| Age | Commit message (Collapse) | Author |
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Capturing and cleanup and modparams in error state requires
some macro tricks. Move that code into separated functions
for easier maintenance.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171026173657.49648-3-michal.wajdeczko@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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We keep details of GuC and HuC in separate error state struct.
Make GuC log part of it to group all related data together.
Since we are printing uC details at the end, with this change
GuC log will be moved there too.
v2: comment on new placement of the log (Chris)
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171026173657.49648-2-michal.wajdeczko@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Include GuC and HuC firmware details in captured error state
to provide additional debug information. To reuse existing
uc firmware pretty printer, introduce new drm-printer variant
that works with our i915_error_state_buf output. Also update
uc firmware pretty printer to accept const input.
v2: don't rely on current caps (Chris)
dump correct fw info (Michal)
v3: simplify capture of custom paths (Chris)
v4: improve 'why' comment (Joonas)
trim output if no fw path (Michal)
group code around uc error state (Michal)
v5: use error in cleanup_uc (Michal)
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171026173657.49648-1-michal.wajdeczko@intel.com
[ickle: allow printing uc_fw after allocation failure]
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Silence smatch by demonstrating that ctch->vma is allocated
following a successful chch_init()
drivers/gpu/drm/i915/intel_guc_ct.c:204 ctch_open() error:
we previously assumed 'ctch->vma' could be null (see line 197)
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171106135154.52520-1-michal.wajdeczko@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Silence smatch by demonstrating that guc->stage_desc_pool is allocated
following a successful guc_stage_desc_pool_create(),
drivers/gpu/drm/i915/i915_guc_submission.c:1293 i915_guc_submission_init() error: we previously assumed 'guc->stage_desc_pool' could be null (see line 1261)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Oscar Mateo <oscar.mateo@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171106114833.31199-1-chris@chris-wilson.co.uk
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
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An oversight in commit 87701b4b5593 ("drm/i915: Only free the oldest
stale object before a fresh allocation") was that not only do we have to
serialise concurrent users of llist_del_first(), but we also have to
lock llist_del_first() vs llist_del_all().
From llist.h,
* This can be summarized as follows:
*
* | add | del_first | del_all
* add | - | - | -
* del_first | | L | L
* del_all | | | -
*
* Where, a particular row's operation can happen concurrently with a column's
* operation, with "-" being no lock needed, while "L" being lock is needed.
This should hopefully explain:
<4>[ 89.287106] general protection fault: 0000 [#1] PREEMPT SMP
<4>[ 89.287126] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp coretemp i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core r8169 mii mei_me mei snd_pcm prime_numbers i2c_hid pinctrl_geminilake pinctrl_intel
<4>[ 89.287226] CPU: 2 PID: 23 Comm: ksoftirqd/2 Tainted: G U 4.14.0-rc8-CI-CI_DRM_3315+ #1
<4>[ 89.287247] Hardware name: Intel Corp. Geminilake/GLK RVP2 LP4SD (07), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
<4>[ 89.287270] task: ffff88017ab34ec0 task.stack: ffffc90000128000
<4>[ 89.287290] RIP: 0010:llist_add_batch+0x4/0x20
<4>[ 89.287301] RSP: 0018:ffffc9000012bdb8 EFLAGS: 00010296
<4>[ 89.287314] RAX: ffffffff811017ad RBX: 6e468801a1560000 RCX: ef3e53fceecdeb81
<4>[ 89.287330] RDX: 6e468801a1566130 RSI: ffff880103d73d98 RDI: ffff880103d73d98
<4>[ 89.287346] RBP: ffffc9000012bdb8 R08: ffff88017ab35780 R09: 0000000000000000
