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* drbd: Now we need to handle the ed_uuid of an diskless, unconnected primary ↵Philipp Reisner2010-10-14
| | | | | | | correctly Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Disabled the crashed_primary detection for re-attach of last data ↵Philipp Reisner2010-10-14
| | | | | | | while IO is frozen Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Do not allow a fencing-policy of resource-and-stonith with protocol APhilipp Reisner2010-10-14
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Finished the "on-no-data-accessible suspend-io;" functionalityPhilipp Reisner2010-10-14
| | | | | | | | | When no data is accessible (no connection to the peer, nor a local disk) allow the user to select to freeze all IO operations instead of getting IO errors. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Removed redundant error checks in the request code pathPhilipp Reisner2010-10-14
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: factored drbd_req_make_private_bio() out of drbd_req_new()Philipp Reisner2010-10-14
| | | | | | | Preparing tl_thaw_dio() Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Do not send two barriers without any writes between themPhilipp Reisner2010-10-14
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: factored tl_restart() out of tl_clear().Philipp Reisner2010-10-14
| | | | | | | | If IO was frozen for a temporal network outage, resend the content of the transfer-log into the newly established connection. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: mod_req has now a return valuePhilipp Reisner2010-10-14
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Track all IO requests on the TL, not writes onlyPhilipp Reisner2010-10-14
| | | | | | | With that the drbd_fail_pending_reads() function becomes obsolete. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: renamed drbd_tl_epoch.n_req to drbd_tl_epoch.n_writesPhilipp Reisner2010-10-14
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* amiga floppy: Compile failure fixesVivek Goyal2010-09-25
| | | | | | | o Compile fixes for amiga floppy driver. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* atari floppy: Stop sharing request queue across multiple gendisksVivek Goyal2010-09-24
| | | | | | | | | | o Use one request queue per gendisk instead of sharing the queue. o Don't have hardware. No compile testing or run time testing done. Completely untested. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* amiga floppy: Stop sharing request queue across multiple gendisksVivek Goyal2010-09-24
| | | | | | | | | | o Use one request queue per gendisk instead of sharing request queue o Don't have hardware. No compile testing or run time testing done. Completely untested. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* floppy: switch to one queue per drive instead of sharing a queueJens Axboe2010-09-22
| | | | | | | | | | | | | Pretty straight forward conversion. Note that we do round-robin between the drives that have available requests, before we simply used the drive that the IO scheduler told us to. Since the IO scheduler doesn't care about multiple devices per queue, the resulting sort would not have made sense. Fixed by Vivek to get rid of a double lock problem in set_next_request() Signed-off-by: Jens Axboe <jaxboe@fusionio.com> Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
* cciss: remove some superfluous tests from cciss_bigpassthru()Stephen M. Cameron2010-09-10
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* cciss: factor out cciss_big_passthruStephen M. Cameron2010-09-10
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* cciss: factor out cciss_passthruStephen M. Cameron2010-09-10
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* cciss: factor out cciss_getluninfoStephen M. Cameron2010-09-10
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* cciss: factor out cciss_getdrivverStephen M. Cameron2010-09-10
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* cciss: factor out cciss_getfirmverStephen M. Cameron2010-09-10
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* cciss: factor out cciss_getbustypesStephen M. Cameron2010-09-10
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* cciss: factor out cciss_getheartbeatStephen M. Cameron2010-09-10
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* cciss: factor out cciss_setnodenameStephen M. Cameron2010-09-10
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* cciss: factor out cciss_getnodenameStephen M. Cameron2010-09-10
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* cciss: factor out cciss_setintinfoStephen M. Cameron2010-09-10
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* cciss: factor out cciss_getintinfoStephen M. Cameron2010-09-10
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* cciss: factor out cciss_getpciinfoStephen M. Cameron2010-09-10
| | | | | Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* loop: add some basic read-only sysfs attributesMilan Broz2010-08-23
| | | | | | | | | | | | | | | | | | | | Create /sys/block/loopX/loop directory and provide these attributes: - backing_file - autoclear - offset - sizelimit This loop directory is present only if loop device is configured. To be used in util-linux-ng (and possibly elsewhere like udev rules) where code need to get loop attributes from kernel (and not store duplicate info in userspace). Moreover loop ioctls are not even able to provide full backing file info because of buffer limits. Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2010-08-22
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel: (58 commits) drm/i915,intel_agp: Add support for Sandybridge D0 drm/i915: fix render pipe control notify on sandybridge agp/intel: set 40-bit dma mask on Sandybridge drm/i915: Remove the conflicting BUG_ON() drm/i915/suspend: s/IS_IRONLAKE/HAS_PCH_SPLIT/ drm/i915/suspend: Flush register writes before busy-waiting. i915: disable DAC on Ironlake also when doing CRT load detection. drm/i915: wait for actual vblank, not just 20ms drm/i915: make sure eDP PLL is enabled at the right time drm/i915: fix VGA plane disable for Ironlake+ drm/i915: eDP mode set sequence corrections drm/i915: add panel reset workaround drm/i915: Enable RC6 on Ironlake. drm/i915/sdvo: Only set is_lvds if we have a valid fixed mode. drm/i915: Set up a render context on Ironlake drm/i915 invalidate indirect state pointers at end of ring exec drm/i915: Wake-up wait_request() from elapsed hang-check (v2) drm/i915: Apply i830 errata for cursor alignment drm/i915: Only update i845/i865 CURBASE when disabled (v2) drm/i915: FBC is updated within set_base() so remove second call in mode_set() ...
