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This patch empowers the platforms to provide an array with the
registers that must be saved/restored across System Suspend.
Original-change-by: Pritesh Raithatha <praithatha@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch makes the default implementation of plat_core_pos_by_mpidr()
as weakly linked, so that platforms can override it with their own.

Tegra186, for one, does not have CPU IDs 2 and 3, so it has its own
implementation of plat_core_pos_by_mpidr().

Change-Id: I7a5319869c01ede3775386cb95af1431792f74b3
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch empowers the platforms to provide the settings (e.g. stream ID,
security setting, transaction overrides) required by the Memory Controller
driver. This allows the platforms to program the Memory Controller as per
their needs and makes the driver scalable.
Original-change-by: Pritesh Raithatha <praithatha@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This ARI call enables the EDBGREQ feature in the CCPLEX,
which will cause the CPUs to enter debug state instead of
vectoring to sw (ie MCA handler) upon receiving an async
abort signal.

Change-Id: Ifcb0e11446b6ac55179e3350d8f02b60ba32c94d
Signed-off-by: Rich Wiley <rwiley@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch updates the ARI header file to v3.1.

Change-Id: I3e58cf50d27fb6e72062bb9d9782b75296b32025
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch fixes the variable width to store the TZDRAM base
address used to resume from System Suspend.

Change-Id: Ib67eda64b09f26fb2f427f0d624f057081473132
Signed-off-by: Steven Kao <skao@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch adds a config to the memory controller driver to enable SMMU
device init during boot. Tegra186 platforms keeps it enabled by default,
but future platforms might not support it.

Change-Id: Iebe1c60a25fc1cfb4c97a507e121d6685a49cb83
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch adds a new SMC function ID to read the refclk and coreclk
clock counter values from the Activity Monitor. The non-secure world
requires this information to calculate the CPU's frequency.

Formula: "freq = (delta_coreclk / delta_refclk) * refclk_freq"

The following CPU registers have to be set by the non-secure driver
before issuing the SMC:

X1 = MPIDR of the target core
X2 = MIDR of the target core

Change-Id: I296d835def1f5788c17640c0c456b8f8f0e90824
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch adds a new config to enable MC settings for the AFIW
and AFIR devices. Platforms must enable this config on their own.

Change-Id: I53b450117e4764ea76d9347ee2928f9be178b107
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch moves the smmu driver introduced by the Tegra186 port
to tegra/common so that future chips can (re)use it.

Change-Id: Ia44c7f2a62fb2d8869db3a44742a8c6b13c49036
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch splits the MCE driver into public and private interfaces
to allow usage of common functionality across multiple SoCs.

Change-Id: Ib58080e730d72f11ff79507d8e0acffb2ad5c606
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch moves the MCE's configurable parameters to tegra_def.h for
the Tegra186 SoC, to allow forward compatiblity.

Change-Id: If8660c1c09908a4064dbb67d5ca4fb78389cab13
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch updates wake time of the cpu to use the MSBs and zero
out the LSB's. Only 24 out of 32 bits are currently passed
through the PSCI interface. Previously all the LSB's were used.

Change-Id: Ie2d9d1bf6e3003dd47526a124f64e6ad555d2371
Signed-off-by: Krishna Sitaraman <ksitaraman@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

The TEGRA_ARI_COPY_MISCREG_AA64_RST ARI should be called with
request_lo/hi set to zero. MTS automatically takes the reset
vector from MISCREG_AA64_RST register and does not need it to
be passed as parameters.  This patch updates the API and the
caller function accordingly.

Change-Id: Ie3e3402d93951102239d988ca9f0cdf94f290d2f
Signed-off-by: Krishna Sitaraman <ksitaraman@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

When entering C7, ATF disables caches and flushes the L1 cache. However,
wake_time[cpu] can still remain in the L2 cache, causing later reads to it
to fetch from DRAM. This will read stale values.

