summaryrefslogtreecommitdiffstats
path: root/arch/sh/kernel
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:35:05 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:39:31 +0000
commit85c675d0d09a45a135bddd15d7b385f8758c32fb (patch)
tree76267dbc9b9a130337be3640948fe397b04ac629 /arch/sh/kernel
parentAdding upstream version 6.6.15. (diff)
downloadlinux-85c675d0d09a45a135bddd15d7b385f8758c32fb.tar.xz
linux-85c675d0d09a45a135bddd15d7b385f8758c32fb.zip
Adding upstream version 6.7.7.upstream/6.7.7
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/sh/kernel')
-rw-r--r--arch/sh/kernel/Makefile2
-rw-r--r--arch/sh/kernel/cpu/sh4/Makefile4
-rw-r--r--arch/sh/kernel/cpu/sh4/clock-sh4-202.c174
-rw-r--r--arch/sh/kernel/cpu/sh4/setup-sh4-202.c139
-rw-r--r--arch/sh/kernel/ioport.c13
-rw-r--r--arch/sh/kernel/machine_kexec.c2
-rw-r--r--arch/sh/kernel/reboot.c4
-rw-r--r--arch/sh/kernel/setup.c7
-rw-r--r--arch/sh/kernel/syscalls/syscall.tbl6
9 files changed, 11 insertions, 340 deletions
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index 69cd9ac4b2..2d7e70537d 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -33,7 +33,7 @@ obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_SH_STANDARD_BIOS) += sh_bios.o
obj-$(CONFIG_KGDB) += kgdb.o
obj-$(CONFIG_MODULES) += sh_ksyms_32.o module.o
-obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
+obj-$(CONFIG_KEXEC_CORE) += machine_kexec.o relocate_kernel.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
obj-$(CONFIG_IO_TRAPPED) += io_trapped.o
diff --git a/arch/sh/kernel/cpu/sh4/Makefile b/arch/sh/kernel/cpu/sh4/Makefile
index 00c16331e0..02e3ee16e1 100644
--- a/arch/sh/kernel/cpu/sh4/Makefile
+++ b/arch/sh/kernel/cpu/sh4/Makefile
@@ -23,15 +23,11 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7091) += setup-sh7750.o
obj-$(CONFIG_CPU_SUBTYPE_SH7751) += setup-sh7750.o
obj-$(CONFIG_CPU_SUBTYPE_SH7751R) += setup-sh7750.o
obj-$(CONFIG_CPU_SUBTYPE_SH7760) += setup-sh7760.o
-obj-$(CONFIG_CPU_SUBTYPE_SH4_202) += setup-sh4-202.o
# Primary on-chip clocks (common)
ifndef CONFIG_CPU_SH4A
clock-$(CONFIG_CPU_SH4) := clock-sh4.o
endif
-# Additional clocks by subtype
-clock-$(CONFIG_CPU_SUBTYPE_SH4_202) += clock-sh4-202.o
-
obj-y += $(clock-y)
obj-$(CONFIG_PERF_EVENTS) += $(perf-y)
diff --git a/arch/sh/kernel/cpu/sh4/clock-sh4-202.c b/arch/sh/kernel/cpu/sh4/clock-sh4-202.c
deleted file mode 100644
index c1cdef763c..0000000000
--- a/arch/sh/kernel/cpu/sh4/clock-sh4-202.c
+++ /dev/null
@@ -1,174 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * arch/sh/kernel/cpu/sh4/clock-sh4-202.c
- *
- * Additional SH4-202 support for the clock framework
- *
- * Copyright (C) 2005 Paul Mundt
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/clkdev.h>
-#include <asm/clock.h>
-#include <asm/freq.h>
-
-#define CPG2_FRQCR3 0xfe0a0018
-
-static int frqcr3_divisors[] = { 1, 2, 3, 4, 6, 8, 16 };
-static int frqcr3_values[] = { 0, 1, 2, 3, 4, 5, 6 };
-
-static unsigned long emi_clk_recalc(struct clk *clk)
-{
- int idx = __raw_readl(CPG2_FRQCR3) & 0x0007;
- return clk->parent->rate / frqcr3_divisors[idx];
-}
-
-static inline int frqcr3_lookup(struct clk *clk, unsigned long rate)
-{
- int divisor = clk->parent->rate / rate;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(frqcr3_divisors); i++)
- if (frqcr3_divisors[i] == divisor)
- return frqcr3_values[i];
-
- /* Safe fallback */
- return 5;
-}
-
-static struct sh_clk_ops sh4202_emi_clk_ops = {
- .recalc = emi_clk_recalc,
-};
-
-static struct clk sh4202_emi_clk = {
- .flags = CLK_ENABLE_ON_INIT,
- .ops = &sh4202_emi_clk_ops,
-};
-
-static unsigned long femi_clk_recalc(struct clk *clk)
-{
- int idx = (__raw_readl(CPG2_FRQCR3) >> 3) & 0x0007;
- return clk->parent->rate / frqcr3_divisors[idx];
-}
-
-static struct sh_clk_ops sh4202_femi_clk_ops = {
- .recalc = femi_clk_recalc,
-};
-
-static struct clk sh4202_femi_clk = {
- .flags = CLK_ENABLE_ON_INIT,
- .ops = &sh4202_femi_clk_ops,
-};
-
-static void shoc_clk_init(struct clk *clk)
-{
- int i;
-
- /*
- * For some reason, the shoc_clk seems to be set to some really
- * insane value at boot (values outside of the allowable frequency
- * range for instance). We deal with this by scaling it back down
- * to something sensible just in case.
