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2021-09-15drm/i915: Mark GPU wedging on driver unregister unrecoverableJanusz Krzysztofik1-1/+1
GPU wedged flag now set on driver unregister to prevent from further using the GPU can be then cleared unintentionally when calling __intel_gt_unset_wedged() still before the flag is finally marked unrecoverable. We need to have it marked unrecoverable earlier. Implement that by replacing a call to intel_gt_set_wedged() in intel_gt_driver_unregister() with intel_gt_set_wedged_on_fini(). With the above in place, intel_gt_set_wedged_on_fini() is now called twice on driver remove, second time from __intel_gt_disable(). This seems harmless, while dropping intel_gt_set_wedged_on_fini() from __intel_gt_disable() proved to break some driver probe error unwind paths as well as mock selftest exit path. Signed-off-by: Janusz Krzysztofik <[email protected]> Cc: Michał Winiarski <[email protected]> Reviewed-by: Michał Winiarski <[email protected]> Signed-off-by: Matt Roper <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-15drm/i915: Add mmap lock around vma_lookup() in the mman selftest.Maarten Lankhorst1-0/+2
Add mmap_read_lock/unlock around vma_lookup(). The core code requires this for lookups. Since we only check if the return value is NULL, we can immediately unlock. This fixes the following splat in the selftes: i915: Running i915_gem_mman_live_selftests/igt_mmap ------------[ cut here ]------------ WARNING: CPU: 3 PID: 5654 at include/linux/mmap_lock.h:164 find_vma+0x4e/0xb0 Modules linked in: i915(+) vgem fuse snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio mei_hdcp x86_pkg_temp_thermal coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_intel_dspcfg snd_hda_codec snd_hwdep e1000e snd_hda_core ptp snd_pcm ttm mei_me pps_core i2c_i801 prime_numbers i2c_smbus mei [last unloaded: i915] CPU: 3 PID: 5654 Comm: i915_selftest Tainted: G U 5.15.0-rc1-CI-Trybot_7984+ #1 Hardware name: Micro-Star International Co., Ltd. MS-7B54/Z370M MORTAR (MS-7B54), BIOS 1.00 10/31/2017 RIP: 0010:find_vma+0x4e/0xb0 Code: de 48 89 ef e8 d3 94 fe ff 48 85 c0 74 34 48 83 c4 08 5b 5d c3 48 8d bf 28 01 00 00 be ff ff ff ff e8 d6 46 8b 00 85 c0 75 c8 <0f> 0b 48 8b 85 b8 00 00 00 48 85 c0 75 c6 48 89 ef e8 12 26 87 00 RSP: 0018:ffffc900013df980 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00007f9df2b80000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff822e314c RDI: ffffffff8233c83f RBP: ffff88811bafc840 R08: ffff888107d0ddb8 R09: 00000000fffffffe R10: 0000000000000001 R11: 00000000ffbae7ba R12: 0000000000000000 R13: 0000000000000000 R14: ffff88812a710000 R15: ffff888114fa42c0 FS: 00007f9def9d4c00(0000) GS:ffff888266580000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f799627fe50 CR3: 000000011bbc2006 CR4: 00000000003706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __igt_mmap+0xe0/0x490 [i915] igt_mmap+0xd2/0x160 [i915] ? __trace_bprintk+0x6e/0x80 __i915_subtests.cold.7+0x42/0x92 [i915] ? i915_perf_selftests+0x20/0x20 [i915] ? __i915_nop_setup+0x10/0x10 [i915] __run_selftests.part.3+0x10d/0x172 [i915] i915_live_selftests.cold.5+0x1f/0x47 [i915] i915_pci_probe+0x93/0x1d0 [i915] Signed-off-by: Maarten Lankhorst <[email protected]> Closes: https://gitlab.freedesktop.org/drm/intel/issues/4129 Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Reviewed-by: Matthew Auld <[email protected]>
2021-09-15Merge drm/drm-next into drm-intel-gt-nextJoonas Lahtinen10481-246797/+567167
Close the divergence which has caused patches not to apply and have a solid baseline for the PXP patches that Rodrigo will send a topic branch PR for. Signed-off-by: Joonas Lahtinen <[email protected]>
2021-09-14drm/i915/dg2: Define MOCS table for DG2Matt Roper1-1/+36
Bspec: 45101, 45427 Cc: Ramalingam C <[email protected]> Signed-off-by: Matt Roper <[email protected]> Reviewed-by: Matt Atwood <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-14drm/i915/xehpsdv: Define MOCS table for XeHP SDVLucas De Marchi1-1/+34
Like DG1, XeHP SDV doesn't have LLC/eDRAM control values due to being a dgfx card. XeHP SDV adds 2 more bits: L3_GLBGO to "push the Go point to memory for L3 destined transaction" and L3_LKP to "enable Lookup for uncacheable accesses". Bspec: 45101 Cc: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: Lucas De Marchi <[email protected]> Signed-off-by: Stuart Summers <[email protected]> Signed-off-by: Matt Roper <[email protected]> Reviewed-by: Clint Taylor <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-14drm/i915: Enable -Wsometimes-uninitializedNathan Chancellor1-1/+0
