diff options
Diffstat (limited to 'drivers')
25 files changed, 1027 insertions, 392 deletions
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 158eed4..29b7a64 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -49,7 +49,6 @@ #include <linux/types.h> #include <linux/kernel.h> #include <linux/kthread.h> -#include <linux/smp_lock.h> #include <linux/errno.h> #include <linux/spinlock.h> #include <linux/file.h> @@ -2798,14 +2797,9 @@ out_mem: return ret; } -static long pkt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +static int pkt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { - struct inode *inode = file->f_path.dentry->d_inode; - struct pktcdvd_device *pd; - long ret; - - lock_kernel(); - pd = inode->i_bdev->bd_disk->private_data; + struct pktcdvd_device *pd = inode->i_bdev->bd_disk->private_data; VPRINTK("pkt_ioctl: cmd %x, dev %d:%d\n", cmd, imajor(inode), iminor(inode)); @@ -2818,8 +2812,7 @@ static long pkt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case CDROM_LAST_WRITTEN: case CDROM_SEND_PACKET: case SCSI_IOCTL_SEND_COMMAND: - ret = blkdev_ioctl(pd->bdev->bd_inode, file, cmd, arg); - break; + return blkdev_ioctl(pd->bdev->bd_inode, file, cmd, arg); case CDROMEJECT: /* @@ -2828,15 +2821,14 @@ static long pkt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) */ if (pd->refcnt == 1) pkt_lock_door(pd, 0); - ret = blkdev_ioctl(pd->bdev->bd_inode, file, cmd, arg); - break; + return blkdev_ioctl(pd->bdev->bd_inode, file, cmd, arg); default: VPRINTK(DRIVER_NAME": Unknown ioctl for %s (%x)\n", pd->name, cmd); - ret = -ENOTTY; + return -ENOTTY; } - unlock_kernel(); - return ret; + + return 0; } static int pkt_media_changed(struct gendisk *disk) @@ -2858,7 +2850,7 @@ static struct block_device_operations pktcdvd_ops = { .owner = THIS_MODULE, .open = pkt_open, .release = pkt_close, - .unlocked_ioctl = pkt_ioctl, + .ioctl = pkt_ioctl, .media_changed = pkt_media_changed, }; @@ -3023,8 +3015,7 @@ static void pkt_get_status(struct pkt_ctrl_command *ctrl_cmd) mutex_unlock(&ctl_mutex); } -static long pkt_ctl_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) +static int pkt_ctl_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { void __user *argp = (void __user *)arg; struct pkt_ctrl_command ctrl_cmd; @@ -3041,22 +3032,16 @@ static long pkt_ctl_ioctl(struct file *file, unsigned int cmd, case PKT_CTRL_CMD_SETUP: if (!capable(CAP_SYS_ADMIN)) return -EPERM; - lock_kernel(); ret = pkt_setup_dev(new_decode_dev(ctrl_cmd.dev), &pkt_dev); ctrl_cmd.pkt_dev = new_encode_dev(pkt_dev); - unlock_kernel(); break; case PKT_CTRL_CMD_TEARDOWN: if (!capable(CAP_SYS_ADMIN)) return -EPERM; - lock_kernel(); ret = pkt_remove_dev(new_decode_dev(ctrl_cmd.pkt_dev)); - unlock_kernel(); break; case PKT_CTRL_CMD_STATUS: - lock_kernel(); pkt_get_status(&ctrl_cmd); - unlock_kernel(); break; default: return -ENOTTY; @@ -3069,7 +3054,7 @@ static long pkt_ctl_ioctl(struct file *file, unsigned int cmd, static const struct file_operations pkt_ctl_fops = { - .unlocked_ioctl = pkt_ctl_ioctl, + .ioctl = pkt_ctl_ioctl, .owner = THIS_MODULE, }; diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index a27160b..daeb8f7 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -2498,7 +2498,7 @@ static int tiocgwinsz(struct tty_struct *tty, struct winsize __user *arg) /** * tty_do_resize - resize event * @tty: tty being resized - * @real_tty: real tty (if using a pty/tty pair) + * @real_tty: real tty (not the same as tty if using a pty/tty pair) * @rows: rows (character) * @cols: cols (character) * @@ -2512,7 +2512,8 @@ int tty_do_resize(struct tty_struct *tty, struct tty_struct *real_tty, struct pid *pgrp, *rpgrp; unsigned long flags; - mutex_lock(&tty->termios_mutex); + /* For a PTY we need to lock the tty side */ + mutex_lock(&real_tty->termios_mutex); if (!memcmp(ws, &tty->winsize, sizeof(*ws))) goto done; /* Get the PID values and reference them so we can @@ -2533,7 +2534,7 @@ int tty_do_resize(struct tty_struct *tty, struct tty_struct *real_tty, tty->winsize = *ws; real_tty->winsize = *ws; done: - mutex_unlock(&tty->termios_mutex); + mutex_unlock(&real_tty->termios_mutex); return 0; } diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c index ea9fc5d..bf34e45 100644 --- a/drivers/char/tty_ioctl.c +++ b/drivers/char/tty_ioctl.c @@ -937,12 +937,14 @@ int tty_mode_ioctl(struct tty_struct *tty, struct file *file, return 0; #endif case TIOCGSOFTCAR: - return put_user(C_CLOCAL(tty) ? 1 : 0, + /* FIXME: for correctness we may need to take the termios + lock here - review */ + return put_user(C_CLOCAL(real_tty) ? 1 : 0, (int __user *)arg); case TIOCSSOFTCAR: if (get_user(arg, (unsigned int __user *) arg)) return -EFAULT; - return tty_change_softcar(tty, arg); + return tty_change_softcar(real_tty, arg); default: return -ENOIOCTLCMD; } diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 089c015..53f0e5a 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -400,27 +400,31 @@ static void drm_locked_tasklet_func(unsigned long data) { struct drm_device *dev = (struct drm_device *)data; unsigned long irqflags; - + void (*tasklet_func)(struct drm_device *); + spin_lock_irqsave(&dev->tasklet_lock, irqflags); + tasklet_func = dev->locked_tasklet_func; + spin_unlock_irqrestore(&dev->tasklet_lock, irqflags); - if (!dev->locked_tasklet_func || + if (!tasklet_func || !drm_lock_take(&dev->lock, DRM_KERNEL_CONTEXT)) { - spin_unlock_irqrestore(&dev->tasklet_lock, irqflags); return; } dev->lock.lock_time = jiffies; atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); - dev->locked_tasklet_func(dev); + spin_lock_irqsave(&dev->tasklet_lock, irqflags); + tasklet_func = dev->locked_tasklet_func; + dev->locked_tasklet_func = NULL; + spin_unlock_irqrestore(&dev->tasklet_lock, irqflags); + + if (tasklet_func != NULL) + tasklet_func(dev); drm_lock_free(&dev->lock, DRM_KERNEL_CONTEXT); - - dev->locked_tasklet_func = NULL; - - spin_unlock_irqrestore(&dev->tasklet_lock, irqflags); } /** diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c index 0998723..a4caf95 100644 --- a/drivers/gpu/drm/drm_lock.c +++ b/drivers/gpu/drm/drm_lock.c @@ -105,14 +105,19 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) ret ? "interrupted" : "has lock"); if (ret) return ret; - sigemptyset(&dev->sigmask); - sigaddset(&dev->sigmask, SIGSTOP); - sigaddset(&dev->sigmask, SIGTSTP); - sigaddset(&dev->sigmask, SIGTTIN); - sigaddset(&dev->sigmask, SIGTTOU); - dev->sigdata.context = lock->context; - dev->sigdata.lock = dev->lock.hw_lock; - block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask); + /* don't set the block all signals on the master process for now + * really probably not the correct answer but lets us debug xkb + * xserver for now */ + if (!file_priv->master) { + sigemptyset(&dev->sigmask); + sigaddset(&dev->sigmask, SIGSTOP); + sigaddset(&dev->sigmask, SIGTSTP); + sigaddset(&dev->sigmask, SIGTTIN); + sigaddset(&dev->sigmask, SIGTTOU); + dev->sigdata.context = lock->context; + dev->sigdata.lock = dev->lock.hw_lock; + block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask); + } if (dev->driver->dma_ready && (lock->flags & _DRM_LOCK_READY)) dev->driver->dma_ready(dev); @@ -150,6 +155,7 @@ int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_lock *lock = data; unsigned long irqflags; + void (*tasklet_func)(struct drm_device *); if (lock->context == DRM_KERNEL_CONTEXT) { DRM_ERROR("Process %d using kernel context %d\n", @@ -158,14 +164,11 @@ int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv) } spin_lock_irqsave(&dev->tasklet_lock, irqflags); - - if (dev->locked_tasklet_func) { - dev->locked_tasklet_func(dev); - - dev->locked_tasklet_func = NULL; - } - + tasklet_func = dev->locked_tasklet_func; + dev->locked_tasklet_func = NULL; spin_unlock_irqrestore(&dev->tasklet_lock, irqflags); + if (tasklet_func != NULL) + tasklet_func(dev); atomic_inc(&dev->counts[_DRM_STAT_UNLOCKS]); diff --git a/drivers/gpu/drm/radeon/r300_cmdbuf.c b/drivers/gpu/drm/radeon/r300_cmdbuf.c index 702df45..4b27d9a 100644 --- a/drivers/gpu/drm/radeon/r300_cmdbuf.c +++ b/drivers/gpu/drm/radeon/r300_cmdbuf.c @@ -77,6 +77,9 @@ static int r300_emit_cliprects(drm_radeon_private_t *dev_priv, return -EFAULT; } + box.x2--; /* Hardware expects inclusive bottom-right corner */ + box.y2--; + if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV515) { box.x1 = (box.x1) & R300_CLIPRECT_MASK; @@ -95,8 +98,8 @@ static int r300_emit_cliprects(drm_radeon_private_t *dev_priv, R300_CLIPRECT_MASK; box.y2 = (box.y2 + R300_CLIPRECT_OFFSET) & R300_CLIPRECT_MASK; - } + OUT_RING((box.x1 << R300_CLIPRECT_X_SHIFT) | (box.y1 << R300_CLIPRECT_Y_SHIFT)); OUT_RING((box.x2 << R300_CLIPRECT_X_SHIFT) | @@ -136,6 +139,18 @@ static int r300_emit_cliprects(drm_radeon_private_t *dev_priv, ADVANCE_RING(); } + /* flus cache and wait idle clean after cliprect change */ + BEGIN_RING(2); + OUT_RING(CP_PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0)); + OUT_RING(R300_RB3D_DC_FLUSH); + ADVANCE_RING(); + BEGIN_RING(2); + OUT_RING(CP_PACKET0(RADEON_WAIT_UNTIL, 0)); + OUT_RING(RADEON_WAIT_3D_IDLECLEAN); + ADVANCE_RING(); + /* set flush flag */ + dev_priv->track_flush |= RADEON_FLUSH_EMITED; + return 0; } @@ -166,13 +181,13 @@ void r300_init_reg_flags(struct drm_device *dev) ADD_RANGE(0x21DC, 1); ADD_RANGE(R300_VAP_UNKNOWN_221C, 1); ADD_RANGE(R300_VAP_CLIP_X_0, 4); - ADD_RANGE(R300_VAP_PVS_WAITIDLE, 1); + ADD_RANGE(R300_VAP_PVS_STATE_FLUSH_REG, 1); ADD_RANGE(R300_VAP_UNKNOWN_2288, 1); ADD_RANGE(R300_VAP_OUTPUT_VTX_FMT_0, 2); ADD_RANGE(R300_VAP_PVS_CNTL_1, 3); ADD_RANGE(R300_GB_ENABLE, 1); ADD_RANGE(R300_GB_MSPOS0, 5); - ADD_RANGE(R300_TX_CNTL, 1); + ADD_RANGE(R300_TX_INVALTAGS, 1); ADD_RANGE(R300_TX_ENABLE, 1); ADD_RANGE(0x4200, 4); ADD_RANGE(0x4214, 1); @@ -388,15 +403,28 @@ static __inline__ int r300_emit_vpu(drm_radeon_private_t *dev_priv, if (sz * 16 > cmdbuf->bufsz) return -EINVAL; - BEGIN_RING(5 + sz * 4); - /* Wait for VAP to come to senses.. */ - /* there is no need to emit it multiple times, (only once before VAP is programmed, - but this optimization is for later */ - OUT_RING_REG(R300_VAP_PVS_WAITIDLE, 0); + /* VAP is very sensitive so we purge cache before we program it + * and we also flush its state before & after */ + BEGIN_RING(6); + OUT_RING(CP_PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0)); + OUT_RING(R300_RB3D_DC_FLUSH); + OUT_RING(CP_PACKET0(RADEON_WAIT_UNTIL, 0)); + OUT_RING(RADEON_WAIT_3D_IDLECLEAN); + OUT_RING(CP_PACKET0(R300_VAP_PVS_STATE_FLUSH_REG, 0)); + OUT_RING(0); + ADVANCE_RING(); + /* set flush flag */ + dev_priv->track_flush |= RADEON_FLUSH_EMITED; + + BEGIN_RING(3 + sz * 4); OUT_RING_REG(R300_VAP_PVS_UPLOAD_ADDRESS, addr); OUT_RING(CP_PACKET0_TABLE(R300_VAP_PVS_UPLOAD_DATA, sz * 4 - 1)); OUT_RING_TABLE((int *)cmdbuf->buf, sz * 4); + ADVANCE_RING(); + BEGIN_RING(2); + OUT_RING(CP_PACKET0(R300_VAP_PVS_STATE_FLUSH_REG, 0)); + OUT_RING(0); ADVANCE_RING(); cmdbuf->buf += sz * 16; @@ -424,6 +452,15 @@ static __inline__ int r300_emit_clear(drm_radeon_private_t *dev_priv, OUT_RING_TABLE((int *)cmdbuf->buf, 8); ADVANCE_RING(); + BEGIN_RING(4); + OUT_RING(CP_PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0)); + OUT_RING(R300_RB3D_DC_FLUSH); + OUT_RING(CP_PACKET0(RADEON_WAIT_UNTIL, 0)); + OUT_RING(RADEON_WAIT_3D_IDLECLEAN); + ADVANCE_RING(); + /* set flush flag */ + dev_priv->track_flush |= RADEON_FLUSH_EMITED; + cmdbuf->buf += 8 * 4; cmdbuf->bufsz -= 8 * 4; @@ -543,22 +580,23 @@ static __inline__ int r300_emit_bitblt_multi(drm_radeon_private_t *dev_priv, return 0; } -static __inline__ int r300_emit_indx_buffer(drm_radeon_private_t *dev_priv, - drm_radeon_kcmd_buffer_t *cmdbuf) +static __inline__ int r300_emit_draw_indx_2(drm_radeon_private_t *dev_priv, + drm_radeon_kcmd_buffer_t *cmdbuf) { - u32 *cmd = (u32 *) cmdbuf->buf; - int count, ret; + u32 *cmd; + int count; + int expected_count; RING_LOCALS; - count=(cmd[0]>>16) & 0x3fff; + cmd = (u32 *) cmdbuf->buf; + count = (cmd[0]>>16) & 0x3fff; + expected_count = cmd[1] >> 16; + if (!(cmd[1] & R300_VAP_VF_CNTL__INDEX_SIZE_32bit)) + expected_count = (expected_count+1)/2; - if ((cmd[1] & 0x8000ffff) != 0x80000810) { - DRM_ERROR("Invalid indx_buffer reg address %08X\n", cmd[1]); - return -EINVAL; - } - ret = !radeon_check_offset(dev_priv, cmd[2]); - if (ret) { - DRM_ERROR("Invalid indx_buffer offset is %08X\n", cmd[2]); + if (count && count != expected_count) { + DRM_ERROR("3D_DRAW_INDX_2: packet size %i, expected %i\n", + count, expected_count); return -EINVAL; } @@ -570,6 +608,50 @@ static __inline__ int r300_emit_indx_buffer(drm_radeon_private_t *dev_priv, cmdbuf->buf += (count+2)*4; cmdbuf->bufsz -= (count+2)*4; + if (!count) { + drm_r300_cmd_header_t header; + + if (cmdbuf->bufsz < 4*4 + sizeof(header)) { + DRM_ERROR("3D_DRAW_INDX_2: expect subsequent INDX_BUFFER, but stream is too short.\n"); + return -EINVAL; + } + + header.u = *(unsigned int *)cmdbuf->buf; + + cmdbuf->buf += sizeof(header); + cmdbuf->bufsz -= sizeof(header); + cmd = (u32 *) cmdbuf->buf; + + if (header.header.cmd_type != R300_CMD_PACKET3 || + header.packet3.packet != R300_CMD_PACKET3_RAW || + cmd[0] != CP_PACKET3(RADEON_CP_INDX_BUFFER, 2)) { + DRM_ERROR("3D_DRAW_INDX_2: expect subsequent INDX_BUFFER.\n"); + return -EINVAL; + } + + if ((cmd[1] & 0x8000ffff) != 0x80000810) { + DRM_ERROR("Invalid indx_buffer reg address %08X\n", cmd[1]); + return -EINVAL; + } + if (!radeon_check_offset(dev_priv, cmd[2])) { + DRM_ERROR("Invalid indx_buffer offset is %08X\n", cmd[2]); + return -EINVAL; + } + if (cmd[3] != expected_count) { + DRM_ERROR("INDX_BUFFER: buffer size %i, expected %i\n", + cmd[3], expected_count); + return -EINVAL; + } + + BEGIN_RING(4); + OUT_RING(cmd[0]); + OUT_RING_TABLE((int *)(cmdbuf->buf + 4), 3); + ADVANCE_RING(); + + cmdbuf->buf += 4*4; + cmdbuf->bufsz -= 4*4; + } + return 0; } @@ -613,11 +695,22 @@ static __inline__ int r300_emit_raw_packet3(drm_radeon_private_t *dev_priv, case RADEON_CNTL_BITBLT_MULTI: return r300_emit_bitblt_multi(dev_priv, cmdbuf); - case RADEON_CP_INDX_BUFFER: /* DRAW_INDX_2 without INDX_BUFFER seems to lock up the gpu */ - return r300_emit_indx_buffer(dev_priv, cmdbuf); - case RADEON_CP_3D_DRAW_IMMD_2: /* triggers drawing using in-packet vertex data */ - case RADEON_CP_3D_DRAW_VBUF_2: /* triggers drawing of vertex buffers setup elsewhere */ - case RADEON_CP_3D_DRAW_INDX_2: /* triggers drawing using indices to vertex buffer */ + case RADEON_CP_INDX_BUFFER: + DRM_ERROR("packet3 INDX_BUFFER without preceding 3D_DRAW_INDX_2 is illegal.\n"); + return -EINVAL; + case RADEON_CP_3D_DRAW_IMMD_2: + /* triggers drawing using in-packet vertex data */ + case RADEON_CP_3D_DRAW_VBUF_2: + /* triggers drawing of vertex buffers setup elsewhere */ + dev_priv->track_flush &= ~(RADEON_FLUSH_EMITED | + RADEON_PURGE_EMITED); + break; + case RADEON_CP_3D_DRAW_INDX_2: + /* triggers drawing using indices to vertex buffer */ + /* whenever we send vertex we clear flush & purge */ + dev_priv->track_flush &= ~(RADEON_FLUSH_EMITED | + RADEON_PURGE_EMITED); + return r300_emit_draw_indx_2(dev_priv, cmdbuf); case RADEON_WAIT_FOR_IDLE: case RADEON_CP_NOP: /* these packets are safe */ @@ -713,17 +806,53 @@ static __inline__ int r300_emit_packet3(drm_radeon_private_t *dev_priv, */ static __inline__ void r300_pacify(drm_radeon_private_t *dev_priv) { + uint32_t cache_z, cache_3d, cache_2d; RING_LOCALS; - BEGIN_RING(6); - OUT_RING(CP_PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0)); - OUT_RING(R300_RB3D_DSTCACHE_UNKNOWN_0A); + cache_z = R300_ZC_FLUSH; + cache_2d = R300_RB2D_DC_FLUSH; + cache_3d = R300_RB3D_DC_FLUSH; + if (!