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Lin" , Singo Chang , Nancy Lin , Shawn Sung , , Jeffrey Kardatzke Subject: [PATCH v2 10/11] drm/mediatek: Add cmdq_insert_backup_cookie before secure pkt finalize Date: Mon, 23 Oct 2023 12:45:47 +0800 Message-ID: <20231023044549.21412-11-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20231023044549.21412-1-jason-jh.lin@mediatek.com> References: <20231023044549.21412-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--10.575200-8.000000 X-TMASE-MatchedRID: XAa2d/45j8Tob/hVdrvnXjPDkSOzeDWW+eBf9ovw8I27eXIF2U7rKy+8 OxujShyxE/UmhJjBrzZC3mgca9yt8kttpN+KVVd9syNb+yeIRArvJY9pBzgg1LCJyW5Zs+OUvFf PytWHA2khXi7xgp14qxI7tf+6KnxtiBoFctaOhN8jRwcsjqWGAgrefVId6fzVCqIJhrrDy28xBh Y3mcMkVIIkyrZK9jzgumMCMwce1mUfE8yM4pjsD7q9UFRTJ0kKxEHRux+uk8h+ICquNi0WJOnpm v+n4CKZ+z8NpjYX2oFuizvUFLGN2sb0QpIoMabiftwZ3X11IV0= X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--10.575200-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 62FA6C2205696EB83297A6033940F9FCE76B878E6B867B75A7503987C2069B0D2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231022_214649_217604_F5A4FD94 X-CRM114-Status: GOOD ( 12.74 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add cmdq_insert_backup_cookie to append some commands before EOC: 1. Get GCE HW thread execute count from the GCE HW register. 2. Add 1 to the execute count and then store into a shared memory. 3. Set a software event siganl as secure irq to GCE HW. Since the value of execute count + 1 is stored in a shared memory, CMDQ driver in the normal world can use it to handle task done in irq handler and CMDQ driver in the secure world will use it to schedule the task slot for each secure thread. Signed-off-by: Jason-JH.Lin --- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index 6c2cf339b923..399aa6bb2f8d 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -177,7 +177,7 @@ void mtk_crtc_disable_secure_state(struct drm_crtc *crtc) sec_scn = CMDQ_SEC_SUB_DISP_DISABLE; cmdq_sec_pkt_set_data(&mtk_crtc->sec_cmdq_handle, sec_engine, sec_engine, sec_scn); - + cmdq_sec_insert_backup_cookie(&mtk_crtc->sec_cmdq_handle); cmdq_pkt_finalize(&mtk_crtc->sec_cmdq_handle); dma_sync_single_for_device(mtk_crtc->sec_cmdq_client.chan->mbox->dev, mtk_crtc->sec_cmdq_handle.pa_base, @@ -786,6 +786,8 @@ static void mtk_drm_crtc_update_config(struct mtk_drm_crtc *mtk_crtc, cmdq_pkt_clear_event(cmdq_handle, mtk_crtc->cmdq_event); cmdq_pkt_wfe(cmdq_handle, mtk_crtc->cmdq_event, false); mtk_crtc_ddp_config(crtc, cmdq_handle); + if (cmdq_handle->sec_data) + cmdq_sec_insert_backup_cookie(cmdq_handle); cmdq_pkt_finalize(cmdq_handle); dma_sync_single_for_device(cmdq_client.chan->mbox->dev, cmdq_handle->pa_base,