From 38089c658bf372adc2bd7b3597fceac0c7cecca6 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 7 Apr 2009 16:35:56 +0200 Subject: HID: hidraw -- fix missing unlocks in unlocked_ioctl There were 2 places that returned directly instead of releasing their locks. I sent a fix for this file earlier but ended up missing these spots. I think what happened is that I have improved my checker script since then... Or maybe I just screwed up. Signed-off-by: Dan Carpenter Signed-off-by: Jiri Kosina --- drivers/hid/hidraw.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c index e263d473117..00ccf4b1985 100644 --- a/drivers/hid/hidraw.c +++ b/drivers/hid/hidraw.c @@ -285,8 +285,10 @@ static long hidraw_ioctl(struct file *file, unsigned int cmd, if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGRAWNAME(0))) { int len; - if (!hid->name) - return 0; + if (!hid->name) { + ret = 0; + break; + } len = strlen(hid->name) + 1; if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd); @@ -297,8 +299,10 @@ static long hidraw_ioctl(struct file *file, unsigned int cmd, if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGRAWPHYS(0))) { int len; - if (!hid->phys) - return 0; + if (!hid->phys) { + ret = 0; + break; + } len = strlen(hid->phys) + 1; if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd); -- cgit v1.2.3-18-g5258 From f544847fbaf099278343f875987a983f2b913134 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Tue, 14 Apr 2009 14:17:47 -0700 Subject: drm/i915: allow tiled front buffers on 965+ This patch corrects a pretty big oversight in the KMS code for 965+ chips. The current code is missing tiled surface register programming, so userland can allocate a tiled surface and use it for mode setting, resulting in corruption. This patch fixes that, allowing for tiled front buffers on 965+. Cc: stable@kernel.org Tested-by: Arkadiusz Miskiewicz Signed-off-by: Jesse Barnes Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_reg.h | 1 + drivers/gpu/drm/i915/intel_display.c | 9 +++++++++ 2 files changed, 10 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index e805b590ae7..52119473226 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1446,6 +1446,7 @@ #define DISPPLANE_NO_LINE_DOUBLE 0 #define DISPPLANE_STEREO_POLARITY_FIRST 0 #define DISPPLANE_STEREO_POLARITY_SECOND (1<<18) +#define DISPPLANE_TILED (1<<10) #define DSPAADDR 0x70184 #define DSPASTRIDE 0x70188 #define DSPAPOS 0x7018C /* reserved */ diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index c2c8e95ff14..bdcda36953b 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -657,6 +657,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, int dspbase = (pipe == 0 ? DSPAADDR : DSPBADDR); int dspsurf = (pipe == 0 ? DSPASURF : DSPBSURF); int dspstride = (pipe == 0) ? DSPASTRIDE : DSPBSTRIDE; + int dsptileoff = (pipe == 0 ? DSPATILEOFF : DSPBTILEOFF); int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR; u32 dspcntr, alignment; int ret; @@ -733,6 +734,13 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, mutex_unlock(&dev->struct_mutex); return -EINVAL; } + if (IS_I965G(dev)) { + if (obj_priv->tiling_mode != I915_TILING_NONE) + dspcntr |= DISPPLANE_TILED; + else + dspcntr &= ~DISPPLANE_TILED; + } + I915_WRITE(dspcntr_reg, dspcntr); Start = obj_priv->gtt_offset; @@ -745,6 +753,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, I915_READ(dspbase); I915_WRITE(dspsurf, Start); I915_READ(dspsurf); + I915_WRITE(dsptileoff, (y << 16) | x); } else { I915_WRITE(dspbase, Start + Offset); I915_READ(dspbase); -- cgit v1.2.3-18-g5258 From 243b706d8a71364ad6080328d45b73516c8af5f3 Mon Sep 17 00:00:00 2001 From: Christophe Borivant Date: Fri, 17 Apr 2009 11:39:39 +0200 Subject: HID: Add support for the G25 force feedback wheel in native mode Add Product Id 0xc299 for the Logitech G25 force feedback wheel The Logitech G25 force feedback wheel, is first recognize by the kernel with the product id "0xc294". In this mode, we can't use all the axes and buttons of the wheel. Using a userland utility, it is possible to make the wheel switch to native mode -- http://svn.vdrift.net/viewvc.cgi/trunk/tools/G25manage/?root=VDrift In native mode, the wheel change its id number to "0xc299". The packet that needs to be sent to the wheel to swtich to native mode and change its PID is { 0xf8, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00 } Signed-off-by: Christophe Borivant Signed-off-by: Jiri Kosina --- drivers/hid/hid-core.c | 1 + drivers/hid/hid-ids.h | 1 + drivers/hid/hid-lg.c | 2 ++ 3 files changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 5746a5903bc..c7075d2b078 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1293,6 +1293,7 @@ static const struct hid_device_id hid_blacklist[] = { { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) }, { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) }, { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) }, + { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) }, { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) }, diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index bdeda4c7cc1..aa1b995dd03 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -292,6 +292,7 @@ #define USB_DEVICE_ID_LOGITECH_FORCE3D_PRO 0xc286 #define USB_DEVICE_ID_LOGITECH_WHEEL 0xc294 #define USB_DEVICE_ID_LOGITECH_MOMO_WHEEL 0xc295 +#define USB_DEVICE_ID_LOGITECH_G25_WHEEL 0xc299 #define USB_DEVICE_ID_LOGITECH_ELITE_KBD 0xc30a #define USB_DEVICE_ID_S510_RECEIVER 0xc50c #define USB_DEVICE_ID_S510_RECEIVER_2 0xc517 diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c index 7b80cb69498..7afbaa0efd1 100644 --- a/drivers/hid/hid-lg.c +++ b/drivers/hid/hid-lg.c @@ -297,6 +297,8 @@ static const struct hid_device_id lg_devices[] = { .driver_data = LG_FF }, { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2), .driver_data = LG_FF }, + { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL), + .driver_data = LG_FF }, { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2), .driver_data = LG_FF2 }, { } -- cgit v1.2.3-18-g5258 From 07f4f8bf436e3f389a12cb792ad16275b9091b51 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Thu, 16 Apr 2009 13:46:12 -0700 Subject: drm/i915: Don't let an oops get triggered from irq_emit without dma init. Userland is broken if it's trying this, but we also shouldn't allow oopses. Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_irq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index ee7ce7b78cf..98bb4c878c4 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -406,7 +406,7 @@ int i915_irq_emit(struct drm_device *dev, void *data, drm_i915_irq_emit_t *emit = data; int result; - if (!dev_priv) { + if (!dev_priv || !dev_priv->ring.virtual_start) { DRM_ERROR("called with no initialization\n"); return -EINVAL; } -- cgit v1.2.3-18-g5258 From 5b0bdd6f7284ed39ee553f8a8c4f0d372c87133a Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Thu, 16 Apr 2009 15:17:39 -0700 Subject: drm/i915: fix transition to I915_TILING_NONE Transitions to TILING_NONE skipped the call to unbind the object, which left the fence register set and caused future CPU access through the GTT to access the object in tiled mode. Signed-off-by: Keith Packard Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_gem_tiling.