Commit Graph

340 Commits

Author SHA1 Message Date
Alex Deucher 65fcf668ee drm/radeon: add query for number of active CUs
Query to find out how many compute units on a GPU.
Useful for OpenCL usermode drivers.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-06-09 22:06:55 -04:00
Christian König 5e167cdbf6 drm/radeon: use lower_32_bits where appropriate
Replace occurrences of "v & 0xffffffff" with lower_32_bits(v)
when it's next to an upper_32_bits(v). Also remove unnecessary
"upper_32_bits(v) & 0xffffffff" code snippets.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-06-09 22:06:48 -04:00
Dave Airlie 8d4ad9d4bb Merge commit '9e9a928eed8796a0a1aaed7e0b676db86ba84594' into drm-next
Merge drm-fixes into drm-next.

Both i915 and radeon need this done for later patches.

Conflicts:
	drivers/gpu/drm/drm_crtc_helper.c
	drivers/gpu/drm/i915/i915_drv.h
	drivers/gpu/drm/i915/i915_gem.c
	drivers/gpu/drm/i915/i915_gem_execbuffer.c
	drivers/gpu/drm/i915/i915_gem_gtt.c
2014-06-05 20:28:59 +10:00
Christian König 1a0e791841 drm/radeon: separate vblank and pflip crtc handling
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-06-02 10:25:12 -04:00
Maarten Lankhorst aa4c8b36e5 drm/radeon: drm/radeon: add missing radeon_semaphore_free to error path
It would appear this bug has been copy/pasted many times without being noticed.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2014-05-06 12:18:41 +02:00
Christian König f5d636d2a7 drm/radeon: use pflip irq on R600+ v2
Testing the update pending bit directly after issuing an
update is nonsense cause depending on the pixel clock the
CRTC needs a bit of time to execute the flip even when we
are in the VBLANK period.

This is just a non invasive patch to solve the problem at
hand, a more complete and cleaner solution should follow
in the next merge window.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=76564

v2: fix source IDs for CRTC2-6

Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
2014-05-01 12:27:42 +02:00
Dave Airlie bcc298bc92 Linux 3.14-rc7
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Merge tag 'v3.14-rc7' into drm-next

Linux 3.14-rc7

Backmerge to help out Intel guys.
2014-03-18 19:12:31 +10:00
Alex Deucher bc6a62955f drm/radeon: resume old pm late
Moving the pm resume up in the init order to fix
dpm seems to have regressed somes cases with the old
pm code.  Move it back to late resume.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-03-06 16:46:56 -05:00
Christian König 2d2fe3f9b6 drm/radeon: drop radeon_ring_force_activity
The reason for the false positives was fixed quite some time ago and since
most engines can still execute NOPs while being locked up it leads to false
negatives.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-18 17:50:00 +01:00
Christian König ff212f25fe drm/radeon: drop drivers copy of the rptr
In all cases where it really matters we are using the read functions anyway.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-18 17:49:19 +01:00
Alex Deucher 858a41c853 drm/radeon: fix UVD IRQ support on 7xx
Otherwise decoding isn't really useable.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-02-06 12:22:45 -05:00
Alex Deucher 50efa51afd drm/radeon: clean up active vram sizing
If we are not able to properly initialize one of the gpu
engines for buffer paging, we limit vram to the size of
the cpu visible aperture.  We generally either use the gfx
or dma engine to do this.  Clean up the size limiting code
to only adjust the size based on what ring is selected
for buffer paging rather than making assumptions about which
engine is selected for paging.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2014-01-29 15:23:05 -05:00
Alex Deucher b9ace36f13 drm/radeon: skip async dma init on r6xx
The hw is buggy and it's not currently used, but it's
currently still initialized by the driver.  Skip the init.
Skipping init also seems to improve stability with dpm on
some r6xx asics.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=66963

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2014-01-29 15:23:04 -05:00
Alex Deucher d45b964a22 drm/radeon: set the full cache bit for fences on r7xx+
Needed to properly flush the read caches for fences.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-01-20 18:20:56 -05:00
Alex Deucher de9ae7447a drm/radeon: implement pci config reset for r6xx/7xx (v3)
pci config reset is a low level reset that resets
the entire chip from the bus interface.  It can
be more reliable if soft reset fails.

