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  1. 27 Nov, 2018 1 commit
    • Chandni Cherukuri's avatar
      plat/css: allow platforms to define the system power domain level · eff2f444
      Chandni Cherukuri authored 
      

The CSS_SYSTEM_PWR_DMN_LVL macro that defines the system power domain
level is fixed at ARM_PWR_LVL2 for all CSS platforms. However, the
system power domain level can be different for CSS platforms that
use multi-threaded CPUs.

So, in preparation towards adding support for platforms that use
multi-threaded CPUs, refactor the definition of CSS_SYSTEM_PWR_DMN_LVL
such that CSS_SYSTEM_PWR_DMN_LVL is uniquely defined for each of the
CSS platform.

Change-Id: Ia837b13f6865e71da01780993c048b45b7f36d85
Signed-off-by: default avatarChandni Cherukuri <chandni.cherukuri@arm.com>
      eff2f444
  3. 26 Nov, 2018 1 commit
    • Antonio Nino Diaz's avatar
      Synchronise arch.h and arch_helpers.h with TF-A-Tests · 932b3ae2
      Antonio Nino Diaz authored 
      

The headers forked at some point in the past and have diverged a lot. In
order to make it easier to share code between TF-A-Tests and TF-A, this
patch synchronises most of the definitions in the mentioned headers.

This is not a complete sync, it has to be followed by more cleanup.

This patch also removes the read helpers for the AArch32 instructions
ats1cpr and ats1hr (they are write-only).

Change-Id: Id13ecd7aeb83bd2318cd47156d71a42f1c9f6ba2
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      932b3ae2
  5. 22 Nov, 2018 2 commits
    • Antonio Nino Diaz's avatar
      Revert "aarch32: Apply workaround for errata 813419 of Cortex-A57" · c4cdd9e4
      Antonio Nino Diaz authored 
      This reverts commit 6f512a3d

.

According to the 'Cortex-A57 MPCore Software Developers Errata Notice':

    This bug will only affect secure AArch64 EL3. If the above
    conditions occur, the CPU will not invalidate the targeted EL3 TLB
    entries and incorrect translations might occur.

For this reason it is not needed in AArch32.

Change-Id: I6f7b333817515499723e8f306145790ad6af9975
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      c4cdd9e4
    • Antonio Nino Diaz's avatar
      xlat v2: Support mapping regions with allocated VA · 9056f108
      Antonio Nino Diaz authored 
      

Provide new APIs to add new regions without specifying the base VA.

- `mmap_add_region_alloc_va` adds a static region to mmap choosing as
  base VA the first possible address after all the currently mapped
  regions. It is aligned to an appropriate boundary in relation to the
  size and base PA of the requested region. No attempt is made to fill
  any unused VA holes.

- `mmap_add_dynamic_region_alloc_va` it adds a region the same way as
  `mmap_add_region_alloc_va` does, but it's dynamic instead of static.

- `mmap_add_alloc_va` takes an array of non const `mmap_region_t`,
  maps them in the same way as `mmap_add_region_alloc_va` and fills
  their `base_va` field. A helper macro has been created to help create
  the array, called `MAP_REGION_ALLOC_VA`.

Change-Id: I5ef3f82ca0dfd0013d2e8034aa22f13ca528ba37
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      9056f108
  7. 21 Nov, 2018 1 commit
  9. 15 Nov, 2018 4 commits
  11. 12 Nov, 2018 1 commit
  13. 09 Nov, 2018 3 commits
    • Yann Gautier's avatar
      stm32mp1: remove duplicate function declaration · 7227d892
      Yann Gautier authored 
      

It is already in include/drivers/st/stm32mp1_ddr_helpers.h.
Signed-off-by: default avatarYann Gautier <yann.gautier@st.com>
      7227d892
    • Yann Gautier's avatar
      stm32mp1: correct some static analysis tools issues · 3e6fab43
      Yann Gautier authored 
      

These issues wer found by sparse:

drivers/st/clk/stm32mp1_clk.c:1524:19:
 warning: incorrect type in assignment (different base types)
    expected restricted fdt32_t const [usertype] *pkcs_cell
    got unsigned int const [usertype] *

plat/st/stm32mp1/plat_image_load.c:13:6:
 warning: symbol 'plat_flush_next_bl_params' was not declared.
 Should it be static?
plat/st/stm32mp1/plat_image_load.c:21:16:
 warning: symbol 'plat_get_bl_image_load_info' was not declared.
 Should it be static?
plat/st/stm32mp1/plat_image_load.c:29:13:
 warning: symbol 'plat_get_next_bl_params' was not declared.
 Should it be static?

