Achin Gupta [Fri, 18 Jul 2014 17:38:28 +0000 (18:38 +0100)]
Simplify management of SCTLR_EL3 and SCTLR_EL1
This patch reworks the manner in which the M,A, C, SA, I, WXN & EE bits of
SCTLR_EL3 & SCTLR_EL1 are managed. The EE bit is cleared immediately after reset
in EL3. The I, A and SA bits are set next in EL3 and immediately upon entry in
S-EL1. These bits are no longer managed in the blX_arch_setup() functions. They
do not have to be saved and restored either. The M, WXN and optionally the C
bit are set in the enable_mmu_elX() function. This is done during both the warm
and cold boot paths.
Fixes ARM-software/tf-issues#226
Change-Id: Ie894d1a07b8697c116960d858cd138c50bc7a069
Achin Gupta [Thu, 26 Jun 2014 10:12:37 +0000 (11:12 +0100)]
Remove the concept of coherent stacks
This patch removes the allocation of memory for coherent stacks, associated
accessor function and some dead code which called the accessor function. It also
updates the porting guide to remove the concept and the motivation behind using
stacks allocated in coherent memory.
Fixes ARM-software/tf-issues#198
Change-Id: I00ff9a04f693a03df3627ba39727e3497263fc38
Achin Gupta [Thu, 26 Jun 2014 08:58:52 +0000 (09:58 +0100)]
Remove coherent stack usage from the warm boot path
This patch uses stacks allocated in normal memory to enable the MMU early in the
warm boot path thus removing the dependency on stacks allocated in coherent
memory. Necessary cache and stack maintenance is performed when a cpu is being
powered down and up. This avoids any coherency issues that can arise from
reading speculatively fetched stale stack memory from another CPUs cache. These
changes affect the warm boot path in both BL3-1 and BL3-2.
The EL3 system registers responsible for preserving the MMU state are not saved
and restored any longer. Static values are used to program these system
registers when a cpu is powered on or resumed from suspend.
Change-Id: I8357e2eb5eb6c5f448492c5094b82b8927603784
Achin Gupta [Thu, 26 Jun 2014 07:59:07 +0000 (08:59 +0100)]
Make enablement of the MMU more flexible
This patch adds a 'flags' parameter to each exception level specific function
responsible for enabling the MMU. At present only a single flag which indicates
whether the data cache should also be enabled is implemented. Subsequent patches
will use this flag when enabling the MMU in the warm boot paths.
Change-Id: I0eafae1e678c9ecc604e680851093f1680e9cefa
Achin Gupta [Wed, 25 Jun 2014 18:26:22 +0000 (19:26 +0100)]
Remove coherent stack usage from the cold boot path
This patch reworks the cold boot path across the BL1, BL2, BL3-1 and BL3-2 boot
loader stages to not use stacks allocated in coherent memory for early platform
setup and enabling the MMU. Stacks allocated in normal memory are used instead.
Attributes for stack memory change from nGnRnE when the MMU is disabled to
Normal WBWA Inner-shareable when the MMU and data cache are enabled. It is
possible for the CPU to read stale stack memory after the MMU is enabled from
another CPUs cache. Hence, it is unsafe to turn on the MMU and data cache while
using normal stacks when multiple CPUs are a part of the same coherency
domain. It is safe to do so in the cold boot path as only the primary cpu
executes it. The secondary cpus are in a quiescent state.
This patch does not remove the allocation of coherent stack memory. That is done
in a subsequent patch.
Change-Id: I12c80b7c7ab23506d425c5b3a8a7de693498f830
danh-arm [Fri, 11 Jul 2014 13:17:05 +0000 (14:17 +0100)]
Merge pull request #162 from jcastillo-arm/jc/tf-issues/194
Allow FP register context to be optional at build time
danh-arm [Fri, 11 Jul 2014 13:16:13 +0000 (14:16 +0100)]
Merge pull request #164 from sandrine-bailleux/sb/bl30-support-v2
Add support for BL3-0 image (v2)
danh-arm [Fri, 11 Jul 2014 10:19:27 +0000 (11:19 +0100)]
Merge pull request #163 from sandrine-bailleux/sb/tf-issue-117-v2
fvp: Reuse BL1 and BL2 memory through image overlaying (v2)
Sandrine Bailleux [Mon, 23 Jun 2014 16:00:23 +0000 (17:00 +0100)]
Update the documentation about the memory layout on FVP
Update the "Memory layout on FVP platforms" section in the Firmware
Design document to reflect the overlaying of BL1 and BL2 images
by BL3-1 and BL3-2.
Also update the Porting Guide document to mention the
BL31_PROGBITS_LIMIT and BL32_PROGBITS_LIMIT constants.
Change-Id: I0b23dae5b5b4490a01be7ff7aa80567cff34bda8
Sandrine Bailleux [Tue, 24 Jun 2014 13:19:36 +0000 (14:19 +0100)]
Add support for BL3-0 image
- Add support for loading a BL3-0 image in BL2. Information about
memory extents is populated by platform-specific code. Subsequent
handling of BL3-0 is also platform specific.
The BL2 main function has been broken down to improve readability.
