3 Commits

Author	SHA1	Message	Date
Andrew Jones	0de65288d7	RISC-V: selftests: cbo: Ensure asm operands match constraints ... The 'i' constraint expects a constant operand, which fn and its constant derivative MK_CBO(fn) are, but passing fn through a function as a parameter and using a local variable for MK_CBO(fn) allow the compiler to lose sight of that when no optimization is done. Use a macro instead of a function and skip the local variable to ensure the compiler uses constants, matching the asm constraints. Reported-by: Yunhui Cui <cuiyunhui@bytedance.com> Closes: https://lore.kernel.org/all/20240117082514.42967-1-cuiyunhui@bytedance.com Fixes: a29e2a48af ("RISC-V: selftests: Add CBO tests") Signed-off-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20240117130933.57514-2-ajones@ventanamicro.com Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>	2024-01-17 17:46:55 -08:00
Christoph Müllner	ac7b2a02d6	tools: selftests: riscv: Fix compile warnings in cbo ... GCC prints a couple of format string warnings when compiling the cbo test. Let's follow the recommendation in Documentation/printk-formats.txt to fix these warnings. Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu> Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20231123185821.2272504-3-christoph.muellner@vrull.eu Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>	2024-01-11 08:02:48 -08:00
Andrew Jones	a29e2a48af	RISC-V: selftests: Add CBO tests ... Add hwprobe test for Zicboz and its block size. Also, when Zicboz is present, test that cbo.zero may be issued and works. Additionally provide a command line option that enables testing that the Zicbom instructions cause SIGILL and also that cbo.zero causes SIGILL when Zicboz it's not present. The SIGILL tests require "opt-in" with a command line option because the RISC-V ISA does not require unimplemented standard opcodes to issue illegal-instruction exceptions (but hopefully most platforms do). Pinning the test to a subset of cpus with taskset will also restrict the hwprobe calls to that set. Signed-off-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Xiao Wang <xiao.w.wang@intel.com> Link: https://lore.kernel.org/r/20230918131518.56803-14-ajones@ventanamicro.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>	2023-09-21 04:22:28 -07:00