spinlock_t should always be used.
LD drivers/gpu/drm/i915/built-in.o
CHECK drivers/gpu/drm/i915/i915_drv.c
CC [M] drivers/gpu/drm/i915/i915_drv.o
CHECK drivers/gpu/drm/i915/i915_dma.c
CC [M] drivers/gpu/drm/i915/i915_dma.o
CHECK drivers/gpu/drm/i915/i915_irq.c
CC [M] drivers/gpu/drm/i915/i915_irq.o
CHECK drivers/gpu/drm/i915/i915_debugfs.c
drivers/gpu/drm/i915/i915_debugfs.c:558:31: warning: dereference of noderef expression
drivers/gpu/drm/i915/i915_debugfs.c:558:39: warning: dereference of noderef expression
drivers/gpu/drm/i915/i915_debugfs.c:558:51: warning: dereference of noderef expression
drivers/gpu/drm/i915/i915_debugfs.c:558:63: warning: dereference of noderef expression
CC [M] drivers/gpu/drm/i915/i915_debugfs.o
CHECK drivers/gpu/drm/i915/i915_suspend.c
CC [M] drivers/gpu/drm/i915/i915_suspend.o
CHECK drivers/gpu/drm/i915/i915_gem.c
drivers/gpu/drm/i915/i915_gem.c:3703:14: warning: incorrect type in assignment (different base types)
drivers/gpu/drm/i915/i915_gem.c:3703:14: expected unsigned int [unsigned] [usertype] mask
drivers/gpu/drm/i915/i915_gem.c:3703:14: got restricted gfp_t
drivers/gpu/drm/i915/i915_gem.c:3706:22: warning: invalid assignment: &=
drivers/gpu/drm/i915/i915_gem.c:3706:22: left side has type unsigned int
drivers/gpu/drm/i915/i915_gem.c:3706:22: right side has type restricted gfp_t
drivers/gpu/drm/i915/i915_gem.c:3707:22: warning: invalid assignment: |=
drivers/gpu/drm/i915/i915_gem.c:3707:22: left side has type unsigned int
drivers/gpu/drm/i915/i915_gem.c:3707:22: right side has type restricted gfp_t
drivers/gpu/drm/i915/i915_gem.c:3711:39: warning: incorrect type in argument 2 (different base types)
drivers/gpu/drm/i915/i915_gem.c:3711:39: expected restricted gfp_t [usertype] mask
drivers/gpu/drm/i915/i915_gem.c:3711:39: got unsigned int [unsigned] [usertype] mask
CC [M] drivers/gpu/drm/i915/i915_gem.o
CHECK drivers/gpu/drm/i915/i915_gem_context.c
CC [M] drivers/gpu/drm/i915/i915_gem_context.o
CHECK drivers/gpu/drm/i915/i915_gem_debug.c
CC [M] drivers/gpu/drm/i915/i915_gem_debug.o
CHECK drivers/gpu/drm/i915/i915_gem_evict.c
CC [M] drivers/gpu/drm/i915/i915_gem_evict.o
CHECK drivers/gpu/drm/i915/i915_gem_execbuffer.c
CC [M] drivers/gpu/drm/i915/i915_gem_execbuffer.o
CHECK drivers/gpu/drm/i915/i915_gem_gtt.c
CC [M] drivers/gpu/drm/i915/i915_gem_gtt.o
CHECK drivers/gpu/drm/i915/i915_gem_stolen.c
CC [M] drivers/gpu/drm/i915/i915_gem_stolen.o
CHECK drivers/gpu/drm/i915/i915_gem_tiling.c
CC [M] drivers/gpu/drm/i915/i915_gem_tiling.o
CHECK drivers/gpu/drm/i915/i915_sysfs.c
CC [M] drivers/gpu/drm/i915/i915_sysfs.o
CHECK drivers/gpu/drm/i915/i915_trace_points.c
CC [M] drivers/gpu/drm/i915/i915_trace_points.o