The BL3-2 image is now loaded before the BL3-3 image to align with
the boot flow.
- Build system: Add support for specifying a BL3-0 image that will be
included into the FIP image.
- IO FIP driver: Add support for identifying a BL3-0 image inside a
FIP image.
- Update the documentation to reflect the above changes.
Change-Id: I067c184afd52ccaa86569f13664757570c86fc48
Sandrine Bailleux [Mon, 16 Jun 2014 15:12:27 +0000 (16:12 +0100)]
fvp: Reuse BL1 and BL2 memory through image overlaying
This patch re-organizes the memory layout on FVP as to give the
BL3-2 image as much memory as possible.
Considering these two facts:
- not all images need to live in memory at the same time. Once
in BL3-1, the memory used by BL1 and BL2 can be reclaimed.
- when BL2 loads the BL3-1 and BL3-2 images, it only considers the
PROGBITS sections of those 2 images. The memory occupied by the
NOBITS sections will be touched only at execution of the BL3-x
images;
Then it is possible to choose the different base addresses such that
the NOBITS sections of BL3-1 and BL3-2 overlay BL1 and BL2.
On FVP we choose to put:
- BL1 and BL3-1 at the top of the Trusted RAM, with BL3-1 NOBITS
sections overlaying BL1;
- BL3-2 at the bottom of the Trusted RAM, with its NOBITS sections
overlaying BL2;
This is illustrated by the following diagram:
0x0404_0000 ------------ ------------------
| BL1 | <= | BL3-1 NOBITS |
------------ <= ------------------
| | <= | BL3-1 PROGBITS |
------------ ------------------
| BL2 | <= | BL3-2 NOBITS |
------------ <= ------------------
| | <= | BL3-2 PROGBITS |
0x0400_0000 ------------ ------------------
New platform-specific constants have been introduced to easily check
at link time that BL3-1 and BL3-2 PROGBITS sections don't overwrite
BL1 and BL2. These are optional and the platform code is free to define
them or not. If not defined, the linker won't attempt to check
image overlaying.
Fixes ARM-software/tf-issues#117
Change-Id: I5981d1c3d66ee70eaac8bd052630c9ac6dd8b042
danh-arm [Thu, 10 Jul 2014 13:45:19 +0000 (14:45 +0100)]
Merge pull request #157 from sandrine-bailleux/sb/tf-issue-109
TF issue 109
danh-arm [Thu, 10 Jul 2014 13:44:24 +0000 (14:44 +0100)]
Merge pull request #146 from danh-arm/dh/refactor-fvp-gic
Refactor fvp config and gic code
danh-arm [Thu, 10 Jul 2014 13:43:48 +0000 (14:43 +0100)]
Merge pull request #161 from danh-arm/lm/calc-tcr-bits
Calculate TCR bits based on VA and PA
Juan Castillo [Wed, 25 Jun 2014 16:26:36 +0000 (17:26 +0100)]
Allow FP register context to be optional at build time
CTX_INCLUDE_FPREGS make variable allows us to include or exclude FP
registers from context structure, in case FP is not used by TSPD.
Fixes ARM-software/tf-issues#194
Change-Id: Iee41af382d691340c7ae21830ad1bbf95dad1f4b
Dan Handley [Fri, 20 Jun 2014 08:43:15 +0000 (09:43 +0100)]
Refactor fvp gic code to be a generic driver
Refactor the FVP gic code in plat/fvp/fvp_gic.c to be a generic ARM
GIC driver in drivers/arm/gic/arm_gic.c. Provide the platform
specific inputs in the arm_gic_setup() function so that the driver
has no explicit dependency on platform code.
Provide weak implementations of the platform interrupt controller
API in a new file, plat/common/plat_gic.c. These simply call through
to the ARM GIC driver.
Move the only remaining FVP GIC function, fvp_gic_init() to
plat/fvp/aarch64/fvp_common.c and remove plat/fvp/fvp_gic.c
Fixes ARM-software/tf-issues#182
Change-Id: Iea82fe095fad62dd33ba9efbddd48c57717edd21
Dan Handley [Fri, 20 Jun 2014 11:02:01 +0000 (12:02 +0100)]
Refactor fvp_config into common platform header
Changed the fvp_config array in fvp_common.c into a struct and
moved into a new optional common platform header,
include/plat/common/plat_config.h. Removed the config definitions
in fvp_def.h and updated all references to the platform config.
This makes the interface to the platform config cleaner and uses
a little less RAM.
Fixes ARM-software/tf-issues#180
Change-Id: I58dd7b3c150f24f7ee230a26fd57c827853ba803
Lin Ma [Fri, 27 Jun 2014 23:56:30 +0000 (16:56 -0700)]
Calculate TCR bits based on VA and PA
Currently the TCR bits are hardcoded in xlat_tables.c. In order to
map higher physical address into low virtual address, the TCR bits
need to be configured accordingly.
This patch is to save the max VA and PA and calculate the TCR.PS/IPS
and t0sz bits in init_xlat_tables function.
