Merge tag 'asm-generic-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull ia64 removal and asm-generic updates from Arnd Bergmann:

 - The ia64 architecture gets its well-earned retirement as planned,
   now that there is one last (mostly) working release that will be
   maintained as an LTS kernel.

 - The architecture specific system call tables are updated for the
   added map_shadow_stack() syscall and to remove references to the
   long-gone sys_lookup_dcookie() syscall.

* tag 'asm-generic-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  hexagon: Remove unusable symbols from the ptrace.h uapi
  asm-generic: Fix spelling of architecture
  arch: Reserve map_shadow_stack() syscall number for all architectures
  syscalls: Cleanup references to sys_lookup_dcookie()
  Documentation: Drop or replace remaining mentions of IA64
  lib/raid6: Drop IA64 support
  Documentation: Drop IA64 from feature descriptions
  kernel: Drop IA64 support from sig_fault handlers
  arch: Remove Itanium (IA-64) architecture

3 files changed, 0 insertions, 365 deletions

diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index f429b9b37b76c..35efb53d5492a 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -239,17 +239,6 @@ if PPC32 || PPC64
 source "drivers/cpufreq/Kconfig.powerpc"
 endif
 
-if IA64
-config IA64_ACPI_CPUFREQ
-	tristate "ACPI Processor P-States driver"
-	depends on ACPI_PROCESSOR
-	help
-	This driver adds a CPUFreq driver which utilizes the ACPI
-	Processor Performance States.
-
-	If in doubt, say N.
-endif
-
 if MIPS
 config BMIPS_CPUFREQ
 	tristate "BMIPS CPUfreq Driver"
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index ef85107749131..8d141c71b016b 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -102,7 +102,6 @@ obj-$(CONFIG_POWERNV_CPUFREQ)		+= powernv-cpufreq.o
 ##################################################################################
 # Other platform drivers
 obj-$(CONFIG_BMIPS_CPUFREQ)		+= bmips-cpufreq.o
-obj-$(CONFIG_IA64_ACPI_CPUFREQ)		+= ia64-acpi-cpufreq.o
 obj-$(CONFIG_LOONGSON2_CPUFREQ)		+= loongson2_cpufreq.o
 obj-$(CONFIG_SH_CPU_FREQ)		+= sh-cpufreq.o
 obj-$(CONFIG_SPARC_US2E_CPUFREQ)	+= sparc-us2e-cpufreq.o
diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c
deleted file mode 100644
index c6bdc455517f8..0000000000000
--- a/drivers/cpufreq/ia64-acpi-cpufreq.c
+++ /dev/null
@@ -1,353 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * This file provides the ACPI based P-state support. This
- * module works with generic cpufreq infrastructure. Most of
- * the code is based on i386 version
- * (arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c)
- *
- * Copyright (C) 2005 Intel Corp
- *      Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/cpufreq.h>
-#include <linux/proc_fs.h>
-#include <asm/io.h>
-#include <linux/uaccess.h>
-#include <asm/pal.h>
-
-#include <linux/acpi.h>
-#include <acpi/processor.h>
-
-MODULE_AUTHOR("Venkatesh Pallipadi");
-MODULE_DESCRIPTION("ACPI Processor P-States Driver");
-MODULE_LICENSE("GPL");
-
-struct cpufreq_acpi_io {
-	struct acpi_processor_performance	acpi_data;
-	unsigned int				resume;
-};
-
-struct cpufreq_acpi_req {
-	unsigned int		cpu;
-	unsigned int		state;
-};
-
-static struct cpufreq_acpi_io	*acpi_io_data[NR_CPUS];
-
-static struct cpufreq_driver acpi_cpufreq_driver;
-
-
-static int
-processor_set_pstate (
-	u32	value)
-{
-	s64 retval;
-
-	pr_debug("processor_set_pstate\n");
-
-	retval = ia64_pal_set_pstate((u64)value);