- *
- * Start scaling from the high end down until we find something
- * that passes rate verification..
- */
- for (i = 0; i < ARRAY_SIZE(frqcr3_divisors); i++) {
- int divisor = frqcr3_divisors[i];
-
- if (clk->ops->set_rate(clk, clk->parent->rate / divisor) == 0)
- break;
- }
-
- WARN_ON(i == ARRAY_SIZE(frqcr3_divisors)); /* Undefined clock */
-}
-
-static unsigned long shoc_clk_recalc(struct clk *clk)
-{
- int idx = (__raw_readl(CPG2_FRQCR3) >> 6) & 0x0007;
- return clk->parent->rate / frqcr3_divisors[idx];
-}
-
-static int shoc_clk_verify_rate(struct clk *clk, unsigned long rate)
-{
- struct clk *bclk = clk_get(NULL, "bus_clk");
- unsigned long bclk_rate = clk_get_rate(bclk);
-
- clk_put(bclk);
-
- if (rate > bclk_rate)
- return 1;
- if (rate > 66000000)
- return 1;
-
- return 0;
-}
-
-static int shoc_clk_set_rate(struct clk *clk, unsigned long rate)
-{
- unsigned long frqcr3;
- unsigned int tmp;
-
- /* Make sure we have something sensible to switch to */
- if (shoc_clk_verify_rate(clk, rate) != 0)
- return -EINVAL;
-
- tmp = frqcr3_lookup(clk, rate);
-
- frqcr3 = __raw_readl(CPG2_FRQCR3);
- frqcr3 &= ~(0x0007 << 6);
- frqcr3 |= tmp << 6;
- __raw_writel(frqcr3, CPG2_FRQCR3);
-
- clk->rate = clk->parent->rate / frqcr3_divisors[tmp];
-
- return 0;
-}
-
-static struct sh_clk_ops sh4202_shoc_clk_ops = {
- .init = shoc_clk_init,
- .recalc = shoc_clk_recalc,
- .set_rate = shoc_clk_set_rate,
-};
-
-static struct clk sh4202_shoc_clk = {
- .flags = CLK_ENABLE_ON_INIT,
- .ops = &sh4202_shoc_clk_ops,
-};
-
-static struct clk *sh4202_onchip_clocks[] = {
- &sh4202_emi_clk,
- &sh4202_femi_clk,
- &sh4202_shoc_clk,
-};
-
-static struct clk_lookup lookups[] = {
- /* main clocks */
- CLKDEV_CON_ID("emi_clk", &sh4202_emi_clk),
- CLKDEV_CON_ID("femi_clk", &sh4202_femi_clk),
- CLKDEV_CON_ID("shoc_clk", &sh4202_shoc_clk),
-};
-
-int __init arch_clk_init(void)
-{
- struct clk *clk;
- int i, ret = 0;
-
- cpg_clk_init();
-
- clk = clk_get(NULL, "master_clk");
- for (i = 0; i < ARRAY_SIZE(sh4202_onchip_clocks); i++) {
- struct clk *clkp = sh4202_onchip_clocks[i];
-
- clkp->parent = clk;
- ret |= clk_register(clkp);
- }
-
- clk_put(clk);
-
- clkdev_add_table(lookups, ARRAY_SIZE(lookups));
-
- return ret;
-}
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c
deleted file mode 100644
index e6737f3d0d..0000000000
--- a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c
+++ /dev/null
@@ -1,139 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * SH4-202 Setup
- *
- * Copyright (C) 2006 Paul Mundt
- * Copyright (C) 2009 Magnus Damm
- */
-#include <linux/platform_device.h>
-#include <linux/init.h>
-#include <linux/serial.h>
-#include <linux/serial_sci.h>
-#include <linux/sh_timer.h>
-#include <linux/sh_intc.h>
-#include <linux/io.h>
-#include <asm/platform_early.h>
-
-static struct plat_sci_port scif0_platform_data = {
- .scscr = SCSCR_REIE,
- .type = PORT_SCIF,
-};
-
-static struct resource scif0_resources[] = {
- DEFINE_RES_MEM(0xffe80000, 0x100),
- DEFINE_RES_IRQ(evt2irq(0x700)),
- DEFINE_RES_IRQ(evt2irq(0x720)),
- DEFINE_RES_IRQ(evt2irq(0x760)),
- DEFINE_RES_IRQ(evt2irq(0x740)),
-};
-
-static struct platform_device scif0_device = {
- .name = "sh-sci",
- .id = 0,
- .resource = scif0_resources,