Change-Id: Ia7a58e5372b20200153057d457f4be5ddbb7dae4
Sandrine Bailleux [Fri, 13 Jun 2014 13:48:18 +0000 (14:48 +0100)]
fvp: Properly detect the location of BL1 R/W data
There was already a rudimentary mechanism to detect whether BL1
R/W data was loaded at the top or bottom of memory. Basically,
- either BL1 was loaded at the very end of the trusted RAM
- in all other cases BL1 was considered sitting at the bottom of
the memory and the memory usage structure was updated accordingly,
potentially resulting in critical memory waste.
For instance, if BL1 R/W base address was set to
(TZRAM_END - 4096 - bl1_size), it would virtually occupy the whole
memory.
This patch improves the mechanism to detect the location of BL1
to avoid such scenarios.
Change-Id: I224a9edf0fe8d34208545d84b28b63f2bb830d03
Sandrine Bailleux [Tue, 24 Jun 2014 13:02:34 +0000 (14:02 +0100)]
Remove concept of top/bottom image loading
This concept is no longer required since we now support loading of
images at fixed addresses only.
The image loader now automatically detects the position of the image
inside the current memory layout and updates the layout such that
memory fragmentation is minimised.
The 'attr' field of the meminfo data structure, which used to hold
the bottom/top loading information, has been removed. Also the 'next'
field has been removed as it wasn't used anywhere.
The 'init_bl2_mem_layout()' function has been moved out of common
code and put in BL1-specific code. It has also been renamed into
'bl1_init_bl2_mem_layout'.
Fixes ARM-software/tf-issues#109
Change-Id: I3f54642ce7b763d5ee3b047ad0ab59eabbcf916d
Andrew Thoelke [Fri, 27 Jun 2014 13:10:04 +0000 (14:10 +0100)]
Merge pull request #151 from vikramkanigiri/vk/t133-code-readability
Simplify entry point information generation code on FVP
Andrew Thoelke [Fri, 27 Jun 2014 11:53:26 +0000 (12:53 +0100)]
Merge pull request #155 from athoelke/at/support-foundation-v2.1
Support later revisions of the Foundation FVP
Andrew Thoelke [Thu, 26 Jun 2014 13:27:26 +0000 (14:27 +0100)]
Support later revisions of the Foundation FVP
The code in the FVP port which checks the platform type and
revision information in the SYS_ID register strictly supported
only the first revision of the Base and Foundation FVPs.
The current check also does not reflect the fact that the
board revision field is 'local' to the board type (HBI field).
Support for a new Foundation model is required now, and the
checking code is relaxed to allow execution (with a diagnostic)
on unrecognised revisions of the Base and Foundation FVP.
Change-Id: I7cd3519dfb56954aafe5f52ce1fcea0ee257ba9f
Andrew Thoelke [Thu, 26 Jun 2014 22:02:28 +0000 (23:02 +0100)]
Merge pull request #154 from athoelke/at/inline-mmio
Inline the mmio accessor functions
Andrew Thoelke [Thu, 26 Jun 2014 22:01:43 +0000 (23:01 +0100)]
Merge pull request #153 from athoelke/at/remove-psci-mpidr
Remove current CPU mpidr from PSCI common code
Andrew Thoelke [Mon, 9 Jun 2014 11:44:21 +0000 (12:44 +0100)]
Remove current CPU mpidr from PSCI common code
Many of the interfaces internal to PSCI pass the current CPU
MPIDR_EL1 value from function to function. This is not required,
and with inline access to the system registers is less efficient
than requiring the code to read that register whenever required.
This patch remove the mpidr parameter from the affected interfaces
and reduces code in FVP BL3-1 size by 160 bytes.
Change-Id: I16120a7c6944de37232016d7e109976540775602
danh-arm [Tue, 24 Jun 2014 15:48:31 +0000 (16:48 +0100)]
Merge pull request #152 from jcastillo-arm/jc/tf-issues/073-v2
Remove all checkpatch errors from codebase
danh-arm [Tue, 24 Jun 2014 15:48:18 +0000 (16:48 +0100)]
Merge pull request #150 from sandrine-bailleux/sb/fix-plat-print-gic-regs
fvp: Fix register name in 'plat_print_gic_regs' macro
danh-arm [Tue, 24 Jun 2014 15:44:37 +0000 (16:44 +0100)]
Merge pull request #149 from sandrine-bailleux/sb/warn-missing-include-dirs
Compile with '-Wmissing-include-dirs' flag
danh-arm [Tue, 24 Jun 2014 15:44:12 +0000 (16:44 +0100)]
Merge pull request #147 from athoelke/at/remove-bakery-mpidr
Remove calling CPU mpidr from bakery lock API
Andrew Thoelke [Tue, 24 Jun 2014 13:18:35 +0000 (14:18 +0100)]
Inline the mmio accessor functions
Making the simple mmio_read_*() and mmio_write_*() functions inline
saves 360 bytes of code in FVP release build.
Fixes ARM-software/tf-issues#210
Change-Id: I65134f9069f3b2d8821d882daaa5fdfe16355e2f
Juan Castillo [Fri, 13 Jun 2014 16:05:10 +0000 (17:05 +0100)]
Remove all checkpatch errors from codebase
Exclude stdlib files because they do not follow kernel code style.
