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Mika Kuoppala [Wed, 15 Mar 2017 15:43:02 +0000 (17:43 +0200)]
drm/i915: Convert debugfs to use generic residency calculator
Use intel_rc6_residency to get benefit for increased resolution
in byt/chv.
v2: output raw and time (Chris)
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Mika Kuoppala [Wed, 15 Mar 2017 16:07:13 +0000 (18:07 +0200)]
drm/i915: Extend vlv/chv residency resolution
Vlv and chv residency counters are 40 bits in width.
With a control bit, we can choose between upper or lower
32 bit window into this counter.
Lets toggle this bit on and off on and read both parts.
As a result we can push the wrap from 13 seconds to 54
minutes.
v2: commit msg, loop readability, goto elimination (Chris)
v3: bug ref, divide outside runtime pm lock (Chris)
References: https://bugs.freedesktop.org/show_bug.cgi?id=94852
Reported-by: Len Brown <len.brown@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Mika Kuoppala [Wed, 15 Mar 2017 15:43:00 +0000 (17:43 +0200)]
drm/i915: Return residency as microseconds
Change the granularity from milliseconds to microseconds
when returning rc6 residencies. This is in preparation
for increased resolution on some platforms.
v2: use 64bit div macro (Chris)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Mika Kuoppala [Wed, 15 Mar 2017 15:42:59 +0000 (17:42 +0200)]
drm/i915: Move residency calculation into intel_pm.c
Plan is to make generic residency calculation utility
function for usage outside of sysfs. As a first step
move residency calculation into intel_pm.c
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Wed, 15 Mar 2017 14:01:50 +0000 (14:01 +0000)]
drm/i915/userptr: Reinvent GGTT self-faulting protection
lockdep doesn't like us taking the mm->mmap_sem inside the get_pages
callback for a couple of reasons. The straightforward deadlock:
[13755.434059] =============================================
[13755.434061] [ INFO: possible recursive locking detected ]
[13755.434064] 4.11.0-rc1-CI-CI_DRM_297+ #1 Tainted: G U
[13755.434066] ---------------------------------------------
[13755.434068] gem_userptr_bli/8398 is trying to acquire lock:
[13755.434070] (&mm->mmap_sem){++++++}, at: [<
ffffffffa00c988a>] i915_gem_userptr_get_pages+0x5a/0x2e0 [i915]
[13755.434096]
but task is already holding lock:
[13755.434098] (&mm->mmap_sem){++++++}, at: [<
ffffffff8104d485>] __do_page_fault+0x105/0x560
[13755.434105]
other info that might help us debug this:
[13755.434108] Possible unsafe locking scenario:
[13755.434110] CPU0
[13755.434111] ----
[13755.434112] lock(&mm->mmap_sem);
[13755.434115] lock(&mm->mmap_sem);
[13755.434117]
*** DEADLOCK ***
[13755.434121] May be due to missing lock nesting notation
[13755.434126] 2 locks held by gem_userptr_bli/8398:
[13755.434128] #0: (&mm->mmap_sem){++++++}, at: [<
ffffffff8104d485>] __do_page_fault+0x105/0x560
[13755.434135] #1: (&obj->mm.lock){+.+.+.}, at: [<
ffffffffa00b887d>] __i915_gem_object_get_pages+0x1d/0x70 [i915]
[13755.434156]
stack backtrace:
[13755.434161] CPU: 3 PID: 8398 Comm: gem_userptr_bli Tainted: G U 4.11.0-rc1-CI-CI_DRM_297+ #1
[13755.434165] Hardware name: GIGABYTE GB-BKi7(H)A-7500/MFLP7AP-00, BIOS F4 02/20/2017
[13755.434169] Call Trace:
[13755.434174] dump_stack+0x67/0x92
[13755.434178] __lock_acquire+0x133a/0x1b50
[13755.434182] lock_acquire+0xc9/0x220
[13755.434200] ? i915_gem_userptr_get_pages+0x5a/0x2e0 [i915]
[13755.434204] down_read+0x42/0x70
[13755.434221] ? i915_gem_userptr_get_pages+0x5a/0x2e0 [i915]
[13755.434238] i915_gem_userptr_get_pages+0x5a/0x2e0 [i915]
[13755.434255] ____i915_gem_object_get_pages+0x25/0x60 [i915]
[13755.434272] __i915_gem_object_get_pages+0x59/0x70 [i915]
[13755.434288] i915_gem_fault+0x397/0x6a0 [i915]
[13755.434304] ? i915_gem_fault+0x1a1/0x6a0 [i915]
[13755.434308] ? __lock_acquire+0x449/0x1b50
[13755.434311] ? __lock_acquire+0x449/0x1b50
[13755.434315] ? vm_mmap_pgoff+0xa9/0xd0
[13755.434318] __do_fault+0x19/0x70
[13755.434321] __handle_mm_fault+0x863/0xe50
[13755.434325] handle_mm_fault+0x17f/0x370
[13755.434329] ? handle_mm_fault+0x40/0x370
[13755.434332] __do_page_fault+0x279/0x560
[13755.434336] do_page_fault+0xc/0x10
[13755.434339] page_fault+0x22/0x30
[13755.434342] RIP: 0033:0x7f5ab91b5880
[13755.434345] RSP: 002b:
00007fff62922218 EFLAGS:
00010216
[13755.434348] RAX:
0000000000b74500 RBX:
00007f5ab7f81000 RCX:
0000000000000000
[13755.434352] RDX:
0000000000100000 RSI:
00007f5ab7f81000 RDI:
00007f5aba61c000
[13755.434355] RBP:
00007f5aba61c000 R08:
0000000000000007 R09:
0000000100000000
[13755.434359] R10:
000000000000037d R11:
00007f5ab91b5840 R12:
0000000000000001
[13755.434362] R13:
0000000000000005 R14:
0000000000000001 R15:
0000000000000000
and cyclic deadlocks:
[ 2566.458979] ======================================================
[ 2566.459054] [ INFO: possible circular locking dependency detected ]
[ 2566.459127] 4.11.0-rc1+ #26 Not tainted
[ 2566.459194] -------------------------------------------------------
[ 2566.459266] gem_streaming_w/759 is trying to acquire lock:
[ 2566.459334] (&obj->mm.lock){+.+.+.}, at: [<
ffffffffa034bc80>] i915_gem_object_pin_pages+0x0/0xc0 [i915]
[ 2566.459605]
[ 2566.459605] but task is already holding lock:
[ 2566.459699] (&mm->mmap_sem){++++++}, at: [<
ffffffff8106fd11>] __do_page_fault+0x121/0x500
[ 2566.459814]
[ 2566.459814] which lock already depends on the new lock.
