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  1. 01 Aug, 2017 2 commits
    • Jeenu Viswambharan's avatar
      FVP: Add support for multi-threaded CPUs · 11ad8f20
      Jeenu Viswambharan authored 
      

ARM CPUs with multi-threading implementation has more than one
Processing Element in a single physical CPU. Such an implementation will
reflect the following changes in the MPIDR register:

  - The MT bit set;

  - Affinity levels pertaining to cluster and CPUs occupy one level
    higher than in a single-threaded implementation, and the lowest
    affinity level pertains to hardware threads. MPIDR affinity level
    fields essentially appear shifted to left than otherwise.

The FVP port henceforth assumes that both properties above to be
concomitant on a given FVP platform.

To accommodate for varied MPIDR formats at run time, this patch
re-implements the FVP platform-specific functions that translates MPIDR
values to a linear indices, along with required validation. The same
treatment is applied for GICv3 MPIDR hashing function as well.

An FVP-specific build option FVP_MAX_PE_PER_CPU is introduced which
specifies the maximum number of threads implemented per CPU. For
backwards compatibility, its value defaults to 1.

Change-Id: I729b00d3e121d16ce9a03de4f9db36dfac580e3f
Signed-off-by: default avatarJeenu Viswambharan <jeenu.viswambharan@arm.com>
      11ad8f20
    • Jeenu Viswambharan's avatar
      FVP: Fix AArch32 stack functions to be ABI-compliant · eecdf19b
      Jeenu Viswambharan authored 
      

plat_get_my_stack is called from C, so it can't expect argument
registers to be preserved. Stash registers temporarily onto the stack
instead.

plat_set_my_stack is called during early init, when there exists no
stack. Use any register other than argument registers to stash temporary
values.

Change-Id: I98052e20671d0933201d45ec7a5affccd71ce08c
Signed-off-by: default avatarJeenu Viswambharan <jeenu.viswambharan@arm.com>
      eecdf19b
  3. 26 Jul, 2017 2 commits
    • Sandrine Bailleux's avatar
      xlat lib v2: Expose *_ctx() APIs · a9ad848c
      Sandrine Bailleux authored 
      

In a previous patch, the xlat_ctx_t type has been made public.
This patch now makes the *_ctx() APIs public.

Each API now has a *_ctx() variant. Most of them were already implemented
and this patch just makes them public. However, some of them were missing
so this patch introduces them.

Now that all these APIs are public, there's no good reason for splitting
them accross 2 files (xlat_tables_internal.c and xlat_tables_common.c).
Therefore, this patch moves all code into xlat_tables_internal.c and
removes xlat_tables_common.c. It removes it from the library's makefile
as well.

This last change introduces a compatibility break for platform ports
that specifically include the xlat_tables_common.c file instead of
including the library's Makefile. The UniPhier platform makefile has
been updated to now omit this file from the list of source files.

The prototype of mmap_add_region_ctx() has been slightly changed. The
mmap_region_t passed in argument needs to be constant because it gets
called from map_add(), which receives a constant region. The former
implementation of mmap_add() used to cast the const qualifier away,
which is not a good practice.

Also remove init_xlation_table(), which was a sub-function of
init_xlat_tables(). Now there's just init_xlat_tables() (and
init_xlat_tables_ctx()). Both names were too similar, which was
confusing. Besides, now that all the code is in a single file,
it's no longer needed to have 2 functions for that.

Change-Id: I4ed88c68e44561c3902fbebb89cb197279c5293b
Signed-off-by: default avatarSandrine Bailleux <sandrine.bailleux@arm.com>
      a9ad848c
    • Leo Yan's avatar
      hikey: Disable VBUS_DET interrupt for PMIC · c9e8774c
      Leo Yan authored 
      

After disconnect Jumper pin 1-2 in J15 header, the signal VBUS_DET is to
be pulled down to low level. This will assert the interrupt signal in
PMIC and trigger IRQ in GIC; the asserted signal from VBUS_DET is level
triggered and kernel reports the warning for unhooked interrupt handling;
and VBUS_DET stays with low level, this triggers IRQ storm in kernel.

This patch is to disable interrupt for VBUS_DET in PMIC, this can
dismiss the verbose log and IRQ storm after kernel booting.

