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Merge branch 'parisc' of master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6

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This commit is contained in:
Linus Torvalds 2005-11-18 14:25:40 -08:00
parent bcd039b230 2161558fa5
commit 62ae144f56
24 changed files with 245 additions and 649 deletions
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12
CREDITS
View file

@ -611,8 +611,7 @@ S: USA
N: Randolph Chung
E: tausq@debian.org
D: Linux/PA-RISC hacker
S: Los Altos, CA 94022
S: USA
S: Hong Kong
N: Juan Jose Ciarlante
W: http://juanjox.kernelnotes.org/
@ -3405,6 +3404,15 @@ S: Chudenicka 8
S: 10200 Prague 10, Hostivar
S: Czech Republic
N: Thibaut Varene
E: T-Bone@parisc-linux.org
W: http://www.parisc-linux.org/
P: 1024D/B7D2F063 E67C 0D43 A75E 12A5 BB1C FA2F 1E32 C3DA B7D2 F063
D: PA-RISC port minion, PDC and GSCPS2 drivers, debuglocks and other bits
D: Some bits in an ARM port, S1D13XXX FB driver, random patches here and there
D: AD1889 sound driver
S: Paris, France
N: Heikki Vatiainen
E: hessu@cs.tut.fi
D: Co-author of Multi-Protocol Over ATM (MPOA), some LANE hacks

8
arch/parisc/kernel/drivers.c
View file

@ -499,8 +499,12 @@ alloc_pa_dev(unsigned long hpa, struct hardware_path *mod_path)
dev = create_parisc_device(mod_path);
if (dev->id.hw_type != HPHW_FAULTY) {
printk("Two devices have hardware path %s. Please file a bug with HP.\n"
"In the meantime, you could try rearranging your cards.\n", parisc_pathname(dev));
printk(KERN_ERR "Two devices have hardware path [%s]. "
"IODC data for second device: "
"%02x%02x%02x%02x%02x%02x\n"
"Rearranging GSC cards sometimes helps\n",
parisc_pathname(dev), iodc_data[0], iodc_data[1],
iodc_data[3], iodc_data[4], iodc_data[5], iodc_data[6]);
return NULL;
}

1
arch/parisc/kernel/entry.S
View file

@ -1846,6 +1846,7 @@ sys_clone_wrapper:
ldo -16(%r30),%r29 /* Reference param save area */
#endif
/* WARNING - Clobbers r19 and r21, userspace must save these! */
STREG %r2,PT_GR19(%r1) /* save for child */
STREG %r30,PT_GR21(%r1)
BL sys_clone,%r2

2
arch/parisc/kernel/inventory.c
View file

@ -188,7 +188,7 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
temp = pa_pdc_cell.cba;
dev = alloc_pa_dev(PAT_GET_CBA(temp), &pa_pdc_cell.mod_path);
if (!dev) {
return PDC_NE_MOD;
return PDC_OK;
}
/* alloc_pa_dev sets dev->hpa */

