Update the revision and variant information in the
errata ABI file, neoverse_v1.S file for erratum ID - 2294912
to match the revision and variant in the latest SDEN.
SDEN documentation:
https://developer.arm.com/documentation/SDEN-1401781/latest
Change-Id: I38a0f53c3515860ba442b5c0872c8ab051fdda6f
Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>
Update the revision and variant information in the
errata ABI file, cortex_X2.S file for erratum ID - 2058056
to match the revision and variant in the latest SDEN.
SDEN documentation:
https://developer.arm.com/documentation/SDEN-1775100/latest
Change-Id: I28ee39949d977c53d6f5243100f0c29bc3c0428c
Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>
Update the revision and variant information in the
cortex_a78_ae.s and errata ABI file for erratum ID - 2376748
based on the latest SDEN.
SDEN documentation:
https://developer.arm.com/documentation/SDEN-1707912/latest
Change-Id: I082aac41adf717b0d5d59046a8933a3f5a3de94f
Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>
Update the revision and variant information in the
errata ABI file, cortex_A710.S file for erratum ID - 2058056
and erratum ID - 2055002 to match the revision and variant
in the latest SDEN.
SDEN documentation:
https://developer.arm.com/documentation/SDEN-1775101/latest
Change-Id: Ie010dae90dabf8670f588a06f9a606cf41e22afa
Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>
Cortex-X3 erratum 2070301 is a Cat B erratum that applies to all
revisions <= r1p2 and is still open.
The workaround is to write the value 4'b1001 to the PF_MODE bits
in the IMP_CPUECTLR2_EL1 register. This places the data prefetcher
in the most conservative mode instead of disabling it.
SDEN documentation:
https://developer.arm.com/documentation/2055130/latest
Change-Id: I337c4c7bb9221715aaf973a55d0154e1c7555768
Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>
Neoverse V2 erratum 2743011 is a Cat B erratum that applies to
all revisions <= r0p1 and is fixed in r0p2. The workaround is to
set CPUACTLR5_EL1[56:55] to 2'b01.
SDEN documentation:
https://developer.arm.com/documentation/SDEN2332927/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I0e06ca723a1cce51fb027b7160f3dd06a4c93e64
Neoverse V2 erratum 2779510 is a Cat B erratum that applies to
all revisions <= r0p1 and is fixed in r0p2. The workaround is to
set bit[47] of CPUACTLR3_EL1 which might have a small impact on
power and negligible impact on performance.
SDEN documentation:
https://developer.arm.com/documentation/SDEN2332927/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I6d937747bdcbf2913a64c4037f99918cbc466e80
Neoverse V2 erratum 2719105 is a Cat B erratum that applies to all
revisions <= r0p1 and is fixed in r0p2.
The erratum is avoided by setting CPUACTLR2_EL1[0] to 1 to force
PLDW/PFRM ST to behave like PLD/PRFM LD and not cause invalidations
to other PE caches. There might be a small performance degradation
to this workaround for certain workloads that share data.
SDEN documentation:
https://developer.arm.com/documentation/SDEN2332927/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: Id026edcb7ee1ca93371ce0001d18f5a8282c49ba
Neoverse V2 erratum 2331132 is a Cat B erratum that applies to all
revisions <= r0p2 and is still open. The workaround is to write the
value 4'b1001 to the PF_MODE bits in the IMP_CPUECTLR2_EL1 register
which will place the data prefetcher in the most conservative mode
instead of disabling it.
SDEN documentation:
https://developer.arm.com/documentation/SDEN2332927/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: Ic6c76375df465a4ad2e20dd7add7037477d973c1
Cortex-X3 erratum 2742421 is a Cat B erratum that applies to
all revisions <= r1p1 and is fixed in r1p2. The workaround is to
set CPUACTLR5_EL1[56:55] to 2'b01.
