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* ArmPkg: remove duplicated ARM/AArch64 ArmGicArchLib sourcesLeif Lindholm2020-12-183-65/+2
| | | | | | | | | | | The ID register access was the only difference between them, so after switching to the ArmHasGicSystemRegisters () helper, there is no longer any need to have separate ARM/AArch64 source files for ArmGicArchLib, so unify them and drop the subdirectories. Cc: Ard Biesheuvel <ard.biesheuvel@arm.com> Signed-off-by: Leif Lindholm <leif@nuviainc.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
* ArmPkg: use ID register helper for ArmGicArch(Sec)LibLeif Lindholm2020-12-182-2/+2
| | | | | | | | Use ArmHasGicSystemRegisters () instead of direct ID register tests. Cc: Ard Biesheuvel <ard.biesheuvel@arm.com> Signed-off-by: Leif Lindholm <leif@nuviainc.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
* ArmPkg: Replace BSD License with BSD+Patent LicenseMichael D Kinney2019-04-093-21/+3
| | | | | | | | | | | | | | | | | | | | 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>
* ArmPkg: cache detected revision in ArmGicArchLibArd Biesheuvel2015-07-283-9/+40
| | | | | | | | | | | | | | | Instead of inferring the GIC revision from the CPU id registers and the presence/availability of the system register interface upon each invocation, move the logic to a constructor and cache the result. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org> Tested-by: Leif Lindholm <leif.lindholm@linaro.org> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18100 6f19259b-4bc3-4df7-8a09-765794883524
* ArmPkg: split off ArmGicArchLib from ArmGicLibArd Biesheuvel2015-07-283-0/+135
The current implementation of ArmGicGetSupportedArchRevision () that is used by all ARM platforms is entirely stateless (in order to support being executed from flash) so it needs to interrogate the hardware for the supported GIC revision upon each invocation. However, this statelessness is only needed for SEC type modules; in all other cases, we could easily determine the GIC revision once, and store the result in a global variable. In preparation of having separate early and normal versions, this patch introduces the ArmGicArchLib library class and default implementation, and moves the existing ArmGicGetSupportedArchRevision () into it. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org> Tested-by: Leif Lindholm <leif.lindholm@linaro.org> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18098 6f19259b-4bc3-4df7-8a09-765794883524