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52448a0a73
Different with legacy PEBS, arch-PEBS provides per-counter PEBS data configuration by programing MSR IA32_PMC_GPx/FXx_CFG_C MSRs. This patch obtains PEBS data configuration from event attribute and then writes the PEBS data configuration to MSR IA32_PMC_GPx/FXx_CFG_C and enable corresponding PEBS groups. Please notice this patch only enables XMM SIMD regs sampling for arch-PEBS, the other SIMD regs (OPMASK/YMM/ZMM) sampling on arch-PEBS would be supported after PMI based SIMD regs (OPMASK/YMM/ZMM) sampling is supported. Co-developed-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://patch.msgid.link/20251029102136.61364-12-dapeng1.mi@linux.intel.com
47 lines
1.2 KiB
47 lines
1.2 KiB