There's not much information still available on
r6xx, so r6xx is based on guess-work.

v2: put behind module parameter
v3: add IGP check

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-01-08 18:42:22 -05:00
Alex Deucher ea31bf697d drm/radeon: remove generic rptr/wptr functions (v2)
Fill in asic family specific versions rather than
using the generic version.  This lets us handle asic
specific differences more easily.  In this case, we
disable sw swapping of the rtpr writeback value on
r6xx+ since the hw does it for us.  Fixes bogus
rptr readback on BE systems.

v2: remove missed cpu_to_le32(), add comments

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-12-24 18:01:10 -05:00
Alex Deucher 6c7bccea39 drm/radeon/pm: move pm handling into the asic specific code
We need more control over the ordering of dpm init with
respect to the rest of the asic.  Specifically, the SMC
has to be initialized before the rlc and cg/pg.  The pm
code currently initializes late in the driver, but we need
it to happen much earlier so move pm handling into the asic
specific callbacks.

This makes dpm more reliable and makes clockgating work
properly on CIK parts and should help on SI parts as well.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-12-24 17:57:06 -05:00
Alex Deucher 01ac8794a7 drm/radeon: re-order firmware loading in preparation for dpm rework
We need to reorder the driver init sequence to better accomodate
dpm which needs to be loaded earlier in the init sequence.  Move
fw init up so that it's available for dpm init.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-12-24 17:54:40 -05:00
Christian König 1654b817d8 drm/radeon: allow semaphore emission to fail
To workaround bugs and/or certain limits it's sometimes
useful to fall back to waiting on fences.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-11-15 15:56:09 -05:00
Dave Airlie 91915260ea Merge tag 'drm-intel-fixes-2013-11-07' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
Bit a bit -fixes pull request in the merge window than usual dua to two
feauture-y things:
- Display CRCs are now enabled on all platforms, including the odd DP case
  on gm45/vlv. Since this is a testing-only feature it should ever hurt,
  but I figured it'll help with regression-testing -fixes. So I left it
  in and didn't postpone it to 3.14.
- Display power well refactoring from Imre. Would have caused major pain
  conflict with the bdw stage 1 patches if I'd postpone this to -next.
  It's only an relatively small interface rework, so shouldn't cause pain.
  It's also been in my tree since almost 3 weeks already.

That accounts for about two thirds of the pull, otherwise just bugfixes:
- vlv backlight fix from Jesse/Jani
- vlv vblank timestamp fix from Jesse
- improved edp detection through vbt from Ville (fixes a vlv issue)
- eDP vdd fix from Paulo
- fixes for dvo lvds on i830M
- a few smaller things all over

Note: This contains a backmerge of v3.12. Since the -internal branch
always applied on top of -nightly I need that unified base to merge bdw
patches. So you'll get a conflict with radeon connector props when pulling
this (and nouveau/master will also conflict a bit when Ben doesn't
rebase). The backmerge itself only had conflicts in drm/i915.

There's also a tiny conflict between Jani's backlight fix and your sysfs
lifetime fix in drm-next.

* tag 'drm-intel-fixes-2013-11-07' of git://people.freedesktop.org/~danvet/drm-intel: (940 commits)
  drm/i915/vlv: use per-pipe backlight controls v2
  drm/i915: make backlight functions take a connector
  drm/i915: move opregion asle request handling to a work queue
  drm/i915/vlv: use PIPE_START_VBLANK interrupts on VLV
  drm/i915: Make intel_dp_is_edp() less specific
  drm/i915: Give names to the VBT child device type bits
  drm/i915/vlv: enable HDA display audio for Valleyview2
  drm/i915/dvo: call ->mode_set callback only when the port is running
  drm/i915: avoid unclaimed registers when capturing the error state
  drm/i915: Enable DP port CRC for the "auto" source on g4x/vlv
  drm/i915: scramble reset support for DP port CRC on vlv
  drm/i915: scramble reset support for DP port CRC on g4x
  drm/i916: add "auto" pipe CRC source
  ...

Conflicts:
	MAINTAINERS
	drivers/gpu/drm/i915/intel_panel.c
	drivers/gpu/drm/nouveau/core/subdev/mc/base.c
	drivers/gpu/drm/radeon/atombios_encoders.c
	drivers/gpu/drm/radeon/radeon_connectors.c
2013-11-08 16:34:39 +10:00
Alex Deucher 6214bb7487 drm/radeon: add a connector property for dither
Allows you to enable dither in the display hardware
when the monitor supports lower a lower bpc than the
current framebuffer format.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-11-01 12:43:13 -04:00
Alex Deucher 134b480f4b drm/radeon: Add support for programming the FMT blocks
The FMT blocks control how data is sent from the backend
of the display pipe to to monitor.  Proper set up of the
FMT blocks are required for 30bpp formats.  Additionally,
dithering can be enabled on for better display with 18 and
24bpp displays.  The exception is LVDS/eDP which atom
takes care of in the SelectCRTC_Source table.  For now
just enable truncation until we test dithering more.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-11-01 12:43:12 -04:00
Alex Deucher d83671126d drm/radeon: make missing smc ucode non-fatal (r7xx-SI)
Prevent driver load problems if the smc is missing.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=63011