546
arch/parisc/kernel/ioctl32.c
View file

@ -19,536 +19,6 @@
#define CODE
#include "compat_ioctl.c"
/* Use this to get at 32-bit user passed pointers.
See sys_sparc32.c for description about these. */
#define A(__x) ((unsigned long)(__x))
/* The same for use with copy_from_user() and copy_to_user(). */
#define B(__x) ((void *)(unsigned long)(__x))
#if defined(CONFIG_DRM) || defined(CONFIG_DRM_MODULE)
/* This really belongs in include/linux/drm.h -DaveM */
#include "../../../drivers/char/drm/drm.h"
typedef struct drm32_version {
int version_major; /* Major version */
int version_minor; /* Minor version */
int version_patchlevel;/* Patch level */
int name_len; /* Length of name buffer */
u32 name; /* Name of driver */
int date_len; /* Length of date buffer */
u32 date; /* User-space buffer to hold date */
int desc_len; /* Length of desc buffer */
u32 desc; /* User-space buffer to hold desc */
} drm32_version_t;
#define DRM32_IOCTL_VERSION DRM_IOWR(0x00, drm32_version_t)
static int drm32_version(unsigned int fd, unsigned int cmd, unsigned long arg)
{
drm32_version_t *uversion = (drm32_version_t *)arg;
char *name_ptr, *date_ptr, *desc_ptr;
u32 tmp1, tmp2, tmp3;
drm_version_t kversion;
mm_segment_t old_fs;
int ret;
memset(&kversion, 0, sizeof(kversion));
if (get_user(kversion.name_len, &uversion->name_len) ||
get_user(kversion.date_len, &uversion->date_len) ||
get_user(kversion.desc_len, &uversion->desc_len) ||
get_user(tmp1, &uversion->name) ||
get_user(tmp2, &uversion->date) ||
get_user(tmp3, &uversion->desc))
return -EFAULT;
name_ptr = (char *) A(tmp1);
date_ptr = (char *) A(tmp2);
desc_ptr = (char *) A(tmp3);
ret = -ENOMEM;
if (kversion.name_len && name_ptr) {
kversion.name = kmalloc(kversion.name_len, GFP_KERNEL);
if (!kversion.name)
goto out;
}
if (kversion.date_len && date_ptr) {
kversion.date = kmalloc(kversion.date_len, GFP_KERNEL);
if (!kversion.date)
goto out;
}
if (kversion.desc_len && desc_ptr) {
kversion.desc = kmalloc(kversion.desc_len, GFP_KERNEL);
if (!kversion.desc)
goto out;
}
old_fs = get_fs();
set_fs(KERNEL_DS);
ret = sys_ioctl (fd, DRM_IOCTL_VERSION, (unsigned long)&kversion);
set_fs(old_fs);
if (!ret) {
if ((kversion.name &&
copy_to_user(name_ptr, kversion.name, kversion.name_len)) ||
(kversion.date &&
copy_to_user(date_ptr, kversion.date, kversion.date_len)) ||
(kversion.desc &&
copy_to_user(desc_ptr, kversion.desc, kversion.desc_len)))
ret = -EFAULT;
if (put_user(kversion.version_major, &uversion->version_major) ||
put_user(kversion.version_minor, &uversion->version_minor) ||
put_user(kversion.version_patchlevel, &uversion->version_patchlevel) ||
put_user(kversion.name_len, &uversion->name_len) ||
put_user(kversion.date_len, &uversion->date_len) ||
put_user(kversion.desc_len, &uversion->desc_len))
ret = -EFAULT;
}
out:
kfree(kversion.name);
kfree(kversion.date);
kfree(kversion.desc);
return ret;
}
typedef struct drm32_unique {
int unique_len; /* Length of unique */
u32 unique; /* Unique name for driver instantiation */
} drm32_unique_t;
#define DRM32_IOCTL_GET_UNIQUE DRM_IOWR(0x01, drm32_unique_t)
#define DRM32_IOCTL_SET_UNIQUE DRM_IOW( 0x10, drm32_unique_t)
static int drm32_getsetunique(unsigned int fd, unsigned int cmd, unsigned long arg)
{
drm32_unique_t *uarg = (drm32_unique_t *)arg;
drm_unique_t karg;
mm_segment_t old_fs;
char *uptr;
u32 tmp;
int ret;
if (get_user(karg.unique_len, &uarg->unique_len))
return -EFAULT;
karg.unique = NULL;
if (get_user(tmp, &uarg->unique))
return -EFAULT;
uptr = (char *) A(tmp);
if (uptr) {
karg.unique = kmalloc(karg.unique_len, GFP_KERNEL);
if (!karg.unique)
return -ENOMEM;
if (cmd == DRM32_IOCTL_SET_UNIQUE &&
copy_from_user(karg.unique, uptr, karg.unique_len)) {
kfree(karg.unique);
return -EFAULT;
}
}
old_fs = get_fs();
set_fs(KERNEL_DS);
if (cmd == DRM32_IOCTL_GET_UNIQUE)
ret = sys_ioctl (fd, DRM_IOCTL_GET_UNIQUE, (unsigned long)&karg);
else
ret = sys_ioctl (fd, DRM_IOCTL_SET_UNIQUE, (unsigned long)&karg);
set_fs(old_fs);
if (!ret) {
if (cmd == DRM32_IOCTL_GET_UNIQUE &&
uptr != NULL &&
copy_to_user(uptr, karg.unique, karg.unique_len))
ret = -EFAULT;
if (put_user(karg.unique_len, &uarg->unique_len))
ret = -EFAULT;
}
kfree(karg.unique);
return ret;
}
typedef struct drm32_map {
u32 offset; /* Requested physical address (0 for SAREA)*/
u32 size; /* Requested physical size (bytes) */
drm_map_type_t type; /* Type of memory to map */
drm_map_flags_t flags; /* Flags */
u32 handle; /* User-space: "Handle" to pass to mmap */
/* Kernel-space: kernel-virtual address */
int mtrr; /* MTRR slot used */
/* Private data */
} drm32_map_t;
#define DRM32_IOCTL_ADD_MAP DRM_IOWR(0x15, drm32_map_t)
static int drm32_addmap(unsigned int fd, unsigned int cmd, unsigned long arg)
{
drm32_map_t *uarg = (drm32_map_t *) arg;
drm_map_t karg;
mm_segment_t old_fs;
u32 tmp;
int ret;
ret = get_user(karg.offset, &uarg->offset);
ret |= get_user(karg.size, &uarg->size);
ret |= get_user(karg.type, &uarg->type);
ret |= get_user(karg.flags, &uarg->flags);