-
-	if (retval) {
-		pr_debug("Failed to set freq to 0x%x, with error 0x%llx\n",
-		        value, retval);
-		return -ENODEV;
-	}
-	return (int)retval;
-}
-
-
-static int
-processor_get_pstate (
-	u32	*value)
-{
-	u64	pstate_index = 0;
-	s64 	retval;
-
-	pr_debug("processor_get_pstate\n");
-
-	retval = ia64_pal_get_pstate(&pstate_index,
-	                             PAL_GET_PSTATE_TYPE_INSTANT);
-	*value = (u32) pstate_index;
-
-	if (retval)
-		pr_debug("Failed to get current freq with "
-			"error 0x%llx, idx 0x%x\n", retval, *value);
-
-	return (int)retval;
-}
-
-
-/* To be used only after data->acpi_data is initialized */
-static unsigned
-extract_clock (
-	struct cpufreq_acpi_io *data,
-	unsigned value)
-{
-	unsigned long i;
-
-	pr_debug("extract_clock\n");
-
-	for (i = 0; i < data->acpi_data.state_count; i++) {
-		if (value == data->acpi_data.states[i].status)
-			return data->acpi_data.states[i].core_frequency;
-	}
-	return data->acpi_data.states[i-1].core_frequency;
-}
-
-
-static long
-processor_get_freq (
-	void *arg)
-{
-	struct cpufreq_acpi_req *req = arg;
-	unsigned int		cpu = req->cpu;
-	struct cpufreq_acpi_io	*data = acpi_io_data[cpu];
-	u32			value;
-	int			ret;
-
-	pr_debug("processor_get_freq\n");
-	if (smp_processor_id() != cpu)
-		return -EAGAIN;
-
-	/* processor_get_pstate gets the instantaneous frequency */
-	ret = processor_get_pstate(&value);
-	if (ret) {
-		pr_warn("get performance failed with error %d\n", ret);
-		return ret;
-	}
-	return 1000 * extract_clock(data, value);
-}
-
-
-static long
-processor_set_freq (
-	void *arg)
-{
-	struct cpufreq_acpi_req *req = arg;
-	unsigned int		cpu = req->cpu;
-	struct cpufreq_acpi_io	*data = acpi_io_data[cpu];
-	int			ret, state = req->state;
-	u32			value;
-
-	pr_debug("processor_set_freq\n");
-	if (smp_processor_id() != cpu)
-		return -EAGAIN;
-
-	if (state == data->acpi_data.state) {
-		if (unlikely(data->resume)) {
-			pr_debug("Called after resume, resetting to P%d\n", state);
-			data->resume = 0;
-		} else {
-			pr_debug("Already at target state (P%d)\n", state);
-			return 0;
-		}
-	}
-
-	pr_debug("Transitioning from P%d to P%d\n",
-		data->acpi_data.state, state);
-
-	/*
-	 * First we write the target state's 'control' value to the
-	 * control_register.
-	 */
-	value = (u32) data->acpi_data.states[state].control;
-
-	pr_debug("Transitioning to state: 0x%08x\n", value);
-
-	ret = processor_set_pstate(value);
-	if (ret) {
-		pr_warn("Transition failed with error %d\n", ret);
-		return -ENODEV;
-	}
-
-	data->acpi_data.state = state;
-	return 0;
-}
-
-
-static unsigned int
-acpi_cpufreq_get (
-	unsigned int		cpu)
-{
-	struct cpufreq_acpi_req req;
-	long ret;
-
-	req.cpu = cpu;
-	ret = work_on_cpu(cpu, processor_get_freq, &req);
-
-	return ret > 0 ? (unsigned int) ret : 0;
-}
-
-
-static int
-acpi_cpufreq_target (
-	struct cpufreq_policy   *policy,
-	unsigned int index)
-{
-	struct cpufreq_acpi_req req;
-
-	req.cpu = policy->cpu;
-	req.state = index;
-
-	return work_on_cpu(req.cpu, processor_set_freq, &req);
-}
-
-static int
-acpi_cpufreq_cpu_init (
-	struct cpufreq_policy   *policy)
-{
-	unsigned int		i;
-	unsigned int		cpu = policy->cpu;
-	struct cpufreq_acpi_io	*data;
-	unsigned int		result = 0;
-	struct cpufreq_frequency_table *freq_table;
-
-	pr_debug("acpi_cpufreq_cpu_init\n");
-
-	data = kzalloc(sizeof(*data), GFP_KERNEL);
-	if (!data)
-		return (-ENOMEM);
-
-	acpi_io_data[cpu] = data;
-