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Mikko Rapeli <mikko.rapeli@iki.fi>
Cc: stable@vger.kernel.org
2013-10-18 16:16:17 -04:00
Alex Deucher 1b9ba70a49 drm/radeon/r6xx: add a stubbed out set_uvd_clocks callback
Certain r6xx boards use the same power state for both UVD
and other things.  Since we don't support UVD on r6xx boards
at the moment, there was no callback installed for setting
the UVD clocks, however, on systems that use the same power
state, this leads to a NULL pointer dereference.  Fill
in a stubbed out implementation for now to avoid the crash.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=66963

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: "3.11" <stable@vger.kernel.org>
2013-09-11 11:44:32 -04:00
Alex Deucher 0a5b7b0bd9 drm/radeon: add spinlocks for indirect register accesss
This adds spinlocks to protect access to other
indirect register apertures.  These indirect spaces are
used pretty infrequently and we haven't had an reported
problems, but better safe than sorry.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:29 -04:00
Dave Airlie 9c725e5bcd Merge branch 'drm-next-3.12' of git://people.freedesktop.org/~agd5f/linux into drm-next
Alex writes:
This is the radeon drm-next request.  Big changes include:
- support for dpm on CIK parts
- support for ASPM on CIK parts
- support for berlin GPUs
- major ring handling cleanup
- remove the old 3D blit code for bo moves in favor of CP DMA or sDMA
- lots of bug fixes

[airlied: fix up a bunch of conflicts from drm_order removal]

* 'drm-next-3.12' of git://people.freedesktop.org/~agd5f/linux: (898 commits)
  drm/radeon/dpm: make sure dc performance level limits are valid (CI)
  drm/radeon/dpm: make sure dc performance level limits are valid (BTC-SI) (v2)
  drm/radeon: gcc fixes for extended dpm tables
  drm/radeon: gcc fixes for kb/kv dpm
  drm/radeon: gcc fixes for ci dpm
  drm/radeon: gcc fixes for si dpm
  drm/radeon: gcc fixes for ni dpm
  drm/radeon: gcc fixes for trinity dpm
  drm/radeon: gcc fixes for sumo dpm
  drm/radeonn: gcc fixes for rv7xx/eg/btc dpm
  drm/radeon: gcc fixes for rv6xx dpm
  drm/radeon: gcc fixes for radeon_atombios.c
  drm/radeon: enable UVD interrupts on CIK
  drm/radeon: fix init ordering for r600+
  drm/radeon/dpm: only need to reprogram uvd if uvd pg is enabled
  drm/radeon: check the return value of uvd_v1_0_start in uvd_v1_0_init
  drm/radeon: split out radeon_uvd_resume from uvd_v4_2_resume
  radeon kms: fix uninitialised hotplug work usage in r100_irq_process()
  drm/radeon/audio: set up the sads on DCE3.2 asics
  drm/radeon: fix handling of variable sized arrays for router objects
  ...

Conflicts:
	drivers/gpu/drm/i915/i915_dma.c
	drivers/gpu/drm/i915/i915_gem_dmabuf.c
	drivers/gpu/drm/i915/intel_pm.c
	drivers/gpu/drm/radeon/cik.c
	drivers/gpu/drm/radeon/ni.c
	drivers/gpu/drm/radeon/r600.c
2013-09-02 09:31:40 +10:00
Alex Deucher e5903d399a drm/radeon: fix init ordering for r600+
The vram scratch buffer needs to be initialized
before the mc is programmed otherwise we program
0 as the GPU address of the default GPU fault
page.  In most cases we put vram at zero anyway and
reserve a page for the legacy vga buffer so in practice
this shouldn't cause any problems, but better to make
it correct.

Was changed in:
6fab3febf6

Reported-by: FrankR Huang <FrankR.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-08-30 16:31:15 -04:00
Christian König 2483b4ea98 drm/radeon: separate DMA code
Similar to separating the UVD code, just put the DMA
functions into separate files.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:30:42 -04:00
Christian König e409b12862 drm/radeon: separate UVD code v3
Our different hardware blocks are actually completely
separated, so it doesn't make much sense any more to
structure the code by pure chipset generations.

