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authorLinus Torvalds <torvalds@linux-foundation.org>2022-08-06 16:38:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-08-06 16:38:17 -0700
commitcae4199f9319f42534ee2e2e4aadf183b9bb7f73 (patch)
treeb0028cbba73deaaf842fcb72e7c0dc0a0e0a9923 /arch/powerpc/kernel/pci_32.c
parent4d1044fcb996e8de9b9ab392f4a767890e45202d (diff)
parent4cfa6ff24a9744ba484521c38bea613134fbfcb3 (diff)
Merge tag 'powerpc-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman: - Add support for syscall stack randomization - Add support for atomic operations to the 32 & 64-bit BPF JIT - Full support for KASAN on 64-bit Book3E - Add a watchdog driver for the new PowerVM hypervisor watchdog - Add a number of new selftests for the Power10 PMU support - Add a driver for the PowerVM Platform KeyStore - Increase the NMI watchdog timeout during live partition migration, to avoid timeouts due to increased memory access latency - Add support for using the 'linux,pci-domain' device tree property for PCI domain assignment - Many other small features and fixes Thanks to Alexey Kardashevskiy, Andy Shevchenko, Arnd Bergmann, Athira Rajeev, Bagas Sanjaya, Christophe Leroy, Erhard Furtner, Fabiano Rosas, Greg Kroah-Hartman, Greg Kurz, Haowen Bai, Hari Bathini, Jason A. Donenfeld, Jason Wang, Jiang Jian, Joel Stanley, Juerg Haefliger, Kajol Jain, Kees Cook, Laurent Dufour, Madhavan Srinivasan, Masahiro Yamada, Maxime Bizon, Miaoqian Lin, Murilo Opsfelder Araújo, Nathan Lynch, Naveen N. Rao, Nayna Jain, Nicholas Piggin, Ning Qiang, Pali Rohár, Petr Mladek, Rashmica Gupta, Sachin Sant, Scott Cheloha, Segher Boessenkool, Stephen Rothwell, Uwe Kleine-König, Wolfram Sang, Xiu Jianfeng, and Zhouyi Zhou. * tag 'powerpc-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (191 commits) powerpc/64e: Fix kexec build error EDAC/ppc_4xx: Include required of_irq header directly powerpc/pci: Fix PHB numbering when using opal-phbid powerpc/64: Init jump labels before parse_early_param() selftests/powerpc: Avoid GCC 12 uninitialised variable warning powerpc/cell/axon_msi: Fix refcount leak in setup_msi_msg_address powerpc/xive: Fix refcount leak in xive_get_max_prio powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader powerpc/perf: Include caps feature for power10 DD1 version powerpc: add support for syscall stack randomization powerpc: Move system_call_exception() to syscall.c powerpc/powernv: rename remaining rng powernv_ functions to pnv_ powerpc/powernv/kvm: Use darn for H_RANDOM on Power9 powerpc/powernv: Avoid crashing if rng is NULL selftests/powerpc: Fix matrix multiply assist test powerpc/signal: Update comment for clarity powerpc: make facility_unavailable_exception 64s powerpc/platforms/83xx/suspend: Remove write-only global variable powerpc/platforms/83xx/suspend: Prevent unloading the driver powerpc/platforms/83xx/suspend: Reorder to get rid of a forward declaration ...
Diffstat (limited to 'arch/powerpc/kernel/pci_32.c')
-rw-r--r--arch/powerpc/kernel/pci_32.c27
1 files changed, 21 insertions, 6 deletions
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 5a174936c9a0..433965bf37b4 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -36,18 +36,13 @@ int pcibios_assign_bus_offset = 1;
EXPORT_SYMBOL(isa_io_base);
EXPORT_SYMBOL(pci_dram_offset);
-void __init pcibios_make_OF_bus_map(void);
-
static void fixup_cpc710_pci64(struct pci_dev* dev);
-static u8* pci_to_OF_bus_map;
/* By default, we don't re-assign bus numbers. We do this only on
* some pmacs
*/
static int pci_assign_all_buses;
-static int pci_bus_count;
-
/* This will remain NULL for now, until isa-bridge.c is made common
* to both 32-bit and 64-bit.
*/
@@ -67,6 +62,11 @@ fixup_cpc710_pci64(struct pci_dev* dev)
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CPC710_PCI64, fixup_cpc710_pci64);
+#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_CHRP)
+
+static u8* pci_to_OF_bus_map;
+static int pci_bus_count;
+
/*
* Functions below are used on OpenFirmware machines.
*/
@@ -108,7 +108,7 @@ make_one_node_map(struct device_node* node, u8 pci_bus)
}
}
-void __init
+static void __init
pcibios_make_OF_bus_map(void)
{
int i;
@@ -154,6 +154,7 @@ pcibios_make_OF_bus_map(void)
}
+#ifdef CONFIG_PPC_PMAC
/*
* Returns the PCI device matching a given OF node
*/
@@ -193,7 +194,9 @@ int pci_device_from_OF_node(struct device_node *node, u8 *bus, u8 *devfn)
return -ENODEV;
}
EXPORT_SYMBOL(pci_device_from_OF_node);
+#endif
+#ifdef CONFIG_PPC_CHRP
/* We create the "pci-OF-bus-map" property now so it appears in the
* /proc device tree
*/
@@ -218,6 +221,9 @@ pci_create_OF_bus_map(void)
of_node_put(dn);
}
}
+#endif
+
+#endif /* defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_CHRP) */
void pcibios_setup_phb_io_space(struct pci_controller *hose)
{
@@ -233,7 +239,9 @@ void pcibios_setup_phb_io_space(struct pci_controller *hose)
static int __init pcibios_init(void)
{
struct pci_controller *hose, *tmp;
+#ifndef CONFIG_PPC_PCI_BUS_NUM_DOMAIN_DEPENDENT
int next_busno = 0;
+#endif
printk(KERN_INFO "PCI: Probing PCI hardware\n");
@@ -242,14 +250,20 @@ static int __init pcibios_init(void)
/* Scan all of the recorded PCI controllers. */
list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
+#ifndef CONFIG_PPC_PCI_BUS_NUM_DOMAIN_DEPENDENT
if (pci_assign_all_buses)
hose->first_busno = next_busno;
+#endif
hose->last_busno = 0xff;
pcibios_scan_phb(hose);
pci_bus_add_devices(hose->bus);
+#ifndef CONFIG_PPC_PCI_BUS_NUM_DOMAIN_DEPENDENT
if (pci_assign_all_buses || next_busno <= hose->last_busno)
next_busno = hose->last_busno + pcibios_assign_bus_offset;
+#endif
}
+
+#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_CHRP)
pci_bus_count = next_busno;
/* OpenFirmware based machines need a map of OF bus
@@ -258,6 +272,7 @@ static int __init pcibios_init(void)
*/
if (pci_assign_all_buses)
pcibios_make_OF_bus_map();
+#endif
/* Call common code to handle resource allocation */
pcibios_resource_survey();