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c index f27e523c764..52a059354e8 100644 --- a/drivers/gpu/drm/i915/i915_gem_tiling.c +++ b/drivers/gpu/drm/i915/i915_gem_tiling.c @@ -283,7 +283,6 @@ i915_gem_set_tiling(struct drm_device *dev, void *data, mutex_lock(&dev->struct_mutex); if (args->tiling_mode == I915_TILING_NONE) { - obj_priv->tiling_mode = I915_TILING_NONE; args->swizzle_mode = I915_BIT_6_SWIZZLE_NONE; } else { if (args->tiling_mode == I915_TILING_X) -- cgit v1.2.3-18-g5258 From d770e3cfe5a274a343d896b2cc1646af85646fbc Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Wed, 15 Apr 2009 21:46:36 +0100 Subject: drm/i915: Register ACPI video even when not modesetting The ACPI video driver defers registration to the i915 driver if the system supports opregion-mediated backlight control. This registration was only being performed in the KMS case. Ensure it's done even if we don't have modesetting enabled. Signed-off-by: Matthew Garrett Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_opregion.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_opregion.c b/drivers/gpu/drm/i915/i915_opregion.c index 69427722d20..8dc1fd3115c 100644 --- a/drivers/gpu/drm/i915/i915_opregion.c +++ b/drivers/gpu/drm/i915/i915_opregion.c @@ -370,11 +370,8 @@ int intel_opregion_init(struct drm_device *dev, int resume) if (mboxes & MBOX_ACPI) { DRM_DEBUG("Public ACPI methods supported\n"); opregion->acpi = base + OPREGION_ACPI_OFFSET; - if (drm_core_check_feature(dev, DRIVER_MODESET)) { + if (drm_core_check_feature(dev, DRIVER_MODESET)) intel_didl_outputs(dev); - if (!resume) - acpi_video_register(); - } } else { DRM_DEBUG("Public ACPI methods not supported\n"); err = -ENOTSUPP; @@ -391,6 +388,10 @@ int intel_opregion_init(struct drm_device *dev, int resume) opregion->asle = base + OPREGION_ASLE_OFFSET; } + if (!resume) + acpi_video_register(); + + /* Notify BIOS we are ready to handle ACPI video ext notifs. * Right now, all the events are handled by the ACPI video module. * We don't actually need to do anything with them. */ -- cgit v1.2.3-18-g5258 From 3b1c1c1118880921da1188b7245e0470742802f8 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Wed, 1 Apr 2009 19:52:29 +0100 Subject: drm/i915: Unregister ACPI video driver when exiting The i915 DRM triggers registration of the ACPI video driver on load. It should unregister it at unload in order to avoid generating backtraces on being reloaded. Signed-off-by: Matthew Garrett Signed-off-by: Eric Anholt --- drivers/acpi/video.c | 3 ++- drivers/gpu/drm/i915/i915_dma.c | 2 +- drivers/gpu/drm/i915/i915_drv.c | 2 +- drivers/gpu/drm/i915/i915_drv.h | 4 ++-- drivers/gpu/drm/i915/i915_opregion.c | 5 ++++- 5 files changed, 10 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index cd4fb7543a9..8961e613e09 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -2293,7 +2293,7 @@ static int __init acpi_video_init(void) return acpi_video_register(); } -static void __exit acpi_video_exit(void) +void __exit acpi_video_exit(void) { acpi_bus_unregister_driver(&acpi_video_bus); @@ -2302,6 +2302,7 @@ static void __exit acpi_video_exit(void) return; } +EXPORT_SYMBOL(acpi_video_exit); module_init(acpi_video_init); module_exit(acpi_video_exit); diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index a000cf02882..272614389c0 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1232,7 +1232,7 @@ int i915_driver_unload(struct drm_device *dev) if (dev_priv->regs != NULL) iounmap(dev_priv->regs); - intel_opregion_free(dev); + intel_opregion_free(dev, 0); if (drm_core_check_feature(dev, DRIVER_MODESET)) { intel_modeset_cleanup(dev); diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 6503e2210f6..98560e1e899 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -77,7 +77,7 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state) drm_irq_uninstall(dev); } - intel_opregion_free(dev); + intel_opregion_free(dev, 1); if (state.event == PM_EVENT_SUSPEND) { /* Shut down the device */ diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 473a8f7fbdb..d7471fe1beb 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -674,12 +674,12 @@ extern int i915_restore_state(struct drm_device *dev); #ifdef CONFIG_ACPI /* i915_opregion.c */ extern int intel_opregion_init(struct drm_device *dev, int resume); -extern void intel_opregion_free(struct drm_device *dev); +extern void intel_opregion_free(struct drm_device *dev, int suspend); extern void opregion_asle_intr(struct drm_device *dev); extern void opregion_enable_asle(struct drm_device *dev); #else static inline int intel_opregion_init(struct drm_device *dev, int resume) { return 0; } -static inline void intel_opregion_free(struct drm_device *dev) { return; } +static inline void intel_opregion_free(struct drm_device *dev, int suspend) { return; } static inline void opregion_asle_intr(struct drm_device *dev) { return; } static inline void opregion_enable_asle(struct drm_device *dev) { return; } #endif diff --git a/drivers/gpu/drm/i915/i915_opregion.c b/drivers/gpu/drm/i915/i915_opregion.c index 8dc1fd3115c..3eceefe3475 100644 --- a/drivers/gpu/drm/i915/i915_opregion.c +++ b/drivers/gpu/drm/i915/i915_opregion.c @@ -409,7 +409,7 @@ err_out: return err; } -void intel_opregion_free(struct drm_device *dev) +void intel_opregion_free(struct drm_device *dev, int suspend) { struct drm_i915_private *dev_priv = dev->dev_private; struct intel_opregion *opregion = &dev_priv->opregion; @@ -417,6 +417,9 @@ void intel_opregion_free(struct drm_device *dev) if (!opregion->enabled) return; + if (!suspend) + acpi_video_exit(); + opregion->acpi->drdy = 0; system_opregion = NULL; -- cgit v1.2.3-18-g5258 From 44ab43155e8071fbf037513e57de9a79044edf56 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Wed, 1 Apr 2009 19:53:33 +0100 Subject: drm/i915: Enable ASLE if present The changes to opregion initialisation order meant that the ASLE setup code might not be run at the correct time. Ensure that the interrupts are set up. Signed-off-by: Matthew Garrett Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_opregion.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_opregion.c b/drivers/gpu/drm/i915/i915_opregion.c index 3eceefe3475..dc425e74a26 100644 --- a/drivers/gpu/drm/i915/i915_opregion.c +++ b/drivers/gpu/drm/i915/i915_opregion.c @@ -386,6 +386,7 @@ int intel_opregion_init(struct drm_device *dev, int resume) if (mboxes & MBOX_ASLE) { DRM_DEBUG("ASLE supported\n"); opregion->asle = base + OPREGION_ASLE_OFFSET; + opregion_enable_asle(dev); } if (!resume) -- cgit v1.2.3-18-g5258 From 0f751719e4e689efbe537233552e5f0529ecb8ce Mon Sep 17 00:00:00 2001 From: Ben Nizette Date: Fri, 17 Apr 2009 20:35:57 -0700 Subject: Input: omap-keypad - use disable_irq_nosync() in irq handler disable_irq() waits for all running handlers to complete before returning. As such, if it's used to disable an interrupt from that interrupt's handler it will deadlock. This replaces the dangerous instances with the _nosync() variant which doesn't have this problem. Signed-off-by: Ben Nizette Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/omap-keypad.