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-rw-r--r--arch/mips64/defconfig19
-rw-r--r--arch/mips64/defconfig-ip2219
-rw-r--r--arch/mips64/defconfig-ip2719
-rw-r--r--arch/mips64/kernel/scall_64.S3
-rw-r--r--arch/mips64/kernel/scall_o32.S3
-rw-r--r--arch/mips64/kernel/semaphore.c111
-rw-r--r--arch/mips64/mm/fault.c11
-rw-r--r--arch/mips64/sgi-ip27/Makefile6
-rw-r--r--arch/mips64/sgi-ip27/ip27-pci-dma.c55
9 files changed, 227 insertions, 19 deletions
diff --git a/arch/mips64/defconfig b/arch/mips64/defconfig
index a07c83b0c..971b6aae6 100644
--- a/arch/mips64/defconfig
+++ b/arch/mips64/defconfig
@@ -77,7 +77,7 @@ CONFIG_PCI_NAMES=y
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_BLK_DEV_DAC960 is not set
-CONFIG_PARIDE_PARPORT=m
+# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_HD is not set
@@ -328,23 +328,36 @@ CONFIG_SERIAL_CONSOLE=y
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_BFS_FS_WRITE is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
+# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_ISO9660_FS is not set
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
+# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
+# CONFIG_DEVPTS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
+# CONFIG_SYSV_FS_WRITE is not set
# CONFIG_UDF_FS is not set
+# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
+# CONFIG_UFS_FS_WRITE is not set
#
# Network File Systems
@@ -353,6 +366,7 @@ CONFIG_EXT2_FS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
# CONFIG_NFSD is not set
+# CONFIG_NFSD_V3 is not set
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
# CONFIG_SMB_FS is not set
@@ -362,10 +376,7 @@ CONFIG_LOCKD=y
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-# CONFIG_ULTRIX_PARTITION is not set
CONFIG_SGI_PARTITION=y
-# CONFIG_SUN_PARTITION is not set
# CONFIG_NLS is not set
CONFIG_KCORE_ELF=y
diff --git a/arch/mips64/defconfig-ip22 b/arch/mips64/defconfig-ip22
index 88f4eecd1..43206114d 100644
--- a/arch/mips64/defconfig-ip22
+++ b/arch/mips64/defconfig-ip22
@@ -68,7 +68,7 @@ CONFIG_BINFMT_ELF=y
# CONFIG_BLK_DEV_MD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_XD is not set
-CONFIG_PARIDE_PARPORT=m
+# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_HD is not set
@@ -250,23 +250,36 @@ CONFIG_VT_CONSOLE=y
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_BFS_FS_WRITE is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
+# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_ISO9660_FS is not set
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
+# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
+# CONFIG_DEVPTS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
+# CONFIG_SYSV_FS_WRITE is not set
# CONFIG_UDF_FS is not set
+# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
+# CONFIG_UFS_FS_WRITE is not set
#
# Network File Systems
@@ -275,6 +288,7 @@ CONFIG_EXT2_FS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
# CONFIG_NFSD is not set
+# CONFIG_NFSD_V3 is not set
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
# CONFIG_SMB_FS is not set
@@ -284,10 +298,7 @@ CONFIG_LOCKD=y
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
CONFIG_SGI_PARTITION=y
-# CONFIG_ULTRIX_PARTITION is not set
-# CONFIG_SUN_PARTITION is not set
# CONFIG_NLS is not set
#
diff --git a/arch/mips64/defconfig-ip27 b/arch/mips64/defconfig-ip27
index a07c83b0c..971b6aae6 100644
--- a/arch/mips64/defconfig-ip27
+++ b/arch/mips64/defconfig-ip27
@@ -77,7 +77,7 @@ CONFIG_PCI_NAMES=y
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_BLK_DEV_DAC960 is not set
-CONFIG_PARIDE_PARPORT=m
+# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_HD is not set
@@ -328,23 +328,36 @@ CONFIG_SERIAL_CONSOLE=y
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_BFS_FS_WRITE is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
+# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_ISO9660_FS is not set
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
+# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
+# CONFIG_DEVPTS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
+# CONFIG_SYSV_FS_WRITE is not set
# CONFIG_UDF_FS is not set
+# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
+# CONFIG_UFS_FS_WRITE is not set
#
# Network File Systems
@@ -353,6 +366,7 @@ CONFIG_EXT2_FS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
# CONFIG_NFSD is not set
+# CONFIG_NFSD_V3 is not set
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
# CONFIG_SMB_FS is not set
@@ -362,10 +376,7 @@ CONFIG_LOCKD=y
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-# CONFIG_ULTRIX_PARTITION is not set
CONFIG_SGI_PARTITION=y
-# CONFIG_SUN_PARTITION is not set
# CONFIG_NLS is not set
CONFIG_KCORE_ELF=y
diff --git a/arch/mips64/kernel/scall_64.S b/arch/mips64/kernel/scall_64.S
index 0e9d40e17..34ff47b4d 100644
--- a/arch/mips64/kernel/scall_64.S
+++ b/arch/mips64/kernel/scall_64.S
@@ -1,4 +1,4 @@
-/* $Id: scall_64.S,v 1.2 1999/12/21 12:35:22 ralf Exp $
+/* $Id: scall_64.S,v 1.5 2000/01/24 01:34:16 ralf Exp $
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
@@ -344,3 +344,4 @@ sys_call_table:
PTR sys_sendfile
PTR sys_ni_syscall
PTR sys_ni_syscall
+ PTR sys_pivot_root /* 4210 */
diff --git a/arch/mips64/kernel/scall_o32.S b/arch/mips64/kernel/scall_o32.S
index 7906258d2..57ec8bd53 100644
--- a/arch/mips64/kernel/scall_o32.S
+++ b/arch/mips64/kernel/scall_o32.S
@@ -1,4 +1,4 @@
-/* $Id: scall_o32.S,v 1.5 2000/02/04 07:40:24 ralf Exp $
+/* $Id: scall_o32.S,v 1.6 2000/02/05 06:47:09 ralf Exp $
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
@@ -407,6 +407,7 @@ illegal_syscall:
sys sys_stat64 3
sys sys_lstat64 3
sys sys_fstat64 3 /* 4210 */
+ sys sys_pivot_root 2
.endm
.macro sys function, nargs
diff --git a/arch/mips64/kernel/semaphore.c b/arch/mips64/kernel/semaphore.c
index d62b355e1..1f47bd929 100644
--- a/arch/mips64/kernel/semaphore.c
+++ b/arch/mips64/kernel/semaphore.c
@@ -127,3 +127,114 @@ int __down_trylock(struct semaphore * sem)
{
return waking_non_zero_trylock(sem);
}
+
+/*
+ * RW Semaphores
+ */
+void
+__down_read(struct rw_semaphore *sem, int count)
+{
+ DOWN_VAR;
+
+ retry_down:
+ if (count < 0) {
+ /* Wait for the lock to become unbiased. Readers
+ are non-exclusive. */
+
+ /* This takes care of granting the lock. */
+ up_read(sem);
+
+ add_wait_queue(&sem->wait, &wait);
+ while (atomic_read(&sem->count) < 0) {
+ set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+ if (atomic_read(&sem->count) >= 0)
+ break;
+ schedule();
+ }
+
+ remove_wait_queue(&sem->wait, &wait);
+ tsk->state = TASK_RUNNING;
+
+ mb();
+ count = atomic_dec_return(&sem->count);
+ if (count <= 0)
+ goto retry_down;
+ } else {
+ add_wait_queue(&sem->wait, &wait);
+
+ while (1) {
+ if (test_and_clear_bit(0, &sem->granted))
+ break;
+ set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+ if ((sem->granted & 1) == 0)
+ schedule();
+ }
+
+ remove_wait_queue(&sem->wait, &wait);
+ tsk->state = TASK_RUNNING;
+ }
+}
+
+void
+__down_write(struct rw_semaphore *sem, int count)
+{
+ DOWN_VAR;
+
+ retry_down:
+ if (count + RW_LOCK_BIAS < 0) {
+ up_write(sem);
+
+ add_wait_queue_exclusive(&sem->wait, &wait);
+
+ while (atomic_read(&sem->count) < 0) {
+ set_task_state(tsk, (TASK_UNINTERRUPTIBLE
+ | TASK_EXCLUSIVE));
+ if (atomic_read(&sem->count) >= RW_LOCK_BIAS)
+ break;
+ schedule();
+ }
+
+ remove_wait_queue(&sem->wait, &wait);
+ tsk->state = TASK_RUNNING;
+
+ mb();
+ count = atomic_sub_return(RW_LOCK_BIAS, &sem->count);
+ if (count != 0)
+ goto retry_down;
+ } else {
+ /* Put ourselves at the end of the list. */
+ add_wait_queue_exclusive(&sem->write_bias_wait, &wait);
+
+ while (1) {
+ if (test_and_clear_bit(1, &sem->granted))
+ break;
+ set_task_state(tsk, (TASK_UNINTERRUPTIBLE
+ | TASK_EXCLUSIVE));
+ if ((sem->granted & 2) == 0)
+ schedule();
+ }
+
+ remove_wait_queue(&sem->write_bias_wait, &wait);
+ tsk->state = TASK_RUNNING;
+
+ /* If the lock is currently unbiased, awaken the sleepers.
