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2019-10-07Merge "Neoverse N1 Errata Workaround 1542419" into integrationSoby Mathew
2019-10-04Neoverse N1 Errata Workaround 1542419laurenw-arm
Coherent I-cache is causing a prefetch violation where when the core executes an instruction that has recently been modified, the core might fetch a stale instruction which violates the ordering of instruction fetches. The workaround includes an instruction sequence to implementation defined registers to trap all EL0 IC IVAU instructions to EL3 and a trap handler to execute a TLB inner-shareable invalidation to an arbitrary address followed by a DSB. Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com> Change-Id: Ic3b7cbb11cf2eaf9005523ef5578a372593ae4d6
2019-10-03Introducing support for Cortex-A65AEImre Kis
Change-Id: I1ea2bf088f1e001cdbd377cbfb7c6a2866af0422 Signed-off-by: Imre Kis <imre.kis@arm.com>
2019-10-02Introducing support for Cortex-A65Imre Kis
Change-Id: I645442d52a295706948e2cac88c36c1a3cb0bc47 Signed-off-by: Imre Kis <imre.kis@arm.com>
2019-09-30Cortex_hercules: Add support for Hercules-AEArtsem Artsemenka
Not tested on FVP Model. Change-Id: Iedebc5c1fbc7ea577e94142b7feafa5546f1f4f9 Signed-off-by: Artsem Artsemenka <artsem.artsemenka@arm.com>
2019-09-11Zeus: apply the MSR SSBS instructionJohn Tsichritzis
Zeus supports the SSBS mechanism and also the new MSR instruction to immediately apply the mitigation. Hence, the new instruction is utilised in the Zeus-specific reset function. Change-Id: I962747c28afe85a15207a0eba4146f9a115b27e7 Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>
2019-08-20Merge "Fix for N1 1043202 Errata Workaround" into integrationAlexei Fedorov
2019-08-19Fix for N1 1043202 Errata Workaroundlaurenw-arm
ISB instruction was removed from the N1 1043202 Errata Workaround [1], this fix is adding the ISB instruction back in. [1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.pjdoc-466751330-10325/index.html Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com> Change-Id: I74eac7f6ad38991c36d423ad6aa44558033ad388
2019-08-16FVP_Base_AEMv8A platform: Fix cache maintenance operationsAlexei Fedorov
This patch fixes FVP_Base_AEMv8A model hang issue with ARMv8.4+ with cache modelling enabled configuration. Incorrect L1 cache flush operation to PoU, using CLIDR_EL1 LoUIS field, which is required by the architecture to be zero for ARMv8.4-A with ARMv8.4-S2FWB feature is replaced with L1 to L2 and L2 to L3 (if L3 is present) cache flushes. FVP_Base_AEMv8A model can be configured with L3 enabled by setting `cluster0.l3cache-size` and `cluster1.l3cache-size` to non-zero values, and presence of L3 is checked in `aem_generic_core_pwr_dwn` function by reading CLIDR_EL1.Ctype3 field value. Change-Id: If3de3d4eb5ed409e5b4ccdbc2fe6d5a01894a9af Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
2019-08-01Switch AARCH32/AARCH64 to __aarch64__Julius Werner
NOTE: AARCH32/AARCH64 macros are now deprecated in favor of __aarch64__. All common C compilers pre-define the same macros to signal which architecture the code is being compiled for: __arm__ for AArch32 (or earlier versions) and __aarch64__ for AArch64. There's no need for TF-A to define its own custom macros for this. In order to unify code with the export headers (which use __aarch64__ to avoid another dependency), let's deprecate the AARCH32 and AARCH64 macros and switch the code base over to the pre-defined standard macro. (Since it is somewhat unintuitive that __arm__ only means AArch32, let's standardize on only using __aarch64__.) Change-Id: Ic77de4b052297d77f38fc95f95f65a8ee70cf200 Signed-off-by: Julius Werner <jwerner@chromium.org>
2019-07-31Enable AMU for Cortex-HerculesBalint Dobszay
Change-Id: Ie0a94783d0c8e111ae19fd592304e6485f04ca29 Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>
2019-07-16Cortex_hercules: Introduce preliminary cpu supportLouis Mayencourt
Change-Id: Iab767e9937f5c6c8150953fcdc3b37e8ee83fa63 Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>
2019-07-10Rename Cortex-Deimos to Cortex-A77Balint Dobszay
Change-Id: I755e4c42242d9a052570fd1132ca3d937acadb13 Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>
2019-07-02Removing redundant ISB instructionslauwal01
Replacing ISB instructions in each Errata workaround with a single ISB instruction before the RET in the reset handler. Change-Id: I08afabc5b98986a6fe81664cd13822b36cab786f Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
2019-07-02Workaround for Neoverse N1 erratum 1275112lauwal01
Neoverse N1 erratum 1275112 is a Cat B erratum [1], present in older revisions of the Neoverse N1 processor core. The workaround is to set a bit in the implementation defined CPUACTLR_EL1 system register, which delays instruction fetch after branch misprediction. [1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.pjdoc-466751330-10325/index.html Change-Id: If7fe55fe92e656fa6aea12327ab297f2e6119833 Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