[ 2566.459814]
[ 2566.459934]
[ 2566.459934] the existing dependency chain (in reverse order) is:
[ 2566.460030]
[ 2566.460030] -> #1 (&mm->mmap_sem){++++++}:
[ 2566.460139] lock_acquire+0xfe/0x220
[ 2566.460214] down_read+0x4e/0x90
[ 2566.460444] i915_gem_userptr_get_pages+0x6e/0x340 [i915]
[ 2566.460669] ____i915_gem_object_get_pages+0x8b/0xd0 [i915]
[ 2566.460900] __i915_gem_object_get_pages+0x6a/0x80 [i915]
[ 2566.461132] __i915_vma_do_pin+0x7fa/0x930 [i915]
[ 2566.461352] eb_add_vma+0x67b/0x830 [i915]
[ 2566.461572] eb_lookup_vmas+0xafe/0x1010 [i915]
[ 2566.461792] i915_gem_do_execbuffer+0x715/0x2870 [i915]
[ 2566.462012] i915_gem_execbuffer2+0x106/0x2b0 [i915]
[ 2566.462152] drm_ioctl+0x36c/0x670 [drm]
[ 2566.462236] do_vfs_ioctl+0x12c/0xa60
[ 2566.462317] SyS_ioctl+0x41/0x70
[ 2566.462399] entry_SYSCALL_64_fastpath+0x1c/0xb1
[ 2566.462477]
[ 2566.462477] -> #0 (&obj->mm.lock){+.+.+.}:
[ 2566.462587] __lock_acquire+0x1602/0x1790
[ 2566.462661] lock_acquire+0xfe/0x220
[ 2566.462893] i915_gem_object_pin_pages+0x4c/0xc0 [i915]
[ 2566.463116] i915_gem_fault+0x2c2/0x8c0 [i915]
[ 2566.463197] __do_fault+0x42/0x130
[ 2566.463276] __handle_mm_fault+0x92c/0x1280
[ 2566.463356] handle_mm_fault+0x1e2/0x440
[ 2566.463443] __do_page_fault+0x1c4/0x500
[ 2566.463529] do_page_fault+0xc/0x10
[ 2566.463613] page_fault+0x1f/0x30
[ 2566.463693]
[ 2566.463693] other info that might help us debug this:
[ 2566.463693]
[ 2566.463820] Possible unsafe locking scenario:
[ 2566.463820]
[ 2566.463918] CPU0 CPU1
[ 2566.463988] ---- ----
[ 2566.464068] lock(&mm->mmap_sem);
[ 2566.464143] lock(&obj->mm.lock);
[ 2566.464226] lock(&mm->mmap_sem);
[ 2566.464304] lock(&obj->mm.lock);
[ 2566.464378]
[ 2566.464378] *** DEADLOCK ***
[ 2566.464378]
[ 2566.464504] 1 lock held by gem_streaming_w/759:
[ 2566.464576] #0: (&mm->mmap_sem){++++++}, at: [<
ffffffff8106fd11>] __do_page_fault+0x121/0x500
[ 2566.464699]
[ 2566.464699] stack backtrace:
[ 2566.464801] CPU: 0 PID: 759 Comm: gem_streaming_w Not tainted 4.11.0-rc1+ #26
[ 2566.464881] Hardware name: GIGABYTE GB-BXBT-1900/MZBAYAB-00, BIOS F8 03/02/2016
[ 2566.464983] Call Trace:
[ 2566.465061] dump_stack+0x68/0x9f
[ 2566.465144] print_circular_bug+0x20b/0x260
[ 2566.465234] __lock_acquire+0x1602/0x1790
[ 2566.465323] ? debug_check_no_locks_freed+0x1a0/0x1a0
[ 2566.465564] ? i915_gem_object_wait+0x238/0x650 [i915]
[ 2566.465657] ? debug_lockdep_rcu_enabled.part.4+0x1a/0x30
[ 2566.465749] lock_acquire+0xfe/0x220
[ 2566.465985] ? i915_sg_trim+0x1b0/0x1b0 [i915]
[ 2566.466223] i915_gem_object_pin_pages+0x4c/0xc0 [i915]
[ 2566.466461] ? i915_sg_trim+0x1b0/0x1b0 [i915]
[ 2566.466699] i915_gem_fault+0x2c2/0x8c0 [i915]
[ 2566.466939] ? i915_gem_pwrite_ioctl+0xce0/0xce0 [i915]
[ 2566.467030] ? __lock_acquire+0x642/0x1790
[ 2566.467122] ? __lock_acquire+0x642/0x1790
[ 2566.467209] ? debug_lockdep_rcu_enabled+0x35/0x40
[ 2566.467299] ? get_unmapped_area+0x1b4/0x1d0
[ 2566.467387] __do_fault+0x42/0x130
[ 2566.467474] __handle_mm_fault+0x92c/0x1280
[ 2566.467564] ? __pmd_alloc+0x1e0/0x1e0
[ 2566.467651] ? vm_mmap_pgoff+0x160/0x190
[ 2566.467740] ? handle_mm_fault+0x111/0x440
[ 2566.467827] handle_mm_fault+0x1e2/0x440
[ 2566.467914] ? handle_mm_fault+0x5d/0x440
[ 2566.468002] __do_page_fault+0x1c4/0x500
[ 2566.468090] do_page_fault+0xc/0x10
[ 2566.468180] page_fault+0x1f/0x30
[ 2566.468263] RIP: 0033:0x557895ced32a
[ 2566.468337] RSP: 002b:
00007fffd6dd8a10 EFLAGS:
00010202
[ 2566.468419] RAX:
00007f659a4db000 RBX:
0000000000000003 RCX:
00007f659ad032da
[ 2566.468501] RDX:
0000000000000000 RSI:
0000000000100000 RDI:
0000000000000000
[ 2566.468586] RBP:
0000000000000007 R08:
0000000000000003 R09:
0000000100000000
[ 2566.468667] R10:
0000000000000001 R11:
0000000000000246 R12:
0000557895ceda60
[ 2566.468749] R13:
0000000000000001 R14:
00007fffd6dd8ac0 R15:
00007f659a4db000
By checking the status of the gup worker (serialized by the
obj->mm.lock) we can determine whether it is still active, has failed or
has succeeded. If the worker is still active (or failed), we know that
it cannot be bound and so we can skip taking struct_mutex (risking
potential recursion). As we check the worker status, we mark it to
discard any partial results, forcing us to restart on the next
get_pages.
Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Fixes:
1c8782dd313e ("drm/i915/userptr: Disallow wrapping GTT into a userptr")
Testcase: igt/gem_userptr_blits/map-fixed-invalidate-gup
Testcase: igt/gem_userptr_blits/dmabuf-sync
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170315140150.19432-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Michal Wajdeczko [Wed, 15 Mar 2017 13:37:41 +0000 (13:37 +0000)]
drm/i915: Make intel_uc_sanitize_options() more robust
After negative guc fw selection we could leave guc
submission flag still turned on. Reorder some checks
to cover this case. While here, fix info message and
return early if there is no Guc.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
[tursulin: fixup bad alignment]
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170315133741.150420-1-michal.wajdeczko@intel.com
Arkadiusz Hiler [Wed, 15 Mar 2017 13:34:15 +0000 (14:34 +0100)]
drm/i915/uc: Rename intel_uc_fw.fw to .type
This field is used to determine which kind of firmware the struct
describes (GuC/HuC) - the name does not reflect.
The enum used here have "type" in the name, so let's go with that.
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Oscar Mateo <oscar.mateo@intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170315133415.15343-1-arkadiusz.hiler@intel.com
Chris Wilson [Wed, 15 Mar 2017 22:22:59 +0000 (22:22 +0000)]
drm/i915/breadcrumbs: Tweak commentary
Tvrtko spotted a stale reference to b->lock (now b->rb_lock) so review
the comments and try to improve them in passing.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170315222259.1469-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Chris Wilson [Wed, 15 Mar 2017 21:07:26 +0000 (21:07 +0000)]
drm/i915: Only attempt to signal the request once from the interrupt handler
Check that request has not been signaled before acquiring a reference to
the request for signaling later in the interrupt handler.
The loading of the cacheline (for request->fence.flags) should be "free"
when followed by the locked increment of the request->fence.refcount
(which then sets the cacheline to exclusive mode), i.e. the cost of
test_bit prior to an atomic_inc should be negligible. This should
benefit us when we have a pile of bare breadcrumbs (interrupted execbuf)
where we may get interrupts faster than we can get rid of the
intel_wait, or if the device is too slow to run the bottom-half between
interrupts.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170315210726.12095-5-chris@chris-wilson.co.uk
Chris Wilson [Wed, 15 Mar 2017 21:07:25 +0000 (21:07 +0000)]
drm/i915/breadcrumbs: Assert that we do not shortcut the current bottom-half
We need to ensure that we always serialize updates to the bottom-half
using the breadcrumbs.irq_lock so that we don't race with a concurrent
interrupt handler. This is most important just prior to leaving the
waiter (when the intel_wait will be overwritten), so make sure we are
not the current bottom-half when skipping the irq locks.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170315210726.12095-4-chris@chris-wilson.co.uk
Chris Wilson [Wed, 15 Mar 2017 21:07:24 +0000 (21:07 +0000)]
drm/i915/breadcrumbs: Disable interrupt bottom-half first on idling
Before walking the rbtree of waiters (marking them as complete and waking
them), decouple the interrupt handler. This prevents a race between the
missed waiter waking up and removing its intel_wait (which skips
checking the lock) and the interrupt handler dereferencing the
intel_wait. (Though we do not expect to encounter waiters during idle!)
Fixes:
e1c0c91bdaec ("drm/i915: Wake up all waiters before idling")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170315210726.12095-3-chris@chris-wilson.co.uk
Chris Wilson [Wed, 15 Mar 2017 21:07:23 +0000 (21:07 +0000)]
drm/i915/breadcrumbs: Update bottom-half before marking as complete
When adding a new request to the breadcrumb rbtree, we mark all those
requests inside the rbtree that are already completed as complete. This
wakes those waiters up and allows them to skip the spinlock before
returning to userspace. If one of those is the current bottom-half and
allocated its intel_wait on the stack, it may then overwrite the
b->irq_wait upon exiting i915_wait_request() just as the interrupt handler
dereferences it.