This warning helps catch uninitialized variables. It should have been enabled at the same time as commit b2423184ac33 ("drm/i915: Enable -Wuninitialized") but I did not realize they were disabled separately. Enable it now that i915 is clean so that it stays that way. Reviewed-by: Nick Desaulniers <[email protected]> Signed-off-by: Nathan Chancellor <[email protected]> Signed-off-by: Jani Nikula <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-14drm/i915/selftests: Always initialize err in ↵Nathan Chancellor1-0/+2
igt_dmabuf_import_same_driver_lmem() Clang warns: drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c:127:13: warning: variable 'err' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] } else if (PTR_ERR(import) != -EOPNOTSUPP) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c:138:9: note: uninitialized use occurs here return err; ^~~ drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c:127:9: note: remove the 'if' if its condition is always true } else if (PTR_ERR(import) != -EOPNOTSUPP) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c:95:9: note: initialize the variable 'err' to silence this warning int err; ^ = 0 The test is expected to pass if i915_gem_prime_import() returns -EOPNOTSUPP so initialize err to zero in this case. Fixes: cdb35d1ed6d2 ("drm/i915/gem: Migrate to system at dma-buf attach time (v7)") Reported-by: Dan Carpenter <[email protected]> Reviewed-by: Thomas Hellström <[email protected]> Signed-off-by: Nathan Chancellor <[email protected]> Signed-off-by: Jani Nikula <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-14drm/i915/selftests: Do not use import_obj uninitializedNathan Chancellor1-3/+2
Clang warns a couple of times: drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c:63:6: warning: variable 'import_obj' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized] if (import != &obj->base) { ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c:80:22: note: uninitialized use occurs here i915_gem_object_put(import_obj); ^~~~~~~~~~ drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c:63:2: note: remove the 'if' if its condition is always false if (import != &obj->base) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c:38:46: note: initialize the variable 'import_obj' to silence this warning struct drm_i915_gem_object *obj, *import_obj; ^ = NULL Shuffle the import_obj initialization above these if statements so that it is not used uninitialized. Fixes: d7b2cb380b3a ("drm/i915/gem: Correct the locking and pin pattern for dma-buf (v8)") Reported-by: Dan Carpenter <[email protected]> Reviewed-by: Thomas Hellström <[email protected]> Signed-off-by: Nathan Chancellor <[email protected]> Signed-off-by: Jani Nikula <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Add GuC kernel docMatthew Brost5-60/+181
Add GuC kernel doc for all structures added thus far for GuC submission and update the main GuC submission section with the new interface details. v2: - Drop guc_active.lock DOC v3: - Fixup a few kernel doc comments (Daniele) v4 (Daniele): - Implement doc suggestions from John - Add kerneldoc for all members of the GuC structure and pull the file in i915.rst v5 (Daniele): - Implement new doc suggestions from John Signed-off-by: Matthew Brost <[email protected]> Signed-off-by: Daniele Ceraolo Spurio <[email protected]> Cc: John Harrison <[email protected]> Reviewed-by: John Harrison <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Drop guc_active move everything into guc_stateMatthew Brost4-58/+49
Now that we have locking hierarchy of sched_engine->lock -> ce->guc_state everything from guc_active can be moved into guc_state and protected the guc_state.lock. Signed-off-by: Matthew Brost <[email protected]> Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Move fields protected by guc->contexts_lock into sub structureMatthew Brost5-67/+69
To make ownership of locking clear move fields (guc_id, guc_id_ref, guc_id_link) to sub structure guc_id in intel_context. Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: Matthew Brost <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Move GuC priority fields in context under guc_activeMatthew Brost3-37/+46
Move GuC management fields in context under guc_active struct as this is where the lock that protects theses fields lives. Also only set guc_prio field once during context init. v2: (Daniele) - set CONTEXT_SET_INIT Signed-off-by: Matthew Brost <[email protected]> Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Drop pin count check trick between sched_disable and re-pinMatthew Brost2-21/+34