Fix this by aligning wake_time[cpu] to cache lines, and explicitly cleaning it
before disabling caches.

Change-Id: Id73d095b479677595a6b3dd0abb240a1fef5f311
Signed-off-by: Mustafa Yigit Bilgen <mbilgen@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch updates the ARI header to version 3.0

Change-Id: I7cfe0c61c80a6b78625232135dd63393602d32fe
Signed-off-by: Krishna Sitaraman <ksitaraman@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

The TZRAM memory loses its state during "System Suspend". This patch
check if TZRAM base address contains valid data, to decide if the system
is exiting from "System Suspend". To enable TZDRAM encryption, the Memory
Controller's TZDRAM base/size registers would be populated by the BPMP
when the system "wakes up".

Change-Id: I5fc8ba1ae3bce12f0ece493f6f9f5f4d92a46344
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This change adds function to invoke for MISC_CCPLEX ARI calls and
the corresponding smc handler. This can be used to enable/disable
Coresight clock gating.

Change-Id: I4bc17aa478a46c29bfe17fd74f839a383ee2b644
Signed-off-by: Krishna Sitaraman <ksitaraman@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch fixes the incorrect return value that was being passed
back for the ENUM_FEATURES ARI call.

Change-Id: I3842c6ce27ea24698608830cf4c12cfa7ff64421
Signed-off-by: Krishna Sitaraman <ksitaraman@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch clears the unused or reserved ARI input registers
before issuing the actual ARI command.

Change-Id: I454b86566bfe088049a5c63527c1323d7b25248a
Signed-off-by: Krishna Sitaraman <ksitaraman@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch runs the MCE firmware's version check only if the underlying
platform has the capability to the run the firmware. MCE firmware is not
running on simulation platforms, identified by v0.3 or v0.6, read from the
Tegra Chip ID value.

Change-Id: I3b1788b1ee2a0d4464017bb879ac5792cb7022b8
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch uses helper functions to read the chips's major and minor
version values.

Change-Id: I5b2530a31af5ab3778a8aa63380def4e9f9ee6ec
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch adds all the UART controllers to the memory map.

Change-Id: I035e55ca7bff0a96115102f2295981f9e3a5da6b
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Commit f3d3b316

 replaced
plat_get_syscnt_freq by plat_get_syscnt_freq2 on all the
upstream platforms. This patch modifies the Tegra186 code
which is not present usptream, yet.

Change-Id: Ieda6168050a7769680a3a94513637fed03463a2d
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch disables TCU prefetch for all the contexts in order
to improve SMMU performance.

Change-Id: I82ca49a0e396d9f064f5c62a5f00c4b2101d8459
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch overrides the default handlers to get BL31 arguments from the
previous bootloader. The previous bootloader stores the pointer to the
arguments in PMC secure scratch register #53.

BL31 is the first component running on the CPU, as there isn't a previous
bootloader. We set the RESET_TO_BL31 flag to enable the path which assumes
that there are no input parameters passed by the previous bootloader.

Change-Id: Idacc1df292a70c9c1cb4d5c3a774bd796175d5e8
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch removes duplicate code from the platform's SiP handler
routine for processing Video Memory Carveout region requests and
uses the common SiP handler instead.

Change-Id: Ib307de017fd88d5ed3c816288327cae750a67806
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Commit c073fda1

 upstream changed the
return type for `plat_get_syscnt_freq()` from uint64_t to unsigned
long long.

This patch modifies the return type for the Tegra186 platform.

Change-Id: Ic9e5c364b90972265576e271582a4347e5eaa6eb
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch enables ECC and Parity Protection for Cortex-A57 CPUs during boot,
for Tegra186 A02p SKUs.

Change-Id: I8522a6cb61f5e4fa9e0471f558a0c3ee8078370e
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Uncore perfmon appears to the CPU as a set of uncore perfmon registers
which can be read and written using the ARI interface. The MCE code
sequence handles reads and writes to these registers by manipulating
the underlying T186 uncore hardware.

