aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mm
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mm')
-rw-r--r--arch/arm/mm/fault.c2
-rw-r--r--arch/arm/mm/nommu.c19
-rw-r--r--arch/arm/mm/proc-arm1020.S2
-rw-r--r--arch/arm/mm/proc-arm1020e.S2
-rw-r--r--arch/arm/mm/proc-arm1022.S2
-rw-r--r--arch/arm/mm/proc-arm1026.S2
-rw-r--r--arch/arm/mm/proc-arm720.S2
-rw-r--r--arch/arm/mm/proc-arm740.S2
-rw-r--r--arch/arm/mm/proc-arm7tdmi.S2
-rw-r--r--arch/arm/mm/proc-arm920.S2
-rw-r--r--arch/arm/mm/proc-arm922.S2
-rw-r--r--arch/arm/mm/proc-arm925.S2
-rw-r--r--arch/arm/mm/proc-arm926.S2
-rw-r--r--arch/arm/mm/proc-arm940.S2
-rw-r--r--arch/arm/mm/proc-arm946.S2
-rw-r--r--arch/arm/mm/proc-arm9tdmi.S2
-rw-r--r--arch/arm/mm/proc-fa526.S2
-rw-r--r--arch/arm/mm/proc-feroceon.S2
-rw-r--r--arch/arm/mm/proc-mohawk.S2
-rw-r--r--arch/arm/mm/proc-sa110.S2
-rw-r--r--arch/arm/mm/proc-sa1100.S2
-rw-r--r--arch/arm/mm/proc-v6.S2
-rw-r--r--arch/arm/mm/proc-v7.S2
-rw-r--r--arch/arm/mm/proc-v7m.S4
-rw-r--r--arch/arm/mm/proc-xsc3.S2
-rw-r--r--arch/arm/mm/proc-xscale.S2
26 files changed, 45 insertions, 26 deletions
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index da142bb76fc0..4f5470bc0a1c 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -149,7 +149,7 @@ __do_kernel_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
show_pte(mm, addr);
die("Oops", regs, fsr);
bust_spinlocks(0);
- do_exit(SIGKILL);
+ make_task_dead(SIGKILL);
}
/*
diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c
index 7d67c70bbded..46d2142ebd14 100644
--- a/arch/arm/mm/nommu.c
+++ b/arch/arm/mm/nommu.c
@@ -25,6 +25,13 @@
unsigned long vectors_base;
+/*
+ * empty_zero_page is a special page that is used for
+ * zero-initialized data and COW.
+ */
+struct page *empty_zero_page;
+EXPORT_SYMBOL(empty_zero_page);
+
#ifdef CONFIG_ARM_MPU
struct mpu_rgn_info mpu_rgn_info;
#endif
@@ -147,9 +154,21 @@ void __init adjust_lowmem_bounds(void)
*/
void __init paging_init(const struct machine_desc *mdesc)
{
+ void *zero_page;
+
early_trap_init((void *)vectors_base);
mpu_setup();
+
+ /* allocate the zero page. */
+ zero_page = (void *)memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!zero_page)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
+
bootmem_init();
+
+ empty_zero_page = virt_to_page(zero_page);
+ flush_dcache_page(empty_zero_page);
}
/*
diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S
index 774ef1323554..4773490177c9 100644
--- a/arch/arm/mm/proc-arm1020.S
+++ b/arch/arm/mm/proc-arm1020.S
@@ -505,7 +505,7 @@ cpu_arm1020_name:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.type __arm1020_proc_info,#object
__arm1020_proc_info:
diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S
index ae3c27b71594..928e8ca58f40 100644
--- a/arch/arm/mm/proc-arm1020e.S
+++ b/arch/arm/mm/proc-arm1020e.S
@@ -463,7 +463,7 @@ arm1020e_crval:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.type __arm1020e_proc_info,#object
__arm1020e_proc_info:
diff --git a/arch/arm/mm/proc-arm1022.S b/arch/arm/mm/proc-arm1022.S
index dbb2413fe04d..385584c3d222 100644
--- a/arch/arm/mm/proc-arm1022.S
+++ b/arch/arm/mm/proc-arm1022.S
@@ -448,7 +448,7 @@ arm1022_crval:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.type __arm1022_proc_info,#object
__arm1022_proc_info:
diff --git a/arch/arm/mm/proc-arm1026.S b/arch/arm/mm/proc-arm1026.S
index 0b37b2cef9d3..29cc81857373 100644
--- a/arch/arm/mm/proc-arm1026.S
+++ b/arch/arm/mm/proc-arm1026.S
@@ -442,7 +442,7 @@ arm1026_crval:
string cpu_arm1026_name, "ARM1026EJ-S"
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.type __arm1026_proc_info,#object
__arm1026_proc_info:
diff --git a/arch/arm/mm/proc-arm720.S b/arch/arm/mm/proc-arm720.S
index 3651cd70e418..c08cd1b0a1d0 100644
--- a/arch/arm/mm/proc-arm720.S
+++ b/arch/arm/mm/proc-arm720.S
@@ -186,7 +186,7 @@ arm720_crval:
* See <asm/procinfo.h> for a definition of this structure.