Drop pin count check trick between a sched_disable and re-pin, now rely on the lock and counter of the number of committed requests to determine if scheduling should be disabled on the context. Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: Matthew Brost <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Proper xarray usage for contexts_lookupMatthew Brost1-15/+87
Lock the xarray and take ref to the context if needed. v2: (Checkpatch) - Add new line after declaration (Daniel Vetter) - Correct put / get accounting in xa_for_loops v3: (Checkpatch) - Extra new line Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: Matthew Brost <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Rework and simplify lockingMatthew Brost3-120/+90
Rework and simplify the locking with GuC subission. Drop sched_state_no_lock and move all fields under the guc_state.sched_state and protect all these fields with guc_state.lock . This requires changing the locking hierarchy from guc_state.lock -> sched_engine.lock to sched_engine.lock -> guc_state.lock. v2: (Daniele) - Don't check fields outside of lock during sched disable, check less fields within lock as some of the outside are no longer needed Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: Matthew Brost <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Move guc_blocked fence to struct guc_stateMatthew Brost3-14/+14
Move guc_blocked fence to struct guc_state as the lock which protects the fence lives there. s/ce->guc_blocked/ce->guc_state.blocked/g v2: (Daniele) - s/blocked_fence/blocked/g Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: Matthew Brost <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Release submit fence from an irq_workMatthew Brost2-3/+24
A subsequent patch will flip the locking hierarchy from ce->guc_state.lock -> sched_engine->lock to sched_engine->lock -> ce->guc_state.lock. As such we need to release the submit fence for a request from an IRQ to break a lock inversion - i.e. the fence must be release went holding ce->guc_state.lock and the releasing of the can acquire sched_engine->lock. v2: (Daniele) - Delete request from list before calling irq_work_queue Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: Matthew Brost <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Reset LRC descriptor if register returns -ENODEVMatthew Brost1-2/+4
Reset LRC descriptor if a context register returns -ENODEV as this means we are mid-reset. Fixes: eb5e7da736f3 ("drm/i915/guc: Reset implementation for new GuC interface") Signed-off-by: Matthew Brost <[email protected]> Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Don't touch guc_state.sched_state without a lockMatthew Brost1-5/+17
Before we did some clever tricks to not use the a lock when touching guc_state.sched_state in certain cases. Don't do that, enforce the use of the lock. v2: (kernel test robo ) - Add __maybe_unused to sched_state_is_init() v3: rebase after the unused code path removal has been moved to an earlier patch. Signed-off-by: Matthew Brost <[email protected]> Reported-by: kernel test robot <[email protected]> Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Take context ref when cancelling requestMatthew Brost1-1/+4
A context can get destroyed after cancelling a request, if a context or GT reset occurs, so take a reference to context when cancelling a request. Fixes: 62eaf0ae217d ("drm/i915/guc: Support request cancellation") Signed-off-by: Matthew Brost <[email protected]> Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/selftests: Add initial GuC selftest for scrubbing lost G2HMatthew Brost6-0/+185
While debugging an issue with full GT resets I went down a rabbit hole thinking the scrubbing of lost G2H wasn't working correctly. This proved to be incorrect as this was working just fine but this chase inspired me to write a selftest to prove that this works. This simple selftest injects errors dropping various G2H and then issues a full GT reset proving that the scrubbing of these G2H doesn't blow up. v2: (Daniel Vetter) - Use ifdef instead of macros for selftests v3: (Checkpatch) - A space after 'switch' statement v4: (Daniele) - A comment saying GT won't idle if G2H are lost Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: Matthew Brost <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Copy whole golden context, set engine state size of subsetMatthew Brost1-9/+17