SDEN documentation:
https://developer.arm.com/documentation/2055130/latest
Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>
Change-Id: Idadd323e419739fe909b9b68ea2dbe857846666b
Neoverse N2 erratum 2009478 is a Cat B erratum that applies to
revision r0p0 and is fixed in r0p1. The workaround is to clear
the ED bit for all core error records before setting the PWRDN_EN
bit in CPUPWRCTLR_EL1 to request a power down.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1982442/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: Ic5ef58c9e795b90026af1d2b09edc0eea3ceee51
Errata report order is enforced to be in ascending order. To achieve
this with the errata framework this has to be done at the definition
level.
Also rename the disable_non_temporal_hint to its erratum number to
conform to convention.
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: Id474872afebf361ab3d21c454ab3624db8354045
Neoverse N2 erratum 2779511 is a Cat B erratum that applies to
all revisions <=r0p2 and is fixed in r0p3. The workaround is to
set bit[47] of CPUACTLR3_EL1
SDEN documentation:
https://developer.arm.com/documentation/SDEN1982442/latest
Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com>
Change-Id: Iaa0e30de8473ecb1df1fcca3a45904aac2e419b3
Neoverse N2 erratum 2743014 is a Cat B erratum that applies to
all revisions <=r0p2 and is fixed in r0p3. The workaround is to
set CPUACTLR5_EL1[56:55] to 2'b01.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1982442/latest
Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com>
Change-Id: Ie7e1be5dea9d1f74738f9fed0fb58bfd41763192
Certain Neoverse N2 erratum in docs were out of date with the latest
SDEN document and hence updated it to match the latest
SDEN documentation:
https://developer.arm.com/documentation/SDEN1707916/latest
Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com>
Change-Id: I5d82a56388a46a09a42b940a633ecebdde0c74e3
Neoverse V2 erratum 2801372 is a Cat B erratum that applies to
all revisions <=r0p1 and is fixed in r0p2. The workaround is to
insert a dsb before the isb in the power down sequence.
This errata is explained in SDEN 2332927 available at:
https://developer.arm.com/documentation/SDEN2332927
Change-Id: I8716b9785a67270a72ae329dc49a2f2239dfabff
Signed-off-by: Moritz Fischer <moritzf@google.com>
Also add a recommended Procedure Call Standard (PCS) to use inside CPU
files and split everything into sections to make it easier to follow.
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: Idd876d8e598b5dfe1193aa3e7375c52f6edf5671
The workarounds for these below mentioned errata are not implemented
in EL3, but the flags can be enabled/disabled at a platform level
based on arm/non-arm interconnect IP. The ABI helps assist the Kernel
in the process of mitigation for the following errata:
Cortex-A715: erratum 2701951
Neoverse V2: erratum 2719103
Cortex-A710: erratum 2701952
Cortex-X2: erratum 2701952
Neoverse N2: erratum 2728475
Neoverse V1: erratum 2701953
Cortex-A78: erratum 2712571
Cortex-A78AE: erratum 2712574
Cortex-A78C: erratum 2712575
EL3 provides an appropriate return value via errata ABI when the
kernel makes an SMC call using the EM_CPU_ERRATUM_FEATURES FID with the
appropriate erratum ID.
Change-Id: I35bd69d812dba37410dd8bc2bbde20d4955b0850
Signed-off-by: Sona Mathew <SonaRebecca.Mathew@arm.com>
Cortex-A78C erratum 1827440 is a Cat B erratum that applies to
revision r0p0 and is fixed in r0p1.
The workaround is to set CPUACTLR2_EL1[2], which forces atomic store
operations to write-back memory to be performed in the L1 data cache.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1707916/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I41d8ef48f70216ec66bf2b0f4f03ea8d8c261ee7
Cortex-A78C erratum 1827430 is a Cat B erratum that applies to
revision r0p0 and is fixed in r0p1.
The workaround is to set the CPUECTLR_EL1[53] to 1, which disables
allocation of splintered pages in the L2 TLB.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1707916/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: Ie68771bdd3bddeff54d06b6a456dad4a7fc27426
Neoverse V1 erratum 2743233 is a Cat B erratum that applies to
all revisions <= r1p2 and is still open.
The workaround sets CPUACTLR5_EL1[56:55] to 2'b01.