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c index 058fa8b02c2..87ec7b18ac6 100644 --- a/drivers/input/keyboard/omap-keypad.c +++ b/drivers/input/keyboard/omap-keypad.c @@ -100,8 +100,20 @@ static irqreturn_t omap_kp_interrupt(int irq, void *dev_id) /* disable keyboard interrupt and schedule for handling */ if (cpu_is_omap24xx()) { int i; - for (i = 0; i < omap_kp->rows; i++) - disable_irq(gpio_to_irq(row_gpios[i])); + + for (i = 0; i < omap_kp->rows; i++) { + int gpio_irq = gpio_to_irq(row_gpios[i]); + /* + * The interrupt which we're currently handling should + * be disabled _nosync() to avoid deadlocks waiting + * for this handler to complete. All others should + * be disabled the regular way for SMP safety. + */ + if (gpio_irq == irq) + disable_irq_nosync(gpio_irq); + else + disable_irq(gpio_irq); + } } else /* disable keyboard interrupt and schedule for handling */ omap_writew(1, OMAP_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT); -- cgit v1.2.3-18-g5258 From e4bd3e591c8cc52ccf7a0b27f33aa7a5a19058d7 Mon Sep 17 00:00:00 2001 From: Ben Nizette Date: Fri, 17 Apr 2009 20:35:57 -0700 Subject: Input: sa1111ps2 - use disable_irq_nosync() in irq handlers disable_irq() waits for all running handlers to complete before returning. As such, if it's used to disable an interrupt from that interrupt's handler it will deadlock. This replaces the dangerous instances with the _nosync() variant which doesn't have this problem. Signed-off-by: Ben Nizette Signed-off-by: Dmitry Torokhov --- drivers/input/serio/sa1111ps2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/input/serio/sa1111ps2.c b/drivers/input/serio/sa1111ps2.c index 57953c0eb82..f412c69478a 100644 --- a/drivers/input/serio/sa1111ps2.c +++ b/drivers/input/serio/sa1111ps2.c @@ -77,7 +77,7 @@ static irqreturn_t ps2_txint(int irq, void *dev_id) spin_lock(&ps2if->lock); status = sa1111_readl(ps2if->base + SA1111_PS2STAT); if (ps2if->head == ps2if->tail) { - disable_irq(irq); + disable_irq_nosync(irq); /* done */ } else if (status & PS2STAT_TXE) { sa1111_writel(ps2if->buf[ps2if->tail], ps2if->base + SA1111_PS2DATA); -- cgit v1.2.3-18-g5258 From 29fa98bd9b50b5e9c17d99e961640ffafb765d71 Mon Sep 17 00:00:00 2001 From: Ben Nizette Date: Fri, 17 Apr 2009 20:35:57 -0700 Subject: Input: tsc2007 - use disable_irq_nosync() in irq handler disable_irq() waits for all running handlers to complete before returning. As such, if it's used to disable an interrupt from that interrupt's handler it will deadlock. This replaces the dangerous instances with the _nosync() variant which doesn't have this problem. Signed-off-by: Ben Nizette Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/tsc2007.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c index 4ab07024689..536668fbda2 100644 --- a/drivers/input/touchscreen/tsc2007.c +++ b/drivers/input/touchscreen/tsc2007.c @@ -235,7 +235,7 @@ static irqreturn_t tsc2007_irq(int irq, void *handle) spin_lock_irqsave(&ts->lock, flags); if (likely(ts->get_pendown_state())) { - disable_irq(ts->irq); + disable_irq_nosync(ts->irq); hrtimer_start(&ts->timer, ktime_set(0, TS_POLL_DELAY), HRTIMER_MODE_REL); } -- cgit v1.2.3-18-g5258 From 3deb649e654ff87b87de9e415ac43ca8afbdff07 Mon Sep 17 00:00:00 2001 From: Ben Nizette Date: Fri, 17 Apr 2009 20:35:58 -0700 Subject: Input: ucb1400 - use disable_irq_nosync() in irq handler disable_irq() waits for all running handlers to complete before returning. As such, if it's used to disable an interrupt from that interrupt's handler it will deadlock. This replaces the dangerous instances with the _nosync() variant which doesn't have this problem. Signed-off-by: Ben Nizette Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/ucb1400_ts.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c index e868264fe79..f100c7f4c1d 100644 --- a/drivers/input/touchscreen/ucb1400_ts.c +++ b/drivers/input/touchscreen/ucb1400_ts.c @@ -256,7 +256,7 @@ static irqreturn_t ucb1400_hard_irq(int irqnr, void *devid) struct ucb1400_ts *ucb = devid; if (irqnr == ucb->irq) { - disable_irq(ucb->irq); + disable_irq_nosync(ucb->irq); ucb->irq_pending = 1; wake_up(&ucb->ts_wait); return IRQ_HANDLED; -- cgit v1.2.3-18-g5258 From 3f8c0df43dec51fbdfb2627f7574aa00a5fce98c Mon Sep 17 00:00:00 2001 From: Arjan Opmeer Date: Sat, 18 Apr 2009 19:05:40 -0700 Subject: Input: elantech - provide a workaround for jumpy cursor on firmware 2.34 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It seems that Elantech touchpad firmware version 2.34 on the Hercules eCAFÉ suffers from a problem where bogus coordinates get reported at the beginning of a touch action. This causes the mouse cursor or the scrolled page to jump. Included patch provides a workaround that discards mouse packets that are likely to contain bogus coordinates. The workaround is activated when we detect touchpad with fimware version 2.34. Signed-off-by: Arjan Opmeer Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/elantech.c | 27 +++++++++++++++++++++++++-- drivers/input/mouse/elantech.h | 5 +++-- 2 files changed, 28 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 6ab0eb1ada1..d3b59167379 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -1,7 +1,7 @@ /* - * Elantech Touchpad driver (v5) + * Elantech Touchpad driver (v6) * - * Copyright (C) 2007-2008 Arjan Opmeer + * Copyright (C) 2007-2009 Arjan Opmeer * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published @@ -178,6 +178,7 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse) struct elantech_data *etd = psmouse->private; unsigned char *packet = psmouse->packet; int fingers; + static int old_fingers; if (etd->fw_version_maj == 0x01) { /* byte 0: D U p1 p2 1 p3 R L @@ -190,6 +191,14 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse) fingers = (packet[0] & 0xc0) >> 6; } + if (etd->jumpy_cursor) { + /* Discard packets that are likely to have bogus coordinates */ + if (fingers > old_fingers) { + elantech_debug("elantech.c: discarding packet\n"); + goto discard_packet_v1; + } + } + input_report_key(dev, BTN_TOUCH, fingers != 0); /* byte 2: x7 x6 x5 x4 x3 x2 x1 x0 @@ -216,6 +225,9 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse) } input_sync(dev); + + discard_packet_v1: + old_fingers = fingers; } /* @@ -662,6 +674,17 @@ int elantech_init(struct psmouse *psmouse) param[0], param[1], param[2]); etd->capabilities = param[0]; + /* + * This firmware seems to suffer from misreporting coordinates when + * a touch action starts causing the mouse cursor or scrolled page + * to jump. Enable a workaround. + */ + if (etd->fw_version_maj == 0x02 && etd->fw_version_min == 0x22) { + pr_info("elantech.c: firmware version 2.34 detected, " + "enabling jumpy cursor workaround\n"); + etd->jumpy_cursor = 1; + } + if (elantech_set_absolute_mode(psmouse)) { pr_err("elantech.c: failed to put touchpad into absolute mode.