From 7946920d402d9a4b5bf53c3adc3783105dbf3966 Mon Sep 17 00:00:00 2001 From: Mikko Perttunen Date: Tue, 20 Sep 2022 11:11:56 +0300 Subject: memory: tegra: Add API for retrieving carveout bounds On Tegra234 NVDEC firmware is loaded from a secure carveout, where it has been loaded by a bootloader. When booting NVDEC, we need to tell it the address of this firmware, which we can determine by checking the starting address of the carveout. As such, add an MC API to query the bounds of carveouts, and add related information on Tegra234. Signed-off-by: Mikko Perttunen Acked-by: Krzysztof Kozlowski Signed-off-by: Thierry Reding --- include/soc/tegra/mc.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/soc') diff --git a/include/soc/tegra/mc.h b/include/soc/tegra/mc.h index 47ce6d434427..51a2263e1bc5 100644 --- a/include/soc/tegra/mc.h +++ b/include/soc/tegra/mc.h @@ -193,6 +193,8 @@ struct tegra_mc_soc { unsigned int num_address_bits; unsigned int atom_size; + unsigned int num_carveouts; + u16 client_id_mask; u8 num_channels; @@ -244,6 +246,8 @@ unsigned int tegra_mc_get_emem_device_count(struct tegra_mc *mc); #ifdef CONFIG_TEGRA_MC struct tegra_mc *devm_tegra_memory_controller_get(struct device *dev); int tegra_mc_probe_device(struct tegra_mc *mc, struct device *dev); +int tegra_mc_get_carveout_info(struct tegra_mc *mc, unsigned int id, + phys_addr_t *base, u64 *size); #else static inline struct tegra_mc * devm_tegra_memory_controller_get(struct device *dev) @@ -256,6 +260,13 @@ tegra_mc_probe_device(struct tegra_mc *mc, struct device *dev) { return -ENODEV; } + +static inline int +tegra_mc_get_carveout_info(struct tegra_mc *mc, unsigned int id, + phys_addr_t *base, u64 *size) +{ + return -ENODEV; +} #endif #endif /* __SOC_TEGRA_MC_H__ */ -- cgit v1.2.3-58-ga151