[   40.835279] irq 57: nobody cared (try booting with the "irqpoll" option)
[   40.842075] CPU: 0 PID: 980 Comm: irq/57-hi655x-p Not tainted 4.4.77-568944-g576a0114dec8-dirty #667
[   40.851303] Hardware name: HiKey Development Board (DT)
[   40.856580] Call trace:
[   40.859060] [<ffffff800808c4cc>] dump_backtrace+0x0/0x1e0
[   40.864516] [<ffffff800808c8ac>] show_stack+0x20/0x28
[   40.869622] [<ffffff80084b9688>] dump_stack+0xa8/0xe0
[   40.874729] [<ffffff800812dd5c>] __report_bad_irq+0x40/0xec
[   40.880360] [<ffffff800812e0bc>] note_interrupt+0x1e4/0x2d8
[   40.885992] [<ffffff800812b11c>] handle_irq_event_percpu+0xd8/0x268
[   40.892324] [<ffffff800812b2f8>] handle_irq_event+0x4c/0x7c
[   40.897955] [<ffffff800812ecbc>] handle_level_irq+0xcc/0x178
[   40.903672] [<ffffff800812a778>] generic_handle_irq+0x34/0x4c
[   40.909481] [<ffffff80085074c8>] pl061_irq_handler+0xa8/0x124
[   40.915286] [<ffffff800812a778>] generic_handle_irq+0x34/0x4c
[   40.921092] [<ffffff800812a820>] __handle_domain_irq+0x90/0xf8
[   40.926985] [<ffffff8008082620>] gic_handle_irq+0x58/0xa8
Signed-off-by: default avatarDmitry Shmidt <dimitrysh@google.com>
Signed-off-by: default avatarLeo Yan <leo.yan@linaro.org>
      c9e8774c
  5. 25 Jul, 2017 1 commit
  7. 20 Jul, 2017 3 commits
    • Soby Mathew's avatar
      CSS: Prevent SCP_BL2/2U from overwriting BL1 RW data · 1ea63d77
      Soby Mathew authored 
      

On ARM CSS platforms, the SCP_BL2/2U image is loaded below
BL1 read-write data. This same memory is used to load BL31
later on. But sufficient checks were not done to ensure that the
SCP_BL2 would not overwrite BL1 rw data. This patch adds the
required CASSERT checks to prevent overwrite into BL1 or BL2
memory by load of SCP_BL2/2U. Also the size of BL31 is increased
and SCP_BL2/2U size is decreased to accomodate it within the
allocated region.

Change-Id: I23b28b5e1589e91150852a06452bd52b273216ee
Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
      1ea63d77
    • Soby Mathew's avatar
      CSS: Reorganize the SCP Image transfer functionality · 74d44a49
      Soby Mathew authored 
      

The SCP_BL2 is transferred to SCP during BL2 image load and authenticate
sequence. The Boot-Over-MHU (BOM) protocol is used as transport for this. After
the SCP boots using the transferred image, the AP CPU waits till the `READY`
message is received from SCP. This patch separates the API for transport of
image from the wait for `READY` message and also moves the related files to
the `css/drivers` folder. The previous API `scp_bootloader_transfer` is
renamed to `css_scp_boot_image_xfer` to reflect the css naming convention.
This reorganisation also allows easier switch to a different transport
(eg: Shared Data Structure based transfer) in future

Change-Id: I8a96f9c4616ffde6dbfdf7c18f6f6f8bfa40bbf0
Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
      74d44a49
    • Soby Mathew's avatar
      Resize the BL2 size limit for Juno · 6c401f31
      Soby Mathew authored 
      

Recent patches to reduce the memory footprint of BL images have
resulted in saving several pages of memory. This patch reduces
the BL2 size limit by 20KB for Juno when ARM_BOARD_OPTIMISE_MEM=1
so that more free space can be freed up for Trusted OS (BL32). Also
SCP_BL2/SCP_BL2U size is now restricted to 80K.

Change-Id: I1573d7a34e24d15e4abce8a14da40dbb5dc81e37
Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
      6c401f31
  9. 14 Jul, 2017 3 commits
  11. 12 Jul, 2017 5 commits
  13. 11 Jul, 2017 1 commit
  15. 10 Jul, 2017 1 commit
  17. 05 Jul, 2017 1 commit
  19. 02 Jul, 2017 1 commit
  21. 30 Jun, 2017 1 commit
    • Caesar Wang's avatar
      rockchip/rk3399: fixes the typo and the WARNINGS during suspend/resume · c3710ee7
      Caesar Wang authored 
      

This patch fixes the two things as follows:

1) rk3399_flash_l2_b" seems to be a typo. That's "flush", not "flash".

2) fixes the warnings log.
We always hit the warnings thing during the suspend, as below log:
..
[   51.022334] CPU5: shutdown
[   51.025069] psci: CPU5 killed.
INFO:    sdram_params->ddr_freq = 928000000
WARNING: rk3399_flash_l2_b:reg 28830380,wait

When the L2 completes the clean and invalidate sequence, it asserts the
L2FLUSHDONE signal. The SoC can now deassert L2FLUSHREQ signal and then
the L2 deasserts L2FLUSHDONE.