\n"); goto init_fail; diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h index bee282b540b..ed848cc8081 100644 --- a/drivers/input/mouse/elantech.h +++ b/drivers/input/mouse/elantech.h @@ -1,7 +1,7 @@ /* - * Elantech Touchpad driver (v5) + * Elantech Touchpad driver (v6) * - * Copyright (C) 2007-2008 Arjan Opmeer + * Copyright (C) 2007-2009 Arjan Opmeer * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published @@ -104,6 +104,7 @@ struct elantech_data { unsigned char fw_version_min; unsigned char hw_version; unsigned char paritycheck; + unsigned char jumpy_cursor; unsigned char parity[256]; }; -- cgit v1.2.3-18-g5258 From b2546df69b6bef19513112fd54ffb5d37cb3eb7a Mon Sep 17 00:00:00 2001 From: Arjan Opmeer Date: Sat, 18 Apr 2009 19:10:17 -0700 Subject: Input: elantech - make sure touchpad is really in absolute mode There exist laptops with Elantech touchpads where switching to absolute mode does not happen, although writing the configuration register succeeds without error. Reading back the register afterwards reveils that the absolute mode bit is not set as if masked out by the touchpad firmware. Always read back register 0x10, make sure that for hardware version 1 the absolute mode bit is actually set and fail otherwise. This prevents the case where the touchpad is claimed by the Elantech driver but is nonetheless not working. Signed-off-by: Arjan Opmeer Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/elantech.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index d3b59167379..4bc78892ba9 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -375,9 +375,14 @@ static int elantech_set_absolute_mode(struct psmouse *psmouse) rc = -1; break; } + } + + if (rc == 0) { /* - * Read back reg 0x10. The touchpad is probably initalising - * and not ready until we read back the value we just wrote. + * Read back reg 0x10. For hardware version 1 we must make + * sure the absolute mode bit is set. For hardware version 2 + * the touchpad is probably initalising and not ready until + * we read back the value we just wrote. */ do { rc = elantech_read_reg(psmouse, 0x10, &val); @@ -385,12 +390,18 @@ static int elantech_set_absolute_mode(struct psmouse *psmouse) break; tries--; elantech_debug("elantech.c: retrying read (%d).\n", - tries); + tries); msleep(ETP_READ_BACK_DELAY); } while (tries > 0); - if (rc) + + if (rc) { pr_err("elantech.c: failed to read back register 0x10.\n"); - break; + } else if (etd->hw_version == 1 && + !(val & ETP_R10_ABSOLUTE_MODE)) { + pr_err("elantech.c: touchpad refuses " + "to switch to absolute mode.\n"); + rc = -1; + } } if (rc) -- cgit v1.2.3-18-g5258 From 2fdb11449ca82f4f1907fce4929df4e0bd267c50 Mon Sep 17 00:00:00 2001 From: "Denis V. Lunev" Date: Sun, 12 Apr 2009 08:14:46 +0100 Subject: mtd: mtd in mtd_release is unused without CONFIG_MTD_CHAR drivers/mtd/mtdcore.c: In function 'mtd_release': drivers/mtd/mtdcore.c:51: warning: unused variable 'mtd' [akpm: make it actually build] Signed-off-by: Denis V. Lunev Signed-off-by: Andrew Morton Signed-off-by: David Woodhouse --- drivers/mtd/mtdcore.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index fdd6ae85939..051b4d4ed21 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -48,11 +48,11 @@ static LIST_HEAD(mtd_notifiers); */ static void mtd_release(struct device *dev) { - struct mtd_info *mtd = dev_to_mtd(dev); + dev_t index = MTD_DEVT(dev_to_mtd(dev)->index); /* remove /dev/mtdXro node if needed */ - if (MTD_DEVT(mtd->index)) - device_destroy(mtd_class, MTD_DEVT(mtd->index) + 1); + if (index) + device_destroy(mtd_class, index + 1); } static ssize_t mtd_type_show(struct device *dev, -- cgit v1.2.3-18-g5258 From e7693548950ea5801d5d8b00414aed37033cf972 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Sat, 18 Apr 2009 12:29:42 +0300 Subject: mtd: expose subpage size via sysfs MTD has got sysfs support in 2.6.30-rc1. But subpage size is not exposed there - do this. UBI utilities badly need this parameter. At the moment there is no way to get subpage size - ioctls do not return it. And we just got sysfs support, so we can easilly extend it with this additional parameter. This can be merged late in the development cycle because: 1. sysfs support has been just added - there are no users for it so far, even. 2. UBI utilities really need this parameter, and it is better not to delay this. Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/mtdcore.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 051b4d4ed21..bccb4b1ffc4 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -132,6 +132,17 @@ static ssize_t mtd_writesize_show(struct device *dev, } static DEVICE_ATTR(writesize, S_IRUGO, mtd_writesize_show, NULL); +static ssize_t mtd_subpagesize_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mtd_info *mtd = dev_to_mtd(dev); + unsigned int subpagesize = mtd->writesize >> mtd->subpage_sft; + + return snprintf(buf, PAGE_SIZE, "%u\n", subpagesize); + +} +static DEVICE_ATTR(subpagesize, S_IRUGO, mtd_subpagesize_show, NULL); + static ssize_t mtd_oobsize_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -169,6 +180,7 @@ static struct attribute *mtd_attrs[] = { &dev_attr_size.attr, &dev_attr_erasesize.attr, &dev_attr_writesize.attr, + &dev_attr_subpagesize.attr, &dev_attr_oobsize.attr, &dev_attr_numeraseregions.attr, &dev_attr_name.attr, -- cgit v1.2.3-18-g5258 From 96ac7e88922da6ab33efea87c6b560ba5ab11e75 Mon Sep 17 00:00:00 2001 From: Steve Wise Date: Mon, 20 Apr 2009 13:53:15 -0700 Subject: RDMA/cxgb3: Adjust ORD/IRD (if needed) for peer2peer connections NFS/RDMA currently fails to set up connections if peer2peer is on. This is due to the fact that the NFS/RDMA client sets its ORD to 0. If peer2peer is set, make sure the active side ORD is >= 1 and the passive side IRD is >=1. Signed-off-by: Steve Wise Signed-off-by: Roland Dreier --- drivers/infiniband/hw/cxgb3/iwch_cm.