linux-kernel - [PATCH v4] media: venus : hfi: add venus image info into smem

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Date:   Fri,  9 Apr 2021 17:16:19 +0530
From:   Dikshita Agarwal <dikshita@...eaurora.org>
To:     linux-media@...r.kernel.org, stanimir.varbanov@...aro.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        vgarodia@...eaurora.org, swboyd@...omium.org,
        bjorn.andersson@...aro.org,
        Dikshita Agarwal <dikshita@...eaurora.org>
Subject: [PATCH v4] media: venus : hfi: add venus image info into smem

Fill fw version info into smem to be printed as part of
soc info.

Signed-off-by: Dikshita Agarwal <dikshita@...eaurora.org>
Reported-by: kernel test robot <lkp@...el.com>

change since v3:
 added dependency on QCOM_SMEM (Stephen)
---
 drivers/media/platform/Kconfig               |  2 +-
 drivers/media/platform/qcom/venus/hfi_msgs.c | 21 +++++++++++++++++++--
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index fd1831e..9c75e88 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -543,7 +543,7 @@ config VIDEO_TI_VPE_DEBUG
 
 config VIDEO_QCOM_VENUS
 	tristate "Qualcomm Venus V4L2 encoder/decoder driver"
-	depends on VIDEO_DEV && VIDEO_V4L2
+	depends on VIDEO_DEV && VIDEO_V4L2 && QCOM_SMEM
 	depends on (ARCH_QCOM && IOMMU_DMA) || COMPILE_TEST
 	select QCOM_MDT_LOADER if ARCH_QCOM
 	select QCOM_SCM if ARCH_QCOM
diff --git a/drivers/media/platform/qcom/venus/hfi_msgs.c b/drivers/media/platform/qcom/venus/hfi_msgs.c
index 06a1908..74cfc4f 100644
--- a/drivers/media/platform/qcom/venus/hfi_msgs.c
+++ b/drivers/media/platform/qcom/venus/hfi_msgs.c
@@ -6,6 +6,7 @@
 #include <linux/hash.h>
 #include <linux/list.h>
 #include <linux/slab.h>
+#include <linux/soc/qcom/smem.h>
 #include <media/videobuf2-v4l2.h>
 
 #include "core.h"
@@ -14,6 +15,10 @@
 #include "hfi_msgs.h"
 #include "hfi_parser.h"
 
+#define SMEM_IMG_VER_TBL 469
+#define VER_STR_SZ	128
+#define SMEM_IMG_OFFSET_VENUS (14 * 128)
+
 static void event_seq_changed(struct venus_core *core, struct venus_inst *inst,
 			      struct hfi_msg_event_notify_pkt *pkt)
 {
@@ -239,15 +244,27 @@ static void
 sys_get_prop_image_version(struct device *dev,
 			   struct hfi_msg_sys_property_info_pkt *pkt)
 {
+	u8 *smem_tbl_ptr;
+	u8 *img_ver;
 	int req_bytes;
+	size_t smem_blk_sz;
 
 	req_bytes = pkt->hdr.size - sizeof(*pkt);
 
-	if (req_bytes < 128 || !pkt->data[1] || pkt->num_properties > 1)
+	if (req_bytes < VER_STR_SZ || !pkt->data[1] || pkt->num_properties > 1)
 		/* bad packet */
 		return;
 
-	dev_dbg(dev, VDBGL "F/W version: %s\n", (u8 *)&pkt->data[1]);
+	img_ver = (u8 *)&pkt->data[1];
+
+	dev_dbg(dev, VDBGL "F/W version: %s\n", img_ver);
+
+	smem_tbl_ptr = qcom_smem_get(QCOM_SMEM_HOST_ANY,
+		SMEM_IMG_VER_TBL, &smem_blk_sz);
+	if (smem_tbl_ptr &&
+	    smem_blk_sz >= SMEM_IMG_OFFSET_VENUS + VER_STR_SZ)
+		memcpy(smem_tbl_ptr + SMEM_IMG_OFFSET_VENUS,
+		       img_ver, VER_STR_SZ);
 }
 
 static void hfi_sys_property_info(struct venus_core *core,
-- 
2.7.4