From: Karol Herbst <kherbst@redhat.com>
To: nouveau@lists.freedesktop.org
Cc: Lyude Paul <lyude@redhat.com>,
linux-pci@vger.kernel.org, Bjorn Helgaas <helgaas@kernel.org>,
Karol Herbst <kherbst@redhat.com>
Subject: [PATCH v2 3/4] pci: add nvkm_pcie_get_speed
Date: Tue, 7 May 2019 22:12:44 +0200 [thread overview]
Message-ID: <20190507201245.9295-4-kherbst@redhat.com> (raw)
In-Reply-To: <20190507201245.9295-1-kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
---
drm/nouveau/include/nvkm/subdev/pci.h | 1 +
drm/nouveau/nvkm/subdev/pci/pcie.c | 8 ++++++++
2 files changed, 9 insertions(+)
diff --git a/drm/nouveau/include/nvkm/subdev/pci.h b/drm/nouveau/include/nvkm/subdev/pci.h
index 23803cc8..1fdf3098 100644
--- a/drm/nouveau/include/nvkm/subdev/pci.h
+++ b/drm/nouveau/include/nvkm/subdev/pci.h
@@ -53,4 +53,5 @@ int gp100_pci_new(struct nvkm_device *, int, struct nvkm_pci **);
/* pcie functions */
int nvkm_pcie_set_link(struct nvkm_pci *, enum nvkm_pcie_speed, u8 width);
+enum nvkm_pcie_speed nvkm_pcie_get_speed(struct nvkm_pci *);
#endif
diff --git a/drm/nouveau/nvkm/subdev/pci/pcie.c b/drm/nouveau/nvkm/subdev/pci/pcie.c
index d71e5db5..70ccbe0d 100644
--- a/drm/nouveau/nvkm/subdev/pci/pcie.c
+++ b/drm/nouveau/nvkm/subdev/pci/pcie.c
@@ -163,3 +163,11 @@ nvkm_pcie_set_link(struct nvkm_pci *pci, enum nvkm_pcie_speed speed, u8 width)
return ret;
}
+
+enum nvkm_pcie_speed
+nvkm_pcie_get_speed(struct nvkm_pci *pci)
+{
+ if (!pci || !pci_is_pcie(pci->pdev) || !pci->pcie.cur_speed)
+ return -ENODEV;
+ return pci->func->pcie.cur_speed(pci);
+}
--
2.21.0
next prev parent reply other threads:[~2019-05-07 20:12 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-07 20:12 [PATCH v2 0/4] Potential fix for runpm issues on various laptops Karol Herbst
2019-05-07 20:12 ` [PATCH v2 1/4] drm: don't set the pci power state if the pci subsystem handles the ACPI bits Karol Herbst
2019-05-08 19:10 ` Lyude Paul
2019-05-07 20:12 ` [PATCH v2 2/4] pci: enable pcie link changes for pascal Karol Herbst
2019-05-20 21:25 ` Bjorn Helgaas
2019-05-07 20:12 ` Karol Herbst [this message]
2019-05-07 20:12 ` [PATCH v2 4/4] pci: save the boot pcie link speed and restore it on fini Karol Herbst
2019-05-20 21:19 ` Bjorn Helgaas
2019-05-20 22:30 ` Karol Herbst
2019-05-21 13:10 ` Bjorn Helgaas
2019-05-21 13:28 ` Karol Herbst
2019-05-21 13:50 ` [Nouveau] " Ilia Mirkin
2019-05-21 13:56 ` Karol Herbst
2019-05-21 14:13 ` Bjorn Helgaas
2019-05-21 14:30 ` Karol Herbst
2019-05-21 17:35 ` Karol Herbst
2019-05-21 17:48 ` Karol Herbst
2019-06-03 13:18 ` Karol Herbst
2019-06-03 18:10 ` Bjorn Helgaas
2019-06-19 12:07 ` Karol Herbst
2019-06-19 12:12 ` Karol Herbst
2019-06-24 15:04 ` Karol Herbst
2019-05-20 13:23 ` [PATCH v2 0/4] Potential fix for runpm issues on various laptops Karol Herbst
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