2019-07-02Workaround for Neoverse N1 erratum 1262888lauwal01
Neoverse N1 erratum 1262888 is a Cat B erratum [1], present in older revisions of the Neoverse N1 processor core. The workaround is to set a bit in the implementation defined CPUECTLR_EL1 system register, which disables the MMU hardware prefetcher. [1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.pjdoc-466751330-10325/index.html Change-Id: Ib733d748e32a7ea6a2783f3d5a9c5e13eee01105 Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
2019-07-02Workaround for Neoverse N1 erratum 1262606lauwal01
Neoverse N1 erratum 1262606 is a Cat B erratum [1], present in older revisions of the Neoverse N1 processor core. The workaround is to set a bit in the implementation defined CPUACTLR_EL1 system register, which delays instruction fetch after branch misprediction. [1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.pjdoc-466751330-10325/index.html Change-Id: Idd980e9d5310232d38f0ce272862e1fb0f02ce9a Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
2019-07-02Workaround for Neoverse N1 erratum 1257314lauwal01
Neoverse N1 erratum 1257314 is a Cat B erratum [1], present in older revisions of the Neoverse N1 processor core. The workaround is to set a bit in the implementation defined CPUACTLR3_EL1 system register, which prevents parallel execution of divide and square root instructions. [1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.pjdoc-466751330-10325/index.html Change-Id: I54f0f40ff9043efee40d51e796b92ed85b394cbb Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
2019-07-02Workaround for Neoverse N1 erratum 1220197lauwal01
Neoverse N1 erratum 1220197 is a Cat B erratum [1], present in older revisions of the Neoverse N1 processor core. The workaround is to set two bits in the implementation defined CPUECTLR_EL1 system register, which disables write streaming to the L2. [1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.pjdoc-466751330-10325/index.html Change-Id: I9c3373f1b6d67d21ee71b2b80aec5e96826818e8 Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
2019-07-02Workaround for Neoverse N1 erratum 1207823lauwal01
Neoverse N1 erratum 1207823 is a Cat B erratum [1], present in older revisions of the Neoverse N1 processor core. The workaround is to set a bit in the implementation defined CPUACTLR2_EL1 system register. [1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.pjdoc-466751330-10325/index.html Change-Id: Ia932337821f1ef0d644db3612480462a8d924d21 Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
2019-07-02Workaround for Neoverse N1 erratum 1165347lauwal01
Neoverse N1 erratum 1165347 is a Cat B erratum [1], present in older revisions of the Neoverse N1 processor core. The workaround is to set two bits in the implementation defined CPUACTLR2_EL1 system register. [1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.pjdoc-466751330-10325/index.html Change-Id: I163d0ea00578245c1323d2340314cdc3088c450d Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
2019-07-02Workaround for Neoverse N1 erratum 1130799lauwal01
Neoverse N1 erratum 1130799 is a Cat B erratum [1], present in older revisions of the Neoverse N1 processor core. The workaround is to set a bit in the implementation defined CPUACTLR2_EL1 system register. [1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.pjdoc-466751330-10325/index.html Change-Id: I252bc45f9733443ba0503fefe62f50fdea61da6d Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
2019-07-02Workaround for Neoverse N1 erratum 1073348lauwal01
Neoverse N1 erratum 1073348 is a Cat B erratum [1], present in older revisions of the Neoverse N1 processor core. The workaround is to set a bit in the implementation defined CPUACTLR_EL1 system register, which disables static prediction. [1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.pjdoc-466751330-10325/index.html Change-Id: I674126c0af6e068eecb379a190bcf7c75dcbca8e Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
2019-06-17Merge "DSU: Apply erratum 936184 for Neoverse N1/E1" into integrationJohn Tsichritzis
2019-06-11DSU: Apply erratum 936184 for Neoverse N1/E1Louis Mayencourt
Change-Id: Idd08914bcb945ad6aa0621e594c95df88ee8f9c8 Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>
2019-06-10Merge changes from topic "jts/ti_fix" into integrationSoby Mathew
* changes: ti: k3: common: Remove coherency workaround for AM65x ti: k3: common: Use coherent memory for shared data
2019-06-07Merge "Neoverse N1: Introduce workaround for Neoverse N1 erratum 1315703" ↵John Tsichritzis
into integration
