Tegra: lib: library for profiling the cold boot path
The non secure world would like to profile the boot path for
the EL3 and S-EL1 firmwares. To allow it to do that, a non-secure
DRAM region (4K) is allocated and the base address is passed to
the EL3 firmware.
This patch adds a library to allow the platform code to store the
tag:timestamp pair to the shared memory. The tegra platform code
then uses the `record` method to add timestamps.
Original change by Akshay Sharan <asharan@nvidia.com>
Change-Id: Idbbef9c83ed84a508b04d85a6637775960dc94ba
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
diff --git a/plat/nvidia/tegra/include/tegra_private.h b/plat/nvidia/tegra/include/tegra_private.h
index c7636f6..f55f5df 100644
--- a/plat/nvidia/tegra/include/tegra_private.h
+++ b/plat/nvidia/tegra/include/tegra_private.h
@@ -44,6 +44,8 @@
int32_t uart_id;
/* L2 ECC parity protection disable flag */
int32_t l2_ecc_parity_prot_dis;
+ /* SHMEM base address for storing the boot logs */
+ uint64_t boot_profiler_shmem_base;
} plat_params_from_bl2_t;
/*******************************************************************************