ret |= get_user(tmp, &uarg->handle);
ret |= get_user(karg.mtrr, &uarg->mtrr);
if (ret)
return -EFAULT;
karg.handle = (void *) A(tmp);
old_fs = get_fs();
set_fs(KERNEL_DS);
ret = sys_ioctl(fd, DRM_IOCTL_ADD_MAP, (unsigned long) &karg);
set_fs(old_fs);
if (!ret) {
ret = put_user(karg.offset, &uarg->offset);
ret |= put_user(karg.size, &uarg->size);
ret |= put_user(karg.type, &uarg->type);
ret |= put_user(karg.flags, &uarg->flags);
tmp = (u32) (long)karg.handle;
ret |= put_user(tmp, &uarg->handle);
ret |= put_user(karg.mtrr, &uarg->mtrr);
if (ret)
ret = -EFAULT;
}
return ret;
}
typedef struct drm32_buf_info {
int count; /* Entries in list */
u32 list; /* (drm_buf_desc_t *) */
} drm32_buf_info_t;
#define DRM32_IOCTL_INFO_BUFS DRM_IOWR(0x18, drm32_buf_info_t)
static int drm32_info_bufs(unsigned int fd, unsigned int cmd, unsigned long arg)
{
drm32_buf_info_t *uarg = (drm32_buf_info_t *)arg;
drm_buf_desc_t *ulist;
drm_buf_info_t karg;
mm_segment_t old_fs;
int orig_count, ret;
u32 tmp;
if (get_user(karg.count, &uarg->count) ||
get_user(tmp, &uarg->list))
return -EFAULT;
ulist = (drm_buf_desc_t *) A(tmp);
orig_count = karg.count;
karg.list = kmalloc(karg.count * sizeof(drm_buf_desc_t), GFP_KERNEL);
if (!karg.list)
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
ret = sys_ioctl(fd, DRM_IOCTL_INFO_BUFS, (unsigned long) &karg);
set_fs(old_fs);
if (!ret) {
if (karg.count <= orig_count &&
(copy_to_user(ulist, karg.list,
karg.count * sizeof(drm_buf_desc_t))))
ret = -EFAULT;
if (put_user(karg.count, &uarg->count))
ret = -EFAULT;
}
kfree(karg.list);
return ret;
}
typedef struct drm32_buf_free {
int count;
u32 list; /* (int *) */
} drm32_buf_free_t;
#define DRM32_IOCTL_FREE_BUFS DRM_IOW( 0x1a, drm32_buf_free_t)
static int drm32_free_bufs(unsigned int fd, unsigned int cmd, unsigned long arg)
{
drm32_buf_free_t *uarg = (drm32_buf_free_t *)arg;
drm_buf_free_t karg;
mm_segment_t old_fs;
int *ulist;
int ret;
u32 tmp;
if (get_user(karg.count, &uarg->count) ||
get_user(tmp, &uarg->list))
return -EFAULT;
ulist = (int *) A(tmp);
karg.list = kmalloc(karg.count * sizeof(int), GFP_KERNEL);
if (!karg.list)
return -ENOMEM;
ret = -EFAULT;
if (copy_from_user(karg.list, ulist, (karg.count * sizeof(int))))
goto out;
old_fs = get_fs();
set_fs(KERNEL_DS);
ret = sys_ioctl(fd, DRM_IOCTL_FREE_BUFS, (unsigned long) &karg);
set_fs(old_fs);
out:
kfree(karg.list);
return ret;
}
typedef struct drm32_buf_pub {
int idx; /* Index into master buflist */
int total; /* Buffer size */
int used; /* Amount of buffer in use (for DMA) */
u32 address; /* Address of buffer (void *) */
} drm32_buf_pub_t;
typedef struct drm32_buf_map {
int count; /* Length of buflist */
u32 virtual; /* Mmaped area in user-virtual (void *) */
u32 list; /* Buffer information (drm_buf_pub_t *) */
} drm32_buf_map_t;
#define DRM32_IOCTL_MAP_BUFS DRM_IOWR(0x19, drm32_buf_map_t)
static int drm32_map_bufs(unsigned int fd, unsigned int cmd, unsigned long arg)
{
drm32_buf_map_t *uarg = (drm32_buf_map_t *)arg;
drm32_buf_pub_t *ulist;
drm_buf_map_t karg;
mm_segment_t old_fs;
int orig_count, ret, i;
u32 tmp1, tmp2;
if (get_user(karg.count, &uarg->count) ||
get_user(tmp1, &uarg->virtual) ||
get_user(tmp2, &uarg->list))
return -EFAULT;
karg.virtual = (void *) A(tmp1);
ulist = (drm32_buf_pub_t *) A(tmp2);
orig_count = karg.count;
karg.list = kmalloc(karg.count * sizeof(drm_buf_pub_t), GFP_KERNEL);
if (!karg.list)
return -ENOMEM;
ret = -EFAULT;
for (i = 0; i < karg.count; i++) {
if (get_user(karg.list[i].idx, &ulist[i].idx) ||
get_user(karg.list[i].total, &ulist[i].total) ||
get_user(karg.list[i].used, &ulist[i].used) ||
get_user(tmp1, &ulist[i].address))
goto out;
karg.list[i].address = (void *) A(tmp1);
}
old_fs = get_fs();
set_fs(KERNEL_DS);
ret = sys_ioctl(fd, DRM_IOCTL_MAP_BUFS, (unsigned long) &karg);
set_fs(old_fs);
if (!ret) {
for (i = 0; i < orig_count; i++) {
tmp1 = (u32) (long) karg.list[i].address;
if (put_user(karg.list[i].idx, &ulist[i].idx) ||
put_user(karg.list[i].total, &ulist[i].total) ||
put_user(karg.list[i].used, &ulist[i].used) ||
put_user(tmp1, &ulist[i].address)) {
ret = -EFAULT;
goto out;
}
}
if (put_user(karg.count, &uarg->count))
ret = -EFAULT;
}
out:
kfree(karg.list);
return ret;
}
typedef struct drm32_dma {
/* Indices here refer to the offset into
buflist in drm_buf_get_t. */
int context; /* Context handle */
int send_count; /* Number of buffers to send */
u32 send_indices; /* List of handles to buffers (int *) */
u32 send_sizes; /* Lengths of data to send (int *) */
drm_dma_flags_t flags; /* Flags */
int request_count; /* Number of buffers requested */
int request_size; /* Desired size for buffers */
u32 request_indices; /* Buffer information (int *) */
u32 request_sizes; /* (int *) */
int granted_count; /* Number of buffers granted */
} drm32_dma_t;
#define DRM32_IOCTL_DMA DRM_IOWR(0x29, drm32_dma_t)
/* RED PEN The DRM layer blindly dereferences the send/request
* indice/size arrays even though they are userland
* pointers. -DaveM
*/
