Commit Graph

250 Commits

Author SHA1 Message Date
Pierre Gondois 60e49aac4e ArmPkg: Fix Ecc error 7008 for OPTEE_MESSAGE_PARAM
This patch fixes the following Ecc reported error:
Complex types should be typedef-ed

The error is due to the a nested structure declaration.

Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-04-15 19:53:39 +00:00
Pierre Gondois 39b3e14c99 ArmPkg: Fix Ecc error 7008 for SCMI_CLOCK_RATE
This patch fixes the following Ecc reported error:
Complex types should be typedef-ed

The error is due to the a nested structure declaration.

Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-04-15 19:53:39 +00:00
Pierre Gondois 3c0c1d3fae ArmPkg: Rename include guard in ArmGicLib.h
Edk2 coding standard states that:
"Names starting with one or two underscores, such as
_MACRO_GUARD_FILE_NAME_H_, must not be used."

Ref:
https://edk2-docs.gitbook.io/edk-ii-c-coding-standards-specification/
5_source_files/53_include_files#
5-3-5-all-include-file-contents-must-be-protected-by-a-include-guard

Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-04-15 19:53:39 +00:00
Pierre Gondois a4d95d7cf9 ArmPkg: Fix Ecc error 8001 in Chipset
This patch fixes the following Ecc reported error:
Only capital letters are allowed to be used
for #define declarations

Edk2 coding standard stating that:
"Names starting with one or two underscores, such as
_MACRO_GUARD_FILE_NAME_H_, must not be used."
the include guard of ArmCortexA5x.h is also updated.

Ref:
https://edk2-docs.gitbook.io/edk-ii-c-coding-standards-specification/
5_source_files/53_include_files#
5-3-5-all-include-file-contents-must-be-protected-by-a-include-guard

Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-04-15 19:53:39 +00:00
Achin Gupta 0e43e02b9b ArmPkg: Allow FF-A calls to get memory region's attributes
Allow getting memory region's permissions using either of the Firmware
Framework(FF-A) ABI transport or through the earlier used SVC calls.

Signed-off-by: Achin Gupta <achin.gupta@arm.com>
Co-developed-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
2021-02-23 15:40:37 +00:00
Sughosh Ganu 799c07ca28 ArmPkg: Add macros for SPM version with FF-A support enabled
Declare the values of SPM major and minor versions as macros with FF-A
enabled, which can be used in the module for checking the SPM version
compatibility. These SPM major and minor version numbers are mandated
for having support for the Firmware Framework(FF-A) feature enabled.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
2021-02-23 15:40:37 +00:00
Sughosh Ganu 2385e1deca ArmPkg: Add macros for SPM version
Declare the values of SPM major and minor versions as macros which can
be used in the module for checking the SPM version compatibility.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
2021-02-23 15:40:37 +00:00
Achin Gupta af0c597e98 ArmPkg/ArmSvcLib: Return x4-x7 in output parameters
The Arm SMC calling convention standard v1.2 allows 8 input and output
parameter registers. The FF-A specification relies on this
communication. This patch extends the number of output registers
returned by ArmCallSvc() to match this convention.

Signed-off-by: Achin Gupta <achin.gupta@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2021-02-23 15:40:37 +00:00
Achin Gupta 37ef4bb1a7 ArmPkg/IndustryStandard: Add barebones FF-A header
This patch adds a rudimentary header file with defines for FF-A ABIs
that will be used as the transport between S-EL0 and the SPM

