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>
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=845745https://bugs.launchpad.net/ubuntu/+source/linux/+bug/561789https://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
radeon currently uses a drm function to get the speed capabilities for
the bus, drm_pcie_get_speed_cap_mask. However, this is a non-standard
method of performing this detection and this patch changes it to use
the max_bus_speed attribute.
From: Lucas Kannebley Tavares <lucaskt@linux.vnet.ibm.com>
Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Not needed and seems to cause some problems.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
v2: not only raise the clocks on VCPU boot, but also on IB test.
v3: agd5f: fix r600_uvd_init return value.
fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=63730
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Just everything needed to decode videos using UVD.
v6: just all the bugfixes and support for R7xx-SI merged in one patch
v7: UVD_CGC_GATE is a write only register, lockup detection fix
v8: split out VRAM fallback changes, remove support for RV770,
add support for HEMLOCK, add buffer sizes checks
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add a per-asic MC (memory controller) mask which holds the
mak address mask the asic is capable of. Use this when
calculating the vram and gtt locations rather using asic
specific functions or limiting everything to 32 bits.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The MC is mostly likely busy (e.g., display requests), not hung
so no need to reset it. Doing an MC reset is tricky and not
particularly reliable. Fixes hangs in certain cases.
Reported-by: Josh Boyer <jwboyer@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This is required to get the reference clock used
by the gfx engine for things like timestamps. Fixes
support for GL extensions the use timestamps on
certain boards.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
fetch the reset mask and check if the relevant ring flags
are set to determine whether the ring is hung or not.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
When we attempt the reset the GPU, look at the status registers
to determine what blocks need to be reset.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Used by all asic families from r600+.
Flag for the vbios and later instances of the driver
that the GPU is hung.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Fixes GPU hang during DMA ring IB test.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=59672
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Fixes a hard lock in the gpu reset code after the
rework for DMA support (0ecebb9e0d
"drm/radeon: switch to a finer grained reset for evergreen")
due to not bailing before the MC shutdown if the relevant engines
are idle.
Discussion:
http://lists.freedesktop.org/archives/dri-devel/2013-January/032985.html
Reported-by: Eldad Zack <eldad@fogrefinery.com>
Tested-by: Eldad Zack <eldad@fogrefinery.com>
Acked-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
- r6xx actually uses a slightly different packet format,
although both formats seem to work ok.
- r7xx doesn't have the count multiple of 2 limitation.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
No change in functionality as we currently set all the reset
flags.
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This try to reset the dma engine when performing gpu reset. Hopefully
bringing back the gpu dma engine in sane state.
v2: agd5f: fix dma reset on cayman/TN, add support for SI
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
To help debug dma related lockup.
v2: agd5f: update SI as well
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
count must be a multiple of 2. Fixes crashes on
R6xx chips reported by a number of people.
Cc: Borislav Petkov <bp@alien8.de>
Cc: Markus Trippelsdorf <markus@trippelsdorf.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Tested-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The dma ring can't write to register thus have to write to memory
its fence value. This ensure that it doesn't try to use scratch
register for dma ring fence driver.
Should fix:
https://bugs.freedesktop.org/show_bug.cgi?id=58166
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Alex writes:
"adds support for the
asynchronous DMA engines on r6xx-SI. These engines are used
for ttm bo moves and VM page table updates currently. They
could also be exposed via the CS ioctl for userspace use,
but I haven't had a chance to add proper CS checker patches
for them yet. These patches have been tested extensively
internally for months, so they should be pretty solid."
* 'drm-next-3.8' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: use DMA engine for VM page table updates on SI
drm/radeon: add dma engine support for vm pt updates on si (v2)
drm/radeon: use DMA engine for VM page table updates on cayman/TN
drm/radeon: add dma engine support for vm pt updates on ni (v5)
drm/radeon: use async dma for ttm buffer moves on 6xx-SI
drm/radeon/kms: add support for dma rings to radeon_test_moves()
drm/radeon/kms: Add initial support for async DMA on SI
drm/radeon/kms: Add initial support for async DMA on cayman/TN
drm/radeon/kms: Add initial support for async DMA on evergreen
drm/radeon/kms: Add initial support for async DMA on r6xx/r7xx
Use hweight32 instead of counting for each bit
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Pull drm merge (part 1) from Dave Airlie:
"So first of all my tree and uapi stuff has a conflict mess, its my
fault as the nouveau stuff didn't hit -next as were trying to rebase
regressions out of it before we merged.