*/
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.macro arm720_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, cpu_flush:req
.type __\name\()_proc_info,#object
diff --git a/arch/arm/mm/proc-arm740.S b/arch/arm/mm/proc-arm740.S
index 024fb7732407..6eed87103b95 100644
--- a/arch/arm/mm/proc-arm740.S
+++ b/arch/arm/mm/proc-arm740.S
@@ -132,7 +132,7 @@ __arm740_setup:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.type __arm740_proc_info,#object
__arm740_proc_info:
.long 0x41807400
diff --git a/arch/arm/mm/proc-arm7tdmi.S b/arch/arm/mm/proc-arm7tdmi.S
index 25472d94426d..beb64a7ccb38 100644
--- a/arch/arm/mm/proc-arm7tdmi.S
+++ b/arch/arm/mm/proc-arm7tdmi.S
@@ -76,7 +76,7 @@ __arm7tdmi_setup:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.macro arm7tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, \
extra_hwcaps=0
diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S
index 7a14bd4414c9..5d4319708362 100644
--- a/arch/arm/mm/proc-arm920.S
+++ b/arch/arm/mm/proc-arm920.S
@@ -448,7 +448,7 @@ arm920_crval:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.type __arm920_proc_info,#object
__arm920_proc_info:
diff --git a/arch/arm/mm/proc-arm922.S b/arch/arm/mm/proc-arm922.S
index edccfcdcd551..7e22ca780b36 100644
--- a/arch/arm/mm/proc-arm922.S
+++ b/arch/arm/mm/proc-arm922.S
@@ -426,7 +426,7 @@ arm922_crval:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.type __arm922_proc_info,#object
__arm922_proc_info:
diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S
index 32a47cc19076..d343e77b8456 100644
--- a/arch/arm/mm/proc-arm925.S
+++ b/arch/arm/mm/proc-arm925.S
@@ -491,7 +491,7 @@ arm925_crval:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.macro arm925_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, cache
.type __\name\()_proc_info,#object
diff --git a/arch/arm/mm/proc-arm926.S b/arch/arm/mm/proc-arm926.S
index fb827c633693..8cf78c608c42 100644
--- a/arch/arm/mm/proc-arm926.S
+++ b/arch/arm/mm/proc-arm926.S
@@ -474,7 +474,7 @@ arm926_crval:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.type __arm926_proc_info,#object
__arm926_proc_info:
diff --git a/arch/arm/mm/proc-arm940.S b/arch/arm/mm/proc-arm940.S
index ee5b66f847c4..631ae64eeccd 100644
--- a/arch/arm/mm/proc-arm940.S
+++ b/arch/arm/mm/proc-arm940.S
@@ -344,7 +344,7 @@ __arm940_setup:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.type __arm940_proc_info,#object
__arm940_proc_info:
diff --git a/arch/arm/mm/proc-arm946.S b/arch/arm/mm/proc-arm946.S
index 7361837edc31..033ad7402d67 100644
--- a/arch/arm/mm/proc-arm946.S
+++ b/arch/arm/mm/proc-arm946.S
@@ -399,7 +399,7 @@ __arm946_setup:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.type __arm946_proc_info,#object
__arm946_proc_info:
.long 0x41009460
diff --git a/arch/arm/mm/proc-arm9tdmi.S b/arch/arm/mm/proc-arm9tdmi.S
index 7fac8c612134..2195468ccd76 100644
--- a/arch/arm/mm/proc-arm9tdmi.S
+++ b/arch/arm/mm/proc-arm9tdmi.S
@@ -70,7 +70,7 @@ __arm9tdmi_setup:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.macro arm9tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req
.type __\name\()_proc_info, #object
diff --git a/arch/arm/mm/proc-fa526.S b/arch/arm/mm/proc-fa526.S
index 4001b73af4ee..fd3e5dd94e59 100644
--- a/arch/arm/mm/proc-fa526.S
+++ b/arch/arm/mm/proc-fa526.S
@@ -190,7 +190,7 @@ fa526_cr1_set:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.type __fa526_proc_info,#object