- .num_resources = ARRAY_SIZE(scif0_resources),
- .dev = {
- .platform_data = &scif0_platform_data,
- },
-};
-
-static struct sh_timer_config tmu0_platform_data = {
- .channels_mask = 7,
-};
-
-static struct resource tmu0_resources[] = {
- DEFINE_RES_MEM(0xffd80000, 0x30),
- DEFINE_RES_IRQ(evt2irq(0x400)),
- DEFINE_RES_IRQ(evt2irq(0x420)),
- DEFINE_RES_IRQ(evt2irq(0x440)),
-};
-
-static struct platform_device tmu0_device = {
- .name = "sh-tmu",
- .id = 0,
- .dev = {
- .platform_data = &tmu0_platform_data,
- },
- .resource = tmu0_resources,
- .num_resources = ARRAY_SIZE(tmu0_resources),
-};
-
-static struct platform_device *sh4202_devices[] __initdata = {
- &scif0_device,
- &tmu0_device,
-};
-
-static int __init sh4202_devices_setup(void)
-{
- return platform_add_devices(sh4202_devices,
- ARRAY_SIZE(sh4202_devices));
-}
-arch_initcall(sh4202_devices_setup);
-
-static struct platform_device *sh4202_early_devices[] __initdata = {
- &scif0_device,
- &tmu0_device,
-};
-
-void __init plat_early_device_setup(void)
-{
- sh_early_platform_add_devices(sh4202_early_devices,
- ARRAY_SIZE(sh4202_early_devices));
-}
-
-enum {
- UNUSED = 0,
-
- /* interrupt sources */
- IRL0, IRL1, IRL2, IRL3, /* only IRLM mode supported */
- HUDI, TMU0, TMU1, TMU2, RTC, SCIF, WDT,
-};
-
-static struct intc_vect vectors[] __initdata = {
- INTC_VECT(HUDI, 0x600),
- INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
- INTC_VECT(TMU2, 0x440), INTC_VECT(TMU2, 0x460),
- INTC_VECT(RTC, 0x480), INTC_VECT(RTC, 0x4a0),
- INTC_VECT(RTC, 0x4c0),
- INTC_VECT(SCIF, 0x700), INTC_VECT(SCIF, 0x720),
- INTC_VECT(SCIF, 0x740), INTC_VECT(SCIF, 0x760),
- INTC_VECT(WDT, 0x560),
-};
-
-static struct intc_prio_reg prio_registers[] __initdata = {
- { 0xffd00004, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
- { 0xffd00008, 0, 16, 4, /* IPRB */ { WDT, 0, 0, 0 } },
- { 0xffd0000c, 0, 16, 4, /* IPRC */ { 0, 0, SCIF, HUDI } },
- { 0xffd00010, 0, 16, 4, /* IPRD */ { IRL0, IRL1, IRL2, IRL3 } },
-};
-
-static DECLARE_INTC_DESC(intc_desc, "sh4-202", vectors, NULL,
- NULL, prio_registers, NULL);
-
-static struct intc_vect vectors_irlm[] __initdata = {
- INTC_VECT(IRL0, 0x240), INTC_VECT(IRL1, 0x2a0),
- INTC_VECT(IRL2, 0x300), INTC_VECT(IRL3, 0x360),
-};
-
-static DECLARE_INTC_DESC(intc_desc_irlm, "sh4-202_irlm", vectors_irlm, NULL,
- NULL, prio_registers, NULL);
-
-void __init plat_irq_setup(void)
-{
- register_intc_controller(&intc_desc);
-}
-
-#define INTC_ICR 0xffd00000UL
-#define INTC_ICR_IRLM (1<<7)
-
-void __init plat_irq_setup_pins(int mode)
-{
- switch (mode) {
- case IRQ_MODE_IRQ: /* individual interrupt mode for IRL3-0 */
- __raw_writew(__raw_readw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR);
- register_intc_controller(&intc_desc_irlm);
- break;
- default:
- BUG();
- }
-}
diff --git a/arch/sh/kernel/ioport.c b/arch/sh/kernel/ioport.c
index f39446a658..c8aff8a201 100644
--- a/arch/sh/kernel/ioport.c
+++ b/arch/sh/kernel/ioport.c
@@ -12,15 +12,6 @@
unsigned long sh_io_port_base __read_mostly = -1;
EXPORT_SYMBOL(sh_io_port_base);
-void __iomem *__ioport_map(unsigned long addr, unsigned int size)
-{
- if (sh_mv.mv_ioport_map)
- return sh_mv.mv_ioport_map(addr, size);
-
- return (void __iomem *)(addr + sh_io_port_base);
-}
