SMMU and MC registers are saved as part of the System Suspend sequence.
The register list includes some NS world SMMU registers that need to be
saved by NS world software instead. All that remains as a result are
the MC registers.
This patch moves code to MC file as a result and renames all the
variables and defines to use the MC prefix instead of SMMU. The
Tegra186 and Tegra194 platform ports are updated to provide the MC
context register list to the parent driver. The memory required for
context save is reduced due to removal of the SMMU registers.
Change-Id: I83a05079039f52f9ce91c938ada6cd6dfd9c843f
Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com>
PCIE0R1 security and override registers need to be preserved across
system suspend. Adding them to system suspend save register list.
Due to addition of above registers, increasing context save memory
by 2 bytes.
Change-Id: I1b3a56aee31f3c11e3edc2fb0a6da146eec1a30d
Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com>
Tegra194 supports multiple SMMU blocks. This patch adds support to
save register values for SMMU0 and SMMU2, before entering the System
Suspend state.
Change-Id: I3a376cdb606ea057ad7047714717245f9dced5cf
Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com>
This patch adds support to save the system suspend entry and exit
markers to TZDRAM to help the trampoline code decide if the current
warmboot is actually an exit from System Suspend.
The Tegra194 platform handler sets the system suspend entry marker
before entering SC7 state and the trampoline flips the state back to
system resume, on exiting SC7.
Change-Id: I29d73f1693c89ebc8d19d7abb1df1e460eb5558e
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
This patch adds a helper function to get the SMMU context's offset
and uses another helper function to get the CPU trampoline offset.
These helper functions are used by the System Suspend entry sequence
to save the SMMU context and CPU reset handler to TZDRAM.
Change-Id: I95e2862fe37ccad00fa48ec165c6e4024df01147
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
This patch cleans up all references to the Tegra186 family of SoCs.
Change-Id: Ife892caba5f2523debacedf8ec465289def9afd0
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
TEGRA186_SMMU_CTX_SIZE should match the numbe of elements
in smmu_ctx_regs, which is defined in smmu_plat_config.h.
The current number of elements are 0x490.
Change-Id: If0614ea8ef8b6a8f5da1a3279abaf9255eb76420
Signed-off-by: Stefan Kristiansson <stefank@nvidia.com>
This patch creates the base commit for the Tegra194 platform, from
Tegra186 code base.
Change-Id: I1c77e4984f7ff39655f3fb79633d13d533707ede
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Pritesh Raithatha
Varun Wadekar
Stefan Kristiansson