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-rw-r--r--arch/sh/kernel/cpu/sh2a/fpu.c27
-rw-r--r--arch/sh/kernel/cpu/sh2a/setup-mxg.c23
-rw-r--r--arch/sh/kernel/cpu/sh2a/setup-sh7201.c181
-rw-r--r--arch/sh/kernel/cpu/sh2a/setup-sh7203.c89
-rw-r--r--arch/sh/kernel/cpu/sh2a/setup-sh7206.c89
5 files changed, 279 insertions, 130 deletions
diff --git a/arch/sh/kernel/cpu/sh2a/fpu.c b/arch/sh/kernel/cpu/sh2a/fpu.c
index 6df2fb98eb30..d395ce5740e7 100644
--- a/arch/sh/kernel/cpu/sh2a/fpu.c
+++ b/arch/sh/kernel/cpu/sh2a/fpu.c
@@ -25,14 +25,12 @@
/*
* Save FPU registers onto task structure.
- * Assume called with FPU enabled (SR.FD=0).
*/
void
-save_fpu(struct task_struct *tsk, struct pt_regs *regs)
+save_fpu(struct task_struct *tsk)
{
unsigned long dummy;
- clear_tsk_thread_flag(tsk, TIF_USEDFPU);
enable_fpu();
asm volatile("sts.l fpul, @-%0\n\t"
"sts.l fpscr, @-%0\n\t"
@@ -60,7 +58,6 @@ save_fpu(struct task_struct *tsk, struct pt_regs *regs)
: "memory");
disable_fpu();
- release_fpu(regs);
}
static void
@@ -598,31 +595,31 @@ BUILD_TRAP_HANDLER(fpu_error)
struct task_struct *tsk = current;
TRAP_HANDLER_DECL;
- save_fpu(tsk, regs);
+ __unlazy_fpu(tsk, regs);
if (ieee_fpe_handler(regs)) {
tsk->thread.fpu.hard.fpscr &=
~(FPSCR_CAUSE_MASK | FPSCR_FLAG_MASK);
grab_fpu(regs);
restore_fpu(tsk);
- set_tsk_thread_flag(tsk, TIF_USEDFPU);
+ task_thread_info(tsk)->status |= TS_USEDFPU;
return;
}
force_sig(SIGFPE, tsk);
}
-BUILD_TRAP_HANDLER(fpu_state_restore)
+void fpu_state_restore(struct pt_regs *regs)
{
struct task_struct *tsk = current;
- TRAP_HANDLER_DECL;
grab_fpu(regs);
- if (!user_mode(regs)) {
+ if (unlikely(!user_mode(regs))) {
printk(KERN_ERR "BUG: FPU is used in kernel mode.\n");
+ BUG();
return;
}
- if (used_math()) {
+ if (likely(used_math())) {
/* Using the FPU again. */
restore_fpu(tsk);
} else {
@@ -630,5 +627,13 @@ BUILD_TRAP_HANDLER(fpu_state_restore)
fpu_init();
set_used_math();
}
- set_tsk_thread_flag(tsk, TIF_USEDFPU);
+ task_thread_info(tsk)->status |= TS_USEDFPU;
+ tsk->fpu_counter++;
+}
+
+BUILD_TRAP_HANDLER(fpu_state_restore)
+{
+ TRAP_HANDLER_DECL;
+
+ fpu_state_restore(regs);
}
diff --git a/arch/sh/kernel/cpu/sh2a/setup-mxg.c b/arch/sh/kernel/cpu/sh2a/setup-mxg.c
index b67376445315..8f669dc9b0da 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-mxg.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-mxg.c
@@ -207,27 +207,23 @@ static struct platform_device mtu2_2_device = {
.num_resources = ARRAY_SIZE(mtu2_2_resources),
};
-static struct plat_sci_port sci_platform_data[] = {
- {
- .mapbase = 0xff804000,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 220, 220, 220, 220 },
- }, {
- .flags = 0,
- }
+static struct plat_sci_port scif0_platform_data = {
+ .mapbase = 0xff804000,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 220, 220, 220, 220 },
};
-static struct platform_device sci_device = {
+static struct platform_device scif0_device = {
.name = "sh-sci",
- .id = -1,
+ .id = 0,
.dev = {
- .platform_data = sci_platform_data,
+ .platform_data = &scif0_platform_data,
},
};
static struct platform_device *mxg_devices[] __initdata = {
- &sci_device,
+ &scif0_device,
&mtu2_0_device,
&mtu2_1_device,
&mtu2_2_device,
@@ -246,6 +242,7 @@ void __init plat_irq_setup(void)
}
static struct platform_device *mxg_early_devices[] __initdata = {