-EXPORT_SYMBOL(__ioport_map);
-
void __iomem *ioport_map(unsigned long port, unsigned int nr)
{
void __iomem *ret;
@@ -29,13 +20,11 @@ void __iomem *ioport_map(unsigned long port, unsigned int nr)
if (ret)
return ret;
- return __ioport_map(port, nr);
+ return (void __iomem *)(port + sh_io_port_base);
}
EXPORT_SYMBOL(ioport_map);
void ioport_unmap(void __iomem *addr)
{
- if (sh_mv.mv_ioport_unmap)
- sh_mv.mv_ioport_unmap(addr);
}
EXPORT_SYMBOL(ioport_unmap);
diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c
index 223c14f44a..fa3a7b3619 100644
--- a/arch/sh/kernel/machine_kexec.c
+++ b/arch/sh/kernel/machine_kexec.c
@@ -154,7 +154,7 @@ void __init reserve_crashkernel(void)
int ret;
ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(),
- &crash_size, &crash_base);
+ &crash_size, &crash_base, NULL, NULL);
if (ret == 0 && crash_size > 0) {
crashk_res.start = crash_base;
crashk_res.end = crash_base + crash_size - 1;
diff --git a/arch/sh/kernel/reboot.c b/arch/sh/kernel/reboot.c
index e8eeedc9b1..1de006b1c3 100644
--- a/arch/sh/kernel/reboot.c
+++ b/arch/sh/kernel/reboot.c
@@ -63,7 +63,7 @@ struct machine_ops machine_ops = {
.shutdown = native_machine_shutdown,
.restart = native_machine_restart,
.halt = native_machine_halt,
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
.crash_shutdown = native_machine_crash_shutdown,
#endif
};
@@ -88,7 +88,7 @@ void machine_halt(void)
machine_ops.halt();
}
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
void machine_crash_shutdown(struct pt_regs *regs)
{
machine_ops.crash_shutdown(regs);
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index b3da2757fa..d3175f09b3 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -7,7 +7,6 @@
* Copyright (C) 1999 Niibe Yutaka
* Copyright (C) 2002 - 2010 Paul Mundt
*/
-#include <linux/screen_info.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/initrd.h>
@@ -69,10 +68,6 @@ EXPORT_SYMBOL(cpu_data);
struct sh_machine_vector sh_mv = { .mv_name = "generic", };
EXPORT_SYMBOL(sh_mv);
-#ifdef CONFIG_VT
-struct screen_info screen_info;
-#endif
-
extern int root_mountflags;
#define RAMDISK_IMAGE_START_MASK 0x07FF
@@ -225,7 +220,7 @@ void __init __add_active_range(unsigned int nid, unsigned long start_pfn,
request_resource(res, &code_resource);
request_resource(res, &data_resource);
request_resource(res, &bss_resource);
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
request_resource(res, &crashk_res);
#endif
diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl
index e90d585c4d..363fae0fe9 100644
--- a/arch/sh/kernel/syscalls/syscall.tbl
+++ b/arch/sh/kernel/syscalls/syscall.tbl
@@ -260,7 +260,7 @@
250 common fadvise64 sys_fadvise64
# 251 is unused
252 common exit_group sys_exit_group
-253 common lookup_dcookie sys_lookup_dcookie
+253 common lookup_dcookie sys_ni_syscall
254 common epoll_create sys_epoll_create
255 common epoll_ctl sys_epoll_ctl
256 common epoll_wait sys_epoll_wait
@@ -455,3 +455,7 @@
450 common set_mempolicy_home_node sys_set_mempolicy_home_node
451 common cachestat sys_cachestat
452 common fchmodat2 sys_fchmodat2
+453 common map_shadow_stack sys_map_shadow_stack
+454 common futex_wake sys_futex_wake
+455 common futex_wait sys_futex_wait
+456 common futex_requeue sys_futex_requeue