diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 09407ed1aacd..4860efa91d7b 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -36,7 +36,6 @@ config PARISC
 	select GENERIC_STRNCPY_FROM_USER
 	select SYSCTL_ARCH_UNALIGN_ALLOW
 	select SYSCTL_EXCEPTION_TRACE
-	select ARCH_DISCARD_MEMBLOCK
 	select HAVE_MOD_ARCH_SPECIFIC
 	select VIRT_TO_BUS
 	select MODULES_USE_ELF_RELA
@@ -195,7 +194,8 @@ config PREFETCH
 
 config MLONGCALLS
 	bool "Enable the -mlong-calls compiler option for big kernels"
-	default y
+	default y if !MODULES || UBSAN || FTRACE
+	default n
 	depends on PA8X00
 	help
 	  If you configure the kernel to include many drivers built-in instead
diff --git a/arch/parisc/configs/712_defconfig b/arch/parisc/configs/712_defconfig
index ccc109761f44..d3e3d94e90c3 100644
--- a/arch/parisc/configs/712_defconfig
+++ b/arch/parisc/configs/712_defconfig
@@ -34,7 +34,6 @@ CONFIG_INET_DIAG=m
 CONFIG_NETFILTER=y
 CONFIG_LLC2=m
 CONFIG_NET_PKTGEN=m
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_STANDALONE is not set
diff --git a/arch/parisc/configs/a500_defconfig b/arch/parisc/configs/a500_defconfig
index 5acb93dcaabf..a8859496b0b9 100644
--- a/arch/parisc/configs/a500_defconfig
+++ b/arch/parisc/configs/a500_defconfig
@@ -70,7 +70,6 @@ CONFIG_IP_DCCP=m
 # CONFIG_IP_DCCP_CCID3 is not set
 CONFIG_LLC2=m
 CONFIG_NET_PKTGEN=m
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_STANDALONE is not set
diff --git a/arch/parisc/configs/b180_defconfig b/arch/parisc/configs/b180_defconfig
index 83ffd161aec5..0cae9664bf67 100644
--- a/arch/parisc/configs/b180_defconfig
+++ b/arch/parisc/configs/b180_defconfig
@@ -24,7 +24,6 @@ CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 CONFIG_IP_PNP=y
 CONFIG_IP_PNP_BOOTP=y
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig
index 8d41a73bd71b..6c29b841735c 100644
--- a/arch/parisc/configs/c3000_defconfig
+++ b/arch/parisc/configs/c3000_defconfig
@@ -32,7 +32,6 @@ CONFIG_INET6_IPCOMP=m
 CONFIG_IPV6_TUNNEL=m
 CONFIG_NETFILTER=y
 CONFIG_NET_PKTGEN=m
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_STANDALONE is not set
diff --git a/arch/parisc/configs/c8000_defconfig b/arch/parisc/configs/c8000_defconfig
index 900b00084953..507f0644fcf8 100644
--- a/arch/parisc/configs/c8000_defconfig
+++ b/arch/parisc/configs/c8000_defconfig
@@ -57,7 +57,6 @@ CONFIG_IP_DCCP=m
 CONFIG_TIPC=m
 CONFIG_LLC2=m
 CONFIG_DNS_RESOLVER=y
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_STANDALONE is not set
diff --git a/arch/parisc/configs/default_defconfig b/arch/parisc/configs/default_defconfig
index 52c9050a7c5c..6a91cc2623e8 100644
--- a/arch/parisc/configs/default_defconfig
+++ b/arch/parisc/configs/default_defconfig
@@ -44,7 +44,6 @@ CONFIG_INET6_AH=y
 CONFIG_INET6_ESP=y
 CONFIG_INET6_IPCOMP=y
 CONFIG_LLC2=m
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_STANDALONE is not set
diff --git a/arch/parisc/configs/generic-32bit_defconfig b/arch/parisc/configs/generic-32bit_defconfig
index a8f9bbef0975..18b072a47a10 100644
--- a/arch/parisc/configs/generic-32bit_defconfig
+++ b/arch/parisc/configs/generic-32bit_defconfig
@@ -47,7 +47,6 @@ CONFIG_INET_ESP=m
 CONFIG_INET_DIAG=m
 CONFIG_LLC2=m
 # CONFIG_WIRELESS is not set
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_STANDALONE is not set
diff --git a/arch/parisc/include/asm/special_insns.h b/arch/parisc/include/asm/special_insns.h
index 3d4dd68e181b..a303ae9a77f4 100644
--- a/arch/parisc/include/asm/special_insns.h
+++ b/arch/parisc/include/asm/special_insns.h
@@ -2,6 +2,30 @@
 #ifndef __PARISC_SPECIAL_INSNS_H
 #define __PARISC_SPECIAL_INSNS_H
 
