From c2848008358eec561ec1f240340b17a3b9e6173b Mon Sep 17 00:00:00 2001
From: Tomeu Vizoso <tomeu@tomeuvizoso.net>
Date: Thu, 16 Nov 2023 15:09:09 +0100
Subject: [PATCH] FROMGIT: 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.
Signed-off-by: Tomeu Vizoso <tomeu@tomeuvizoso.net>
Acked-by: Christian Gmeiner <cgmeiner@igalia.com>
---
drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 20 ++++++++++++++++++++
drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 12 ++++++++++++
drivers/gpu/drm/etnaviv/etnaviv_hwdb.c | 24 ++++++++++++++++++++++++
include/uapi/drm/etnaviv_drm.h | 5 +++++
4 files changed, 61 insertions(+)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index 2d4c112ce033..cd7c70720612 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 4d8a7d48ade3..fbc72ce2daaf 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
@@ -55,6 +55,18 @@ 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 8665f2658d51..1d67a89c1eaf 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,
@@ -80,6 +84,10 @@ 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 +120,10 @@ 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,
@@ -175,6 +187,10 @@ 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 +223,10 @@ 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 +259,10 @@ 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 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
--
GitLab