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From: Christian Gmeiner <christian.gmeiner@gmail.com>
To: tomeu@tomeuvizoso.net,
	Lucas Stach <l.stach@pengutronix.de>,
	Russell King <linux+etnaviv@armlinux.org.uk>,
	Christian Gmeiner <christian.gmeiner@gmail.com>,
	David Airlie <airlied@gmail.com>,
	Daniel Vetter <daniel@ffwll.ch>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>
Cc: Christian Gmeiner <cgmeiner@igalia.com>,
	etnaviv@lists.freedesktop.org,
	dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] Revert "drm/etnaviv: Expose a few more chipspecs to userspace"
Date: Sat, 20 Apr 2024 15:41:58 +0200
Message-ID: <20240420134159.110509-1-christian.gmeiner@gmail.com>
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MIME-Version: 1.0
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From: Christian Gmeiner <cgmeiner@igalia.com>

This reverts commit 1dccdba084897443d116508a8ed71e0ac8a031a4.

In userspace a different approach was choosen - hwdb. As a result, there
is no need for these values.

Signed-off-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 | 34 --------------------------
 include/uapi/drm/etnaviv_drm.h         |  5 ----
 4 files changed, 71 deletions(-)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index 734412aae94d..e47e5562535a 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -164,26 +164,6 @@ 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 7d5e9158e13c..197e0037732e 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
@@ -54,18 +54,6 @@ 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 d8e7334de8ce..8665f2658d51 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_hwdb.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_hwdb.c
@@ -17,10 +17,6 @@ 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,
@@ -52,11 +48,6 @@ 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,
@@ -89,10 +80,6 @@ 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,
@@ -125,10 +112,6 @@ 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,
@@ -160,11 +143,6 @@ 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,
@@ -197,10 +175,6 @@ 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,
@@ -233,10 +207,6 @@ 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,
@@ -269,10 +239,6 @@ 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 d87410a8443a..af024d90453d 100644
--- a/include/uapi/drm/etnaviv_drm.h
+++ b/include/uapi/drm/etnaviv_drm.h
@@ -77,11 +77,6 @@ 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
 
-- 
2.44.0