Re: [PATCH 3/5] drm/msm/a6xx: Store gmu_cgc_mode in struct a6xx_info

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On Fri, Jul 19, 2024 at 3:03 AM Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> wrote:
>
> This was apparently almost never set on a6xx.. move the existing values
> and fill out the remaining ones within the catalog.
>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
> ---
>  drivers/gpu/drm/msm/adreno/a6xx_catalog.c | 19 ++++++++++++++++++-
>  drivers/gpu/drm/msm/adreno/a6xx_gpu.c     |  6 ++----
>  drivers/gpu/drm/msm/adreno/a6xx_gpu.h     |  1 +
>  3 files changed, 21 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_catalog.c b/drivers/gpu/drm/msm/adreno/a6xx_catalog.c
> index 1ea535960f32..deee0b686962 100644
> --- a/drivers/gpu/drm/msm/adreno/a6xx_catalog.c
> +++ b/drivers/gpu/drm/msm/adreno/a6xx_catalog.c
> @@ -448,7 +448,6 @@ static const struct adreno_reglist a690_hwcg[] = {
>         {REG_A6XX_RBBM_CLOCK_CNTL_GMU_GX, 0x00000222},
>         {REG_A6XX_RBBM_CLOCK_DELAY_GMU_GX, 0x00000111},
>         {REG_A6XX_RBBM_CLOCK_HYST_GMU_GX, 0x00000555},
> -       {REG_A6XX_GPU_GMU_AO_GMU_CGC_MODE_CNTL, 0x20200},
>         {REG_A6XX_GPU_GMU_AO_GMU_CGC_DELAY_CNTL, 0x10111},
>         {REG_A6XX_GPU_GMU_AO_GMU_CGC_HYST_CNTL, 0x5555},
>         {}
> @@ -636,6 +635,7 @@ static const struct adreno_info a6xx_gpus[] = {
>                 .a6xx = &(const struct a6xx_info) {
>                         .hwcg = a612_hwcg,
>                         .protect = &a630_protect,
> +                       .gmu_cgc_mode = 0x00020202,
>                         .prim_fifo_threshold = 0x00080000,
>                 },
>                 /*
> @@ -668,6 +668,7 @@ static const struct adreno_info a6xx_gpus[] = {
>                 .a6xx = &(const struct a6xx_info) {
>                         .hwcg = a615_hwcg,
>                         .protect = &a630_protect,
> +                       .gmu_cgc_mode = 0x00000222,
>                         .prim_fifo_threshold = 0x00180000,
>                 },
>                 .speedbins = ADRENO_SPEEDBINS(
> @@ -691,6 +692,7 @@ static const struct adreno_info a6xx_gpus[] = {
>                 .init = a6xx_gpu_init,
>                 .a6xx = &(const struct a6xx_info) {
>                         .protect = &a630_protect,
> +                       .gmu_cgc_mode = 0x00000222,
>                         .prim_fifo_threshold = 0x00180000,
>                 },
>                 .speedbins = ADRENO_SPEEDBINS(
> @@ -714,6 +716,7 @@ static const struct adreno_info a6xx_gpus[] = {
>                 .a6xx = &(const struct a6xx_info) {
>                         .hwcg = a615_hwcg,
>                         .protect = &a630_protect,
> +                       .gmu_cgc_mode = 0x00000222,
>                         .prim_fifo_threshold = 0x00018000,
>                 },
>                 .speedbins = ADRENO_SPEEDBINS(
> @@ -737,6 +740,7 @@ static const struct adreno_info a6xx_gpus[] = {
>                 .a6xx = &(const struct a6xx_info) {
>                         .hwcg = a615_hwcg,
>                         .protect = &a630_protect,
> +                       .gmu_cgc_mode = 0x00000222,
>                         .prim_fifo_threshold = 0x00018000,
>                 },
>                 .speedbins = ADRENO_SPEEDBINS(
> @@ -760,6 +764,7 @@ static const struct adreno_info a6xx_gpus[] = {
>                 .a6xx = &(const struct a6xx_info) {
>                         .hwcg = a615_hwcg,
>                         .protect = &a630_protect,
> +                       .gmu_cgc_mode = 0x00000222,
>                         .prim_fifo_threshold = 0x00018000,
>                 },
>                 .speedbins = ADRENO_SPEEDBINS(
> @@ -788,6 +793,7 @@ static const struct adreno_info a6xx_gpus[] = {
>                 .a6xx = &(const struct a6xx_info) {
>                         .hwcg = a630_hwcg,
>                         .protect = &a630_protect,
> +                       .gmu_cgc_mode = 0x00020202,
>                         .prim_fifo_threshold = 0x00180000,
>                 },
>         }, {
> @@ -806,6 +812,7 @@ static const struct adreno_info a6xx_gpus[] = {
>                 .a6xx = &(const struct a6xx_info) {
>                         .hwcg = a640_hwcg,
>                         .protect = &a630_protect,
> +                       .gmu_cgc_mode = 0x00020202,
>                         .prim_fifo_threshold = 0x00180000,
>                 },
>                 .speedbins = ADRENO_SPEEDBINS(
> @@ -829,6 +836,7 @@ static const struct adreno_info a6xx_gpus[] = {
>                 .a6xx = &(const struct a6xx_info) {
>                         .hwcg = a650_hwcg,
>                         .protect = &a650_protect,
> +                       .gmu_cgc_mode = 0x00020202,
>                         .prim_fifo_threshold = 0x00300200,
>                 },
>                 .address_space_size = SZ_16G,
> @@ -855,6 +863,7 @@ static const struct adreno_info a6xx_gpus[] = {
>                 .a6xx = &(const struct a6xx_info) {
>                         .hwcg = a660_hwcg,
>                         .protect = &a660_protect,
