Merging upstream version 6.9.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

6 files changed, 25 insertions, 72 deletions

diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index fd9bb76a6..3586cda55 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -25,6 +25,7 @@ config OPENRISC
 	select GENERIC_CPU_DEVICES
 	select HAVE_PCI
 	select HAVE_UID16
+	select HAVE_PAGE_SIZE_8KB
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS_BROADCAST
 	select GENERIC_SMP_IDLE_THREAD
diff --git a/arch/openrisc/include/asm/fixmap.h b/arch/openrisc/include/asm/fixmap.h
index ad78e50b7..ecdb98a58 100644
--- a/arch/openrisc/include/asm/fixmap.h
+++ b/arch/openrisc/include/asm/fixmap.h
@@ -50,35 +50,6 @@ enum fixed_addresses {
 /* FIXADDR_BOTTOM might be a better name here... */
 #define FIXADDR_START		(FIXADDR_TOP - FIXADDR_SIZE)
 
-#define __fix_to_virt(x)	(FIXADDR_TOP - ((x) << PAGE_SHIFT))
-#define __virt_to_fix(x)	((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
-
-/*
- * 'index to address' translation. If anyone tries to use the idx
- * directly without tranlation, we catch the bug with a NULL-deference
- * kernel oops. Illegal ranges of incoming indices are caught too.
- */
-static __always_inline unsigned long fix_to_virt(const unsigned int idx)
-{
-	/*
-	 * this branch gets completely eliminated after inlining,
-	 * except when someone tries to use fixaddr indices in an
-	 * illegal way. (such as mixing up address types or using
-	 * out-of-range indices).
-	 *
-	 * If it doesn't get removed, the linker will complain
-	 * loudly with a reasonably clear error message..
-	 */
-	if (idx >= __end_of_fixed_addresses)
-		BUG();
-
-	return __fix_to_virt(idx);
-}
-
-static inline unsigned long virt_to_fix(const unsigned long vaddr)
-{
-	BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
-	return __virt_to_fix(vaddr);
-}
+#include <asm-generic/fixmap.h>
 
 #endif
diff --git a/arch/openrisc/include/asm/page.h b/arch/openrisc/include/asm/page.h
index 44fc1fd56..1d5913f67 100644
--- a/arch/openrisc/include/asm/page.h
+++ b/arch/openrisc/include/asm/page.h
@@ -18,7 +18,7 @@
 
 /* PAGE_SHIFT determines the page size */
 
-#define PAGE_SHIFT      13
+#define PAGE_SHIFT      CONFIG_PAGE_SHIFT
 #ifdef __ASSEMBLY__
 #define PAGE_SIZE       (1 << PAGE_SHIFT)
 #else
@@ -77,11 +77,6 @@ static inline unsigned long virt_to_pfn(const void *kaddr)
 	return __pa(kaddr) >> PAGE_SHIFT;
 }
 
-static inline void * pfn_to_virt(unsigned long pfn)
-{
-	return (void *)((unsigned long)__va(pfn) << PAGE_SHIFT);
-}
-
 #define virt_to_page(addr) \
 	(mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT))
 
diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c
index 9cf7fb604..be56eaafc 100644
--- a/arch/openrisc/kernel/setup.c
+++ b/arch/openrisc/kernel/setup.c
@@ -255,6 +255,9 @@ void calibrate_delay(void)
 
 void __init setup_arch(char **cmdline_p)
 {
+	/* setup memblock allocator */
+	setup_memory();
+
 	unflatten_and_copy_device_tree();
 
 	setup_cpuinfo();
@@ -278,9 +281,6 @@ void __init setup_arch(char **cmdline_p)
 	}
 #endif
 
-	/* setup memblock allocator */
-	setup_memory();
-
 	/* paging_init() sets up the MMU and marks all pages as reserved */
 	paging_init();
 
diff --git a/arch/openrisc/kernel/smp.c b/arch/openrisc/kernel/smp.c
index 1c5a2d71d..86da4bc5e 100644
--- a/arch/openrisc/kernel/smp.c
+++ b/arch/openrisc/kernel/smp.c
@@ -57,10 +57,6 @@ static void boot_secondary(unsigned int cpu, struct task_struct *idle)
 	spin_unlock(&boot_lock);
 }
 
-void __init smp_prepare_boot_cpu(void)
-{
-}
-
 void __init smp_init_cpus(void)
 {
 	struct device_node *cpu;
diff --git a/arch/openrisc/kernel/traps.c b/arch/openrisc/kernel/traps.c
index 90554a555..9370888c9 100644
--- a/arch/openrisc/kernel/traps.c
+++ b/arch/openrisc/kernel/traps.c
@@ -180,39 +180,29 @@ asmlinkage void unhandled_exception(struct pt_regs *regs, int ea, int vector)
 
 asmlinkage void do_fpe_trap(struct pt_regs *regs, unsigned long address)
 {
-	if (user_mode(regs)) {
-		int code = FPE_FLTUNK;
-		unsigned long fpcsr = regs->fpcsr;
-
-		if (fpcsr & SPR_FPCSR_IVF)
-			code = FPE_FLTINV;
-		else if (fpcsr & SPR_FPCSR_OVF)
-			code = FPE_FLTOVF;
-		else if (fpcsr & SPR_FPCSR_UNF)
-			code = FPE_FLTUND;
-		else if (fpcsr & SPR_FPCSR_DZF)
-			code = FPE_FLTDIV;
-		else if (fpcsr & SPR_FPCSR_IXF)
-			code = FPE_FLTRES;
-
-		/* Clear all flags */
-		regs->fpcsr &= ~SPR_FPCSR_ALLF;
-
-		force_sig_fault(SIGFPE, code, (void __user *)regs->pc);
-	} else {
-		pr_emerg("KERNEL: Illegal fpe exception 0x%.8lx\n", regs->pc);
-		die("Die:", regs, SIGFPE);
-	}
+	int code = FPE_FLTUNK;
+	unsigned long fpcsr = regs->fpcsr;
+
+	if (fpcsr & SPR_FPCSR_IVF)
+		code = FPE_FLTINV;
+	else if (fpcsr & SPR_FPCSR_OVF)
+		code = FPE_FLTOVF;
+	else if (fpcsr & SPR_FPCSR_UNF)
+		code = FPE_FLTUND;
+	else if (fpcsr & SPR_FPCSR_DZF)
+		code = FPE_FLTDIV;
+	else if (fpcsr & SPR_FPCSR_IXF)
+		code = FPE_FLTRES;
+
+	/* Clear all flags */
+	regs->fpcsr &= ~SPR_FPCSR_ALLF;
+
+	force_sig_fault(SIGFPE, code, (void __user *)regs->pc);
 }
 
 asmlinkage void do_trap(struct pt_regs *regs, unsigned long address)
 {
-	if (user_mode(regs)) {
-		force_sig_fault(SIGTRAP, TRAP_BRKPT, (void __user *)regs->pc);
-	} else {
-		pr_emerg("KERNEL: Illegal trap exception 0x%.8lx\n", regs->pc);
-		die("Die:", regs, SIGILL);
-	}
+	force_sig_fault(SIGTRAP, TRAP_BRKPT, (void __user *)regs->pc);
 }
 
 asmlinkage void do_unaligned_access(struct pt_regs *regs, unsigned long address)