d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

hwpmc_arm64: remove write only variables and the computations they do

Browse Source 
Sponsored by:		Netflix
This commit is contained in:
Warner Losh 2022-04-05 19:59:18 -06:00
parent 20669405d2
commit 1545c66789
2 changed files with 0 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
sys/dev/hwpmc/hwpmc_arm64.c
View File

@ -165,7 +165,6 @@ arm64_allocate_pmc(int cpu, int ri, struct pmc *pm,
const struct pmc_op_pmcallocate *a)
{
uint32_t config;
struct arm64_cpu *pac;
enum pmc_event pe;
KASSERT(cpu >= 0 && cpu < pmc_cpu_max(),
@ -173,8 +172,6 @@ arm64_allocate_pmc(int cpu, int ri, struct pmc *pm,
KASSERT(ri >= 0 && ri < arm64_npmcs,
("[arm64,%d] illegal row index %d", __LINE__, ri));
pac = arm64_pcpu[cpu];
if (a->pm_class != PMC_CLASS_ARMV8) {
return (EINVAL);
}
@ -337,12 +334,6 @@ arm64_start_pmc(int cpu, int ri)
static int
arm64_stop_pmc(int cpu, int ri)
{
struct pmc_hw *phw;
struct pmc *pm;
phw = &arm64_pcpu[cpu]->pc_arm64pmcs[ri];
pm = phw->phw_pmc;
/*
* Disable the PMCs.
*/
@ -372,7 +363,6 @@ arm64_release_pmc(int cpu, int ri, struct pmc *pmc)
static int
arm64_intr(struct trapframe *tf)
{
struct arm64_cpu *pc;
int retval, ri;
struct pmc *pm;
int error;
@ -386,7 +376,6 @@ arm64_intr(struct trapframe *tf)
TRAPF_USERMODE(tf));
retval = 0;
pc = arm64_pcpu[cpu];
for (ri = 0; ri < arm64_npmcs; ri++) {
pm = arm64_pcpu[cpu]->pc_arm64pmcs[ri].phw_pmc;

2
sys/dev/hwpmc/hwpmc_arm64_md.c
View File

@ -112,13 +112,11 @@ pmc_save_user_callchain(uintptr_t *cc, int maxsamples,
struct trapframe *tf)
{
uintptr_t pc, r, oldfp, fp;
struct thread *td;
int count;
KASSERT(TRAPF_USERMODE(tf), ("[arm64,%d] Not a user trap frame tf=%p",
__LINE__, (void *) tf));
td = curthread;
pc = PMC_TRAPFRAME_TO_PC(tf);
*cc++ = pc;