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers') diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c index fef3f1ae722..52d7bb0c2a1 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_cm.c +++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c @@ -1830,6 +1830,10 @@ int iwch_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) ep->com.rpl_err = 0; ep->ird = conn_param->ird; ep->ord = conn_param->ord; + + if (peer2peer && ep->ird == 0) + ep->ird = 1; + PDBG("%s %d ird %d ord %d\n", __func__, __LINE__, ep->ird, ep->ord); get_ep(&ep->com); @@ -1915,6 +1919,10 @@ int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) conn_param->private_data, ep->plen); ep->ird = conn_param->ird; ep->ord = conn_param->ord; + + if (peer2peer && ep->ord == 0) + ep->ord = 1; + ep->com.tdev = h->rdev.t3cdev_p; cm_id->add_ref(cm_id); -- cgit v1.2.3-18-g5258 From e028cc55cc5c90a1c57eefe560a0cbb4df1fed14 Mon Sep 17 00:00:00 2001 From: Yossi Etigin Date: Mon, 20 Apr 2009 13:58:08 -0700 Subject: IPoIB: Disable NAPI while CQ is being drained If NAPI is enabled while IPoIB's CQ is being drained, it creates a race on priv->ibwc between ipoib_poll() and ipoib_drain_cq(), leading to memory corruption. The solution is to enable/disable NAPI in ipoib_ib_dev_{open/stop}() instead of in ipoib_{open/stop}(), and sync NAPI on the INITIALIZED flag instead on the ADMIN_UP flag. This way NAPI will be disabled when ipoib_drain_cq() is called. This fixes . Signed-off-by: Yossi Etigin Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_ib.c | 6 ++++-- drivers/infiniband/ulp/ipoib/ipoib_main.c | 5 +---- 2 files changed, 5 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index da608273983..e7e5adf84e8 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -685,7 +685,8 @@ int ipoib_ib_dev_open(struct net_device *dev) queue_delayed_work(ipoib_workqueue, &priv->ah_reap_task, round_jiffies_relative(HZ)); - set_bit(IPOIB_FLAG_INITIALIZED, &priv->flags); + if (!test_and_set_bit(IPOIB_FLAG_INITIALIZED, &priv->flags)) + napi_enable(&priv->napi); return 0; } @@ -804,7 +805,8 @@ int ipoib_ib_dev_stop(struct net_device *dev, int flush) struct ipoib_tx_buf *tx_req; int i; - clear_bit(IPOIB_FLAG_INITIALIZED, &priv->flags); + if (test_and_clear_bit(IPOIB_FLAG_INITIALIZED, &priv->flags)) + napi_disable(&priv->napi); ipoib_cm_dev_stop(dev); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 421a6640c9b..ab2c192c76b 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -106,8 +106,7 @@ int ipoib_open(struct net_device *dev) ipoib_dbg(priv, "bringing up interface\n"); - if (!test_and_set_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags)) - napi_enable(&priv->napi); + set_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags); if (ipoib_pkey_dev_delay_open(dev)) return 0; @@ -143,7 +142,6 @@ err_stop: ipoib_ib_dev_stop(dev, 1); err_disable: - napi_disable(&priv->napi); clear_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags); return -EINVAL; @@ -156,7 +154,6 @@ static int ipoib_stop(struct net_device *dev) ipoib_dbg(priv, "stopping interface\n"); clear_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags); - napi_disable(&priv->napi); netif_stop_queue(dev); -- cgit v1.2.3-18-g5258 From 1af9222b5223a7b04102dc8c403fa55fa15d5184 Mon Sep 17 00:00:00 2001 From: Chien Tung Date: Mon, 20 Apr 2009 14:50:36 -0700 Subject: RDMA/nes: Fix compiler warning at nes_verbs.c:1955 Initialize pbl_count_256 to 0 to get rid of the warning: drivers/infiniband/hw/nes/nes_verbs.c: In function 'nes_reg_mr': drivers/infiniband/hw/nes/nes_verbs.c:1955: warning: 'pbl_count_256' may be used uninitialized in this function Reported-by: Roland Dreier Signed-off-by: Chien Tung Signed-off-by: Roland Dreier --- drivers/infiniband/hw/nes/nes_verbs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index 7e5b5ba13a7..9279d056185 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -1952,7 +1952,7 @@ static int nes_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd, int ret; struct nes_adapter *nesadapter = nesdev->nesadapter; uint pg_cnt = 0; - u16 pbl_count_256; + u16 pbl_count_256 = 0; u16 pbl_count = 0; u8 use_256_pbls = 0; u8 use_4k_pbls = 0; -- cgit v1.2.3-18-g5258 From 3f32eb1185170524a81dadff2e67521585943a53 Mon Sep 17 00:00:00 2001 From: Don Wood Date: Mon, 20 Apr 2009 14:53:00 -0700 Subject: RDMA/nes: Fix bugs in nes_reg_phys_mr() The code incorrectly failed memory registration if the buffer was not page aligned. Also, the length field is mangled causing the hardware to think the registration is much larger than it really is. The fix is to remove the page alignment restriction as well the incorrect length adjustment. Also make sure that all buffers after the first start at a page boundary, and all buffers except the last end on a page boundary. Signed-off-by: Don Wood Signed-off-by: Roland Dreier --- drivers/infiniband/hw/nes/nes_verbs.c | 27 +++++++++++++-------------- 1 file changed, 13 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index 9279d056185..f04bb1a5da4 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -2122,6 +2122,7 @@ static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd, struct nes_root_vpbl root_vpbl; u32 stag; u32 i; + unsigned long mask; u32 stag_index = 0; u32 next_stag_index = 0; u32 driver_key = 0; @@ -2150,6 +2151,9 @@ static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd, return ERR_PTR(-E2BIG); } + if ((buffer_list[0].addr ^ *iova_start) & ~PAGE_MASK) + return ERR_PTR(-EINVAL); + err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs, nesadapter->max_mr, &stag_index, &next_stag_index); if (err) { @@ -2215,19 +2219,16 @@ static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd, root_pbl_index++; cur_pbl_index = 0; } - if (buffer_list[i].addr & ~PAGE_MASK) { - /* TODO: Unwind allocated buffers */ - nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); - nes_debug(NES_DBG_MR, "Unaligned Memory Buffer: 0x%x\n", - (unsigned int) buffer_list[i].addr); - ibmr = ERR_PTR(-EINVAL); - kfree(nesmr); - goto reg_phys_err; - } - if (!buffer_list[i].size) { + mask = !buffer_list[i].size; + if (i != 0) + mask |= buffer_list[i].addr; + if (i != num_phys_buf - 1) + mask |= buffer_list[i].addr + buffer_list[i].size; + + if (mask & ~PAGE_MASK) { nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); - nes_debug(NES_DBG_MR, "Invalid Buffer Size\n"); + nes_debug(NES_DBG_MR, "Invalid buffer addr or size\n"); ibmr = ERR_PTR(-EINVAL); kfree(nesmr); goto reg_phys_err; @@ -2238,7 +2239,7 @@ static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd, if ((buffer_list[i-1].addr+PAGE_SIZE) != buffer_list[i].addr) single_page = 0; } - vpbl.pbl_vbase[cur_pbl_index].pa_low = cpu_to_le32((u32)buffer_list[i].addr); + vpbl.pbl_vbase[cur_pbl_index].pa_low = cpu_to_le32((u32)buffer_list[i].addr & PAGE_MASK); vpbl.pbl_vbase[cur_pbl_index++].pa_high = cpu_to_le32((u32)((((u64)buffer_list[i].addr) >> 32))); } @@ -2251,8 +2252,6 @@ static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd, " length = 0x%016lX, index = 0x%08X\n", stag, (unsigned long)*iova_start, (unsigned long)region_length, stag_index); - region_length -= (*iova_start)&PAGE_MASK; - /* Make the leaf PBL the root if only one PBL */ if (root_pbl_index == 1) { root_vpbl.pbl_pbase = vpbl.pbl_pbase; -- cgit v1.2.3-18-g5258 From cde9e2f9307dd6af6bf8c5f02e41a6e27da9682a Mon Sep 17 00:00:00 2001 From: Steve Wise Date: Mon, 20 Apr 2009 17:00:53 -0700 Subject: RDMA/cxgb3: Don't zero QP attrs when moving to IDLE QP attributes must stay initialized when moving back to IDLE. Zeroing them will crash the system in _flush_qp() if the QP is subsequently moved to ERROR and back to IDLE. Signed-off-by: Steve Wise Signed-off-by: Roland Dreier --- drivers/infiniband/hw/cxgb3/iwch_qp.