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-rw-r--r--arch/hexagon/include/asm/Kbuild2
-rw-r--r--arch/hexagon/include/asm/atomic.h22
-rw-r--r--arch/hexagon/include/asm/elf.h23
-rw-r--r--arch/hexagon/include/asm/hexagon_vm.h56
-rw-r--r--arch/hexagon/include/asm/io.h16
-rw-r--r--arch/hexagon/include/asm/mem-layout.h28
-rw-r--r--arch/hexagon/include/asm/page.h12
-rw-r--r--arch/hexagon/include/asm/processor.h51
-rw-r--r--arch/hexagon/include/asm/vm_mmu.h11
9 files changed, 152 insertions, 69 deletions
diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
index bdb54ceb53bc..1da17caac23c 100644
--- a/arch/hexagon/include/asm/Kbuild
+++ b/arch/hexagon/include/asm/Kbuild
@@ -25,7 +25,6 @@ generic-y += kdebug.h
generic-y += kmap_types.h
generic-y += local64.h
generic-y += local.h
-generic-y += local.h
generic-y += mman.h
generic-y += msgbuf.h
generic-y += pci.h
@@ -41,6 +40,7 @@ generic-y += sembuf.h
generic-y += shmbuf.h
generic-y += shmparam.h
generic-y += siginfo.h
+generic-y += sizes.h
generic-y += socket.h
generic-y += sockios.h
generic-y += statfs.h
diff --git a/arch/hexagon/include/asm/atomic.h b/arch/hexagon/include/asm/atomic.h
index 468fbb0781cd..8a64ff2337f6 100644
--- a/arch/hexagon/include/asm/atomic.h
+++ b/arch/hexagon/include/asm/atomic.h
@@ -1,7 +1,7 @@
/*
* Atomic operations for the Hexagon architecture
*
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
*
*
* This program is free software; you can redistribute it and/or modify
@@ -117,35 +117,37 @@ static inline int atomic_sub_return(int i, atomic_t *v)
#define atomic_sub(i, v) atomic_sub_return(i, (v))
/**
- * atomic_add_unless - add unless the number is a given value
+ * __atomic_add_unless - add unless the number is a given value
* @v: pointer to value
* @a: amount to add
* @u: unless value is equal to u
*
- * Returns 1 if the add happened, 0 if it didn't.
+ * Returns old value.
+ *
*/
+
static inline int __atomic_add_unless(atomic_t *v, int a, int u)
{
- int output, __oldval;
+ int __oldval;
+ register int tmp;
+
asm volatile(
"1: %0 = memw_locked(%2);"
" {"
" p3 = cmp.eq(%0, %4);"
" if (p3.new) jump:nt 2f;"
- " %0 = add(%0, %3);"
- " %1 = #0;"
+ " %1 = add(%0, %3);"
" }"
- " memw_locked(%2, p3) = %0;"
+ " memw_locked(%2, p3) = %1;"
" {"
" if !p3 jump 1b;"
- " %1 = #1;"
" }"
"2:"
- : "=&r" (__oldval), "=&r" (output)
+ : "=&r" (__oldval), "=&r" (tmp)
: "r" (v), "r" (a), "r" (u)
: "memory", "p3"
);
- return output;
+ return __oldval;
}
#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
diff --git a/arch/hexagon/include/asm/elf.h b/arch/hexagon/include/asm/elf.h
index 1f14e082588e..e1b933a0e121 100644
--- a/arch/hexagon/include/asm/elf.h
+++ b/arch/hexagon/include/asm/elf.h
@@ -1,7 +1,7 @@
/*
* ELF definitions for the Hexagon architecture
*
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2010-2012, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -104,6 +104,16 @@ typedef unsigned long elf_fpregset_t;
* Bypass the whole "regsets" thing for now and use the define.
*/
+#if CONFIG_HEXAGON_ARCH_VERSION >= 4
+#define CS_COPYREGS(DEST,REGS) \
+do {\
+ DEST.cs0 = REGS->cs0;\
+ DEST.cs1 = REGS->cs1;\
+} while (0)
+#else
+#define CS_COPYREGS(DEST,REGS)
+#endif
+
#define ELF_CORE_COPY_REGS(DEST, REGS) \
do { \
DEST.r0 = REGS->r00; \
@@ -148,13 +158,12 @@ do { \
DEST.p3_0 = REGS->preds; \
DEST.gp = REGS->gp; \
DEST.ugp = REGS->ugp; \
- DEST.pc = pt_elr(REGS); \
+ CS_COPYREGS(DEST,REGS); \
+ DEST.pc = pt_elr(REGS); \
DEST.cause = pt_cause(REGS); \
DEST.badva = pt_badva(REGS); \
} while (0);
-
-
/*
* This is used to ensure we don't load something for the wrong architecture.
