From: Yishai Hadas <yishaih@nvidia.com>
To: <bhelgaas@google.com>, <corbet@lwn.net>,
<alex.williamson@redhat.com>, <diana.craciun@oss.nxp.com>,
<kwankhede@nvidia.com>, <eric.auger@redhat.com>,
<masahiroy@kernel.org>, <michal.lkml@markovi.net>
Cc: <linux-pci@vger.kernel.org>, <linux-doc@vger.kernel.org>,
<kvm@vger.kernel.org>, <linux-s390@vger.kernel.org>,
<linux-kbuild@vger.kernel.org>, <mgurtovoy@nvidia.com>,
<jgg@nvidia.com>, <yishaih@nvidia.com>, <maorg@nvidia.com>,
<leonro@nvidia.com>
Subject: [PATCH V3 07/13] vfio/pci: Move igd initialization to vfio_pci.c
Date: Sun, 22 Aug 2021 17:35:56 +0300 [thread overview]
Message-ID: <20210822143602.153816-8-yishaih@nvidia.com> (raw)
In-Reply-To: <20210822143602.153816-1-yishaih@nvidia.com>
From: Max Gurtovoy <mgurtovoy@nvidia.com>
igd is related to the vfio_pci pci_driver implementation, move it out of
vfio_pci_core.c.
This is preparation for splitting vfio_pci.ko into 2 drivers.
Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
---
drivers/vfio/pci/vfio_pci.c | 29 +++++++++++++++++++++++-
drivers/vfio/pci/vfio_pci_core.c | 39 ++++----------------------------
drivers/vfio/pci/vfio_pci_core.h | 9 +++++++-
3 files changed, 41 insertions(+), 36 deletions(-)
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index 15474ebadd98..121a7296ac63 100644
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -82,9 +82,36 @@ static bool vfio_pci_is_denylisted(struct pci_dev *pdev)
return true;
}
+static int vfio_pci_open_device(struct vfio_device *core_vdev)
+{
+ struct vfio_pci_core_device *vdev =
+ container_of(core_vdev, struct vfio_pci_core_device, vdev);
+ struct pci_dev *pdev = vdev->pdev;
+ int ret;
+
+ ret = vfio_pci_core_enable(vdev);
+ if (ret)
+ return ret;
+
+ if (vfio_pci_is_vga(pdev) &&
+ pdev->vendor == PCI_VENDOR_ID_INTEL &&
+ IS_ENABLED(CONFIG_VFIO_PCI_IGD)) {
+ ret = vfio_pci_igd_init(vdev);
+ if (ret && ret != -ENODEV) {
+ pci_warn(pdev, "Failed to setup Intel IGD regions\n");
+ vfio_pci_core_disable(vdev);
+ return ret;
+ }
+ }
+
+ vfio_pci_core_finish_enable(vdev);
+
+ return 0;
+}
+
static const struct vfio_device_ops vfio_pci_ops = {
.name = "vfio-pci",
- .open_device = vfio_pci_core_open_device,
+ .open_device = vfio_pci_open_device,
.close_device = vfio_pci_core_close_device,
.ioctl = vfio_pci_core_ioctl,
.read = vfio_pci_core_read,
diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c
index 87d1960d0d61..d4b3a53ee2ed 100644
--- a/drivers/vfio/pci/vfio_pci_core.c
+++ b/drivers/vfio/pci/vfio_pci_core.c
@@ -91,11 +91,6 @@ static unsigned int vfio_pci_set_vga_decode(void *opaque, bool single_vga)
return decodes;
}
-static inline bool vfio_pci_is_vga(struct pci_dev *pdev)
-{
- return (pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA;
-}
-
static void vfio_pci_probe_mmaps(struct vfio_pci_core_device *vdev)
{
struct resource *res;
@@ -166,7 +161,6 @@ static void vfio_pci_probe_mmaps(struct vfio_pci_core_device *vdev)
struct vfio_pci_group_info;
static bool vfio_pci_dev_set_try_reset(struct vfio_device_set *dev_set);
-static void vfio_pci_disable(struct vfio_pci_core_device *vdev);
static int vfio_pci_dev_set_hot_reset(struct vfio_device_set *dev_set,
struct vfio_pci_group_info *groups);
@@ -252,7 +246,7 @@ int vfio_pci_set_power_state(struct vfio_pci_core_device *vdev, pci_power_t stat
return ret;
}
-static int vfio_pci_enable(struct vfio_pci_core_device *vdev)
+int vfio_pci_core_enable(struct vfio_pci_core_device *vdev)
{
struct pci_dev *pdev = vdev->pdev;
int ret;
@@ -321,26 +315,11 @@ static int vfio_pci_enable(struct vfio_pci_core_device *vdev)
if (!vfio_vga_disabled() && vfio_pci_is_vga(pdev))
vdev->has_vga = true;
- if (vfio_pci_is_vga(pdev) &&
- pdev->vendor == PCI_VENDOR_ID_INTEL &&
- IS_ENABLED(CONFIG_VFIO_PCI_IGD)) {
- ret = vfio_pci_igd_init(vdev);
- if (ret && ret != -ENODEV) {
- pci_warn(pdev, "Failed to setup Intel IGD regions\n");
- goto disable_exit;
- }
- }
-
- vfio_pci_probe_mmaps(vdev);
return 0;
-
-disable_exit:
- vfio_pci_disable(vdev);
- return ret;
}
-static void vfio_pci_disable(struct vfio_pci_core_device *vdev)
