diff mbox series

[05/10] drm/mediatek: Add mtk_ddp_sec_write to config secure buffer info

Message ID 20230919030345.8629-6-jason-jh.lin@mediatek.com (mailing list archive)
State New, archived
Headers show
Series Add mediate-drm secure flow for SVP | expand

Commit Message

Jason-JH.Lin Sept. 19, 2023, 3:03 a.m. UTC
Add mtk_ddp_sec_write to configure secure buffer information to
cmdq secure packet data.
Then secure cmdq driver will use these information to configure
curresponding secure DRAM address to HW overlay in secure world.

Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 12 ++++++++++++
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h |  4 ++++
 2 files changed, 16 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index 771f4e173353..3dca936b9143 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -111,6 +111,18 @@  void mtk_ddp_write_mask(struct cmdq_pkt *cmdq_pkt, unsigned int value,
 #endif
 }
 
+void mtk_ddp_sec_write(struct cmdq_pkt *cmdq_pkt, u32 addr, u64 base,
+		       const enum cmdq_iwc_addr_metadata_type type,
+		       const u32 offset, const u32 size, const u32 port)
+{
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	/* secure buffer will be 4K alignment */
+	if (cmdq_pkt)
+		cmdq_sec_pkt_write(cmdq_pkt, addr, base, type,
+				   offset, ALIGN(size, PAGE_SIZE), port);
+#endif
+}
+
 static int mtk_ddp_clk_enable(struct device *dev)
 {
 	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
index febcaeef16a1..239a65140352 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -7,6 +7,7 @@ 
 #define MTK_DRM_DDP_COMP_H
 
 #include <linux/io.h>
+#include <linux/mailbox/mtk-cmdq-sec-mailbox.h>
 #include <linux/soc/mediatek/mtk-cmdq.h>
 #include <linux/soc/mediatek/mtk-mmsys.h>
 #include <linux/soc/mediatek/mtk-mutex.h>
@@ -291,4 +292,7 @@  void mtk_ddp_write_relaxed(struct cmdq_pkt *cmdq_pkt, unsigned int value,
 void mtk_ddp_write_mask(struct cmdq_pkt *cmdq_pkt, unsigned int value,
 			struct cmdq_client_reg *cmdq_reg, void __iomem *regs,
 			unsigned int offset, unsigned int mask);
+void mtk_ddp_sec_write(struct cmdq_pkt *cmdq_pkt, u32 addr, u64 base,
+		       const enum cmdq_iwc_addr_metadata_type type,
+		       const u32 offset, const u32 size, const u32 port);
 #endif /* MTK_DRM_DDP_COMP_H */