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authorLinus Torvalds <[email protected]>2024-11-23 10:44:31 -0800
committerLinus Torvalds <[email protected]>2024-11-23 10:44:31 -0800
commit42d9e8b7ccddee75989283cf7477305cfe3776ff (patch)
treeb7f8cf87bcc6755cc829d0ca90e8ec90bb58ab16 /arch/powerpc/platforms/maple/setup.c
parent5c00ff742bf5caf85f60e1c73999f99376fb865d (diff)
parent3c592ce7991cdf03bc7d139d790ce58c82c5903b (diff)
Merge tag 'powerpc-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman: - Rework kfence support for the HPT MMU to work on systems with >= 16TB of RAM. - Remove the powerpc "maple" platform, used by the "Yellow Dog Powerstation". - Add support for DYNAMIC_FTRACE_WITH_CALL_OPS, DYNAMIC_FTRACE_WITH_DIRECT_CALLS & BPF Trampolines. - Add support for running KVM nested guests on Power11. - Other small features, cleanups and fixes. Thanks to Amit Machhiwal, Arnd Bergmann, Christophe Leroy, Costa Shulyupin, David Hunter, David Wang, Disha Goel, Gautam Menghani, Geert Uytterhoeven, Hari Bathini, Julia Lawall, Kajol Jain, Keith Packard, Lukas Bulwahn, Madhavan Srinivasan, Markus Elfring, Michal Suchanek, Ming Lei, Mukesh Kumar Chaurasiya, Nathan Chancellor, Naveen N Rao, Nicholas Piggin, Nysal Jan K.A, Paulo Miguel Almeida, Pavithra Prakash, Ritesh Harjani (IBM), Rob Herring (Arm), Sachin P Bappalige, Shen Lichuan, Simon Horman, Sourabh Jain, Thomas Weißschuh, Thorsten Blum, Thorsten Leemhuis, Venkat Rao Bagalkote, Zhang Zekun, and zhang jiao. * tag 'powerpc-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (89 commits) EDAC/powerpc: Remove PPC_MAPLE drivers powerpc/perf: Add per-task/process monitoring to vpa_pmu driver powerpc/kvm: Add vpa latency counters to kvm_vcpu_arch docs: ABI: sysfs-bus-event_source-devices-vpa-pmu: Document sysfs event format entries for vpa_pmu powerpc/perf: Add perf interface to expose vpa counters MAINTAINERS: powerpc: Mark Maddy as "M" powerpc/Makefile: Allow overriding CPP powerpc-km82xx.c: replace of_node_put() with __free ps3: Correct some typos in comments powerpc/kexec: Fix return of uninitialized variable macintosh: Use common error handling code in via_pmu_led_init() powerpc/powermac: Use of_property_match_string() in pmac_has_backlight_type() powerpc: remove dead config options for MPC85xx platform support powerpc/xive: Use cpumask_intersects() selftests/powerpc: Remove the path after initialization. powerpc/xmon: symbol lookup length fixed powerpc/ep8248e: Use %pa to format resource_size_t powerpc/ps3: Reorganize kerneldoc parameter names KVM: PPC: Book3S HV: Fix kmv -> kvm typo powerpc/sstep: make emulate_vsx_load and emulate_vsx_store static ...
Diffstat (limited to 'arch/powerpc/platforms/maple/setup.c')
-rw-r--r--arch/powerpc/platforms/maple/setup.c363
1 files changed, 0 insertions, 363 deletions
diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c
deleted file mode 100644
index f329a03edf4a..000000000000
--- a/arch/powerpc/platforms/maple/setup.c
+++ /dev/null
@@ -1,363 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Maple (970 eval board) setup code
- *
- * (c) Copyright 2004 Benjamin Herrenschmidt ([email protected]),
- * IBM Corp.