CHECK drivers/gpu/drm/i915/intel_display.c
drivers/gpu/drm/i915/intel_display.c:1736:9: warning: mixing different enum types
drivers/gpu/drm/i915/intel_display.c:1736:9: int enum transcoder versus
drivers/gpu/drm/i915/intel_display.c:1736:9: int enum pipe
drivers/gpu/drm/i915/intel_display.c:3659:48: warning: mixing different enum types
drivers/gpu/drm/i915/intel_display.c:3659:48: int enum pipe versus
drivers/gpu/drm/i915/intel_display.c:3659:48: int enum transcoder
CC [M] drivers/gpu/drm/i915/intel_display.o
CHECK drivers/gpu/drm/i915/intel_crt.c
CC [M] drivers/gpu/drm/i915/intel_crt.o
CHECK drivers/gpu/drm/i915/intel_lvds.c
CC [M] drivers/gpu/drm/i915/intel_lvds.o
CHECK drivers/gpu/drm/i915/intel_bios.c
drivers/gpu/drm/i915/intel_bios.c:706:60: warning: incorrect type in initializer (different address spaces)
drivers/gpu/drm/i915/intel_bios.c:706:60: expected struct vbt_header *vbt
drivers/gpu/drm/i915/intel_bios.c:706:60: got void [noderef] <asn:2>*vbt
drivers/gpu/drm/i915/intel_bios.c:726:42: warning: incorrect type in argument 1 (different address spaces)
drivers/gpu/drm/i915/intel_bios.c:726:42: expected void const *<noident>
drivers/gpu/drm/i915/intel_bios.c:726:42: got unsigned char [noderef] [usertype] <asn:2>*
drivers/gpu/drm/i915/intel_bios.c:727:40: warning: cast removes address space of expression
drivers/gpu/drm/i915/intel_bios.c:738:24: warning: cast removes address space of expression
CC [M] drivers/gpu/drm/i915/intel_bios.o
CHECK drivers/gpu/drm/i915/intel_ddi.c
drivers/gpu/drm/i915/intel_ddi.c:87:6: warning: symbol 'intel_prepare_ddi_buffers' was not declared. Should it be static?
drivers/gpu/drm/i915/intel_ddi.c:1036:34: warning: mixing different enum types
drivers/gpu/drm/i915/intel_ddi.c:1036:34: int enum pipe versus
drivers/gpu/drm/i915/intel_ddi.c:1036:34: int enum transcoder
CC [M] drivers/gpu/drm/i915/intel_ddi.o
drivers/gpu/drm/i915/intel_ddi.c: In function ‘intel_ddi_setup_hw_pll_state’:
drivers/gpu/drm/i915/intel_ddi.c:1129:2: warning: ‘port’ may be used uninitialized in this function [-Wmaybe-uninitialized]
drivers/gpu/drm/i915/intel_ddi.c:1111:12: note: ‘port’ was declared here
CHECK drivers/gpu/drm/i915/intel_dp.c
CC [M] drivers/gpu/drm/i915/intel_dp.o
CHECK drivers/gpu/drm/i915/intel_hdmi.c
CC [M] drivers/gpu/drm/i915/intel_hdmi.o
CHECK drivers/gpu/drm/i915/intel_sdvo.c
CC [M] drivers/gpu/drm/i915/intel_sdvo.o
CHECK drivers/gpu/drm/i915/intel_modes.c
CC [M] drivers/gpu/drm/i915/intel_modes.o
CHECK drivers/gpu/drm/i915/intel_panel.c
CC [M] drivers/gpu/drm/i915/intel_panel.o
CHECK drivers/gpu/drm/i915/intel_pm.c
drivers/gpu/drm/i915/intel_pm.c:2173:1: warning: symbol 'mchdev_lock' was not declared. Should it be static?