<4>[ 89.287361] R10: ffffc9000012bd68 R11: 00000000abb18c3d R12: ffffffffa01369e0
<4>[ 89.287377] R13: ffff88017fd1b8f8 R14: ffff88017ab34ec0 R15: 000000000000000a
<4>[ 89.287393] FS: 0000000000000000(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000
<4>[ 89.287411] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[ 89.287424] CR2: 00007ff0c0755018 CR3: 000000016df9b000 CR4: 00000000003406e0
<4>[ 89.287440] Call Trace:
<4>[ 89.287511] __i915_gem_free_object_rcu+0x20/0x40 [i915]
<4>[ 89.287527] rcu_process_callbacks+0x27a/0x730
<4>[ 89.287544] __do_softirq+0xc0/0x4ae
<4>[ 89.287559] ? smpboot_thread_fn+0x2d/0x280
<4>[ 89.287571] run_ksoftirqd+0x1f/0x70
<4>[ 89.287582] smpboot_thread_fn+0x18a/0x280
<4>[ 89.287595] kthread+0x114/0x150
<4>[ 89.287605] ? sort_range+0x30/0x30
<4>[ 89.287615] ? kthread_create_on_node+0x40/0x40
<4>[ 89.287628] ret_from_fork+0x27/0x40
<4>[ 89.287641] Code: 0d 48 83 ea 01 4c 89 c1 48 83 fa ff 74 12 48 23 0c d7 74 ed 48 c1 e2 06 48 0f bd c9 48 8d 04 0a 5d c3 90 90 90 90 90 55 48 89 e5 <48> 8b 0a 48 89 0e 48 89 c8 f0 48 0f b1 3a 48 39 c1 75 ed 48 85
<1>[ 89.287774] RIP: llist_add_batch+0x4/0x20 RSP: ffffc9000012bdb8
<4>[ 89.287826] ---[ end trace e775d15174d8ae02 ]---
(Lockless lists are only easy (and lockless) when only using
llist_add/llist_del_all!)
Fixes: 87701b4b5593 ("drm/i915: Only free the oldest stale object before
a fresh allocation")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171106111508.11941-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
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Some tests are designed to exercise the limits of the HW and may trigger
unintended side-effects making the machine unusable. This should not be
executed by default, but are still useful for early platform validation.
References: https://bugs.freedesktop.org/show_bug.cgi?id=103453
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171025153207.9589-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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As we bind, and unbind on error, we want to be sure that the vma->flags
are updated to reflect the binding state so that on the next invocation
all is well.
v2: Take two.
v3: Take three; vma-misplaced is checking map-and-fenceable so keep it
last!
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171105124550.32715-1-chris@chris-wilson.co.uk
Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com>
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into drm-next
some more amd/ttm fixes.
* 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux:
drm/ttm: Downgrade pr_err to pr_debug for memory allocation failures
drm/ttm: Always and only destroy bo->ttm_resv in ttm_bo_release_list
drm/amd/amdgpu: Enabling ACP clock in hw_init (v2)
drm/amdgpu/virt: don't dereference undefined 'module' struct
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Memory allocation failure should generally be handled gracefully by
callers. In particular, with transparent hugepage support, attempts
to allocate huge pages can fail under memory pressure, but the callers
fall back to allocating individual pages instead. In that case, there
would be spurious
[TTM] Unable to get page %u
error messages in dmesg.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Fixes a use-after-free due to a race condition in
ttm_bo_cleanup_refs_and_unlock, which allows one task to reserve a BO
and destroy its ttm_resv while another task is waiting for it to signal
in reservation_object_wait_timeout_rcu.
v2:
* Always initialize bo->ttm_resv in ttm_bo_init_reserved
(Christian König)
Fixes: 0d2bd2ae045d "drm/ttm: fix memory leak while individualizing BOs"
Reviewed-by: Chunming Zhou <david1.zhou@amd.com> # v1
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Enabling of ACP in hw_init does away with requirement of order
of probe on designware_i2s and acp dma driver. designware_i2s
reads i2s registers and this use to fail if acp dma driver was not probed
prior to it.