SDEN documentation: https://developer.arm.com/documentation/SDEN1401781/latest
Change-Id: If51a6f4293fa8b5b35c44edd564ebb715ba309a1
Signed-off-by: Sona Mathew <SonaRebecca.Mathew@arm.com>
Cortex-A78C erratum 2779484 is a Cat B erratum that applies to
revisions r0p1 and r0p2 and is still open.
The workaround is to set the CPUACTLR3_EL1[47] bit to 1. Setting this
bit might have a small impact on power and negligible impact on
performance.
SDEN documentation:
https://developer.arm.com/documentation/SDEN2004089/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I9a8c16a845c3ba6eb2f17a5119aa6ca09a0d27ed
Cortex-A78 erratum 2742426 is a Cat B erratum that applies to
all revisions <= r1p2 and is still open.
The workaround is to set the CPUACTLR5_EL1[56:55] to 2'b01.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1401784/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I42506a87d41c9e2b30bc78c08d22f36e1f9635c1
Cortex-A510 erratum 2684597 is a Cat B erratum that applies to revisions
r0p0, r0p1, r0p2, r0p3, r1p0, r1p1 and r1p2. It is fixed in r1p3. The
workaround is to execute a TSB CSYNC and DSB before executing WFI for
power down.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN1873361/latesthttps://developer.arm.com/documentation/SDEN1873351/latest
Change-Id: Ic0b24b600bc013eb59c797401fbdc9bda8058d6d
Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>
Neoverse V1 erratum 2779461 is a Cat B erratum that applies to
all revisions <=r1p2 and is still open.
The workaround sets CPUACTLR3_EL1[47] bit to 1. Setting this
bit might have a small impact on power and negligible impact
on performance.
SDEN documentation:https://developer.arm.com/documentation/SDEN1401781/latest
Change-Id: I367cda1779684638063d7292fda20ca6734e6f10
Signed-off-by: Sona Mathew <SonaRebecca.Mathew@arm.com>
Cortex-A78 erratum 2779479 is a Cat B erratum that applies to
all revisions <= r1p2 and is still open.
The workaround is to set the CPUACTLR3_EL1[47] bit to 1. Setting this
bit might have a small impact on power and negligible impact
on performance.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1401784/latest
Change-Id: I3779fd1eff3017c5961ffa101b357918070b3b36
Signed-off-by: Sona Mathew <SonaRebecca.Mathew@arm.com>
Cortex-A78C erratum 2772121 is a Cat B erratum that applies to
all revisions <=r0p2 and is still open. The workaround is to
insert a dsb before the isb in the power down sequence.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1707916/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I0e190dabffc20c4d3b9b98d1abeb50f308b80bb9
Cortex-X2 erratum 2282622 is a Cat B erratum that applies to
all revisions <=r2p1 and is still open. The workaround is to set
CPUACTLR2_EL1[0] to 1 to force PLDW/PFRM ST to behave like
PLD/PRFM LD and not cause invalidations to other PE caches.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1775100/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I43956aa4898a8608eedc5d0dd1471172c641a0c6
Cortex-A710 erratum 2282622 is a Cat B erratum that applies to
all revisions <=r2p1 and is still open. The workaround was earlier
applied to all revisions <= r2p0, this patch extends it to r2p1.