CC [M] drivers/gpu/drm/i915/intel_pm.o
CHECK drivers/gpu/drm/i915/intel_i2c.c
CC [M] drivers/gpu/drm/i915/intel_i2c.o
CHECK drivers/gpu/drm/i915/intel_fb.c
CC [M] drivers/gpu/drm/i915/intel_fb.o
CHECK drivers/gpu/drm/i915/intel_tv.c
CC [M] drivers/gpu/drm/i915/intel_tv.o
CHECK drivers/gpu/drm/i915/intel_dvo.c
CC [M] drivers/gpu/drm/i915/intel_dvo.o
CHECK drivers/gpu/drm/i915/intel_ringbuffer.c
CC [M] drivers/gpu/drm/i915/intel_ringbuffer.o
CHECK drivers/gpu/drm/i915/intel_overlay.c
CC [M] drivers/gpu/drm/i915/intel_overlay.o
CHECK drivers/gpu/drm/i915/intel_sprite.c
CC [M] drivers/gpu/drm/i915/intel_sprite.o
CHECK drivers/gpu/drm/i915/intel_opregion.c
CC [M] drivers/gpu/drm/i915/intel_opregion.o
CHECK drivers/gpu/drm/i915/dvo_ch7xxx.c
CC [M] drivers/gpu/drm/i915/dvo_ch7xxx.o
CHECK drivers/gpu/drm/i915/dvo_ch7017.c
CC [M] drivers/gpu/drm/i915/dvo_ch7017.o
CHECK drivers/gpu/drm/i915/dvo_ivch.c
CC [M] drivers/gpu/drm/i915/dvo_ivch.o
CHECK drivers/gpu/drm/i915/dvo_tfp410.c
CC [M] drivers/gpu/drm/i915/dvo_tfp410.o
CHECK drivers/gpu/drm/i915/dvo_sil164.c
CC [M] drivers/gpu/drm/i915/dvo_sil164.o
CHECK drivers/gpu/drm/i915/dvo_ns2501.c
CC [M] drivers/gpu/drm/i915/dvo_ns2501.o
CHECK drivers/gpu/drm/i915/i915_gem_dmabuf.c
CC [M] drivers/gpu/drm/i915/i915_gem_dmabuf.o
CHECK drivers/gpu/drm/i915/i915_ioc32.c
CC [M] drivers/gpu/drm/i915/i915_ioc32.o
CHECK drivers/gpu/drm/i915/intel_acpi.c
CC [M] drivers/gpu/drm/i915/intel_acpi.o
LD [M] drivers/gpu/drm/i915/i915.o
Building modules, stage 2.
MODPOST 1 modules
CC drivers/gpu/drm/i915/i915.mod.o
LD [M] drivers/gpu/drm/i915/i915.ko
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Reported-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Use drm_dp_bw_code_to_link_rate insead. It's the same thing, but
supports DP_LINK_BW_5_4 and is also used by the other drivers.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Do an early return in case we don't have DDI instead of having the
whole function inside an "if" statement.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
And use it whenever we call code that uses the DDIs. We already have
intel_ddi.c and prefix every function with intel_ddi_something instead of
haswell_something, so I think replacing the checks with HAS_DDI makes more
sense. Just a cosmetical change, yes I know, but I have this OCD...
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Since we drop dev->struct_mutex when going through the slowpath, the
object might have been moved out of the cpu domain. Hence we need to
clflush the entire object to ensure that after the ioctl returns,
everything is coherent again (interwoven writes are ill-defined
anyway).
But we only need to do this if we start in the cpu domain and the
object requires flushing for coherency. So don't do the flushing if
the object is coherent anyway or if we've done in-line clfushing
already.
v2: i915_gem_clflush_object already checks whether the object is
coherent and if so, drops the flushing. Hence we don't need to check
that ourselves, simplifying the condition.
v3: Reorder the checks for better clarity (and adjust the comment
accordingly), suggested by Chris Wilson.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The shmem paths for pwrite/pread used a clever trick to hold onto a
single page when dropping the big dev->struct_mutex for the slowpath.