plat/st/stm32mp1/bl2_io_storage.c:40:10:
 warning: symbol 'block_buffer' was not declared. Should it be static?
Signed-off-by: default avatarYann Gautier <yann.gautier@st.com>
      3e6fab43
    • Yann Gautier's avatar
      psci: put __dead2 attribute after void in plat_psci_ops · 3c471c35
      Yann Gautier authored 
      

These warnings were issued by sparse:
plat/st/stm32mp1/stm32mp1_pm.c:365:36:
 warning: incorrect type in initializer (different modifiers)
    expected void ( *[noreturn] pwr_domain_pwr_down_wfi )( ... )
    got void ( [noreturn] *<noident> )( ... )
plat/st/stm32mp1/stm32mp1_pm.c:366:23:
 warning: incorrect type in initializer (different modifiers)
    expected void ( *[noreturn] system_off )( ... )
    got void ( [noreturn] *<noident> )( ... )
plat/st/stm32mp1/stm32mp1_pm.c:367:25:
 warning: incorrect type in initializer (different modifiers)
    expected void ( *[noreturn] system_reset )( ... )
    got void ( [noreturn] *<noident> )( ... )

This cannot be changed the other way in all platforms pm drivers
or else there is a compilation error:
plat/st/stm32mp1/stm32mp1_pm.c:234:1: error: attributes should be specified
 before the declarator in a function definition
Signed-off-by: default avatarYann Gautier <yann.gautier@st.com>
      3c471c35
  15. 08 Nov, 2018 1 commit
    • Antonio Nino Diaz's avatar
      Standardise header guards across codebase · c3cf06f1
      Antonio Nino Diaz authored 
      

All identifiers, regardless of use, that start with two underscores are
reserved. This means they can't be used in header guards.

The style that this project is now to use the full name of the file in
capital letters followed by 'H'. For example, for a file called
"uart_example.h", the header guard is UART_EXAMPLE_H.

The exceptions are files that are imported from other projects:

- CryptoCell driver
- dt-bindings folders
- zlib headers

Change-Id: I50561bf6c88b491ec440d0c8385c74650f3c106e
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      c3cf06f1
  17. 07 Nov, 2018 1 commit
    • Sandrine Bailleux's avatar
      Arm platforms: Fix DRAM address macros · 3d449de0
      Sandrine Bailleux authored 
      

On AArch32, ARM_DRAM1_BASE and ARM_DRAM1_SIZE constants are currently
32-bit values (because they are suffixed with UL and the value
0x80000000 fits in a unsigned long int, i.e. a 32-bit value). When
summing them up, the result overflows the maximum value that can be
encoded in a 32-bit value so it wraps around and does not result in
the expected value.

This patch changes the suffix of these constants into ULL so that they
always are 64-bit values.

Change-Id: I3b19b1805e35cc7e43050458df379081b1e882d5
Signed-off-by: default avatarSandrine Bailleux <sandrine.bailleux@arm.com>
      3d449de0
  19. 02 Nov, 2018 3 commits
  21. 01 Nov, 2018 4 commits
  23. 31 Oct, 2018 1 commit
    • Konstantin Porotchkin's avatar
      plat: marvell: Add support for Armada-37xx SoC platform · 1e66bacb
      Konstantin Porotchkin authored 
      

Add supprot for Marvell platforms based on Armada-37xx SoC.
This includes support for the official Armada-3720 modular
development board and EspressoBin community board.
The Armada-37xx SoC contains dual Cortex-A53 Application CPU,
single secure CPU (Cortex-M3) and the following interfaces:
- SATA 3.0
- USB 3.0 and USB 2.0
- PCIe
- SDIO (supports boot from eMMC)
- SPI
- UART
- I2c
- Gigabit Ethernet
Signed-off-by: default avatarKonstantin Porotchkin <kostap@marvell.com>
      1e66bacb
  25. 30 Oct, 2018 1 commit
    • Antonio Nino Diaz's avatar
      libfdt: Downgrade to version 1.4.6-9 · 00f588bf
      Antonio Nino Diaz authored 
      

Version 1.4.7 introduces a big performance hit to functions that access
the FDT. Downgrade the library to version 1.4.6-9, before the changes
that introduce the problem. Version 1.4.6 isn't used because one of the
libfdt files (fdt_overlay.c) is missing the license header. This
problem is also fixed in 1.4.6-9.

This version corresponds to commit <aadd0b65c987> checks: centralize
printing of property names in failure messages.