* Checks the machine and ABI type.
@@ -168,15 +177,15 @@ do { \
#define ELF_DATA ELFDATA2LSB
#define ELF_ARCH EM_HEXAGON
-#ifdef CONFIG_HEXAGON_ARCH_V2
+#if CONFIG_HEXAGON_ARCH_VERSION == 2
#define ELF_CORE_EFLAGS 0x1
#endif
-#ifdef CONFIG_HEXAGON_ARCH_V3
+#if CONFIG_HEXAGON_ARCH_VERSION == 3
#define ELF_CORE_EFLAGS 0x2
#endif
-#ifdef CONFIG_HEXAGON_ARCH_V4
+#if CONFIG_HEXAGON_ARCH_VERSION == 4
#define ELF_CORE_EFLAGS 0x3
#endif
diff --git a/arch/hexagon/include/asm/hexagon_vm.h b/arch/hexagon/include/asm/hexagon_vm.h
index c144bee6cabe..67bb6d6f3337 100644
--- a/arch/hexagon/include/asm/hexagon_vm.h
+++ b/arch/hexagon/include/asm/hexagon_vm.h
@@ -1,7 +1,7 @@
/*
* Declarations for to Hexagon Virtal Machine.
*
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -31,10 +31,26 @@
* for tracing/debugging.
*/
-/*
- * Lets make this stuff visible only if configured,
- * so we can unconditionally include the file.
- */
+#define HVM_TRAP1_VMVERSION 0
+#define HVM_TRAP1_VMRTE 1
+#define HVM_TRAP1_VMSETVEC 2
+#define HVM_TRAP1_VMSETIE 3
+#define HVM_TRAP1_VMGETIE 4
+#define HVM_TRAP1_VMINTOP 5
+#define HVM_TRAP1_VMCLRMAP 10
+#define HVM_TRAP1_VMNEWMAP 11
+#define HVM_TRAP1_FORMERLY_VMWIRE 12
+#define HVM_TRAP1_VMCACHE 13
+#define HVM_TRAP1_VMGETTIME 14
+#define HVM_TRAP1_VMSETTIME 15
+#define HVM_TRAP1_VMWAIT 16
+#define HVM_TRAP1_VMYIELD 17
+#define HVM_TRAP1_VMSTART 18
+#define HVM_TRAP1_VMSTOP 19
+#define HVM_TRAP1_VMVPID 20
+#define HVM_TRAP1_VMSETREGS 21
+#define HVM_TRAP1_VMGETREGS 22
+#define HVM_TRAP1_VMTIMEROP 24
#ifndef __ASSEMBLY__
@@ -175,31 +191,19 @@ static inline long __vmintop_clear(long i)
#else /* Only assembly code should reference these */
-#define HVM_TRAP1_VMRTE 1
-#define HVM_TRAP1_VMSETVEC 2
-#define HVM_TRAP1_VMSETIE 3
-#define HVM_TRAP1_VMGETIE 4
-#define HVM_TRAP1_VMINTOP 5
-#define HVM_TRAP1_VMCLRMAP 10
-#define HVM_TRAP1_VMNEWMAP 11
-#define HVM_TRAP1_FORMERLY_VMWIRE 12
-#define HVM_TRAP1_VMCACHE 13
-#define HVM_TRAP1_VMGETTIME 14
-#define HVM_TRAP1_VMSETTIME 15
-#define HVM_TRAP1_VMWAIT 16
-#define HVM_TRAP1_VMYIELD 17
-#define HVM_TRAP1_VMSTART 18
-#define HVM_TRAP1_VMSTOP 19
-#define HVM_TRAP1_VMVPID 20
-#define HVM_TRAP1_VMSETREGS 21
-#define HVM_TRAP1_VMGETREGS 22
-
#endif /* __ASSEMBLY__ */
/*
* Constants for virtual instruction parameters and return values
*/
+/* vmnewmap arguments */
+
+#define VM_TRANS_TYPE_LINEAR 0
+#define VM_TRANS_TYPE_TABLE 1
+#define VM_TLB_INVALIDATE_FALSE 0
+#define VM_TLB_INVALIDATE_TRUE 1
+
/* vmsetie arguments */
#define VM_INT_DISABLE 0
@@ -224,6 +228,8 @@ static inline long __vmintop_clear(long i)
#define HVM_VMEST_UM_MSK 1
#define HVM_VMEST_IE_SFT 30
#define HVM_VMEST_IE_MSK 1
+#define HVM_VMEST_SS_SFT 29
+#define HVM_VMEST_SS_MSK 1
#define HVM_VMEST_EVENTNUM_SFT 16
#define HVM_VMEST_EVENTNUM_MSK 0xff
#define HVM_VMEST_CAUSE_SFT 0
@@ -260,6 +266,8 @@ static inline long __vmintop_clear(long i)
#define HVM_GE_C_INVI 0x15
#define HVM_GE_C_PRIVI 0x1B
#define HVM_GE_C_XMAL 0x1C
+#define HVM_GE_C_WREG 0x1D
+#define HVM_GE_C_PCAL 0x1E
#define HVM_GE_C_RMAL 0x20
#define HVM_GE_C_WMAL 0x21
#define HVM_GE_C_RPROT 0x22
diff --git a/arch/hexagon/include/asm/io.h b/arch/hexagon/include/asm/io.h
index e527cfeff5ba..1b7698e19139 100644