But this ran the risk of reinstating (or not completely purging) the
backing storage when dropping purgeable objects.
Hence the code needed to keep track of whether it ever dropped the
lock, and if it did, manually check whether it needs to re-purge the
backing storage. But thanks to the pages pin count introduced in
commit a5570178c0
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue Sep 4 21:02:54 2012 +0100
drm/i915: Pin backing pages whilst exporting through a dmabuf vmap
which allowed us to pin the backing storage and remove that page
reference trick from shmem_pwrite/read in
commit f60d7f0c1d
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue Sep 4 21:02:56 2012 +0100
drm/i915: Pin backing pages for pread
and
commit 755d22184f
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue Sep 4 21:02:55 2012 +0100
drm/i915: Pin backing pages for pwrite
we can now abolish this check. The slowpath cleanup completely
disappears from pread, and for pwrite we're only left with the domain
fixup in case someone moved the object out of the cpu domain from
under us. A follow-on patch will optimize that a notch more.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Only two things needed adjustment:
- pipe select for PCH_CPT
- There's no dithering bit on ilk+ in the lvds ctl reg
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
A few things needed to change:
- HAS_PCH_SPLIT since ilk+ is not yet converted to this.
- s/LVDS/intel_lvds->reg/ to prep for ilk conversion
- replace the clock.p2 == 7 check with a is_dual_link check
- s/adjusted_mode/intel_lvds->fixed_mode
v2: Rebase on top of Jani Nikula's panel rework. I'm wondering whether
we shouldn't add an attached_panel pointer to intel_encoder, to
replace the encoder private ->attached_connector pointers, since
that's essentially what we need.
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
To ditch at least some of the PCH_SPLIT ? PCH_LVDS : LVDS code ...
v2: Rebase on top of Jani Nikula's panel rework.
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Yeah, all users (both the clock selection special cases and the lvds
pin pair stuff) are still in common code, but this will change.
v2: Rebase on top of Jani Nikula's panel rework.
v3: Incorporate review from Paulo Zanoni:
- s/__is_dual_link_lvds/compute_is_dual_link_lvds
- kill dev_priv->lvds_val
- drop spurious whitespace change
v4: Add a debug printk to display the dual-link status, as suggested
by Paulo Zanoni in review.
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> (v3)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The iommu will be enabled when fimd sub driver is probed and
will be disabled when removed.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Changelog v4:
- fix condition to drm_iommu_detach_device funtion.
Changelog v3:
- add dma_parms->max_segment_size setting of drm_device->dev.
- use devm_kzalloc instead of kzalloc.
Changelog v2:
- fix iommu attach condition.
. check archdata.dma_ops of drm device instead of
subdrv device's one.
- code clean to exynos_drm_iommu.c file.
. remove '#ifdef CONFIG_ARM_DMA_USE_IOMMU' from exynos_drm_iommu.c
and add it to driver/gpu/drm/exynos/Kconfig.
Changelog v1:
This patch adds iommu support for exynos drm framework with dma mapping
api. In this patch, we used dma mapping api to allocate physical memory
and maps it with iommu table and removed some existing codes and added
new some codes for iommu support.
GEM allocation requires one device object to use dma mapping api so
this patch uses one iommu mapping for all sub drivers. In other words,
all sub drivers have same iommu mapping.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Currently the only users of drm_vblank_off() are i915 and gma500,
neither of which holds the event_lock when calling this function.
Fix this by holding the event_lock while traversing the list.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Currently the exynos driver calls drm_vblank_off() with the event_lock
held, while drm_vblank_off() will lock vbl_time and vblank_time_lock.
This lock dependency chain conflicts with the one in drm_handle_vblank()
where we first lock vblank_time_lock and then the event_lock.
