On 2/28/2023 8:54 PM, Konrad Dybcio wrote:
Leave a clue about where the seemingly magic values come from, as it
is not obvious and requires some digging downstream..
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
---
drivers/media/platform/qcom/venus/firmware.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c
index 61ff20a7e935..1bb6406af564 100644
--- a/drivers/media/platform/qcom/venus/firmware.c
+++ b/drivers/media/platform/qcom/venus/firmware.c
@@ -241,6 +241,13 @@ int venus_boot(struct venus_core *core)
return ret;
if (core->use_tz && res->cp_size) {
+ /*
+ * Clues for porting using downstream data:
+ * cp_start = 0
+ * cp_size = venus_ns/virtual-addr-pool[0] (yes, addr not size)
+ * cp_nonpixel_start = venus_sec_non_pixel/virtual-addr-pool[0]
+ * cp_nonpixel_size = venus_sec_non_pixel/virtual-addr-pool[1]
+ */
ret = qcom_scm_mem_protect_video_var(res->cp_start,
res->cp_size,
res->cp_nonpixel_start,
reviewed-by: Dikshita Agarwal <quic_dikshita@xxxxxxxxxxx>