- */
-
-#undef DEBUG
-
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/tty.h>
-#include <linux/string.h>
-#include <linux/delay.h>
-#include <linux/ioport.h>
-#include <linux/major.h>
-#include <linux/initrd.h>
-#include <linux/vt_kern.h>
-#include <linux/console.h>
-#include <linux/pci.h>
-#include <linux/adb.h>
-#include <linux/cuda.h>
-#include <linux/pmu.h>
-#include <linux/irq.h>
-#include <linux/seq_file.h>
-#include <linux/root_dev.h>
-#include <linux/serial.h>
-#include <linux/smp.h>
-#include <linux/bitops.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/platform_device.h>
-#include <linux/memblock.h>
-
-#include <asm/processor.h>
-#include <asm/sections.h>
-#include <asm/io.h>
-#include <asm/pci-bridge.h>
-#include <asm/iommu.h>
-#include <asm/machdep.h>
-#include <asm/dma.h>
-#include <asm/cputable.h>
-#include <asm/time.h>
-#include <asm/mpic.h>
-#include <asm/rtas.h>
-#include <asm/udbg.h>
-#include <asm/nvram.h>
-
-#include "maple.h"
-
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-static unsigned long maple_find_nvram_base(void)
-{
- struct device_node *rtcs;
- unsigned long result = 0;
-
- /* find NVRAM device */
- rtcs = of_find_compatible_node(NULL, "nvram", "AMD8111");
- if (rtcs) {
- struct resource r;
- if (of_address_to_resource(rtcs, 0, &r)) {
- printk(KERN_EMERG "Maple: Unable to translate NVRAM"
- " address\n");
- goto bail;
- }
- if (!(r.flags & IORESOURCE_IO)) {
- printk(KERN_EMERG "Maple: NVRAM address isn't PIO!\n");
- goto bail;
- }
- result = r.start;
- } else
- printk(KERN_EMERG "Maple: Unable to find NVRAM\n");
- bail:
- of_node_put(rtcs);
- return result;
-}
-
-static void __noreturn maple_restart(char *cmd)
-{
- unsigned int maple_nvram_base;
- const unsigned int *maple_nvram_offset, *maple_nvram_command;
- struct device_node *sp;
-
- maple_nvram_base = maple_find_nvram_base();
- if (maple_nvram_base == 0)
- goto fail;
-
- /* find service processor device */
- sp = of_find_node_by_name(NULL, "service-processor");
- if (!sp) {
- printk(KERN_EMERG "Maple: Unable to find Service Processor\n");
- goto fail;
- }
- maple_nvram_offset = of_get_property(sp, "restart-addr", NULL);
- maple_nvram_command = of_get_property(sp, "restart-value", NULL);
- of_node_put(sp);
-
- /* send command */
- outb_p(*maple_nvram_command, maple_nvram_base + *maple_nvram_offset);
- for (;;) ;
- fail:
- printk(KERN_EMERG "Maple: Manual Restart Required\n");
- for (;;) ;
-}
-
-static void __noreturn maple_power_off(void)
-{
- unsigned int maple_nvram_base;
- const unsigned int *maple_nvram_offset, *maple_nvram_command;
- struct device_node *sp;
-
- maple_nvram_base = maple_find_nvram_base();
- if (maple_nvram_base == 0)
- goto fail;
-
- /* find service processor device */
- sp = of_find_node_by_name(NULL, "service-processor");
- if (!sp) {
- printk(KERN_EMERG "Maple: Unable to find Service Processor\n");
- goto fail;
- }
- maple_nvram_offset = of_get_property(sp, "power-off-addr", NULL);
- maple_nvram_command = of_get_property(sp, "power-off-value", NULL);
- of_node_put(sp);
-
- /* send command */
- outb_p(*maple_nvram_command, maple_nvram_base + *maple_nvram_offset);
- for (;;) ;
- fail:
- printk(KERN_EMERG "Maple: Manual Power-Down Required\n");
- for (;;) ;
-}
-
-static void __noreturn maple_halt(void)
-{
- maple_power_off();
-}
-
-#ifdef CONFIG_SMP
-static struct smp_ops_t maple_smp_ops = {
- .probe = smp_mpic_probe,
- .message_pass = smp_mpic_message_pass,
- .kick_cpu = smp_generic_kick_cpu,
- .setup_cpu = smp_mpic_setup_cpu,
- .give_timebase = smp_generic_give_timebase,
- .take_timebase = smp_generic_take_timebase,
-};
-#endif /* CONFIG_SMP */
-
-static void __init maple_use_rtas_reboot_and_halt_if_present(void)
-{
- if (rtas_function_implemented(RTAS_FN_SYSTEM_REBOOT) &&
- rtas_function_implemented(RTAS_FN_POWER_OFF)) {
- ppc_md.restart = rtas_restart;
- pm_power_off = rtas_power_off;
- ppc_md.halt = rtas_halt;
- }
-}
-
-static void __init maple_setup_arch(void)
-{
- /* init to some ~sane value until calibrate_delay() runs */
- loops_per_jiffy = 50000000;
-
- /* Setup SMP callback */
-#ifdef CONFIG_SMP
- smp_ops = &maple_smp_ops;
-#endif
- maple_use_rtas_reboot_and_halt_if_present();
-
- printk(KERN_DEBUG "Using native/NAP idle loop\n");
-
- mmio_nvram_init();
-}
-
-/*
- * This is almost identical to pSeries and CHRP. We need to make that
- * code generic at one point, with appropriate bits in the device-tree to