This was thought to have been fixed in r2p1 which is not the case.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1775101/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: Iad38a7fe57bec3f2d8977995acd601dcd9ae69c0
Neoverse N2 erratum 2743089 is a Cat B erratum that applies to
all revisions <=r0p2 and is fixed in r0p3. The workaround is to
insert a dsb before the isb in the power down sequence.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1982442/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: Idec862226bd32c91374a8bbd5d73d7ee480a34d9
Cortex-A78 erratum 2772019 is a Cat B erratum that applies to
all revisions <=r1p2 and is still open. The workaround is to
insert a dsb before the isb in the power down sequence.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1401784/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I0362da463eca777aa7a385bcdeb39b8549799f02
Neoverse V1 erratum 2743093 is a Cat B erratum that applies to
all revisions <=r1p2 and is still open. The workaround is to
insert a dsb before the isb in the power down sequence.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1401781/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I8ee7c16c14c4fd6ee35d20c855273ecfce0d1b32
Cortex-X2 erratum 2768515 is a Cat B erratum that applies to
all revisions <=r2p1 and is still open. The workaround is to
insert a dsb before the isb in the power down sequence.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1775100/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: Ib02688f7b6dc7f6ec305e68e8895174f6fd577a0
Cortex-A710 erratum 2768515 is a Cat B erratum that applies to
all revisions <=r2p1 and is still open. The workaround is to
insert a dsb before the isb in the power down sequence.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1775101/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: If17fe04d3fda0dba6b8aabdd837a1c53e1830ed5
Cortex-X3 erratum 2615812 is a Cat B erratum that applies to revisions
r0p0, r1p0, and r1p1, and is still open. The workaround is to disable
the use of the Full Retention power mode in the core (setting
WFI_RET_CTRL and WFE_RET_CTRL in CORTEX_X3_IMP_CPUPWRCTLR_EL1 to 0b000).
SDEN can be found here:
https://developer.arm.com/documentation/SDEN2055130/latest
Change-Id: I5ad66df3e18fc85a6b23f6662239494ee001d82f
Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>
Cortex-A77 erratum 2743100 is a Cat B erratum that applies to revisions
r0p0, r1p0, r1p1, and is still open. The workaround is to insert a dsb
before the isb in the power down sequence.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN1152370/latest
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: I8e49a2dac8611f31ace249a17ae7a90cd60e742a
Cortex-A76 erratum 2743102 is a Cat B erratum that applies to
all revisions <=r4p1 and is still open. The workaround is to
insert a dsb before the isb in the power down sequence.
SDEN documentation:
https://developer.arm.com/documentation/SDEN885749/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: Ie2cd73bd91417d30b5633d80b2fbee32944bc2de
Neoverse N1 erratum 2743102 is a Cat B erratum that applies to
all revisions <=r4p1 and is still open. The workaround is to
insert a dsb before the isb in the power down sequence.
SDEN documentation:
https://developer.arm.com/documentation/SDEN885747/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I81a8793c1a118764df3ac97b67f5e088f56f6a20
Cortex-A710 erratum 2291219 is a Cat B erratum that applies to revisions
r0p0, r1p0, and r2p0, and is fixed in r2p1. The workaround is to set
CPUACTLR2_EL1[36] to 1 before the power down sequence that sets
CORE_PWRDN_EN. This allows the cpu to retry the power down and prevents
the deadlock. TF-A never clears this bit even if it wakes up from the
wfi in the sequence since it is not expected to do anything but retry to
power down after and the bit is cleared on reset.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN1775101/latest
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: I7d3a97dfac0c433c0be386c1f3d2f2e895a3f691
Cortex-X3 erratum 2313909 is a Cat B erratum that applies to revisions
r0p0 and r1p0, and is fixed in r1p1. The workaround is to set
CPUACTLR2_EL1[36] to 1 before the power down sequence that sets
CORE_PWRDN_EN. This allows the cpu to retry the power down and prevents
the deadlock. TF-A never clears this bit even if it wakes up from the
wfi in the sequence since it is not expected to do anything but retry to
power down after and the bit is cleared on reset.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN2055130/latest
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: I5935b4bcd1e6712477c0d6eab2acc96d7964a35d
Neoverse-N2 erratum 2326639 is a Cat B erratum that applies to revision
r0p0 and is fixed in r0p1. The workaround is to set CPUACTLR2_EL1[36] to
1 before the power down sequence that sets CORE_PWRDN_EN. This allows
the cpu to retry the power down and prevents the deadlock. TF-A never
clears this bit even if it wakes up from the wfi in the sequence since
it is not expected to do anything but retry to power down after and the
bit is cleared on reset.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN1982442/latest/
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: I9a325c5b9b498798e5efd5c79a4a6d5bed97c619