static int drm32_dma(unsigned int fd, unsigned int cmd, unsigned long arg)
{
drm32_dma_t *uarg = (drm32_dma_t *) arg;
int *u_si, *u_ss, *u_ri, *u_rs;
drm_dma_t karg;
mm_segment_t old_fs;
int ret;
u32 tmp1, tmp2, tmp3, tmp4;
karg.send_indices = karg.send_sizes = NULL;
karg.request_indices = karg.request_sizes = NULL;
if (get_user(karg.context, &uarg->context) ||
get_user(karg.send_count, &uarg->send_count) ||
get_user(tmp1, &uarg->send_indices) ||
get_user(tmp2, &uarg->send_sizes) ||
get_user(karg.flags, &uarg->flags) ||
get_user(karg.request_count, &uarg->request_count) ||
get_user(karg.request_size, &uarg->request_size) ||
get_user(tmp3, &uarg->request_indices) ||
get_user(tmp4, &uarg->request_sizes) ||
get_user(karg.granted_count, &uarg->granted_count))
return -EFAULT;
u_si = (int *) A(tmp1);
u_ss = (int *) A(tmp2);
u_ri = (int *) A(tmp3);
u_rs = (int *) A(tmp4);
if (karg.send_count) {
karg.send_indices = kmalloc(karg.send_count * sizeof(int), GFP_KERNEL);
karg.send_sizes = kmalloc(karg.send_count * sizeof(int), GFP_KERNEL);
ret = -ENOMEM;
if (!karg.send_indices || !karg.send_sizes)
goto out;
ret = -EFAULT;
if (copy_from_user(karg.send_indices, u_si,
(karg.send_count * sizeof(int))) ||
copy_from_user(karg.send_sizes, u_ss,
(karg.send_count * sizeof(int))))
goto out;
}
if (karg.request_count) {
karg.request_indices = kmalloc(karg.request_count * sizeof(int), GFP_KERNEL);
karg.request_sizes = kmalloc(karg.request_count * sizeof(int), GFP_KERNEL);
ret = -ENOMEM;
if (!karg.request_indices || !karg.request_sizes)
goto out;
ret = -EFAULT;
if (copy_from_user(karg.request_indices, u_ri,
(karg.request_count * sizeof(int))) ||
copy_from_user(karg.request_sizes, u_rs,
(karg.request_count * sizeof(int))))
goto out;
}
old_fs = get_fs();
set_fs(KERNEL_DS);
ret = sys_ioctl(fd, DRM_IOCTL_DMA, (unsigned long) &karg);
set_fs(old_fs);
if (!ret) {
if (put_user(karg.context, &uarg->context) ||
put_user(karg.send_count, &uarg->send_count) ||
put_user(karg.flags, &uarg->flags) ||
put_user(karg.request_count, &uarg->request_count) ||
put_user(karg.request_size, &uarg->request_size) ||
put_user(karg.granted_count, &uarg->granted_count))
ret = -EFAULT;
if (karg.send_count) {
if (copy_to_user(u_si, karg.send_indices,
(karg.send_count * sizeof(int))) ||
copy_to_user(u_ss, karg.send_sizes,
(karg.send_count * sizeof(int))))
ret = -EFAULT;
}
if (karg.request_count) {
if (copy_to_user(u_ri, karg.request_indices,
(karg.request_count * sizeof(int))) ||
copy_to_user(u_rs, karg.request_sizes,
(karg.request_count * sizeof(int))))
ret = -EFAULT;
}
}
out:
kfree(karg.send_indices);
kfree(karg.send_sizes);
kfree(karg.request_indices);
kfree(karg.request_sizes);
return ret;
}
typedef struct drm32_ctx_res {
int count;
u32 contexts; /* (drm_ctx_t *) */
} drm32_ctx_res_t;
#define DRM32_IOCTL_RES_CTX DRM_IOWR(0x26, drm32_ctx_res_t)
static int drm32_res_ctx(unsigned int fd, unsigned int cmd, unsigned long arg)
{
drm32_ctx_res_t *uarg = (drm32_ctx_res_t *) arg;
drm_ctx_t *ulist;
drm_ctx_res_t karg;
mm_segment_t old_fs;
int orig_count, ret;
u32 tmp;
karg.contexts = NULL;
if (get_user(karg.count, &uarg->count) ||
get_user(tmp, &uarg->contexts))
return -EFAULT;
ulist = (drm_ctx_t *) A(tmp);
orig_count = karg.count;
if (karg.count && ulist) {
karg.contexts = kmalloc((karg.count * sizeof(drm_ctx_t)), GFP_KERNEL);
if (!karg.contexts)
return -ENOMEM;
if (copy_from_user(karg.contexts, ulist,
(karg.count * sizeof(drm_ctx_t)))) {
kfree(karg.contexts);
return -EFAULT;
}
}
old_fs = get_fs();
set_fs(KERNEL_DS);
ret = sys_ioctl(fd, DRM_IOCTL_RES_CTX, (unsigned long) &karg);
set_fs(old_fs);
if (!ret) {
if (orig_count) {
if (copy_to_user(ulist, karg.contexts,
(orig_count * sizeof(drm_ctx_t))))
ret = -EFAULT;
}
if (put_user(karg.count, &uarg->count))
ret = -EFAULT;
}
kfree(karg.contexts);
return ret;
}
#endif
#define HANDLE_IOCTL(cmd, handler) { cmd, (ioctl_trans_handler_t)handler, NULL },
#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL(cmd, sys_ioctl)
@ -561,11 +31,6 @@ IOCTL_TABLE_START
#define DECLARES
#include "compat_ioctl.c"
/* PA-specific ioctls */
COMPATIBLE_IOCTL(PA_PERF_ON)
COMPATIBLE_IOCTL(PA_PERF_OFF)
COMPATIBLE_IOCTL(PA_PERF_VERSION)
/* And these ioctls need translation */
HANDLE_IOCTL(SIOCGPPPSTATS, dev_ifsioc)
HANDLE_IOCTL(SIOCGPPPCSTATS, dev_ifsioc)
@ -590,17 +55,6 @@ HANDLE_IOCTL(RTC_EPOCH_READ, w_long)
COMPATIBLE_IOCTL(RTC_EPOCH_SET)
#endif
#if defined(CONFIG_DRM) || defined(CONFIG_DRM_MODULE)
HANDLE_IOCTL(DRM32_IOCTL_VERSION, drm32_version);
HANDLE_IOCTL(DRM32_IOCTL_GET_UNIQUE, drm32_getsetunique);
HANDLE_IOCTL(DRM32_IOCTL_SET_UNIQUE, drm32_getsetunique);
HANDLE_IOCTL(DRM32_IOCTL_ADD_MAP, drm32_addmap);
HANDLE_IOCTL(DRM32_IOCTL_INFO_BUFS, drm32_info_bufs);
HANDLE_IOCTL(DRM32_IOCTL_FREE_BUFS, drm32_free_bufs);
HANDLE_IOCTL(DRM32_IOCTL_MAP_BUFS, drm32_map_bufs);
HANDLE_IOCTL(DRM32_IOCTL_DMA, drm32_dma);
HANDLE_IOCTL(DRM32_IOCTL_RES_CTX, drm32_res_ctx);
#endif /* DRM */
IOCTL_TABLE_END
int ioctl_table_size = ARRAY_SIZE(ioctl_start);