Fixes:
56299fb7d904 ("drm/i915: Signal first fence from irq handler if complete")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170315210726.12095-2-chris@chris-wilson.co.uk
Chris Wilson [Wed, 15 Mar 2017 21:07:22 +0000 (21:07 +0000)]
drm/i915/breadcrumbs: Use booleans for intel_breadcrumbs_busy()
Since commit
9b6586ae9f6b ("drm/i915: Keep a global seqno per-engine")
converted intel_breadcrumbs_busy() to reporting a single boolean, we
need only compute a boolean internally (and not needlessly compute the
flag).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170315210726.12095-1-chris@chris-wilson.co.uk
Chris Wilson [Tue, 14 Mar 2017 17:18:40 +0000 (17:18 +0000)]
drm/i915: Extend rpm wakelock during i915_handle_error()
We take the runtime pm wakelock during i915_handle_error() to ensure
that all paths that reach the error handler keep the device awake during
the hw reads. However, we need to extend that from the reset handler to
include the earlier capture routines.
Reported-by: Antonio Argenziano <antonio.argenziano@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michel Thierry <michel.thierry@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170314171840.25706-1-chris@chris-wilson.co.uk
Reviewed-by: Michel Thierry <michel.thierry@intel.com>
Michal Wajdeczko [Tue, 14 Mar 2017 13:33:09 +0000 (13:33 +0000)]
drm/i915/guc: Use formalized struct definition for ads object
Manual pointer manipulation is error prone. Let compiler calculate
right offsets for us in case we need to change ads layout.
v2: don't call it object (Chris)
v3: restyle offset assignments (Chris)
v4: stylistic reductions
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Oscar Mateo <oscar.mateo@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170314133309.126432-1-michal.wajdeczko@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Arkadiusz Hiler [Tue, 14 Mar 2017 14:28:14 +0000 (15:28 +0100)]
drm/i915/uc: Add params for specifying firmware
`guc_firmware_path` and `huc_firmware_path` module parameters are added.
Using the parameter disables version checks and loads desired firmware
instead of the default one.
v2: make params unsafe && notice about disabled fw check (J. Lahtinen)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Arkadiusz Hiler [Tue, 14 Mar 2017 14:28:13 +0000 (15:28 +0100)]
drm/i915/uc: Separate firmware selection and preparation
intel_{h,g}uc_init_fw selects correct firmware and then triggers it's
preparation (fetch + initial parsing).
This change separates out select steps, so those can be called by
the sanitize_options().
Then, during the init_fw(), we prepare the firmware if the firmware was
selected.
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Arkadiusz Hiler [Tue, 14 Mar 2017 14:28:12 +0000 (15:28 +0100)]
drm/i915/uc: Simplify firmware path handling
Currently fw->path values can represent one of three possible states:
1) NULL - device without the uC
2) '\0' - device with the uC but have no firmware
3) else - device with the uC and we have firmware
Second case is used only to WARN at a later stage.
We can WARN right away and merge cases 1 and 2.
Code can be even further simplified and common (HuC/GuC logic) happening
right before the fetch can be offloaded to the common function.
v2: fewer temporary variables, more straightforward flow (M. Wajdeczko)
v3: DRM_ERROR instead of WARN (M. Wajdeczko)
v4: coding standard (J. Lahtinen)
v5: non-trivial rebase
v6: remove path check, we are checking fetch status (M. Wajdeczko)
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Arkadiusz Hiler [Tue, 14 Mar 2017 14:28:11 +0000 (15:28 +0100)]
drm/i915/guc: Simplify intel_guc_init_hw()
Current version of intel_guc_init_hw() does a lot:
- cares about submission
- loads huc
- implement WA
This change offloads some of the logic to intel_uc_init_hw(), which now
cares about the above.
v2: rename guc_hw_reset and fix typo in define name (M. Wajdeczko)
v3: rename once again
v4: remove spurious comments and add some style (J. Lahtinen)
v5: flow changes, got rid of dead checks (M. Wajdeczko)
v6: rebase
v7: rebase & onion teardown (J. Lahtinen)
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Arkadiusz Hiler [Tue, 14 Mar 2017 14:28:10 +0000 (15:28 +0100)]
drm/i915/guc: Extract param logic form guc_init_fw()
Let intel_guc_init_fw() focus on determining and fetching the correct
firmware.
This patch introduces intel_uc_sanitize_options() that is called from
intel_sanitize_options().
Then, if we have GuC, we can call intel_guc_init_fw() conditionally
and we do not have to do the internal checks.
v2: fix comment, notify when nuking GuC explicitly enabled (M. Wajdeczko)
v3: fix comment again, change the nuke message (M. Wajdeczko)
v4: update title to reflect new function name + rebase
v5: text && remove 2 uneccessary checks (M. Wajdeczko)
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Arkadiusz Hiler [Tue, 14 Mar 2017 14:28:09 +0000 (15:28 +0100)]
drm/i915/uc: Introduce intel_uc_init_fw()
Instead of calling intel_guc_init() and intel_huc_init() one by one this
patch introduces intel_uc_init_fw() function that calls them both.
Called functions are renamed accordingly.
Trying to have subject_verb_object ordering and more descriptive names,
the intel_huc_init() and intel_guc_init() functions are renamed.