Signed-off-by: Achin Gupta <achin.gupta@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2021-02-23 15:40:37 +00:00
Rebecca Cran a2b5ea38a6 ArmPkg: Update OemGetChassisType function to return MISC_CHASSIS_TYPE
Update OemGetChassisType in OemMiscLib to return MISC_CHASSIS_TYPE
instead of EFI_STATUS, which matches other OemMiscLib functions.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
2021-02-23 12:37:51 +00:00
Rebecca Cran 869ccd4a3e ArmPkg: Rename some functions and parameters in OemMiscLib
o Rename 'mHiiHandle' parameter in OemUpdateSmbiosInfo to 'HiiHandle'.
o Rename 'Offset' parameter in OemUpdateSmbiosInfo to 'Field'.
o Rename OemGetProcessorMaxSockets to OemGetMaxProcessors.
o Rename OemIsSocketPresent to OemIsProcessorPresent.
o Update Universal/Smbios to follow the changes to OemMiscLib.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
2021-02-23 12:37:51 +00:00
Rebecca Cran 533fff506e ArmPkg: Fix ordering of return type and EFIAPI specifier in OemMiscLib
The return type should be on the line before any EFIAPI specifier.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
2021-02-23 12:37:51 +00:00
Rebecca Cran 2c7c64fc04 ArmPkg: Add Library/OemMiscLib.h
OemMiscLib.h provides the interface which platforms should implement to
interact with the SmbiosMiscDxe and ProcessorSubClassDxe drivers to
update SMBIOS tables.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Acked-by: Leif Lindholm <leif@nuviainc.com>
2021-02-08 19:35:23 +00:00
Rebecca Cran 6e131aff00 ArmPkg: Add helper to read CCIDX status
Add a helper function to determine CCIDX support.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
2021-02-08 19:35:23 +00:00
Rebecca Cran 4f92cfa44d ArmPkg: Add definition of the maximum cache level in ARMv8-A
The ARM Architecture Reference Manual for ARMv8-A defines up to
seven levels of cache, L1 through L7.
Define MAX_ARM_CACHE_LEVEL to be 7.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-02-08 19:35:23 +00:00
Rebecca Cran 92bdb2a9c6 ArmPkg: Add register encoding definition for MMFR2
Add register encoding definition for Memory Model Feature Register 2.
We need to define it here because we build for ARMv8.0, which doesn't
have it.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-02-08 19:35:23 +00:00
Rebecca Cran 9e7621c05e ArmPkg: Add ARM SMC Architecture functions to ArmStdSmc.h
The ARM SMC Architecture functions were missing from ArmStdSmc.h.
Add them, based on the SMC Calling Convention version 1.2 specification.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-02-08 19:35:23 +00:00
Quan Nguyen 0d49b82e4f ArmPkg/ArmGicLib: Add ArmGicSetInterruptPriority() helper function
According to ARM IHI 0069F, section 11.9.18 GICD_IPRIORITYR<n>,
Interrupt Priority Registers, n = 0 - 254, when affinity routing is
enabled for the Security state of an interrupt, GICR_IPRIORITYR<n>
is used instead of GICD_IPRIORITYR<n> where n = 0 to 7 (that is, for
SGIs and PPIs).

As setting interrupt priority for SGIs and PPIs are handled using
difference registers depends on the mode, this patch instroduces
ArmGicSetInterruptPriority() helper function to handle the discrepancy.

Cc: Leif Lindholm <leif@nuviainc.com>
Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com>
Reviewed-off-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
2020-12-18 18:09:18 +00:00
Leif Lindholm e2bfd172e4 ArmPkg/ArmLib: move ArmReadIdPfr0/1 into private header ArmV7Lib.h
ArmReadIdPfr0 () and ArmReadIdPfr1 () are now used only inside ArmLib.
Remove the prototypes from the public header to discourage new id
register accessor additions, and direct id register access in general.
Move them into local header Arm/ArmV7Lib.h.

Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Signed-off-by: Leif Lindholm <leif@nuviainc.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
2020-12-18 15:27:26 +00:00
Leif Lindholm 740b870dc8 ArmPkg: add ArmHasSecurityExtensions () helper function
Create a helper function to eliminate direct feature register reading.

Returns BOOLEAN True if the CPU implements the Security extensions,
otherwise returns BOOL False.

This function is only implemented for ARM, not AArch64.

Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Signed-off-by: Leif Lindholm <leif@nuviainc.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
2020-12-18 15:27:26 +00:00
Leif Lindholm 5cc25cff5d ArmPkg/ArmLib: add ArmHasGicSystemRegisters () helper function
Create a helper function to eliminate direct feature register reading,
which gets messy in code shared between ARM/AArch64.

Returns BOOLEAN True if the CPU implements the GIC System Register
Interface (any version), otherwise returns BOOL False.

Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Signed-off-by: Leif Lindholm <leif@nuviainc.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
2020-12-18 15:27:26 +00:00
Ard Biesheuvel 49188b2aa4 ArmPkg/CpuDxe: move PageAttributeToGcdAttribute() out of ArmMmuLib
The routine PageAttributeToGcdAttribute() is exported by ArmMmuLib
but only ever used in the implementation of CpuDxe. So let's move
the function there and make it STATIC.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
2020-04-02 12:35:52 +00:00
Ard Biesheuvel f9ec8e51d2 ArmPkg/ArmLib: move set/way helper functions into private header
The clean/invalidate helper functions that operate on a single cache
line identified by set, way and level in a special, architected format
are only used by the implementations of the clean/invalidate routines
that operate on the entire cache hierarchy, as exposed by ArmLib.