Fixes ARM-software/tf-issues#73
Change-Id: I4cfafa38ab436f5ab22c277cb38f884346a267ab
Vikram Kanigiri [Mon, 2 Jun 2014 13:59:00 +0000 (14:59 +0100)]
Simplify entry point information generation code on FVP
This patch reworks FVP specific code responsible for determining
the entry point information for BL3-2 and BL3-3 stages when BL3-1
is configured as the reset handler.
Change-Id: Ia661ff0a6a44c7aabb0b6c1684b2e8d3642d11ec
Sandrine Bailleux [Tue, 3 Jun 2014 08:52:26 +0000 (09:52 +0100)]
fvp: Fix register name in 'plat_print_gic_regs' macro
The 'plat_print_gic_regs' macro was accessing the GICC_CTLR register
using the GICD_CTLR offset. This still generates the right code in
the end because GICD_CTLR == GICC_CTLR but this patch fixes it for
the logic of the code.
Change-Id: I7b17af50e587f07bec0e4c933e346088470c96f3
Andrew Thoelke [Mon, 9 Jun 2014 11:54:15 +0000 (12:54 +0100)]
Remove calling CPU mpidr from bakery lock API
The bakery lock code currently expects the calling code to pass
the MPIDR_EL1 of the current CPU.
This is not always done correctly. Also the change to provide
inline access to system registers makes it more efficient for the
bakery lock code to obtain the MPIDR_EL1 directly.
This change removes the mpidr parameter from the bakery lock
interface, and results in a code reduction of 160 bytes for the
ARM FVP port.
Fixes ARM-software/tf-issues#213
Change-Id: I7ec7bd117bcc9794a0d948990fcf3336a367d543
danh-arm [Mon, 23 Jun 2014 17:04:29 +0000 (18:04 +0100)]
Merge pull request #145 from athoelke/at/psci-memory-optimization-v2
PSCI memory optimizations (v2)
danh-arm [Mon, 23 Jun 2014 17:02:36 +0000 (18:02 +0100)]
Merge pull request #144 from athoelke/at/init-context-v2
Initialise CPU contexts from entry_point_info (v2)
Andrew Thoelke [Thu, 19 Jun 2014 23:36:14 +0000 (00:36 +0100)]
Correctly dimension the PSCI aff_map_node array
The array of affinity nodes is currently allocated for 32 entries
with the PSCI_NUM_AFFS value defined in psci.h. This is not enough
for large systems, and will substantially over allocate the array
for small systems.
This patch introduces an optional platform definition
PLATFORM_NUM_AFFS to platform_def.h. If defined this value is
used for PSCI_NUM_AFFS, otherwise a value of two times the number
of CPU cores is used.
The FVP port defines PLATFORM_NUM_AFFS to be 10 which saves
nearly 1.5KB of memory.
Fixes ARM-software/tf-issues#192
Change-Id: I68e30ac950de88cfbd02982ba882a18fb69c1445
Andrew Thoelke [Thu, 19 Jun 2014 23:38:03 +0000 (00:38 +0100)]
Eliminate psci_suspend_context array
psci_suspend_context is an array of cache-line aligned structures
containing the single power_state integer per cpu. This array is
the only structure indexed by the aff_map_node.data integer.
This patch saves 2KB of BL3-1 memory by placing the CPU
power_state value directly in the aff_map_node structure. As a
result, this value is now never cached and the cache clean when
writing the value is no longer required.
Fixes ARM-software/tf-issues#195
Change-Id: Ib4c70c8f79eed295ea541e7827977a588a19ef9b
Andrew Thoelke [Wed, 4 Jun 2014 20:10:52 +0000 (21:10 +0100)]
Initialise CPU contexts from entry_point_info
Consolidate all BL3-1 CPU context initialization for cold boot, PSCI
and SPDs into two functions:
* The first uses entry_point_info to initialize the relevant
cpu_context for first entry into a lower exception level on a CPU
* The second populates the EL1 and EL2 system registers as needed
from the cpu_context to ensure correct entry into the lower EL
This patch alters the way that BL3-1 determines which exception level
is used when first entering EL1 or EL2 during cold boot - this is now
fully determined by the SPSR value in the entry_point_info for BL3-3,
as set up by the platform code in BL2 (or otherwise provided to BL3-1).
In the situation that EL1 (or svc mode) is selected for a processor
that supports EL2, the context management code will now configure all
essential EL2 register state to ensure correct execution of EL1. This
allows the platform code to run non-secure EL1 payloads directly
without requiring a small EL2 stub or OS loader.
Change-Id: If9fbb2417e82d2226e47568203d5a369f39d3b0f
danh-arm [Mon, 23 Jun 2014 13:41:34 +0000 (14:41 +0100)]
Merge pull request #143 from athoelke/at/remove-nsram
Remove NSRAM from FVP memory map
danh-arm [Mon, 23 Jun 2014 13:40:20 +0000 (14:40 +0100)]
Merge pull request #140 from athoelke/at/psci_smc_handler
PSCI SMC handler improvements
Sandrine Bailleux [Mon, 23 Jun 2014 12:37:53 +0000 (13:37 +0100)]
Compile with '-Wmissing-include-dirs' flag
Add the '-Wmissing-include-dirs' flag to the CFLAGS and ASFLAGS
to make the build fail if the compiler or the assembler is given
a nonexistant directory in the list of directories to be searched
for header files.