-	result = acpi_processor_register_performance(&data->acpi_data, cpu);
-
-	if (result)
-		goto err_free;
-
-	/* capability check */
-	if (data->acpi_data.state_count <= 1) {
-		pr_debug("No P-States\n");
-		result = -ENODEV;
-		goto err_unreg;
-	}
-
-	if ((data->acpi_data.control_register.space_id !=
-					ACPI_ADR_SPACE_FIXED_HARDWARE) ||
-	    (data->acpi_data.status_register.space_id !=
-					ACPI_ADR_SPACE_FIXED_HARDWARE)) {
-		pr_debug("Unsupported address space [%d, %d]\n",
-			(u32) (data->acpi_data.control_register.space_id),
-			(u32) (data->acpi_data.status_register.space_id));
-		result = -ENODEV;
-		goto err_unreg;
-	}
-
-	/* alloc freq_table */
-	freq_table = kcalloc(data->acpi_data.state_count + 1,
-	                           sizeof(*freq_table),
-	                           GFP_KERNEL);
-	if (!freq_table) {
-		result = -ENOMEM;
-		goto err_unreg;
-	}
-
-	/* detect transition latency */
-	policy->cpuinfo.transition_latency = 0;
-	for (i=0; i<data->acpi_data.state_count; i++) {
-		if ((data->acpi_data.states[i].transition_latency * 1000) >
-		    policy->cpuinfo.transition_latency) {
-			policy->cpuinfo.transition_latency =
-			    data->acpi_data.states[i].transition_latency * 1000;
-		}
-	}
-
-	/* table init */
-	for (i = 0; i <= data->acpi_data.state_count; i++)
-	{
-		if (i < data->acpi_data.state_count) {
-			freq_table[i].frequency =
-			      data->acpi_data.states[i].core_frequency * 1000;
-		} else {
-			freq_table[i].frequency = CPUFREQ_TABLE_END;
-		}
-	}
-
-	policy->freq_table = freq_table;
-
-	/* notify BIOS that we exist */
-	acpi_processor_notify_smm(THIS_MODULE);
-
-	pr_info("CPU%u - ACPI performance management activated\n", cpu);
-
-	for (i = 0; i < data->acpi_data.state_count; i++)
-		pr_debug("     %cP%d: %d MHz, %d mW, %d uS, %d uS, 0x%x 0x%x\n",
-			(i == data->acpi_data.state?'*':' '), i,
-			(u32) data->acpi_data.states[i].core_frequency,
-			(u32) data->acpi_data.states[i].power,
-			(u32) data->acpi_data.states[i].transition_latency,
-			(u32) data->acpi_data.states[i].bus_master_latency,
-			(u32) data->acpi_data.states[i].status,
-			(u32) data->acpi_data.states[i].control);
-
-	/* the first call to ->target() should result in us actually
-	 * writing something to the appropriate registers. */
-	data->resume = 1;
-
-	return (result);
-
- err_unreg:
-	acpi_processor_unregister_performance(cpu);
- err_free:
-	kfree(data);
-	acpi_io_data[cpu] = NULL;
-
-	return (result);
-}
-
-
-static int
-acpi_cpufreq_cpu_exit (
-	struct cpufreq_policy   *policy)
-{
-	struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu];
-
-	pr_debug("acpi_cpufreq_cpu_exit\n");
-
-	if (data) {
-		acpi_io_data[policy->cpu] = NULL;
-		acpi_processor_unregister_performance(policy->cpu);
-		kfree(policy->freq_table);
-		kfree(data);
-	}
-
-	return (0);
-}
-
-
-static struct cpufreq_driver acpi_cpufreq_driver = {
-	.verify 	= cpufreq_generic_frequency_table_verify,
-	.target_index	= acpi_cpufreq_target,
-	.get 		= acpi_cpufreq_get,
-	.init		= acpi_cpufreq_cpu_init,
-	.exit		= acpi_cpufreq_cpu_exit,
-	.name		= "acpi-cpufreq",
-	.attr		= cpufreq_generic_attr,
-};
-
-
-static int __init
-acpi_cpufreq_init (void)
-{
-	pr_debug("acpi_cpufreq_init\n");
-
- 	return cpufreq_register_driver(&acpi_cpufreq_driver);
-}
-
-
-static void __exit
-acpi_cpufreq_exit (void)
-{
-	pr_debug("acpi_cpufreq_exit\n");
-
-	cpufreq_unregister_driver(&acpi_cpufreq_driver);
-}
-
-late_initcall(acpi_cpufreq_init);
-module_exit(acpi_cpufreq_exit);