When the GuC does a media reset, it copies a golden context state back into the corrupted context's state. The address of the golden context and the size of the engine state restore are passed in via the GuC ADS. The i915 had a bug where it passed in the whole size of the golden context, not the size of the engine state to restore resulting in a memory corruption. Also copy the entire golden context on init rather than just the engine state that is restored. v2 (Daniele): use defines to avoid duplicated const variables (John). Fixes: 481d458caede ("drm/i915/guc: Add golden context to GuC ADS") Signed-off-by: Matthew Brost <[email protected]> Signed-off-by: Daniele Ceraolo Spurio <[email protected]> Cc: John Harrison <[email protected]> Reviewed-by: John Harrison <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Don't enable scheduling on a banned context, guc_id invalid, ↵Matthew Brost1-3/+19
not registered When unblocking a context, do not enable scheduling if the context is banned, guc_id invalid, or not registered. v2: (Daniele) - Add helper for unblock Fixes: 62eaf0ae217d ("drm/i915/guc: Support request cancellation") Signed-off-by: Matthew Brost <[email protected]> Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Cc: <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Kick tasklet after queuing a requestMatthew Brost1-0/+1
Kick tasklet after queuing a request so it submitted in a timely manner. Fixes: 3a4cdf1982f0 ("drm/i915/guc: Implement GuC context operations for new inteface") Signed-off-by: Matthew Brost <[email protected]> Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13Revert "drm/i915/gt: Propagate change in error status to children on unhold"Matthew Brost1-4/+0
Propagating errors to dependent fences is broken and can lead to errors from one client ending up in another. In commit 3761baae908a ("Revert "drm/i915: Propagate errors on awaiting already signaled fences""), we attempted to get rid of fence error propagation but missed the case added in commit 8e9f84cf5cac ("drm/i915/gt: Propagate change in error status to children on unhold"). Revert that one too. This error was found by an up-and-coming selftest which triggers a reset during request cancellation and verifies that subsequent requests complete successfully. v2: (Daniel Vetter) - Use revert v3: (Jason) - Update commit message v4 (Daniele): - fix checkpatch error in commit message. References: '3761baae908a ("Revert "drm/i915: Propagate errors on awaiting already signaled fences"")' Signed-off-by: Matthew Brost <[email protected]> Signed-off-by: Daniele Ceraolo Spurio <[email protected]> Reviewed-by: Daniel Vetter <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Workaround reset G2H is received after schedule done G2HMatthew Brost1-6/+35
If the context is reset as a result of the request cancellation the context reset G2H is received after schedule disable done G2H which is the wrong order. The schedule disable done G2H release the waiting request cancellation code which resubmits the context. This races with the context reset G2H which also wants to resubmit the context but in this case it really should be a NOP as request cancellation code owns the resubmit. Use some clever tricks of checking the context state to seal this race until the GuC firmware is fixed. v2: (Checkpatch) - Fix typos v3: (Daniele) - State that is a bug in the GuC firmware Fixes: 62eaf0ae217d ("drm/i915/guc: Support request cancellation") Signed-off-by: Matthew Brost <[email protected]> Cc: <[email protected]> Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Process all G2H message at once in work queueMatthew Brost1-3/+3
Rather than processing 1 G2H at a time and re-queuing the work queue if more messages exist, process all the G2H in a single pass of the work queue. Signed-off-by: Matthew Brost <[email protected]> Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Michal Wajdeczko <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Don't drop ce->guc_active.lock when unwinding contextMatthew Brost1-4/+0
Don't drop ce->guc_active.lock when unwinding a context after reset. At one point we had to drop this because of a lock inversion but that is no longer the case. It is much safer to hold the lock so let's do that. Fixes: eb5e7da736f3 ("drm/i915/guc: Reset implementation for new GuC interface") Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: Matthew Brost <[email protected]> Cc: <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Unwind context requests in reverse orderMatthew Brost1-4/+4
