Date: Sat, 5 Oct 2024 07:11:31 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 5e70f9aa9eec - stable/14 - iommu: add per-unit sysctls reporting the state of DMA and interrupt remapping Message-ID: <202410050711.4957BVVH001749@gitrepo.freebsd.org>
next in thread | raw e-mail | index | archive | help
The branch stable/14 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=5e70f9aa9eecc1f7ad177575720281af8b8747d6 commit 5e70f9aa9eecc1f7ad177575720281af8b8747d6 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2024-09-27 01:17:57 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2024-10-05 07:08:56 +0000 iommu: add per-unit sysctls reporting the state of DMA and interrupt remapping (cherry picked from commit d50403a6919a641abfb0da4d60eb58ce42302de5) --- sys/arm64/iommu/iommu.c | 2 ++ sys/dev/iommu/busdma_iommu.c | 4 ++++ sys/dev/iommu/iommu.h | 1 + sys/x86/iommu/intel_drv.c | 2 ++ sys/x86/iommu/intel_intrmap.c | 5 ++++- 5 files changed, 13 insertions(+), 1 deletion(-) diff --git a/sys/arm64/iommu/iommu.c b/sys/arm64/iommu/iommu.c index d876d443ffa0..cdff7cdf4ae2 100644 --- a/sys/arm64/iommu/iommu.c +++ b/sys/arm64/iommu/iommu.c @@ -456,6 +456,7 @@ iommu_register(struct iommu_unit *iommu) LIST_INSERT_HEAD(&iommu_list, entry, next); IOMMU_LIST_UNLOCK(); + sysctl_ctx_init(&iommu->sysctl_ctx); iommu_init_busdma(iommu); return (0); @@ -476,6 +477,7 @@ iommu_unregister(struct iommu_unit *iommu) IOMMU_LIST_UNLOCK(); iommu_fini_busdma(iommu); + sysctl_ctx_free(&iommu->sysctl_ctx); mtx_destroy(&iommu->lock); diff --git a/sys/dev/iommu/busdma_iommu.c b/sys/dev/iommu/busdma_iommu.c index 0d86ff0d4468..f3b58306d6af 100644 --- a/sys/dev/iommu/busdma_iommu.c +++ b/sys/dev/iommu/busdma_iommu.c @@ -974,6 +974,10 @@ iommu_init_busdma(struct iommu_unit *unit) error = TUNABLE_INT_FETCH("hw.iommu.dma", &unit->dma_enabled); if (error == 0) /* compatibility */ TUNABLE_INT_FETCH("hw.dmar.dma", &unit->dma_enabled); + SYSCTL_ADD_INT(&unit->sysctl_ctx, + SYSCTL_CHILDREN(device_get_sysctl_tree(unit->dev)), + OID_AUTO, "dma", CTLFLAG_RD, &unit->dma_enabled, 0, + "DMA ops enabled"); TAILQ_INIT(&unit->delayed_maps); TASK_INIT(&unit->dmamap_load_task, 0, iommu_bus_task_dmamap, unit); unit->delayed_taskqueue = taskqueue_create("iommu", M_WAITOK, diff --git a/sys/dev/iommu/iommu.h b/sys/dev/iommu/iommu.h index 9845b09e8732..957d4e14e8e2 100644 --- a/sys/dev/iommu/iommu.h +++ b/sys/dev/iommu/iommu.h @@ -67,6 +67,7 @@ struct iommu_unit { struct mtx lock; device_t dev; int unit; + struct sysctl_ctx_list sysctl_ctx; int dma_enabled; diff --git a/sys/x86/iommu/intel_drv.c b/sys/x86/iommu/intel_drv.c index 05fb49538add..cc16759ebe34 100644 --- a/sys/x86/iommu/intel_drv.c +++ b/sys/x86/iommu/intel_drv.c @@ -256,6 +256,7 @@ dmar_release_resources(device_t dev, struct dmar_unit *unit) vm_object_deallocate(unit->ctx_obj); unit->ctx_obj = NULL; } + sysctl_ctx_free(&unit->iommu.sysctl_ctx); } #ifdef DEV_APIC @@ -337,6 +338,7 @@ dmar_attach(device_t dev) unit = device_get_softc(dev); unit->iommu.unit = device_get_unit(dev); unit->iommu.dev = dev; + sysctl_ctx_init(&unit->iommu.sysctl_ctx); dmaru = dmar_find_by_index(unit->iommu.unit); if (dmaru == NULL) return (EINVAL); diff --git a/sys/x86/iommu/intel_intrmap.c b/sys/x86/iommu/intel_intrmap.c index d2f8f8df4691..122b92827b77 100644 --- a/sys/x86/iommu/intel_intrmap.c +++ b/sys/x86/iommu/intel_intrmap.c @@ -326,7 +326,10 @@ clp2(u_int v) int dmar_init_irt(struct dmar_unit *unit) { - + SYSCTL_ADD_INT(&unit->iommu.sysctl_ctx, + SYSCTL_CHILDREN(device_get_sysctl_tree(unit->iommu.dev)), + OID_AUTO, "ir", CTLFLAG_RD, &unit->ir_enabled, 0, + "Interrupt remapping ops enabled"); if ((unit->hw_ecap & DMAR_ECAP_IR) == 0) return (0); unit->ir_enabled = 1;
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?202410050711.4957BVVH001749>