2019-06-06Neoverse N1: Introduce workaround for Neoverse N1 erratum 1315703Andre Przywara
Neoverse N1 erratum 1315703 is a Cat A (rare) erratum [1], present in older revisions of the Neoverse N1 processor core. The workaround is to set a bit in the implementation defined CPUACTLR2_EL1 system register, which will disable the load-bypass-store feature. [1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.pjdocpjdoc-466751330-1032/index.html Change-Id: I5c708dbe0efa4daa0bcb6bd9622c5efe19c03af9 Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2019-06-06ti: k3: common: Remove coherency workaround for AM65xAndrew F. Davis
We previously left our caches on during power-down to prevent any non-caching accesses to memory that is cached by other cores. Now with the last accessed areas all being marked as non-cached by USE_COHERENT_MEM we can rely on that to workaround our interconnect issues. Remove the old workaround. Change-Id: Idadb7696d1449499d1edff4f6f62ab3b99d1efb7 Signed-off-by: Andrew F. Davis <afd@ti.com>
2019-06-04Apply compile-time check for AArch64-only coresJohn Tsichritzis
Some cores support only AArch64 mode. In those cores, only a limited subset of the AArch32 system registers are implemented. Hence, if TF-A is supposed to run on AArch64-only cores, it must be compiled with CTX_INCLUDE_AARCH32_REGS=0. Currently, the default settings for compiling TF-A are with the AArch32 system registers included. So, if we compile TF-A the default way and attempt to run it on an AArch64-only core, we only get a runtime panic. Now a compile-time check has been added to ensure that this flag has the appropriate value when AArch64-only cores are included in the build. Change-Id: I298ec550037fafc9347baafb056926d149197d4c Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>
2019-05-29Merge "Cortex-A55: workarounds for errata 1221012" into integrationPaul Beesley
2019-05-28Cortex-A55: workarounds for errata 1221012Ambroise Vincent
The workaround is added to the Cortex-A55 cpu specific file. The workaround is disabled by default and have to be explicitly enabled by the platform integrator. Change-Id: I3e6fd10df6444122a8ee7d08058946ff1cc912f8 Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>
2019-05-24Add support for Branch Target IdentificationAlexei Fedorov
This patch adds the functionality needed for platforms to provide Branch Target Identification (BTI) extension, introduced to AArch64 in Armv8.5-A by adding BTI instruction used to mark valid targets for indirect branches. The patch sets new GP bit [50] to the stage 1 Translation Table Block and Page entries to denote guarded EL3 code pages which will cause processor to trap instructions in protected pages trying to perform an indirect branch to any instruction other than BTI. BTI feature is selected by BRANCH_PROTECTION option which supersedes the previous ENABLE_PAUTH used for Armv8.3-A Pointer Authentication and is disabled by default. Enabling BTI requires compiler support and was tested with GCC versions 9.0.0, 9.0.1 and 10.0.0. The assembly macros and helpers are modified to accommodate the BTI instruction. This is an experimental feature. Note. The previous ENABLE_PAUTH build option to enable PAuth in EL3 is now made as an internal flag and BRANCH_PROTECTION flag should be used instead to enable Pointer Authentication. Note. USE_LIBROM=1 option is currently not supported. Change-Id: Ifaf4438609b16647dc79468b70cd1f47a623362e Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
2019-05-14Disable speculative loads only if SSBS is supportedSami Mujawar
Examine the ID_AA64PFR1_EL1 bits 7:4 to see if speculative loads (SSBS) is implemented, before disabling speculative loads. Change-Id: I7607c45ed2889260d22a94f6fd9af804520acf67 Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
2019-05-07Merge changes from topic "sm/fix_a76_errata" into integrationSoby Mathew
* changes: Workaround for cortex-A76 errata 1286807 Cortex-A76: workarounds for errata 1257314, 1262606, 1262888, 1275112
2019-05-07Workaround for cortex-A76 errata 1286807Soby Mathew
The workaround for Cortex-A76 errata #1286807 is implemented in this patch. Change-Id: I6c15af962ac99ce223e009f6d299cefb41043bed Signed-off-by: Soby Mathew <soby.mathew@arm.com>
2019-05-07Cortex-A76: workarounds for errata 1257314, 1262606, 1262888, 1275112Soby Mathew
The workarounds for errata 1257314, 1262606, 1262888 and 1275112 are added to the Cortex-A76 cpu specific file. The workarounds are disabled by default and have to be explicitly enabled by the platform integrator. Change-Id: I70474927374cb67725f829d159ddde9ac4edc343 Signed-off-by: Soby Mathew <soby.mathew@arm.com>
2019-05-03Add compile-time errors for HW_ASSISTED_COHERENCY flagJohn Tsichritzis
