From 1dccdba084897443d116508a8ed71e0ac8a031a4 Mon Sep 17 00:00:00 2001
From: Tomeu Vizoso <tomeu@tomeuvizoso.net>
Date: Tue, 21 Nov 2023 07:32:59 +0100
Subject: [PATCH] drm/etnaviv: Expose a few more chipspecs to userspace
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@tomeuvizoso.net>
Acked-by: Christian Gmeiner <cgmeiner@igalia.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 20 +++++++++++++++
drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 12 +++++++++
drivers/gpu/drm/etnaviv/etnaviv_hwdb.c | 34 ++++++++++++++++++++++++++
include/uapi/drm/etnaviv_drm.h | 5 ++++
4 files changed, 71 insertions(+)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index 1dcfa23db3be4..18725ff5c79bb 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 197e0037732ec..7d5e9158e13c1 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
@@ -54,6 +54,18 @@ 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 67201242438be..9eb8ca7c50340 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,
@@ -48,6 +52,11 @@ static const struct etnaviv_chip_identity etnaviv_chip_identities[] = {
.register_max = 64,
.thread_count = 256,
.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 = 512,
.pixel_pipes = 1,
@@ -80,6 +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,
@@ -112,6 +125,10 @@ 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,
@@ -143,6 +160,11 @@ static const struct etnaviv_chip_identity etnaviv_chip_identities[] = {
.register_max = 64,
.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,
@@ -175,6 +197,10 @@ 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,
@@ -207,6 +233,10 @@ static const struct etnaviv_chip_identity etnaviv_chip_identities[] = {
.thread_count = 256,
.shader_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,
@@ -239,6 +269,10 @@ static const struct etnaviv_chip_identity etnaviv_chip_identities[] = {
.thread_count = 256,
.shader_core_count = 1,
.nn_core_count = 6,
+ .nn_mad_per_core = 64,
+ .tp_core_count = 3,
+ .on_chip_sram_size = 262144,
+ .axi_sram_size = 0,
.vertex_cache_size = 16,
.vertex_output_buffer_size = 1024,
.pixel_pipes = 1,
diff --git a/include/uapi/drm/etnaviv_drm.h b/include/uapi/drm/etnaviv_drm.h
index af024d90453dd..d87410a8443aa 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
--
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