Also remove 'include/bl1' and 'include/bl2' directories from the
search path for header files as they don't exist anymore.
Change-Id: I2475b78ba8b7b448b9d0afaa9ad975257f638b89
danh-arm [Mon, 23 Jun 2014 12:10:00 +0000 (13:10 +0100)]
Merge pull request #138 from athoelke/at/cpu-context
Move CPU context pointers into cpu_data
danh-arm [Mon, 23 Jun 2014 12:06:05 +0000 (13:06 +0100)]
Merge pull request #137 from athoelke/at/no-early-exceptions
Remove early_exceptions from BL3-1
danh-arm [Mon, 23 Jun 2014 11:47:47 +0000 (12:47 +0100)]
Merge pull request #136 from athoelke/at/cpu-data
Per-cpu data cache restructuring
danh-arm [Mon, 23 Jun 2014 11:43:58 +0000 (12:43 +0100)]
Merge pull request #142 from athoelke/at/fix-console_putc
Remove broken assertion in console_putc()
Andrew Thoelke [Fri, 20 Jun 2014 11:23:20 +0000 (12:23 +0100)]
Remove NSRAM from FVP memory map
This memory is not used by the FVP port and requires an additional
4KB translation table.
This patch removes the entry from the memory map and reduces the
number of allocated translation tables.
Fixes ARM-software/tf-issues#196
Change-Id: I5b959e4fe92f5f892ed127c40dbe6c85eed3ed72
Andrew Thoelke [Fri, 20 Jun 2014 10:12:39 +0000 (11:12 +0100)]
Remove broken assertion in console_putc()
The assertion in console_putc() would trigger a recursion that
exhausts the stack and eventually aborts.
This patch replaces the assertion with an error return if the
console has not been initialized yet.
Fixes ARM-software/tf-issues#208
Change-Id: I95f736ff215d69655eb5ba7ceac70dc1409d986a
danh-arm [Wed, 18 Jun 2014 17:34:31 +0000 (18:34 +0100)]
Merge pull request #135 from soby-mathew/sm/remove-reinit-of-timers
Remove re-initialisation of system timers after warm boot for FVP
Soby Mathew [Fri, 6 Jun 2014 09:18:52 +0000 (10:18 +0100)]
Remove re-initialisation of system timers after warm boot for FVP
This patch removes the reinitialisation of memory mapped system timer
registers after a warm boot for the FVP. The system timers in FVP are
in the 'Always ON' power domain which meant the reinitialisation was
redundant and it could have conflicted with the setup the normal
world has done.
The programming of CNTACR(x) and CNTNSAR, the system timer registers,
are removed from the warm boot path with this patch.
Fixes ARM-software/tf-issues#169
Change-Id: Ie982eb03d1836b15ef3cf1568de2ea68a08b443e
danh-arm [Tue, 17 Jun 2014 14:12:14 +0000 (15:12 +0100)]
Merge pull request #134 from jcastillo-arm/jc/tf-issues/179
Set correct value for SYS_ID_REV_SHIFT in FVP
Andrew Thoelke [Mon, 2 Jun 2014 11:38:12 +0000 (12:38 +0100)]
Remove early_exceptions from BL3-1
The crash reporting support and early initialisation of the
cpu_data allow the runtime_exception vectors to be used from
the start in BL3-1, removing the need for the additional
early_exception vectors and 2KB of code from BL3-1.
Change-Id: I5f8997dabbaafd8935a7455910b7db174a25d871
Andrew Thoelke [Mon, 2 Jun 2014 09:00:25 +0000 (10:00 +0100)]
Move CPU context pointers into cpu_data
Moving the context pointers for each CPU into the per-cpu data
allows for much more efficient access to the contexts for the
current CPU.
Change-Id: Id784e210d63cbdcddb44ac1591617ce668dbc29f
Andrew Thoelke [Mon, 2 Jun 2014 10:40:35 +0000 (11:40 +0100)]
Per-cpu data cache restructuring
This patch prepares the per-cpu pointer cache for wider use by:
* renaming the structure to cpu_data and placing in new header
* providing accessors for this CPU, or other CPUs
* splitting the initialization of the TPIDR pointer from the
initialization of the cpu_data content
* moving the crash stack initialization to a crash stack function
* setting the TPIDR pointer very early during boot
Change-Id: Icef9004ff88f8eb241d48c14be3158087d7e49a3
Juan Castillo [Fri, 13 Jun 2014 16:10:00 +0000 (17:10 +0100)]
Set correct value for SYS_ID_REV_SHIFT in FVP
According to documentation, the Rev field is located at bit 28 in
the V2M sysid register.