| * drm/i915,intel_agp: Add support for Sandybridge D0Zhenyu Wang2010-08-22
| | | | | | | | | | Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
| * drm/i915: fix render pipe control notify on sandybridgeZhenyu Wang2010-08-22
| | | | | | | | | | | | | | | | This one is missed in last pipe control fix for sandybridge, that really unmask interrupt bit for notify in render engine IMR. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
| * agp/intel: set 40-bit dma mask on SandybridgeZhenyu Wang2010-08-22
| | | | | | | | | | Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
| * drm/i915: Remove the conflicting BUG_ON()Chris Wilson2010-08-22
| | | | | | | | | | | | | | | | | | | | | | | | | | We now attempt to free "active" objects following a GPU hang as either the GPU will be reset or the hang is permenant. In either case, the GPU writes will not be flushed to main memory and it should be safe to return that memory back to the system. The BUG_ON(active) is thus overkill and can erroneously fire after a EIO. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Eric Anholt <eric@anholt.net>
| * drm/i915/suspend: s/IS_IRONLAKE/HAS_PCH_SPLIT/Chris Wilson2010-08-22
| | | | | | | | | | | | | | For the shared paths on the next generation chipsets. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Eric Anholt <eric@anholt.net>
| * drm/i915/suspend: Flush register writes before busy-waiting.Chris Wilson2010-08-22
| | | | | | | | | | Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Eric Anholt <eric@anholt.net>
| * i915: disable DAC on Ironlake also when doing CRT load detection.Dave Airlie2010-08-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Like on Sandybridge, disabling the DAC here when doing CRT load detect avoids forever hangs waiting on the hardware. test procedure on HP 2740p: boot with no VGA plugged in, start X, plug in VGA monitor (1280x1024) chvt 3 machine hangs waiting forever. Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Eric Anholt <eric@anholt.net>
| * drm/i915: wait for actual vblank, not just 20msJesse Barnes2010-08-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Waiting for a hard coded 20ms isn't always enough to make sure a vblank period has actually occurred, so add code to make sure we really have passed through a vblank period (or that the pipe is off when disabling). This prevents problems with mode setting and link training, and seems to fix a bug like https://bugs.freedesktop.org/show_bug.cgi?id=29278, but on an HP 8440p instead. Hopefully also fixes https://bugs.freedesktop.org/show_bug.cgi?id=29141. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net>
| * drm/i915: make sure eDP PLL is enabled at the right timeJesse Barnes2010-08-18
| | | | | | | | | | | | | | We need to make sure the eDP PLL is enabled before the pipes or planes, so do it as part of the DP prepare mode set function. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * drm/i915: fix VGA plane disable for Ironlake+Jesse Barnes2010-08-18
| | | | | | | | | | | | | | | | | | | | We need to use I/O port instructions to access VGA registers on Ironlake+, and it doesn't hurt on other platforms, so switch the VGA plane disable function over to using them. Move it to init time as well while we're at it, no need to repeatedly disable the VGA plane with every mode set and DPMS event. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * drm/i915: eDP mode set sequence correctionsJesse Barnes2010-08-18
| | | | | | | | | | | | | | | | We should disable the panel first when shutting down an eDP link. And when turning one on, the panel needs to be enabled before link training or eDP I/O won't be enabled. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * drm/i915: add panel reset workaroundJesse Barnes2010-08-18
| | | | | | | | | | | | | | | | Ironlake requires that we clear the reset panel bit during power sequences and restore it afterwards. Uncondtionally add code to do that since it should be harmless on SNB+. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * drm/i915: Enable RC6 on Ironlake.Zou Nan hai2010-08-09