Highlights:
- SH mobile modesetting driver and associated helpers
- some DRM core documentation
- i915 modesetting rework, haswell hdmi, haswell and vlv fixes, write
combined pte writing, ilk rc6 support,
- nouveau: major driver rework into a hw core driver, makes features
like SLI a lot saner to implement,
- psb: add eDP/DP support for Cedarview
- radeon: 2 layer page tables, async VM pte updates, better PLL
selection for > 2 screens, better ACPI interactions
The rest is general grab bag of fixes.
So why part 1? well I have the exynos pull req which came in a bit
late but was waiting for me to do something they shouldn't have and it
looks fairly safe, and David Howells has some more header cleanups
he'd like me to pull, that seem like a good idea, but I'd like to get
this merge out of the way so -next dosen't get blocked."
Tons of conflicts mostly due to silly include line changes, but mostly
mindless. A few other small semantic conflicts too, noted from Dave's
pre-merged branch.
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (447 commits)
drm/nv98/crypt: fix fuc build with latest envyas
drm/nouveau/devinit: fixup various issues with subdev ctor/init ordering
drm/nv41/vm: fix and enable use of "real" pciegart
drm/nv44/vm: fix and enable use of "real" pciegart
drm/nv04/dmaobj: fixup vm target handling in preparation for nv4x pcie
drm/nouveau: store supported dma mask in vmmgr
drm/nvc0/ibus: initial implementation of subdev
drm/nouveau/therm: add support for fan-control modes
drm/nouveau/hwmon: rename pwm0* to pmw1* to follow hwmon's rules
drm/nouveau/therm: calculate the pwm divisor on nv50+
drm/nouveau/fan: rewrite the fan tachometer driver to get more precision, faster
drm/nouveau/therm: move thermal-related functions to the therm subdev
drm/nouveau/bios: parse the pwm divisor from the perf table
drm/nouveau/therm: use the EXTDEV table to detect i2c monitoring devices
drm/nouveau/therm: rework thermal table parsing
drm/nouveau/gpio: expose the PWM/TOGGLE parameter found in the gpio vbios table
drm/nouveau: fix pm initialization order
drm/nouveau/bios: check that fixed tvdac gpio data is valid before using it
drm/nouveau: log channel debug/error messages from client object rather than drm client
drm/nouveau: have drm debugging macros build on top of core macros
...
Convert #include "..." to #include <path/...> in drivers/gpu/.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
Restructure the code to jump out via labels instead of directly returning
early. Also make error reporting consistent across all hardware generations.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Simon Kitching <skitching@vonos.net>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Let's allow GCC to optimize better.
This exposed some five unused functions, but this patch doesn't remove them.
Signed-off-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Store a reference to the VM into the IB structure, that
makes calculating the IBs address a bit less complicated.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
It was only used for dynpm, but has been replaced with
a better implementation using fences. Remove it.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Returns a snapshot of the GPU clock counter. Needed
for certain OpenGL extensions.
v2: agd5f
- address Jerome's comments
- add function documentation
Signed-off-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This check the root ports supported link speeds and enables
GEN2 mode if the 5.0 GT link speed is available.
The first 3.0 cards are SI so they will probably need more investigation.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Print various CP register that have valuable informations regarding
GPU lockup.
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Add support for using memory buffers rather than
scratch registers. Some rings may not be able to
write to scratch registers.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Just store the index in the ring structure.
Idea taken from one of Jerome's wip rptr patches.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Const IBs are executed on the CE not the CP, so we can't
fence them in the normal way.
So submit them directly before the IB instead, just as
the documentation says.
v2: keep the extra documentation
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Before emitting any indirect buffer, emit the offset of the next
valid ring content if any. This allow code that want to resume
ring to resume ring right after ib that caused GPU lockup.
v2: use scratch registers instead of storing it into memory
v3: skip over the surface sync for ni and si as well
v4: use SET_CONFIG_REG instead of PACKET0
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Making it easier to control when it is executed.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Just reinitialize the shader content on resume instead.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
The IB pool is in gart memory, so it is completely
superfluous to unpin / repin it on suspend / resume.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
For a normal suspend/resume we allready wait for
the rings to be empty, and for a suspend/reasume
in case of a lockup we REALLY don't want to wait
for anything.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
So we can skip the locking. Also renames sw_int to
ring_int, cause that better matches its purpose.
Signed-off-by: Christian Koenig <christian.koenig@amd.com>
Alex Deucher