When unwinding requests on a reset context, if other requests in the context are in the priority list the requests could be resubmitted out of seqno order. Traverse the list of active requests in reverse and append to the head of the priority list to fix this. Fixes: eb5e7da736f3 ("drm/i915/guc: Reset implementation for new GuC interface") Signed-off-by: Matthew Brost <[email protected]> Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Cc: <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Fix outstanding G2H accountingMatthew Brost1-42/+37
A small race that could result in incorrect accounting of the number of outstanding G2H. Basically prior to this patch we did not increment the number of outstanding G2H if we encoutered a GT reset while sending a H2G. This was incorrect as the context state had already been updated to anticipate a G2H response thus the counter should be incremented. As part of this change we remove a legacy (now unused) path that was the last caller requiring a G2H response that was not guaranteed to loop. This allows us to simplify the accounting as we don't need to handle the case where the send fails due to the channel being busy. Also always use helper when decrementing this value. v2 (Daniele): update GEM_BUG_ON check, pull in dead code removal from later patch, remove loop param from context_deregister. Fixes: f4eb1f3fe946 ("drm/i915/guc: Ensure G2H response has space in buffer") Signed-off-by: Matthew Brost <[email protected]> Signed-off-by: Daniele Ceraolo Spurio <[email protected]> Cc: <[email protected]> Reviewed-by: John Harrison <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-13drm/i915/guc: Fix blocked context accountingMatthew Brost1-1/+1
Prior to this patch the blocked context counter was cleared on init_sched_state (used during registering a context & resets) which is incorrect. This state needs to be persistent or the counter can read the incorrect value resulting in scheduling never getting enabled again. Fixes: 62eaf0ae217d ("drm/i915/guc: Support request cancellation") Signed-off-by: Matthew Brost <[email protected]> Reviewed-by: Daniel Vetter <[email protected]> Cc: <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2021-09-12Linux 5.15-rc1Linus Torvalds1-2/+2
2021-09-12Merge tag 'perf-tools-for-v5.15-2021-09-11' of ↵Linus Torvalds36-175/+1147
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull more perf tools updates from Arnaldo Carvalho de Melo: - Add missing fields and remove some duplicate fields when printing a perf_event_attr. - Fix hybrid config terms list corruption. - Update kernel header copies, some resulted in new kernel features being automagically added to 'perf trace' syscall/tracepoint argument id->string translators. - Add a file generated during the documentation build to .gitignore. - Add an option to build without libbfd, as some distros, like Debian consider its ABI unstable. - Add support to print a textual representation of IBS raw sample data in 'perf report'. - Fix bpf 'perf test' sample mismatch reporting - Fix passing arguments to stackcollapse report in a 'perf script' python script. - Allow build-id with trailing zeros. - Look for ImageBase in PE file to compute .text offset. * tag 'perf-tools-for-v5.15-2021-09-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (25 commits) tools headers UAPI: Update tools's copy of drm.h headers tools headers UAPI: Sync drm/i915_drm.h with the kernel sources tools headers UAPI: Sync linux/fs.h with the kernel sources tools headers UAPI: Sync linux/in.h copy with the kernel sources perf tools: Add an option to build without libbfd perf tools: Allow build-id with trailing zeros perf tools: Fix hybrid config terms list corruption perf tools: Factor out copy_config_terms() and free_config_terms() perf tools: Fix perf_event_attr__fprintf() missing/dupl. fields perf tools: Ignore Documentation dependency file perf bpf: Provide a weak btf__load_from_kernel_by_id() for older libbpf versions tools include UAPI: Update linux/mount.h copy perf beauty: Cover more flags in the move_mount syscall argument beautifier tools headers UAPI: Sync linux/prctl.h with the kernel sources tools include UAPI: Sync sound/asound.h copy with the kernel sources tools headers UAPI: Sync linux/kvm.h with the kernel sources tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources perf report: Add support to print a textual representation of IBS raw sample data perf report: Add tools/arch/x86/include/asm/amd-ibs.h perf env: Add perf_env__cpuid, perf_env__{nr_}pmu_mappings ...
