The backdoor request in b_transport is only used for hinting the dmi
capability. Since most of traffic patterns are continous, we can cache
the previous backdoor request result to spare the backdoor inspect of
next request.
Change-Id: I53c47226f949dd0be19d52cad0650fcfd62eebbc
This commit adjusts the logic in VectorFloatMaskMacroConstructor to
ensure the %(copy_old_vd)s section is not skipped when vl = 0, ensuring
correct values in destination vector register.
Change-Id: I2478722d6f003a0f2e4b3cd0ba3e845bed938ee6
This is the same problem as #715 .
This is more complaint with the VMSAv8-64, which is using Translation
Regimes instead of
historical (Armv7) isHyp tagging and the ExceptionLevel managing the
translation. This greatly
simplifies translation code, specially with FEAT_VHE where the managing
el (EL2) could handle to different
translation regimes (EL and EL2&0).
The PCI configuration space is 256 bytes, yet because the
PCI_CONFIG_SIZE macro is 0xff, the final register allocation in the IDE
controller only allocated up to byte 255.
Change-Id: I1aef2cad9df366ee8425edb410037061eb29ae33
This change improves the functionality of strided generator to create
trace with better flexibility.
It allows the user to manually set offset and stride size instead of
calculating it based on a "gen_id".
This way different patterns could be created with the same SimObject.
In addition, this change adds stdlib components for strided generator.
We therefore rename it to exceptionLevel
Change-Id: I2a3aabaefa315d95bd034b13d95d5a5b0b8e9319
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
With the old code, the MAIR_EL1 register was checked when inserting
an EL2&0 TLB entry
Change-Id: I064032fb2946777c2f4c50c06a124f828245e18a
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
The problem with:
ELIs64(tc, aarch64EL == EL0 ? EL1 : aarch64EL);
Is that when we are executing at EL0 in host (EL2&0 translation
regime), the execution mode (AArch32 vs AArch64) is dictated
by EL2 and not by EL1 (which is the guest)
Change-Id: I463a2a9461c94d0886990ae3d0a6e22aeb4b9ea3
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
This is the final step in the transformation process.
We limit the use of the "managing Exception Level" for
a translation in favour of the more standard "Translation
Regime"
This greatly simplifies our code, especially with VHE
where the managing el (EL2) could handle to different
translation regimes (EL and EL2&0).
We can therefore remove the isHost flag wherever it got
used. That case is automatically handled by the proper
regime value (EL2&0)
Change-Id: Iafd1d2ce4757cfa6598656759694e5e7b05267ad
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
The Xt is not part of the architectural name of the register
and it was likely added with the introduction of extended
register (Xt) TLBIs in Armv8 to differentiate them with
the old Armv7 ones.
The use of _Xt was not consistent anyway: newer TLBIs were
already omitting it.
Change-Id: Ic805340ffa7b5770e3b75a71bfb76e055e651f8b
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
We should stop using isHyp.. An hypervisor entry is flagged
already by the EL of the entry (el == EL2)
Change-Id: I20c3d06fa2b04e0b938a380ca917d0b596eddcf2
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
The isHyp descriptor is an old artifact of armv7 and it flags a PL2
(AArch32) or EL2 & EL2&0 (AArch64) translations.
It is commonly set according to the EL/mode [1] but it may differ from
the execution state in case of explicit translation requests (via
the AT instruction as an example [2]).
There is really no need to complicate the masking of isHyp. We should
just make use of the tranType method (in charge of setting aarch64EL)
to properly set aarch64EL, and make isHyp coincide with the case of
aarch64EL == EL2.
This is a step towards the removal of the isHyp flag.
More specifically the patch does the following:
* HypMode translation type moved in the EL2 case
The translation is used by
ATS1HR/ATS1HW:
Performs stage 1 address translation as defined for PL2 and the
Non-secure state
* S1S2NsTran translation type moved in the EL1 case
The translation is used by
ATS12NSOPR/ATS12NSOPW:
Performs stage 1 and 2 address translations as defined for PL1 and the
Non-secure state
* S1CTran translation type can be at either EL1 or EL3
The translation is used by
ATS1CPR/ATS1CPW
Performs stage 1 address translation as defined for PL1 and the current
Security state
[1]: https://github.com/gem5/gem5/blob/stable/src/arch/arm/mmu.cc#L1281
[2]: https://github.com/gem5/gem5/blob/stable/src/arch/arm/mmu.cc#L1282
Change-Id: Ie653170f6053c5d8141a2de9f50febf5bf53ab9c
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
This removes the gfx803 and gfx801 targets for building applications as
GCN3 will be removed from gem5. It also removes the copy/paste bug from
the HACC docker which is clobbering the HCC targets and removing gfx902.
Change-Id: I9a0d7fda437e797baf0f743a0a450948b9260b07
Co-authored-by: Harshil Patel <hpppatel@ucdavis.edu>
This change adds support to use KVM cores on the ARM board. The board
simulates gic to enable KVM, similar to the gem5 ARM FS configs. The
limitation is that it only supports VExpress_GEM5_V1.