For guc_init():
* `intel_guc` is the subject, so those functions now take intel_guc
structure, instead of the dev_priv
* init is the verb
* fw is the object which better describes the function's role
huc_init() change follows the same reasoning.
v2: settle on intel_uc_fetch_fw name (M. Wajdeczko)
v3: yet another rename - intel_uc_init_fw (J. Lahtinen)
v4: non-trivial rebase
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Arkadiusz Hiler [Tue, 14 Mar 2017 14:28:08 +0000 (15:28 +0100)]
drm/i915/uc: Move intel_uc_fw_fetch() to intel_uc.c
The file fits better.
Additionally rename it to intel_uc_prepare_fw(), as the function does
more than simple fetch.
`obj` cleanup in the function is also fixed (i.e. removed). In the fail
scenario it was always 'put' but there's no possible flow that
initializes the obj properly and then goes to the fail label.
v2: remove second declaration, reorder (M. Wajdeczko)
v3: non-trivial rebase
v4: remove obj cleanup in the fail scenario (C. Wilson)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Arkadiusz Hiler [Tue, 14 Mar 2017 14:28:07 +0000 (15:28 +0100)]
drm/i915/uc: Rename intel_?uc_{setup, load}() to _init_hw()
GuC historically has two "startup" functions called _init() and _setup()
Then HuC came with it's _init() and _load().
This commit renames intel_guc_setup() and intel_huc_load() to
*uc_init_hw() as they called from the i915_gem_init_hw().
The aim is to be consistent in that entry points called during
particular driver init phases (e.g. init_hw) are all suffixed by that
phase. When reading the leaf functions, it should be clear at what stage
during the driver load it is called and therefore what operations are
legal at that point.
Also, since the functions start with intel_guc and intel_huc they take
appropiate structure.
v2: commit message update (Chris Wilson)
v3: change taken parameters to be more "semantic" (M. Wajdeczko)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Arkadiusz Hiler [Tue, 14 Mar 2017 14:28:06 +0000 (15:28 +0100)]
drm/i915/huc: Add huc_to_i915
Used to obtain "dev_priv" from huc struct pointer.
We already have similar thing for guc.
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Arkadiusz Hiler [Tue, 14 Mar 2017 14:28:05 +0000 (15:28 +0100)]
drm/i915/uc: Drop superfluous externs in intel_uc.h
Externs are implicit and we generally try to avoid them.
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Chris Wilson [Tue, 14 Mar 2017 11:50:19 +0000 (11:50 +0000)]
drm/i915: Avoid rcu_barrier() from reclaim paths (shrinker)
The rcu_barrier() takes the cpu_hotplug mutex which itself is not
reclaim-safe, and so rcu_barrier() is illegal from inside the shrinker.
[ 309.661373] =========================================================
[ 309.661376] [ INFO: possible irq lock inversion dependency detected ]
[ 309.661380] 4.11.0-rc1-CI-CI_DRM_2333+ #1 Tainted: G W
[ 309.661383] ---------------------------------------------------------
[ 309.661386] gem_exec_gttfil/6435 just changed the state of lock:
[ 309.661389] (rcu_preempt_state.barrier_mutex){+.+.-.}, at: [<
ffffffff81100731>] _rcu_barrier+0x31/0x160
[ 309.661399] but this lock took another, RECLAIM_FS-unsafe lock in the past:
[ 309.661402] (cpu_hotplug.lock){+.+.+.}
[ 309.661404]
and interrupts could create inverse lock ordering between them.
[ 309.661410]
other info that might help us debug this:
[ 309.661414] Possible interrupt unsafe locking scenario:
[ 309.661417] CPU0 CPU1
[ 309.661419] ---- ----
[ 309.661421] lock(cpu_hotplug.lock);
[ 309.661425] local_irq_disable();
[ 309.661432] lock(rcu_preempt_state.barrier_mutex);
[ 309.661441] lock(cpu_hotplug.lock);
[ 309.661446] <Interrupt>
[ 309.661448] lock(rcu_preempt_state.barrier_mutex);
[ 309.661453]
*** DEADLOCK ***
[ 309.661460] 4 locks held by gem_exec_gttfil/6435:
[ 309.661464] #0: (sb_writers#10){.+.+.+}, at: [<
ffffffff8120d83d>] vfs_write+0x17d/0x1f0
[ 309.661475] #1: (debugfs_srcu){......}, at: [<
ffffffff81320491>] debugfs_use_file_start+0x41/0xa0
[ 309.661486] #2: (&attr->mutex){+.+.+.}, at: [<
ffffffff8123a3e7>] simple_attr_write+0x37/0xe0
[ 309.661495] #3: (&dev->struct_mutex){+.+.+.}, at: [<
ffffffffa0091b4a>] i915_drop_caches_set+0x3a/0x150 [i915]
[ 309.661540]
the shortest dependencies between 2nd lock and 1st lock:
[ 309.661547] -> (cpu_hotplug.lock){+.+.+.} ops: 829 {
[ 309.661553] HARDIRQ-ON-W at:
