History log of /XiangShan/src/ (Results 251 – 275 of 9484)
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3a52055410-Jan-2025 Tang Haojin <[email protected]>

style(DebugModule): remove unnecessary `XSDebugModuleParams` (#4155)

It is more straight-forward to use `DebugModuleParams` in `Config.scala`.

15fbca4909-Jan-2025 Zhaoyang You <[email protected]>

fix(rob): fix needflush when rob has redirect (#4153)

* This PR fix the boundary case where rob has redirect.
* The `needflush` signal should be `true` when rob flushes all entries.

Co-authored-by:

fix(rob): fix needflush when rob has redirect (#4153)

* This PR fix the boundary case where rob has redirect.
* The `needflush` signal should be `true` when rob flushes all entries.

Co-authored-by: xiaofeibao-xjtu <[email protected]>

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c51f1a7b09-Jan-2025 sumailyyc <[email protected]>

fix(XSTop): assign unique nodeID to each core (#4151)

Without this commit, CHI messages cannot be correctly routed in
multi-core scenarios, leading to simulation errors.

db81ab7009-Jan-2025 Yanqin Li <[email protected]>

fix(uncache): consider both corrupt and denied when granting (#4150)

From TileLink SPEC 1.9.3 Chapter7 "TileLink Uncached Lightweight
(TL-UL)":

* AccessAck: `d_corrupt` is reserved and must be 0.
*

fix(uncache): consider both corrupt and denied when granting (#4150)

From TileLink SPEC 1.9.3 Chapter7 "TileLink Uncached Lightweight
(TL-UL)":

* AccessAck: `d_corrupt` is reserved and must be 0.
* AccessAckData, `d_corrupt` being HIGH indicates that masked data in
this beat is corrupt.

So it need consider both `d_denied` and `d_corrupt` when geting the
data.

For uncache now, it complete in one beat, so there can execute `d_denied
|| d_corrupt` directly.

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1021e13909-Jan-2025 Anzo <[email protected]>

fix(LoadUnit): `fast replay` no longer requests to `RAR/RAW Queue` (#4149)

For `fast replay`, there is no need to request access to the `RAW/RAW
Queue`.
This prevents the `RAW Queue` from constantly

fix(LoadUnit): `fast replay` no longer requests to `RAR/RAW Queue` (#4149)

For `fast replay`, there is no need to request access to the `RAW/RAW
Queue`.
This prevents the `RAW Queue` from constantly ping-ponging between `not
full/full` due to `revoke`.

These two lines were removed because it would lead to combinatorial
logic loops and it was an unwanted condition:

https://github.com/OpenXiangShan/XiangShan/blob/dfc474ebe17bbfb1bf2ec4cc122301a9c7998e09/src/main/scala/xiangshan/mem/pipeline/LoadUnit.scala#L1269-L1270

---

**This may result in some performance gains.**

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dfc474eb09-Jan-2025 Anzo <[email protected]>

style(LoadUnit): removes redundant 'fast_rep_out' assignments (#4148)

3a3744e406-Jan-2025 chengguanghui <[email protected]>

feat(DM, hartReset): support `hartReset` which could reset selected harts

* Add hartResetReq in XSNocTop.
* Support `hartReset` features

23767fc308-Jan-2025 Zhaoyang You <[email protected]>

feat(CSR): set init 0 for htimedelta csr (#4145)

14651e9807-Jan-2025 Anzo <[email protected]>

fix(StoreQueue): remove the incorrect redirect logic (#4139)

77733a7b07-Jan-2025 Yanqin Li <[email protected]>

submodule(CoupledL2): bump CoupledL2 (#4140)

1. https://github.com/OpenXiangShan/CoupledL2/pull/309
2. https://github.com/OpenXiangShan/CoupledL2/pull/312

da51a7ac07-Jan-2025 Anzo <[email protected]>

fix(VLSU): fix vector exception writeback to 'MergeBuffer' logic (#4137)

Fixed the bug of abnormal signal loss when writing back.

Previously, we expected to compare only the ports of the writebacks

fix(VLSU): fix vector exception writeback to 'MergeBuffer' logic (#4137)

Fixed the bug of abnormal signal loss when writing back.