Fix this by removing the above drm_vblank_off() calls which are in fact
never executed: drm_dev->vblank_disable_allowed is only ever non-zero
during driver init, until it's set in {fimd,vidi}_subdrv_probe. Both the
driver init and open code is protected by drm_global_mutex, so the
earliest page flip ioctl can happen only after vblank_disable_allowed is
set to 1. Thus {fimd,vidi}_finish_pageflip - with pending flip events -
will always get called with vblank_disable_allowed being 1.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
It's guaranteed that for each event on pageflip_event_list we have
called drm_vblank_get() - see exynos_drm_crtc_page_flip() - so checking
for this is redundant.
Also we need to call drm_vblank_put() for each event on the list, not
only once, otherwise we'd leak vblank references if there are multiple
events on the list.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Check overlay_ops is not NULL as checked in the previous 'if' condition.
Fixes the following smatch error:
drivers/gpu/drm/exynos/exynos_drm_encoder.c:509 exynos_drm_encoder_plane_disable()
error: we previously assumed 'overlay_ops' could be null (see line 499)
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Fixes the following sparse warnings:
drivers/gpu/drm/exynos/exynos_drm_fimd.c:65:25: warning:
symbol 'exynos4_fimd_driver_data' was not declared. Should it be static?
drivers/gpu/drm/exynos/exynos_drm_fimd.c:69:25: warning:
symbol 'exynos5_fimd_driver_data' was not declared. Should it be static?
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Chagelog v2:
Move encoder's dpms updating into exynos_drm_encoder_commit
function because when crtc's dpms is updated, encoder's dpms
is updated also. This would induce the issue that encoder
isn't disabled after crtc is disabled.
Changelog v1:
This patch fixes a issue that overlay data aren't applied
to real hardware when dpms off goes to on after setcrtc
was requested like below,
dpms off -> setcrtc -> dpms off -> dpms on
For this, it makes encoder's dpms to be updated when
setcrtc is requested.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
plane->fb will be set to new fb after update_plane callback is called
by drm_mode_set_plane()
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
With iommu, buffer->dma_addr has device addres so this patch
fixes for physical address to be set to fix.smem_start always.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Just a prep patch to make this a property of intel_lvds. Makes more
sense, removes clutter from intel_display.c and eventually I want to
move all the encoder special cases wrt clock handling to encoders
anyway.
v2: Add an intel_ prefixe to is_dual_link_lvds since it's non-static
now.
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
... with is_dual_link_lvds introduced in
commit b03543857f
Author: Takashi Iwai <tiwai@suse.de>
Date: Tue Mar 20 13:07:05 2012 +0100
drm/i915: Check VBIOS value for determining LVDS dual channel mode, too
All these checks predate this commit and have simply been overlooked.
Since we don't support switching between single-link and dual-link
modes anyway, this different checks could at best only get in the way
of refactorings, and in the worst case cause inconsistencies.
v2: Update the comment, we now have a solid way to figure out whether
we need dual-link lvds or not (falling back to vbt values as a last
resort). We still don't know how to switch between dual-link and
single link so leave that part intact. I'm not sure though whether
switching between these two modes makes any sense - we always drive
the panel at its fixed mode (with a fixed bpc) anyway ...
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Currently we have two encoder specific bits in the common mode_set
functions:
- lvds pin pair enabling
- dp m/n setting and computation
Now the lvds stuff needs to happen before the pll is enabled. Since
that is done in the crtc_mode_set functions, we need to add a new
callback to be able to move them to the encoder code (where they
belong). The dp m/n stuff is a giant mess anyway (since it also
confuses itself with the fdi link m/n handling), so that needs to be
handled separately.
I think that we can move the pll enabling down quite a bit, which
might allow us to eventually merge encoder->pre_enable with this new
pre_pll_enable callback. But for now this will allow us to clean
things up a bit.
Note that vlv doesn't support lvds, hence we don't need to change
anything in there.
v2: Fixup commit message, both suggested from Paulo Zanoni.
