[PATCH 147/159] drm/amdgpu: restore aldebaran save ttmp and trap config on init (v2)

[Felix Kuehling]

This patch is for the debugger functionality that's not on 
amd-staging-drm-next yet. You can probably drop this patch for now.

Regards,
   Felix

On 2021-02-24 5:18 p.m., Alex Deucher wrote:
> From: Jonathan Kim <Jonathan.Kim at amd.com>
>
> Initialization of TRAP_DATA0/1 is still required for the debugger to detect
> new waves on Aldebaran.  Also, per-vmid global trap enablement may be
> required outside of debugger scope so move to init phase.
>
> v2: just add the gfx 9.4.2 changes (Alex)
>
> Signed-off-by: Jonathan Kim <Jonathan.Kim at amd.com>
> Reviewed-by: Felix Kuehling <Felix.Kuehling at amd.com>
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/Makefile     |  1 +
>   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c   |  1 +
>   drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c | 50 +++++++++++++++++++++++++
>   drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.h | 30 +++++++++++++++
>   4 files changed, 82 insertions(+)
>   create mode 100644 drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c
>   create mode 100644 drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.h
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
> index c5ec926bc6d5..741b68874e53 100644
> --- a/drivers/gpu/drm/amd/amdgpu/Makefile
> +++ b/drivers/gpu/drm/amd/amdgpu/Makefile
> @@ -123,6 +123,7 @@ amdgpu-y += \
>   	gfx_v8_0.o \
>   	gfx_v9_0.o \
>   	gfx_v9_4.o \
> +	gfx_v9_4_2.o \
>   	gfx_v10_0.o
>   
>   # add async DMA block
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> index 5bac5659e707..78bb4e28c27c 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> @@ -49,6 +49,7 @@
>   
>   #include "gfx_v9_4.h"
>   #include "gfx_v9_0.h"
> +#include "gfx_v9_4_2.h"
>   
>   #include "asic_reg/pwr/pwr_10_0_offset.h"
>   #include "asic_reg/pwr/pwr_10_0_sh_mask.h"
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c
> new file mode 100644
> index 000000000000..0c2ccbe327ab
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c
> @@ -0,0 +1,50 @@
> +/*
> + * Copyright 2020 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"
> +#include "soc15.h"
> +
> +#include "gc/gc_9_4_2_offset.h"
> +#include "gc/gc_9_4_2_sh_mask.h"
> +
> +void gfx_v9_4_2_debug_trap_config_init(struct amdgpu_device *adev,
> +				uint32_t first_vmid,
> +				uint32_t last_vmid)
> +{
> +	uint32_t data;
> +	int i;
> +
> +	mutex_lock(&adev->srbm_mutex);
> +
> +	for (i = first_vmid; i < last_vmid; i++) {
> +		data = 0;
> +		soc15_grbm_select(adev, 0, 0, 0, i);
> +		data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, TRAP_EN, 1);
> +		data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_EN, 0);
> +		data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_REPLACE,
> +					0);
> +		WREG32(SOC15_REG_OFFSET(GC, 0, regSPI_GDBG_PER_VMID_CNTL), data);
> +	}
> +
> +	soc15_grbm_select(adev, 0, 0, 0, 0);
> +	mutex_unlock(&adev->srbm_mutex);
> +}
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.h b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.h
> new file mode 100644
> index 000000000000..5b175c10de23
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.h
> @@ -0,0 +1,30 @@
> +/*
> + * Copyright 2020 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.
> + *
> + */
> +
> +#ifndef __GFX_V9_4_2_H__
> +#define __GFX_V9_4_2_H__
> +
> +void gfx_v9_4_2_debug_trap_config_init(struct amdgpu_device *adev,
> +				uint32_t first_vmid, uint32_t last_vmid);
> +
> +#endif /* __GFX_V9_4_2_H__ */