> +                       .gmu_cgc_mode = 0x00020000,
>                         .prim_fifo_threshold = 0x00300200,
>                 },
>                 .address_space_size = SZ_16G,
> @@ -874,6 +883,7 @@ static const struct adreno_info a6xx_gpus[] = {
>                 .a6xx = &(const struct a6xx_info) {
>                         .hwcg = a660_hwcg,
>                         .protect = &a660_protect,
> +                       .gmu_cgc_mode = 0x00020202,
>                         .prim_fifo_threshold = 0x00200200,
>                 },
>                 .address_space_size = SZ_16G,
> @@ -899,6 +909,7 @@ static const struct adreno_info a6xx_gpus[] = {
>                 .a6xx = &(const struct a6xx_info) {
>                         .hwcg = a640_hwcg,
>                         .protect = &a630_protect,
> +                       .gmu_cgc_mode = 0x00020202,
>                         .prim_fifo_threshold = 0x00200200,
>                 },
>         }, {
> @@ -917,6 +928,7 @@ static const struct adreno_info a6xx_gpus[] = {
>                 .a6xx = &(const struct a6xx_info) {
>                         .hwcg = a690_hwcg,
>                         .protect = &a690_protect,
> +                       .gmu_cgc_mode = 0x00020200,
>                         .prim_fifo_threshold = 0x00800200,
>                 },
>                 .address_space_size = SZ_16G,
> @@ -1178,6 +1190,7 @@ static const struct adreno_info a7xx_gpus[] = {
>                 .a6xx = &(const struct a6xx_info) {
>                         .hwcg = a702_hwcg,
>                         .protect = &a650_protect,
> +                       .gmu_cgc_mode = 0x00020202,
>                         .prim_fifo_threshold = 0x0000c000,
>                 },
>                 .speedbins = ADRENO_SPEEDBINS(
> @@ -1202,6 +1215,7 @@ static const struct adreno_info a7xx_gpus[] = {
>                 .a6xx = &(const struct a6xx_info) {
>                         .hwcg = a730_hwcg,
>                         .protect = &a730_protect,
> +                       .gmu_cgc_mode = 0x00020000,
>                 },
>                 .address_space_size = SZ_16G,
>         }, {
> @@ -1221,6 +1235,7 @@ static const struct adreno_info a7xx_gpus[] = {
>                         .hwcg = a740_hwcg,
>                         .protect = &a730_protect,
>                         .gmu_chipid = 0x7020100,
> +                       .gmu_cgc_mode = 0x00020202,
>                 },
>                 .address_space_size = SZ_16G,
>         }, {
> @@ -1239,6 +1254,7 @@ static const struct adreno_info a7xx_gpus[] = {
>                         .hwcg = a740_hwcg,
>                         .protect = &a730_protect,
>                         .gmu_chipid = 0x7050001,
> +                       .gmu_cgc_mode = 0x00020202,
>                 },
>                 .address_space_size = SZ_256G,
>         }, {
> @@ -1257,6 +1273,7 @@ static const struct adreno_info a7xx_gpus[] = {
>                 .a6xx = &(const struct a6xx_info) {
>                         .protect = &a730_protect,
>                         .gmu_chipid = 0x7090100,
> +                       .gmu_cgc_mode = 0x00020202,
>                 },
>                 .address_space_size = SZ_16G,
>         }
> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> index aaeb1161f90d..871452daa189 100644
> --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> @@ -402,7 +402,7 @@ static void a6xx_set_hwcg(struct msm_gpu *gpu, bool state)
>         struct a6xx_gmu *gmu = &a6xx_gpu->gmu;
>         const struct adreno_reglist *reg;
>         unsigned int i;
> -       u32 val, clock_cntl_on, cgc_mode;
> +       u32 val, clock_cntl_on;
>
>         if (!(adreno_gpu->info->a6xx->hwcg || adreno_is_a7xx(adreno_gpu)))
>                 return;
> @@ -417,10 +417,8 @@ static void a6xx_set_hwcg(struct msm_gpu *gpu, bool state)
>                 clock_cntl_on = 0x8aa8aa82;
>
>         if (adreno_is_a7xx(adreno_gpu)) {
> -               cgc_mode = adreno_is_a740_family(adreno_gpu) ? 0x20222 : 0x20000;
> -

This does appear to change the gmu_cgc_mode in nearly all cases.. was
this intended?

BR,
-R

>                 gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_MODE_CNTL,
> -                         state ? cgc_mode : 0);
> +                         state ? adreno_gpu->info->a6xx->gmu_cgc_mode : 0);
>                 gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_DELAY_CNTL,
>                           state ? 0x10111 : 0);
>                 gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_HYST_CNTL,
> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.h b/drivers/gpu/drm/msm/adreno/a6xx_gpu.h
> index bc37bd8c7f65..0fb7febf70e7 100644
> --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.h
> +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.h
> @@ -22,6 +22,7 @@ struct a6xx_info {
>         const struct adreno_reglist *hwcg;
>         const struct adreno_protect *protect;
>         u32 gmu_chipid;
> +       u32 gmu_cgc_mode;
>         u32 prim_fifo_threshold;
>  };
>
>
> --
> 2.45.2
>





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