- dp m/n doesn't need to happen before pll enabling
- lvds doesn't exist on vlv, hence no changes required in the vlv pll
function.
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
As we do not have any domains occupying the high bits, there is no point
in always printing the leading 00.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
As per Chris Wilson's suggestion make
i915_gem_execbuffer_wait_for_flips() go away.
This was used to stall the GPU ring while there are pending
page flips involving the relevant BO. Ie. while the BO is still
being scanned out by the display controller.
The recommended alternative is to use the page flip events to
wait for the page flips to fully complete before reusing the BO
of the old front buffer. Or use more buffers.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Kristian Høgsberg <krh@bitplanet.net>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: don't remove obj->pending_flips, still required due to
reorder patches.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Somehow a chunk of unused register defines ended up in the middle of
the PLL defines. They go back to the original kms merging.
The only used #define is SR01, move it to the register name together
with the other legacy vga stuff.
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
i915_gem_handle_seqno_wrap() will zero all sync_seqnos but as the
wrap can happen inside ring->sync_to(), pre wrap seqno was
carried over and overwrote the zeroed sync_seqno.
When wrap is handled, all outstanding requests will be retired and
objects moved to inactive queue, causing their last_read_seqno to be zero.
Use this to update the sync_seqno correctly.
RING_SYNC registers after wrap will contain pre wrap values which
are >= seqno. So injecting the semaphore wait into ring completes
immediately.
Original idea for using last_read_seqno from Chris Wilson.
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Replace the wait for the ring to be clear with the more common wait for
the ring to be idle. The principle advantage is one less exported
intel_ring_wait function, and the removal of a hardcoded value.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
As we now always preallocate the seqno before writing to the ring, we
can trivially test if we have any pending activity on the ring by
inspecting the olr. This makes it then possible to flush operations that
are not normally associated with a request, like power-management.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Based on the work by Mika Kuoppala, we realised that we need to handle
seqno wraparound prior to committing our changes to the ring. The most
obvious point then is to grab the seqno inside intel_ring_begin(), and
then to reuse that seqno for all ring operations until the next request.
As intel_ring_begin() can fail, the callers must already be prepared to
handle such failure and so we can safely add further checks.
This patch looks like it should be split up into the interface
changes and the tweaks to move seqno wrapping from the execbuffer into
the core seqno increment. However, I found no easy way to break it into
incremental steps without introducing further broken behaviour.
v2: Mika found a silly mistake and a subtle error in the existing code;
inside i915_gem_retire_requests() we were resetting the sync_seqno of
the target ring based on the seqno from this ring - which are only
related by the order of their allocation, not retirement. Hence we were
applying the optimisation that the rings were synchronised too early,
fortunately the only real casualty there is the handling of seqno
wrapping.
v3: Do not forget to reset the sync_seqno upon module reinitialisation,
ala resume.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=863861
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> [v2]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
In commit 69c2fc8913
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri Jul 20 12:41:03 2012 +0100
drm/i915: Remove the per-ring write list
the explicit flush was removed from i915_ring_idle(). However, we
continued to wait upon the next seqno which now did not correspond to
any request (except for the unusual condition of a failure to queue a
request after execbuffer) and so would wait indefinitely.
This has an important side-effect that i915_gpu_idle() does not cause
the seqno to be incremented. This is vital if we are to be able to idle
the GPU to handle seqno wraparound, as in subsequent patches.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Dereference dev_priv only after we know it is valid.
Found with smatch.
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Some devices may respond very slowly and only flag that the reply is
pending within the first 15us response window. Be kind to such devices
and wait a further 15ms, before checking for the pending reply. This
moves the existing special case delay of 30ms down from the detection
routine into the common path and pretends to explain it...
v2: Simplify the loop constructs as suggested by Jani Nikula.