--- a/arch/hexagon/include/asm/io.h
+++ b/arch/hexagon/include/asm/io.h
@@ -1,7 +1,7 @@
/*
* IO definitions for the Hexagon architecture
*
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -40,6 +40,8 @@
#define IO_SPACE_LIMIT 0xffff
#define _IO_BASE ((void __iomem *)0xfe000000)
+#define IOMEM(x) ((void __force __iomem *)(x))
+
extern int remap_area_pages(unsigned long start, unsigned long phys_addr,
unsigned long end, unsigned long flags);
@@ -176,6 +178,18 @@ static inline void writel(u32 data, volatile void __iomem *addr)
#define __raw_readl readl
/*
+ * http://comments.gmane.org/gmane.linux.ports.arm.kernel/117626
+ */
+
+#define readb_relaxed __raw_readb
+#define readw_relaxed __raw_readw
+#define readl_relaxed __raw_readl
+
+#define writeb_relaxed __raw_writeb
+#define writew_relaxed __raw_writew
+#define writel_relaxed __raw_writel
+
+/*
* Need an mtype somewhere in here, for cache type deals?
* This is probably too long for an inline.
*/
diff --git a/arch/hexagon/include/asm/mem-layout.h b/arch/hexagon/include/asm/mem-layout.h
index af16e977c55e..60556f8c45d8 100644
--- a/arch/hexagon/include/asm/mem-layout.h
+++ b/arch/hexagon/include/asm/mem-layout.h
@@ -1,7 +1,7 @@
/*
* Memory layout definitions for the Hexagon architecture
*
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -32,16 +32,25 @@
#define PAGE_OFFSET _AC(0xc0000000, UL)
/*
- * LOAD_ADDRESS is the physical/linear address of where in memory
- * the kernel gets loaded. The 12 least significant bits must be zero (0)
- * due to limitations on setting the EVB
- *
+ * Compiling for a platform that needs a crazy physical offset
+ * (like if the memory starts at 1GB and up) means we need
+ * an actual PHYS_OFFSET. Should be set up in head.S.
*/
-#ifndef LOAD_ADDRESS
-#define LOAD_ADDRESS 0x00000000
+#ifdef CONFIG_HEXAGON_PHYS_OFFSET
+#ifndef __ASSEMBLY__
+extern unsigned long __phys_offset;
+#endif
+#define PHYS_OFFSET __phys_offset
+#endif
+
+#ifndef PHYS_OFFSET
+#define PHYS_OFFSET 0
#endif
+#define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT)
+#define ARCH_PFN_OFFSET PHYS_PFN_OFFSET
+
#define TASK_SIZE (PAGE_OFFSET)
/* not sure how these are used yet */
@@ -55,7 +64,7 @@ enum fixed_addresses {
__end_of_fixed_addresses
};
-#define MIN_KERNEL_SEG 0x300 /* From 0xc0000000 */
+#define MIN_KERNEL_SEG (PAGE_OFFSET >> PGDIR_SHIFT) /* L1 shift is 22 bits */
extern int max_kernel_seg;
/*
@@ -63,8 +72,7 @@ extern int max_kernel_seg;
* supposed to be based on the amount of physical memory available
*/
-#define VMALLOC_START (PAGE_OFFSET + VMALLOC_OFFSET + \
- (unsigned long)high_memory)
+#define VMALLOC_START ((unsigned long) __va(high_memory + VMALLOC_OFFSET))
/* Gap between physical ram and vmalloc space for guard purposes. */
#define VMALLOC_OFFSET PAGE_SIZE
diff --git a/arch/hexagon/include/asm/page.h b/arch/hexagon/include/asm/page.h
index 692adc213429..93f5669b4aa1 100644
--- a/arch/hexagon/include/asm/page.h
+++ b/arch/hexagon/include/asm/page.h
@@ -1,7 +1,7 @@
/*
* Page management definitions for the Hexagon architecture
*
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -96,8 +96,8 @@ typedef struct page *pgtable_t;
* MIPS says they're only used during mem_init.
