Author: johalun
Date: Fri May 10 23:10:22 2019
New Revision: 347470
URL: https://svnweb.freebsd.org/changeset/base/347470
Log:
Implement linux_pci_unregister_drm_driver in linuxkpi so that drm drivers
can be unloaded.
This patch is a part of D19565.
Reviewed by: hps
Approved by: imp (mentor), hps
MFC after: 1 week
Modified:
head/sys/compat/linuxkpi/common/include/linux/pci.h
head/sys/compat/linuxkpi/common/src/linux_pci.c
Modified: head/sys/compat/linuxkpi/common/include/linux/pci.h
==============================================================================
--- head/sys/compat/linuxkpi/common/include/linux/pci.h Fri May 10 22:49:01
2019 (r347469)
+++ head/sys/compat/linuxkpi/common/include/linux/pci.h Fri May 10 23:10:22
2019 (r347470)
@@ -532,6 +532,7 @@ pci_write_config_dword(struct pci_dev *pdev, int where
int linux_pci_register_driver(struct pci_driver *pdrv);
int linux_pci_register_drm_driver(struct pci_driver *pdrv);
void linux_pci_unregister_driver(struct pci_driver *pdrv);
+void linux_pci_unregister_drm_driver(struct pci_driver *pdrv);
#define pci_register_driver(pdrv) linux_pci_register_driver(pdrv)
#define pci_unregister_driver(pdrv)
linux_pci_unregister_driver(pdrv)
Modified: head/sys/compat/linuxkpi/common/src/linux_pci.c
==============================================================================
--- head/sys/compat/linuxkpi/common/src/linux_pci.c Fri May 10 22:49:01
2019 (r347469)
+++ head/sys/compat/linuxkpi/common/src/linux_pci.c Fri May 10 23:10:22
2019 (r347470)
@@ -417,6 +417,22 @@ linux_pci_unregister_driver(struct pci_driver *pdrv)
mtx_unlock(&Giant);
}
+void
+linux_pci_unregister_drm_driver(struct pci_driver *pdrv)
+{
+ devclass_t bus;
+
+ bus = devclass_find("vgapci");
+
+ spin_lock(&pci_lock);
+ list_del(&pdrv->links);
+ spin_unlock(&pci_lock);
+ mtx_lock(&Giant);
+ if (bus != NULL)
+ devclass_delete_driver(bus, &pdrv->bsddriver);
+ mtx_unlock(&Giant);
+}
+
CTASSERT(sizeof(dma_addr_t) <= sizeof(uint64_t));
struct linux_dma_obj {
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