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6 Commits

Author SHA1 Message Date
Chris Wilson c0168a3ee6 drm/i915/gt: Check we are the Ironlake IPS provider before deregistering 
Check that we own the global pointer before deregistering.

Reported-by: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com>
Cc: Andi Shyti <andi.shyti@intel.com>
Reviewed-by: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191210153620.3929372-1-chris@chris-wilson.co.uk
 2019-12-11 10:28:56 +00:00
Daniele Ceraolo Spurio 1cdc2330e8 drm/i915/guc: Properly capture & release GuC interrupts on Gen11+ 
With the new interrupt re-partitioning in Gen11, GuC controls by itself
the interrupts it receives, so steering bits and registers have been
defeatured. Being this the case, when the GuC is in control of
submissions we won't know what to do with the ctx switch interrupt
in the driver, so disable it.

v2 (Daniele): replace the gen9 paths instead of keeping gen9 and gen11
functions since we won't support guc submission on any pre-gen11 platform.

Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191105225321.26642-1-daniele.ceraolospurio@intel.com
 2019-11-14 23:04:36 +00:00
Chris Wilson a06375a9ac drm/i915/gt: Always track callers to intel_rps_mark_interactive() 
During startup, we may find ourselves in an interesting position where
we haven't fully enabled RPS before the display starts trying to use it.
This may lead to an imbalance in our "interactive" counter:

<3>[    4.813326] intel_rps_mark_interactive:652 GEM_BUG_ON(!rps->power.interactive)
<4>[    4.813396] ------------[ cut here ]------------
<2>[    4.813398] kernel BUG at drivers/gpu/drm/i915/gt/intel_rps.c:652!
<4>[    4.813430] invalid opcode: 0000 [#1] PREEMPT SMP PTI
<4>[    4.813438] CPU: 1 PID: 18 Comm: kworker/1:0H Not tainted 5.4.0-rc5-CI-CI_DRM_7209+ #1
<4>[    4.813447] Hardware name:  /NUC7i5BNB, BIOS BNKBL357.86A.0054.2017.1025.1822 10/25/2017
<4>[    4.813525] Workqueue: events_highpri intel_atomic_cleanup_work [i915]
<4>[    4.813589] RIP: 0010:intel_rps_mark_interactive+0xb3/0xc0 [i915]
<4>[    4.813597] Code: bc 3f de e0 48 8b 35 84 2e 24 00 49 c7 c0 f3 d4 4e a0 b9 8c 02 00 00 48 c7 c2 80 9c 48 a0 48 c7 c7 3e 73 34 a0 e8 8d 3b e5 e0 <0f> 0b 90 66 2e 0f 1f 84 00 00 00 00 00 80 bf c0 00 00 00 00 74 32
<4>[    4.813616] RSP: 0018:ffffc900000efe00 EFLAGS: 00010286
<4>[    4.813623] RAX: 000000000000000e RBX: ffff8882583cc7f0 RCX: 0000000000000000
<4>[    4.813631] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff888275969c00
<4>[    4.813639] RBP: 0000000000000000 R08: 0000000000000008 R09: ffff888275ace000
<4>[    4.813646] R10: ffffc900000efe00 R11: ffff888275969c00 R12: ffff8882583cc8d8
<4>[    4.813654] R13: ffff888276abce00 R14: 0000000000000000 R15: ffff88825e878860
<4>[    4.813662] FS:  0000000000000000(0000) GS:ffff888276a80000(0000) knlGS:0000000000000000
<4>[    4.813672] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[    4.813678] CR2: 00007f051d5ca0a8 CR3: 0000000262f48001 CR4: 00000000003606e0
<4>[    4.813686] Call Trace:
<4>[    4.813755]  intel_cleanup_plane_fb+0x4e/0x60 [i915]
<4>[    4.813764]  drm_atomic_helper_cleanup_planes+0x4d/0x70
<4>[    4.813833]  intel_atomic_cleanup_work+0x15/0x80 [i915]
<4>[    4.813842]  process_one_work+0x26a/0x620
<4>[    4.813850]  worker_thread+0x37/0x380
<4>[    4.813857]  ? process_one_work+0x620/0x620
<4>[    4.813864]  kthread+0x119/0x130
<4>[    4.813870]  ? kthread_park+0x80/0x80
<4>[    4.813878]  ret_from_fork+0x3a/0x50
<4>[    4.813887] Modules linked in: i915(+) mei_hdcp x86_pkg_temp_thermal coretemp crct10dif_pclmul crc32_pclmul btusb btrtl btbcm btintel snd_hda_intel snd_intel_nhlt snd_hda_codec bluetooth snd_hwdep snd_hda_core ghash_clmulni_intel snd_pcm e1000e ecdh_generic ecc ptp pps_core mei_me mei prime_numbers
<4>[    4.813934] ---[ end trace c13289af88174ffc ]---

The solution employed is to not worry about RPS state and keep the tally
of the interactive counter separate. When we do enable RPS, we will then
take the display activity into account.

Fixes: 3e7abf8141 ("drm/i915: Extract GT render power state management")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Andi Shyti <andi.shyti@intel.com>
Acked-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191030103827.2413-1-chris@chris-wilson.co.uk
 2019-10-30 13:23:00 +00:00
Chris Wilson 5a3e2b82af drm/i915/gt: Tidy up rps irq handler to use intel_gt 
Since the rps is tied to its intel_gt, use that backpointer to find the
right engine rather than delving into i915.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191027175505.25470-1-chris@chris-wilson.co.uk
 2019-10-28 11:42:59 +00:00
Chris Wilson dd095afc88 drm/i915/rps: Flip interpretation of ips fmin/fmax to max rps 
ips uses clock delays as opposed to rps frequency bins. To fit the
delays into the same rps calculations, we need to invert the ips delays.

Fixes: 3e7abf8141 ("drm/i915: Extract GT render power state management")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Andi Shyti <andi.shyti@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191026200917.1780-1-chris@chris-wilson.co.uk
 2019-10-27 20:44:48 +00:00
Andi Shyti 3e7abf8141 drm/i915: Extract GT render power state management 
i915_irq.c is large. One reason for this is that has a large chunk of
the GT render power management stashed away in it. Extract that logic
out of i915_irq.c and intel_pm.c and put it under one roof.

Based on a patch by Chris Wilson.

Signed-off-by: Andi Shyti <andi.shyti@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191024211642.7688-1-chris@chris-wilson.co.uk
 2019-10-26 19:28:59 +01:00