Fixes ARM-software/tf-issues#179
Change-Id: I2abb7bdc092ccd3f41f8962dc8d8d8e44e8dfdc3
danh-arm [Mon, 16 Jun 2014 11:45:08 +0000 (12:45 +0100)]
Merge pull request #133 from athoelke/at/crash-reporting-opt
Make the BL3-1 crash reporting optional
danh-arm [Mon, 16 Jun 2014 11:41:58 +0000 (12:41 +0100)]
Merge pull request #131 from athoelke/at/cm_get_context
Provide cm_get/set_context() for current CPU
danh-arm [Mon, 16 Jun 2014 11:41:48 +0000 (12:41 +0100)]
Merge pull request #130 from athoelke/at/inline-asm-sysreg-v2
Make system register functions inline assembly v2
danh-arm [Mon, 16 Jun 2014 10:58:21 +0000 (11:58 +0100)]
Merge pull request #128 from sandrine-bailleux/sb/make-load_image-ep-optional
Make the entry point argument optional in load_image()
achingupta [Thu, 12 Jun 2014 08:15:06 +0000 (09:15 +0100)]
Merge pull request #127 from sandrine-bailleux/sb/fix-pl011-fifo-polling
PL011: Fix a bug in the UART FIFO polling
achingupta [Thu, 12 Jun 2014 08:14:05 +0000 (09:14 +0100)]
Merge pull request #126 from sandrine-bailleux/sb/include-missing-hfile
Include 'platform_def.h' header file in 'crash_reporting.S'
achingupta [Thu, 12 Jun 2014 08:12:52 +0000 (09:12 +0100)]
Merge pull request #125 from sandrine-bailleux/sb/remove-bl2_el_change_mem_ptr
fvp: Remove unused 'bl2_el_change_mem_ptr' variable
Andrew Thoelke [Tue, 3 Jun 2014 10:50:53 +0000 (11:50 +0100)]
Make the BL3-1 crash reporting optional
This patch makes the console crash dump of processor register
state optional based on the CRASH_REPORTING make variable.
This defaults to only being enabled for DEBUG builds. This can
be overridden by setting a different value in the platform
makefile or on the make command line.
Change-Id: Icfa1b2d7ff0145cf0a85e8ad732f9cee7e7e993f
Andrew Thoelke [Wed, 14 May 2014 16:09:32 +0000 (17:09 +0100)]
Provide cm_get/set_context() for current CPU
All callers of cm_get_context() pass the calling CPU MPIDR to the
function. Providing a specialised version for the current
CPU results in a reduction in code size and better readability.
The current function has been renamed to cm_get_context_by_mpidr()
and the existing name is now used for the current-CPU version.
The same treatment has been done to cm_set_context(), although
only both forms are used at present in the PSCI and TSPD code.
Change-Id: I91cb0c2f7bfcb950a045dbd9ff7595751c0c0ffb
Andrew Thoelke [Tue, 10 Jun 2014 22:33:07 +0000 (23:33 +0100)]
Merge Pull Request #120 (patch 1) from 'linmaonly:lin_patch2'
Andrew Thoelke [Tue, 10 Jun 2014 15:37:37 +0000 (16:37 +0100)]
PSCI SMC handler improvements
The SMC handler for PSCI was not correctly handling calls from
secure states, or from AArch32.
This patch completes the handler implementation to correctly
detect secure callers and to clear the top bits in parameters from
AArch32 callers.
The patch also reorganises the switch statement to separate SMC64 and
SMC32 function IDs which allows the compiler to generate much smaller
code for the function.
Change-Id: I36b1ac81fb14253d257255d0477771d54fab0d11
Andrew Thoelke [Mon, 2 Jun 2014 14:44:43 +0000 (15:44 +0100)]
Make system register functions inline assembly
Replace the current out-of-line assembler implementations of
the system register and system instruction operations with
inline assembler.
This enables better compiler optimisation and code generation
when accessing system registers.
Fixes ARM-software/tf-issues#91
Change-Id: I149af3a94e1e5e5140a3e44b9abfc37ba2324476
Sandrine Bailleux [Thu, 29 May 2014 12:55:51 +0000 (13:55 +0100)]
fvp: Remove unused 'bl2_el_change_mem_ptr' variable
'bl2_el_change_mem_ptr' variable is a left over from the former
BL2/BL3-1 interface.
Change-Id: Ib0979c8e2809e103a41f9c5cc4afec7dd21ac9ab
Sandrine Bailleux [Wed, 28 May 2014 10:31:18 +0000 (11:31 +0100)]
Make the entry point argument optional in load_image()
There are cases where the entry point information is useless to the
caller, e.g. when an image just needs to be loaded in memory but won't
ever be executed.
This patch allows load_image() function to take a NULL pointer as the
entry point argument. In this case, it won't be populated.
Change-Id: Ie9394b054457706c6699926c5e0206e0c3851c56
Sandrine Bailleux [Mon, 2 Jun 2014 12:52:38 +0000 (13:52 +0100)]
PL011: Fix a bug in the UART FIFO polling
Before attempting to write a character, the PL011 driver polls
the PL011_UARTFR_TXFF bit to know whether the UART FIFO is full.
However, the comparison with 1 was incorrect because
PL011_UARTFR_TXFF is not at bit 0. This patch fixes it.
Change-Id: If78892345bbdc8a5e4ae4a1b7159753c609681b0
Sandrine Bailleux [Tue, 27 May 2014 14:46:07 +0000 (15:46 +0100)]
Include 'platform_def.h' header file in 'crash_reporting.S'
'crash_reporting.S' needs to include 'platform_def.h' to get the
definition of PLATFORM_CORE_COUNT.