This patch fixes this issue: https://github.com/ARM-software/tf-issues/issues/660 The introduced changes are the following: 1) Some cores implement cache coherency maintenance operation on the hardware level. For those cores, such as - but not only - the DynamIQ cores, it is mandatory that TF-A is compiled with the HW_ASSISTED_COHERENCY flag. If not, the core behaviour at runtime is unpredictable. To prevent this, compile time checks have been added and compilation errors are generated, if needed. 2) To enable this change for FVP, a logical separation has been done for the core libraries. A system cannot contain cores of both groups, i.e. cores that manage coherency on hardware and cores that don't do it. As such, depending on the HW_ASSISTED_COHERENCY flag, FVP includes the libraries only of the relevant cores. 3) The neoverse_e1.S file has been added to the FVP sources. Change-Id: I787d15819b2add4ec0d238249e04bf0497dc12f3 Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>
2019-04-25Cortex-A53: Fix reporting of missing errata when not neededAndrew F. Davis
Errata 819472, 824069, and 827319 are currently reported in a warning as missing during boot for platforms that do not need them. Only warn when the errata is needed for a given revision but not compiled in like other errata workarounds. Fixes: bd393704d2b1 ("Cortex-A53: Workarounds for 819472, 824069 and 827319") Signed-off-by: Andrew F. Davis <afd@ti.com> Change-Id: Ifd757b3d0e73a9bd465b98dc20648b6c13397d8d
2019-04-18Neoverse N1: Forces cacheable atomic to nearLouis Mayencourt
This patch forces all cacheable atomic instructions to be near, which improves performance in highly contended parallelized use-cases. Change-Id: I93fac62847f4af8d5eaaf3b52318c30893e947d3 Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>
2019-04-17DSU: Implement workaround for errata 798953Louis Mayencourt
Under certain near idle conditions, DSU may miss response transfers on the ACE master or Peripheral port, leading to deadlock. This workaround disables high-level clock gating of the DSU to prevent this. Change-Id: I820911d61570bacb38dd325b3519bc8d12caa14b Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>
2019-04-17DSU: Small fix and reformat on errata frameworkLouis Mayencourt
Change-Id: I50708f6ccc33059fbfe6d36fd66351f0b894311f Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>
2019-04-17Cortex-A35: Implement workaround for errata 855472Louis Mayencourt
Under specific conditions, the processor might issue an eviction and an L2 cache clean operation to the interconnect in the wrong order. Set the CPUACTLR.ENDCCASCI bit to 1 to avoid this. Change-Id: Ide7393adeae04581fa70eb9173b742049fc3e050 Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>
2019-04-12Cortex A9:errata 794073 workaroundJoel Hutton
On Cortex A9 an errata can cause the processor to violate the rules for speculative fetches when the MMU is off but branch prediction has not been disabled. The workaround for this is to execute an Invalidate Entire Branch Prediction Array (BPIALL) followed by a DSB. see:http://arminfo.emea.arm.com/help/topic/com.arm.doc.uan0009d/UAN0009_cortex_a9_errata_r4.pdf for more details. Change-Id: I9146c1fa7563a79f4e15b6251617b9620a587c93 Signed-off-by: Joel Hutton <Joel.Hutton@arm.com>
2019-04-08Add support for Cortex-A76AE CPUAlexei Fedorov
Change-Id: I0a81f4ea94d41245cd5150de341b51fc70babffe Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
2019-03-20Merge pull request #1887 from ambroise-arm/av/a76-cveDimitris Papastamos
Cortex-A76: Optimize CVE_2018_3639 workaround
2019-03-15Merge pull request #1888 from jts-arm/zeusDimitris Papastamos
Introduce preliminary support for Neoverse Zeus
2019-03-14Introduce preliminary support for Neoverse ZeusJohn Tsichritzis
Change-Id: If56d1e200a31bd716726d7fdc1cc0ae8a63ba3ee Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>
2019-03-14Apply variant 4 mitigation for Neoverse N1John Tsichritzis
This patch applies the new MSR instruction to directly set the PSTATE.SSBS bit which controls speculative loads. This new instruction is available at Neoverse N1 core so it's utilised. Change-Id: Iee18a8b042c90fdb72d2b98f364dcfbb17510728 Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>
2019-03-14Cortex-A76: Optimize CVE_2018_3639 workaroundAmbroise Vincent
Switched from a static check to a runtime assert to make sure a workaround is implemented for CVE_2018_3639. This allows platforms that know they have the SSBS hardware workaround in the CPU to compile out code under DYNAMIC_WORKAROUND_CVE_2018_3639. The gain in memory size without the dynamic workaround is 4KB in bl31. Change-Id: I61bb7d87c59964b0c7faac5d6bc7fc5c4651cbf3 Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>
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