The latter routines will be deprecated soon, so move the helpers out
of ArmLib.h and into a private header so they are safe from abuse.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
2020-03-05 21:08:30 +00:00
Antoine Cœur ff5fef1428 ArmPkg: Fix various typos
Fix various typos in ArmPkg.

Signed-off-by: Coeur <coeur@gmx.fr>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2019-07-04 12:20:28 +01:00
Michael D Kinney 4059386c70 ArmPkg: Replace BSD License with BSD+Patent License
https://bugzilla.tianocore.org/show_bug.cgi?id=1373

Replace BSD 2-Clause License with BSD+Patent License.  This change is
based on the following emails:

  https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html
  https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html

RFCs with detailed process for the license change:

  V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html
  V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html
  V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2019-04-09 09:10:21 -07:00
Ard Biesheuvel d5788777bc ArmPkg/ArmMmuLib AARCH64: get rid of needless TLB invalidation
Currently, we always invalidate the TLBs entirely after making
any modification to the page tables. Now that we have introduced
strict memory permissions in quite a number of places, such
modifications occur much more often, and it is better for performance
to flush only those TLB entries that are actually affected by
the changes.

At the same time, relax some system wide data synchronization barriers
to non-shared. When running in UEFI, we don't share virtual address
translations with other masters, unless we are running under virt, but
in that case, the host will upgrade them as appropriate (by setting
an override at EL2)

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2019-01-29 11:24:02 +01:00
Leif Lindholm 8f470eb476 ArmPkg: delete unused ArmTrustZoneSmc.h
ArmPkg/Include/IndustryStandard/ArmTrustZoneSmc.h contains definitions
contradicting the SMC Calling Convention (ARM DEN0028B).

It also has no users in public trees. So delete before it can cause
damage.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-01-21 16:47:18 +00:00
Jeff Brasen 559a07d84e ArmPkg/ArmScmiDxe: Add clock enable function
Add function to allow enabling and disabling of the clock using the SCMI
interface. Add gArmScmiClock2ProtocolGuid to distinguish platforms that
support new API from those that just have the older protocol.

SCMI_CLOCK2_PROTOCOL also adds a version parameter to allow for future
changes. It is placed after the functions that are present in the
existing protocol to allow SCMI_CLOCK2_PROTOCOL to be cast to
SCMI_CLOCK_PROTOCOL so that only a single implementation of those
function are needed.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jeff Brasen <jbrasen@nvidia.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2018-12-21 18:30:46 +01:00
Sumit Garg f0574a194c ArmPkg/OpteeLib: Add OPTEE_SUCCESS return code
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2018-12-11 09:04:10 +01:00
Ard Biesheuvel 95d04ebca8 ArmPkg/ArmLib: add support for reading the max physical address space size
Add a helper function that returns the maximum physical address space
size as supported by the current CPU.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2018-11-29 18:54:09 +01:00
Achin Gupta eed947be0b ArmPkg/ArmMmuLib: Add MMU Library suitable for use in S-EL0.
The Standalone MM environment runs in S-EL0 in AArch64 on ARM Standard
Platforms. Privileged firmware e.g. ARM Trusted Firmware sets up its
architectural context including the initial translation tables for the
S-EL1/EL0 translation regime. The MM environment will still request ARM
TF to change the memory attributes of memory regions during
initialization.

The Standalone MM image is a FV that encapsulates the MM foundation
and drivers. These are PE-COFF images with data and text segments.
To initialise the MM environment, Arm Trusted Firmware has to create
translation tables with sane default attributes for the memory
occupied by the FV. This library sends SVCs to ARM Trusted Firmware
to request memory permissions change for data and text segments.