Note: On FVP it was compiling because 'platform_def.h' gets included
through 'plat/fvp/include/plat_macros.S' but we don't want to rely on
that for other platforms.
Change-Id: I51e974776dd0f3bda10ad9849f5ef7b30c629833
Dan Handley [Tue, 3 Jun 2014 17:50:13 +0000 (18:50 +0100)]
Merge pull request #122 from 'danh-arm:dh/v0.4-docs'
Dan Handley [Tue, 3 Jun 2014 17:48:27 +0000 (18:48 +0100)]
Merge pull request #124 from 'danh-arm:sm/imf-documentation'
Achin Gupta [Mon, 2 Jun 2014 21:27:36 +0000 (22:27 +0100)]
Document design of the Interrupt Mangement Framework
This patch adds documentation that describes the design of the Interrupt
management framework in the ARM Trusted Firmware. The porting-guide.md has also
been updated to describe the interface that should be implemented by each
platform to support this framework.
Change-Id: I3eda48e5c9456e6a9516956bee16a29e366633b7
Co-Authored-By: Soby Mathew <soby.mathew@arm.com>
Dan Handley [Tue, 3 Jun 2014 16:41:41 +0000 (17:41 +0100)]
Merge pull request #119 from 'soby-mathew:sm/doc_crash_reporting'
Dan Handley [Tue, 3 Jun 2014 16:39:10 +0000 (17:39 +0100)]
Merge pull request #117 from 'danh-arm:dh/v0.4-user-guide'
Dan Handley [Tue, 3 Jun 2014 16:38:11 +0000 (17:38 +0100)]
Merge pull request #121 'vikramkanigiri:vk/doc_for_133'
Vikram Kanigiri [Fri, 23 May 2014 14:56:12 +0000 (15:56 +0100)]
Documentation for BL3-1 hardening and reset vector
Update documentation with BL3-1 hardening interface
changes and for using BL3-1 as a reset vector feature
Change-Id: Iafdd05e7a8e66503409f2acc934372efef5bc51b
Dan Handley [Thu, 29 May 2014 18:07:23 +0000 (19:07 +0100)]
Trusted Firmware v0.4 release documentation
Updates to readme.md and change-log.md to describe the features and changes in
the v0.4 release.
Change-Id: Ice0a7cf7abae349f552e662eac638a46acc5db3f
Dan Handley [Thu, 29 May 2014 15:58:44 +0000 (16:58 +0100)]
User guide updates for v0.4 release
Update the Linux kernel, Linaro file system, FVP and DS-5 versions used for the
v0.4 release in user-guide.md.
Change-Id: I2265fc17c229d4b8cc52165d6583a4a579cdcee3
Lin Ma [Mon, 2 Jun 2014 18:45:36 +0000 (11:45 -0700)]
Enable mapping higher physical address
Current ATF uses a direct physical-to-virtual mapping, that is, a physical
address is mapped to the same address in the virtual space. For example,
physical address 0x8000_0000 is mapped to 0x8000_0000 virtual. This
approach works fine for FVP as all its physical addresses fall into 0 to
4GB range. But for other platform where all I/O addresses are 48-bit long,
If we follow the same direct mapping, we would need virtual address range
from 0 to 0x8fff_ffff_ffff, which is about 144TB. This requires a
significant amount of memory for MMU tables and it is not necessary to use
that much virtual space in ATF.
The patch is to enable mapping a physical address range to an arbitrary
virtual address range (instead of flat mapping)
Changed "base" to "base_va" and added "base_pa" in mmap_region_t and
modified functions such as mmap_add_region and init_xlation_table etc.
Fixes ARM-software/tf-issues#158
Soby Mathew [Fri, 23 May 2014 16:05:43 +0000 (17:05 +0100)]
Documentation for the new crash reporting implementation
This patch modifies and adds to the existing documentation
for the crash reporting implementation in BL3-1.
Change-Id: I2cfbfeeeb64996ec7d19a9ddf95295482899b4bd
Dan Handley [Fri, 30 May 2014 16:33:06 +0000 (17:33 +0100)]
Merge pull request #116 from 'danh-arm:dh/refactoring-docs'
Dan Handley [Thu, 29 May 2014 11:30:24 +0000 (12:30 +0100)]
Fix porting guide references to platform.h
Following recent refactoring changes to platform.h, this commit updates
porting-guide.md to correctly refer to platform.h and platform_def.h where
appropriate.
Change-Id: Idf1e77503c24358696f8f3c14caa0cc1d579deb4
Dan Handley [Thu, 29 May 2014 16:11:04 +0000 (17:11 +0100)]
Merge pull request #111 'soby-mathew-sm:fix_cookie_to_int_handler'
Dan Handley [Thu, 29 May 2014 16:09:24 +0000 (17:09 +0100)]
Merge pull request #115 'athoelke-at:fix-bl31-X1-parameter'
Dan Handley [Thu, 29 May 2014 16:05:34 +0000 (17:05 +0100)]
Merge pull request #114 from 'vikramkanigiri:vk/pass_bl33_args'
Soby Mathew [Wed, 28 May 2014 16:14:36 +0000 (17:14 +0100)]
Fix compilation issue for IMF_READ_INTERRUPT_ID build flag
This patch fixes the compilation issue for trusted firmware when the
IMF_READ_INTERRUPT_ID is enabled.