BUG=:b:62103837
TEST=modprobe snd-soc-acp-pcm
modprobe snd-soc-acp-rt5645-mach
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: acprt5650 [acprt5650], device 0: RT5645_AIF1 rt5645-aif1-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0
v2: use proper device in dev_err to fix warnings (Alex)
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Reviewed-on: https://chromium-review.googlesource.com/670207
Reviewed-by: Jason Clinton <jclinton@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/676628
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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git://anongit.freedesktop.org/drm/drm-intel into drm-next
This time really the last i915 batch for v4.15:
- PSR state tracking in crtc state (Ville)
- Fix eviction when the GGTT is idle but full (Chris)
- BDW DP aux channel timeout fix (James)
- LSPCON detection fixes (Shashank)
- Use for_each_pipe to iterate over pipes (Mika Kahola)
- Replace *_reference/unreference() or *_ref/unref with _get/put() (Harsha)
- Refactoring and preparation for DDI encoder type cleanup (Ville)
- Broadwell DDI FDI buf translation fix (Chris)
- Read CSB and CSB write pointer from HWSP in GVT-g VM if available (Weinan)
- GuC/HuC firmware loader refactoring (Michal)
- Make shrinking more effective and not stall so much (Chris)
- Cannonlake PLL fixes (Rodrigo)
- DP MST connector error propagation fixes (James)
- Convert timers to use timer_setup (Kees Cook)
- Skylake plane enable/disable unification (Juha-Pekka)
- Fix to actually free driver internal objects when requested (Chris)
- DDI buf trans refactoring (Ville)
- Skip waking the device to service pwrite (Chris)
- Improve DSI VBT backlight parsing abstraction (Madhav)
- Cannonlake VBT DDC pin mapping fix (Rodrigo)
* tag 'drm-intel-next-2017-10-23' of git://anongit.freedesktop.org/drm/drm-intel: (87 commits)
drm/i915: Update DRIVER_DATE to 20171023
drm/i915/cnl: Map VBT DDC Pin to BSpec DDC Pin.
drm/i915: Let's use more enum intel_dpll_id pll_id.
drm/i915: Use existing DSI backlight ports info
drm/i915: Parse DSI backlight/cabc ports.
drm/i915: Skip waking the device to service pwrite
drm/i915/crt: split compute_config hook by platforms
drm/i915: remove g4x lowfreq_avail and has_pipe_cxsr
drm/i915: Drop the redundant hdmi prefix/suffix from a lot of variables
drm/i915: Unify error handling for missing DDI buf trans tables
drm/i915: Centralize the SKL DDI A/E vs. B/C/D buf trans handling
drm/i915: Kill off the BXT buf_trans default_index
drm/i915: Pass encoder type to cnl_ddi_vswing_sequence() explicitly
drm/i915: Integrate BXT into intel_ddi_dp_voltage_max()
drm/i915: Pass the level to intel_prepare_hdmi_ddi_buffers()
drm/i915: Pass the encoder type explicitly to skl_set_iboost()
drm/i915: Extract intel_ddi_get_buf_trans_hdmi()
drm/i915: Relocate intel_ddi_get_buf_trans_*() functions
drm/i915: Flush the idle-worker for debugfs/i915_drop_caches
drm/i915: adjust get_crtc_fence_y_offset() to use base.y instead of crtc.y
...
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vc4->purgeable.size and vc4->purgeable.purged_size are size_t fields
and should be printed with a %zd specifier.
Fixes: b9f19259b84d ("drm/vc4: Add the DRM_IOCTL_VC4_GEM_MADVISE ioctl")
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20171101095731.14878-1-boris.brezillon@free-electrons.com
(cherry picked from commit 50f365cde4ffb5ae70c3f02384bbb46698aba65c)
Signed-off-by: Eric Anholt <eric@anholt.net>
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Accessing the THIS_MODULE directly is only possible when modules
are enabled, otherwise we get a build failure:
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c: In function 'amdgpu_virt_init_data_exchange':
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:331:20: error: dereferencing pointer to incomplete type 'struct module'
Further, THIS_MODULE is NULL when the driver is built-in, so the
code would likely cause a NULL pointer dereference.
