Commit d0f585dd authored by Robert Richter's avatar Robert Richter

x86/oprofile: Moving nmi_cpu_save/restore_mpx_registers() in nmi_int.c

This patch moves some code in nmi_int.c to get a single separate
multiplexing code section.
Signed-off-by: default avatarRobert Richter <robert.richter@amd.com>
parent 48fb4b46
...@@ -147,6 +147,30 @@ static void nmi_cpu_setup_mux(int cpu, struct op_msrs const * const msrs) ...@@ -147,6 +147,30 @@ static void nmi_cpu_setup_mux(int cpu, struct op_msrs const * const msrs)
per_cpu(switch_index, cpu) = 0; per_cpu(switch_index, cpu) = 0;
} }
static void nmi_cpu_save_mpx_registers(struct op_msrs *msrs)
{
struct op_msr *multiplex = msrs->multiplex;
int i;
for (i = 0; i < model->num_counters; ++i) {
int virt = op_x86_phys_to_virt(i);
if (multiplex[virt].addr)
rdmsrl(multiplex[virt].addr, multiplex[virt].saved);
}
}
static void nmi_cpu_restore_mpx_registers(struct op_msrs *msrs)
{
struct op_msr *multiplex = msrs->multiplex;
int i;
for (i = 0; i < model->num_counters; ++i) {
int virt = op_x86_phys_to_virt(i);
if (multiplex[virt].addr)
wrmsrl(multiplex[virt].addr, multiplex[virt].saved);
}
}
#else #else
inline int op_x86_phys_to_virt(int phys) { return phys; } inline int op_x86_phys_to_virt(int phys) { return phys; }
...@@ -252,34 +276,6 @@ static int nmi_setup(void) ...@@ -252,34 +276,6 @@ static int nmi_setup(void)
return 0; return 0;
} }
#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
static void nmi_cpu_save_mpx_registers(struct op_msrs *msrs)
{
struct op_msr *multiplex = msrs->multiplex;
int i;
for (i = 0; i < model->num_counters; ++i) {
int virt = op_x86_phys_to_virt(i);
if (multiplex[virt].addr)
rdmsrl(multiplex[virt].addr, multiplex[virt].saved);
}
}
static void nmi_cpu_restore_mpx_registers(struct op_msrs *msrs)
{
struct op_msr *multiplex = msrs->multiplex;
int i;
for (i = 0; i < model->num_counters; ++i) {
int virt = op_x86_phys_to_virt(i);
if (multiplex[virt].addr)
wrmsrl(multiplex[virt].addr, multiplex[virt].saved);
}
}
#endif
static void nmi_cpu_restore_registers(struct op_msrs *msrs) static void nmi_cpu_restore_registers(struct op_msrs *msrs)
{ {
struct op_msr *counters = msrs->counters; struct op_msr *counters = msrs->counters;
......
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