Then, a loop without a delay isn't really great to measure time. We should
probably add a udelay(10) or so in there and then maybe replace the WARN()
after the loop. In the actual tests, the L2 cache will take ~4ms by
default for big cluster.

In the real world that give 10ms for the enough margin, like the
ddr/cpu/cci frequency and other factors that will affect it.

Change-Id: I55788c897be232bf72e8c7b0e10cf9b06f7aa50d
Signed-off-by: default avatarCaesar Wang <wxt@rock-chips.com>
      c3710ee7
  23. 28 Jun, 2017 3 commits
    • Soby Mathew's avatar
      Use CryptoCell to set/get NVcounters and ROTPK · f143cafe
      Soby Mathew authored 
      

This patch implements the platform APIs plat_get_rotpk_info,
plat_get_nv_ctr, plat_set_nv_ctr to invoke CryptoCell SBROM
APIs when ARM_CRYPTOCELL_INT is set.

Change-Id: I693556b3c7f42eceddd527abbe6111e499f55c45
Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
      f143cafe
    • Soby Mathew's avatar
      ARM plat changes to enable CryptoCell integration · e60f2af9
      Soby Mathew authored 
      

This patch makes the necessary changes to enable ARM platform to
successfully integrate CryptoCell during Trusted Board Boot. The
changes are as follows:

* A new build option `ARM_CRYPTOCELL_INTEG` is introduced to select
  the CryptoCell crypto driver for Trusted Board boot.

* The TrustZone filter settings for Non Secure DRAM is modified
  to allow CryptoCell to read this memory. This is required to
  authenticate BL33 which is loaded into the Non Secure DDR.

* The CSS platforms are modified to use coherent stacks in BL1 and BL2
  when CryptoCell crypto is selected. This is because CryptoCell makes
  use of DMA to transfer data and the CryptoCell SBROM library allocates
  buffers on the stack during signature/hash verification.

Change-Id: I1e6f6dcd1899784f1edeabfa2a9f279bbfb90e31
Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
      e60f2af9
    • Caesar Wang's avatar
      rockchip: enable A53's erratum 855873 for rk3399 · dea1e8ee
      Caesar Wang authored 
      

For rk3399, the L2ACTLR[14] is 0 by default, as ACE CCI-500 doesn't
support WriteEvict. and you will hit the condition L2ACTLR[3] with 0,
as the Evict transactions should propagate to CCI-500 since it has
snoop filters.

Maybe this erratum applies to all Cortex-A53 cores so far, especially
if RK3399's A53 is a r0p4. we should enable it to avoid data corruption,

Change-Id: Ib86933f1fc84f8919c8e43dac41af60fd0c3ce2f
Signed-off-by: default avatarCaesar Wang <wxt@rock-chips.com>
      dea1e8ee
  25. 27 Jun, 2017 1 commit
    • David Cunado's avatar
      Resolve signed-unsigned comparison issues · 0dd41951
      David Cunado authored 
      A recent commit 030567e6

 added U()/ULL()
macro to TF constants. This has caused some signed-unsigned comparison
warnings / errors in the TF static analysis.

This patch addresses these issues by migrating impacted variables from
signed ints to unsigned ints and vice verse where applicable.

Change-Id: I4b4c739a3fa64aaf13b69ad1702c66ec79247e53
Signed-off-by: default avatarDavid Cunado <david.cunado@arm.com>
      0dd41951
  27. 26 Jun, 2017 3 commits
  29. 23 Jun, 2017 1 commit
  31. 22 Jun, 2017 2 commits
    • Douglas Raillard's avatar
      Apply workarounds for A53 Cat A Errata 835769 and 843419 · a94cc374
      Douglas Raillard authored 
      These errata are only applicable to AArch64 state. See the errata notice
for more details:
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.epm048406/index.html



Introduce the build options ERRATA_A53_835769 and ERRATA_A53_843419.
Enable both of them for Juno.

Apply the 835769 workaround as following:
* Compile with -mfix-cortex-a53-835769
* Link with --fix-cortex-a53-835769

Apply the 843419 workaround as following:
* Link with --fix-cortex-a53-843419

The erratum 843419 workaround can lead the linker to create new sections
suffixed with "*.stub*" and 4KB aligned. The erratum 835769 can lead the
linker to create new "*.stub" sections with no particular alignment.

Also add support for LDFLAGS_aarch32 and LDFLAGS_aarch64 in Makefile for
architecture-specific linker options.