2021-09-12Merge tag 'compiler-attributes-for-linus-v5.15-rc1-v2' of ↵Linus Torvalds4-9/+26
git://github.com/ojeda/linux Pull compiler attributes updates from Miguel Ojeda: - Fix __has_attribute(__no_sanitize_coverage__) for GCC 4 (Marco Elver) - Add Nick as Reviewer for compiler_attributes.h (Nick Desaulniers) - Move __compiletime_{error|warning} (Nick Desaulniers) * tag 'compiler-attributes-for-linus-v5.15-rc1-v2' of git://github.com/ojeda/linux: compiler_attributes.h: move __compiletime_{error|warning} MAINTAINERS: add Nick as Reviewer for compiler_attributes.h Compiler Attributes: fix __has_attribute(__no_sanitize_coverage__) for GCC 4
2021-09-12Merge tag 'auxdisplay-for-linus-v5.15-rc1' of git://github.com/ojeda/linuxLinus Torvalds5-21/+36
Pull auxdisplay updates from Miguel Ojeda: "An assortment of improvements for auxdisplay: - Replace symbolic permissions with octal permissions (Jinchao Wang) - ks0108: Switch to use module_parport_driver() (Andy Shevchenko) - charlcd: Drop unneeded initializers and switch to C99 style (Andy Shevchenko) - hd44780: Fix oops on module unloading (Lars Poeschel) - Add I2C gpio expander example (Ralf Schlatterbeck)" * tag 'auxdisplay-for-linus-v5.15-rc1' of git://github.com/ojeda/linux: auxdisplay: Replace symbolic permissions with octal permissions auxdisplay: ks0108: Switch to use module_parport_driver() auxdisplay: charlcd: Drop unneeded initializers and switch to C99 style auxdisplay: hd44780: Fix oops on module unloading auxdisplay: Add I2C gpio expander example
2021-09-12Merge tag 'smp-urgent-2021-09-12' of ↵Linus Torvalds8-165/+598
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull CPU hotplug updates from Thomas Gleixner: "Updates for the SMP and CPU hotplug: - Remove DEFINE_SMP_CALL_CACHE_FUNCTION() which is a left over of the original hotplug code and now causing trouble with the ARM64 cache topology setup due to the pointless SMP function call. It's not longer required as the hotplug callbacks are guaranteed to be invoked on the upcoming CPU. - Remove the deprecated and now unused CPU hotplug functions - Rewrite the CPU hotplug API documentation" * tag 'smp-urgent-2021-09-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Documentation: core-api/cpuhotplug: Rewrite the API section cpu/hotplug: Remove deprecated CPU-hotplug functions. thermal: Replace deprecated CPU-hotplug functions. drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION()
2021-09-12Merge tag 'char-misc-5.15-rc1-lkdtm' of ↵Linus Torvalds2-11/+27
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull misc driver fix from Greg KH: "Here is a single patch for 5.15-rc1, for the lkdtm misc driver. It resolves a build issue that many people were hitting with your current tree, and Kees and others felt would be good to get merged before -rc1 comes out, to prevent them from having to constantly hit it as many development trees restart on -rc1, not older -rc releases. It has NOT been in linux-next, but has passed 0-day testing and looks 'obviously correct' when reviewing it locally :)" * tag 'char-misc-5.15-rc1-lkdtm' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: lkdtm: Use init_uts_ns.name instead of macros
2021-09-12Merge tag 'for-linus-5.15-1' of git://github.com/cminyard/linux-ipmiLinus Torvalds1-12/+11
Pull IPMI updates from Corey Minyard: "A couple of very minor fixes for style and rate limiting. Nothing big, but probably needs to go in" * tag 'for-linus-5.15-1' of git://github.com/cminyard/linux-ipmi: char: ipmi: use DEVICE_ATTR helper macro ipmi: rate limit ipmi smi_event failure message
2021-09-12Merge tag 'sched_urgent_for_v5.15_rc1' of ↵Linus Torvalds2-5/+5
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Borislav Petkov: - Make sure the idle timer expires in hardirq context, on PREEMPT_RT - Make sure the run-queue balance callback is invoked only on the outgoing CPU * tag 'sched_urgent_for_v5.15_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Prevent balance_push() on remote runqueues sched/idle: Make the idle timer expire in hard interrupt context