+ FIXME: This wakes up the readers early in a bit of a
+ stampede -> bad! */
+ if (atomic_read(&sem->count) >= 0)
+ wake_up(&sem->wait);
+ }
+}
+
+void
+__rwsem_wake(struct rw_semaphore *sem, unsigned long readers)
+{
+ if (readers) {
+ if (test_and_set_bit(0, &sem->granted))
+ BUG();
+ wake_up(&sem->wait);
+ } else {
+ if (test_and_set_bit(1, &sem->granted))
+ BUG();
+ wake_up(&sem->write_bias_wait);
+ }
+}
diff --git a/arch/mips64/mm/fault.c b/arch/mips64/mm/fault.c
index 772aa0475..b7a9e2b8f 100644
--- a/arch/mips64/mm/fault.c
+++ b/arch/mips64/mm/fault.c
@@ -1,4 +1,4 @@
-/* $Id: fault.c,v 1.4 1999/12/04 03:59:00 ralf Exp $
+/* $Id: fault.c,v 1.5 2000/02/04 07:40:24 ralf Exp $
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
@@ -50,6 +50,7 @@ do_page_fault(struct pt_regs *regs, unsigned long write, unsigned long address)
struct vm_area_struct * vma;
struct task_struct *tsk = current;
struct mm_struct *mm = tsk->mm;
+ int si_code = SEGV_MAPERR;
unsigned long fixup;
/*
@@ -77,6 +78,8 @@ do_page_fault(struct pt_regs *regs, unsigned long write, unsigned long address)
* we can handle it..
*/
good_area:
+ si_code = SEGV_ACCERR;
+
if (write) {
if (!(vma->vm_flags & VM_WRITE))
goto bad_area;
@@ -109,6 +112,7 @@ bad_area:
up(&mm->mmap_sem);
if (user_mode(regs)) {
+ struct siginfo si;
tsk->thread.cp0_badvaddr = address;
tsk->thread.error_code = write;
#if 0
@@ -120,7 +124,10 @@ bad_area:
(unsigned long) regs->cp0_epc,
(unsigned long) regs->regs[31]);
#endif
- force_sig(SIGSEGV, tsk);
+ si.si_signo = SIGSEGV;
+ si.si_code = si_code;
+ si.si_addr = (void *) address;
+ force_sig_info(SIGSEGV, &si, tsk);
return;
}
diff --git a/arch/mips64/sgi-ip27/Makefile b/arch/mips64/sgi-ip27/Makefile
index 996bfb1e8..514beaa81 100644
--- a/arch/mips64/sgi-ip27/Makefile
+++ b/arch/mips64/sgi-ip27/Makefile
@@ -1,4 +1,4 @@
-# $Id$
+# $Id: Makefile,v 1.3 2000/02/04 08:41:40 kanoj Exp $
#
# Makefile for the IP27 specific kernel interface routines under Linux.
#
@@ -10,7 +10,7 @@
L_TARGET = ip27.a
L_OBJS = ip27-berr.o ip27-irq.o ip27-irq-glue.o ip27-klconfig.o \
- ip27-memory.o ip27-pci.o ip27-reset.o ip27-setup.o ip27-timer.o \
- ip27-init.o
+ ip27-memory.o ip27-pci.o ip27-pci-dma.o ip27-reset.o ip27-setup.o \
+ ip27-timer.o ip27-init.o
include $(TOPDIR)/Rules.make
diff --git a/arch/mips64/sgi-ip27/ip27-pci-dma.c b/arch/mips64/sgi-ip27/ip27-pci-dma.c
new file mode 100644
index 000000000..81e3e5c6f
--- /dev/null
+++ b/arch/mips64/sgi-ip27/ip27-pci-dma.c
@@ -0,0 +1,55 @@
+/* $Id: ip27-pci-dma.c,v 1.1 2000/02/16 21:22:00 ralf Exp $
+ *
+ * Dynamic DMA mapping support.
+ *
+ * On the Origin there is dynamic DMA address translation for all PCI DMA.
+ * However we don't use this facility yet but rely on the 2gb direct
+ * mapped DMA window for PCI64. So consistent alloc/free are merely page
+ * allocation/freeing. The rest of the dynamic DMA mapping interface is
+ * implemented in <asm/pci.h>. So this code will fail with more than
+ * 2gb of memory.
+ */
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+
+/* Pure 2^n version of get_order */
+extern __inline__ int __get_order(unsigned long size)
+{
+ int order;
+
+ size = (size-1) >> (PAGE_SHIFT-1);
+ order = -1;
+ do {
+ size >>= 1;
+ order++;
+ } while (size);
+ return order;
+}
+
+void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
+ dma_addr_t *dma_handle)
+{
+ void *ret;
+ int gfp = GFP_ATOMIC;
+ int order = __get_order(size);
+
+ if (hwdev == NULL || hwdev->dma_mask != 0xffffffff)
+ gfp |= GFP_DMA;
+ ret = (void *)__get_free_pages(gfp, order);
+
+ if (ret != NULL) {
+ memset(ret, 0, size);
+ *dma_handle = virt_to_bus(ret);
+ }
+
+ return ret;
+}
+
+void pci_free_consistent(struct pci_dev *hwdev, size_t size,
+ void *vaddr, dma_addr_t dma_handle)
+{
+ free_pages((unsigned long)vaddr, __get_order(size));
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 16:33:18 +0000