- * identify the presence of an HT APIC
- */
-static void __init maple_init_IRQ(void)
-{
- struct device_node *root, *np, *mpic_node = NULL;
- const unsigned int *opprop;
- unsigned long openpic_addr = 0;
- int naddr, n, i, opplen, has_isus = 0;
- struct mpic *mpic;
- unsigned int flags = 0;
-
- /* Locate MPIC in the device-tree. Note that there is a bug
- * in Maple device-tree where the type of the controller is
- * open-pic and not interrupt-controller
- */
-
- for_each_node_by_type(np, "interrupt-controller")
- if (of_device_is_compatible(np, "open-pic")) {
- mpic_node = np;
- break;
- }
- if (mpic_node == NULL)
- for_each_node_by_type(np, "open-pic") {
- mpic_node = np;
- break;
- }
- if (mpic_node == NULL) {
- printk(KERN_ERR
- "Failed to locate the MPIC interrupt controller\n");
- return;
- }
-
- /* Find address list in /platform-open-pic */
- root = of_find_node_by_path("/");
- naddr = of_n_addr_cells(root);
- opprop = of_get_property(root, "platform-open-pic", &opplen);
- if (opprop) {
- openpic_addr = of_read_number(opprop, naddr);
- has_isus = (opplen > naddr);
- printk(KERN_DEBUG "OpenPIC addr: %lx, has ISUs: %d\n",
- openpic_addr, has_isus);
- }
-
- BUG_ON(openpic_addr == 0);
-
- /* Check for a big endian MPIC */
- if (of_property_read_bool(np, "big-endian"))
- flags |= MPIC_BIG_ENDIAN;
-
- /* XXX Maple specific bits */
- flags |= MPIC_U3_HT_IRQS;
- /* All U3/U4 are big-endian, older SLOF firmware doesn't encode this */
- flags |= MPIC_BIG_ENDIAN;
-
- /* Setup the openpic driver. More device-tree junks, we hard code no
- * ISUs for now. I'll have to revisit some stuffs with the folks doing
- * the firmware for those
- */
- mpic = mpic_alloc(mpic_node, openpic_addr, flags,
- /*has_isus ? 16 :*/ 0, 0, " MPIC ");
- BUG_ON(mpic == NULL);
-
- /* Add ISUs */
- opplen /= sizeof(u32);
- for (n = 0, i = naddr; i < opplen; i += naddr, n++) {
- unsigned long isuaddr = of_read_number(opprop + i, naddr);
- mpic_assign_isu(mpic, n, isuaddr);
- }
-
- /* All ISUs are setup, complete initialization */
- mpic_init(mpic);
- ppc_md.get_irq = mpic_get_irq;
- of_node_put(mpic_node);
- of_node_put(root);
-}
-
-static void __init maple_progress(char *s, unsigned short hex)
-{
- printk("*** %04x : %s\n", hex, s ? s : "");
-}
-
-
-/*
- * Called very early, MMU is off, device-tree isn't unflattened
- */
-static int __init maple_probe(void)
-{
- if (!of_machine_is_compatible("Momentum,Maple") &&
- !of_machine_is_compatible("Momentum,Apache"))
- return 0;
-
- pm_power_off = maple_power_off;
-
- iommu_init_early_dart(&maple_pci_controller_ops);
-
- return 1;
-}
-
-#ifdef CONFIG_EDAC
-/*
- * Register a platform device for CPC925 memory controller on
- * all boards with U3H (CPC925) bridge.
- */
-static int __init maple_cpc925_edac_setup(void)
-{
- struct platform_device *pdev;
- struct device_node *np = NULL;
- struct resource r;
- int ret;
- volatile void __iomem *mem;
- u32 rev;
-
- np = of_find_node_by_type(NULL, "memory-controller");
- if (!np) {
- printk(KERN_ERR "%s: Unable to find memory-controller node\n",
- __func__);
- return -ENODEV;
- }
-
- ret = of_address_to_resource(np, 0, &r);
- of_node_put(np);
-
- if (ret < 0) {
- printk(KERN_ERR "%s: Unable to get memory-controller reg\n",
- __func__);
- return -ENODEV;
- }
-
- mem = ioremap(r.start, resource_size(&r));
- if (!mem) {
- printk(KERN_ERR "%s: Unable to map memory-controller memory\n",
- __func__);
- return -ENOMEM;
- }
-
- rev = __raw_readl(mem);
- iounmap(mem);
-
- if (rev < 0x34 || rev > 0x3f) { /* U3H */
- printk(KERN_ERR "%s: Non-CPC925(U3H) bridge revision: %02x\n",
- __func__, rev);
- return 0;
- }
-
- pdev = platform_device_register_simple("cpc925_edac", 0, &r, 1);
- if (IS_ERR(pdev))
- return PTR_ERR(pdev);
-
- printk(KERN_INFO "%s: CPC925 platform device created\n", __func__);
-
- return 0;
-}
-machine_device_initcall(maple, maple_cpc925_edac_setup);
-#endif
-
-define_machine(maple) {
- .name = "Maple",
- .probe = maple_probe,
- .setup_arch = maple_setup_arch,
- .discover_phbs = maple_pci_init,
- .init_IRQ = maple_init_IRQ,
- .pci_irq_fixup = maple_pci_irq_fixup,
- .pci_get_legacy_ide_irq = maple_pci_get_legacy_ide_irq,
- .restart = maple_restart,
- .halt = maple_halt,
- .get_boot_time = maple_get_boot_time,
- .set_rtc_time = maple_set_rtc_time,
- .get_rtc_time = maple_get_rtc_time,
- .progress = maple_progress,
- .power_save = power4_idle,
-};