2021-09-12Merge tag 'locking_urgent_for_v5.15_rc1' of ↵Linus Torvalds4-94/+120
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fixes from Borislav Petkov: - Fix the futex PI requeue machinery to not return to userspace in inconsistent state - Avoid a potential null pointer dereference in the ww_mutex deadlock check - Other smaller cleanups and optimizations * tag 'locking_urgent_for_v5.15_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/rtmutex: Fix ww_mutex deadlock check futex: Remove unused variable 'vpid' in futex_proxy_trylock_atomic() futex: Avoid redundant task lookup futex: Clarify comment for requeue_pi_wake_futex() futex: Prevent inconsistent state and exit race futex: Return error code instead of assigning it without effect locking/rwsem: Add missing __init_rwsem() for PREEMPT_RT
2021-09-12Merge tag 'timers_urgent_for_v5.15_rc1' of ↵Linus Torvalds1-2/+7
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fix from Borislav Petkov: - Handle negative second values properly when converting a timespec64 to nanoseconds. * tag 'timers_urgent_for_v5.15_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: time: Handle negative seconds correctly in timespec64_to_ns()
2021-09-12Merge branch 'misc.namei' of ↵Linus Torvalds2-59/+58
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull namei updates from Al Viro: "Clearing fallout from mkdirat in io_uring series. The fix in the kern_path_locked() patch plus associated cleanups" * 'misc.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: putname(): IS_ERR_OR_NULL() is wrong here namei: Standardize callers of filename_create() namei: Standardize callers of filename_lookup() rename __filename_parentat() to filename_parentat() namei: Fix use after free in kern_path_locked
2021-09-12Merge tag '5.15-rc-cifs-part2' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds12-21/+37
Pull smbfs updates from Steve French: "cifs/smb3 updates: - DFS reconnect fix - begin creating common headers for server and client - rename the cifs_common directory to smbfs_common to be more consistent ie change use of the name cifs to smb (smb3 or smbfs is more accurate, as the very old cifs dialect has long been superseded by smb3 dialects). In the future we can rename the fs/cifs directory to fs/smbfs. This does not include the set of multichannel fixes nor the two deferred close fixes (they are still being reviewed and tested)" * tag '5.15-rc-cifs-part2' of git://git.samba.org/sfrench/cifs-2.6: cifs: properly invalidate cached root handle when closing it cifs: move SMB FSCTL definitions to common code cifs: rename cifs_common to smbfs_common cifs: update FSCTL definitions
2021-09-11Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds41-325/+4127
Pull virtio updates from Michael Tsirkin: - vduse driver ("vDPA Device in Userspace") supporting emulated virtio block devices - virtio-vsock support for end of record with SEQPACKET - vdpa: mac and mq support for ifcvf and mlx5 - vdpa: management netlink for ifcvf - virtio-i2c, gpio dt bindings - misc fixes and cleanups * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (39 commits) Documentation: Add documentation for VDUSE vduse: Introduce VDUSE - vDPA Device in Userspace vduse: Implement an MMU-based software IOTLB vdpa: Support transferring virtual addressing during DMA mapping vdpa: factor out vhost_vdpa_pa_map() and vhost_vdpa_pa_unmap() vdpa: Add an opaque pointer for vdpa_config_ops.dma_map() vhost-iotlb: Add an opaque pointer for vhost IOTLB vhost-vdpa: Handle the failure of vdpa_reset() vdpa: Add reset callback in vdpa_config_ops vdpa: Fix some coding style issues file: Export receive_fd() to modules eventfd: Export eventfd_wake_count to modules iova: Export alloc_iova_fast() and free_iova_fast() virtio-blk: remove unneeded "likely" statements virtio-balloon: Use virtio_find_vqs() helper vdpa: Make use of PFN_PHYS/PFN_UP/PFN_DOWN helper macro vsock_test: update message bounds test for MSG_EOR af_vsock: rename variables in receive loop virtio/vsock: support MSG_EOR bit processing vhost/vsock: support MSG_EOR bit processing ...