This adds an #ifdef check to avoid the compile-time error, plus
a NULL pointer check before dereferencing THIS_MODULE. It might
be better to find a way to avoid using the module version
altogether.
Fixes: 2dc8f81e4f82 ("drm/amdgpu: SR-IOV data exchange between PF&VF")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-By: Xiangliang Yu <Xiangliang.Yu@amd.com>
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After a reset, we may immediately begin executing requests on restarting
the engines. Ergo this has to be last step with all re-initialisation
completed beforehand. The mocs setup was after we started executing the
requests; do it earlier!
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171102131430.22328-1-chris@chris-wilson.co.uk
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GEM_BUG_ON if the packed bits do not fit into the specified width.
v2: Avoid using the macro argument twice.
v3: Drop unnecessary braces. (Joonas)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (v1)
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171103090538.14474-1-tvrtko.ursulin@linux.intel.com
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We have to reject unknown flags for uAPI considerations, and also
because the curent implementation limits their i915 storage space
to two bits.
v2: (Chris Wilson)
* Fix fail in ABI check.
* Added unknown flags and BUILD_BUG_ON.
v3:
* Use ARCH_KMALLOC_MINALIGN instead of alignof. (Chris Wilson)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: cf6e7bac6357 ("drm/i915: Add support for drm syncobjs")
Cc: Jason Ekstrand <jason@jlekstrand.net>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171031102326.9738-1-tvrtko.ursulin@linux.intel.com
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nouveau next fixes.
Fixes arm32 build.
* 'linux-4.15' of git://github.com/skeggsb/linux:
drm/nouveau/bios/timing: mark expected switch fall-throughs
drm/nouveau/devinit/nv04: mark expected switch fall-throughs
drm/nouveau/bios: make const arrays hwsq_signature and edid_sig static
drm/nouveau/core/memory: fix missing mutex unlock
drm/nouveau/mmu: swap out round for ALIGN
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Addresses-Coverity-ID: 1260018
Addresses-Coverity-ID: 1260019
Addresses-Coverity-ID: 1260022
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Addresses-Coverity-ID: 143119
Addresses-Coverity-ID: 143120
Addresses-Coverity-ID: 143121
Addresses-Coverity-ID: 143122
Addresses-Coverity-ID: 143123
Addresses-Coverity-ID: 143124
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Don't populate arrays hwsq_signature and edid_sig on the stack but
instead make them static. Makes the object code smaller by over 190
bytes:
Before:
text data bss dec hex filename
35676 3312 64 39052 988c nouveau_bios.o
After:
text data bss dec hex filename
35319 3472 64 38855 97c7 nouveau_bios.o
(gcc version 7.2.0 x86_64)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Rounding value is guaranteed to be power-of-two, so this is better
anyway.
Fixes build on 32-bit.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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git://people.freedesktop.org/~gabbayo/linux into drm-next
- Usermode Events
The current events code implemented some data structures (waitqueue, fifo)
that were already implemented in the kernel. The patches below addresses
this issue by replacing them with the standard kernel implementation.
In addition, they simplify allocation of events IDs and memory for the events.
The patches also increase the maximum number of events while maintaining
compatibility with the older userspace library.
- Remove radeon support
Because Kaveri is fully supported in amdgpu and because current and future
versions of userspace libraries will only support amdgpu, we removed radeon
support from kfd. Current users can move to amdgpu while using the same
userspace libraries.