[ 309.661560] __lock_acquire+0x5e5/0x1b50
[ 309.661565] lock_acquire+0xc9/0x220
[ 309.661572] __mutex_lock+0x6e/0x990
[ 309.661576] mutex_lock_nested+0x16/0x20
[ 309.661583] get_online_cpus+0x61/0x80
[ 309.661590] kmem_cache_create+0x25/0x1d0
[ 309.661596] debug_objects_mem_init+0x30/0x249
[ 309.661602] start_kernel+0x341/0x3fe
[ 309.661607] x86_64_start_reservations+0x2a/0x2c
[ 309.661612] x86_64_start_kernel+0x173/0x186
[ 309.661619] verify_cpu+0x0/0xfc
[ 309.661622] SOFTIRQ-ON-W at:
[ 309.661627] __lock_acquire+0x611/0x1b50
[ 309.661632] lock_acquire+0xc9/0x220
[ 309.661636] __mutex_lock+0x6e/0x990
[ 309.661641] mutex_lock_nested+0x16/0x20
[ 309.661646] get_online_cpus+0x61/0x80
[ 309.661650] kmem_cache_create+0x25/0x1d0
[ 309.661655] debug_objects_mem_init+0x30/0x249
[ 309.661660] start_kernel+0x341/0x3fe
[ 309.661664] x86_64_start_reservations+0x2a/0x2c
[ 309.661669] x86_64_start_kernel+0x173/0x186
[ 309.661674] verify_cpu+0x0/0xfc
[ 309.661677] RECLAIM_FS-ON-W at:
[ 309.661682] mark_held_locks+0x6f/0xa0
[ 309.661687] lockdep_trace_alloc+0xb3/0x100
[ 309.661693] kmem_cache_alloc_trace+0x31/0x2e0
[ 309.661699] __smpboot_create_thread.part.1+0x27/0xe0
[ 309.661704] smpboot_create_threads+0x61/0x90
[ 309.661709] cpuhp_invoke_callback+0x9c/0x8a0
[ 309.661713] cpuhp_up_callbacks+0x31/0xb0
[ 309.661718] _cpu_up+0x7a/0xc0
[ 309.661723] do_cpu_up+0x5f/0x80
[ 309.661727] cpu_up+0xe/0x10
[ 309.661734] smp_init+0x71/0xb3
[ 309.661738] kernel_init_freeable+0x94/0x19e
[ 309.661743] kernel_init+0x9/0xf0
[ 309.661748] ret_from_fork+0x2e/0x40
[ 309.661752] INITIAL USE at:
[ 309.661757] __lock_acquire+0x234/0x1b50
[ 309.661761] lock_acquire+0xc9/0x220
[ 309.661766] __mutex_lock+0x6e/0x990
[ 309.661771] mutex_lock_nested+0x16/0x20
[ 309.661775] get_online_cpus+0x61/0x80
[ 309.661780] __cpuhp_setup_state+0x44/0x170
[ 309.661785] page_alloc_init+0x23/0x3a
[ 309.661790] start_kernel+0x124/0x3fe
[ 309.661794] x86_64_start_reservations+0x2a/0x2c
[ 309.661799] x86_64_start_kernel+0x173/0x186
[ 309.661804] verify_cpu+0x0/0xfc
[ 309.661807] }
[ 309.661813] ... key at: [<
ffffffff81e37690>] cpu_hotplug+0xb0/0x100
[ 309.661817] ... acquired at:
[ 309.661821] lock_acquire+0xc9/0x220
[ 309.661825] __mutex_lock+0x6e/0x990
[ 309.661829] mutex_lock_nested+0x16/0x20
[ 309.661833] get_online_cpus+0x61/0x80
[ 309.661837] _rcu_barrier+0x9f/0x160
[ 309.661841] rcu_barrier+0x10/0x20
[ 309.661847] netdev_run_todo+0x5f/0x310
[ 309.661852] rtnl_unlock+0x9/0x10
[ 309.661856] default_device_exit_batch+0x133/0x150
[ 309.661862] ops_exit_list.isra.0+0x4d/0x60
[ 309.661866] cleanup_net+0x1d8/0x2c0
[ 309.661872] process_one_work+0x1f4/0x6d0
[ 309.661876] worker_thread+0x49/0x4a0
[ 309.661881] kthread+0x107/0x140
[ 309.661884] ret_from_fork+0x2e/0x40
[ 309.661890] -> (rcu_preempt_state.barrier_mutex){+.+.-.} ops: 179 {
[ 309.661896] HARDIRQ-ON-W at:
[ 309.661901] __lock_acquire+0x5e5/0x1b50
[ 309.661905] lock_acquire+0xc9/0x220
[ 309.661910] __mutex_lock+0x6e/0x990
[ 309.661914] mutex_lock_nested+0x16/0x20
[ 309.661919] _rcu_barrier+0x31/0x160
[ 309.661923] rcu_barrier+0x10/0x20
[ 309.661928] netdev_run_todo+0x5f/0x310
[ 309.661932] rtnl_unlock+0x9/0x10
[ 309.661936] default_device_exit_batch+0x133/0x150
[ 309.661941] ops_exit_list.isra.0+0x4d/0x60
[ 309.661946] cleanup_net+0x1d8/0x2c0
[ 309.661951] process_one_work+0x1f4/0x6d0
[ 309.661955] worker_thread+0x49/0x4a0
[ 309.661960] kthread+0x107/0x140
[ 309.661964] ret_from_fork+0x2e/0x40
[ 309.661968] SOFTIRQ-ON-W at:
[ 309.661972] __lock_acquire+0x611/0x1b50
[ 309.661977] lock_acquire+0xc9/0x220
[ 309.661981] __mutex_lock+0x6e/0x990
[ 309.661986] mutex_lock_nested+0x16/0x20
[ 309.661990] _rcu_barrier+0x31/0x160
[ 309.661995] rcu_barrier+0x10/0x20
[ 309.661999] netdev_run_todo+0x5f/0x310
[ 309.662003] rtnl_unlock+0x9/0x10
[ 309.662008] default_device_exit_batch+0x133/0x150
[ 309.662013] ops_exit_list.isra.0+0x4d/0x60
[ 309.662017] cleanup_net+0x1d8/0x2c0
[ 309.662022] process_one_work+0x1f4/0x6d0
[ 309.662027] worker_thread+0x49/0x4a0
[ 309.662031] kthread+0x107/0x140
[ 309.662035] ret_from_fork+0x2e/0x40
[ 309.662039] IN-RECLAIM_FS-W at:
[ 309.662043] __lock_acquire+0x638/0x1b50
[ 309.662048] lock_acquire+0xc9/0x220
[ 309.662053] __mutex_lock+0x6e/0x990
[ 309.662058] mutex_lock_nested+0x16/0x20
[ 309.662062] _rcu_barrier+0x31/0x160
[ 309.662067] rcu_barrier+0x10/0x20