Signed-off-by: Kaustav Goswami <kggoswami@ucdavis.edu>
This pull request has two commits, one is to fix the segmentation fault,
> arch-riscv: Fix segmentation fault in vmsbf/vmsof/vmsif
This commit simplifies the conditional logic in vmsbf/vmsof/vmsif
by removing an unnecessary variable and condition.
The updated logic checks 'this->vm' or the result of 'elem_mask(v0, i)'
directly, which prevents a segmentation fault regardless of
whether 'vm' is set or not.
another is to fix the incorrect output,
> arch-riscv: Add template Vector1Vs1VdMaskDeclare
This commit adds a new template, Vector1Vs1VdMaskDeclare, to replace
the use of Vector1Vs1RdMaskDeclare in Vector1Vs1VdMaskFormat.
The change addresses the issue with the number of indices in
srcRegIdxArr.
Only two indices are available in Vector1Vs1RdMaskDeclare, but
instructions
that use Vector1Vs1VdMaskFormat, like 'vmsbf', require three indices
(for vs1, vs2(old_vd), and vm) to function correctly.
Demonstration of incorrect output compared with spike:
[vmsbf](https://github.com/QQeg/rvv_intrinsic_testcases/tree/master/vmsbf)
```
**** REAL SIMULATION ****
src/sim/simulate.cc:199: info: Entering event queue @ 0. Starting simulation...
Vs1 = 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Vd = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Exiting @ tick 23504000 because exiting with last active thread context
----SPIKE----
bbl loader
Vs1 = 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Vd = 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
```
We should clean the instruction buffer after the fence.i is execute
to avoid execute old instruction for self-modifying code
Change-Id: Iece0ee0d10631fcd9bd17ee67cf0c92f72acdbd8
This commit adds a new template, Vector1Vs1VdMaskDeclare, to replace
the use of Vector1Vs1RdMaskDeclare in Vector1Vs1VdMaskFormat.
The change addresses the issue with the number of indices in srcRegIdxArr.
Only two indices are available in Vector1Vs1RdMaskDeclare, but instructions
that use Vector1Vs1VdMaskFormat, like 'vmsbf', require three indices
(for vs1, vs2(old_vd), and vm) to function correctly.
Change-Id: I0c966e11289ce07efcc3b0cc56948311289530ad
This commit simplifies the conditional logic in vmsbf/vmsof/vmsif
by removing an unnecessary variable and condition.
The updated logic checks 'this->vm' or the result of 'elem_mask(v0, i)'
directly, which prevents a segmentation fault regardless of
whether 'vm' is set or not.
Change-Id: I799fa7b684ff98959a64f9694ef9c854f3a1f43a
These are:
FEAT_AES,
FEAT_PMULL,
FEAT_SHA256,
FEAT_SHA1,
FEAT_CRC32
With this patch we are also enabling them by default by adding them to
the Armv8 release object. Some of them are mandatory anyway since
Armv8.1
Change-Id: I221ae8646d91151fdfaf97a4815168a4fe3d8c5a
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
If the NOP count of an SDMA NOP packet goes beyond the wptr address, the
queue decode method will loop infinitely. If a packet comes in with a
bad count this causes gem5 to hang. This change advances the rptr one
dword at a time until either reaching the NOP count or when rptr == wptr
to prevent this issue.
Change-Id: Ib2c0f74a477bff27890c9c064bb4190e76e513bd
The .mailmap file is designed to maintain a record of unique
contributors, aiming for a single identifier for each person. What is
included in this file does not impact or alter commits; rather, it just
merges the counts for all commits by one person under a single name.
Related to issue #703 , this PR removes GCN3 related files and updates
source code, documentation, and tests to switch over to Vega is that was
not done already. Highlights are:
- Remove all src/arch/amdgpu/gcn3 files and update Kconfigs.
- Remove references to GCN3 and replace with Vega where applicable.
- Update the build targets in the gcn-gpu Docker. This will need to be
rebuilt but not urgently.
- Remove the GCN3 tag in testlib. Most tests seem to be using Vega
already, so that commit is small.
Vega (gfx900) introduced new memory aperture registers to get the base
address and limit for LDS and private (scratch) memory. These have not
commonly been used by the compiler until ROCm 6. Now that the compiler
is generating reads from these special registers, implement the support
for them.
Tested with LULESH which is using the SHARED_BASE register (LDS) with
ROCm 6.0. This assembly seems to replace S_GETREG_B32 emitted by the
ROCm 5 compiler.
Change-Id: Id2bd26ce8ef687c84a647fa2ac2da54d657913e5
By default all SDMA queues are privileged queues, meaning the addresses
in SDMA packets use the privileged translation tables. RLC queues
(sometimes called user queues) are not necessarily privileged and might
use user translation tables. RLC queues are used more often in ROCm 6.0
exposing an issue with invalid translations with RLC queues.
This changeset checks the priv bit in the SDMA MQD when an RLC queue is
mapped. Each packet type which uses an address then checks the bit
before performing translation. Tested with daily/weekly tests with a
ROCm 6.0 disk image and tests are passing.
Change-Id: I6122fbc194e8d6f5d38e81f1b0e11646d90e0ea0
This PR reorganizes the instructions.cc into multiple files and renames
some files which do not match their corresponding header file names. The
intention is to make iterating on development of these files faster.