Start restructuring the code by separating our the UVD block.

v2: updated commit message
v3: rebased and restructurized start/stop functions for kv dpm.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:30:42 -04:00
Christian König 2e1e6dad6a drm/radeon: remove special handling for the DMA ring
Now that we have callbacks for [rw]ptr handling we can
remove the special handling for the DMA rings and use
the callbacks instead.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:30:41 -04:00
Christian König 02c9f7fa4e drm/radeon: rework UVD writeback & [rw]ptr handling
The hardware just doesn't support this correctly.
Disable it before we accidentally write anywhere we shouldn't.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:30:40 -04:00
Alex Deucher 5e884f606c drm/radeon: restructure UVD code to handle UVD PG (v2)
When we PG (powergate) UVD, we need to re-initialize it
before we can use it again.

v2: rebase on UVD stop fixes

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:30:34 -04:00
Alex Deucher 4f86296758 drm/radeon/kms: remove r6xx+ blit copy routines
No longer used now that we use the async dma engines or
CP DMA for bo copies.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:29:57 -04:00
Dave Airlie 1dda8d02ac Merge remote-tracking branch 'pfdo/drm-rcar-for-v3.12' into drm-next
Merge the rcar stable branch that is being shared with the arm-soc tree.

Signed-off-by: Dave Airlie <airlied@redhat.com>
* pfdo/drm-rcar-for-v3.12: (220 commits)
  drm/rcar-du: Add FBDEV emulation support
  drm/rcar-du: Add internal LVDS encoder support
  drm/rcar-du: Configure RGB output routing to DPAD0
  drm/rcar-du: Rework output routing support
  drm/rcar-du: Add support for DEFR8 register
  drm/rcar-du: Add support for multiple groups
  drm/rcar-du: Fix buffer pitch alignment for R8A7790 DU
  drm/rcar-du: Add support for the R8A7790 DU
  drm/rcar-du: Move output routing configuration to group
  drm/rcar-du: Remove register definitions for the second channel
  drm/rcar-du: Use dynamic number of CRTCs instead of CRTCs array size
  drm/rcar-du: Introduce CRTCs groups
  drm/rcar-du: Rename rcar_du_plane_(init|register) to rcar_du_planes_*
  drm/rcar-du: Create rcar_du_planes structure
  drm/rcar-du: Rename platform data fields to match what they describe
  drm/rcar-du: Merge LVDS and VGA encoder code
  drm/rcar-du: Split VGA encoder and connector
  drm/rcar-du: Split LVDS encoder and connector
  drm/rcar-du: Clarify comment regarding plane Y source coordinate
  drm/rcar-du: Support per-CRTC clock and IRQ
  ...

Conflicts:
	drivers/gpu/drm/i915/i915_dma.c
	drivers/gpu/drm/i915/intel_pm.c
	drivers/gpu/drm/qxl/qxl_release.c
2013-08-19 09:24:13 +10:00
Alex Deucher 8a53fa23fd drm/radeon: make missing smc ucode non-fatal
The smc ucode is required for dpm (dynamic power
management), but if it's missing just skip dpm setup
and don't disable acceleration.

Should fix:
https://bugs.freedesktop.org/show_bug.cgi?id=67876

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-07 17:37:19 -04:00
Alex Deucher 6fab3febf6 drm/radeon: always program the MC on startup
For r6xx+ asics.  This mirrors the behavior of pre-r6xx
asics.  We need to program the MC even if something
else in startup() fails.  Failure to do so results in
an unusable GPU.

Based on a fix from: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-08-07 17:37:14 -04:00
Christian König 2858c00d28 drm/radeon: fix halting UVD
Removing the clock/power or resetting the VCPU can cause
hangs if that happens in the middle of a register write.

Stall the memory and register bus before putting the VCPU
into reset. Keep it in reset when unloading the module or
suspending.

Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-07 17:37:11 -04:00
Daniel Vetter b72a8925fd drm/radeon: s/drm_order/order_base_2/
Last driver and pretty obviously a major user of this little function.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-07-23 20:14:24 +10:00
Alex Deucher 745a39a9e6 drm/radeon: wait for 3D idle before using CP DMA
Make sure the 3D engine is idle before using CP DMA for
bo copies.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Marek Olšák <maraeo@gmail.com>
2013-07-22 15:57:11 -04:00
Christian König c9a6ca4abd drm/radeon: fix UVD fence emit
Currently doesn't matter cause we allocate the fence in the
lower 265MB anyway.