* also, check if we need a PHYS_OFFSET.
*/
-#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET)
-#define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET))
+#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET + PHYS_OFFSET)
+#define __va(x) ((void *)((unsigned long)(x) - PHYS_OFFSET + PAGE_OFFSET))
/* The "page frame" descriptor is defined in linux/mm.h */
struct page;
@@ -140,6 +140,11 @@ static inline void clear_page(void *page)
*/
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
+#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
+#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
+
+#define page_to_virt(page) __va(page_to_phys(page))
+
/*
* For port to Hexagon Virtual Machine, MAYBE we check for attempts
* to reference reserved HVM space, but in any case, the VM will be
@@ -147,6 +152,7 @@ static inline void clear_page(void *page)
*/
#define kern_addr_valid(addr) (1)
+#include <asm/mem-layout.h>
#include <asm-generic/memory_model.h>
/* XXX Todo: implement assembly-optimized version of getorder. */
#include <asm-generic/getorder.h>
diff --git a/arch/hexagon/include/asm/processor.h b/arch/hexagon/include/asm/processor.h
index 6dd5d3706869..45a825402f63 100644
--- a/arch/hexagon/include/asm/processor.h
+++ b/arch/hexagon/include/asm/processor.h
@@ -1,7 +1,7 @@
/*
* Process/processor support for the Hexagon architecture
*
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2010-2012, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -100,12 +100,49 @@ extern unsigned long get_wchan(struct task_struct *p);
*/
struct hexagon_switch_stack {
- unsigned long long r1716;
- unsigned long long r1918;
- unsigned long long r2120;
- unsigned long long r2322;
- unsigned long long r2524;
- unsigned long long r2726;
+ union {
+ struct {
+ unsigned long r16;
+ unsigned long r17;
+ };
+ unsigned long long r1716;
+ };
+ union {
+ struct {
+ unsigned long r18;
+ unsigned long r19;
+ };
+ unsigned long long r1918;
+ };
+ union {
+ struct {
+ unsigned long r20;
+ unsigned long r21;
+ };
+ unsigned long long r2120;
+ };
+ union {
+ struct {
+ unsigned long r22;
+ unsigned long r23;
+ };
+ unsigned long long r2322;
+ };
+ union {
+ struct {
+ unsigned long r24;
+ unsigned long r25;
+ };
+ unsigned long long r2524;
+ };
+ union {
+ struct {
+ unsigned long r26;
+ unsigned long r27;
+ };
+ unsigned long long r2726;
+ };
+
unsigned long fp;
unsigned long lr;
};
diff --git a/arch/hexagon/include/asm/vm_mmu.h b/arch/hexagon/include/asm/vm_mmu.h
index 9a94de7969bb..096537d8f4c5 100644
--- a/arch/hexagon/include/asm/vm_mmu.h
+++ b/arch/hexagon/include/asm/vm_mmu.h
@@ -1,7 +1,7 @@
/*
* Hexagon VM page table entry definitions
*
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2010-2011,2013 The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -68,14 +68,13 @@
#define __HEXAGON_C_WB 0x0 /* Write-back, no L2 */
#define __HEXAGON_C_WT 0x1 /* Write-through, no L2 */
+#define __HEXAGON_C_UNC 0x6 /* Uncached memory */
+#if CONFIG_HEXAGON_ARCH_VERSION >= 2
#define __HEXAGON_C_DEV 0x4 /* Device register space */
-#define __HEXAGON_C_WT_L2 0x5 /* Write-through, with L2 */
-/* this really should be #if CONFIG_HEXAGON_ARCH = 2 but that's not defined */
-#if defined(CONFIG_HEXAGON_COMET) || defined(CONFIG_QDSP6_ST1)
-#define __HEXAGON_C_UNC __HEXAGON_C_DEV
#else
-#define __HEXAGON_C_UNC 0x6 /* Uncached memory */
+#define __HEXAGON_C_DEV __HEXAGON_C_UNC
#endif
+#define __HEXAGON_C_WT_L2 0x5 /* Write-through, with L2 */
#define __HEXAGON_C_WB_L2 0x7 /* Write-back, with L2 */
/*