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@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/platform/Kconfig

@@ -562,7 +562,7 @@ 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

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 +244,26 @@ 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,