+#define lpa(va)	({			\
+	unsigned long pa;		\
+	__asm__ __volatile__(		\
+		"copy %%r0,%0\n\t"	\
+		"lpa %%r0(%1),%0"	\
+		: "=r" (pa)		\
+		: "r" (va)		\
+		: "memory"		\
+	);				\
+	pa;				\
+})
+
+#define lpa_user(va)	({		\
+	unsigned long pa;		\
+	__asm__ __volatile__(		\
+		"copy %%r0,%0\n\t"	\
+		"lpa %%r0(%%sr3,%1),%0"	\
+		: "=r" (pa)		\
+		: "r" (va)		\
+		: "memory"		\
+	);				\
+	pa;				\
+})
+
 #define mfctl(reg)	({		\
 	unsigned long cr;		\
 	__asm__ __volatile__(		\
diff --git a/arch/parisc/kernel/alternative.c b/arch/parisc/kernel/alternative.c
index bf2274e01a96..ca1f5ca0540a 100644
--- a/arch/parisc/kernel/alternative.c
+++ b/arch/parisc/kernel/alternative.c
@@ -56,7 +56,8 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
 		 * time IO-PDIR is changed in Ike/Astro.
 		 */
 		if ((cond & ALT_COND_NO_IOC_FDC) &&
-			(boot_cpu_data.pdc.capabilities & PDC_MODEL_IOPDIR_FDC))
+			((boot_cpu_data.cpu_type <= pcxw_) ||
+			 (boot_cpu_data.pdc.capabilities & PDC_MODEL_IOPDIR_FDC)))
 			continue;
 
 		/* Want to replace pdtlb by a pdtlb,l instruction? */
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index c3b1b9c24ede..cd33b4feacb1 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -35,6 +35,15 @@ OUTPUT_FORMAT("elf64-hppa-linux")
 OUTPUT_ARCH(hppa:hppa2.0w)
 #endif
 
+#define EXIT_TEXT_SECTIONS()	.exit.text : { EXIT_TEXT }
+#if !defined(CONFIG_64BIT) || defined(CONFIG_MLONGCALLS)
+#define MLONGCALL_KEEP(x)
+#define MLONGCALL_DISCARD(x)	x
+#else
+#define MLONGCALL_KEEP(x)	x
+#define MLONGCALL_DISCARD(x)
+#endif
+
 ENTRY(parisc_kernel_start)
 #ifndef CONFIG_64BIT
 jiffies = jiffies_64 + 4;
@@ -47,15 +56,11 @@ SECTIONS
 
 	__init_begin = .;
 	HEAD_TEXT_SECTION
-	INIT_TEXT_SECTION(8)
+	MLONGCALL_DISCARD(INIT_TEXT_SECTION(8))
 
 	. = ALIGN(PAGE_SIZE);
 	INIT_DATA_SECTION(PAGE_SIZE)
-	/* we have to discard exit text and such at runtime, not link time */
-	.exit.text :
-	{
-		EXIT_TEXT
-	}
+	MLONGCALL_DISCARD(EXIT_TEXT_SECTIONS())
 	.exit.data :
 	{
 		EXIT_DATA
@@ -73,11 +78,12 @@ SECTIONS
 
