From: Hsiao Chien Sung <shawn.sung@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> For the Secure Video Path (SVP) feature, inculding the memory stored secure video content, the registers of display HW pipeline and the HW configure operations are required to execute in the secure world. So using a CMDQ secure driver to make all display HW registers configuration secure DRAM access permision settings execute by GCE secure thread in the secure world. We are landing this feature on mt8188 and mt8195 currently. --- Based on 2 series and 1 patch: [1] Add CMDQ driver support for mt8188 - https://patchwork.kernel.org/project/linux-mediatek/list/?series=810382 [2] Add mediatek,gce-events definition to mediatek,gce-mailbox bindings - https://patchwork.kernel.org/project/linux-mediatek/list/?series=810938 [3] soc: mediatek: Add register definitions for GCE - https://patchwork.kernel.org/project/linux-mediatek/patch/20231017064717.21616-2-shawn.sung@xxxxxxxxxxxx/ --- Changes in v4: 1. Rebase on mediatek-drm-next(278640d4d74cd) and fix the conflicts 2. This series is based on 20240307013458.23550-1-jason-jh.lin@xxxxxxxxxxxx Changes in v3: 1. separate mt8188 driver porting patches to another series 2. separate adding 'mediatek,gce-events' event prop to another series 3. sepatate mailbox helper and controller driver modification to a single patch for adding looping thread 4. add kerneldoc for secure mailbox related definition 5. add moving reuseable definition patch before adding secure mailbox driver patch 6. adjust redundant logic in mtk-cmdq-sec-mailbox Changes in v2: 1. adjust dt-binding SW event define patch before the dt-binding patch using it 2. adjust dt-binding patch for secure cmdq driver 3. remove the redundant patches or merge the patches of modification for the same API Jason-JH.Lin (9): dt-bindings: gce: mt8195: Add CMDQ_SYNC_TOKEN_SECURE_THR_EOF event id dt-bindings: mailbox: Add mboxes property for CMDQ secure driver soc: mediatek: cmdq: Add cmdq_pkt_logic_command to support math operation soc: mediatek: cmdq: Add cmdq_pkt_write_s_reg_value to support write value to reg mailbox: mtk-cmdq: Support GCE loop packets in interrupt handler mediatek: cmdq: Add cmdq_pkt_finalize_loop for looping cmd with irq mailbox: mediatek: Move reuseable definition to header for secure driver mailbox: mediatek: Add CMDQ secure mailbox driver mailbox: mediatek: Add secure CMDQ driver support for CMDQ driver .../mailbox/mediatek,gce-mailbox.yaml | 3 + drivers/mailbox/Makefile | 2 +- drivers/mailbox/mtk-cmdq-mailbox.c | 79 +- drivers/mailbox/mtk-cmdq-sec-mailbox.c | 1091 +++++++++++++++++ drivers/mailbox/mtk-cmdq-sec-tee.c | 165 +++ drivers/soc/mediatek/mtk-cmdq-helper.c | 72 ++ include/dt-bindings/gce/mt8195-gce.h | 6 + include/linux/mailbox/mtk-cmdq-mailbox.h | 36 + .../linux/mailbox/mtk-cmdq-sec-iwc-common.h | 385 ++++++ include/linux/mailbox/mtk-cmdq-sec-mailbox.h | 158 +++ include/linux/mailbox/mtk-cmdq-sec-tee.h | 105 ++ include/linux/soc/mediatek/mtk-cmdq.h | 61 + 12 files changed, 2132 insertions(+), 31 deletions(-) create mode 100644 drivers/mailbox/mtk-cmdq-sec-mailbox.c create mode 100644 drivers/mailbox/mtk-cmdq-sec-tee.c create mode 100644 include/linux/mailbox/mtk-cmdq-sec-iwc-common.h create mode 100644 include/linux/mailbox/mtk-cmdq-sec-mailbox.h create mode 100644 include/linux/mailbox/mtk-cmdq-sec-tee.h -- 2.18.0