+ &scif0_device,
&mtu2_0_device,
&mtu2_1_device,
&mtu2_2_device,
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7201.c b/arch/sh/kernel/cpu/sh2a/setup-sh7201.c
index fbde5b75deb9..4ccfeb59eb1a 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7201.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7201.c
@@ -177,57 +177,123 @@ static struct intc_mask_reg mask_registers[] __initdata = {
static DECLARE_INTC_DESC(intc_desc, "sh7201", vectors, groups,
mask_registers, prio_registers, NULL);
-static struct plat_sci_port sci_platform_data[] = {
- {
- .mapbase = 0xfffe8000,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 180, 180, 180, 180 }
- }, {
- .mapbase = 0xfffe8800,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 184, 184, 184, 184 }
- }, {
- .mapbase = 0xfffe9000,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 188, 188, 188, 188 }
- }, {
- .mapbase = 0xfffe9800,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 192, 192, 192, 192 }
- }, {
- .mapbase = 0xfffea000,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 196, 196, 196, 196 }
- }, {
- .mapbase = 0xfffea800,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 200, 200, 200, 200 }
- }, {
- .mapbase = 0xfffeb000,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 204, 204, 204, 204 }
- }, {
- .mapbase = 0xfffeb800,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 208, 208, 208, 208 }
- }, {
- .flags = 0,
- }
-};
-
-static struct platform_device sci_device = {
+static struct plat_sci_port scif0_platform_data = {
+ .mapbase = 0xfffe8000,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 180, 180, 180, 180 }
+};
+
+static struct platform_device scif0_device = {
.name = "sh-sci",
- .id = -1,
+ .id = 0,
+ .dev = {
+ .platform_data = &scif0_platform_data,
+ },
+};
+
+static struct plat_sci_port scif1_platform_data = {
+ .mapbase = 0xfffe8800,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 184, 184, 184, 184 }
+};
+
+static struct platform_device scif1_device = {
+ .name = "sh-sci",
+ .id = 1,
+ .dev = {
+ .platform_data = &scif1_platform_data,
+ },
+};
+
+static struct plat_sci_port scif2_platform_data = {
+ .mapbase = 0xfffe9000,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 188, 188, 188, 188 }
+};
+
+static struct platform_device scif2_device = {
+ .name = "sh-sci",
+ .id = 2,
+ .dev = {
+ .platform_data = &scif2_platform_data,
+ },
+};
+
+static struct plat_sci_port scif3_platform_data = {
+ .mapbase = 0xfffe9800,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 192, 192, 192, 192 }
+};
+
+static struct platform_device scif3_device = {
+ .name = "sh-sci",
+ .id = 3,
+ .dev = {
+ .platform_data = &scif3_platform_data,
+ },
+};
+
+static struct plat_sci_port scif4_platform_data = {
+ .mapbase = 0xfffea000,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 196, 196, 196, 196 }
+};
+
+static struct platform_device scif4_device = {
+ .name = "sh-sci",
+ .id = 4,
+ .dev = {
+ .platform_data = &scif4_platform_data,
+ },
+};
+
+static struct plat_sci_port scif5_platform_data = {
+ .mapbase = 0xfffea800,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 200, 200, 200, 200 }
+};
+
+static struct platform_device scif5_device = {
+ .name = "sh-sci",
+ .id = 5,
+ .dev = {
+ .platform_data = &scif5_platform_data,