__fa526_proc_info:
diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S
index 92e08bf37aad..685d324a74d3 100644
--- a/arch/arm/mm/proc-feroceon.S
+++ b/arch/arm/mm/proc-feroceon.S
@@ -584,7 +584,7 @@ feroceon_crval:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.macro feroceon_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, cache:req
.type __\name\()_proc_info,#object
diff --git a/arch/arm/mm/proc-mohawk.S b/arch/arm/mm/proc-mohawk.S
index 6f07d2ef4ff2..9182321a586a 100644
--- a/arch/arm/mm/proc-mohawk.S
+++ b/arch/arm/mm/proc-mohawk.S
@@ -429,7 +429,7 @@ mohawk_crval:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.type __88sv331x_proc_info,#object
__88sv331x_proc_info:
diff --git a/arch/arm/mm/proc-sa110.S b/arch/arm/mm/proc-sa110.S
index ee2ce496239f..093ad2ceff28 100644
--- a/arch/arm/mm/proc-sa110.S
+++ b/arch/arm/mm/proc-sa110.S
@@ -199,7 +199,7 @@ sa110_crval:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.type __sa110_proc_info,#object
__sa110_proc_info:
diff --git a/arch/arm/mm/proc-sa1100.S b/arch/arm/mm/proc-sa1100.S
index 222d5836f666..12b8fcab4b59 100644
--- a/arch/arm/mm/proc-sa1100.S
+++ b/arch/arm/mm/proc-sa1100.S
@@ -242,7 +242,7 @@ sa1100_crval:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.macro sa1100_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req
.type __\name\()_proc_info,#object
diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S
index 06d890a2342b..32f4df0915ef 100644
--- a/arch/arm/mm/proc-v6.S
+++ b/arch/arm/mm/proc-v6.S
@@ -264,7 +264,7 @@ v6_crval:
string cpu_elf_name, "v6"
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
/*
* Match any ARMv6 processor core.
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 339eb17c9808..e351d682c2e3 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -637,7 +637,7 @@ __v7_setup_stack:
string cpu_elf_name, "v7"
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
/*
* Standard v7 proc info content
diff --git a/arch/arm/mm/proc-v7m.S b/arch/arm/mm/proc-v7m.S
index 9c2978c128d9..0be14b64879c 100644
--- a/arch/arm/mm/proc-v7m.S
+++ b/arch/arm/mm/proc-v7m.S
@@ -96,7 +96,7 @@ ENTRY(cpu_cm7_proc_fin)
ret lr
ENDPROC(cpu_cm7_proc_fin)
- .section ".init.text", #alloc, #execinstr
+ .section ".init.text", "ax"
__v7m_cm7_setup:
mov r8, #(V7M_SCB_CCR_DC | V7M_SCB_CCR_IC| V7M_SCB_CCR_BP)
@@ -180,7 +180,7 @@ ENDPROC(__v7m_setup)
string cpu_elf_name "v7m"
string cpu_v7m_name "ARMv7-M"
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.macro __v7m_proc name, initfunc, cache_fns = nop_cache_fns, hwcaps = 0, proc_fns = v7m_processor_functions
.long 0 /* proc_info_list.__cpu_mm_mmu_flags */
diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S
index 293dcc2c441f..da96e4de1353 100644
--- a/arch/arm/mm/proc-xsc3.S
+++ b/arch/arm/mm/proc-xsc3.S
@@ -499,7 +499,7 @@ xsc3_crval:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.macro xsc3_proc_info name:req, cpu_val:req, cpu_mask:req
.type __\name\()_proc_info,#object
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
index 3d75b7972fd1..c7800c69921b 100644
--- a/arch/arm/mm/proc-xscale.S
+++ b/arch/arm/mm/proc-xscale.S
@@ -613,7 +613,7 @@ xscale_crval:
.align
- .section ".proc.info.init", #alloc
+ .section ".proc.info.init", "a"
.macro xscale_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, cache
.type __\name\()_proc_info,#object
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-27 21:41:24 +0000