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/cxgb3/iwch_qp.c b/drivers/infiniband/hw/cxgb3/iwch_qp.c index 2f546a62533..27bbdc8e773 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_qp.c +++ b/drivers/infiniband/hw/cxgb3/iwch_qp.c @@ -1069,7 +1069,6 @@ int iwch_modify_qp(struct iwch_dev *rhp, struct iwch_qp *qhp, goto out; } qhp->attr.state = IWCH_QP_STATE_IDLE; - memset(&qhp->attr, 0, sizeof(qhp->attr)); break; case IWCH_QP_STATE_TERMINATE: if (!internal) { -- cgit v1.2.3-18-g5258 From 8531f1f14a85c004d5063a0a78c72d0b686ccb8e Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Mon, 20 Apr 2009 21:12:25 -0700 Subject: IB/mthca: Fix timeout for INIT_HCA and a few other commands Commands INIT_HCA, CLOSE_HCA, SYS_EN, SYS_DIS, and CLOSE_IB all have 1 second timeouts. For INIT_HCA this causes problems when had more than 2^18 are QPs configured, since the command takes more than 1 second to complete. All other commands have 60-second timeouts. This patch makes the above commands consistent with the rest of the commands (and with the chip documentation). This patch is an expansion of a patch from Arthur Kepner fixing just the INIT_HCA timeout. Signed-off-by: Jack Morgenstein Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_cmd.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c index c33e1c53c79..6d55f9d748f 100644 --- a/drivers/infiniband/hw/mthca/mthca_cmd.c +++ b/drivers/infiniband/hw/mthca/mthca_cmd.c @@ -157,13 +157,15 @@ enum { enum { CMD_TIME_CLASS_A = (HZ + 999) / 1000 + 1, CMD_TIME_CLASS_B = (HZ + 99) / 100 + 1, - CMD_TIME_CLASS_C = (HZ + 9) / 10 + 1 + CMD_TIME_CLASS_C = (HZ + 9) / 10 + 1, + CMD_TIME_CLASS_D = 60 * HZ }; #else enum { CMD_TIME_CLASS_A = 60 * HZ, CMD_TIME_CLASS_B = 60 * HZ, - CMD_TIME_CLASS_C = 60 * HZ + CMD_TIME_CLASS_C = 60 * HZ, + CMD_TIME_CLASS_D = 60 * HZ }; #endif @@ -598,7 +600,7 @@ int mthca_SYS_EN(struct mthca_dev *dev, u8 *status) u64 out; int ret; - ret = mthca_cmd_imm(dev, 0, &out, 0, 0, CMD_SYS_EN, HZ, status); + ret = mthca_cmd_imm(dev, 0, &out, 0, 0, CMD_SYS_EN, CMD_TIME_CLASS_D, status); if (*status == MTHCA_CMD_STAT_DDR_MEM_ERR) mthca_warn(dev, "SYS_EN DDR error: syn=%x, sock=%d, " @@ -611,7 +613,7 @@ int mthca_SYS_EN(struct mthca_dev *dev, u8 *status) int mthca_SYS_DIS(struct mthca_dev *dev, u8 *status) { - return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, HZ, status); + return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, CMD_TIME_CLASS_C, status); } static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm, @@ -1390,7 +1392,7 @@ int mthca_INIT_HCA(struct mthca_dev *dev, MTHCA_PUT(inbox, param->uarc_base, INIT_HCA_UAR_CTX_BASE_OFFSET); } - err = mthca_cmd(dev, mailbox->dma, 0, 0, CMD_INIT_HCA, HZ, status); + err = mthca_cmd(dev, mailbox->dma, 0, 0, CMD_INIT_HCA, CMD_TIME_CLASS_D, status); mthca_free_mailbox(dev, mailbox); return err; @@ -1450,12 +1452,12 @@ int mthca_INIT_IB(struct mthca_dev *dev, int mthca_CLOSE_IB(struct mthca_dev *dev, int port, u8 *status) { - return mthca_cmd(dev, 0, port, 0, CMD_CLOSE_IB, HZ, status); + return mthca_cmd(dev, 0, port, 0, CMD_CLOSE_IB, CMD_TIME_CLASS_A, status); } int mthca_CLOSE_HCA(struct mthca_dev *dev, int panic, u8 *status) { - return mthca_cmd(dev, 0, 0, panic, CMD_CLOSE_HCA, HZ, status); + return mthca_cmd(dev, 0, 0, panic, CMD_CLOSE_HCA, CMD_TIME_CLASS_C, status); } int mthca_SET_IB(struct mthca_dev *dev, struct mthca_set_ib_param *param, -- cgit v1.2.3-18-g5258 From 5bf0da7dd0ae193e072412519cba1d77b6196c61 Mon Sep 17 00:00:00 2001 From: Nicolas Morey-Chaisemartin Date: Tue, 21 Apr 2009 10:11:06 -0700 Subject: mlx4_core: Fix memory leak in mlx4_enable_msi_x() When the msi_x option is enabled but pci_enable_msix() fails (not enough vectors are available etc), the entries array was not freed on the error path. Signed-off-by: Nicolas Morey-Chaisemartin Signed-off-by: Roland Dreier --- drivers/net/mlx4/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index 102bac90a30..30bea968969 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -976,7 +976,7 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev) nreq = err; goto retry; } - + kfree(entries); goto no_msi; } -- cgit v1.2.3-18-g5258 From cc005fa20c5229c283bea4958869da1e3c8a3720 Mon Sep 17 00:00:00 2001 From: Matt Kraai Date: Tue, 21 Apr 2009 10:43:21 -0700 Subject: RDMA/nes: Remove root_256()'s unused pbl_count_256 parameter Signed-off-by: Matt Kraai Acked-by: Chien Tung Signed-off-by: Roland Dreier --- drivers/infiniband/hw/nes/nes_verbs.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index f04bb1a5da4..504e31d9f50 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -1895,8 +1895,7 @@ static int nes_destroy_cq(struct ib_cq *ib_cq) static u32 root_256(struct nes_device *nesdev, struct nes_root_vpbl *root_vpbl, struct nes_root_vpbl *new_root, - u16 pbl_count_4k, - u16 pbl_count_256) + u16 pbl_count_4k) { u64 leaf_pbl; int i, j, k; @@ -2012,7 +2011,7 @@ static int nes_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd, } if (use_256_pbls && use_two_level) { - if (root_256(nesdev, root_vpbl, &new_root, pbl_count_4k, pbl_count_256) == 1) { + if (root_256(nesdev, root_vpbl, &new_root, pbl_count_4k) == 1) { if (new_root.pbl_pbase != 0) root_vpbl = &new_root; } else { -- cgit v1.2.3-18-g5258 From 5d1af5c83232c5a02b9dc0fe43053b4ddc005224 Mon Sep 17 00:00:00 2001 From: Miroslaw Walukiewicz Date: Tue, 21 Apr 2009 16:16:48 -0700 Subject: RDMA/nes: Fix resource issues in nes_create_cq() and nes_destroy_cq() In error paths where a CQ is not created, pbl is not freeed properly. In nes_destroy_cq(), add the corresponding check for nescq->mcrqf to not call nes_free_resource() when it is already done in nes_create_cq(). Signed-off-by: Miroslaw Walukiewicz Signed-off-by: Chien Tung Signed-off-by: Roland Dreier --- drivers/infiniband/hw/nes/nes_verbs.c | 26 +++++++++++++++++++++++++- drivers/infiniband/hw/nes/nes_verbs.h | 1 + 2 files changed, 26 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index 504e31d9f50..8b460c2ce89 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -1627,6 +1627,7 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, nescq->hw_cq.cq_number = nes_ucontext->mcrqf & 0xffff; else nescq->hw_cq.cq_number = nesvnic->mcrq_qp_id + nes_ucontext->mcrqf-1; + nescq->mcrqf = nes_ucontext->mcrqf; nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); } nes_debug(NES_DBG_CQ, "CQ Virtual Address = %08lX, size = %u.