debug lk

hc

2024-02-20 e636c8d336489bf3eed5878299e6cc045bbad077

 kernel/include/dt-bindings/mailbox/tegra186-hsp.h
..
..
@@ -22,4 +22,15 @@
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 #define TEGRA_HSP_DB_MASTER_CCPLEX 17
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 #define TEGRA_HSP_DB_MASTER_BPMP 19
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+/*
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+ * Shared mailboxes are unidirectional, so the direction needs to be specified
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+ * in the device tree.
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+ */
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+#define TEGRA_HSP_SM_MASK 0x00ffffff
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+#define TEGRA_HSP_SM_FLAG_RX (0 << 31)
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+#define TEGRA_HSP_SM_FLAG_TX (1 << 31)
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+
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+#define TEGRA_HSP_SM_RX(x) (TEGRA_HSP_SM_FLAG_RX | ((x) & TEGRA_HSP_SM_MASK))
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+#define TEGRA_HSP_SM_TX(x) (TEGRA_HSP_SM_FLAG_TX | ((x) & TEGRA_HSP_SM_MASK))
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+
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 #endif