2021-09-11Merge tag 'riscv-for-linus-5.15-mw1' of ↵Linus Torvalds10-15/+22
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull more RISC-V updates from Palmer Dabbelt: - A pair of defconfig additions, for NVMe and the EFI filesystem localization options. - A larger address space for stack randomization. - A cleanup to our install rules. - A DTS update for the Microchip Icicle board, to fix the serial console. - Support for build-time table sorting, which allows us to have __ex_table read-only. * tag 'riscv-for-linus-5.15-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: Move EXCEPTION_TABLE to RO_DATA segment riscv: Enable BUILDTIME_TABLE_SORT riscv: dts: microchip: mpfs-icicle: Fix serial console riscv: move the (z)install rules to arch/riscv/Makefile riscv: Improve stack randomisation on RV64 riscv: defconfig: enable NLS_CODEPAGE_437, NLS_ISO8859_1 riscv: defconfig: enable BLK_DEV_NVME
2021-09-11Merge branch 'for-5.15' of ↵Linus Torvalds2-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux Pull coccinelle updates from Julia Lawall: "These changes update some existing semantic patches with respect to some recent changes in the kernel. Specifically, the change to kvmalloc.cocci searches for kfree_sensitive rather than kzfree, and the change to use_after_iter.cocci adds list_entry_is_head as a valid use of a list iterator index variable after the end of the loop" * 'for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux: scripts: coccinelle: allow list_entry_is_head() to use pos coccinelle: api: rename kzfree to kfree_sensitive
2021-09-11tools headers UAPI: Update tools's copy of drm.h headersArnaldo Carvalho de Melo1-2/+12
Picking the changes from: 17ce9c61c71cbc0d ("drm: document DRM_IOCTL_MODE_RMFB") Doesn't result in any tooling changes: $ tools/perf/trace/beauty/drm_ioctl.sh > before $ cp include/uapi/drm/drm.h tools/include/uapi/drm/drm.h $ tools/perf/trace/beauty/drm_ioctl.sh > after $ diff -u before after Silencing these perf build warnings: Warning: Kernel ABI header at 'tools/include/uapi/drm/drm.h' differs from latest version at 'include/uapi/drm/drm.h' diff -u tools/include/uapi/drm/drm.h include/uapi/drm/drm.h Cc: Simon Ser <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-09-11tools headers UAPI: Sync drm/i915_drm.h with the kernel sourcesArnaldo Carvalho de Melo1-81/+417
To pick the changes in: b65a9489730a2494 ("drm/i915/userptr: Probe existence of backing struct pages upon creation") ee242ca704d38699 ("drm/i915/guc: Implement GuC priority management") 81340cf3bddded4f ("drm/i915/uapi: reject set_domain for discrete") 7961c5b60f23dff5 ("drm/i915: Add TTM offset argument to mmap.") aef7b67a79564f6c ("drm/i915/uapi: convert drm_i915_gem_userptr to kernel doc") e7737b67ab46ee0e ("drm/i915/uapi: reject caching ioctls for discrete") 3aa8c57fe25a9247 ("drm/i915/uapi: convert drm_i915_gem_set_domain to kernel doc") 289f5a72009b8f67 ("drm/i915/uapi: convert drm_i915_gem_caching to kernel doc") 4a766ae40ec83301 ("drm/i915: Drop the CONTEXT_CLONE API (v2)") 6ff6d61dd2a943bd ("drm/i915: Drop I915_CONTEXT_PARAM_NO_ZEROMAP") fe4751c3d513ff4f ("drm/i915: Drop I915_CONTEXT_PARAM_RINGSIZE") 577729533cdc4e37 ("drm/i915: Document the Virtual Engine uAPI") c649432e86ca677d ("drm/i915: Fix busy ioctl commentary") That doesn't result in any changes to tooling as no new ioctl were added (at least not perceived by tools/perf/trace/beauty/drm_ioctl.sh). Addressing this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h' diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h Cc: Chris Wilson <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Jason Ekstrand <[email protected]> Cc: John Harrison <[email protected]> Cc: Maarten Lankhorst <[email protected]> Cc: Matthew Auld <[email protected]> Cc: Matthew Brost <[email protected]> Cc: Tvrtko Ursulin <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-09-11tools headers UAPI: Sync linux/fs.h with the kernel sourcesArnaldo Carvalho de Melo1-0/+1
To pick the change in: 7957d93bf32bc211 ("block: add ioctl to read the disk sequence number") It adds a new ioctl, but we are still not using that to generate tables for 'perf trace', so no changes in tooling. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/fs.h' differs from latest version at 'include/uapi/linux/fs.h' diff -u tools/include/uapi/linux/fs.h include/uapi/linux/fs.h Cc: Jens Axboe <[email protected]> Cc: Matteo Croce <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-09-11tools headers UAPI: Sync linux/in.h copy with the kernel sourcesArnaldo Carvalho de Melo1-10/+32
To pick the changes in: db243b796439c0ca ("net/ipv4/ipv6: Replace one-element arraya with flexible-array members") 2d3e5caf96b9449a ("net/ipv4: Replace one-element array with flexible-array member") That don't result in any change in tooling, the structs changed remains with the same layout. This addresses this build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/in.h' differs from latest version at 'include/uapi/linux/in.h' diff -u tools/include/uapi/linux/in.h include/uapi/linux/in.h Cc: David S. Miller <[email protected]> Cc: Gustavo A. R. Silva <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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