| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <CAH9NwWc6Dw-M90eQsYG4mej=oWdtc+UdvYVp-u05c_PyqzHZUg@mail.gmail.com>
Date: Fri, 17 Nov 2023 09:51:02 +0100
From: Christian Gmeiner <christian.gmeiner@...il.com>
To: Tomeu Vizoso <tomeu@...euvizoso.net>
Cc: Lucas Stach <l.stach@...gutronix.de>,
Russell King <linux+etnaviv@...linux.org.uk>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>, etnaviv@...ts.freedesktop.org,
dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/etnaviv: Expose a few more chipspecs to userspace
Hi Tomeu
>
> These ones will be needed to make use fo the NN and TP units in the NPUs
> based on Vivante IP.
>
> Also fix the number of NN cores in the VIPNano-qi.
>
> Signed-off-by: Tomeu Vizoso <tomeu@...euvizoso.net>
> ---
> drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 20 ++++++++++++++++++++
> drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 12 ++++++++++++
> drivers/gpu/drm/etnaviv/etnaviv_hwdb.c | 22 +++++++++++++++++++++-
> include/uapi/drm/etnaviv_drm.h | 5 +++++
> 4 files changed, 58 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> index 5f96e7b1a9ec..9a18b5431975 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> @@ -164,6 +164,26 @@ int etnaviv_gpu_get_param(struct etnaviv_gpu *gpu, u32 param, u64 *value)
> *value = gpu->identity.eco_id;
> break;
>
> + case ETNAVIV_PARAM_GPU_NN_CORE_COUNT:
> + *value = gpu->identity.nn_core_count;
> + break;
> +
> + case ETNAVIV_PARAM_GPU_NN_MAD_PER_CORE:
> + *value = gpu->identity.nn_mad_per_core;
> + break;
> +
> + case ETNAVIV_PARAM_GPU_TP_CORE_COUNT:
> + *value = gpu->identity.tp_core_count;
> + break;
> +
> + case ETNAVIV_PARAM_GPU_ON_CHIP_SRAM_SIZE:
> + *value = gpu->identity.on_chip_sram_size;
> + break;
> +
> + case ETNAVIV_PARAM_GPU_AXI_SRAM_SIZE:
> + *value = gpu->identity.axi_sram_size;
> + break;
> +
> default:
> DBG("%s: invalid param: %u", dev_name(gpu->dev), param);
> return -EINVAL;
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
> index c8f3ad2031ce..83ef3c06da5d 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
> @@ -53,6 +53,18 @@ struct etnaviv_chip_identity {
> /* Number of Neural Network cores. */
> u32 nn_core_count;
>
> + /* Number of MAD units per Neural Network core. */
> + u32 nn_mad_per_core;
> +
> + /* Number of Tensor Processing cores. */
> + u32 tp_core_count;
> +
> + /* Size in bytes of the SRAM inside the NPU. */
> + u32 on_chip_sram_size;
> +
> + /* Size in bytes of the SRAM across the AXI bus. */
> + u32 axi_sram_size;
> +
> /* Size of the vertex cache. */
> u32 vertex_cache_size;
>
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_hwdb.c b/drivers/gpu/drm/etnaviv/etnaviv_hwdb.c
> index 0cb5aacaf384..93f15cce6d22 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_hwdb.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_hwdb.c
> @@ -17,6 +17,10 @@ static const struct etnaviv_chip_identity etnaviv_chip_identities[] = {
> .thread_count = 128,
> .shader_core_count = 1,
> .nn_core_count = 0,
> + .nn_mad_per_core = 0,
> + .tp_core_count = 0,
> + .on_chip_sram_size = 0,
> + .axi_sram_size = 0,
> .vertex_cache_size = 8,
> .vertex_output_buffer_size = 1024,
> .pixel_pipes = 1,
> @@ -49,6 +53,10 @@ static const struct etnaviv_chip_identity etnaviv_chip_identities[] = {
> .thread_count = 512,
> .shader_core_count = 2,
> .nn_core_count = 0,
> + .nn_mad_per_core = 0,
> + .tp_core_count = 0,
> + .on_chip_sram_size = 0,
> + .axi_sram_size = 0,
> .vertex_cache_size = 16,
> .vertex_output_buffer_size = 1024,
> .pixel_pipes = 1,
> @@ -81,6 +89,10 @@ static const struct etnaviv_chip_identity etnaviv_chip_identities[] = {
> .thread_count = 512,
> .shader_core_count = 2,
> .nn_core_count = 0,
> + .nn_mad_per_core = 0,
> + .tp_core_count = 0,
> + .on_chip_sram_size = 0,
> + .axi_sram_size = 0,
> .vertex_cache_size = 16,
> .vertex_output_buffer_size = 1024,
> .pixel_pipes = 1,
> @@ -113,6 +125,10 @@ static const struct etnaviv_chip_identity etnaviv_chip_identities[] = {
> .thread_count = 1024,
> .shader_core_count = 4,
> .nn_core_count = 0,
> + .nn_mad_per_core = 0,
> + .tp_core_count = 0,
> + .on_chip_sram_size = 0,
> + .axi_sram_size = 0,
> .vertex_cache_size = 16,
> .vertex_output_buffer_size = 1024,
> .pixel_pipes = 2,
> @@ -144,7 +160,11 @@ static const struct etnaviv_chip_identity etnaviv_chip_identities[] = {
> .register_max = 64,
> .thread_count = 256,
> .shader_core_count = 1,
> - .nn_core_count = 1,
> + .nn_core_count = 8,
> + .nn_mad_per_core = 64,
> + .tp_core_count = 4,
> + .on_chip_sram_size = 524288,
> + .axi_sram_size = 1048576,
> .vertex_cache_size = 16,
> .vertex_output_buffer_size = 1024,
> .pixel_pipes = 1,
I am counting 8 entries in the etnaviv_chip_identities array and you
are just updating 5 of them.
> diff --git a/include/uapi/drm/etnaviv_drm.h b/include/uapi/drm/etnaviv_drm.h
> index af024d90453d..d87410a8443a 100644
> --- a/include/uapi/drm/etnaviv_drm.h
> +++ b/include/uapi/drm/etnaviv_drm.h
> @@ -77,6 +77,11 @@ struct drm_etnaviv_timespec {
> #define ETNAVIV_PARAM_GPU_PRODUCT_ID 0x1c
> #define ETNAVIV_PARAM_GPU_CUSTOMER_ID 0x1d
> #define ETNAVIV_PARAM_GPU_ECO_ID 0x1e
> +#define ETNAVIV_PARAM_GPU_NN_CORE_COUNT 0x1f
> +#define ETNAVIV_PARAM_GPU_NN_MAD_PER_CORE 0x20
> +#define ETNAVIV_PARAM_GPU_TP_CORE_COUNT 0x21
> +#define ETNAVIV_PARAM_GPU_ON_CHIP_SRAM_SIZE 0x22
> +#define ETNAVIV_PARAM_GPU_AXI_SRAM_SIZE 0x23
>
> #define ETNA_MAX_PIPES 4
>
> --
> 2.41.0
>
--
greets
--
Christian Gmeiner, MSc
https://christian-gmeiner.info/privacypolicy
Powered by blists - more mailing lists