This patch adds a simple MMU library suitable for execution in S-EL0 and
requesting memory permissions change operations from Arm Trusted Firmware.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Sughosh Ganu <sughosh.ganu@arm.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2018-11-27 13:06:06 +01:00
Achin Gupta 37b2516bff ArmPkg/Include: Add MM interface SVC return codes.
This patch adds the Management Mode(MM) - Secure Partition
Manager(SPM) SVC return codes.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Sughosh Ganu <sughosh.ganu@arm.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2018-11-27 13:06:03 +01:00
Sughosh Ganu 9d58430833 ArmPkg/Include: Fix the SPM version SVC ID
The MM_VERSION SMC call uses SMC32 calling convention. Fix the macro
to reflect the correct value.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Sughosh Ganu <sughosh.ganu@arm.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2018-11-27 13:06:01 +01:00
Ard Biesheuvel 1ec194b21c ArmPkg: remove now unused BsdLib.h
The last remaining users of the BdsLib.h header reside in the
edk2-platforms tree, and so it has been copied there. This
allows us to remove the original from ArmPkg.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2018-11-26 17:53:42 +01:00
Sumit Garg a0f01e8a22 ArmPkg/OpteeLib: Add APIs to communicate with OP-TEE
Add following APIs to communicate with OP-TEE pseudo/early TAs:
1. OpteeInit
2. OpteeOpenSession
3. OpteeCloseSession
4. OpteeInvokeFunc

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2018-10-30 14:21:45 +00:00
Sami Mujawar 301402fa47 ArmPkg: Add support for GICv4
Updated Redistributor base calculation to allow for the fact that
GICv4 has 2 additional 64KB frames (for VLPI and a reserved frame).
The code now tests the VLPIS bit in the GIC Redistributor Type
Register (GICR_TYPER) and calculates the Redistributor granularity
accordingly.

The code changes are:
  GICR_TYPER register fields, etc, added to the header.
  Loop updated to pay attention to GICR_TYPER.Last.
  Derive frame "stride" size from GICR_TYPER.VLPIS.

Note: The assumption is that the redistributors are adjacent for
all CPUs. However this may not be the case for NUMA systems.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2018-10-12 17:40:33 +02:00
Sumit Garg d65b78f101 ArmPkg: Add initial OpteeLib implementation
This is initial version of OP-TEE library that provides api's to
communicate with OP-TEE OS (Trusted OS based on ARM TrustZone) via
secure monitor calls. Currently it provides basic api to detect OP-TEE
presence via UID matching.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2018-08-01 11:03:45 +02:00
Ard Biesheuvel 1f739a851c ArmPkg/ArmMtlLib: fix prototype inconsistency in MtlWaitUntilChannelFree
Align the prototype of ArmMtlLib's MtlWaitUntilChannelFree () with the
one in the ArmMtlNullLib implementation (rather than the other way around,
since edk2-platforms has a conflicting implementation as well)

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2018-06-18 21:49:39 +02:00
Ard Biesheuvel 5853e2e450 ArmPkg: add reenable hook to ArmGenericTimerCounterLib
In preparation of selectively reinstating the timer enable quirk for Xen
that we removed in commit 411a373ed6 ("ArmPkg/TimerDxe: remove workaround
for KVM timer handling"), add a ArmGenericTimerReenableTimer() library
function to ArmGenericTimerCounterLib that we will populate for Xen only.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Julien Grall <julien.grall@arm.com>
Acked-by: Julien Grall <julien.grall@arm.com>
2018-04-26 08:31:12 +02:00
Girish Pathak 4f2494cf53 ArmPkg: Introduce SCMI protocol
This change introduces a new SCMI protocol driver for
Arm systems. The driver currently supports only clock
and performance management protocols. Other protocols
will be added as and when needed.

Clock management protocol is used to configure various clocks
available on the platform e.g. HDLCD clock on the Juno platforms.

Whereas performance management protocol allows adjustment
of various performance domains. Currently this is used to evaluate
performance of the Juno platform.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Girish Pathak <girish.pathak@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2018-04-23 17:58:28 +01:00
Girish Pathak 38a00bae86 ArmPkg: MTL Library interface and Null library implementation
Upcoming new component ArmPkg/Drivers/ArmScmiDxe is dependent on
platform specific ArmMtlLib library implementation, however in order
to be able to build the ArmScmiDxe component outside of the context of a
particular platform, this change adds Null implementation of the
ArmMtlLib along with ARM MTL library header.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Girish Pathak <girish.pathak@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2018-04-23 12:12:23 +01:00
Michael Zimmermann 1e1d16971d ArmPkg/Library/ArmLib: add ArmWriteSctlr
This currently isn't needed by anything in the edk2 tree but
it's useful for externally maintained platforms which have
to set this register e.g. to disable alignment aborts.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael Zimmermann <sigmaepsilon92@gmail.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2018-01-15 12:02:25 +00:00
Peicong Li 829633e3a8 ArmPkg/ArmMmuLib: Add new attribute WRITE_BACK_NONSHAREABLE
Flash region needs to be set as cacheable (write back) to increase
performance, if PEI is still XIP on flash or DXE FV is decompressed
from flash FV. However some ARM platforms do not support to set flash
as inner shareable since flash is not normal DDR memory and it will
not respond to cache snoop request, which will causes system hang
after MMU is enabled.