Reported-by: Frank Huang <FrankR.Huang@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-07-14 10:11:30 -04:00
Jerome Glisse 0a16893397 drm/radeon: use radeon device for request firmware
Avoid creating temporary platform device that will lead to issue
when several radeon gpu are in same computer. Instead directly use
the radeon device for requesting firmware.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-14 10:11:27 -04:00
Alex Deucher 072b5acc7e drm/radeon: implement bo copy callback using CP DMA (v2)
Lighter weight than using the 3D engine.

v2: fix ring count

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-14 10:11:26 -04:00
Alex Deucher dc50ba7f9a drm/radeon/kms: add dpm support for evergreen (v4)
This adds dpm support for evergreen asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching (requires additional acpi support)

Set radeon.dpm=1 to enable.

v2: reduce stack usage, rename ulv struct
v3: fix thermal interrupt check notices by Jerome
v4: fix state enable

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 19:15:22 -04:00
Alex Deucher 66229b2005 drm/radeon/kms: add dpm support for rv7xx (v4)
This adds dpm support for rv7xx asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching

Set radeon.dpm=1 to enable.

v2: reduce stack usage
v3: fix 64 bit div
v4: fix state enable

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 19:14:59 -04:00
Alex Deucher 4a6369e993 drm/radeon/kms: add dpm support for rv6xx (v3)
This adds dpm support for rv6xx asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching

Set radeon.dpm=1 to enable.

v2: remove duplicate line
v3: fix thermal interrupt check noticed by Jerome

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2013-06-27 10:50:08 -04:00
Alex Deucher 2948f5e6c2 drm/radeon: properly set up the RLC on ON/LN/TN (v3)
This is required for certain advanced functionality.

v2: save/restore list takes dword offsets
v3: rebase on gpu reset changes

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 10:49:18 -04:00
Alex Deucher 138e4e16f0 drm/radeon/kms: move ucode defines to a separate header
Avoids confusion and duplication.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-27 10:49:17 -04:00
Alex Deucher 9b1be4dc02 drm/radeon: fix UVD on big endian
This fixes the kernel side so that the ring should come
up and ring and IB tests should work.  The userspace
UVD drivers will also need big endian fixes.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-12 08:17:21 -04:00
Samuel Li 65337e60a7 drm/radeon: Use direct mapping for fast fb access on RS780/RS880 (v2)
v2: fix trailing whitespace

Signed-off-by: Samuel Li <samuel.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-03 10:36:21 -04:00
Adis Hamzić e49f3959a9 radeon: Fix system hang issue when using KMS with older cards
The current radeon driver initialization routines, when using KMS, are written
so that the IRQ installation routine is called before initializing the WB buffer
and the CP rings. With some ASICs, though, the IRQ routine tries to access the
GFX_INDEX ring causing a call to RREG32 with the value of -1 in
radeon_fence_read. This, in turn causes the system to completely hang with some
cards, requiring a hard reset.

A call stack that can cause such a hang looks like this (using rv515 ASIC for the
example here):
 * rv515_init (rv515.c)
 * radeon_irq_kms_init (radeon_irq_kms.c)
 * drm_irq_install (drm_irq.c)
 * radeon_driver_irq_preinstall_kms (radeon_irq_kms.c)
 * rs600_irq_process (rs600.c)
 * radeon_fence_process - due to SW interrupt (radeon_fence.c)
 * radeon_fence_read (radeon_fence.c)
 * hang due to RREG32(-1)

The patch moves the IRQ installation to the card startup routine, after the ring
has been initialized, but before the IRQ has been set. This fixes the issue, but
requires a check to see if the IRQ is already installed, as is the case in the
system resume codepath.
I have tested the patch on three machines using the rv515, the rv770 and the
evergreen ASIC. They worked without issues.

This seems to be a known issue and has been reported on several bug tracking
sites by various distributions (see links below). Most of reports recommend
booting the system with KMS disabled and then enabling KMS by reloading the
radeon module. For some reason, this was indeed a usable workaround, however,
UMS is now deprecated and disabled by default.

Bug reports:
https://bugzilla.redhat.com/show_bug.cgi?id=845745
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/561789
https://bbs.archlinux.org/viewtopic.php?id=156964

Signed-off-by: Adis Hamzić <adis@hamzadis.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-06-03 10:17:54 -04:00