| | | | | | | | | | | | | | | | RC6 allows the GPU to enter a lower power state when the GPU is idle. Signed-off-by: Zou Nan hai <nanhai.zou@intel.com> [anholt: Fixed the !renderctx error path to actually not enable RC6.] Signed-off-by: Eric Anholt <eric@anholt.net>
| * drm/i915/sdvo: Only set is_lvds if we have a valid fixed mode.Chris Wilson2010-08-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we have failed to ascertain the fixed mode for the LVDS panel, then trust the pixel clock ranges reported for the connection when determing valid modes. This makes intel_sdvo_mode_valid() consistent with intel_lvds_mode_valid() which is also a no-op is there is no fixed mode defined. (Since the mode is both validated by SDVO and LVDS, why are checking against an LVDS fixed mode in SDVO...) By only defining is_lvds to be true when we actually have an LVDS output with a fixed mode, we avoid various potential NULL deferences where the assumption is made that all LVDS outputs have a fixed mode. References: Bug 29449 - [Q35] failure to read EDID/vbios for LVDS, no mode => no output https://bugs.freedesktop.org/show_bug.cgi?id=29449 The primary failure in this bug is not finding the EDID and determining the correct fixed panel mode. However, this patch should fix the secondary issue of not enabling any of the standard modes for the panel either. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Eric Anholt <eric@anholt.net>
| * drm/i915: Set up a render context on IronlakeZou Nan hai2010-08-09
| | | | | | | | | | | | | | | | RC6 power state requires a logical render context in place for saving render context. Signed-off-by: Zou Nan hai <nanhai.zou@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
| * drm/i915 invalidate indirect state pointers at end of ring execZou Nan hai2010-08-09
| | | | | | | | | | | | | | | | This is required by the spec, and without this some 3D programs will hang after resume from RC6 we enable that. Signed-off-by: Zou Nan hai <nanhai.zou@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
| * drm/i915: Wake-up wait_request() from elapsed hang-check (v2)Chris Wilson2010-08-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If our watchdog fires and we see that the GPU is idle, but that we are still waiting on an interrupt, forcibly wake-up the waiter. i915_do_wait_request() should not be racy, yet there are persistent reports that 945GM hangs whilst the GPU is idle. This implies that the hardware is not quite as coherent as the documentation claims - a write followed by a flush is supposed to be coherent in main memory before the flush is retired and the irq is emitted. This seems to be a sensible and elegant guard to force the wait to timeout. v2: Daniel Vetter pointed out that a warning would be useful to explain why the machine appeared to stall. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Eric Anholt <eric@anholt.net>
| * drm/i915: Apply i830 errata for cursor alignmentChris Wilson2010-08-09
| | | | | | | | | | | | | | | | i830 requires 32bpp cursors to be aligned to 16KB, so we have to expose the alignment parameter to i915_gem_attach_phys_object(). Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Eric Anholt <eric@anholt.net>
| * drm/i915: Only update i845/i865 CURBASE when disabled (v2)Chris Wilson2010-08-09
| | | | | | | | | | | | | | | | | | | | | | | | | | The i845 and i865 have a peculiarlity in that CURBASE is not the trigger for the vsync update of the cursor registers but instead the modification of that register is prohibited whilst the cursor is enabled. Reorder the write sequence for CURPOS, CURCNTR and CURBASE on i845 to i865 to match. v2: Remove the checks for i845/i865 from within i9xx_cursor_update() Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Eric Anholt <eric@anholt.net>
| * drm/i915: FBC is updated within set_base() so remove second call in mode_set()Chris Wilson2010-08-09
| | | | | | | | | | | | | | | | | | The FBC is dependent upon a few details of the framebuffer so it is required to be updated within set_base(), so remove the redundant call from mode_set(). Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Eric Anholt <eric@anholt.net>
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