(dev_priv->track_flush & RADEON_PURGE_EMITED)) { + /* we can purge, primitive where draw since last purge */ + cache_z |= R300_ZC_FREE; + cache_2d |= R300_RB2D_DC_FREE; + cache_3d |= R300_RB3D_DC_FREE; + } + + /* flush & purge zbuffer */ + BEGIN_RING(2); OUT_RING(CP_PACKET0(R300_ZB_ZCACHE_CTLSTAT, 0)); - OUT_RING(R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE| - R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE); - OUT_RING(CP_PACKET3(RADEON_CP_NOP, 0)); - OUT_RING(0x0); + OUT_RING(cache_z); + ADVANCE_RING(); + /* flush & purge 3d */ + BEGIN_RING(2); + OUT_RING(CP_PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0)); + OUT_RING(cache_3d); + ADVANCE_RING(); + /* flush & purge texture */ + BEGIN_RING(2); + OUT_RING(CP_PACKET0(R300_TX_INVALTAGS, 0)); + OUT_RING(0); + ADVANCE_RING(); + /* FIXME: is this one really needed ? */ + BEGIN_RING(2); + OUT_RING(CP_PACKET0(R300_RB3D_AARESOLVE_CTL, 0)); + OUT_RING(0); + ADVANCE_RING(); + BEGIN_RING(2); + OUT_RING(CP_PACKET0(RADEON_WAIT_UNTIL, 0)); + OUT_RING(RADEON_WAIT_3D_IDLECLEAN); + ADVANCE_RING(); + /* flush & purge 2d through E2 as RB2D will trigger lockup */ + BEGIN_RING(4); + OUT_RING(CP_PACKET0(R300_DSTCACHE_CTLSTAT, 0)); + OUT_RING(cache_2d); + OUT_RING(CP_PACKET0(RADEON_WAIT_UNTIL, 0)); + OUT_RING(RADEON_WAIT_2D_IDLECLEAN | + RADEON_WAIT_HOST_IDLECLEAN); ADVANCE_RING(); + /* set flush & purge flags */ + dev_priv->track_flush |= RADEON_FLUSH_EMITED | RADEON_PURGE_EMITED; } /** @@ -905,8 +1034,7 @@ int r300_do_cp_cmdbuf(struct drm_device *dev, DRM_DEBUG("\n"); - /* See the comment above r300_emit_begin3d for why this call must be here, - * and what the cleanup gotos are for. */ + /* pacify */ r300_pacify(dev_priv); if (cmdbuf->nbox <= R300_SIMULTANEOUS_CLIPRECTS) { diff --git a/drivers/gpu/drm/radeon/r300_reg.h b/drivers/gpu/drm/radeon/r300_reg.h index a6802f2..ee6f811 100644 --- a/drivers/gpu/drm/radeon/r300_reg.h +++ b/drivers/gpu/drm/radeon/r300_reg.h @@ -317,7 +317,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. * Therefore, I suspect writing zero to 0x2284 synchronizes the engine and * avoids bugs caused by still running shaders reading bad data from memory. */ -#define R300_VAP_PVS_WAITIDLE 0x2284 /* GUESS */ +#define R300_VAP_PVS_STATE_FLUSH_REG 0x2284 /* Absolutely no clue what this register is about. */ #define R300_VAP_UNKNOWN_2288 0x2288 @@ -513,7 +513,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. /* gap */ /* Zero to flush caches. */ -#define R300_TX_CNTL 0x4100 +#define R300_TX_INVALTAGS 0x4100 #define R300_TX_FLUSH 0x0 /* The upper enable bits are guessed, based on fglrx reported limits. */ @@ -1362,6 +1362,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. #define R300_RB3D_COLORPITCH2 0x4E40 /* GUESS */ #define R300_RB3D_COLORPITCH3 0x4E44 /* GUESS */ +#define R300_RB3D_AARESOLVE_CTL 0x4E88 /* gap */ /* Guess by Vladimir. diff --git a/drivers/gpu/drm/radeon/radeon_cp.c b/drivers/gpu/drm/radeon/radeon_cp.c index f0de81a..3331f88 100644 --- a/drivers/gpu/drm/radeon/radeon_cp.c +++ b/drivers/gpu/drm/radeon/radeon_cp.c @@ -40,6 +40,7 @@ #define RADEON_FIFO_DEBUG 0 static int radeon_do_cleanup_cp(struct drm_device * dev); +static void radeon_do_cp_start(drm_radeon_private_t * dev_priv); static u32 R500_READ_MCIND(drm_radeon_private_t *dev_priv, int addr) { @@ -198,23 +199,8 @@ static int radeon_do_pixcache_flush(drm_radeon_private_t * dev_priv) DRM_UDELAY(1); } } else { - /* 3D */ - tmp = RADEON_READ(R300_RB3D_DSTCACHE_CTLSTAT); - tmp |= RADEON_RB3D_DC_FLUSH_ALL; - RADEON_WRITE(R300_RB3D_DSTCACHE_CTLSTAT, tmp); - - /* 2D */ - tmp = RADEON_READ(R300_DSTCACHE_CTLSTAT); - tmp |= RADEON_RB3D_DC_FLUSH_ALL; - RADEON_WRITE(R300_DSTCACHE_CTLSTAT, tmp); - - for (i = 0; i < dev_priv->usec_timeout; i++) { - if (!(RADEON_READ(R300_DSTCACHE_CTLSTAT) - & RADEON_RB3D_DC_BUSY)) { - return 0; - } - DRM_UDELAY(1); - } + /* don't flush or purge cache here or lockup */ + return 0; } #if RADEON_FIFO_DEBUG @@ -237,6 +223,9 @@ static int radeon_do_wait_for_fifo(drm_radeon_private_t * dev_priv, int entries) return 0; DRM_UDELAY(1); } + DRM_INFO("wait for fifo failed status : 0x%08X 0x%08X\n", + RADEON_READ(RADEON_RBBM_STATUS), + RADEON_READ(R300_VAP_CNTL_STATUS)); #if RADEON_FIFO_DEBUG DRM_ERROR("failed!\n"); @@ -263,6 +252,9 @@ static int radeon_do_wait_for_idle(drm_radeon_private_t * dev_priv) } DRM_UDELAY(1); } + DRM_INFO("wait idle failed status : 0x%08X 0x%08X\n", + RADEON_READ(RADEON_RBBM_STATUS), + RADEON_READ(R300_VAP_CNTL_STATUS)); #if RADEON_FIFO_DEBUG DRM_ERROR("failed!\n"); @@ -443,14 +435,20 @@ static void radeon_do_cp_start(drm_radeon_private_t * dev_priv) dev_priv->cp_running = 1; - BEGIN_RING(6); - + BEGIN_RING(8); + /* isync can only be written through cp on r5xx write it here */ + OUT_RING(CP_PACKET0(RADEON_ISYNC_CNTL, 0)); + OUT_RING(RADEON_ISYNC_ANY2D_IDLE3D | + RADEON_ISYNC_ANY3D_IDLE2D | + RADEON_ISYNC_WAIT_IDLEGUI | + RADEON_ISYNC_CPSCRATCH_IDLEGUI); RADEON_PURGE_CACHE(); RADEON_PURGE_ZCACHE(); RADEON_WAIT_UNTIL_IDLE(); - ADVANCE_RING(); COMMIT_RING(); + + dev_priv->track_flush |= RADEON_FLUSH_EMITED | RADEON_PURGE_EMITED; } /* Reset the Command Processor. This will not flush any pending diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h index 3f0eca9..0993816 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.h +++ b/drivers/gpu/drm/radeon/radeon_drv.h @@ -220,6 +220,9 @@ struct radeon_virt_surface { struct drm_file *file_priv; }; +#define RADEON_FLUSH_EMITED (1 < 0) +#define RADEON_PURGE_EMITED (1 < 1) + typedef struct drm_radeon_private { drm_radeon_ring_buffer_t ring; drm_radeon_sarea_t *sarea_priv; @@ -311,6 +314,7 @@ typedef struct drm_radeon_private { unsigned long fb_aper_offset; int num_gb_pipes; + int track_flush; } drm_radeon_private_t; typedef struct drm_radeon_buf_priv { @@ -693,7 +697,6 @@ extern int r300_do_cp_cmdbuf(struct drm_device * dev, #define R300_ZB_ZCACHE_CTLSTAT 0x4f18 # define R300_ZC_FLUSH (1 << 0) # define R300_ZC_FREE (1 << 1) -# define R300_ZC_FLUSH_ALL 0x3 # define R300_ZC_BUSY (1 << 31) #define RADEON_RB3D_DSTCACHE_CTLSTAT 0x325c # define RADEON_RB3D_DC_FLUSH (3 << 0) @@ -701,6 +704,8 @@ extern int r300_do_cp_cmdbuf(struct drm_device * dev, # define RADEON_RB3D_DC_FLUSH_ALL 0xf # define RADEON_RB3D_DC_BUSY (1 << 31) #define R300_RB3D_DSTCACHE_CTLSTAT 0x4e4c +# define R300_RB3D_DC_FLUSH (2 << 0) +# define R300_RB3D_DC_FREE (2 << 2) # define R300_RB3D_DC_FINISH (1 << 4) #define RADEON_RB3D_ZSTENCILCNTL 0x1c2c # define RADEON_Z_TEST_MASK (7 << 4) @@ -1246,17 +1251,17 @@ do { \ OUT_RING(RADEON_RB3D_DC_FLUSH); \ } else { \ OUT_RING(CP_PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0)); \ - OUT_RING(RADEON_RB3D_DC_FLUSH); \ + OUT_RING(R300_RB3D_DC_FLUSH); \ } \ } while (0) #define RADEON_PURGE_CACHE() do { \ if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV280) { \ OUT_RING(CP_PACKET0(RADEON_RB3D_DSTCACHE_CTLSTAT, 0)); \ - OUT_RING(RADEON_RB3D_DC_FLUSH_ALL); \ + OUT_RING(RADEON_RB3D_DC_FLUSH | RADEON_RB3D_DC_FREE); \ } else { \ OUT_RING(CP_PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0)); \ - OUT_RING(RADEON_RB3D_DC_FLUSH_ALL); \ + OUT_RING(R300_RB3D_DC_FLUSH | R300_RB3D_DC_FREE); \ } \ } while (0) @@ -1273,10 +1278,10 @@ do { \ #define RADEON_PURGE_ZCACHE() do { \ if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV280) { \ OUT_RING(CP_PACKET0(RADEON_RB3D_ZCACHE_CTLSTAT, 0)); \ - OUT_RING(RADEON_RB3D_ZC_FLUSH_ALL); \ + OUT_RING(RADEON_RB3D_ZC_FLUSH | RADEON_RB3D_ZC_FREE); \ } else { \ - OUT_RING(CP_PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0)); \ - OUT_RING(R300_ZC_FLUSH_ALL); \ + OUT_RING(CP_PACKET0(R300_ZB_ZCACHE_CTLSTAT, 0)); \ + OUT_RING(R300_ZC_FLUSH | R300_ZC_FREE); \ } \ } while (0) diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c index a4cdb46..87f5c5a 100644 --- a/drivers/infiniband/hw/mlx4/mr.c +++ b/drivers/infiniband/hw/mlx4/mr.c @@ -204,6 +204,8 @@ struct ib_mr *mlx4_ib_alloc_fast_reg_mr(struct ib_pd *pd, if (err) goto err_mr; + mr->ibmr.rkey = mr->ibmr.lkey = mr->mmr.key; + return &mr->ibmr; err_mr: diff --git a/drivers/net/e1000/e1000_param.c b/drivers/net/e1000/e1000_param.c index b9f90a5..213437d 100644 --- a/drivers/net/e1000/e1000_param.c +++ b/drivers/net/e1000/e1000_param.c @@ -208,7 +208,7 @@ struct e1000_option { } r; struct { /* list_option info */ int nr; - struct e1000_opt_list { int i; char *str; } *p; + const struct e1000_opt_list { int i; char *str; } *p; } l; } arg; }; @@ -242,7 +242,7 @@ static int __devinit e1000_validate_option(unsigned int *value, break; case list_option: { int i; - struct e1000_opt_list *ent; + const struct e1000_opt_list *ent; for (i = 0; i < opt->arg.l.nr; i++) { ent = &opt->arg.l.p[i]; @@ -279,7 +279,9 @@ static void e1000_check_copper_options(struct e1000_adapter *adapter); void __devinit e1000_check_options(struct e1000_adapter *adapter) { + struct e1000_option opt; int bd = adapter->bd_number; + if (bd >= E1000_MAX_NIC) { DPRINTK(PROBE, NOTICE, "Warning: no configuration for board #%i\n", bd); @@ -287,19 +289,21 @@ void __devinit e1000_check_options(struct e1000_adapter *adapter) } { /* Transmit Descriptor Count */ - struct e1000_option opt = { + struct e1000_tx_ring *tx_ring = adapter->tx_ring; + int i; + e1000_mac_type mac_type = adapter->hw.mac_type; + + opt = (struct e1000_option) { .type = range_option, .name = "Transmit Descriptors", .err = "using default of " __MODULE_STRING(E1000_DEFAULT_TXD), .def = E1000_DEFAULT_TXD, - .arg = { .r = { .min = E1000_MIN_TXD }} + .arg = { .r = { + .min = E1000_MIN_TXD, + .max = mac_type < e1000_82544 ? E1000_MAX_TXD : E1000_MAX_82544_TXD + }} }; - struct e1000_tx_ring *tx_ring = adapter->tx_ring; - int i; - e1000_mac_type mac_type = adapter->hw.mac_type; - opt.arg.r.max = mac_type < e1000_82544 ? - E1000_MAX_TXD : E1000_MAX_82544_TXD; if (num_TxDescriptors > bd) { tx_ring->count = TxDescriptors[bd]; @@ -313,19 +317,21 @@ void __devinit e1000_check_options(struct e1000_adapter *adapter) tx_ring[i].count = tx_ring->count; } { /* Receive Descriptor Count */ - struct e1000_option opt = { + struct e1000_rx_ring *rx_ring = adapter->rx_ring; + int i; + e1000_mac_type mac_type = adapter->hw.mac_type; + + opt = (struct e1000_option) { .type = range_option, .name = "Receive Descriptors", .err = "using default of " __MODULE_STRING(E1000_DEFAULT_RXD), .def = E1000_DEFAULT_RXD, - .arg = { .r = { .min = E1000_MIN_RXD }} + .arg = { .r = { + .min = E1000_MIN_RXD, + .max = mac_type < e1000_82544 ? E1000_MAX_RXD : E1000_MAX_82544_RXD + }} }; - struct e1000_rx_ring *rx_ring = adapter->rx_ring; - int i; - e1000_mac_type mac_type = adapter->hw.mac_type; - opt.arg.r.max = mac_type < e1000_82544 ? E1000_MAX_RXD : - E1000_MAX_82544_RXD; if (num_RxDescriptors > bd) { rx_ring->count = RxDescriptors[bd]; @@ -339,7 +345,7 @@ void __devinit e1000_check_options(struct e1000_adapter *adapter) rx_ring[i].count = rx_ring->count; } { /* Checksum Offload Enable/Disable */ - struct e1000_option opt = { + opt = (struct e1000_option) { .type = enable_option, .name = "Checksum Offload", .err = "defaulting to Enabled", @@ -363,7 +369,7 @@ void __devinit e1000_check_options(struct e1000_adapter *adapter) { E1000_FC_FULL, "Flow Control Enabled" }, { E1000_FC_DEFAULT, "Flow Control Hardware Default" }}; - struct e1000_option opt = { + opt = (struct e1000_option) { .type = list_option, .name = "Flow Control", .err = "reading default settings from EEPROM", @@ -381,7 +387,7 @@ void __devinit e1000_check_options(struct e1000_adapter *adapter) } } { /* Transmit Interrupt Delay */ - struct e1000_option opt = { + opt = (struct e1000_option) { .type = range_option, .name = "Transmit Interrupt Delay", .err = "using default of " __MODULE_STRING(DEFAULT_TIDV), @@ -399,7 +405,7 @@ void __devinit e1000_check_options(struct e1000_adapter *adapter) } } { /* Transmit Absolute Interrupt Delay */ - struct e1000_option opt = { + opt = (struct e1000_option) { .type = range_option, .name = "Transmit Absolute Interrupt Delay", .err = "using default of " __MODULE_STRING(DEFAULT_TADV), @@ -417,7 +423,7 @@ void __devinit e1000_check_options(struct e1000_adapter *adapter) } } { /* Receive Interrupt Delay */ - struct e1000_option opt = { + opt = (struct e1000_option) { .type = range_option, .name = "Receive Interrupt Delay", .err = "using default of " __MODULE_STRING(DEFAULT_RDTR), @@ -435,7 +441,7 @@ void __devinit e1000_check_options(struct e1000_adapter *adapter) } } { /* Receive Absolute Interrupt Delay */ - struct e1000_option opt = { + opt = (struct e1000_option) { .type = range_option, .name = "Receive Absolute Interrupt Delay", .err = "using default of " __MODULE_STRING(DEFAULT_RADV), @@ -453,7 +459,7 @@ void __devinit e1000_check_options(struct e1000_adapter *adapter) } } { /* Interrupt Throttling Rate */ - struct e1000_option opt = { + opt = (struct e1000_option) { .type = range_option, .name = "Interrupt Throttling Rate (ints/sec)", .err = "using default of " __MODULE_STRING(DEFAULT_ITR), @@ -497,7 +503,7 @@ void __devinit e1000_check_options(struct e1000_adapter *adapter) } } { /* Smart Power Down */ - struct e1000_option opt = { + opt = (struct e1000_option) { .type = enable_option, .name = "PHY Smart Power Down", .err = "defaulting to Disabled", @@ -513,7 +519,7 @@ void __devinit e1000_check_options(struct e1000_adapter *adapter) } } { /* Kumeran Lock Loss Workaround */ - struct e1000_option opt = { + opt = (struct e1000_option) { .type = enable_option, .name = "Kumeran Lock Loss Workaround", .err = "defaulting to Enabled", @@ -578,16 +584,18 @@ static void __devinit e1000_check_fiber_options(struct e1000_adapter *adapter) static void __devinit e1000_check_copper_options(struct e1000_adapter *adapter) { + struct e1000_option opt; unsigned int speed, dplx, an; int bd = adapter->bd_number; { /* Speed */ - struct e1000_opt_list speed_list[] = {{ 0, "" }, - { SPEED_10, "" }, - { SPEED_100, "" }, - { SPEED_1000, "" }}; + static const struct e1000_opt_list speed_list[] = { + { 0, "" }, + { SPEED_10, "" }, + { SPEED_100, "" }, + { SPEED_1000, "" }}; - struct e1000_option opt = { + opt = (struct e1000_option) { .type = list_option, .name = "Speed", .err = "parameter ignored", @@ -604,11 +612,12 @@ static void __devinit e1000_check_copper_options(struct e1000_adapter *adapter) } } { /* Duplex */ - struct e1000_opt_list dplx_list[] = {{ 0, "" }, - { HALF_DUPLEX, "" }, - { FULL_DUPLEX, "" }}; + static const struct e1000_opt_list dplx_list[] = { + { 0, "" }, + { HALF_DUPLEX, "" }, + { FULL_DUPLEX, "" }}; - struct e1000_option opt = { + opt = (struct e1000_option) { .type = list_option, .name = "Duplex", .err = "parameter ignored", @@ -637,7 +646,7 @@ static void __devinit e1000_check_copper_options(struct e1000_adapter *adapter) "parameter ignored\n"); adapter->hw.autoneg_advertised = AUTONEG_ADV_DEFAULT; } else { /* Autoneg */ - struct e1000_opt_list an_list[] = + static const struct e1000_opt_list an_list[] = #define AA "AutoNeg advertising " {{ 0x01, AA "10/HD" }, { 0x02, AA "10/FD" }, @@ -671,7 +680,7 @@ static void __devinit e1000_check_copper_options(struct e1000_adapter *adapter) { 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" }, { 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }}; - struct e1000_option opt = { + opt = (struct e1000_option) { .type = list_option, .name = "AutoNeg", .err = "parameter ignored", diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c index 2450b3a..7ba78e6 100644 --- a/drivers/oprofile/cpu_buffer.c +++ b/drivers/oprofile/cpu_buffer.c @@ -38,8 +38,10 @@ void free_cpu_buffers(void) { int i; - for_each_online_cpu(i) + for_each_online_cpu(i) { vfree(per_cpu(cpu_buffer, i).buffer); + per_cpu(cpu_buffer, i).buffer = NULL; + } } int alloc_cpu_buffers(void) diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c index e7fbac5..8d692a5 100644 --- a/drivers/oprofile/event_buffer.c +++ b/drivers/oprofile/event_buffer.c @@ -93,6 +93,8 @@ out: void free_event_buffer(void) { vfree(event_buffer); + + event_buffer = NULL; } diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c index db85f1f..711b300 100644 --- a/drivers/s390/block/dcssblk.c +++ b/drivers/s390/block/dcssblk.c @@ -384,9 +384,10 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char * get minor, add to list */ down_write(&dcssblk_devices_sem); - if (dcssblk_get_segment_by_name(local_buf)) { + if (dcssblk_get_device_by_name(local_buf)) { + up_write(&dcssblk_devices_sem); rc = -EEXIST; - goto release_gd; + goto unload_seg; } rc = dcssblk_assign_free_minor(dev_info); if (rc) { diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 3d36270..661f9f2 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -217,6 +217,18 @@ static int sg_last_dev(void); #define SZ_SG_IOVEC sizeof(sg_iovec_t) #define SZ_SG_REQ_INFO sizeof(sg_req_info_t) +static int sg_allow_access(struct file *filp, unsigned char *cmd) +{ + struct sg_fd *sfp = (struct sg_fd *)filp->private_data; + struct request_queue *q = sfp->parentdp->device->request_queue; + + if (sfp->parentdp->device->type == TYPE_SCANNER) + return 0; + + return blk_verify_command(&q->cmd_filter, + cmd, filp->f_mode & FMODE_WRITE); +} + static int sg_open(struct inode *inode, struct file *filp) { @@ -689,7 +701,7 @@ sg_new_write(Sg_fd *sfp, struct file *file, const char __user *buf, sg_remove_request(sfp, srp); return -EFAULT; } - if (read_only && !blk_verify_command(file, cmnd)) { + if (read_only && sg_allow_access(file, cmnd)) { sg_remove_request(sfp, srp); return -EPERM; } @@ -793,6 +805,7 @@ sg_ioctl(struct inode *inode, struct file *filp, if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) return -ENXIO; + SCSI_LOG_TIMEOUT(3, printk("sg_ioctl: %s, cmd=0x%x\n", sdp->disk->disk_name, (int) cmd_in)); read_only = (O_RDWR != (filp->f_flags & O_ACCMODE)); @@ -1061,7 +1074,7 @@ sg_ioctl(struct inode *inode, struct file *filp, if (copy_from_user(&opcode, siocp->data, 1)) return -EFAULT; - if (!blk_verify_command(filp, &opcode)) + if (sg_allow_access(filp, &opcode)) return -EPERM; } return sg_scsi_ioctl(filp, sdp->device->request_queue, NULL, p); diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index db20542..c510367 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -465,6 +465,16 @@ config PC87413_WDT Most people will say N. +config RDC321X_WDT + tristate "RDC R-321x SoC watchdog" + depends on X86_RDC321X + help + This is the driver for the built in hardware watchdog + in the RDC R-321x SoC. + + To compile this driver as a module, choose M here: the + module will be called rdc321x_wdt. + config 60XX_WDT tristate "SBC-60XX Watchdog Timer" depends on X86 @@ -633,6 +643,16 @@ config SBC_EPX_C3_WATCHDOG # MIPS Architecture +config RC32434_WDT + tristate "IDT RC32434 SoC Watchdog Timer" + depends on MIKROTIK_RB532 + help + Hardware driver for the IDT RC32434 SoC built-in + watchdog timer. + + To compile this driver as a module, choose M here: the + module will be called rc32434_wdt. + config INDYDOG tristate "Indy/I2 Hardware Watchdog" depends on SGI_HAS_INDYDOG @@ -692,10 +712,6 @@ config MPC5200_WDT tristate "MPC5200 Watchdog Timer" depends on PPC_MPC52xx -config 8xx_WDT - tristate "MPC8xx Watchdog Timer" - depends on 8xx - config 8xxx_WDT tristate "MPC8xxx Platform Watchdog Timer" depends on PPC_8xx || PPC_83xx || PPC_86xx diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index ca3dc04..e0ef123 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -75,6 +75,7 @@ obj-$(CONFIG_HP_WATCHDOG) += hpwdt.o obj-$(CONFIG_SC1200_WDT) += sc1200wdt.o obj-$(CONFIG_SCx200_WDT) += scx200_wdt.o obj-$(CONFIG_PC87413_WDT) += pc87413_wdt.o +obj-$(CONFIG_RDC321X_WDT) += rdc321x_wdt.o obj-$(CONFIG_60XX_WDT) += sbc60xxwdt.o obj-$(CONFIG_SBC8360_WDT) += sbc8360.o obj-$(CONFIG_SBC7240_WDT) += sbc7240_wdt.o @@ -94,6 +95,7 @@ obj-$(CONFIG_SBC_EPX_C3_WATCHDOG) += sbc_epx_c3.o # M68KNOMMU Architecture # MIPS Architecture +obj-$(CONFIG_RC32434_WDT) += rc32434_wdt.o obj-$(CONFIG_INDYDOG) += indydog.o obj-$(CONFIG_WDT_MTX1) += mtx-1_wdt.o obj-$(CONFIG_WDT_RM9K_GPI) += rm9k_wdt.o @@ -104,7 +106,6 @@ obj-$(CONFIG_TXX9_WDT) += txx9wdt.o # PARISC Architecture # POWERPC Architecture -obj-$(CONFIG_8xx_WDT) += mpc8xx_wdt.o obj-$(CONFIG_MPC5200_WDT) += mpc5200_wdt.o obj-$(CONFIG_8xxx_WDT) += mpc8xxx_wdt.o obj-$(CONFIG_MV64X60_WDT) += mv64x60_wdt.o diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c index d061f0a..993e5f5 100644 --- a/drivers/watchdog/at91rm9200_wdt.c +++ b/drivers/watchdog/at91rm9200_wdt.c @@ -241,7 +241,7 @@ static int at91wdt_resume(struct platform_device *pdev) { if (at91wdt_busy) at91_wdt_start(); - return 0; + return 0; } #else diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index d039d5f..a3765e0b 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -116,6 +116,7 @@ static unsigned int reload; /* the computed soft_margin */ static int nowayout = WATCHDOG_NOWAYOUT; static char expect_release; static unsigned long hpwdt_is_open; +static unsigned int allow_kdump; static void __iomem *pci_mem_addr; /* the PCI-memory address */ static unsigned long __iomem *hpwdt_timer_reg; @@ -221,19 +222,19 @@ static int __devinit cru_detect(unsigned long map_entry, if (cmn_regs.u1.ral != 0) { printk(KERN_WARNING - "hpwdt: Call succeeded but with an error: 0x%x\n", - cmn_regs.u1.ral); + "hpwdt: Call succeeded but with an error: 0x%x\n", + cmn_regs.u1.ral); } else { physical_bios_base = cmn_regs.u2.rebx; physical_bios_offset = cmn_regs.u4.redx; cru_length = cmn_regs.u3.recx; cru_physical_address = - physical_bios_base + physical_bios_offset; + physical_bios_base + physical_bios_offset; /* If the values look OK, then map it in. */ if ((physical_bios_base + physical_bios_offset)) { cru_rom_addr = - ioremap(cru_physical_address, cru_length); + ioremap(cru_physical_address, cru_length); if (cru_rom_addr) retval = 0; } @@ -356,7 +357,6 @@ asm(".text \n\t" "call *%r12 \n\t" "pushfq \n\t" "popq %r12 \n\t" - "popfq \n\t" "movl %eax, (%r9) \n\t" "movl %ebx, 4(%r9) \n\t" "movl %ecx, 8(%r9) \n\t" @@ -390,10 +390,10 @@ static void __devinit dmi_find_cru(const struct dmi_header *dm) smbios_cru64_ptr = (struct smbios_cru64_info *) dm; if (smbios_cru64_ptr->signature == CRU_BIOS_SIGNATURE_VALUE) { cru_physical_address = - smbios_cru64_ptr->physical_address + - smbios_cru64_ptr->double_offset; + smbios_cru64_ptr->physical_address + + smbios_cru64_ptr->double_offset; cru_rom_addr = ioremap(cru_physical_address, - smbios_cru64_ptr->double_length); + smbios_cru64_ptr->double_length); } } } @@ -405,7 +405,7 @@ static int __devinit detect_cru_service(void) dmi_walk(dmi_find_cru); /* if cru_rom_addr has been set then we found a CRU service */ - return ((cru_rom_addr != NULL) ? 0: -ENODEV); + return ((cru_rom_addr != NULL) ? 0 : -ENODEV); } /* ------------------------------------------------------------------------- */ @@ -413,34 +413,6 @@ static int __devinit detect_cru_service(void) #endif /* - * NMI Handler - */ -static int hpwdt_pretimeout(struct notifier_block *nb, unsigned long ulReason, - void *data) -{ - unsigned long rom_pl; - static int die_nmi_called; - - if (ulReason != DIE_NMI && ulReason != DIE_NMI_IPI) - return NOTIFY_OK; - - spin_lock_irqsave(&rom_lock, rom_pl); - if (!die_nmi_called) - asminline_call(&cmn_regs, cru_rom_addr); - die_nmi_called = 1; - spin_unlock_irqrestore(&rom_lock, rom_pl); - if (cmn_regs.u1.ral == 0) { - printk(KERN_WARNING "hpwdt: An NMI occurred, " - "but unable to determine source.\n"); - } else { - panic("An NMI occurred, please see the Integrated " - "Management Log for details.