110
arch/parisc/kernel/irq.c
View file

@ -30,6 +30,9 @@
#include <linux/seq_file.h>
#include <linux/spinlock.h>
#include <linux/types.h>
#include <asm/io.h>
#include <asm/smp.h>
#undef PARISC_IRQ_CR16_COUNTS
@ -43,26 +46,34 @@ extern irqreturn_t ipi_interrupt(int, void *, struct pt_regs *);
*/
static volatile unsigned long cpu_eiem = 0;
static void cpu_set_eiem(void *info)
{
set_eiem((unsigned long) info);
}
static inline void cpu_disable_irq(unsigned int irq)
static void cpu_disable_irq(unsigned int irq)
{
unsigned long eirr_bit = EIEM_MASK(irq);
cpu_eiem &= ~eirr_bit;
on_each_cpu(cpu_set_eiem, (void *) cpu_eiem, 1, 1);
/* Do nothing on the other CPUs. If they get this interrupt,
* The & cpu_eiem in the do_cpu_irq_mask() ensures they won't
* handle it, and the set_eiem() at the bottom will ensure it
* then gets disabled */
}
static void cpu_enable_irq(unsigned int irq)
{
unsigned long eirr_bit = EIEM_MASK(irq);
mtctl(eirr_bit, 23); /* clear EIRR bit before unmasking */
cpu_eiem |= eirr_bit;
on_each_cpu(cpu_set_eiem, (void *) cpu_eiem, 1, 1);
/* FIXME: while our interrupts aren't nested, we cannot reset
* the eiem mask if we're already in an interrupt. Once we
* implement nested interrupts, this can go away
*/
if (!in_interrupt())
set_eiem(cpu_eiem);
/* This is just a simple NOP IPI. But what it does is cause
* all the other CPUs to do a set_eiem(cpu_eiem) at the end
* of the interrupt handler */
smp_send_all_nop();
}
static unsigned int cpu_startup_irq(unsigned int irq)
@ -74,6 +85,35 @@ static unsigned int cpu_startup_irq(unsigned int irq)
void no_ack_irq(unsigned int irq) { }
void no_end_irq(unsigned int irq) { }
#ifdef CONFIG_SMP
int cpu_check_affinity(unsigned int irq, cpumask_t *dest)
{
int cpu_dest;
/* timer and ipi have to always be received on all CPUs */
if (irq == TIMER_IRQ || irq == IPI_IRQ) {
/* Bad linux design decision. The mask has already
* been set; we must reset it */
irq_affinity[irq] = CPU_MASK_ALL;
return -EINVAL;
}
/* whatever mask they set, we just allow one CPU */
cpu_dest = first_cpu(*dest);
*dest = cpumask_of_cpu(cpu_dest);
return 0;
}
static void cpu_set_affinity_irq(unsigned int irq, cpumask_t dest)
{
if (cpu_check_affinity(irq, &dest))
return;
irq_affinity[irq] = dest;
}
#endif
static struct hw_interrupt_type cpu_interrupt_type = {
.typename = "CPU",
.startup = cpu_startup_irq,
@ -82,7 +122,9 @@ static struct hw_interrupt_type cpu_interrupt_type = {
.disable = cpu_disable_irq,
.ack = no_ack_irq,
.end = no_end_irq,
// .set_affinity = cpu_set_affinity_irq,
#ifdef CONFIG_SMP
.set_affinity = cpu_set_affinity_irq,
#endif
};
int show_interrupts(struct seq_file *p, void *v)
@ -219,6 +261,17 @@ int txn_alloc_irq(unsigned int bits_wide)
return -1;
}
unsigned long txn_affinity_addr(unsigned int irq, int cpu)
{
#ifdef CONFIG_SMP
irq_affinity[irq] = cpumask_of_cpu(cpu);
#endif
return cpu_data[cpu].txn_addr;
}
unsigned long txn_alloc_addr(unsigned int virt_irq)
{
static int next_cpu = -1;
@ -233,7 +286,7 @@ unsigned long txn_alloc_addr(unsigned int virt_irq)
if (next_cpu >= NR_CPUS)
next_cpu = 0; /* nothing else, assign monarch */
return cpu_data[next_cpu].txn_addr;
return txn_affinity_addr(virt_irq, next_cpu);
}
@ -250,10 +303,11 @@ void do_cpu_irq_mask(struct pt_regs *regs)
irq_enter();
/*
* Only allow interrupt processing to be interrupted by the
* timer tick
* Don't allow TIMER or IPI nested interrupts.
* Allowing any single interrupt to nest can lead to that CPU
* handling interrupts with all enabled interrupts unmasked.
*/
set_eiem(EIEM_MASK(TIMER_IRQ));
set_eiem(0UL);
/* 1) only process IRQs that are enabled/unmasked (cpu_eiem)
* 2) We loop here on EIRR contents in order to avoid
@ -267,23 +321,41 @@ void do_cpu_irq_mask(struct pt_regs *regs)
if (!eirr_val)
break;
if (eirr_val & EIEM_MASK(TIMER_IRQ))
set_eiem(0);
mtctl(eirr_val, 23); /* reset bits we are going to process */
/* Work our way from MSb to LSb...same order we alloc EIRs */
for (irq = TIMER_IRQ; eirr_val && bit; bit>>=1, irq++) {
#ifdef CONFIG_SMP
cpumask_t dest = irq_affinity[irq];
#endif
if (!(bit & eirr_val))
continue;
/* clear bit in mask - can exit loop sooner */
eirr_val &= ~bit;
#ifdef CONFIG_SMP
/* FIXME: because generic set affinity mucks
* with the affinity before sending it to us
* we can get the situation where the affinity is
* wrong for our CPU type interrupts */
if (irq != TIMER_IRQ && irq != IPI_IRQ &&
!cpu_isset(smp_processor_id(), dest)) {
int cpu = first_cpu(dest);
printk(KERN_DEBUG "redirecting irq %d from CPU %d to %d\n",
irq, smp_processor_id(), cpu);
gsc_writel(irq + CPU_IRQ_BASE,
cpu_data[cpu].hpa);
continue;
}
#endif
__do_IRQ(irq, regs);
}
}
set_eiem(cpu_eiem);
set_eiem(cpu_eiem); /* restore original mask */
irq_exit();
}
@ -291,12 +363,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
static struct irqaction timer_action = {
.handler = timer_interrupt,
.name = "timer",
.flags = SA_INTERRUPT,
};
#ifdef CONFIG_SMP
static struct irqaction ipi_action = {
.handler = ipi_interrupt,
.name = "IPI",
.flags = SA_INTERRUPT,
};
#endif

33
arch/parisc/kernel/perf.c
View file

@ -196,8 +196,7 @@ static int perf_open(struct inode *inode, struct file *file);
static ssize_t perf_read(struct file *file, char __user *buf, size_t cnt, loff_t *ppos);
static ssize_t perf_write(struct file *file, const char __user *buf, size_t count,
loff_t *ppos);
static int perf_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg);
static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
static void perf_start_counters(void);
static int perf_stop_counters(uint32_t *raddr);
static struct rdr_tbl_ent * perf_rdr_get_entry(uint32_t rdr_num);
@ -438,48 +437,56 @@ static void perf_patch_images(void)
* must be running on the processor that you wish to change.
*/
static int perf_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg)
static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
long error_start;
uint32_t raddr[4];
uint32_t raddr[4];
int error = 0;
lock_kernel();
switch (cmd) {
case PA_PERF_ON:
/* Start the counters */
perf_start_counters();
return 0;
break;
case PA_PERF_OFF:
error_start = perf_stop_counters(raddr);
if (error_start != 0) {
printk(KERN_ERR "perf_off: perf_stop_counters = %ld\n", error_start);
return -EFAULT;
error = -EFAULT;
break;
}
/* copy out the Counters */
if (copy_to_user((void __user *)arg, raddr,
sizeof (raddr)) != 0) {
return -EFAULT;
error = -EFAULT;
break;
}
return 0;
break;
case PA_PERF_VERSION:
/* Return the version # */
return put_user(PERF_VERSION, (int *)arg);
error = put_user(PERF_VERSION, (int *)arg);
break;
default:
break;
error = -ENOTTY;
}
return -ENOTTY;
unlock_kernel();
return error;
}
static struct file_operations perf_fops = {
.llseek = no_llseek,
.read = perf_read,
.write = perf_write,
.ioctl = perf_ioctl,
.unlocked_ioctl = perf_ioctl,
.compat_ioctl = perf_ioctl,
.open = perf_open,
.release = perf_release
};

5
arch/parisc/kernel/ptrace.c
View file

@ -264,6 +264,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
* sigkill. perhaps it should be put in the status
* that it wants to exit.
*/
ret = 0;
DBG("sys_ptrace(KILL)\n");
if (child->exit_state == EXIT_ZOMBIE) /* already dead */
goto out_tsk;
@ -344,11 +345,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
case PTRACE_GETEVENTMSG:
ret = put_user(child->ptrace_message, (unsigned int __user *) data);
goto out;
goto out_tsk;
default:
ret = ptrace_request(child, request, addr, data);
goto out;
goto out_tsk;
}
out_wake_notrap:

1
arch/parisc/kernel/signal.c
View file

@ -296,7 +296,6 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
struct rt_sigframe __user *frame;
unsigned long rp, usp;
unsigned long haddr, sigframe_size;
struct siginfo si;
int err = 0;
#ifdef __LP64__
compat_int_t compat_val;