- Various bug fixes and cleanups
* tag 'drm-amdkfd-next-2017-11-02' of git://people.freedesktop.org/~gabbayo/linux: (26 commits)
drm/amdkfd: Minor cleanups
drm/amdkfd: Update queue_count before mapping queues
drm/amdkfd: Cleanup DQM ASIC-specific ops
drm/amdkfd: Register/Deregister process on qpd resolution
drm/amdkfd: Fix debug unregister procedure on process termination
drm/amdkfd: Avoid calling amd_iommu_unbind_pasid() when suspending
drm/amdkfd: Disable CP/SDMA ring/doorbell in MQD
drm/amdkfd: Clean up the data structure in kfd_process
drm/radeon: deprecate and remove KFD interface
drm/amdkfd: use a high priority workqueue for IH work
drm/amdkfd: wait only for IH work on IH exit
drm/amdkfd: increase IH num entries to 8192
drm/amdkfd: use standard kernel kfifo for IH
drm/amdkfd: increase limit of signal events to 4096 per process
drm/amdkfd: Make event limit dependent on user mode mapping size
drm/amdkfd: Use IH context ID for signal lookup
drm/amdkfd: Simplify event ID and signal slot management
drm/amdkfd: Simplify events page allocator
drm/amdkfd: Use wait_queue_t to implement event waiting
drm/amdkfd: remove redundant kfd_event_waiter.input_index
...
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into drm-next
Some amdgpu/ttm fixes.
* 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux:
drm/amd/powerplay: wrong control mode cause the fan spins faster unnecessarily
drm/amd/powerplay: fix memory leak of hardcoded pptable
drm/amdgpu:add fw-vram-usage for atomfirmware
drm/radeon: fix atombios on big endian
drm/ttm:fix memory leak due to individualize
drm/amdgpu: fix error handling in amdgpu_bo_do_create
drm/ttm: once more fix ttm_buffer_object_transfer
drm/amd/powerplay: change ASIC temperature reading on Vega10
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Because dev_priv is 0-ed it's not currently an issue, but since we
have dev_priv->perf.oa.test_config.uuid size at uuid + 1, we could
just copy the null character.
v2: Use strlcpy instead of strncpy (Chris)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171102121827.436-1-lionel.g.landwerlin@intel.com
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Before we assert that the engine is idle, make sure we flush any
residual tasklet. After that point, if the engine is not idle, more work
may be queued despite us trying to park the engine and go to sleep.
References: https://bugs.freedesktop.org/show_bug.cgi?id=103479
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171101202149.32493-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
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There is a possibility on gen9 hardware to miss the forcewake ack
message. The recommended workaround is to use another free
bit and toggle it until original bit is successfully acknowledged.
Some future gen9 revs might or might not fix the underlying issue but
using fallback forcewake bit dance can be considered as harmless:
without the ack timeout we never reach the fallback bit forcewake.
Thus as of now we adopt a blanket approach for all gen9 and leave
the bypassing the fallback bit approach for future patches if
corresponding hw revisions do appear.
Commit 83e3337204b2 ("drm/i915: Increase maximum polling time to 50ms
for forcewake request/clear ack") did increase the forcewake timeout.
If the issue was a delayed ack, future work could include finding
a suitable timeout value both for primary ack and reserve toggle
to reduce the worst case latency.
v2: use bit 15, naming, comment (Chris), only wait fallback ack
v3: fix return on fallback, backoff after fallback write (Chris)
v4: udelay on first pass, grammar (Chris)
v4: s/reserve/fallback
References: HSDES #1604254524
References: https://bugs.freedesktop.org/show_bug.cgi?id=102051
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171102094836.2506-1-mika.kuoppala@linux.intel.com
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This patch adds per engine reset and recovery (TDR) support when GuC is
used to submit workloads to GPU.
In the case of i915 directly submission to ELSP, driver manages hang
detection, recovery and resubmission. With GuC submission these tasks
are shared between driver and GuC. i915 is still responsible for detecting
a hang, and when it does it only requests GuC to reset that Engine. GuC
internally manages acquiring forcewake and idling the engine before
resetting it.
