linux-kernel - [PATCH] drm/etnaviv: provide more ID values via GET

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Message-Id: <20201216114209.276630-1-christian.gmeiner@gmail.com>
Date:   Wed, 16 Dec 2020 12:42:01 +0100
From:   Christian Gmeiner <christian.gmeiner@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Christian Gmeiner <christian.gmeiner@...il.com>,
        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
Subject: [PATCH] drm/etnaviv: provide more ID values via GET_PARAM ioctl.

Make it possible for the user space to access these ID values.

Signed-off-by: Christian Gmeiner <christian.gmeiner@...il.com>
---
 drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 12 ++++++++++++
 include/uapi/drm/etnaviv_drm.h        |  3 +++
 2 files changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index c6404b8d067f..ec16991ba8b6 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -156,6 +156,18 @@ int etnaviv_gpu_get_param(struct etnaviv_gpu *gpu, u32 param, u64 *value)
 			*value = ~0ULL;
 		break;
 
+	case ETNAVIV_PARAM_GPU_PRODUCT_ID:
+		*value = gpu->identity.product_id;
+		break;
+
+	case ETNAVIV_PARAM_GPU_CUSTOMER_ID:
+		*value = gpu->identity.customer_id;
+		break;
+
+	case ETNAVIV_PARAM_GPU_ECO_ID:
+		*value = gpu->identity.eco_id;
+		break;
+
 	default:
 		DBG("%s: invalid param: %u", dev_name(gpu->dev), param);
 		return -EINVAL;
diff --git a/include/uapi/drm/etnaviv_drm.h b/include/uapi/drm/etnaviv_drm.h
index 09d0df8b71c5..af024d90453d 100644
--- a/include/uapi/drm/etnaviv_drm.h
+++ b/include/uapi/drm/etnaviv_drm.h
@@ -74,6 +74,9 @@ struct drm_etnaviv_timespec {
 #define ETNAVIV_PARAM_GPU_NUM_CONSTANTS             0x19
 #define ETNAVIV_PARAM_GPU_NUM_VARYINGS              0x1a
 #define ETNAVIV_PARAM_SOFTPIN_START_ADDR            0x1b
+#define ETNAVIV_PARAM_GPU_PRODUCT_ID                0x1c
+#define ETNAVIV_PARAM_GPU_CUSTOMER_ID               0x1d
+#define ETNAVIV_PARAM_GPU_ECO_ID                    0x1e
 
 #define ETNA_MAX_PIPES 4
 
-- 
2.29.2