diff options
| author | Rob Clark <robin.clark@oss.qualcomm.com> | 2025-06-29 05:54:49 +0300 |
|---|---|---|
| committer | Rob Clark <robin.clark@oss.qualcomm.com> | 2025-06-29 05:54:49 +0300 |
| commit | 74f1af95820fc2ee580a775a3a17c416db30b38c (patch) | |
| tree | 7c82cffe3c1d99b99053d28b57a4ac5d81f85844 /drivers/perf/arm-ni.c | |
| parent | d3deabe4c619875714b9a844b1a3d9752dbae1dd (diff) | |
| parent | f41830c57bb8e70e283b9db251c95f1270a8279d (diff) | |
| download | linux-74f1af95820fc2ee580a775a3a17c416db30b38c.tar.xz | |
Merge remote-tracking branch 'drm/drm-next' into msm-next
Back-merge drm-next to (indirectly) get arm-smmu updates for making
stall-on-fault more reliable.
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Diffstat (limited to 'drivers/perf/arm-ni.c')
| -rw-r--r-- | drivers/perf/arm-ni.c | 40 |
1 files changed, 22 insertions, 18 deletions
diff --git a/drivers/perf/arm-ni.c b/drivers/perf/arm-ni.c index fd7a5e60e963..de7b6cce4d68 100644 --- a/drivers/perf/arm-ni.c +++ b/drivers/perf/arm-ni.c @@ -575,6 +575,23 @@ static int arm_ni_init_cd(struct arm_ni *ni, struct arm_ni_node *node, u64 res_s return err; } +static void arm_ni_remove(struct platform_device *pdev) +{ + struct arm_ni *ni = platform_get_drvdata(pdev); + + for (int i = 0; i < ni->num_cds; i++) { + struct arm_ni_cd *cd = ni->cds + i; + + if (!cd->pmu_base) + continue; + + writel_relaxed(0, cd->pmu_base + NI_PMCR); + writel_relaxed(U32_MAX, cd->pmu_base + NI_PMINTENCLR); + perf_pmu_unregister(&cd->pmu); + cpuhp_state_remove_instance_nocalls(arm_ni_hp_state, &cd->cpuhp_node); + } +} + static void arm_ni_probe_domain(void __iomem *base, struct arm_ni_node *node) { u32 reg = readl_relaxed(base + NI_NODE_TYPE); @@ -643,6 +660,7 @@ static int arm_ni_probe(struct platform_device *pdev) ni->num_cds = num_cds; ni->part = part; ni->id = atomic_fetch_inc(&id); + platform_set_drvdata(pdev, ni); for (int v = 0; v < cfg.num_components; v++) { reg = readl_relaxed(cfg.base + NI_CHILD_PTR(v)); @@ -656,8 +674,11 @@ static int arm_ni_probe(struct platform_device *pdev) reg = readl_relaxed(pd.base + NI_CHILD_PTR(c)); arm_ni_probe_domain(base + reg, &cd); ret = arm_ni_init_cd(ni, &cd, res->start); - if (ret) + if (ret) { + ni->cds[cd.id].pmu_base = NULL; + arm_ni_remove(pdev); return ret; + } } } } @@ -665,23 +686,6 @@ static int arm_ni_probe(struct platform_device *pdev) return 0; } -static void arm_ni_remove(struct platform_device *pdev) -{ - struct arm_ni *ni = platform_get_drvdata(pdev); - - for (int i = 0; i < ni->num_cds; i++) { - struct arm_ni_cd *cd = ni->cds + i; - - if (!cd->pmu_base) - continue; - - writel_relaxed(0, cd->pmu_base + NI_PMCR); - writel_relaxed(U32_MAX, cd->pmu_base + NI_PMINTENCLR); - perf_pmu_unregister(&cd->pmu); - cpuhp_state_remove_instance_nocalls(arm_ni_hp_state, &cd->cpuhp_node); - } -} - #ifdef CONFIG_OF static const struct of_device_id arm_ni_of_match[] = { { .compatible = "arm,ni-700" }, |