+void vfio_pci_core_disable(struct vfio_pci_core_device *vdev)
{
struct pci_dev *pdev = vdev->pdev;
struct vfio_pci_dummy_resource *dummy_res, *tmp;
@@ -479,7 +458,7 @@ void vfio_pci_core_close_device(struct vfio_device *core_vdev)
vfio_pci_vf_token_user_add(vdev, -1);
vfio_spapr_pci_eeh_release(vdev->pdev);
- vfio_pci_disable(vdev);
+ vfio_pci_core_disable(vdev);
mutex_lock(&vdev->igate);
if (vdev->err_trigger) {
@@ -493,19 +472,11 @@ void vfio_pci_core_close_device(struct vfio_device *core_vdev)
mutex_unlock(&vdev->igate);
}
-int vfio_pci_core_open_device(struct vfio_device *core_vdev)
+void vfio_pci_core_finish_enable(struct vfio_pci_core_device *vdev)
{
- struct vfio_pci_core_device *vdev =
- container_of(core_vdev, struct vfio_pci_core_device, vdev);
- int ret = 0;
-
- ret = vfio_pci_enable(vdev);
- if (ret)
- return ret;
-
+ vfio_pci_probe_mmaps(vdev);
vfio_spapr_pci_eeh_open(vdev->pdev);
vfio_pci_vf_token_user_add(vdev, 1);
- return 0;
}
static int vfio_pci_get_irq_count(struct vfio_pci_core_device *vdev, int irq_type)
diff --git a/drivers/vfio/pci/vfio_pci_core.h b/drivers/vfio/pci/vfio_pci_core.h
index 7dbdd4dda5c0..ffaf544f35db 100644
--- a/drivers/vfio/pci/vfio_pci_core.h
+++ b/drivers/vfio/pci/vfio_pci_core.h
@@ -210,7 +210,6 @@ static inline int vfio_pci_info_zdev_add_caps(struct vfio_pci_core_device *vdev,
void vfio_pci_core_cleanup(void);
int vfio_pci_core_init(void);
void vfio_pci_core_close_device(struct vfio_device *core_vdev);
-int vfio_pci_core_open_device(struct vfio_device *core_vdev);
void vfio_pci_core_init_device(struct vfio_pci_core_device *vdev,
struct pci_dev *pdev,
const struct vfio_device_ops *vfio_pci_ops);
@@ -228,5 +227,13 @@ ssize_t vfio_pci_core_write(struct vfio_device *core_vdev, const char __user *bu
int vfio_pci_core_mmap(struct vfio_device *core_vdev, struct vm_area_struct *vma);
void vfio_pci_core_request(struct vfio_device *core_vdev, unsigned int count);
int vfio_pci_core_match(struct vfio_device *core_vdev, char *buf);
+int vfio_pci_core_enable(struct vfio_pci_core_device *vdev);
+void vfio_pci_core_disable(struct vfio_pci_core_device *vdev);
+void vfio_pci_core_finish_enable(struct vfio_pci_core_device *vdev);
+
+static inline bool vfio_pci_is_vga(struct pci_dev *pdev)
+{
+ return (pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA;
+}
#endif /* VFIO_PCI_CORE_H */
--
2.18.1
next prev parent reply other threads:[~2021-08-22 14:37 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-22 14:35 [PATCH V3 00/13] Introduce vfio_pci_core subsystem Yishai Hadas
2021-08-22 14:35 ` [PATCH V3 01/13] vfio/pci: Rename vfio_pci.c to vfio_pci_core.c Yishai Hadas
2021-08-22 14:35 ` [PATCH V3 02/13] vfio/pci: Rename vfio_pci_private.h to vfio_pci_core.h Yishai Hadas
2021-08-22 14:35 ` [PATCH V3 03/13] vfio/pci: Rename vfio_pci_device to vfio_pci_core_device Yishai Hadas
2021-08-22 14:35 ` [PATCH V3 04/13] vfio/pci: Rename ops functions to fit core namings Yishai Hadas
2021-08-22 14:35 ` [PATCH V3 05/13] vfio/pci: Include vfio header in vfio_pci_core.h Yishai Hadas
2021-08-22 14:35 ` [PATCH V3 06/13] vfio/pci: Split the pci_driver code out of vfio_pci_core.c Yishai Hadas
2021-08-23 15:16 ` Alex Williamson
2021-08-23 15:28 ` Max Gurtovoy
2021-08-24 21:48 ` Alex Williamson
2021-08-24 22:48 ` Jason Gunthorpe
2021-08-22 14:35 ` Yishai Hadas [this message]
2021-08-22 14:35 ` [PATCH V3 08/13] vfio/pci: Move module parameters to vfio_pci.c Yishai Hadas
2021-08-22 14:35 ` [PATCH V3 09/13] PCI: Add 'override_only' field to struct pci_device_id Yishai Hadas
2021-08-22 14:35 ` [PATCH V3 10/13] PCI / VFIO: Add 'override_only' support for VFIO PCI sub system Yishai Hadas
2021-08-24 13:17 ` Max Gurtovoy
2021-08-22 14:36 ` [PATCH V3 11/13] vfio: Use select for eventfd Yishai Hadas
2021-08-22 14:36 ` [PATCH V3 12/13] vfio: Use kconfig if XX/endif blocks instead of repeating 'depends on' Yishai Hadas
2021-08-22 14:36 ` [PATCH V3 13/13] vfio/pci: Introduce vfio_pci_core.ko Yishai Hadas
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