linux-kernel - Re: [PATCH 2/5] drm/msm/a6xx: Add support for Adreno 623

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Message-ID: <4a3eec8a-4f71-4ac7-a6e6-0e8490c020bc@oss.qualcomm.com>
Date: Thu, 13 Feb 2025 18:21:42 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Akhil P Oommen <quic_akhilpo@...cinc.com>,
        Rob Clark
 <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Jie Zhang <quic_jiezh@...cinc.com>
Subject: Re: [PATCH 2/5] drm/msm/a6xx: Add support for Adreno 623

On 13.02.2025 5:10 PM, Akhil P Oommen wrote:
> From: Jie Zhang <quic_jiezh@...cinc.com>
> 
> Add support for Adreno 623 GPU found in QCS8300 chipsets.
> 
> Signed-off-by: Jie Zhang <quic_jiezh@...cinc.com>
> Signed-off-by: Akhil P Oommen <quic_akhilpo@...cinc.com>
> ---
>  drivers/gpu/drm/msm/adreno/a6xx_catalog.c   | 29 +++++++++++++++++++++++++++++
>  drivers/gpu/drm/msm/adreno/a6xx_gpu.c       |  8 ++++++++
>  drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c |  2 +-
>  drivers/gpu/drm/msm/adreno/adreno_gpu.h     |  5 +++++
>  4 files changed, 43 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_catalog.c b/drivers/gpu/drm/msm/adreno/a6xx_catalog.c
> index edffb7737a97..ac156c8b5af9 100644
> --- a/drivers/gpu/drm/msm/adreno/a6xx_catalog.c
> +++ b/drivers/gpu/drm/msm/adreno/a6xx_catalog.c
> @@ -879,6 +879,35 @@ static const struct adreno_info a6xx_gpus[] = {
>  			{ 0, 0 },
>  			{ 137, 1 },
>  		),
> +	}, {
> +		.chip_ids = ADRENO_CHIP_IDS(0x06020300),
> +		.family = ADRENO_6XX_GEN3,
> +		.fw = {
> +			[ADRENO_FW_SQE] = "a650_sqe.fw",
> +			[ADRENO_FW_GMU] = "a623_gmu.bin",
> +		},
> +		.gmem = SZ_512K,
> +		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
> +		.quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT |
> +			ADRENO_QUIRK_HAS_HW_APRIV,
> +		.init = a6xx_gpu_init,
> +		.a6xx = &(const struct a6xx_info) {
> +			.hwcg = a620_hwcg,

On downstream a663 hwcg table is used, with the following differences:

< A620
> A663

< {REG_A6XX_RBBM_CLOCK_CNTL_TP0, 0x02222222},
> {REG_A6XX_RBBM_CLOCK_CNTL_TP0, 0x22222222},

< {REG_A6XX_RBBM_CLOCK_HYST_TEX_FCHE, 0x00000777},
> {REG_A6XX_RBBM_CLOCK_HYST_TEX_FCHE, 0x00000000}

Konrad