24
arch/parisc/kernel/smp.c
View file

@ -181,12 +181,19 @@ ipi_interrupt(int irq, void *dev_id, struct pt_regs *regs)
while (ops) {
unsigned long which = ffz(~ops);
ops &= ~(1 << which);
switch (which) {
case IPI_NOP:
#if (kDEBUG>=100)
printk(KERN_DEBUG "CPU%d IPI_NOP\n",this_cpu);
#endif /* kDEBUG */
break;
case IPI_RESCHEDULE:
#if (kDEBUG>=100)
printk(KERN_DEBUG "CPU%d IPI_RESCHEDULE\n",this_cpu);
#endif /* kDEBUG */
ops &= ~(1 << IPI_RESCHEDULE);
/*
* Reschedule callback. Everything to be
* done is done by the interrupt return path.
@ -197,7 +204,6 @@ ipi_interrupt(int irq, void *dev_id, struct pt_regs *regs)
#if (kDEBUG>=100)
printk(KERN_DEBUG "CPU%d IPI_CALL_FUNC\n",this_cpu);
#endif /* kDEBUG */
ops &= ~(1 << IPI_CALL_FUNC);
{
volatile struct smp_call_struct *data;
void (*func)(void *info);
@ -231,7 +237,6 @@ ipi_interrupt(int irq, void *dev_id, struct pt_regs *regs)
#if (kDEBUG>=100)
printk(KERN_DEBUG "CPU%d IPI_CPU_START\n",this_cpu);
#endif /* kDEBUG */
ops &= ~(1 << IPI_CPU_START);
#ifdef ENTRY_SYS_CPUS
p->state = STATE_RUNNING;
#endif
@ -241,7 +246,6 @@ ipi_interrupt(int irq, void *dev_id, struct pt_regs *regs)
#if (kDEBUG>=100)
printk(KERN_DEBUG "CPU%d IPI_CPU_STOP\n",this_cpu);
#endif /* kDEBUG */
ops &= ~(1 << IPI_CPU_STOP);
#ifdef ENTRY_SYS_CPUS
#else
halt_processor();
@ -252,13 +256,11 @@ ipi_interrupt(int irq, void *dev_id, struct pt_regs *regs)
#if (kDEBUG>=100)
printk(KERN_DEBUG "CPU%d is alive!\n",this_cpu);
#endif /* kDEBUG */
ops &= ~(1 << IPI_CPU_TEST);
break;
default:
printk(KERN_CRIT "Unknown IPI num on CPU%d: %lu\n",
this_cpu, which);
ops &= ~(1 << which);
return IRQ_NONE;
} /* Switch */
} /* while (ops) */
@ -312,6 +314,12 @@ smp_send_start(void) { send_IPI_allbutself(IPI_CPU_START); }
void
smp_send_reschedule(int cpu) { send_IPI_single(cpu, IPI_RESCHEDULE); }
void
smp_send_all_nop(void)
{
send_IPI_allbutself(IPI_NOP);
}
/**
* Run a function on all other CPUs.
@ -338,6 +346,10 @@ smp_call_function (void (*func) (void *info), void *info, int retry, int wait)
/* Can deadlock when called with interrupts disabled */
WARN_ON(irqs_disabled());
/* can also deadlock if IPIs are disabled */
WARN_ON((get_eiem() & (1UL<<(CPU_IRQ_MAX - IPI_IRQ))) == 0);
data.func = func;
data.info = info;

3
arch/parisc/kernel/syscall.S
View file

@ -164,7 +164,7 @@ linux_gateway_entry:
#endif
STREG %r2, TASK_PT_GR30(%r1) /* ... and save it */
STREG %r20, TASK_PT_GR20(%r1)
STREG %r20, TASK_PT_GR20(%r1) /* Syscall number */
STREG %r21, TASK_PT_GR21(%r1)
STREG %r22, TASK_PT_GR22(%r1)
STREG %r23, TASK_PT_GR23(%r1) /* 4th argument */
@ -527,6 +527,7 @@ lws_compare_and_swap:
We *must* giveup this call and fail.
*/
ldw 4(%sr2,%r20), %r28 /* Load thread register */
/* WARNING: If cr27 cycles to the same value we have problems */
mfctl %cr27, %r21 /* Get current thread register */
cmpb,<>,n %r21, %r28, cas_lock /* Called recursive? */
b lws_exit /* Return error! */

2
drivers/ide/Kconfig
View file

@ -625,7 +625,7 @@ config BLK_DEV_NS87415
tristate "NS87415 chipset support"
help
This driver adds detection and support for the NS87415 chip
(used in SPARC64, among others).
(used mainly on SPARC64 and PA-RISC machines).
Please read the comments at the top of <file:drivers/ide/pci/ns87415.c>.

12
drivers/isdn/hisax/Kconfig
View file

@ -110,7 +110,7 @@ config HISAX_16_3
config HISAX_TELESPCI
bool "Teles PCI"
depends on PCI && (BROKEN || !(SPARC64 || PPC))
depends on PCI && (BROKEN || !(SPARC || PPC || PARISC || M68K))
help
This enables HiSax support for the Teles PCI.
See <file:Documentation/isdn/README.HiSax> on how to configure it.
@ -238,7 +238,7 @@ config HISAX_MIC
config HISAX_NETJET
bool "NETjet card"
depends on PCI && (BROKEN || !(SPARC64 || PPC))
depends on PCI && (BROKEN || !(SPARC || PPC || PARISC || M68K))
help
This enables HiSax support for the NetJet from Traverse
Technologies.
@ -249,7 +249,7 @@ config HISAX_NETJET
config HISAX_NETJET_U
bool "NETspider U card"
depends on PCI && (BROKEN || !(SPARC64 || PPC))
depends on PCI && (BROKEN || !(SPARC || PPC || PARISC || M68K))
help
This enables HiSax support for the Netspider U interface ISDN card
from Traverse Technologies.
@ -317,7 +317,7 @@ config HISAX_GAZEL
config HISAX_HFC_PCI
bool "HFC PCI-Bus cards"
depends on PCI && (BROKEN || !(SPARC64 || PPC))
depends on PCI && (BROKEN || !(SPARC || PPC || PARISC || M68K))
help
This enables HiSax support for the HFC-S PCI 2BDS0 based cards.
@ -344,14 +344,14 @@ config HISAX_HFC_SX
config HISAX_ENTERNOW_PCI
bool "Formula-n enter:now PCI card"
depends on PCI && (BROKEN || !(SPARC64 || PPC))
depends on PCI && (BROKEN || !(SPARC || PPC || PARISC || M68K))
help
This enables HiSax support for the Formula-n enter:now PCI
ISDN card.
config HISAX_AMD7930
bool "Am7930 (EXPERIMENTAL)"
depends on EXPERIMENTAL && (SPARC32 || SPARC64)
depends on EXPERIMENTAL && SPARC
help
This enables HiSax support for the AMD7930 chips on some SPARCs.
This code is not finished yet.