Previously, we expected to compare only the ports of the writebacks that
triggered the exception and pick the oldest.

But amazingly, I just realised that the implementation doesn't match the
annotation. The current implementation can be problematic in that if
the write-back port that did not have an exception is older, the port that
triggered the exception is not elected.

Use s3_exception to try to optimise timing.

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c75efc0007-Jan-2025 Anzo <[email protected]>

fix(LoadUnit): use `lqIdx` to determine age (#4136)

1. `lqIdx` has less bit width.
2. for vectors, the `robIdx` is the same for multiple `flow`s.
Previously, for vectors, we would additionally use `

fix(LoadUnit): use `lqIdx` to determine age (#4136)

1. `lqIdx` has less bit width.
2. for vectors, the `robIdx` is the same for multiple `flow`s.
Previously, for vectors, we would additionally use `uopIdx` for
judgement. But actually, in theory, we only need to use `lqIdx/sqIdx`.

Here we change the age judgement for vectors to `lqIdx` to ensure
accurate age judgement. And change the age judgement of scalar to
`lqIdx` as well to reduce the cost.

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e565f15a06-Jan-2025 HeiHuDie <[email protected]>

fix(zvfh): fix zvfh corner case which should support vsew8
* vfwcvtfx,vfwcvtfxu,vfncvtxuf,vfncvtxf,vfncvtrodxuf,vfncvtrodxf should support vsew8

552d2d4e06-Jan-2025 Tang Haojin <[email protected]>

chore(Parameters): add svnapot extension string (#4133)

fc89b31e20-Dec-2024 linzhida <[email protected]>

fix(hideleg): fix the read value of the LCOFI bit of hideleg.

For bits of mideleg that are zero, the corresponding bits in
hideleg, hip, and hie are read-only zeros.

The VSSIP, VSTIP, VSEIP in mide

fix(hideleg): fix the read value of the LCOFI bit of hideleg.

For bits of mideleg that are zero, the corresponding bits in
hideleg, hip, and hie are read-only zeros.

The VSSIP, VSTIP, VSEIP in mideleg are read-only ones
when the H extension is implemented.

When the hypervisor extension is implemented, if a bit is zero in
the same position in both mideleg and mvien, then that bit is
read-only zero in hideleg (in addition to being read-only zero in
sip, sie, hip, and hie). But if a bit for one of interrupts 13-63
is a one in either mideleg or mvien, then the same bit in hideleg
may be writable or may be read-only zero, depending on the
implementation. No bits in hideleg are ever read-only ones. The
RISC-V Privileged Architecture further constrains bits 12:0 of
hideleg.

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7cc7723406-Jan-2025 Zhaoyang You <[email protected]>

timing(CSR): using addr/wdata after 1 cycle for writing frontend and memory (#4119)

Register 1 cycle addr and wdata, then write to frontend and memory.

398aeef606-Jan-2025 Tang Haojin <[email protected]>

fix(Rename): fuse lui-load only if `rfWen` of lui is true (#4131)

d94fbfff05-Jan-2025 Tang Haojin <[email protected]>

fix(Unprivileged): wait a cycle to update `time` when `nextV =/= v` (#4132)

3642c22f05-Jan-2025 Muzi <[email protected]>

fix(exception): width of exception type should be explicitly noted (#4124)

718a93f503-Jan-2025 Haoyuan Feng <[email protected]>

feat(Svnapot): support Svnapot extension (#4107)

2f0227ef03-Jan-2025 cz4e <[email protected]>

area(MainPipe): remove duplicate signals (#4117)

ca892e7303-Jan-2025 xu_zh <[email protected]>

fix(ICacheMissUnit): clear corrupt_r when response is sent to MainPipe (#4112)

51aa1b6002-Jan-2025 xiaofeibao-xjtu <[email protected]>

fix(redirectGen): fix bug of csr's cfiUpdate (#4118)

ae39693102-Jan-2025 Yanqin Li <[email protected]>

submodule(CoupledL2): bump for bop mem check (#4115)

186eb48d02-Jan-2025 sumailyyc <[email protected]>

submodule(OpenLLC): add support for top-down analysis (#4113)

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