[ 309.662089] i915_gem_shrink_all+0x33/0x40 [i915]
[ 309.662109] i915_drop_caches_set+0x141/0x150 [i915]
[ 309.662114] simple_attr_write+0xc7/0xe0
[ 309.662119] full_proxy_write+0x4f/0x70
[ 309.662124] __vfs_write+0x23/0x120
[ 309.662128] vfs_write+0xc6/0x1f0
[ 309.662133] SyS_write+0x44/0xb0
[ 309.662138] entry_SYSCALL_64_fastpath+0x1c/0xb1
[ 309.662142] INITIAL USE at:
[ 309.662147] __lock_acquire+0x234/0x1b50
[ 309.662151] lock_acquire+0xc9/0x220
[ 309.662156] __mutex_lock+0x6e/0x990
[ 309.662160] mutex_lock_nested+0x16/0x20
[ 309.662165] _rcu_barrier+0x31/0x160
[ 309.662169] rcu_barrier+0x10/0x20
[ 309.662174] netdev_run_todo+0x5f/0x310
[ 309.662178] rtnl_unlock+0x9/0x10
[ 309.662183] default_device_exit_batch+0x133/0x150
[ 309.662188] ops_exit_list.isra.0+0x4d/0x60
[ 309.662192] cleanup_net+0x1d8/0x2c0
[ 309.662197] process_one_work+0x1f4/0x6d0
[ 309.662202] worker_thread+0x49/0x4a0
[ 309.662206] kthread+0x107/0x140
[ 309.662210] ret_from_fork+0x2e/0x40
[ 309.662214] }
[ 309.662220] ... key at: [<
ffffffff81e4e1c8>] rcu_preempt_state+0x508/0x780
[ 309.662225] ... acquired at:
[ 309.662229] check_usage_forwards+0x12b/0x130
[ 309.662233] mark_lock+0x360/0x6f0
[ 309.662237] __lock_acquire+0x638/0x1b50
[ 309.662241] lock_acquire+0xc9/0x220
[ 309.662245] __mutex_lock+0x6e/0x990
[ 309.662249] mutex_lock_nested+0x16/0x20
[ 309.662253] _rcu_barrier+0x31/0x160
[ 309.662257] rcu_barrier+0x10/0x20
[ 309.662279] i915_gem_shrink_all+0x33/0x40 [i915]
[ 309.662298] i915_drop_caches_set+0x141/0x150 [i915]
[ 309.662303] simple_attr_write+0xc7/0xe0
[ 309.662307] full_proxy_write+0x4f/0x70
[ 309.662311] __vfs_write+0x23/0x120
[ 309.662315] vfs_write+0xc6/0x1f0
[ 309.662319] SyS_write+0x44/0xb0
[ 309.662323] entry_SYSCALL_64_fastpath+0x1c/0xb1
[ 309.662329]
stack backtrace:
[ 309.662335] CPU: 1 PID: 6435 Comm: gem_exec_gttfil Tainted: G W 4.11.0-rc1-CI-CI_DRM_2333+ #1
[ 309.662342] Hardware name: Hewlett-Packard HP Compaq 8100 Elite SFF PC/304Ah, BIOS 786H1 v01.13 07/14/2011
[ 309.662348] Call Trace:
[ 309.662354] dump_stack+0x67/0x92
[ 309.662359] print_irq_inversion_bug.part.19+0x1a4/0x1b0
[ 309.662365] check_usage_forwards+0x12b/0x130
[ 309.662369] mark_lock+0x360/0x6f0
[ 309.662374] ? print_shortest_lock_dependencies+0x1a0/0x1a0
[ 309.662379] __lock_acquire+0x638/0x1b50
[ 309.662383] ? __mutex_unlock_slowpath+0x3e/0x2e0
[ 309.662388] ? trace_hardirqs_on+0xd/0x10
[ 309.662392] ? _rcu_barrier+0x31/0x160
[ 309.662396] lock_acquire+0xc9/0x220
[ 309.662400] ? _rcu_barrier+0x31/0x160
[ 309.662404] ? _rcu_barrier+0x31/0x160
[ 309.662409] __mutex_lock+0x6e/0x990
[ 309.662412] ? _rcu_barrier+0x31/0x160
[ 309.662416] ? _rcu_barrier+0x31/0x160
[ 309.662421] ? synchronize_rcu_expedited+0x35/0xb0
[ 309.662426] ? _raw_spin_unlock_irqrestore+0x52/0x60
[ 309.662434] mutex_lock_nested+0x16/0x20
[ 309.662438] _rcu_barrier+0x31/0x160
[ 309.662442] rcu_barrier+0x10/0x20
[ 309.662464] i915_gem_shrink_all+0x33/0x40 [i915]
[ 309.662484] i915_drop_caches_set+0x141/0x150 [i915]
[ 309.662489] simple_attr_write+0xc7/0xe0
[ 309.662494] full_proxy_write+0x4f/0x70
[ 309.662498] __vfs_write+0x23/0x120
[ 309.662503] ? rcu_read_lock_sched_held+0x75/0x80
[ 309.662507] ? rcu_sync_lockdep_assert+0x2a/0x50
[ 309.662512] ? __sb_start_write+0x102/0x210
[ 309.662516] ? vfs_write+0x17d/0x1f0
[ 309.662520] vfs_write+0xc6/0x1f0
[ 309.662524] ? trace_hardirqs_on_caller+0xe7/0x200
[ 309.662529] SyS_write+0x44/0xb0
[ 309.662533] entry_SYSCALL_64_fastpath+0x1c/0xb1
[ 309.662537] RIP: 0033:0x7f507eac24a0
[ 309.662541] RSP: 002b:
00007fffda8720e8 EFLAGS:
00000246 ORIG_RAX:
0000000000000001
[ 309.662548] RAX:
ffffffffffffffda RBX:
ffffffff81482bd3 RCX:
00007f507eac24a0
[ 309.662552] RDX:
0000000000000005 RSI:
00007fffda8720f0 RDI:
0000000000000005
[ 309.662557] RBP:
ffffc9000048bf88 R08:
0000000000000000 R09:
000000000000002c
[ 309.662561] R10:
0000000000000014 R11:
0000000000000246 R12:
00007fffda872230
[ 309.662566] R13:
00007fffda872228 R14:
0000000000000201 R15:
00007fffda8720f0
[ 309.662572] ? __this_cpu_preempt_check+0x13/0x20
Fixes:
0eafec6d3244 ("drm/i915: Enable lockless lookup of request tracking via RCU")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100192
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: <stable@vger.kernel.org> # v4.9+
Link: http://patchwork.freedesktop.org/patch/msgid/20170314115019.18127-1-chris@chris-wilson.co.uk
