Commit 3cb9d546 authored by Wei Wang's avatar Wei Wang Committed by Peter Zijlstra

perf/x86: Fix variable types for LBR registers

The MSR variable type can be 'unsigned int', which uses less memory than
the longer 'unsigned long'. Fix 'struct x86_pmu' for that. The lbr_nr won't
be a negative number, so make it 'unsigned int' as well.
Suggested-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: default avatarWei Wang <wei.w.wang@intel.com>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200613080958.132489-2-like.xu@linux.intel.com
parent 9ebcfadb
...@@ -673,8 +673,8 @@ struct x86_pmu { ...@@ -673,8 +673,8 @@ struct x86_pmu {
/* /*
* Intel LBR * Intel LBR
*/ */
unsigned long lbr_tos, lbr_from, lbr_to; /* MSR base regs */ unsigned int lbr_tos, lbr_from, lbr_to,
int lbr_nr; /* hardware stack size */ lbr_nr; /* LBR base regs and size */
u64 lbr_sel_mask; /* LBR_SELECT valid bits */ u64 lbr_sel_mask; /* LBR_SELECT valid bits */
const int *lbr_sel_map; /* lbr_select mappings */ const int *lbr_sel_map; /* lbr_select mappings */
bool lbr_double_abort; /* duplicated lbr aborts */ bool lbr_double_abort; /* duplicated lbr aborts */
......
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