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-rw-r--r--arch/sparc/Kconfig1
-rw-r--r--arch/sparc/Makefile1
-rw-r--r--arch/sparc/configs/sparc32_defconfig1
-rw-r--r--arch/sparc/configs/sparc64_defconfig1
-rw-r--r--arch/sparc/include/asm/fb.h47
-rw-r--r--arch/sparc/include/uapi/asm/socket.h3
-rw-r--r--arch/sparc/mm/fault_32.c32
-rw-r--r--arch/sparc/mm/fault_64.c8
-rw-r--r--arch/sparc/video/Makefile3
-rw-r--r--arch/sparc/video/fbdev.c23
10 files changed, 71 insertions, 49 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 6197b87f2b3b..49849790e66d 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -58,6 +58,7 @@ config SPARC32
select DMA_DIRECT_REMAP
select GENERIC_ATOMIC64
select HAVE_UID16
+ select LOCK_MM_AND_FIND_VMA
select OLD_SIGACTION
select ZONE_DMA
diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile
index 74be90529a18..7417345c6639 100644
--- a/arch/sparc/Makefile
+++ b/arch/sparc/Makefile
@@ -60,6 +60,7 @@ libs-y += arch/sparc/prom/
libs-y += arch/sparc/lib/
drivers-$(CONFIG_PM) += arch/sparc/power/
+drivers-$(CONFIG_FB) += arch/sparc/video/
boot := arch/sparc/boot
diff --git a/arch/sparc/configs/sparc32_defconfig b/arch/sparc/configs/sparc32_defconfig
index 7b3efe5edc1a..7c489e7f19b7 100644
--- a/arch/sparc/configs/sparc32_defconfig
+++ b/arch/sparc/configs/sparc32_defconfig
@@ -4,7 +4,6 @@ CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_BLK_DEV_INITRD=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-CONFIG_SLAB=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
diff --git a/arch/sparc/configs/sparc64_defconfig b/arch/sparc/configs/sparc64_defconfig
index 18099099583e..0bb0d4da5227 100644
--- a/arch/sparc/configs/sparc64_defconfig
+++ b/arch/sparc/configs/sparc64_defconfig
@@ -6,7 +6,6 @@ CONFIG_LOG_BUF_SHIFT=18
CONFIG_BLK_DEV_INITRD=y
CONFIG_PERF_EVENTS=y
# CONFIG_COMPAT_BRK is not set
-CONFIG_SLAB=y
CONFIG_PROFILING=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
diff --git a/arch/sparc/include/asm/fb.h b/arch/sparc/include/asm/fb.h
index f699962e9ddf..572ecd3e1cc4 100644
--- a/arch/sparc/include/asm/fb.h
+++ b/arch/sparc/include/asm/fb.h
@@ -1,34 +1,41 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _SPARC_FB_H_
#define _SPARC_FB_H_
-#include <linux/console.h>
-#include <linux/fb.h>
-#include <linux/fs.h>
-#include <asm/page.h>
-#include <asm/prom.h>
+#include <linux/io.h>
+
+struct fb_info;
+struct file;
+struct vm_area_struct;
+
+#ifdef CONFIG_SPARC32
static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
unsigned long off)
-{
-#ifdef CONFIG_SPARC64
- vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+{ }
+#define fb_pgprotect fb_pgprotect
#endif
-}
-static inline int fb_is_primary_device(struct fb_info *info)
-{
- struct device *dev = info->device;
- struct device_node *node;
+int fb_is_primary_device(struct fb_info *info);
+#define fb_is_primary_device fb_is_primary_device
- if (console_set_on_cmdline)
- return 0;
+static inline void fb_memcpy_fromio(void *to, const volatile void __iomem *from, size_t n)
+{
+ sbus_memcpy_fromio(to, from, n);
+}
+#define fb_memcpy_fromio fb_memcpy_fromio
- node = dev->of_node;
- if (node &&
- node == of_console_device)
- return 1;
+static inline void fb_memcpy_toio(volatile void __iomem *to, const void *from, size_t n)
+{
+ sbus_memcpy_toio(to, from, n);
+}
+#define fb_memcpy_toio fb_memcpy_toio
- return 0;
+static inline void fb_memset_io(volatile void __iomem *addr, int c, size_t n)
+{
+ sbus_memset_io(addr, c, n);
}
+#define fb_memset fb_memset_io
+
+#include <asm-generic/fb.h>