\n"); - } - - return NOTIFY_STOP; -} - -/* * Watchdog operations */ static void hpwdt_start(void) @@ -484,6 +456,36 @@ static int hpwdt_change_timer(int new_margin) } /* + * NMI Handler + */ +static int hpwdt_pretimeout(struct notifier_block *nb, unsigned long ulReason, + void *data) +{ + unsigned long rom_pl; + static int die_nmi_called; + + if (ulReason != DIE_NMI && ulReason != DIE_NMI_IPI) + return NOTIFY_OK; + + spin_lock_irqsave(&rom_lock, rom_pl); + if (!die_nmi_called) + asminline_call(&cmn_regs, cru_rom_addr); + die_nmi_called = 1; + spin_unlock_irqrestore(&rom_lock, rom_pl); + if (cmn_regs.u1.ral == 0) { + printk(KERN_WARNING "hpwdt: An NMI occurred, " + "but unable to determine source.\n"); + } else { + if (allow_kdump) + hpwdt_stop(); + panic("An NMI occurred, please see the Integrated " + "Management Log for details.\n"); + } + + return NOTIFY_STOP; +} + +/* * /dev/watchdog handling */ static int hpwdt_open(struct inode *inode, struct file *file) @@ -625,17 +627,18 @@ static struct notifier_block die_notifier = { */ static int __devinit hpwdt_init_one(struct pci_dev *dev, - const struct pci_device_id *ent) + const struct pci_device_id *ent) { int retval; /* * First let's find out if we are on an iLO2 server. We will * not run on a legacy ASM box. + * So we only support the G5 ProLiant servers and higher. */ if (dev->subsystem_vendor != PCI_VENDOR_ID_HP) { dev_warn(&dev->dev, - "This server does not have an iLO2 ASIC.\n"); + "This server does not have an iLO2 ASIC.\n"); return -ENODEV; } @@ -669,7 +672,7 @@ static int __devinit hpwdt_init_one(struct pci_dev *dev, retval = detect_cru_service(); if (retval < 0) { dev_warn(&dev->dev, - "Unable to detect the %d Bit CRU Service.\n", + "Unable to detect the %d Bit CRU Service.\n", HPWDT_ARCH); goto error_get_cru; } @@ -684,7 +687,7 @@ static int __devinit hpwdt_init_one(struct pci_dev *dev, retval = register_die_notifier(&die_notifier); if (retval != 0) { dev_warn(&dev->dev, - "Unable to register a die notifier (err=%d).\n", + "Unable to register a die notifier (err=%d).\n", retval); goto error_die_notifier; } @@ -699,8 +702,9 @@ static int __devinit hpwdt_init_one(struct pci_dev *dev, printk(KERN_INFO "hp Watchdog Timer Driver: 1.00" - ", timer margin: %d seconds( nowayout=%d).\n", - soft_margin, nowayout); + ", timer margin: %d seconds (nowayout=%d)" + ", allow kernel dump: %s (default = 0/OFF).\n", + soft_margin, nowayout, (allow_kdump == 0) ? "OFF" : "ON"); return 0; @@ -755,6 +759,9 @@ MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); module_param(soft_margin, int, 0); MODULE_PARM_DESC(soft_margin, "Watchdog timeout in seconds"); +module_param(allow_kdump, int, 0); +MODULE_PARM_DESC(allow_kdump, "Start a kernel dump after NMI occurs"); + module_param(nowayout, int, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); diff --git a/drivers/watchdog/mpc8xx_wdt.c b/drivers/watchdog/mpc8xx_wdt.c deleted file mode 100644 index 1336425..0000000 --- a/drivers/watchdog/mpc8xx_wdt.c +++ /dev/null @@ -1,170 +0,0 @@ -/* - * mpc8xx_wdt.c - MPC8xx watchdog userspace interface - * - * Author: Florian Schirmer <jolt@tuxbox.org> - * - * 2002 (c) Florian Schirmer <jolt@tuxbox.org> This file is licensed under - * the terms of the GNU General Public License version 2. This program - * is licensed "as is" without any warranty of any kind, whether express - * or implied. - */ - -#include <linux/fs.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/miscdevice.h> -#include <linux/module.h> -#include <linux/watchdog.h> -#include <asm/8xx_immap.h> -#include <linux/uaccess.h> -#include <linux/io.h> -#include <syslib/m8xx_wdt.h> - -static unsigned long wdt_opened; -static int wdt_status; -static spinlock_t wdt_lock; - -static void mpc8xx_wdt_handler_disable(void) -{ - volatile uint __iomem *piscr; - piscr = (uint *)&((immap_t *)IMAP_ADDR)->im_sit.sit_piscr; - - if (!m8xx_has_internal_rtc) - m8xx_wdt_stop_timer(); - else - out_be32(piscr, in_be32(piscr) & ~(PISCR_PIE | PISCR_PTE)); - printk(KERN_NOTICE "mpc8xx_wdt: keep-alive handler deactivated\n"); -} - -static void mpc8xx_wdt_handler_enable(void) -{ - volatile uint __iomem *piscr; - piscr = (uint *)&((immap_t *)IMAP_ADDR)->im_sit.sit_piscr; - - if (!m8xx_has_internal_rtc) - m8xx_wdt_install_timer(); - else - out_be32(piscr, in_be32(piscr) | PISCR_PIE | PISCR_PTE); - printk(KERN_NOTICE "mpc8xx_wdt: keep-alive handler activated\n"); -} - -static int mpc8xx_wdt_open(struct inode *inode, struct file *file) -{ - if (test_and_set_bit(0, &wdt_opened)) - return -EBUSY; - m8xx_wdt_reset(); - mpc8xx_wdt_handler_disable(); - return nonseekable_open(inode, file); -} - -static int mpc8xx_wdt_release(struct inode *inode, struct file *file) -{ - m8xx_wdt_reset(); -#if !defined(CONFIG_WATCHDOG_NOWAYOUT) - mpc8xx_wdt_handler_enable(); -#endif - clear_bit(0, &wdt_opened); - return 0; -} - -static ssize_t mpc8xx_wdt_write(struct file *file, const char *data, - size_t len, loff_t *ppos) -{ - if (len) { - spin_lock(&wdt_lock); - m8xx_wdt_reset(); - spin_unlock(&wdt_lock); - } - return len; -} - -static long mpc8xx_wdt_ioctl(struct file *file, - unsigned int cmd, unsigned long arg) -{ - int timeout; - static struct watchdog_info info = { - .options = WDIOF_KEEPALIVEPING, - .firmware_version = 0, - .identity = "MPC8xx watchdog", - }; - - switch (cmd) { - case WDIOC_GETSUPPORT: - if (copy_to_user((void *)arg, &info, sizeof(info))) - return -EFAULT; - break; - - case WDIOC_GETSTATUS: - case WDIOC_GETBOOTSTATUS: - if (put_user(wdt_status, (int *)arg)) - return -EFAULT; - wdt_status &= ~WDIOF_KEEPALIVEPING; - break; - - case WDIOC_GETTEMP: - return -EOPNOTSUPP; - - case WDIOC_SETOPTIONS: - return -EOPNOTSUPP; - - case WDIOC_KEEPALIVE: - spin_lock(&wdt_lock); - m8xx_wdt_reset(); - wdt_status |= WDIOF_KEEPALIVEPING; - spin_unlock(&wdt_lock); - break; - - case WDIOC_SETTIMEOUT: - return -EOPNOTSUPP; - - case WDIOC_GETTIMEOUT: - spin_lock(&wdt_lock); - timeout = m8xx_wdt_get_timeout(); - spin_unlock(&wdt_lock); - if (put_user(timeout, (int *)arg)) - return -EFAULT; - break; - - default: - return -ENOTTY; - } - - return 0; -} - -static const struct file_operations mpc8xx_wdt_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .write = mpc8xx_wdt_write, - .unlocked_ioctl = mpc8xx_wdt_ioctl, - .open = mpc8xx_wdt_open, - .release = mpc8xx_wdt_release, -}; - -static struct miscdevice mpc8xx_wdt_miscdev = { - .minor = WATCHDOG_MINOR, - .name = "watchdog", - .fops = &mpc8xx_wdt_fops, -}; - -static int __init mpc8xx_wdt_init(void) -{ - spin_lock_init(&wdt_lock); - return misc_register(&mpc8xx_wdt_miscdev); -} - -static void __exit mpc8xx_wdt_exit(void) -{ - misc_deregister(&mpc8xx_wdt_miscdev); - - m8xx_wdt_reset(); - mpc8xx_wdt_handler_enable(); -} - -module_init(mpc8xx_wdt_init); -module_exit(mpc8xx_wdt_exit); - -MODULE_AUTHOR("Florian Schirmer <jolt@tuxbox.org>"); -MODULE_DESCRIPTION("MPC8xx watchdog driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/mpc8xxx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c index f209496..38c588e 100644 --- a/drivers/watchdog/mpc8xxx_wdt.c +++ b/drivers/watchdog/mpc8xxx_wdt.c @@ -48,6 +48,7 @@ struct mpc8xxx_wdt_type { }; static struct mpc8xxx_wdt __iomem *wd_base; +static int mpc8xxx_wdt_init_late(void); static u16 timeout = 0xffff; module_param(timeout, ushort, 0); @@ -213,6 +214,12 @@ static int __devinit mpc8xxx_wdt_probe(struct of_device *ofdev, else timeout_sec = timeout / freq; +#ifdef MODULE + ret = mpc8xxx_wdt_init_late(); + if (ret) + goto err_unmap; +#endif + pr_info("WDT driver for MPC8xxx initialized. mode:%s timeout=%d " "(%d seconds)\n", reset ? "reset" : "interrupt", timeout, timeout_sec); @@ -280,7 +287,7 @@ static struct of_platform_driver mpc8xxx_wdt_driver = { * very early to start pinging the watchdog (misc devices are not yet * available), and later module_init() just registers the misc device. */ -static int __init mpc8xxx_wdt_init_late(void) +static int mpc8xxx_wdt_init_late(void) { int ret; @@ -295,7 +302,9 @@ static int __init mpc8xxx_wdt_init_late(void) } return 0; } +#ifndef MODULE module_init(mpc8xxx_wdt_init_late); +#endif static int __init mpc8xxx_wdt_init(void) { diff --git a/drivers/watchdog/pc87413_wdt.c b/drivers/watchdog/pc87413_wdt.c index e91ada7..484c215 100644 --- a/drivers/watchdog/pc87413_wdt.c +++ b/drivers/watchdog/pc87413_wdt.c @@ -30,7 +30,6 @@ #include <linux/init.h> #include <linux/spinlock.h> #include <linux/moduleparam.h> -#include <linux/version.h> #include <linux/io.h> #include <linux/uaccess.h> diff --git a/drivers/watchdog/rc32434_wdt.c b/drivers/watchdog/rc32434_wdt.c new file mode 100644 index 0000000..6756bcb --- /dev/null +++ b/drivers/watchdog/rc32434_wdt.c @@ -0,0 +1,344 @@ +/* + * IDT Interprise 79RC32434 watchdog driver + * + * Copyright (C) 2006, Ondrej Zajicek <santiago@crfreenet.org> + * Copyright (C) 2008, Florian Fainelli <florian@openwrt.org> + * + * based on + * SoftDog 0.05: A Software Watchdog Device + * + * (c) Copyright 1996 Alan Cox <alan@redhat.com>, 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 + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/fs.h> +#include <linux/mm.h> +#include <linux/miscdevice.h> +#include <linux/watchdog.h> +#include <linux/reboot.h> +#include <linux/smp_lock.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/uaccess.h> + +#include <asm/bootinfo.h> +#include <asm/time.h> +#include <asm/mach-rc32434/integ.h> + +#define MAX_TIMEOUT 20 +#define RC32434_WDT_INTERVAL (15 * HZ) + +#define VERSION "0.2" + +static struct { + struct completion stop; + int running; + struct timer_list timer; + int queue; + int default_ticks; + unsigned long inuse; +} rc32434_wdt_device; + +static struct integ __iomem *wdt_reg; +static int ticks = 100 * HZ; + +static int expect_close; +static int timeout; + +static int nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, int, 0); +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); + + +static void rc32434_wdt_start(void) +{ + u32 val; + + if (!rc32434_wdt_device.inuse) { + writel(0, &wdt_reg->wtcount); + + val = RC32434_ERR_WRE; + writel(readl(&wdt_reg->errcs) | val, &wdt_reg->errcs); + + val = RC32434_WTC_EN; + writel(readl(&wdt_reg->wtc) | val, &wdt_reg->wtc); + } + rc32434_wdt_device.running++; +} + +static void rc32434_wdt_stop(void) +{ + u32 val; + + if (rc32434_wdt_device.running) { + + val = ~RC32434_WTC_EN; + writel(readl(&wdt_reg->wtc) & val, &wdt_reg->wtc); + + val = ~RC32434_ERR_WRE; + writel(readl(&wdt_reg->errcs) & val, &wdt_reg->errcs); + + rc32434_wdt_device.running = 0; + } +} + +static void rc32434_wdt_set(int new_timeout) +{ + u32 cmp = new_timeout * HZ; + u32 state, val; + + timeout = new_timeout; + /* + * store and disable WTC + */ + state = (u32)(readl(&wdt_reg->wtc) & RC32434_WTC_EN); + val = ~RC32434_WTC_EN; + writel(readl(&wdt_reg->wtc) & val, &wdt_reg->wtc); + + writel(0, &wdt_reg->wtcount); + writel(cmp, &wdt_reg->wtcompare); + + /* + * restore WTC + */ + + writel(readl(&wdt_reg->wtc) | state, &wdt_reg); +} + +static void rc32434_wdt_reset(void) +{ + ticks = rc32434_wdt_device.default_ticks; +} + +static void rc32434_wdt_update(unsigned long unused) +{ + if (rc32434_wdt_device.running) + ticks--; + + writel(0, &wdt_reg->wtcount); + + if (rc32434_wdt_device.queue && ticks) + mod_timer(&rc32434_wdt_device.timer, + jiffies + RC32434_WDT_INTERVAL); + else + complete(&rc32434_wdt_device.stop); +} + +static int rc32434_wdt_open(struct inode *inode, struct file *file) +{ + if (test_and_set_bit(0, &rc32434_wdt_device.inuse)) + return -EBUSY; + + if (nowayout) + __module_get(THIS_MODULE); + + return nonseekable_open(inode, file); +} + +static int rc32434_wdt_release(struct inode *inode, struct file *file) +{ + if (expect_close && nowayout == 0) { + rc32434_wdt_stop(); + printk(KERN_INFO KBUILD_MODNAME ": disabling watchdog timer\n"); + module_put(THIS_MODULE); + } else + printk(KERN_CRIT KBUILD_MODNAME + ": device closed unexpectedly. WDT will not stop !\n"); + + clear_bit(0, &rc32434_wdt_device.inuse); + return 0; +} + +static ssize_t rc32434_wdt_write(struct file *file, const char *data, + size_t len, loff_t *ppos) +{ + if (len) { + if (!nowayout) { + size_t i; + + /* In case it was set long ago */ + expect_close = 0; + + for (i = 0; i != len; i++) { + char c; + if (get_user(c, data + i)) + return -EFAULT; + if (c == 'V') + expect_close = 1; + } + } + rc32434_wdt_update(0); + return len; + } + return 0; +} + +static int rc32434_wdt_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg) +{ + void __user *argp = (void __user *)arg; + int new_timeout; + unsigned int value; + static struct watchdog_info ident = { + .options = WDIOF_SETTIMEOUT | + WDIOF_KEEPALIVEPING | + WDIOF_MAGICCLOSE, + .identity = "RC32434_WDT Watchdog", + }; + switch (cmd) { + case WDIOC_KEEPALIVE: + rc32434_wdt_reset(); + break; + case WDIOC_GETSTATUS: + case WDIOC_GETBOOTSTATUS: + value = readl(&wdt_reg->wtcount); + if (copy_to_user(argp, &value, sizeof(int))) + return -EFAULT; + break; + case WDIOC_GETSUPPORT: + if (copy_to_user(argp, &ident, sizeof(ident))) + return -EFAULT; + break; + case WDIOC_SETOPTIONS: + if (copy_from_user(&value, argp, sizeof(int))) + return -EFAULT; + switch (value) { + case WDIOS_ENABLECARD: + rc32434_wdt_start(); + break; + case WDIOS_DISABLECARD: + rc32434_wdt_stop(); + default: + return -EINVAL; + } + break; + case WDIOC_SETTIMEOUT: + if (copy_from_user(&new_timeout, argp, sizeof(int))) + return -EFAULT; + if (new_timeout < 1) + return -EINVAL; + if (new_timeout > MAX_TIMEOUT) + return -EINVAL; + rc32434_wdt_set(new_timeout); + case WDIOC_GETTIMEOUT: + return copy_to_user(argp, &timeout, sizeof(int)); + default: + return -ENOTTY; + } + + return 0; +} + +static struct file_operations rc32434_wdt_fops = { + .owner = THIS_MODULE, + .llseek = no_llseek, + .write = rc32434_wdt_write, + .ioctl = rc32434_wdt_ioctl, + .open = rc32434_wdt_open, + .release = rc32434_wdt_release, +}; + +static struct miscdevice rc32434_wdt_miscdev = { + .minor = WATCHDOG_MINOR, + .name = "watchdog", + .fops = &rc32434_wdt_fops, +}; + +static char banner[] = KERN_INFO KBUILD_MODNAME + ": Watchdog Timer version " VERSION ", timer margin: %d sec\n"; + +static int rc32434_wdt_probe(struct platform_device *pdev) +{ + int ret; + struct resource *r; + + r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rb500_wdt_res"); + if (!r) { + printk(KERN_ERR KBUILD_MODNAME + "failed to retrieve resources\n"); + return -ENODEV; + } + + wdt_reg = ioremap_nocache(r->start, r->end - r->start); + if (!wdt_reg) { + printk(KERN_ERR KBUILD_MODNAME + "failed to remap I/O resources\n"); + return -ENXIO; + } + + ret = misc_register(&rc32434_wdt_miscdev); + + if (ret < 0) { + printk(KERN_ERR KBUILD_MODNAME + "failed to register watchdog device\n"); + goto unmap; + } + + init_completion(&rc32434_wdt_device.stop); + rc32434_wdt_device.queue = 0; + + clear_bit(0, &rc32434_wdt_device.inuse); + + setup_timer(&rc32434_wdt_device.timer, rc32434_wdt_update, 0L); + + rc32434_wdt_device.default_ticks = ticks; + + rc32434_wdt_start(); + + printk(banner, timeout); + + return 0; + +unmap: + iounmap(wdt_reg); + return ret; +} + +static int rc32434_wdt_remove(struct platform_device *pdev) +{ + if (rc32434_wdt_device.queue) { + rc32434_wdt_device.queue = 0; + wait_for_completion(&rc32434_wdt_device.stop); + } + misc_deregister(&rc32434_wdt_miscdev); + + iounmap(wdt_reg); + + return 0; +} + +static struct platform_driver rc32434_wdt = { + .probe = rc32434_wdt_probe, + .remove = rc32434_wdt_remove, + .driver = { + .name = "rc32434_wdt", + } +}; + +static int __init rc32434_wdt_init(void) +{ + return platform_driver_register(&rc32434_wdt); +} + +static void __exit rc32434_wdt_exit(void) +{ + platform_driver_unregister(&rc32434_wdt); +} + +module_init(rc32434_wdt_init); +module_exit(rc32434_wdt_exit); + +MODULE_AUTHOR("Ondrej Zajicek <santiago@crfreenet.org>," + "Florian Fainelli <florian@openwrt.org>"); +MODULE_DESCRIPTION("Driver for the IDT RC32434 SoC watchdog"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c new file mode 100644 index 0000000..9108efa --- /dev/null +++ b/drivers/watchdog/rdc321x_wdt.c @@ -0,0 +1,285 @@ +/* + * RDC321x watchdog driver + * + * Copyright (C) 2007 Florian Fainelli <florian@openwrt.org> + * + * This driver is highly inspired from the cpu5_wdt driver + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/miscdevice.h> +#include <linux/fs.