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2024

【XiangShan Biweekly 66】20241223

Welcome to XiangShan biweekly column, this is the 66th 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 an issue with incorrect RAS predictor updates under power down and up reset, the backend fixed errors in calculating the trap PC for certain interrupts processed in VS mode, and the memory and cache subsystem fixed several bugs releated to misaligned load / store requests. This update also includes the latest performance improvements of the Kunminghu architecture.

【香山双周报 66】20241223 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 66 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 RAS 预测器在单核下电 - 上电复位情况下更新不正确的问题,后端修复在 VS 模式处理的部分中断,计算陷入 PC 出错的问题,访存和缓存部分修复非对齐访存相关的若干 Bug。本期还更新了昆明湖架构近期性能。

【XiangShan Biweekly 65】20241209

Welcome to XiangShan biweekly column, this is the 65th 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 incorrect flushing of iTLB in certain situations, the backend fixed calculation errors in scalar/vector half-precision floating-point extensions (Zfh/Zvfh) functional units, and the memory and cache subsystem fixed the bug that a TLB corresponding item is replaced during guest page fault processing. This update also includes the latest performance improvements of the Kunminghu architecture.

【香山双周报 65】20241209 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 65 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 MMIO / 非 MMIO 边界跨越时全部报异常的问题,后端修复标量/向量半精度浮点拓展 (Zfh/Zvfh) 功能单元计算错误,访存和缓存部分修复 guest page fault 处理过程中,TLB 相应项被替换导致的卡死 Bug。本期还更新了昆明湖架构近期性能。

【XiangShan Biweekly 64】20241125

Welcome to XiangShan biweekly column, this is the 64th 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 BPU s2_fire assignment, the backend completed remaining fields design in dcsr for Debug Module, and the memory and cache subsystem fixed gpaddr generation logic when guest page fault occurs in instruction fetch. This update also includes the latest performance improvements of the Kunminghu architecture.

【香山双周报 64】20241125 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 64 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 BPU s2_fire 的赋值,后端调试模式完成 dcsr 剩余字段设计,访存和缓存部分修复前端取指出现 guest page fault 时,gpaddr 生成逻辑错误的 Bug。本期还更新了昆明湖架构近期性能。

【XiangShan Biweekly 63】20241111

Welcome to XiangShan biweekly column, this is the 63th 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 added reset for FTB pred_data register, the backend merged VS/S/M Mode Double Trap Extension (Ss/mdbltrp) into master, and the memory and cache subsystem fixed the bug in CMO.clean/flush operations when there is an L1 miss and an L2 hit. This update also includes the latest performance improvements of the Kunminghu architecture.

【香山双周报 63】20241111 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 63 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,前端添加 FTB pred_data 寄存器的复位,后端 VS/S/M 模式双重陷入拓展 (Ss/mdbltrp) 合入主线,访存和缓存部分修复 CMO.clean / flush 操作在 L1 miss、L2 hit 时的 Bug。本期还更新了昆明湖架构近期性能。

【XiangShan Biweekly 62】20241028

Welcome to XiangShan biweekly column, this is the 62th 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 Mux1H on the data path of ECC to Bus Error Unit, the backend is merging VS/S/M Mode Double Trap Extension (Ss/mdbltrp) into master, and the memory and cache subsystem fixed handling logic of vector exceptions. This update also includes the latest performance improvements of the Kunminghu architecture.

【香山双周报 62】20241028 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 62 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,前端修复了 ECC 到 Bus Error Unit 路径上的 Mux1H,后端 VS/S/M 模式双重陷入拓展 (Ss/mdbltrp) 正在合入主线,访存和缓存部分修复了向量异常相关的 Bug。本期还更新了昆明湖架构近期性能。