Commit Graph

663690 Commits

Author SHA1 Message Date
Chunming Zhou 6b777607c1 drm/amdgpu: expand pte flags to uint64_t
Necessary for new asics.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:38 -04:00
Alex Deucher 7ccf5aa8ba drm/amdgpu/ih: store the full context id
The contextID field (formerly known as src_data) of the IH
vector stores client specific information about an interrupt.
It was expanded from 32 bits to 128 on newer asics.  Expand the
src_id field to handle this.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:37 -04:00
Alex Deucher d766e6a393 drm/amdgpu: switch ih handling to two levels (v3)
Newer asics have a two levels of irq ids now:
client id - the IP
src id - the interrupt src within the IP

v2: integrated Christian's comments.
v3: fix rebase fail in SI and CIK

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:37 -04:00
Ken Wang 832be4041d drm/amdgpu: add 64bit doorbell functions (v2)
Newer asics need 64 bit doorbells.

v2: fix comment (Nils)

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:36 -04:00
Ken Wang 7014285ade drm/amdgpu: add 64bit wb functions
Newer asics need 64 bit writeback slots.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:35 -04:00
Ken Wang 536fbf946c drm/amdgpu: change wptr to 64 bits (v2)
Newer asics need 64 bit wptrs.  If the wptr is now
smaller than the rptr that doesn't indicate a wrap-around
anymore.

v2: integrate Christian's comments.

Signed-off-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:35 -04:00
Junwei Zhang 8fe733289b drm/amdgpu: init aperture definitions (v2)
v2: agd: move apertures to mc structure

Signed-off-by: Flora Cui <Flora.Cui@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:34 -04:00
Daniel Vetter 04e30c9c86 drm/amdgpu: Merge pre/postclose hooks
Again no apparent explanation for the split except hysterical raisins.
Merging them also makes it a bit more obviuos what's going on wrt the
runtime pm refdancing.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:33 -04:00
Daniel Vetter 78910246dd drm/radeon: Merge pre/postclose hooks
Again no apparent explanation for the split except hysterical raisins.
Merging them also makes it a bit more obviuos what's going on wrt the
runtime pm refdancing.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:33 -04:00
Andres Rodriguez 82c6bd46bf drm/amdgpu: trace fence details in amdgpu_sched_run_job
This information is intended to provide the required data to associate
amdgpu tracepoints with their corresponding dma_fence_* events.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:32 -04:00
Andres Rodriguez f8d569011c drm/amdgpu: make trace format uniform csv name=value
Most of the traces have uniform format except for two of them. Having
all the traces match makes it simple to run awk on the ftrace output.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:31 -04:00
Xiangliang Yu 49abb980c5 drm/amdgpu/gfx8: move CE&DE meta data structure to vi_structs.h
Because different HWs have different definition for CE & DE meta
data, follow mqd design to move the structures to vi_structs.h.

And change the prefix from amdgpu to vi as the structures is only
for VI family.

Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:31 -04:00
Junshan Fang 7dae618174 drm/amd/amdgpu: add DID for Polaris10
Signed-off-by: Junshan Fang <Junshan.Fang@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:30 -04:00
Alex Deucher 2fc5338494 drm/amdgpu: add polaris12 to virtual dce handling
Was missed when polaris12 support was added.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:30 -04:00
Christian König 81522f71b1 drm/amdgpu: remove unused sync testing
Not used in a while.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:29 -04:00
Eric Huang 35011d398e drm/amd/powerplay: simplify avfs control code in smu7
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:28 -04:00
Eric Huang f9c993ceb1 drm/amd/powerplay: add function avfs control in smu7
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:28 -04:00
Eric Huang dd4bdf3b35 drm/amd/powerplay: add voltage change support through pp_table
Disable avfs to make voltage change take effect.

Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:27 -04:00
Andy Shevchenko a33c1a822c drm/radeon: remove useless and potentially wrong message
There is no need to repeat information that printed by PCI core at boot time.

Besides that printing was potentially wrong since resource_size_t might be
bigger than 32 bits and there is a dedicated specifier for such type, i.e.
%pap. Someone can fix it and use even better approach, i.e. %pR.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:26 -04:00
Rex Zhu cf4270ec68 drm/amdgpu: print full bios version in dmesg.
v2: fix merge error.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Xiaojie Yuan <Xiaojie.Yuan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:26 -04:00
Christian König c5cb934ebd drm/amdgpu: disable HDP flushes on APUs
We completely bypass the HDP now.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:25 -04:00
Joe Perches 7ca85295d8 gpu: drm: amd/radeon: Convert printk(KERN_<LEVEL> to pr_<level>
Use a more common logging style.

