diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-06 10:49:42 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-06 10:49:42 -0700 |
commit | 39eda2aba6be642b71f2e0ad623dcb09fd9d79cf (patch) | |
tree | cd0c8f547847641af73e38aab2478f3119dee490 /arch/powerpc/platforms/powernv/pci-ioda.c | |
parent | 2e515bf096c245ba87f20ab4b4ea20f911afaeda (diff) | |
parent | 9f24b0c9ef9b6b1292579c9e2cd7ff07ddc372b7 (diff) |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc updates from Ben Herrenschmidt:
"Here's the powerpc batch for this merge window. Some of the
highlights are:
- A bunch of endian fixes ! We don't have full LE support yet in that
release but this contains a lot of fixes all over arch/powerpc to
use the proper accessors, call the firmware with the right endian
mode, etc...
- A few updates to our "powernv" platform (non-virtualized, the one
to run KVM on), among other, support for bridging the P8 LPC bus
for UARTs, support and some EEH fixes.
- Some mpc51xx clock API cleanups in preparation for a clock API
overhaul
- A pile of cleanups of our old math emulation code, including better
support for using it to emulate optional FP instructions on
embedded chips that otherwise have a HW FPU.
- Some infrastructure in selftest, for powerpc now, but could be
generalized, initially used by some tests for our perf instruction
counting code.
- A pile of fixes for hotplug on pseries (that was seriously
bitrotting)
- The usual slew of freescale embedded updates, new boards, 64-bit
hiberation support, e6500 core PMU support, etc..."
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (146 commits)
powerpc: Correct FSCR bit definitions
powerpc/xmon: Fix printing of set of CPUs in xmon
powerpc/pseries: Move lparcfg.c to platforms/pseries
powerpc/powernv: Return secondary CPUs to firmware on kexec
powerpc/btext: Fix CONFIG_PPC_EARLY_DEBUG_BOOTX on ppc32
powerpc: Cleanup handling of the DSCR bit in the FSCR register
powerpc/pseries: Child nodes are not detached by dlpar_detach_node
powerpc/pseries: Add mising of_node_put in delete_dt_node
powerpc/pseries: Make dlpar_configure_connector parent node aware
powerpc/pseries: Do all node initialization in dlpar_parse_cc_node
powerpc/pseries: Fix parsing of initial node path in update_dt_node
powerpc/pseries: Pack update_props_workarea to map correctly to rtas buffer header
powerpc/pseries: Fix over writing of rtas return code in update_dt_node
powerpc/pseries: Fix creation of loop in device node property list
powerpc: Skip emulating & leave interrupts off for kernel program checks
powerpc: Add more exception trampolines for hypervisor exceptions
powerpc: Fix location and rename exception trampolines
powerpc: Add more trap names to xmon
powerpc/pseries: Add a warning in the case of cross-cpu VPA registration
powerpc: Update the 00-Index in Documentation/powerpc
...
Diffstat (limited to 'arch/powerpc/platforms/powernv/pci-ioda.c')
-rw-r--r-- | arch/powerpc/platforms/powernv/pci-ioda.c | 47 |
1 files changed, 29 insertions, 18 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index d8140b125e62..74a5a5773b1f 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -1104,16 +1104,16 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np, u64 hub_id, int ioda_type) { struct pci_controller *hose; - static int primary = 1; struct pnv_phb *phb; unsigned long size, m32map_off, iomap_off, pemap_off; const u64 *prop64; const u32 *prop32; + int len; u64 phb_id; void *aux; long rc; - pr_info(" Initializing IODA%d OPAL PHB %s\n", ioda_type, np->full_name); + pr_info("Initializing IODA%d OPAL PHB %s\n", ioda_type, np->full_name); prop64 = of_get_property(np, "ibm,opal-phbid", NULL); if (!prop64) { @@ -1124,20 +1124,31 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np, pr_debug(" PHB-ID : 0x%016llx\n", phb_id); phb = alloc_bootmem(sizeof(struct pnv_phb)); - if (phb) { - memset(phb, 0, sizeof(struct pnv_phb)); - phb->hose = hose = pcibios_alloc_controller(np); + if (!phb) { + pr_err(" Out of memory !\n"); + return; } - if (!phb || !phb->hose) { - pr_err("PCI: Failed to allocate PCI controller for %s\n", + + /* Allocate PCI controller */ + memset(phb, 0, sizeof(struct pnv_phb)); + phb->hose = hose = pcibios_alloc_controller(np); + if (!phb->hose) { + pr_err(" Can't allocate PCI controller for %s\n", np->full_name); + free_bootmem((unsigned long)phb, sizeof(struct pnv_phb)); return; } spin_lock_init(&phb->lock); - /* XXX Use device-tree */ - hose->first_busno = 0; - hose->last_busno = 0xff; + prop32 = of_get_property(np, "bus-range", &len); + if (prop32 && len == 8) { + hose->first_busno = prop32[0]; + hose->last_busno = prop32[1]; + } else { + pr_warn(" Broken <bus-range> on %s\n", np->full_name); + hose->first_busno = 0; + hose->last_busno = 0xff; + } hose->private_data = phb; phb->hub_id = hub_id; phb->opal_id = phb_id; @@ -1152,8 +1163,7 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np, phb->model = PNV_PHB_MODEL_UNKNOWN; /* Parse 32-bit and IO ranges (if any) */ - pci_process_bridge_OF_ranges(phb->hose, np, primary); - primary = 0; + pci_process_bridge_OF_ranges(hose, np, !hose->global_number); /* Get registers */ phb->regs = of_iomap(np, 0); @@ -1177,22 +1187,23 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np, phb->ioda.io_segsize = phb->ioda.io_size / phb->ioda.total_pe; phb->ioda.io_pci_base = 0; /* XXX calculate this ? */ - /* Allocate aux data & arrays - * - * XXX TODO: Don't allocate io segmap on PHB3 - */ + /* Allocate aux data & arrays. We don't have IO ports on PHB3 */ size = _ALIGN_UP(phb->ioda.total_pe / 8, sizeof(unsigned long)); m32map_off = size; size += phb->ioda.total_pe * sizeof(phb->ioda.m32_segmap[0]); iomap_off = size; - size += phb->ioda.total_pe * sizeof(phb->ioda.io_segmap[0]); + if (phb->type == PNV_PHB_IODA1) { + iomap_off = size; + size += phb->ioda.total_pe * sizeof(phb->ioda.io_segmap[0]); + } pemap_off = size; size += phb->ioda.total_pe * sizeof(struct pnv_ioda_pe); aux = alloc_bootmem(size); memset(aux, 0, size); phb->ioda.pe_alloc = aux; phb->ioda.m32_segmap = aux + m32map_off; - phb->ioda.io_segmap = aux + iomap_off; + if (phb->type == PNV_PHB_IODA1) + phb->ioda.io_segmap = aux + iomap_off; phb->ioda.pe_array = aux + pemap_off; set_bit(0, phb->ioda.pe_alloc); |