Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze

Pull microblaze updates from Michal Simek.

* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Enable IRQ in arch_cpu_idle
  microblaze: Fix uaccess_ok macro
  microblaze: Add support for new cpu versions and target architecture
  microblaze: Do not select OPT_LIB_ASM by default
  microblaze: Fix initrd support
  microblaze: Do not use r6 in head.S
  microblaze: pci: Remove duplicated header
  microblaze: Set the default irq_domain
  microblaze: pci: Remove duplicated include from pci-common.c

arch/microblaze/configs/mmu_defconfig

@@ -17,7 +17,6 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_PARTITION_ADVANCED=y
 # CONFIG_EFI_PARTITION is not set
-CONFIG_OPT_LIB_ASM=y
 CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR=1
 CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR=1
 CONFIG_XILINX_MICROBLAZE0_USE_BARREL=1

arch/microblaze/include/asm/pci.h

@@ -153,7 +153,5 @@ extern void __init xilinx_pci_init(void);
 static inline void __init xilinx_pci_init(void) { return; }
 #endif
 
-#include <asm-generic/pci-dma-compat.h>
-
 #endif	/* __KERNEL__ */
 #endif /* __ASM_MICROBLAZE_PCI_H */

arch/microblaze/include/asm/uaccess.h

@@ -90,17 +90,25 @@ static inline int ___range_ok(unsigned long addr, unsigned long size)
 
 #else
 
-/*
- * Address is valid if:
- *  - "addr", "addr + size" and "size" are all below the limit
- */
-#define access_ok(type, addr, size) \
-	(get_fs().seg >= (((unsigned long)(addr)) | \
-		(size) | ((unsigned long)(addr) + (size))))
-
-/* || printk("access_ok failed for %s at 0x%08lx (size %d), seg 0x%08x\n",
- type?"WRITE":"READ",addr,size,get_fs().seg)) */
-
+static inline int access_ok(int type, const void __user *addr,
+							unsigned long size)
+{
+	if (!size)
+		goto ok;
+
+	if ((get_fs().seg < ((unsigned long)addr)) ||
+			(get_fs().seg < ((unsigned long)addr + size - 1))) {
+		pr_debug("ACCESS fail: %s at 0x%08x (size 0x%x), seg 0x%08x\n",
+			type ? "WRITE" : "READ ", (u32)addr, (u32)size,
+			(u32)get_fs().seg);
+		return 0;
+	}
+ok:
+	pr_debug("ACCESS OK: %s at 0x%08x (size 0x%x), seg 0x%08x\n",
+			type ? "WRITE" : "READ ", (u32)addr, (u32)size,
+			(u32)get_fs().seg);
+	return 1;
+}
 #endif
 
 #ifdef CONFIG_MMU

arch/microblaze/kernel/cpu/cpuinfo.c

@@ -37,6 +37,8 @@ const struct cpu_ver_key cpu_ver_lookup[] = {
 	{"8.20.a", 0x15},
 	{"8.20.b", 0x16},
 	{"8.30.a", 0x17},
+	{"8.40.a", 0x18},
+	{"8.40.b", 0x19},
 	{NULL, 0},
 };
 
@@ -57,6 +59,9 @@ const struct family_string_key family_string_lookup[] = {
 	{"virtex6", 0xe},
 	/* FIXME There is no key code defined for spartan2 */
 	{"spartan2", 0xf0},
+	{"kintex7", 0x10},
+	{"artix7", 0x11},
+	{"zynq7000", 0x12},
 	{NULL, 0},
 };
 