\n", @@ -1682,6 +1683,12 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, if (!context) pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, nescq->hw_cq.cq_pbase); + else { + pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, + nespbl->pbl_vbase, nespbl->pbl_pbase); + kfree(nespbl); + } + nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); kfree(nescq); return ERR_PTR(-ENOMEM); @@ -1705,6 +1712,11 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, if (!context) pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, nescq->hw_cq.cq_pbase); + else { + pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, + nespbl->pbl_vbase, nespbl->pbl_pbase); + kfree(nespbl); + } nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); kfree(nescq); return ERR_PTR(-ENOMEM); @@ -1722,6 +1734,11 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, if (!context) pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, nescq->hw_cq.cq_pbase); + else { + pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, + nespbl->pbl_vbase, nespbl->pbl_pbase); + kfree(nespbl); + } nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); kfree(nescq); return ERR_PTR(-ENOMEM); @@ -1774,6 +1791,11 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, if (!context) pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, nescq->hw_cq.cq_pbase); + else { + pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, + nespbl->pbl_vbase, nespbl->pbl_pbase); + kfree(nespbl); + } nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); kfree(nescq); return ERR_PTR(-EIO); @@ -1855,7 +1877,9 @@ static int nes_destroy_cq(struct ib_cq *ib_cq) set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, (nescq->hw_cq.cq_number | ((u32)PCI_FUNC(nesdev->pcidev->devfn) << 16))); - nes_free_resource(nesadapter, nesadapter->allocated_cqs, nescq->hw_cq.cq_number); + if (!nescq->mcrqf) + nes_free_resource(nesadapter, nesadapter->allocated_cqs, nescq->hw_cq.cq_number); + atomic_set(&cqp_request->refcount, 2); nes_post_cqp_request(nesdev, cqp_request); diff --git a/drivers/infiniband/hw/nes/nes_verbs.h b/drivers/infiniband/hw/nes/nes_verbs.h index 5e48f67fbe8..41c07f29f7c 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.h +++ b/drivers/infiniband/hw/nes/nes_verbs.h @@ -112,6 +112,7 @@ struct nes_cq { spinlock_t lock; u8 virtual_cq; u8 pad[3]; + u32 mcrqf; }; struct nes_wq { -- cgit v1.2.3-18-g5258 From 72021788678523047161e97b3dfed695e802a5fd Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Mon, 17 Nov 2008 13:58:11 +0800 Subject: drm/i915: add support for G41 chipset This had been delayed for some time due to failure to work on the one piece of G41 hardware we had, and lack of success reports from anybody else. Current hardware appears to be OK. Signed-off-by: Zhenyu Wang [anholt: hand-applied due to conflicts with IGD patches] Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_drv.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index d7471fe1beb..25065923b8a 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -787,7 +787,8 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller); (dev)->pci_device == 0x2A42 || \ (dev)->pci_device == 0x2E02 || \ (dev)->pci_device == 0x2E12 || \ - (dev)->pci_device == 0x2E22) + (dev)->pci_device == 0x2E22 || \ + (dev)->pci_device == 0x2E32) #define IS_I965GM(dev) ((dev)->pci_device == 0x2A02) @@ -796,6 +797,7 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller); #define IS_G4X(dev) ((dev)->pci_device == 0x2E02 || \ (dev)->pci_device == 0x2E12 || \ (dev)->pci_device == 0x2E22 || \ + (dev)->pci_device == 0x2E32 || \ IS_GM45(dev)) #define IS_IGDG(dev) ((dev)->pci_device == 0xa001) -- cgit v1.2.3-18-g5258 From d816f6ac4f9877509baa3610be0d25b7afc29c00 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Sat, 18 Apr 2009 10:43:32 +0800 Subject: drm/i915: fix unpaired i915 device mutex on entervt failure. Signed-off-by: Wu Fengguang Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_gem.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 4642115902d..ee896d91c5b 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4087,8 +4087,10 @@ i915_gem_entervt_ioctl(struct drm_device *dev, void *data, dev_priv->mm.suspended = 0; ret = i915_gem_init_ringbuffer(dev); - if (ret != 0) + if (ret != 0) { + mutex_unlock(&dev->struct_mutex); return ret; + } spin_lock(&dev_priv->mm.active_list_lock); BUG_ON(!list_empty(&dev_priv->mm.active_list)); -- cgit v1.2.3-18-g5258 From 355d7f370b51bbb6f31aaf9f98861057e1e6bbb2 Mon Sep 17 00:00:00 2001 From: Chris Wright Date: Fri, 17 Apr 2009 01:18:55 +0000 Subject: drm/i915: fix up error path leak in i915_cmdbuffer Commit 201361a5 introduces a leak when unwinding on error. Reorder unwind, and eliminate leak. Cc: Eric Anholt Cc: Keith Packard Cc: Jesse Barnes Signed-off-by: Chris Wright [anholt: fixed uninit variable use introduced in original patch] Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_dma.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 272614389c0..051134c56ae 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -713,18 +713,18 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data, mutex_unlock(&dev->struct_mutex); if (ret) { DRM_ERROR("i915_dispatch_cmdbuffer failed\n"); - goto fail_batch_free; + goto fail_clip_free; } if (sarea_priv) sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv); -fail_batch_free: - drm_free(batch_data, cmdbuf->sz, DRM_MEM_DRIVER); fail_clip_free: drm_free(cliprects, cmdbuf->num_cliprects * sizeof(struct drm_clip_rect), DRM_MEM_DRIVER); +fail_batch_free: + drm_free(batch_data, cmdbuf->sz, DRM_MEM_DRIVER); return ret; } -- cgit v1.2.3-18-g5258 From 162dedd39dcc6eca3fc0d29cf19658c6c13b840e Mon Sep 17 00:00:00 2001 From: Thomas Renninger Date: Fri, 3 Apr 2009 06:34:00 -0700 Subject: PCI quirk: disable MSI on VIA VT3364 chipsets Without this patch, Broadcom BCM5906 Ethernet controllers set up via MSI cause the machine to hang. Tejun agreed that the best is to blacklist the whole chipset and after adding it, seeing the other VIA quirks disabling MSI, this very much looks like the right way. Cc: Signed-off-by: Thomas Renninger Signed-off-by: Jesse Barnes --- drivers/pci/quirks.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 0254741bece..3067673d54f 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2033,6 +2033,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_di DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3364, quirk_disable_all_msi); /* Disable MSI on chipsets that are known to not support it */ static void __devinit quirk_disable_msi(struct pci_dev *dev) -- cgit v1.2.3-18-g5258 From 0bb1be3e30bfc3e09fa0ff1e887ac7da4a16c3a2 Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Thu, 16 Apr 2009 13:31:10 -0600 Subject: x86/PCI: Move set_pci_bus_resources_arch_default into arch/x86 Commit 30a18d6c3f1e774de656ebd8ff219d53e2ba4029 introduced a new function to set the PCI bus resources. Unfortunately, neither the author, nor the committers seemed to know that we already have somewhere to do that -- pcibios_fixup_bus(). This patch moves the hook (used only by the K8 code) into x86-specific code where it should have been in the first place. Cc: Yinghai Lu Signed-off-by: Matthew Wilcox Acked-by: Ingo Molnar Signed-off-by: Jesse Barnes --- drivers/pci/probe.c | 6 ------ 1 file changed, 6 deletions(-) (limited to 'drivers') diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 8eb50dffb78..e3c3e081b83 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1118,10 +1118,6 @@ unsigned int __devinit pci_scan_child_bus(struct pci_bus *bus) return max; } -void __attribute__((weak)) set_pci_bus_resources_arch_default(struct pci_bus *b) -{ -} - struct pci_bus * pci_create_bus(struct device *parent, int bus, struct pci_ops *ops, void *sysdata) { @@ -1180,8 +1176,6 @@ struct pci_bus * pci_create_bus(struct device *parent, b->resource[0] = &ioport_resource; b->resource[1] = &iomem_resource; - set_pci_bus_resources_arch_default(b); - return b; dev_create_file_err: -- cgit v1.2.3-18-g5258 From 681bf597215c62bd6f5ae1180a58a38997122b5b Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Mon, 13 Apr 2009 18:28:54 -0700 Subject: PCI: cleanup debug output resources Remove outputs for 0 sized resources and indicate prefetchability. Signed-off-by: Yinghai Lu Signed-off-by: Jesse Barnes --- drivers/pci/setup-bus.