2
drivers/isdn/pcbit/Kconfig
View file

@ -3,7 +3,7 @@
#
config ISDN_DRV_PCBIT
tristate "PCBIT-D support"
depends on ISDN_I4L && ISA && (BROKEN || !PPC)
depends on ISDN_I4L && ISA && (BROKEN || X86)
help
This enables support for the PCBIT ISDN-card. This card is
manufactured in Portugal by Octal. For running this card,

26
drivers/parisc/iosapic.c
View file

@ -700,6 +700,28 @@ static unsigned int iosapic_startup_irq(unsigned int irq)
return 0;
}
#ifdef CONFIG_SMP
static void iosapic_set_affinity_irq(unsigned int irq, cpumask_t dest)
{
struct vector_info *vi = iosapic_get_vector(irq);
u32 d0, d1, dummy_d0;
unsigned long flags;
if (cpu_check_affinity(irq, &dest))
return;
vi->txn_addr = txn_affinity_addr(irq, first_cpu(dest));
spin_lock_irqsave(&iosapic_lock, flags);
/* d1 contains the destination CPU, so only want to set that
* entry */
iosapic_rd_irt_entry(vi, &d0, &d1);
iosapic_set_irt_data(vi, &dummy_d0, &d1);
iosapic_wr_irt_entry(vi, d0, d1);
spin_unlock_irqrestore(&iosapic_lock, flags);
}
#endif
static struct hw_interrupt_type iosapic_interrupt_type = {
.typename = "IO-SAPIC-level",
.startup = iosapic_startup_irq,
@ -708,7 +730,9 @@ static struct hw_interrupt_type iosapic_interrupt_type = {
.disable = iosapic_disable_irq,
.ack = no_ack_irq,
.end = iosapic_end_irq,
// .set_affinity = iosapic_set_affinity_irq,
#ifdef CONFIG_SMP
.set_affinity = iosapic_set_affinity_irq,
#endif
};
int iosapic_fixup_irq(void *isi_obj, struct pci_dev *pcidev)

35
drivers/parisc/superio.c
View file

@ -24,6 +24,9 @@
* Major changes to get basic interrupt infrastructure working to
* hopefully be able to support all SuperIO devices. Currently
* works with serial. -- John Marvin <jsm@fc.hp.com>
*
* Converted superio_init() to be a PCI_FIXUP_FINAL callee.
* -- Kyle McMartin <kyle@parisc-linux.org>
*/
@ -141,10 +144,10 @@ superio_interrupt(int parent_irq, void *devp, struct pt_regs *regs)
}
/* Initialize Super I/O device */
static void __devinit
superio_init(struct superio_device *sio)
static void
superio_init(struct pci_dev *pcidev)
{
struct superio_device *sio = &sio_dev;
struct pci_dev *pdev = sio->lio_pdev;
u16 word;
@ -160,8 +163,8 @@ superio_init(struct superio_device *sio)
/* ...then properly fixup the USB to point at suckyio PIC */
sio->usb_pdev->irq = superio_fixup_irq(sio->usb_pdev);
printk (KERN_INFO "SuperIO: Found NS87560 Legacy I/O device at %s (IRQ %i) \n",
pci_name(pdev),pdev->irq);
printk(KERN_INFO "SuperIO: Found NS87560 Legacy I/O device at %s (IRQ %i) \n",
pci_name(pdev), pdev->irq);
pci_read_config_dword (pdev, SIO_SP1BAR, &sio->sp1_base);
sio->sp1_base &= ~1;
@ -274,7 +277,7 @@ superio_init(struct superio_device *sio)
sio->suckyio_irq_enabled = 1;
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_LIO, superio_init);
static void superio_disable_irq(unsigned int irq)
{
@ -452,8 +455,10 @@ static void superio_fixup_pci(struct pci_dev *pdev)
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, superio_fixup_pci);
static int __devinit superio_probe(struct pci_dev *dev, const struct pci_device_id *id)
static int __devinit
superio_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
struct superio_device *sio = &sio_dev;
/*
** superio_probe(00:0e.0) ven 0x100b dev 0x2 sv 0x0 sd 0x0 class 0x1018a
@ -466,7 +471,8 @@ static int __devinit superio_probe(struct pci_dev *dev, const struct pci_device_
dev->subsystem_vendor, dev->subsystem_device,
dev->class);
superio_init(&sio_dev);
if (!sio->suckyio_irq_enabled)
BUG(); /* Enabled by PCI_FIXUP_FINAL */
if (dev->device == PCI_DEVICE_ID_NS_87560_LIO) { /* Function 1 */
superio_parport_init();
@ -481,19 +487,21 @@ static int __devinit superio_probe(struct pci_dev *dev, const struct pci_device_
DBG_INIT("superio_probe: WTF? Fire Extinguisher?\n");
}
/* Let appropriate other driver claim this device. */
/* Let appropriate other driver claim this device. */
return -ENODEV;
}
static struct pci_device_id superio_tbl[] = {
{ PCI_VENDOR_ID_NS, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_LIO) },
{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_USB) },
{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415) },
{ 0, }
};
static struct pci_driver superio_driver = {
.name = "SuperIO",
.id_table = superio_tbl,
.probe = superio_probe,
.name = "SuperIO",
.id_table = superio_tbl,
.probe = superio_probe,
};
static int __init superio_modinit(void)
@ -506,6 +514,5 @@ static void __exit superio_exit(void)
pci_unregister_driver(&superio_driver);
}
module_init(superio_modinit);
module_exit(superio_exit);

2
drivers/serial/Kconfig
View file

@ -507,7 +507,7 @@ config SERIAL_SUNSU_CONSOLE
config SERIAL_MUX
tristate "Serial MUX support"
depends on PARISC
depends on GSC
select SERIAL_CORE
default y
---help---