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/timer.h> +#include <linux/completion.h> +#include <linux/jiffies.h> +#include <linux/platform_device.h> +#include <linux/watchdog.h> +#include <linux/io.h> +#include <linux/uaccess.h> + +#include <asm/mach-rdc321x/rdc321x_defs.h> + +#define RDC_WDT_MASK 0x80000000 /* Mask */ +#define RDC_WDT_EN 0x00800000 /* Enable bit */ +#define RDC_WDT_WTI 0x00200000 /* Generate CPU reset/NMI/WDT on timeout */ +#define RDC_WDT_RST 0x00100000 /* Reset bit */ +#define RDC_WDT_WIF 0x00040000 /* WDT IRQ Flag */ +#define RDC_WDT_IRT 0x00000100 /* IRQ Routing table */ +#define RDC_WDT_CNT 0x00000001 /* WDT count */ + +#define RDC_CLS_TMR 0x80003844 /* Clear timer */ + +#define RDC_WDT_INTERVAL (HZ/10+1) + +static int ticks = 1000; + +/* some device data */ + +static struct { + struct completion stop; + int running; + struct timer_list timer; + int queue; + int default_ticks; + unsigned long inuse; + spinlock_t lock; +} rdc321x_wdt_device; + +/* generic helper functions */ + +static void rdc321x_wdt_trigger(unsigned long unused) +{ + unsigned long flags; + + if (rdc321x_wdt_device.running) + ticks--; + + /* keep watchdog alive */ + spin_lock_irqsave(&rdc321x_wdt_device.lock, flags); + outl(RDC_WDT_EN | inl(RDC3210_CFGREG_DATA), + RDC3210_CFGREG_DATA); + spin_unlock_irqrestore(&rdc321x_wdt_device.lock, flags); + + /* requeue?? */ + if (rdc321x_wdt_device.queue && ticks) + mod_timer(&rdc321x_wdt_device.timer, + jiffies + RDC_WDT_INTERVAL); + else { + /* ticks doesn't matter anyway */ + complete(&rdc321x_wdt_device.stop); + } + +} + +static void rdc321x_wdt_reset(void) +{ + ticks = rdc321x_wdt_device.default_ticks; +} + +static void rdc321x_wdt_start(void) +{ + unsigned long flags; + + if (!rdc321x_wdt_device.queue) { + rdc321x_wdt_device.queue = 1; + + /* Clear the timer */ + spin_lock_irqsave(&rdc321x_wdt_device.lock, flags); + outl(RDC_CLS_TMR, RDC3210_CFGREG_ADDR); + + /* Enable watchdog and set the timeout to 81.92 us */ + outl(RDC_WDT_EN | RDC_WDT_CNT, RDC3210_CFGREG_DATA); + spin_unlock_irqrestore(&rdc321x_wdt_device.lock, flags); + + mod_timer(&rdc321x_wdt_device.timer, + jiffies + RDC_WDT_INTERVAL); + } + + /* if process dies, counter is not decremented */ + rdc321x_wdt_device.running++; +} + +static int rdc321x_wdt_stop(void) +{ + if (rdc321x_wdt_device.running) + rdc321x_wdt_device.running = 0; + + ticks = rdc321x_wdt_device.default_ticks; + + return -EIO; +} + +/* filesystem operations */ +static int rdc321x_wdt_open(struct inode *inode, struct file *file) +{ + if (test_and_set_bit(0, &rdc321x_wdt_device.inuse)) + return -EBUSY; + + return nonseekable_open(inode, file); +} + +static int rdc321x_wdt_release(struct inode *inode, struct file *file) +{ + clear_bit(0, &rdc321x_wdt_device.inuse); + return 0; +} + +static int rdc321x_wdt_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg) +{ + void __user *argp = (void __user *)arg; + unsigned int value; + static struct watchdog_info ident = { + .options = WDIOF_CARDRESET, + .identity = "RDC321x WDT", + }; + unsigned long flags; + + switch (cmd) { + case WDIOC_KEEPALIVE: + rdc321x_wdt_reset(); + break; + case WDIOC_GETSTATUS: + /* Read the value from the DATA register */ + spin_lock_irqsave(&rdc321x_wdt_device.lock, flags); + value = inl(RDC3210_CFGREG_DATA); + spin_unlock_irqrestore(&rdc321x_wdt_device.lock, flags); + if (copy_to_user(argp, &value, sizeof(int))) + return -EFAULT; + break; + case WDIOC_GETSUPPORT: + if (copy_to_user(argp, &ident, sizeof(ident))) + return -EFAULT; + break; + case WDIOC_SETOPTIONS: + if (copy_from_user(&value, argp, sizeof(int))) + return -EFAULT; + switch (value) { + case WDIOS_ENABLECARD: + rdc321x_wdt_start(); + break; + case WDIOS_DISABLECARD: + return rdc321x_wdt_stop(); + default: + return -EINVAL; + } + break; + default: + return -ENOTTY; + } + return 0; +} + +static ssize_t rdc321x_wdt_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) +{ + if (!count) + return -EIO; + + rdc321x_wdt_reset(); + + return count; +} + +static const struct file_operations rdc321x_wdt_fops = { + .owner = THIS_MODULE, + .llseek = no_llseek, + .ioctl = rdc321x_wdt_ioctl, + .open = rdc321x_wdt_open, + .write = rdc321x_wdt_write, + .release = rdc321x_wdt_release, +}; + +static struct miscdevice rdc321x_wdt_misc = { + .minor = WATCHDOG_MINOR, + .name = "watchdog", + .fops = &rdc321x_wdt_fops, +}; + +static int __devinit rdc321x_wdt_probe(struct platform_device *pdev) +{ + int err; + + err = misc_register(&rdc321x_wdt_misc); + if (err < 0) { + printk(KERN_ERR PFX "watchdog misc_register failed\n"); + return err; + } + + spin_lock_init(&rdc321x_wdt_device.lock); + + /* Reset the watchdog */ + outl(RDC_WDT_RST, RDC3210_CFGREG_DATA); + + init_completion(&rdc321x_wdt_device.stop); + rdc321x_wdt_device.queue = 0; + + clear_bit(0, &rdc321x_wdt_device.inuse); + + setup_timer(&rdc321x_wdt_device.timer, rdc321x_wdt_trigger, 0); + + rdc321x_wdt_device.default_ticks = ticks; + + printk(KERN_INFO PFX "watchdog init success\n"); + + return 0; +} + +static int rdc321x_wdt_remove(struct platform_device *pdev) +{ + if (rdc321x_wdt_device.queue) { + rdc321x_wdt_device.queue = 0; + wait_for_completion(&rdc321x_wdt_device.stop); + } + + misc_deregister(&rdc321x_wdt_misc); + + return 0; +} + +static struct platform_driver rdc321x_wdt_driver = { + .probe = rdc321x_wdt_probe, + .remove = rdc321x_wdt_remove, + .driver = { + .owner = THIS_MODULE, + .name = "rdc321x-wdt", + }, +}; + +static int __init rdc321x_wdt_init(void) +{ + return platform_driver_register(&rdc321x_wdt_driver); +} + +static void __exit rdc321x_wdt_exit(void) +{ + platform_driver_unregister(&rdc321x_wdt_driver); +} + +module_init(rdc321x_wdt_init); +module_exit(rdc321x_wdt_exit); + +MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); +MODULE_DESCRIPTION("RDC321x watchdog driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c index 22715e3..86d4280 100644 --- a/drivers/watchdog/s3c2410_wdt.c +++ b/drivers/watchdog/s3c2410_wdt.c @@ -21,18 +21,6 @@ * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Changelog: - * 05-Oct-2004 BJD Added semaphore init to stop crashes on open - * Fixed tmr_count / wdt_count confusion - * Added configurable debug - * - * 11-Jan-2005 BJD Fixed divide-by-2 in timeout code - * - * 25-Jan-2005 DA Added suspend/resume support - * Replaced reboot notifier with .shutdown method - * - * 10-Mar-2005 LCVR Changed S3C2410_VA to S3C24XX_VA */ #include <linux/module.h> @@ -365,7 +353,7 @@ static int s3c2410wdt_probe(struct platform_device *pdev) return -ENOENT; } - size = (res->end-res->start)+1; + size = (res->end - res->start) + 1; wdt_mem = request_mem_region(res->start, size, pdev->name); if (wdt_mem == NULL) { dev_err(dev, "failed to get memory region\n"); @@ -374,7 +362,7 @@ static int s3c2410wdt_probe(struct platform_device *pdev) } wdt_base = ioremap(res->start, size); - if (wdt_base == 0) { + if (wdt_base == NULL) { dev_err(dev, "failed to ioremap() region\n"); ret = -EINVAL; goto err_req; |