+ },
+};
+
+static struct plat_sci_port scif6_platform_data = {
+ .mapbase = 0xfffeb000,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 204, 204, 204, 204 }
+};
+
+static struct platform_device scif6_device = {
+ .name = "sh-sci",
+ .id = 6,
+ .dev = {
+ .platform_data = &scif6_platform_data,
+ },
+};
+
+static struct plat_sci_port scif7_platform_data = {
+ .mapbase = 0xfffeb800,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 208, 208, 208, 208 }
+};
+
+static struct platform_device scif7_device = {
+ .name = "sh-sci",
+ .id = 7,
.dev = {
- .platform_data = sci_platform_data,
+ .platform_data = &scif7_platform_data,
},
};
@@ -345,7 +411,14 @@ static struct platform_device mtu2_2_device = {
};
static struct platform_device *sh7201_devices[] __initdata = {
- &sci_device,
+ &scif0_device,
+ &scif1_device,
+ &scif2_device,
+ &scif3_device,
+ &scif4_device,
+ &scif5_device,
+ &scif6_device,
+ &scif7_device,
&rtc_device,
&mtu2_0_device,
&mtu2_1_device,
@@ -365,6 +438,14 @@ void __init plat_irq_setup(void)
}
static struct platform_device *sh7201_early_devices[] __initdata = {
+ &scif0_device,
+ &scif1_device,
+ &scif2_device,
+ &scif3_device,
+ &scif4_device,
+ &scif5_device,
+ &scif6_device,
+ &scif7_device,
&mtu2_0_device,
&mtu2_1_device,
&mtu2_2_device,
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
index d3fd536c9a84..3136966cc9b3 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
@@ -173,37 +173,63 @@ static struct intc_mask_reg mask_registers[] __initdata = {
static DECLARE_INTC_DESC(intc_desc, "sh7203", vectors, groups,
mask_registers, prio_registers, NULL);
-static struct plat_sci_port sci_platform_data[] = {
- {
- .mapbase = 0xfffe8000,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 192, 192, 192, 192 },
- }, {
- .mapbase = 0xfffe8800,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 196, 196, 196, 196 },
- }, {
- .mapbase = 0xfffe9000,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 200, 200, 200, 200 },
- }, {
- .mapbase = 0xfffe9800,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 204, 204, 204, 204 },
- }, {
- .flags = 0,
- }
+static struct plat_sci_port scif0_platform_data = {
+ .mapbase = 0xfffe8000,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 192, 192, 192, 192 },
};
-static struct platform_device sci_device = {
+static struct platform_device scif0_device = {
.name = "sh-sci",
- .id = -1,
+ .id = 0,
+ .dev = {
+ .platform_data = &scif0_platform_data,
+ },
+};
+
+static struct plat_sci_port scif1_platform_data = {
+ .mapbase = 0xfffe8800,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 196, 196, 196, 196 },
+};
+
+static struct platform_device scif1_device = {
+ .name = "sh-sci",
+ .id = 1,
+ .dev = {
+ .platform_data = &scif1_platform_data,
+ },
+};
+
+static struct plat_sci_port scif2_platform_data = {
+ .mapbase = 0xfffe9000,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 200, 200, 200, 200 },
+};
+
+static struct platform_device scif2_device = {
+ .name = "sh-sci",
+ .id = 2,
+ .dev = {
+ .platform_data = &scif2_platform_data,
+ },
+};
+
+static struct plat_sci_port scif3_platform_data = {
+ .mapbase = 0xfffe9800,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 204, 204, 204, 204 },
+};
+
+static struct platform_device scif3_device = {
+ .name = "sh-sci",