So we need a new ARM memory region attribute WRITE_BACK_NONSHAREABLE
for flash region on these platforms specifically. This attribute will
set the region as write back but not inner shared.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Peicong Li <lipeicong@huawei.com>
Signed-off-by: Heyi Guo <heyi.guo@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-11-07 13:29:46 +00:00
Supreeth Venkatesh 4d163696f2 ArmPkg/Include: Add ArmSvcLib header file.
ArmSvcLib header file to specify the SVC arguments structure and
function prototype to trigger an SVC call.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Achin Gupta <achin.gupta@arm.com>
Signed-off-by: Supreeth Venkatesh <supreeth.venkatesh@arm.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2017-10-06 22:35:40 +01:00
Supreeth Venkatesh bbf79aa264 ArmPkg/Include: Add SVC function IDs for Management Mode.
SVCs are in the range 0xC4000060 - 0xC400007f.
The functions available to the secure MM partition:
1. Signal completion of MM event handling.
2. Set/Get memory attributes for a memory region at runtime.
3. Get version number of secure partition manager.

Also, it defines memory attributes required for set/get operations.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Supreeth Venkatesh <supreeth.venkatesh@arm.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2017-10-06 21:58:58 +01:00
Supreeth Venkatesh 542bc11a02 ArmPkg/Include: Add standard SMC function IDs for MM interface.
This patch adds a list of function IDs that fall under the standard
SMC range as defined in [1]

SMCs associated with Management Mode are in the range 0xC4000040 -
0xC400005f (64 bit) and 0x84000040 - 0x8400005f (32 bit).

The function(s) available to the normal world:
1. Request services from the secure MM environment using MM_COMMUNICATE.

It also defines MM return codes.

[1] http://infocenter.arm.com/help/topic/com.arm.doc.den0060a/DEN0060A_ARM_MM_Interface_Specification.pdf.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Achin Gupta <achin.gupta@arm.com>
Signed-off-by: Supreeth Venkatesh <supreeth.venkatesh@arm.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2017-10-06 21:58:58 +01:00
Ard Biesheuvel 8659306a2e ArmPkg/ArmGicDxe: Expose HardwareInterrupt2 protocol
The existing HardwareInterrupt protocol lacked a means to configure the
level/edge properties of an interrupt.  The new HardwareInterrupt2
protocol introduced this capability.
This patch updates the GIC drivers to provide the new interfaces.
The changes comprise:
  Update to use HardwareInterrupt2 protocol
  Additions to register info in ArmGicLib.h
  Added new functionality (GetTriggerType and SetTriggerType)

The requirement for this change derives from a problem detected on ARM
Juno boards, but the change is of generic (ARM) relevance.

This commit is in response to review on the mailing list and, as
suggested there, rolls Girish's updates onto Ard's original example.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Girish Pathak <girish.pathak@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Tested-by: Girish Pathak <girish.pathak@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-10-05 21:23:39 +01:00
Evan Lloyd b0393756d6 ArmPkg: Tidy GIC code before changes.
This change is purely cosmetic, to tidy some code before change.
Mods involve:
    Re-order #includes
    Reformat comments.
    Use ns consistently (always "100ns" not sometimes "100 nS")
    Split overlength code lines.
    Make protocol functions STATIC.
    Remove "Horor vacui" comments.
    Rationalize GIC register address calculations
    Replace explicit test and assert with ASSERT_EFI_ERROR.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Girish Pathak <girish.pathak@arm.com>
Signed-off-by: Alexei Fedorov <alexei.fedorov@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-10-05 17:45:16 +01:00
Ard Biesheuvel dcd48d2db4 ArmPkg: remove UncachedMemoryAllocationLib
Now that ArmDmaLib can take care of its own memory allocation needs,
let's get rid of UncachedMemoryAllocationLib entirely. This forces
platforms to declare the required semantics (non-cache coherent DMA,
whichever way it is implemented), rather than using uncached memory
allocations directly, which may not always be the right choice, and
prevents sharing of drivers between platforms if one is cache coherent
and the other is not.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-08-31 08:59:37 +01:00
Jun Nie edc65fc4d8 ArmPkg: Move IS_DEVICE_PATH_NODE for sharing
Move IS_DEVICE_PATH_NODE into header to share it.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-08-01 15:57:47 +01:00