19
drivers/serial/mux.c
View file

@ -65,8 +65,8 @@ static struct uart_driver mux_driver = {
static struct timer_list mux_timer;
#define UART_PUT_CHAR(p, c) __raw_writel((c), (unsigned long)(p)->membase + IO_DATA_REG_OFFSET)
#define UART_GET_FIFO_CNT(p) __raw_readl((unsigned long)(p)->membase + IO_DCOUNT_REG_OFFSET)
#define UART_PUT_CHAR(p, c) __raw_writel((c), (p)->membase + IO_DATA_REG_OFFSET)
#define UART_GET_FIFO_CNT(p) __raw_readl((p)->membase + IO_DCOUNT_REG_OFFSET)
#define GET_MUX_PORTS(iodc_data) ((((iodc_data)[4] & 0xf0) >> 4) * 8) + 8
/**
@ -79,10 +79,7 @@ static struct timer_list mux_timer;
*/
static unsigned int mux_tx_empty(struct uart_port *port)
{
unsigned int cnt = __raw_readl((unsigned long)port->membase
+ IO_DCOUNT_REG_OFFSET);
return cnt ? 0 : TIOCSER_TEMT;
return UART_GET_FIFO_CNT(port) ? 0 : TIOCSER_TEMT;
}
/**
@ -218,8 +215,7 @@ static void mux_read(struct uart_port *port)
__u32 start_count = port->icount.rx;
while(1) {
data = __raw_readl((unsigned long)port->membase
+ IO_DATA_REG_OFFSET);
data = __raw_readl(port->membase + IO_DATA_REG_OFFSET);
if (MUX_STATUS(data))
continue;
@ -481,6 +477,13 @@ static int __init mux_probe(struct parisc_device *dev)
port->ops = &mux_pops;
port->flags = UPF_BOOT_AUTOCONF;
port->line = port_cnt;
/* The port->timeout needs to match what is present in
* uart_wait_until_sent in serial_core.c. Otherwise
* the time spent in msleep_interruptable will be very
* long, causing the appearance of a console hang.
*/
port->timeout = HZ / 50;
spin_lock_init(&port->lock);
status = uart_add_one_port(&mux_driver, port);
BUG_ON(status);

5
include/asm-parisc/irq.h
View file

@ -8,6 +8,7 @@
#define _ASM_PARISC_IRQ_H
#include <linux/config.h>
#include <linux/cpumask.h>
#include <asm/types.h>
#define NO_IRQ (-1)
@ -49,10 +50,10 @@ extern int txn_alloc_irq(unsigned int nbits);
extern int txn_claim_irq(int);
extern unsigned int txn_alloc_data(unsigned int);
extern unsigned long txn_alloc_addr(unsigned int);
extern unsigned long txn_affinity_addr(unsigned int irq, int cpu);
extern int cpu_claim_irq(unsigned int irq, struct hw_interrupt_type *, void *);
extern int cpu_claim_irq(unsigned int irq, struct hw_interrupt_type *, void *);
extern int cpu_check_affinity(unsigned int irq, cpumask_t *dest);
/* soft power switch support (power.c) */
extern struct tasklet_struct power_tasklet;

7
include/asm-parisc/smp.h
View file

@ -29,6 +29,7 @@ extern cpumask_t cpu_online_map;
#define cpu_logical_map(cpu) (cpu)
extern void smp_send_reschedule(int cpu);
extern void smp_send_all_nop(void);
#endif /* !ASSEMBLY */
@ -53,7 +54,11 @@ extern unsigned long cpu_present_mask;
#define raw_smp_processor_id() (current_thread_info()->cpu)
#endif /* CONFIG_SMP */
#else /* CONFIG_SMP */
static inline void smp_send_all_nop(void) { return; }
#endif
#define NO_PROC_ID 0xFF /* No processor magic marker */
#define ANY_PROC_ID 0xFF /* Any processor magic marker */

19
include/asm-parisc/spinlock.h
View file

@ -11,18 +11,25 @@ static inline int __raw_spin_is_locked(raw_spinlock_t *x)
return *a == 0;
}
#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
#define __raw_spin_lock(lock) __raw_spin_lock_flags(lock, 0)
#define __raw_spin_unlock_wait(x) \
do { cpu_relax(); } while (__raw_spin_is_locked(x))
static inline void __raw_spin_lock(raw_spinlock_t *x)
static inline void __raw_spin_lock_flags(raw_spinlock_t *x,
unsigned long flags)
{
volatile unsigned int *a;
mb();
a = __ldcw_align(x);
while (__ldcw(a) == 0)
while (*a == 0);
while (*a == 0)
if (flags & PSW_SM_I) {
local_irq_enable();
cpu_relax();
local_irq_disable();
} else
cpu_relax();
mb();
}
@ -60,26 +67,20 @@ static inline int __raw_spin_trylock(raw_spinlock_t *x)
static __inline__ void __raw_read_lock(raw_rwlock_t *rw)
{
unsigned long flags;
local_irq_save(flags);
__raw_spin_lock(&rw->lock);
rw->counter++;
__raw_spin_unlock(&rw->lock);
local_irq_restore(flags);
}
static __inline__ void __raw_read_unlock(raw_rwlock_t *rw)
{
unsigned long flags;
local_irq_save(flags);
__raw_spin_lock(&rw->lock);
rw->counter--;
__raw_spin_unlock(&rw->lock);
local_irq_restore(flags);
}
/* write_lock is less trivial. We optimistically grab the lock and check

16
include/asm-parisc/tlbflush.h
View file

@ -12,21 +12,15 @@
* N class systems, only one PxTLB inter processor broadcast can be
* active at any one time on the Merced bus. This tlb purge
* synchronisation is fairly lightweight and harmless so we activate
* it on all SMP systems not just the N class. */
#ifdef CONFIG_SMP
* it on all SMP systems not just the N class. We also need to have
* preemption disabled on uniprocessor machines, and spin_lock does that
* nicely.
*/
extern spinlock_t pa_tlb_lock;
#define purge_tlb_start(x) spin_lock(&pa_tlb_lock)
#define purge_tlb_end(x) spin_unlock(&pa_tlb_lock)
#else
#define purge_tlb_start(x) do { } while(0)
#define purge_tlb_end(x) do { } while (0)
#endif
extern void flush_tlb_all(void);
/*
@ -88,7 +82,6 @@ static inline void flush_tlb_range(struct vm_area_struct *vma,
if (npages >= 512) /* 2MB of space: arbitrary, should be tuned */
flush_tlb_all();
else {
preempt_disable();
mtsp(vma->vm_mm->context,1);
purge_tlb_start();
if (split_tlb) {
@ -102,7 +95,6 @@ static inline void flush_tlb_range(struct vm_area_struct *vma,
pdtlb(start);
start += PAGE_SIZE;
}
preempt_enable();
}
purge_tlb_end();
}

2
include/linux/mm.h
View file

@ -940,7 +940,9 @@ unsigned long max_sane_readahead(unsigned long nr);
/* Do stack extension */
extern int expand_stack(struct vm_area_struct *vma, unsigned long address);
#ifdef CONFIG_IA64
extern int expand_upwards(struct vm_area_struct *vma, unsigned long address);
#endif
/* Look up the first VMA which satisfies addr < vm_end, NULL if none. */
extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long addr);

2
mm/mmap.c
View file

@ -1501,7 +1501,7 @@ static int acct_stack_growth(struct vm_area_struct * vma, unsigned long size, un
* PA-RISC uses this for its stack; IA64 for its Register Backing Store.
* vma is the last one with address > vma->vm_end. Have to extend vma.
*/
#ifdef CONFIG_STACK_GROWSUP
#ifndef CONFIG_IA64
static inline
#endif
int expand_upwards(struct vm_area_struct *vma, unsigned long address)