 	_text = .;		/* Text and read-only data */
 	_stext = .;
+	MLONGCALL_KEEP(INIT_TEXT_SECTION(8))
 	.text ALIGN(PAGE_SIZE) : {
 		TEXT_TEXT
+		LOCK_TEXT
 		SCHED_TEXT
 		CPUIDLE_TEXT
-		LOCK_TEXT
 		KPROBES_TEXT
 		IRQENTRY_TEXT
 		SOFTIRQENTRY_TEXT
@@ -92,6 +98,7 @@ SECTIONS
 		*(.lock.text)		/* out-of-line lock text */
 		*(.gnu.warning)
 	}
+	MLONGCALL_KEEP(EXIT_TEXT_SECTIONS())
 	. = ALIGN(PAGE_SIZE);
 	_etext = .;
 	/* End of text section */
diff --git a/arch/parisc/math-emu/cnv_float.h b/arch/parisc/math-emu/cnv_float.h
index bfcd834f42d0..ef783a383c5a 100644
--- a/arch/parisc/math-emu/cnv_float.h
+++ b/arch/parisc/math-emu/cnv_float.h
@@ -47,19 +47,19 @@
     ((exponent < (SGL_P - 1)) ?				\
      (Sall(sgl_value) << (SGL_EXP_LENGTH + 1 + exponent)) : FALSE)
 
-#define Int_isinexact_to_sgl(int_value)	(int_value << 33 - SGL_EXP_LENGTH)
+#define Int_isinexact_to_sgl(int_value)	((int_value << 33 - SGL_EXP_LENGTH) != 0)
 
 #define Sgl_roundnearest_from_int(int_value,sgl_value)			\
     if (int_value & 1<<(SGL_EXP_LENGTH - 2))   /* round bit */		\
-    	if ((int_value << 34 - SGL_EXP_LENGTH) || Slow(sgl_value))	\
+	if (((int_value << 34 - SGL_EXP_LENGTH) != 0) || Slow(sgl_value)) \
 		Sall(sgl_value)++
 
 #define Dint_isinexact_to_sgl(dint_valueA,dint_valueB)		\
-    ((Dintp1(dint_valueA) << 33 - SGL_EXP_LENGTH) || Dintp2(dint_valueB))
+    (((Dintp1(dint_valueA) << 33 - SGL_EXP_LENGTH) != 0) || Dintp2(dint_valueB))
 
 #define Sgl_roundnearest_from_dint(dint_valueA,dint_valueB,sgl_value)	\
     if (Dintp1(dint_valueA) & 1<<(SGL_EXP_LENGTH - 2)) 			\
-    	if ((Dintp1(dint_valueA) << 34 - SGL_EXP_LENGTH) ||		\
+	if (((Dintp1(dint_valueA) << 34 - SGL_EXP_LENGTH) != 0) ||	\
     	Dintp2(dint_valueB) || Slow(sgl_value)) Sall(sgl_value)++
 
 #define Dint_isinexact_to_dbl(dint_value) 	\
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 121f7603a595..217f15aafa4a 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -562,14 +562,12 @@ ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
 	/* We currently only support kernel addresses */
 	BUG_ON(sid != KERNEL_SPACE);
 
-	mtsp(sid,1);
-
 	/*
 	** WORD 1 - low order word
 	** "hints" parm includes the VALID bit!
 	** "dep" clobbers the physical address offset bits as well.
 	*/
-	pa = virt_to_phys(vba);
+	pa = lpa(vba);
 	asm volatile("depw  %1,31,12,%0" : "+r" (pa) : "r" (hints));
 	((u32 *)pdir_ptr)[1] = (u32) pa;
 
@@ -594,7 +592,7 @@ ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
 	** Grab virtual index [0:11]
 	** Deposit virt_idx bits into I/O PDIR word
 	*/
-	asm volatile ("lci %%r0(%%sr1, %1), %0" : "=r" (ci) : "r" (vba));
+	asm volatile ("lci %%r0(%1), %0" : "=r" (ci) : "r" (vba));
 	asm volatile ("extru %1,19,12,%0" : "+r" (ci) : "r" (ci));
 	asm volatile ("depw  %1,15,12,%0" : "+r" (pa) : "r" (ci));
 
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 8a9ea9bd050c..296668caf7e5 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -569,11 +569,10 @@ sba_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
 	u64 pa; /* physical address */
 	register unsigned ci; /* coherent index */
 
-	pa = virt_to_phys(vba);
+	pa = lpa(vba);
 	pa &= IOVP_MASK;
 
-	mtsp(sid,1);
-	asm("lci 0(%%sr1, %1), %0" : "=r" (ci) : "r" (vba));
+	asm("lci 0(%1), %0" : "=r" (ci) : "r" (vba));
 	pa |= (ci >> PAGE_SHIFT) & 0xff;  /* move CI (8 bits) into lowest byte */
 
 	pa |= SBA_PDIR_VALID_BIT;	/* set "valid" bit */