#endif /* _SPARC_FB_H_ */
diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h
index 2fda57a3ea86..682da3714686 100644
--- a/arch/sparc/include/uapi/asm/socket.h
+++ b/arch/sparc/include/uapi/asm/socket.h
@@ -130,6 +130,9 @@
#define SO_RCVMARK 0x0054
+#define SO_PASSPIDFD 0x0055
+#define SO_PEERPIDFD 0x0056
+
#if !defined(__KERNEL__)
diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
index 179295b14664..86a831ebd8c8 100644
--- a/arch/sparc/mm/fault_32.c
+++ b/arch/sparc/mm/fault_32.c
@@ -143,28 +143,19 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
if (pagefault_disabled() || !mm)
goto no_context;
+ if (!from_user && address >= PAGE_OFFSET)
+ goto no_context;
+
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
retry:
- mmap_read_lock(mm);
-
- if (!from_user && address >= PAGE_OFFSET)
- goto bad_area;
-
- vma = find_vma(mm, address);
+ vma = lock_mm_and_find_vma(mm, address, regs);
if (!vma)
- goto bad_area;
- if (vma->vm_start <= address)
- goto good_area;
- if (!(vma->vm_flags & VM_GROWSDOWN))
- goto bad_area;
- if (expand_stack(vma, address))
- goto bad_area;
+ goto bad_area_nosemaphore;
/*
* Ok, we have a good vm_area for this memory access, so
* we can handle it..
*/
-good_area:
code = SEGV_ACCERR;
if (write) {
if (!(vma->vm_flags & VM_WRITE))
@@ -321,17 +312,9 @@ static void force_user_fault(unsigned long address, int write)
code = SEGV_MAPERR;
- mmap_read_lock(mm);
- vma = find_vma(mm, address);
+ vma = lock_mm_and_find_vma(mm, address, NULL);
if (!vma)
- goto bad_area;
- if (vma->vm_start <= address)
- goto good_area;
- if (!(vma->vm_flags & VM_GROWSDOWN))
- goto bad_area;
- if (expand_stack(vma, address))
- goto bad_area;
-good_area:
+ goto bad_area_nosemaphore;
code = SEGV_ACCERR;
if (write) {
if (!(vma->vm_flags & VM_WRITE))
@@ -350,6 +333,7 @@ good_area:
return;
bad_area:
mmap_read_unlock(mm);
+bad_area_nosemaphore:
__do_fault_siginfo(code, SIGSEGV, tsk->thread.kregs, address);
return;
diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
index d8a407fbe350..e326caf708c6 100644
--- a/arch/sparc/mm/fault_64.c
+++ b/arch/sparc/mm/fault_64.c
@@ -386,8 +386,9 @@ continue_fault:
goto bad_area;
}
}
- if (expand_stack(vma, address))
- goto bad_area;
+ vma = expand_stack(mm, address);
+ if (!vma)
+ goto bad_area_nosemaphore;
/*
* Ok, we have a good vm_area for this memory access, so
* we can handle it..
@@ -490,8 +491,9 @@ exit_exception:
* Fix it, but check if it's kernel or user first..
*/
bad_area:
- insn = get_fault_insn(regs, insn);
mmap_read_unlock(mm);
+bad_area_nosemaphore:
+ insn = get_fault_insn(regs, insn);
handle_kernel_fault:
do_kernel_fault(regs, si_code, fault_code, insn, address);
diff --git a/arch/sparc/video/Makefile b/arch/sparc/video/Makefile
new file mode 100644
index 000000000000..6baddbd58e4d
--- /dev/null
+++ b/arch/sparc/video/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+obj-$(CONFIG_FB) += fbdev.o
diff --git a/arch/sparc/video/fbdev.c b/arch/sparc/video/fbdev.c
new file mode 100644
index 000000000000..25837f128132
--- /dev/null
+++ b/arch/sparc/video/fbdev.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/console.h>
+#include <linux/fb.h>
+#include <linux/module.h>
+
+#include <asm/prom.h>
+
+int fb_is_primary_device(struct fb_info *info)
+{
+ struct device *dev = info->device;
+ struct device_node *node;
+
+ if (console_set_on_cmdline)
+ return 0;
+
+ node = dev->of_node;
+ if (node && node == of_console_device)
+ return 1;
+
+ return 0;
+}
+EXPORT_SYMBOL(fb_is_primary_device);
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