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 8d9da9d30a6..a00f85471b6 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -536,11 +536,13 @@ static void pci_bus_dump_res(struct pci_bus *bus) for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) { struct resource *res = bus->resource[i]; - if (!res) + if (!res || !res->end) continue; dev_printk(KERN_DEBUG, &bus->dev, "resource %d %s %pR\n", i, - (res->flags & IORESOURCE_IO) ? "io: " : "mem:", res); + (res->flags & IORESOURCE_IO) ? "io: " : + ((res->flags & IORESOURCE_PREFETCH)? "pref mem":"mem:"), + res); } } -- cgit v1.2.3-18-g5258 From cffb2fafb726c898fec1c5ae33717741f94fda83 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 10 Apr 2009 15:17:50 -0700 Subject: docbooks: add/fix PCI kernel-doc Add drivers/pci/*.c source files to DocBook/kernel-api.tmpl and update those pci/*.c source files that need kernel-doc fixes. Signed-off-by: Randy Dunlap Signed-off-by: Jesse Barnes --- drivers/pci/access.c | 4 ++-- drivers/pci/htirq.c | 1 + drivers/pci/pci-sysfs.c | 12 ++++++++---- drivers/pci/slot.c | 4 ++-- 4 files changed, 13 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/pci/access.c b/drivers/pci/access.c index 64dd7df90e6..0f370651268 100644 --- a/drivers/pci/access.c +++ b/drivers/pci/access.c @@ -87,8 +87,8 @@ EXPORT_SYMBOL(pci_read_vpd); * pci_write_vpd - Write entry to Vital Product Data * @dev: pci device struct * @pos: offset in vpd space - * @count: number of bytes to read - * @val: value to write + * @count: number of bytes to write + * @buf: buffer containing write data * */ ssize_t pci_write_vpd(struct pci_dev *dev, loff_t pos, size_t count, const void *buf) diff --git a/drivers/pci/htirq.c b/drivers/pci/htirq.c index bf7d6ce9bbb..6808d8333ec 100644 --- a/drivers/pci/htirq.c +++ b/drivers/pci/htirq.c @@ -158,6 +158,7 @@ int ht_create_irq(struct pci_dev *dev, int idx) /** * ht_destroy_irq - destroy an irq created with ht_create_irq + * @irq: irq to be destroyed * * This reverses ht_create_irq removing the specified irq from * existence. The irq should be free before this happens. diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index a7eb1b46a5a..85ebd02a64a 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -492,6 +492,7 @@ write_vpd_attr(struct kobject *kobj, struct bin_attribute *bin_attr, /** * pci_read_legacy_io - read byte(s) from legacy I/O port space * @kobj: kobject corresponding to file to read from + * @bin_attr: struct bin_attribute for this file * @buf: buffer to store results * @off: offset into legacy I/O port space * @count: number of bytes to read @@ -517,6 +518,7 @@ pci_read_legacy_io(struct kobject *kobj, struct bin_attribute *bin_attr, /** * pci_write_legacy_io - write byte(s) to legacy I/O port space * @kobj: kobject corresponding to file to read from + * @bin_attr: struct bin_attribute for this file * @buf: buffer containing value to be written * @off: offset into legacy I/O port space * @count: number of bytes to write @@ -733,9 +735,9 @@ pci_mmap_resource_wc(struct kobject *kobj, struct bin_attribute *attr, /** * pci_remove_resource_files - cleanup resource files - * @dev: dev to cleanup + * @pdev: dev to cleanup * - * If we created resource files for @dev, remove them from sysfs and + * If we created resource files for @pdev, remove them from sysfs and * free their resources. */ static void @@ -793,9 +795,9 @@ static int pci_create_attr(struct pci_dev *pdev, int num, int write_combine) /** * pci_create_resource_files - create resource files in sysfs for @dev - * @dev: dev in question + * @pdev: dev in question * - * Walk the resources in @dev creating files for each resource available. + * Walk the resources in @pdev creating files for each resource available. */ static int pci_create_resource_files(struct pci_dev *pdev) { @@ -829,6 +831,7 @@ void __weak pci_remove_resource_files(struct pci_dev *dev) { return; } /** * pci_write_rom - used to enable access to the PCI ROM display * @kobj: kernel object handle + * @bin_attr: struct bin_attribute for this file * @buf: user input * @off: file offset * @count: number of byte in input @@ -852,6 +855,7 @@ pci_write_rom(struct kobject *kobj, struct bin_attribute *bin_attr, /** * pci_read_rom - read a PCI ROM * @kobj: kernel object handle + * @bin_attr: struct bin_attribute for this file * @buf: where to put the data we read from the ROM * @off: file offset * @count: number of bytes to read diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c index 21189447e54..fe95ce20bcb 100644 --- a/drivers/pci/slot.c +++ b/drivers/pci/slot.c @@ -264,8 +264,8 @@ EXPORT_SYMBOL_GPL(pci_create_slot); /** * pci_renumber_slot - update %struct pci_slot -> number - * @slot - %struct pci_slot to update - * @slot_nr - new number for slot + * @slot: &struct pci_slot to update + * @slot_nr: new number for slot * * The primary purpose of this interface is to allow callers who earlier * created a placeholder slot in pci_create_slot() by passing a -1 as -- cgit v1.2.3-18-g5258 From 1b6b8ce2ac372ea1f2065b89228ede105eb68dc5 Mon Sep 17 00:00:00 2001 From: Yu Zhao Date: Thu, 9 Apr 2009 14:57:39 +0800 Subject: PCI: only save/restore existent registers in the PCIe capability PCIe 1.1 base neither requires the endpoint to implement the entire PCIe capability structure nor specifies default values of registers that are not implemented by the device. So we only save and restore registers that must be implemented by different device types if the device PCIe capability version is 1. PCIe 1.1 Capability Structure Expansion ECN and PCIe 2.0 requires all registers in the PCIe capability to be either implemented or hardwired to 0. Their PCIe capability version is 2. Signed-off-by: Yu Zhao Signed-off-by: Jesse Barnes --- drivers/pci/pci.c | 70 ++++++++++++++++++++++++++++++++++++++++++++----------- 1 file changed, 56 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/pci/pci.c b/drivers/pci