To access an uncore perfmon register, CPU software writes the ARI
request registers to specify

* whether the operation is a read or a write,
* which uncore perfmon register to access,
* the uncore perfmon unit, group, and counter number (if necessary),
* the data to write (if the operation is a write).

It then initiates an ARI request to run the uncore perfmon sequence in
the MCE and reads the resulting value of the uncore perfmon register
and any status information from the ARI response registers.

The NS world's MCE driver issues MCE_CMD_UNCORE_PERFMON_REQ command
for the EL3 layer to start the entire sequence. Once the request
completes, the NS world would receive the command status in the X0
register and the command data in the X1 register.

Change-Id: I20bf2eca2385f7c8baa81e9445617ae711ecceea
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch implements the `get_target_pwr_state` handler for Tegra186
SoCs. The SoC port uses this handler to find out the cluster/system
state during CPU_SUSPEND, CPU_OFF and SYSTEM_SUSPEND calls.

The MCE firmware controls the power state of the CPU/CLuster/System,
so we query it to get the state and act accordingly.

Change-Id: I86633d8d79aec7dcb405d2301ac69910f93110fe
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch adds a helper function to the MCE driver to allow its
clients to issue UPDATE_CSTATE_INFO requests, without having to
setup the CPU context struct.

We introduced a struct to encapsulate the request parameters, that
clients can pass on to the MCE driver. The MCE driver gets the
parameters from the struct and programs the hardware accordingly.

Change-Id: I02bce57506c4ccd90da82127805d6b564375cbf1
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch resets the CPU power state info when we online any CPU. The
NS world software would re-init the CPU power state after the CPU gets
online anyways. This allows us to maintain proper CPU/cluster power
states in the MCE firmware at all times.

Change-Id: Ib24054f53df720a4f88d67b2cb5a2e036e475e14
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch fixes the "Recursion in included headers" error flagged by
Coverity.

Fixes coverity errors "31858: Recursion in included headers" and
"31857: Recursion in included headers"

Change-Id: Icf8838434b1808b396e743e47f59adc452546364
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch resets the power state info for CPUs when onlining,
as we set deepest power when offlining a core but that may not
be requested by non-secure sw which controls idle states. It
will re-init this info from non-secure software when the core
come online.

Original change by Prashant Gaikwad <pgaikwad@nvidia.com>

Change-Id: Id6c2fa2b821c7705aafbb561a62348c36fd3abd8
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

The Tegra simulation environment has limited capabilities. This patch
checks the chip's major and minor versions to decide the features to
enable/disable - MCE firmware version checking is disabled and limited
Memory Controller settings are enabled

Change-Id: I258a807cc3b83cdff14a9975b4ab4f9d1a9d7dcf
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch checks that the system is running with the supported MCE
firmware during boot. In case the firmware version does not match the
interface header version, then the system halts.

Change-Id: Ib82013fd1c1668efd6f0e4f36cd3662d339ac076
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch fixes the programming sequence for 'System Suspend' and
'Quasi power down' state entry. The device needs to update the
required power state before querying the MCE firmware to see the
entry to that power state is allowed.

Original change by Allen Yu <alleny@nvidia.com>

Change-Id: I65e03754322188af913fabf41f29d1c3595afd85
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch programs the default CPU wake mask during CPU_SUSPEND. This
reduces the CPU_SUSPEND latency as the system has to send one less SMC
before issuing the actual suspend request.

Original change by Krishna Sitaraman <ksitaraman@nvidia.com>

Change-Id: I1f9351dde4ab30936070e9f42c2882fa691cbe46
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch clears the system cstate when offlining a CPU core as we
need to update the sytem cstate to SC7 only when we enter system
suspend.

Original change by Prashant Gaikwad <pgaikwad@nvidia.com>

Change-Id: I1cff9bbab4db7d390a491c8939aea5db6c6b5c59
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>