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  • 分类于 Biweekly-en
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【XiangShan Biweekly 79】20250623

Welcome to XiangShan biweekly column, this is the 79th issue of our biweekly column. Through this column, we will regularly introduce the progress of XiangShan, hoping to learn and improve together with you.

Recently, various teams working on Kunminghu have continued to advance optimizations in area, timing, and power consumption. In addition, the backend fixed incorrect update of xstatus.VS when a vector memory access instruction raises an exception, and the memory and cache subsystem fixed performance degradation after context switch caused by ineffective global bit setting in page tables.

  • 分类于 Biweekly
  • 需要 2 分钟阅读时间

【香山双周报 79】20250623 期

欢迎来到我们的双周报专栏，本次是香山双周报专栏的第 79 期。我们将通过这一专栏，定期介绍香山的开源进展，希望与大家共同学习、一起进步。

近期，昆明湖各组持续推进面积、时序、功耗的优化。此外，后端修复向量访存指令发生异常时，xstatus.VS 更新错误的问题，访存和缓存部分修复页表 global 设置导致进程切换失败问题。

  • 分类于 Biweekly-en
  • 需要 4 分钟阅读时间

【XiangShan Biweekly 78】20250609

Welcome to XiangShan biweekly column, this is the 78th issue of our biweekly column. Through this column, we will regularly introduce the progress of XiangShan, hoping to learn and improve together with you.

Recently, various teams working on Kunminghu have continued to advance optimizations in area, timing, and power consumption. In addition, the backend has fixed a problem where sstateenx was not correctly generated as a Verilog module, and the memory and cache subsystem have fixed a bug where, on a misaligned and cross-page memory load request that raises an exception, the exception address written into xtval is incorrect. This update also includes the latest performance improvements of the Kunminghu architecture.

  • 分类于 Biweekly
  • 需要 2 分钟阅读时间

【香山双周报 78】20250609 期

欢迎来到我们的双周报专栏，本次是香山双周报专栏的第 78 期。我们将通过这一专栏，定期介绍香山的开源进展，希望与大家共同学习、一起进步。

近期，昆明湖各组持续推进面积、时序、功耗的优化。此外，后端修复 sstateenx 未正确生成为 Verilog 模块的问题，访存修复非对齐且跨页的访存请求发生异常时，写入 xtval 的异常地址错误的 Bug。本期还更新了昆明湖架构近期性能。

  • 分类于 Biweekly-en
  • 需要 3 分钟阅读时间

【XiangShan Biweekly 77】20250526

Welcome to XiangShan biweekly column, this is the 77th issue of our biweekly column. Through this column, we will regularly introduce the progress of XiangShan, hoping to learn and improve together with you.

Recently, various teams working on Kunminghu have continued to advance optimizations in area, timing, and power consumption. In addition, the frontend fixed ICache performance counter, the backend fixed functional issues caused by out-of-order reads of xtopi/xtopei registers, and the memory and cache subsystem added handling logic for bus errors on Uncache Store.

  • 分类于 Biweekly
  • 需要 2 分钟阅读时间

【香山双周报 77】20250526 期

欢迎来到我们的双周报专栏，本次是香山双周报专栏的第 77 期。我们将通过这一专栏，定期介绍香山的开源进展，希望与大家共同学习、一起进步。

近期，昆明湖各组持续推进面积、时序、功耗的优化。此外，前端修复 ICache 性能计数器，后端修复 xtopi/xtopei 寄存器乱序读导致的功能问题，访存和缓存部分添加 Uncache Store 发生 bus error 的处理逻辑。

  • 分类于 Biweekly-en
  • 需要 3 分钟阅读时间

【XiangShan Biweekly 76】20250512

Welcome to XiangShan biweekly column, this is the 76th issue of our biweekly column. Through this column, we will regularly introduce the progress of XiangShan, hoping to learn and improve together with you.

Recently, various teams working on Kunminghu have continued to advance optimizations in area, timing, and power consumption. In addition, the backend has fixed a number of bugs related to interrupt handling, and the memory and cache  have fixed many bugs related to StoreQueue, Uncache, and misalignment. This update also includes the latest performance improvements of the Kunminghu architecture.

  • 分类于 Biweekly
  • 需要 2 分钟阅读时间

【香山双周报 76】20250512 期

欢迎来到我们的双周报专栏，本次是香山双周报专栏的第 76 期。我们将通过这一专栏，定期介绍香山的开源进展，希望与大家共同学习、一起进步。

近期，昆明湖各组持续推进面积、时序、功耗的优化。此外，后端修复了中断处理相关的多处问题，访存修复了StoreQueue、Uncache、非对齐相关的多处问题。本期还更新了昆明湖架构近期性能。

  • 分类于 Biweekly-en
  • 需要 4 分钟阅读时间

【XiangShan Biweekly 75】20250428

Welcome to XiangShan biweekly column, this is the 75th issue of our biweekly column. Through this column, we will regularly introduce the progress of XiangShan, hoping to learn and improve together with you.

Recently, various teams working on Kunminghu have continued to advance optimizations in area, timing, and power consumption. In addition, the frontend changed FTQ meta SRAM size, the backend fixed an overflow issue of the ROB commit pointer in extreme cases, and the memory and cache subsystem fixed a bug in cbo.zero where RAW violation checks were not performed at cacheline granularity. This update also includes the latest performance improvements of the Kunminghu architecture.

  • 分类于 Biweekly
  • 需要 2 分钟阅读时间

【香山双周报 75】20250428 期

欢迎来到我们的双周报专栏，本次是香山双周报专栏的第 75 期。我们将通过这一专栏，定期介绍香山的开源进展，希望与大家共同学习、一起进步。

近期，昆明湖各组持续推进面积、时序、功耗的优化。此外，前端对 FTQ meta SRAM 的规格进行了修改，后端修复 rob 提交指针在极端情况下越界的问题，访存和缓存修复 cbo.zero 没有按 cacheline 粒度做 RAW 违例检查的问题。本期还更新了昆明湖架构近期性能。