Change-Id: I94ab613b9bc96a7c1935796c674dc42246aaafee
Soby Mathew [Tue, 27 May 2014 15:54:31 +0000 (16:54 +0100)]
Pass 'cookie' parameter to interrupt handler in BL3-1
The interrupt handling routine in BL3-1 expects a cookie as its last
parameter which was not being passed when invoking the interrupt
handler in BL3-1. This patch fixes that by passing a dummy cookie
parameter in the x3 register.
Fixes ARM-software/tf-issues#171
Change-Id: Ic98abbbd9f849e6f1c55343e865b5e0a4904a1c5
Andrew Thoelke [Wed, 28 May 2014 21:22:55 +0000 (22:22 +0100)]
Allow platform parameter X1 to be passed to BL3-1
bl2_main() was overwriting any platform set X1 parameter for BL3-1
with the value zero.
This patch ensure that any platform set value is correctly passed
to BL3-1. The FVP port adds a check to verify this parameter is
being passed correctly.
Fixes ARM-software/tf-issues#173
Change-Id: Ifbcda73d3d41d2b04a4baf5614e9d2d21f1717c8
Vikram Kanigiri [Wed, 28 May 2014 12:41:51 +0000 (13:41 +0100)]
Pass the args to the BL3-3 entrypoint
At present the arguments for BL3-3 in the entry_point_info
structure are not being transferred to X0-X7 before starting
execution of this image
This patch saves the args for BL3-3 into cpu context used
for its entry
Fixes ARM-software/tf-issues#172
Change-Id: I001b4b9bff6a264336f0d01d377619ae719f928b
Dan Handley [Tue, 27 May 2014 17:46:22 +0000 (18:46 +0100)]
Merge pull request #110 from soby-mathew:sm/support_normal_irq_in_tsp-v4 into for-v0.4
Dan Handley [Tue, 27 May 2014 17:34:30 +0000 (18:34 +0100)]
Merge pull request #112 from danh-arm:dh/refactor-plat-header-v4 into for-v0.4
Dan Handley [Tue, 27 May 2014 15:17:21 +0000 (16:17 +0100)]
Further renames of platform porting functions
Rename the ic_* platform porting functions to plat_ic_* to be
consistent with the other functions in platform.h. Also rename
bl31_get_next_image_info() to bl31_plat_get_next_image_ep_info()
and remove the duplicate declaration in bl31.h.
Change-Id: I4851842069d3cff14c0a468daacc0a891a7ede84
Dan Handley [Tue, 27 May 2014 14:39:41 +0000 (15:39 +0100)]
Remove FVP specific comments in platform.h
Remove the FVP specific comments in platform.h since this file
is re-usable across all platforms.
Change-Id: Ifd4a4f72562adb3ecf8b9078b0150f170ef22dba
Soby Mathew [Tue, 27 May 2014 09:20:01 +0000 (10:20 +0100)]
Fixup Standard SMC Resume Handling
This patch fixes a missed return and code alignment issues
in TSP_FID_RESUME handling.
Change-Id: Icf8aeb76dfd6898745653ce039e3bac45e0a9b3a
Dan Handley [Fri, 16 May 2014 13:08:45 +0000 (14:08 +0100)]
Add enable mmu platform porting interfaces
Previously, the enable_mmu_elX() functions were implicitly part of
the platform porting layer since they were included by generic
code. These functions have been placed behind 2 new platform
functions, bl31_plat_enable_mmu() and bl32_plat_enable_mmu().
These are weakly defined so that they can be optionally overridden
by platform ports.
Also, the enable_mmu_elX() functions have been moved to
lib/aarch64/xlat_tables.c for optional re-use by platform ports.
These functions are tightly coupled with the translation table
initialization code.
Fixes ARM-software/tf-issues#152
Change-Id: I0a2251ce76acfa3c27541f832a9efaa49135cc1c
Dan Handley [Thu, 15 May 2014 13:53:30 +0000 (14:53 +0100)]
Rename FVP specific files and functions
FVP specific files and functions containing the word "plat" have been
renamed to use the word "fvp" to distinguish them from the common
platform functionality and porting functions.
Change-Id: I39f9673dab3ee9c74bd18b3e62b7c21027232f7d
Dan Handley [Thu, 15 May 2014 13:11:36 +0000 (14:11 +0100)]
Move BL porting functions into platform.h
Some platform porting functions were in BL specific header files.
These have been moved to platform.h so that all porting functions
are in the same place. The functions are now grouped by BL.
Obsolete BL headers files have been removed.
Also, the weak declaration of the init_bl2_mem_layout() function
has been moved out the header file and into the source file
(bl_common.c) using the more succinct #pragma syntax. This
mitigates the risk of 2 weak definitions being created and the
wrong one being picked up by the compiler.
Change-Id: Ib19934939fd755f3e5a5a5bceec88da684308a83