Once the reset is successful, i915 takes over again and handles the
resubmission. The scheduler in i915 knows which requests are pending so
after resetting a engine, pending workloads/requests are resubmitted
again.
v2: s/i915_guc_request_engine_reset/i915_guc_reset_engine/ to match the
non-guc function names.
v3: Removed debug message about engine restarting from which request,
since the new baseline do it regardless of submission mode. (Chris)
v4: Rebase.
v5: Do not pass unnecessary reporting flags to the fw (Jeff);
tasklet_schedule(&execlists->irq_tasklet) handles the resubmit; rebase.
v6: Rename the existing reset engine function and share a similar
interface between guc and non-guc paths (Chris).
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171031225309.10888-1-michel.thierry@intel.com
Reviewed-by: Jeff McGee <jeff.mcgee@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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intel_guc_reset sounds more like the microcontroller is the one performing
a reset, while in this case is the opposite. intel_reset_guc not only
makes it clearer, it follows the other intel_reset functions available.
v2: Print error message in English (Tvrtko).
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171030185616.32836-2-michel.thierry@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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If GuC firmware performs an engine reset while that engine had a
preemption pending, it will set the terminated attribute bit on our
preemption stage descriptor. GuC firmware retains all pending work
items for a high-priority GuC client, unlike the normal-priority GuC
client where work items are dropped. It wants to make sure the preempt-
to-idle work doesn't run when scheduling resumes, and uses this bit to
inform its scheduler and presumably us as well. Our job is to clear it
for the next preemption after reset, otherwise that and future
preemptions will never complete. We'll just clear it every time.
Signed-off-by: Jeff McGee <jeff.mcgee@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171101221630.25086-1-jeff.mcgee@intel.com
Reviewed-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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- Pascal temperature sensor support
- Improved BAR2 handling, greatly reduces time required to suspend
- Rework of the MMU code
- Allows us to properly support Pascal's new MMU layout (implemented)
- Lays the groundwork for improved userspace APIs later
- Misc other fixes
* 'linux-4.15' of git://github.com/skeggsb/linux: (151 commits)
drm/nouveau/gr/gf100-: don't prevent module load if firmware missing
drm/nouveau/mmu: remove old vmm frontend
drm/nouveau: improve selection of GPU page size
drm/nouveau: switch over to new memory and vmm interfaces
drm/nouveau: remove unused nouveau_fence_work()
drm/nouveau: queue delayed unmapping of VMAs on client workqueue
drm/nouveau: implement per-client delayed workqueue with fence support
drm/nouveau: determine memory class for each client
drm/nouveau: pass handle of vmm object to channel allocation ioctls
drm/nouveau: switch to vmm limit
drm/nouveau: allocate vmm object for every client
drm/nouveau: replace use of cpu_coherent with memory types
drm/nouveau: use nvif_mmu_type to determine BAR1 caching
drm/nouveau: fetch memory type indices that we care about for ttm
drm/nouveau: consolidate handling of dma mask
drm/nouveau: check kind validity against mmu object
drm/nouveau: allocate mmu object for every client
drm/nouveau: remove trivial cases of nvxx_device() usage
drm/nouveau/mmu: define user interfaces to mmu vmm opertaions
drm/nouveau/mmu: define user interfaces to mmu memory allocation
...
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Enables the use of Pascal's 2MiB pages for larger buffers.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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VMAs are about to not take references on the VMM they belong to, which
means more care is required when handling delayed unmapping.
Queuing it on the client workqueue ensures all pending VMA unmaps will
have completed before the VMM is destroyed.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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This is already handled in the top-level gem_new() ioctl in another manner,
but this will be removed in a future commit.
Ideally we'd not need to check up-front at all, and let the VMM code handle
error checking, but there are paths in the current BO management code where
this isn't possible due to map() not always being called during BO creation,
and map() calls not being allowed to fail during buffer migration.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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