[PATCH 7/7] drm/amdgpu: Use new doorbell layout for vega20 and future asic
Alex Deucher
alexdeucher at gmail.com
Wed Nov 21 16:39:02 UTC 2018
On Wed, Nov 21, 2018 at 11:37 AM Zeng, Oak <Oak.Zeng at amd.com> wrote:
>
> >No need to add a new file for this. Just add this to vega20_reg_init.c.
> Agreed.
>
> >Also, please use the doorbell enums rather than hardcoding the numbers.
> Ok. Where should I put the doorbell enums for vega20? In amdgpu.h or in vega20_reg_init.c?
Maybe add amdgpu_doorbell.h and move all of the enums there?
Alex
>
> thanks,
> Oak
>
> -----Original Message-----
> From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Alex Deucher
> Sent: Wednesday, November 21, 2018 11:22 AM
> To: Zeng, Oak <Oak.Zeng at amd.com>
> Cc: Zeng, Oak <Oak.Zeng at amd.com>; amd-gfx list <amd-gfx at lists.freedesktop.org>
> Subject: Re: [PATCH 7/7] drm/amdgpu: Use new doorbell layout for vega20 and future asic
>
> On Wed, Nov 21, 2018 at 10:52 AM Oak Zeng <ozeng at amd.com> wrote:
> >
> > Change-Id: I04d22fb717ac50483c0835f160a2e860e344f358
> > 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>
> > ---
> > drivers/gpu/drm/amd/amdgpu/Makefile | 4 +-
> > drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 +-
> > drivers/gpu/drm/amd/amdgpu/soc15.h | 1 +
> > .../drm/amd/amdgpu/vega20_doorbell_index_init.c | 64 ++++++++++++++++++++++
> > 4 files changed, 70 insertions(+), 3 deletions(-) create mode 100644
> > drivers/gpu/drm/amd/amdgpu/vega20_doorbell_index_init.c
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile
> > b/drivers/gpu/drm/amd/amdgpu/Makefile
> > index 3ab8eba..b3b150b 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/Makefile
> > +++ b/drivers/gpu/drm/amd/amdgpu/Makefile
> > @@ -63,8 +63,8 @@ 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 vega10_doorbell_index_init.o vega12_doorbell_index_init.o \
> > - vi_doorbell_index_init.o
> > + vega20_reg_init.o nbio_v7_4.o vi_doorbell_index_init.o vega10_doorbell_index_init.o \
> > + vega12_doorbell_index_init.o vega20_doorbell_index_init.o
> >
> > # add DF block
> > amdgpu-y += \
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> > b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> > index 3ffd8f5..19f2149 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> > @@ -517,8 +517,10 @@ static int amdgpu_device_doorbell_init(struct amdgpu_device *adev)
> > vi_doorbell_index_init(adev);
> > else if (adev->asic_type == CHIP_VEGA10)
> > vega10_doorbell_index_init(adev);
> > - else
> > + else if (adev->asic_type == CHIP_VEGA12 || adev->asic_type ==
> > + CHIP_RAVEN)
> > vega12_doorbell_index_init(adev);
> > + else
> > + vega20_doorbell_index_init(adev);
> >
> > /* No doorbell on SI hardware generation */
> > if (adev->asic_type < CHIP_BONAIRE) { diff --git
> > a/drivers/gpu/drm/amd/amdgpu/soc15.h
> > b/drivers/gpu/drm/amd/amdgpu/soc15.h
> > index 939c0e8..6ba0d26 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/soc15.h
> > +++ b/drivers/gpu/drm/amd/amdgpu/soc15.h
> > @@ -60,4 +60,5 @@ int vega20_reg_base_init(struct amdgpu_device
> > *adev);
> >
> > void vega10_doorbell_index_init(struct amdgpu_device *adev); void
> > vega12_doorbell_index_init(struct amdgpu_device *adev);
> > +void vega20_doorbell_index_init(struct amdgpu_device *adev);
> > #endif
> > diff --git a/drivers/gpu/drm/amd/amdgpu/vega20_doorbell_index_init.c
> > b/drivers/gpu/drm/amd/amdgpu/vega20_doorbell_index_init.c
> > new file mode 100644
> > index 0000000..dcaef7f
> > --- /dev/null
> > +++ b/drivers/gpu/drm/amd/amdgpu/vega20_doorbell_index_init.c
> > @@ -0,0 +1,64 @@
> > +/*
> > + * 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 vega20_doorbell_index_init(struct amdgpu_device *adev) {
> > + /* Compute + GFX: 0~255 */
> > + adev->doorbell_index.kiq = 0x00;
> > + adev->doorbell_index.mec_ring0 = 0x03;
> > + adev->doorbell_index.mec_ring1 = 0x04;
> > + adev->doorbell_index.mec_ring2 = 0x05;
> > + adev->doorbell_index.mec_ring3 = 0x06;
> > + adev->doorbell_index.mec_ring4 = 0x07;
> > + adev->doorbell_index.mec_ring5 = 0x08;
> > + adev->doorbell_index.mec_ring6 = 0x09;
> > + adev->doorbell_index.mec_ring7 = 0x0a;
> > + adev->doorbell_index.userqueue_start = 0x0b;
> > + adev->doorbell_index.userqueue_end = 0x8a;
> > + adev->doorbell_index.gfx_ring0 = 0x8b;
> > + /* SDMA:256~335*/
> > + adev->doorbell_index.sdma_engine0 = 0x100;
> > + adev->doorbell_index.sdma_engine1 = 0x10a;
> > + adev->doorbell_index.sdma_engine2 = 0x114;
> > + adev->doorbell_index.sdma_engine3 = 0x11e;
> > + adev->doorbell_index.sdma_engine4 = 0x128;
> > + adev->doorbell_index.sdma_engine5 = 0x132;
> > + adev->doorbell_index.sdma_engine6 = 0x13C;
> > + adev->doorbell_index.sdma_engine7 = 0x146;
> > + /* IH: 376~391 */
> > + adev->doorbell_index.ih = 0x178;
> > + /* MMSCH: 392~407 */
> > + adev->doorbell_index.uvd_vce.uvd_ring0_1 = 0x188;
> > + adev->doorbell_index.uvd_vce.uvd_ring2_3 = 0x189;
> > + adev->doorbell_index.uvd_vce.uvd_ring4_5 = 0x18a;
> > + adev->doorbell_index.uvd_vce.uvd_ring6_7 = 0x18b;
> > + adev->doorbell_index.uvd_vce.vce_ring0_1 = 0x18c;
> > + adev->doorbell_index.uvd_vce.vce_ring2_3 = 0x18d;
> > + adev->doorbell_index.uvd_vce.vce_ring4_5 = 0x18e;
> > + adev->doorbell_index.uvd_vce.vce_ring6_7 = 0x18f;
> > + /* In unit of dword doorbell */
> > + adev->doorbell_index.max_assignment = 0x18f << 1; }
>
> No need to add a new file for this. Just add this to vega20_reg_init.c. Also, please use the doorbell enums rather than hardcoding the numbers.
>
> Alex
>
> > +
> > --
> > 2.7.4
> >
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