Allow pci_host_generic attachments to manage registers
To allow for attachments that don't use memory mapped registers add a flag they can set when the base driver shouldn't map them. Sponsored by: Arm Ltd Differential Revision: https://reviews.freebsd.org/D39227
This commit is contained in:
parent
fb421e96c0
commit
7029f2c887
@ -106,6 +106,7 @@ pci_host_generic_core_attach(device_t dev)
|
||||
if (error != 0)
|
||||
return (error);
|
||||
|
||||
if ((sc->quirks & PCIE_CUSTOM_CONFIG_SPACE_QUIRK) == 0) {
|
||||
rid = 0;
|
||||
sc->res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
|
||||
PCI_RF_FLAGS | RF_ACTIVE);
|
||||
@ -117,7 +118,8 @@ pci_host_generic_core_attach(device_t dev)
|
||||
#ifdef PCI_UNMAPPED
|
||||
resource_init_map_request(&req);
|
||||
req.memattr = VM_MEMATTR_DEVICE_NP;
|
||||
error = bus_map_resource(dev, SYS_RES_MEMORY, sc->res, &req, &map);
|
||||
error = bus_map_resource(dev, SYS_RES_MEMORY, sc->res, &req,
|
||||
&map);
|
||||
if (error != 0) {
|
||||
device_printf(dev, "could not map memory.\n");
|
||||
return (error);
|
||||
@ -127,6 +129,7 @@ pci_host_generic_core_attach(device_t dev)
|
||||
|
||||
sc->bst = rman_get_bustag(sc->res);
|
||||
sc->bsh = rman_get_bushandle(sc->res);
|
||||
}
|
||||
|
||||
sc->has_pmem = false;
|
||||
sc->pmem_rman.rm_type = RMAN_ARRAY;
|
||||
@ -196,6 +199,7 @@ pci_host_generic_core_attach(device_t dev)
|
||||
err_mem_rman:
|
||||
rman_fini(&sc->pmem_rman);
|
||||
err_pmem_rman:
|
||||
if (sc->res != NULL)
|
||||
bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->res);
|
||||
err_resource:
|
||||
bus_dma_tag_destroy(sc->dmat);
|
||||
@ -217,6 +221,7 @@ pci_host_generic_core_detach(device_t dev)
|
||||
rman_fini(&sc->io_rman);
|
||||
rman_fini(&sc->mem_rman);
|
||||
rman_fini(&sc->pmem_rman);
|
||||
if (sc->res != NULL)
|
||||
bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->res);
|
||||
bus_dma_tag_destroy(sc->dmat);
|
||||
|
||||
|
@ -90,6 +90,8 @@ struct generic_pcie_core_softc {
|
||||
|
||||
/* Quirks */
|
||||
#define PCIE_ECAM_DESIGNWARE_QUIRK (1 << 0)
|
||||
/* Child will map resources to access config registers */
|
||||
#define PCIE_CUSTOM_CONFIG_SPACE_QUIRK (1 << 1)
|
||||
|
||||
DECLARE_CLASS(generic_pcie_core_driver);
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user