+ .id = 3,
.dev = {
- .platform_data = sci_platform_data,
+ .platform_data = &scif3_platform_data,
},
};
@@ -354,7 +380,10 @@ static struct platform_device rtc_device = {
};
static struct platform_device *sh7203_devices[] __initdata = {
- &sci_device,
+ &scif0_device,
+ &scif1_device,
+ &scif2_device,
+ &scif3_device,
&cmt0_device,
&cmt1_device,
&mtu2_0_device,
@@ -375,6 +404,10 @@ void __init plat_irq_setup(void)
}
static struct platform_device *sh7203_early_devices[] __initdata = {
+ &scif0_device,
+ &scif1_device,
+ &scif2_device,
+ &scif3_device,
&cmt0_device,
&cmt1_device,
&mtu2_0_device,
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
index a9ccc5e8d9e9..064873585a8b 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
@@ -133,37 +133,63 @@ static struct intc_mask_reg mask_registers[] __initdata = {
static DECLARE_INTC_DESC(intc_desc, "sh7206", vectors, groups,
mask_registers, prio_registers, NULL);
-static struct plat_sci_port sci_platform_data[] = {
- {
- .mapbase = 0xfffe8000,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 240, 240, 240, 240 },
- }, {
- .mapbase = 0xfffe8800,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 244, 244, 244, 244 },
- }, {
- .mapbase = 0xfffe9000,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 248, 248, 248, 248 },
- }, {
- .mapbase = 0xfffe9800,
- .flags = UPF_BOOT_AUTOCONF,
- .type = PORT_SCIF,
- .irqs = { 252, 252, 252, 252 },
- }, {
- .flags = 0,
- }
+static struct plat_sci_port scif0_platform_data = {
+ .mapbase = 0xfffe8000,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 240, 240, 240, 240 },
};
-static struct platform_device sci_device = {
+static struct platform_device scif0_device = {
.name = "sh-sci",
- .id = -1,
+ .id = 0,
+ .dev = {
+ .platform_data = &scif0_platform_data,
+ },
+};
+
+static struct plat_sci_port scif1_platform_data = {
+ .mapbase = 0xfffe8800,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 244, 244, 244, 244 },
+};
+
+static struct platform_device scif1_device = {
+ .name = "sh-sci",
+ .id = 1,
+ .dev = {
+ .platform_data = &scif1_platform_data,
+ },
+};
+
+static struct plat_sci_port scif2_platform_data = {
+ .mapbase = 0xfffe9000,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 248, 248, 248, 248 },
+};
+
+static struct platform_device scif2_device = {
+ .name = "sh-sci",
+ .id = 2,
+ .dev = {
+ .platform_data = &scif2_platform_data,
+ },
+};
+
+static struct plat_sci_port scif3_platform_data = {
+ .mapbase = 0xfffe9800,
+ .flags = UPF_BOOT_AUTOCONF,
+ .type = PORT_SCIF,
+ .irqs = { 252, 252, 252, 252 },
+};
+
+static struct platform_device scif3_device = {
+ .name = "sh-sci",
+ .id = 3,
.dev = {
- .platform_data = sci_platform_data,
+ .platform_data = &scif3_platform_data,
},
};
@@ -325,7 +351,10 @@ static struct platform_device mtu2_2_device = {
};
static struct platform_device *sh7206_devices[] __initdata = {
- &sci_device,
+ &scif0_device,
+ &scif1_device,
+ &scif2_device,
+ &scif3_device,
&cmt0_device,
&cmt1_device,
&mtu2_0_device,
@@ -346,6 +375,10 @@ void __init plat_irq_setup(void)
}
static struct platform_device *sh7206_early_devices[] __initdata = {
+ &scif0_device,
+ &scif1_device,
+ &scif2_device,
+ &scif3_device,
&cmt0_device,
&cmt1_device,
&mtu2_0_device,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.