linux-kernel - [PATCH] media: venus: core: Set up secure memory ranges for SC7180

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Message-Id: <20230616-topic-sc7180_venus_lawp-v1-1-15a8f44d474e@linaro.org>
Date:   Fri, 16 Jun 2023 01:36:58 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
        Vikash Garodia <quic_vgarodia@...cinc.com>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        Nikita Travkin <nikita@...n.ru>, linux-media@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH] media: venus: core: Set up secure memory ranges for SC7180

Not all SC7180 devices ship with ChromeOS firmware. WoA devices use
Android-like TZ, which uses PAS for image authentication. That requires
the predefined virtual address ranges to be passed via scm calls.
Define them to enable Venus on non-CrOS SC7180 devices.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 drivers/media/platform/qcom/venus/core.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 2ae867cb4c48..bee1b4c98060 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -760,6 +760,10 @@ static const struct venus_resources sc7180_res = {
 	.vmem_size = 0,
 	.vmem_addr = 0,
 	.dma_mask = 0xe0000000 - 1,
+	.cp_start = 0,
+	.cp_size = 0x70800000,
+	.cp_nonpixel_start = 0x1000000,
+	.cp_nonpixel_size = 0x24800000,
 	.fwname = "qcom/venus-5.4/venus.mdt",
 };
 

---
base-commit: 925294c9aa184801cc0a451b69a18dd0fe7d847d
change-id: 20230616-topic-sc7180_venus_lawp-965e5fd18c7a

Best regards,
-- 
Konrad Dybcio <konrad.dybcio@...aro.org>