success, error on failure.
> @@ -1669,10 +1674,9 @@ static void sdma_v4_0_vm_copy_pte(struct amdgpu_ib *ib,
>   *
>   * @ib: indirect buffer to fill with commands
>   * @pe: addr of the page entry
> - * @addr: dst addr to write into pe
> + * @value: dst addr to write into pe
>   * @count: number of page entries to update
>   * @incr: increase next addr by incr bytes
> - * @flags: access flags
>   *
>   * Update PTEs by writing them manually using sDMA (VEGA10).
>   */
> @@ -1727,8 +1731,8 @@ static void sdma_v4_0_vm_set_pte_pde(struct amdgpu_ib *ib,
>  /**
>   * sdma_v4_0_ring_pad_ib - pad the IB to the required number of dw
>   *
> + * @ring: amdgpu_ring structure holding ring information
>   * @ib: indirect buffer to fill with padding
> - *
>   */
>  static void sdma_v4_0_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
>  {
> @@ -1772,7 +1776,8 @@ static void sdma_v4_0_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
>   * sdma_v4_0_ring_emit_vm_flush - vm flush using sDMA
>   *
>   * @ring: amdgpu_ring pointer
> - * @vm: amdgpu_vm pointer
> + * @vmid: vmid number to use
> + * @pd_addr: address
>   *
>   * Update the page table base and flush the VM TLB
>   * using sDMA (VEGA10).
> @@ -2491,10 +2496,11 @@ static void sdma_v4_0_set_irq_funcs(struct amdgpu_device *adev)
>  /**
>   * sdma_v4_0_emit_copy_buffer - copy buffer using the sDMA engine
>   *
> - * @ring: amdgpu_ring structure holding ring information
> + * @ib: indirect buffer to copy to
>   * @src_offset: src GPU address
>   * @dst_offset: dst GPU address
>   * @byte_count: number of bytes to xfer
> + * @tmz: if a secure copy should be used
>   *
>   * Copy GPU buffers using the DMA engine (VEGA10/12).
>   * Used by the amdgpu ttm implementation to move pages if
> @@ -2520,7 +2526,7 @@ static void sdma_v4_0_emit_copy_buffer(struct amdgpu_ib *ib,
>  /**
>   * sdma_v4_0_emit_fill_buffer - fill buffer using the sDMA engine
>   *
> - * @ring: amdgpu_ring structure holding ring information
> + * @ib: indirect buffer to copy to
>   * @src_data: value to write to buffer
>   * @dst_offset: dst GPU address
>   * @byte_count: number of bytes to xfer
> --
> 2.25.1
>
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> dri-devel mailing list
> dri-devel@...ts.freedesktop.org
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