arch/microblaze/kernel/head.S

@@ -112,16 +112,16 @@ no_fdt_arg:
  * copy command line directly to cmd_line placed in data section.
  */
 	beqid	r5, skip	/* Skip if NULL pointer */
-	or	r6, r0, r0		/* incremment */
+	or	r11, r0, r0		/* incremment */
 	ori	r4, r0, cmd_line	/* load address of command line */
 	tophys(r4,r4)			/* convert to phys address */
 	ori	r3, r0, COMMAND_LINE_SIZE - 1 /* number of loops */
 _copy_command_line:
 	/* r2=r5+r6 - r5 contain pointer to command line */
-	lbu		r2, r5, r6
+	lbu	r2, r5, r11
 	beqid	r2, skip		/* Skip if no data */
-	sb		r2, r4, r6		/* addr[r4+r6]= r2*/
-	addik	r6, r6, 1		/* increment counting */
+	sb	r2, r4, r11		/* addr[r4+r6]= r2 */
+	addik	r11, r11, 1		/* increment counting */
 	bgtid	r3, _copy_command_line	/* loop for all entries       */
 	addik	r3, r3, -1		/* decrement loop */
 	addik	r5, r4, 0		/* add new space for command line */
@@ -131,13 +131,13 @@ skip:
 
 #ifdef NOT_COMPILE
 /* save bram context */
-	or	r6, r0, r0				/* incremment */
+	or	r11, r0, r0				/* incremment */
 	ori	r4, r0, TOPHYS(_bram_load_start)	/* save bram context */
 	ori	r3, r0, (LMB_SIZE - 4)
 _copy_bram:
-	lw	r7, r0, r6		/* r7 = r0 + r6 */
-	sw	r7, r4, r6		/* addr[r4 + r6] = r7*/
-	addik	r6, r6, 4		/* increment counting */
+	lw	r7, r0, r11		/* r7 = r0 + r6 */
+	sw	r7, r4, r11		/* addr[r4 + r6] = r7 */
+	addik	r11, r11, 4		/* increment counting */
 	bgtid	r3, _copy_bram		/* loop for all entries */
 	addik	r3, r3, -4		/* descrement loop */
 #endif
@@ -303,8 +303,8 @@ jump_over2:
 	 * the exception vectors, using a 4k real==virtual mapping.
 	 */
 	/* Use temporary TLB_ID for LMB - clear this temporary mapping later */
-	ori	r6, r0, MICROBLAZE_LMB_TLB_ID
-	mts     rtlbx,r6
+	ori	r11, r0, MICROBLAZE_LMB_TLB_ID
+	mts     rtlbx,r11
 
 	ori	r4,r0,(TLB_WR | TLB_EX)
 	ori	r3,r0,(TLB_VALID | TLB_PAGESZ(PAGESZ_4K))

arch/microblaze/kernel/intc.c

@@ -172,4 +172,6 @@ void __init init_IRQ(void)
 	 * and commits this patch.  ~~gcl */
 	root_domain = irq_domain_add_linear(intc, nr_irq, &xintc_irq_domain_ops,
 							(void *)intr_mask);
+
+	irq_set_default_host(root_domain);
 }

arch/microblaze/kernel/process.c

@@ -160,3 +160,8 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpregs)
 	return 0; /* MicroBlaze has no separate FPU registers */
 }
 #endif /* CONFIG_MMU */
+
+void arch_cpu_idle(void)
+{
+       local_irq_enable();
+}

arch/microblaze/mm/init.c

@@ -404,10 +404,11 @@ asmlinkage void __init mmu_init(void)
 
 #if defined(CONFIG_BLK_DEV_INITRD)
 	/* Remove the init RAM disk from the available memory. */
-/*	if (initrd_start) {
-		mem_pieces_remove(&phys_avail, __pa(initrd_start),
-				  initrd_end - initrd_start, 1);
-	}*/
+	if (initrd_start) {
+		unsigned long size;
+		size = initrd_end - initrd_start;
+		memblock_reserve(virt_to_phys(initrd_start), size);
+	}
 #endif /* CONFIG_BLK_DEV_INITRD */
 
 	/* Initialize the MMU hardware */

arch/microblaze/pci/pci-common.c

@@ -30,7 +30,6 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_pci.h>
-#include <linux/pci.h>
 #include <linux/export.h>
 
 #include <asm/processor.h>