References: https://bugs.freedesktop.org/show_bug.cgi?id=36997
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We currently set "0" as the VIC value of the AVI InfoFrames. According
to the specs this should be fine and work for every mode, so to my
point of view we can't consider the current behavior as a bug. The
problem is that we recently received a bug report (Kernel bug #50371)
from a user that has an AV receiver that gives a black screen for any
mode with VIC set to 0.
So in order to make at least some modes work for him, this patch sets
the correct VIC number when sending AVI InfoFrames.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=50371
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel writes:
Besides the big item of lifting the "preliminary hw support" tag from the
Haswell code, just small bits&pieces all over:
- Leftover Haswell patches and some fixes from Paulo
- LyncPoint PCH support (for hsw)
- OOM handling improvements from Chris Wilson
- connector property and send_vblank_event refactorings from Rob Clark
- random pile of small fixes
Note that the send_vblank refactorings will cause some locking WARNs to
show up. Imre has fixed that up, but since all the driver changes outside
of the drm core have been for exonys, those four patches are merged
through the exonys-next tree.
Meh, I've forgotten to cherry-pick an important fix from Ben for a
regression in the 3.8 gen6+ gtt code. New pull request below. While I'm at
it, the hdmi VIC patch for the drm edid code is still in my queue, I'll
send you that in the next 3.8-fixes pull.
* 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel: (33 commits)
drm/i915: Fix pte updates in ggtt clear range
drm/i915: promote Haswell to full support
drm/i915: Report the origin of the LVDS fixed panel mode
drm/i915: LVDS fallback to fixed-mode if EDID not present
drm/i915/sdvo: kfree the intel_sdvo_connector, not drm_connector, on destroy
drm/i915: drm_connector_property -> drm_object_property
drm/i915: use drm_send_vblank_event() helper
drm/i915: Use pci_resource functions for BARs.
drm/i915: Borrow our struct_mutex for the direct reclaim
drm/i915: Defer assignment of obj->gtt_space until after all possible mallocs
drm/i915: Apply the IBX transcoder A w/a for HDMI to SDVO as well
drm/i915: implement WaMbcDriverBootEnable on Haswell
drm/i915: fix intel_ddi_get_cdclk_freq for ULT machines
drm/i915: make the panel fitter work on pipes B and C on Haswell
drm/i915: make the panel fitter work on pipes B and C on IVB
drm/i915: don't intel_crt_init if DDI A has 4 lanes
drm/i915: make DP work on LPT-LP machines
drm/i915: fix false positive "Unclaimed write" messages
drm/i915: use cpu/pch transcoder on intel_enable_pipe
drm/i915: don't limit Haswell CRT encoder to pipe A
...
This bug was introduced by me:
commit e76e9aebcd
Author: Ben Widawsky <ben@bwidawsk.net>
Date: Sun Nov 4 09:21:27 2012 -0800
drm/i915: Stop using AGP layer for GEN6+
The existing code uses memset_io which follows memset semantics in only
guaranteeing a write of individual bytes. Since a PTE entry is 4 bytes,
this can only be correct if the scratch page address is 0.
This caused unsightly errors when we clear the range at load time,
though I'm not really sure what the heck is referencing that memory
anyway. I caught this is because I believe we have some other bug where
the display is doing reads of memory we feel should be cleared (or we
are relying on scratch pages to be a specific value).
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Fixed build warning as below:
drivers/gpu/drm/drm_pci.c: In function 'drm_pcie_get_speed_cap_mask':
drivers/gpu/drm/drm_pci.c:496:9: warning: 'lnkcap' may be used uninitialized in this function [-Wuninitialized]
drivers/gpu/drm/drm_pci.c:497:10: warning: 'lnkcap2' may be used uninitialized in this function [-Wuninitialized]
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
On 3.7-rc6, add missing newline to to prevent the following kernel log
line getting appended to the current one after switching the integrated
GPU and suspending the discrete GPU.
Signed-off-by: Daniel J Blueman <daniel@quora.org>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