Change-Id: Iab3337e338b7a0a16b0d102404d9db98c154f8f8
Signed-off-by: default avatarDouglas Raillard <douglas.raillard@arm.com>
      a94cc374
    • dp-arm's avatar
      aarch64: Enable Statistical Profiling Extensions for lower ELs · d832aee9
      dp-arm authored 
      

SPE is only supported in non-secure state.  Accesses to SPE specific
registers from SEL1 will trap to EL3.  During a world switch, before
`TTBR` is modified the SPE profiling buffers are drained.  This is to
avoid a potential invalid memory access in SEL1.

SPE is architecturally specified only for AArch64.

Change-Id: I04a96427d9f9d586c331913d815fdc726855f6b0
Signed-off-by: default avatardp-arm <dimitris.papastamos@arm.com>
      d832aee9
  33. 20 Jun, 2017 5 commits
    • Masahiro Yamada's avatar
      uniphier: embed ROTPK hash into BL1/BL2 · 63634800
      Masahiro Yamada authored 
      

Currently, ROTPK_NOT_DEPLOYED flag is set in plat_get_rotpk_info().
It is up to users how to retrieve ROTPK if the ROT verification is
desired.  This is not nice.

This commit improves plat_get_rotpk_info() implementation and automates
the ROTPK deployment.  UniPhier platform has no ROTPK storage, so it
should be embedded in BL1/BL2, like ARM_ROTPK_LOCATION=devel_rsa case.
This makes sense because UniPhier platform implements its internal ROM
i.e. BL1 is used as updatable pseudo ROM.

Things work like this:

- ROT_KEY (default: $(BUILD_PLAT)/rot_key.pem) is created if missing.
  Users can override ROT_KEY from the command line if they want to
  use a specific ROT key.

- ROTPK_HASH is generated based on ROT_KEY.

- ROTPK_HASH is included by uniphier_rotpk.S and compiled into BL1/BL2.

- ROT_KEY is input to cert_create tool.
Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      63634800
    • Dimitris Papastamos's avatar
      juno: Fix AArch32 build · c9711432
      Dimitris Papastamos authored 
      Commit 6de8b24f

 broke Juno AArch32
build.

Change-Id: Ied70d9becb86e53ccb46a2e3245e2a551d1bf701
Signed-off-by: default avatarDimitris Papastamos <dimitris.papastamos@arm.com>
      c9711432
    • Dimitris Papastamos's avatar
      sp_min: Implement `sp_min_plat_runtime_setup()` · 21568304
      Dimitris Papastamos authored 
      

On ARM platforms before exiting from SP_MIN ensure that
the default console is switched to the runtime serial port.

Change-Id: I0ca0d42cc47e345d56179eac16aa3d6712767c9b
Signed-off-by: default avatarDimitris Papastamos <dimitris.papastamos@arm.com>
      21568304
    • David Cunado's avatar
      Resolve build errors flagged by GCC 6.2 · 568ac1f7
      David Cunado authored 
      

With GCC 6.2 compiler, more C undefined behaviour is being flagged as
warnings, which result in build errors in ARM TF build.

This patch addresses issue caused by enums with values that exceed
maximum value for an int. For these cases the enum is converted to
a set of defines.

Change-Id: I5114164be10d86d5beef3ea1ed9be5863855144d
Signed-off-by: default avatarDavid Cunado <david.cunado@arm.com>
      568ac1f7
    • David Cunado's avatar
      hikey960: migrate to use A53 specific defines · 0d5eb656
      David Cunado authored 
      The patch fb7d32e5

 migrated the CPU
libraries to have unique defines, prefixing them with the CPU name.

This patch migrates the hikey960 platform port to use the A53 specific
defines.

Change-Id: Id76f544b0b236bbd4974ab5ffa1203f073c20021
Signed-off-by: default avatarDavid Cunado <david.cunado@arm.com>
      0d5eb656
  35. 19 Jun, 2017 1 commit
    • Leo Yan's avatar
      plat: Hikey960: fix the CPU hotplug · 0aedca71
      Leo Yan authored 
      

In CPU off callback function, the old code uses the function
hisi_test_pwrdn_allcores() to check if all CPUs in cluster have been
powered off and if it's valid then power off the whole cluster. But the
function hisi_test_pwrdn_allcores() only maintains the different power
states only for CPU suspend/resume flow, so it cannot return correct
states for CPU on/off flow.

This patch is to change use hisi_test_cpu_down() to check if all CPUs
have been powered off, so that can power off the whole cluster properly
when all CPUs in cluster have been hotplugged off.
Signed-off-by: default avatarTao Wang <kevin.wangtao@hisilicon.com>
Signed-off-by: default avatarLeo Yan <leo.yan@linaro.org>
      0aedca71
  37. 15 Jun, 2017 3 commits