diff options
| author | Bjoern A. Zeeb <bz@FreeBSD.org> | 2022-03-04 00:06:34 +0000 |
|---|---|---|
| committer | Bjoern A. Zeeb <bz@FreeBSD.org> | 2022-03-30 15:46:17 +0000 |
| commit | 7380d82b53d664c4bc1ff9eb853ee26787cb3b89 (patch) | |
| tree | 79622ac42bc8124409c27ffc535323105844e521 | |
| parent | 3b4a991fa67ffd05d4a8865bf8e696f77543981d (diff) | |
LinuxKPI: pci.h MODULE_DEVICE_TABLE to MODULE_PNP_INFO
Implement MODULE_PNP_INFO() support in LinuxKPI for the Linux
MODULE_DEVICE_TABLE.
This will allow us to auto-load LinuxKPI PCI drivers (drm-kmod do
not currently as they attach to vgapci0 which in turn grabs the PCI
to my understanding) and make any loading from loader or kld_list in
rc.conf unnecessary; see devmatch(8) for more information.
We need to ensure there is a DRIVER_MODULE() (or probably just
a DECLARE_MODULE but that makes not much difference) before the
MODULE_PNP_INFO (which we otherwise would not need).
Approved by: re (gjb)
Sponsored by: The FreeBSD Foundation
Reviewed by: imp, hselasky, manu
Differential Revision: https://reviews.freebsd.org/D26651
(cherry picked from commit 5493c6277a264e91ea4bdc7e2d4ee69fe4210918)
(cherry picked from commit a94b233d5d718258e2e57e114aab00714441a79f)
| -rw-r--r-- | sys/compat/linuxkpi/common/include/linux/pci.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/pci.h b/sys/compat/linuxkpi/common/include/linux/pci.h index df18c98a6278..361600a55397 100644 --- a/sys/compat/linuxkpi/common/include/linux/pci.h +++ b/sys/compat/linuxkpi/common/include/linux/pci.h @@ -41,6 +41,7 @@ #include <sys/param.h> #include <sys/bus.h> +#include <sys/module.h> #include <sys/nv.h> #include <sys/pciio.h> #include <sys/rman.h> @@ -69,7 +70,26 @@ struct pci_device_id { uintptr_t driver_data; }; -#define MODULE_DEVICE_TABLE(bus, table) +/* Linux has an empty element at the end of the ID table -> nitems() - 1. */ +#define MODULE_DEVICE_TABLE(_bus, _table) \ + \ +static device_method_t _ ## _bus ## _ ## _table ## _methods[] = { \ + DEVMETHOD_END \ +}; \ + \ +static driver_t _ ## _bus ## _ ## _table ## _driver = { \ + "lkpi_" #_bus #_table, \ + _ ## _bus ## _ ## _table ## _methods, \ + 0 \ +}; \ + \ +static devclass_t _ ## _bus ## _ ## _table ## _devclass; \ + \ +DRIVER_MODULE(lkpi_ ## _table, pci, _ ## _bus ## _ ## _table ## _driver,\ + _ ## _bus ## _ ## _table ## _devclass, 0, 0); \ + \ +MODULE_PNP_INFO("U32:vendor;U32:device;V32:subvendor;V32:subdevice", \ + _bus, lkpi_ ## _table, _table, nitems(_table) - 1) #define PCI_ANY_ID -1U |