Miscellanea:

o Coalesce formats and realign arguments
o Neaten a few macros now using pr_<level>

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:24 -04:00
Joe Perches eeca232490 drm: Use pr_cont where appropriate
Using 'printk("\n")' is not preferred anymore and
using printk to continue logging messages now produces
multiple line logging output unless the continuations
use KERN_CONT.

Convert these uses to appropriately use pr_cont or a
single printk where possible.

Miscellanea:

o Use a temporary const char * instead of multiple printks
o Remove trailing space from logging by using a leading space instead

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:24 -04:00
Alex Deucher 9dc5a91e4d drm/amdgpu: put gtt at 0 in the internal address space
There still seem to be some blocks that make accesses
in the lower part of the address space.  This works around
this.

Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:23 -04:00
Alex Deucher dc3abc16a7 drm/amdgpu/vce2: fix vce bar programming
Program the VCE BAR and offsets properly.  The current code
was carried over from a limitation from older VCE versions.

Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:22 -04:00
Joe Perches 98a36749eb drivers/gpu: Convert remaining uses of pr_warning to pr_warn
To enable eventual removal of pr_warning

This makes pr_warn use consistent for drivers/gpu

Prior to this patch, there were 15 uses of pr_warning and
20 uses of pr_warn in drivers/gpu

Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:22 -04:00
Geert Uytterhoeven 6137a0fec2 drm/amd: Spelling s/SDMA_WRTIE_SUB_OPCODE_TILED/SDMA_WRITE_SUB_OPCODE_TILED/
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: dri-devel@lists.freedesktop.orgamd-gfx@lists.freedesktop.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:21 -04:00
Lyude 92c177b794 drm/radeon/dp_auxch: Ratelimit aux transfer debug messages
Aux transfers always fail with non-zero status flags when there's
nothing connected on the port, so we don't usually need to see all of
the debugging information from it. Also, we try reprobing a -lot-, so
without ratelimiting most of the kernel log is filled up with messages
from radeon_dp_aux_transfer_native.

Signed-off-by: Lyude <lyude@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:21 -04:00
Alex Deucher 7bb0613ebb drm/amdgpu/powerplay: enable LEDs on Fiji boards
This enables the LEDs that light up based on DPM states
on some Fiji boards.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=97590

Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:20 -04:00
Junwei Zhang ea323f88a2 drm/amdgpu: rename amdgpu_gca_config to amdgpu_gfx_config
Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:19 -04:00
Trigger Huang 07c397f934 drm/amdgpu: Fix module unload hang by KIQ IRQ set
In some cases, manually insmod/rmmod amdgpu is necessary. When
unloading amdgpu, the KIQ IRQ enable/disable function will case
system hang. The root cause is, in the sequence of function
amdgpu_fini, the sw_fini of IP block AMD_IP_BLOCK_TYPE_GFX will be
invoked earlier than that of AMD_IP_BLOCK_TYPE_IH. So continue to use
the variable freed by AMD_IP_BLOCK_TYPE_GFX will cause system hang.

Signed-off-by: Trigger Huang <trigger.huang@amd.com>
Reviewed-by: Xiangliang Yu < Xiangliang.Yu@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:19 -04:00
Alex Deucher dfe38bd834 drm/amdgpu: bump driver version for new lds buffer query
v2: agd: bump version

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:18 -04:00
Junwei Zhang df6e2c4aeb drm/amdgpu: export gfx config double offchip LDS buffers (v3)
v2: move the config struct to drm_amdgpu_info_device
v3: move the config feature to amdgpu_gca_config

Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:17 -04:00
Xiangliang Yu 24de75151b drm/amdgpu/gfx: free memory of mqd backup
Need to free mqd backup when destroying ring.

Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:17 -04:00
Xiangliang Yu d1aad4d8a4 drm/amdgpu/virt: fix typo
When send messages to hypervior, the messages format should be is
idh_request, not idh_event.

Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:16 -04:00
Xiangliang Yu 59a82d7d69 drm/amdgpu: change pointer of mqd_ptr & mqd_backup to void
vi_mqd is only used by VI family but mqd_ptr and mqd_backup is
common for all ASIC, so change the pointer to void.

Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Monk Liu <Monk.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:15 -04:00
Monk Liu 1fb37a3d0f drm/amdgpu:fix kiq_resume routine (V2)
v2:
use in_rest to fix compute ring test failure issue
which occured after FLR/gpu_reset.

we need backup a clean status of MQD which was created in drv load
stage, and use it in resume stage, otherwise KCQ and KIQ all may
faild in ring/ib test.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:15 -04:00
Monk Liu f6bd79424c drm/amdgpu:use clear_ring to clr RB
In resume routine, we need clr RB prior to the
ring test of engine, otherwise some engine hang
duplicated during GPU reset.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:14 -04:00
Monk Liu c79ecfbf5b drm/amdgpu:imple ring clear
we can use it clear ring buffer instead of fullfill
0, which is not correct for engine

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:13 -04:00
Monk Liu 9b49c3ab06 drm/amdgpu:alloc mqd backup
this is required for restoring the mqds after GPU reset.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:13 -04:00
Monk Liu 223049cd54 drm/amdgpu:new field in_reset introduced for gfx
use it to seperate driver load and gpu reset/resume
because gfx IP need different approach for different
hw_init trigger source

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:12 -04:00
Monk Liu 2641e38b02 drm/amdgpu:RUNTIME flag should clr later
this flag will get cleared by request gpu access

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:12 -04:00
Monk Liu 480da26260 drm/amdgpu:use work instead of delay-work
no need to use a delay work since we don't know how
much time hypervisor takes on FLR, so just polling
and waiting in a work.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:11 -04:00
Monk Liu 4a370955ed drm/amdgpu:no kiq for mailbox registers access
Use no kiq version reg access due to:
1) better performance
2) INTR context consideration (some routine in mailbox is in
   INTR context e.g.xgpu_vi_mailbox_rcv_irq)

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:10 -04:00
Ken Xue 562fe45c05 drm/amdgpu:Refine handshake of mailbox
Signed-off-by: Ken Xue <Ken.Xue@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:10 -04:00
Monk Liu 15d72fd745 drm/amdgpu:impl RREG32 no kiq version
some registers are PF & VF copy, and we can safely use
mmio method to access them.

and sometime we are forbid to use kiq to access registers
for example in INTR context.

we need a MACRO that always disable KIQ for regs accessing

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:09 -04:00
Monk Liu b85c9d2a3b drm/amdgpu:use MACRO like other places
Change-Id: Ica8f86577a50d817119de4b4fb95068dc72652a9
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:08 -04:00
Nicolai Hähnle 59c66c911f drm/amdgpu: simplify reservation handling during buffer creation
By using ttm_bo_init_reserved instead of the manual initialization of
the reservation object, the reservation lock will be properly unlocked
and destroyed when the TTM BO initialization fails.

Actual deadlocks caused by the missing unlock should have been fixed
by "drm/ttm: never add BO that failed to validate to the LRU list",
superseding the flawed fix in commit 38fc4856ad ("drm/amdgpu: fix
a potential deadlock in amdgpu_bo_create_restricted()").

This change fixes remaining recursive locking errors that can be seen
with lock debugging enabled, and avoids the error of freeing a locked
mutex.

As an additional minor bonus, buffers created with resv == NULL and
the AMDGPU_GEM_CREATE_VRAM_CLEARED flag are now only added to the
global LRU list after the fill commands have been issued.

v2: use amdgpu_bo_unreserve instead of ttm_bo_unreserve

Fixes: 12a852219583 ("drm/amdgpu: improve AMDGPU_GEM_CREATE_VRAM_CLEARED handling (v2)")
Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:08 -04:00
Nicolai Hähnle ca9cf68de1 drm/ttm: add ttm_bo_init_reserved
This variant of ttm_bo_init returns the validated buffer object with
the reservation lock held when resv == NULL. This is convenient for
callers that want to use the BO immediately, e.g. for initializing its
contents.

Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:07 -04:00
Nicolai Hähnle 882e8cfcbc drm/ttm: fix the documentation of ttm_bo_init
As the comment says: callers of ttm_bo_init cannot rely on having the
only reference to the BO when the function returns successfully.

Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29 23:53:06 -04:00