[PATCH 4/7] drm/amdgpu: Doorbell index initialization for ASICs before vega10

[Zeng, Oak]

Ok, I can change it legacy_doorbell_index_init(). I will keep this function in vi.c. The reason I don't want to put it in cik.c is cik.c is only compiled optionally. 

Another thing I want to know is, my understanding is si doesn't use doorbell, does it?

thanks,
Oak

-----Original Message-----
From: Alex Deucher <alexdeucher at gmail.com> 
Sent: Sunday, November 25, 2018 1:46 PM
To: Zeng, Oak <Oak.Zeng at amd.com>
Subject: Fwd: [PATCH 4/7] drm/amdgpu: Doorbell index initialization for ASICs before vega10

---------- Forwarded message ---------
From: Alex Deucher <alexdeucher at gmail.com>
Date: Wed, Nov 21, 2018 at 5:40 PM
Subject: Re: [PATCH 4/7] drm/amdgpu: Doorbell index initialization for ASICs before vega10
To: <ozeng at amd.com>
Cc: amd-gfx list <amd-gfx at lists.freedesktop.org>, Oak Zeng <Oak.Zeng at amd.com>


On Wed, Nov 21, 2018 at 5:00 PM Oak Zeng <ozeng at amd.com> wrote:
>
> v2: Use enum definition instead of hardcoded number
>
> Change-Id: Id64eb98f5b1c24b51eb2fd5a083086fc3515813d
> Signed-off-by: Oak Zeng <ozeng at amd.com>
> Suggested-by: Felix Kuehling <Felix.Kuehling at amd.com>
> Suggested-by: Alex Deucher <alexander.deucher at amd.com>

Since this covers cik and vi, maybe call it cik_doorbell_index_init() or legacy_doorbell_index_init()?

Alex

> ---
>  drivers/gpu/drm/amd/amdgpu/Makefile      |  2 +-
>  drivers/gpu/drm/amd/amdgpu/vi.h          |  2 +-
>  drivers/gpu/drm/amd/amdgpu/vi_reg_init.c | 43 
> ++++++++++++++++++++++++++++++++
>  3 files changed, 45 insertions(+), 2 deletions(-)  create mode 100644 
> drivers/gpu/drm/amd/amdgpu/vi_reg_init.c
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile 
> b/drivers/gpu/drm/amd/amdgpu/Makefile
> index 1cef9e1..ae29bf5 100644
> --- a/drivers/gpu/drm/amd/amdgpu/Makefile
> +++ b/drivers/gpu/drm/amd/amdgpu/Makefile
> @@ -63,7 +63,7 @@ amdgpu-$(CONFIG_DRM_AMDGPU_SI)+= si.o gmc_v6_0.o 
> gfx_v6_0.o si_ih.o si_dma.o dce
>
>  amdgpu-y += \
>         vi.o mxgpu_vi.o nbio_v6_1.o soc15.o emu_soc.o mxgpu_ai.o nbio_v7_0.o vega10_reg_init.o \
> -       vega20_reg_init.o nbio_v7_4.o vega12_reg_init.o
> +       vega20_reg_init.o nbio_v7_4.o vega12_reg_init.o vi_reg_init.o
>
>  # add DF block
>  amdgpu-y += \
> diff --git a/drivers/gpu/drm/amd/amdgpu/vi.h 
> b/drivers/gpu/drm/amd/amdgpu/vi.h index 0429fe3..abcb52e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/vi.h
> +++ b/drivers/gpu/drm/amd/amdgpu/vi.h
> @@ -29,5 +29,5 @@
>  void vi_srbm_select(struct amdgpu_device *adev,
>                     u32 me, u32 pipe, u32 queue, u32 vmid);  int 
> vi_set_ip_blocks(struct amdgpu_device *adev);
> -
> +void vi_doorbell_index_init(struct amdgpu_device *adev);
>  #endif
> diff --git a/drivers/gpu/drm/amd/amdgpu/vi_reg_init.c 
> b/drivers/gpu/drm/amd/amdgpu/vi_reg_init.c
> new file mode 100644
> index 0000000..cdeb88d
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/amdgpu/vi_reg_init.c
> @@ -0,0 +1,43 @@
> +/*
> + * Copyright 2018 Advanced Micro Devices, Inc.
> + *
> + * Permission is hereby granted, free of charge, to any person 
> +obtaining a
> + * copy of this software and associated documentation files (the 
> +"Software"),
> + * to deal in the Software without restriction, including without 
> +limitation
> + * the rights to use, copy, modify, merge, publish, distribute, 
> +sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom 
> +the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be 
> +included in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
> +EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
> +MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT 
> +SHALL
> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, 
> +DAMAGES OR
> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
> +OTHERWISE,
> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE 
> +OR
> + * OTHER DEALINGS IN THE SOFTWARE.
> + *
> + */
> +
> +#include "amdgpu.h"
> +
> +void vi_doorbell_index_init(struct amdgpu_device *adev) {
> +       adev->doorbell_index.kiq = AMDGPU_DOORBELL_KIQ;
> +       adev->doorbell_index.mec_ring0 = AMDGPU_DOORBELL_MEC_RING0;
> +       adev->doorbell_index.mec_ring1 = AMDGPU_DOORBELL_MEC_RING1;
> +       adev->doorbell_index.mec_ring2 = AMDGPU_DOORBELL_MEC_RING2;
> +       adev->doorbell_index.mec_ring3 = AMDGPU_DOORBELL_MEC_RING3;
> +       adev->doorbell_index.mec_ring4 = AMDGPU_DOORBELL_MEC_RING4;
> +       adev->doorbell_index.mec_ring5 = AMDGPU_DOORBELL_MEC_RING5;
> +       adev->doorbell_index.mec_ring6 = AMDGPU_DOORBELL_MEC_RING6;
> +       adev->doorbell_index.mec_ring7 = AMDGPU_DOORBELL_MEC_RING7;
> +       adev->doorbell_index.gfx_ring0 = AMDGPU_DOORBELL_GFX_RING0;
> +       adev->doorbell_index.sdma_engine0 = AMDGPU_DOORBELL_sDMA_ENGINE0;
> +       adev->doorbell_index.sdma_engine1 = AMDGPU_DOORBELL_sDMA_ENGINE1;
> +       adev->doorbell_index.ih = AMDGPU_DOORBELL_IH;
> +       adev->doorbell_index.max_assignment = 
> +AMDGPU_DOORBELL_MAX_ASSIGNMENT; }
> +
> --
> 2.7.4
>
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