Fixes ARM-software/tf-issues#643

Change-Id: I73c05f2b1f994bcdcc4366131ce0647553cdcfb8
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      00f588bf
  27. 29 Oct, 2018 8 commits
    • Antonio Nino Diaz's avatar
      Fix MISRA defects in PMF · 195e363f
      Antonio Nino Diaz authored 
      

No functional changes.

Change-Id: I64abd72026082218a40b1a4b8f7dc26ff2478ba6
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      195e363f
    • Antonio Nino Diaz's avatar
      Fix MISRA defects in workaround and errata framework · 43534997
      Antonio Nino Diaz authored 
      

No functional changes.

Change-Id: Iaab0310848be587b635ce5339726e92a50f534e0
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      43534997
    • Antonio Nino Diaz's avatar
      plat/arm: Fix MISRA defects in SiP SVC handler · 15b94cc1
      Antonio Nino Diaz authored 
      

No functional changes.

Change-Id: I9b9f8d3dfde08d57706ad5450de6ff858a55ac01
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      15b94cc1
    • Antonio Nino Diaz's avatar
      Fix MISRA defects in extension libs · 40daecc1
      Antonio Nino Diaz authored 
      

No functional changes.

Change-Id: I2f28f20944f552447ac4e9e755493cd7c0ea1192
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      40daecc1
    • Soby Mathew's avatar
      PIE: Position Independant Executable support for BL31 · 931f7c61
      Soby Mathew authored 
      

This patch introduces Position Independant Executable(PIE) support
in TF-A. As a initial prototype, only BL31 can support PIE. A trivial
dynamic linker is implemented which supports fixing up Global Offset
Table(GOT) and Dynamic relocations(.rela.dyn). The fixup_gdt_reloc()
helper function implements this linker and this needs to be called
early in the boot sequence prior to invoking C functions. The GOT is
placed in the RO section of BL31 binary for improved security and the
BL31 linker script is modified to export the appropriate symbols
required for the dynamic linker.

The C compiler always generates PC relative addresses to linker symbols
and hence referencing symbols exporting constants are a problem when
relocating the binary. Hence the reference to the
`__PERCPU_TIMESTAMP_SIZE__` symbol in PMF is removed and is now calculated
at runtime based on start and end addresses.

Change-Id: I1228583ff92cf432963b7cef052e95d995cca93d
Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
      931f7c61
    • Soby Mathew's avatar
      Make errata reporting mandatory for CPU files · 12af5ed4
      Soby Mathew authored 
      

Previously the errata reporting was optional for CPU operation
files and this was achieved by making use of weak reference to
resolve to 0 if the symbol is not defined. This is error prone
when adding new CPU operation files and weak references are
problematic when fixing up dynamic relocations. Hence this patch
removes the weak reference and makes it mandatory for the CPU
operation files to define the errata reporting function.

Change-Id: I8af192e19b85b7cd8c7579e52f8f05a4294e5396
Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
      12af5ed4
    • Soby Mathew's avatar
      PIE: Use PC relative adrp/adr for symbol reference · f1722b69
      Soby Mathew authored 
      

This patch fixes up the AArch64 assembly code to use
adrp/adr instructions instead of ldr instruction for
reference to symbols. This allows these assembly
sequences to be Position Independant. Note that the
the reference to sizes have been replaced with
calculation of size at runtime. This is because size
is a constant value and does not depend on execution
address and using PC relative instructions for loading
them makes them relative to execution address. Also
we cannot use `ldr` instruction to load size as it
generates a dynamic relocation entry which must *not*
be fixed up and it is difficult for a dynamic loader
to differentiate which entries need to be skipped.

Change-Id: I8bf4ed5c58a9703629e5498a27624500ef40a836
Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
      f1722b69
    • Soby Mathew's avatar
      Add helper to return reference to a symbol · 6a7b3005
      Soby Mathew authored 
      

This patch adds a utility function to return
the address of a symbol. By default, the compiler
generates adr/adrp instruction pair to return
the reference and this utility is used to override
this compiler generated to code and use `ldr`
instruction.

This is needed for Position Independent Executable
when it needs to reference a symbol which is constant
and does not depend on the execute address of the
binary.

For example, on the FVP, the GICv3 register context is
stored in a secure carveout (arm_el3_tzc_dram) within
DDR and does not relocate with the BL image. Now if
BL31 is executing at a different address other than
the compiled address, using adrp/adr instructions to
reference this memory will not work as they generate an
address that is PC relative. The way to get around this
problem is to reference it as non-PC relative (i.e
non-relocatable location) via `ldr` instruction.

Change-Id: I5008a951b007144258121690afb68dc8e12ee6f7
Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
      6a7b3005
  29. 26 Oct, 2018 4 commits
  31. 23 Oct, 2018 4 commits