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ander Conselvan de Oliveira [Fri, 10 Mar 2017 10:18:34 +0000 (12:18 +0200)]
drm/i915/glk: Improve rounding caused by pre-CSC gamma tables
The 33rd entry in the pre-CSC gamma table in Geminilake can represent a
value of 1.0 as 17 bits fixed point with one integer bit. However, the
table was generated such that the value of 1.0 would be 0.ffff with
all the intervals scaled accordingly. For instance, 0.5 mapped to
0.7fff instead of 0.8000.
For a reason that is not clear to the author, the rounding seems to be
different when a cursor plane is used, leading to some seemingly random
failures of the kms_cursor_crc igt tests. The differences weren't
perceptible at 8bpc with images captured by a Chamelium device, but did
cause CRC mismatches.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170310101835.29845-1-ander.conselvan.de.oliveira@intel.com
Daniel Vetter [Wed, 8 Mar 2017 14:12:45 +0000 (15:12 +0100)]
drm/i915: Merge pre/postclose hooks
There's really not a reason afaics that we can't just clean up
everything at the end, in the terminal postclose hook: Since this is
closing a file descriptor we know no one else can have a reference or
a thread doing something with that drm_file except the close code.
Ordering shouldn't matter, as long as we don't kfree before we clean
stuff up.
In the past this was more relevant when drivers still had to track and
clean up pending drm events, but that's all done by the core now.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170308141257.12119-13-daniel.vetter@ffwll.ch
Ville Syrjälä [Wed, 8 Mar 2017 14:33:34 +0000 (16:33 +0200)]
Revert "drm/i915: Ignore panel type from OpRegion on SKL"
This reverts commit
bb10d4ec3be4b069bfb61c60ca4f708f58f440f1.
Since commit
c8ebfad7a063 ("drm/i915: Ignore OpRegion panel type except
on select machines") we ignore the OpRegion panel type except for
specific machines (handled via a DMI match), so having SKL explicitly
excluded from using the OpRegion panel type is redundant. So let's
remove the SKL check.
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170308143334.21216-1-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Daniel Vetter [Sun, 12 Mar 2017 20:53:40 +0000 (21:53 +0100)]
drm/i915: annote drop_caches debugfs interface with lockdep
The trouble we have is that we can't really test all the shrinker
recursion stuff exhaustively in BAT because any kind of thrashing
stress test just takes too long.
But that leaves a really big gap open, since shrinker recursions are
one of the most annoying bugs. Now lockdep already has support for
checking allocation deadlocks:
- Direct reclaim paths are marked up with
lockdep_set_current_reclaim_state() and
lockdep_clear_current_reclaim_state().
- Any allocation paths are marked with lockdep_trace_alloc().
If we simply mark up our debugfs with the reclaim annotations, any
code and locks taken in there will automatically complete the picture
with any allocation paths we already have, as long as we have a simple
testcase in BAT which throws out a few objects using this interface.
Not stress test or thrashing needed at all.
v2: Need to EXPORT_SYMBOL_GPL to make it compile as a module.
v3: Fixup rebase fail (spotted by Chris).
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170312205340.16202-1-daniel.vetter@ffwll.ch
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Jani Nikula [Fri, 10 Mar 2017 13:27:58 +0000 (15:27 +0200)]
drm/i915/vbt: split out defaults that are set when there is no VBT
The main thing are the DDI ports. If there's a VBT that says there are
no outputs, we should trust that, and not have semi-random
defaults. Unfortunately, the defaults have resulted in some Chromebooks
without VBT to rely on this behaviour, so we split out the defaults for
the missing VBT case.
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/95c26079ff640d43f53b944f17e9fc356b36daec.1489152288.git.jani.nikula@intel.com
Ville Syrjälä [Thu, 9 Mar 2017 15:44:34 +0000 (17:44 +0200)]
drm/i915: Optimize VLV/CHV display FIFO updates
Use I915_{READ,WRITE}_FW() for updating the DSPARB registers on
VLV/CHV. This is less expesive as we can grab the uncore.lock across
the entire sequence of reads and writes instead of each register
access grabbing it.
This also allows us to eliminate the dsparb lock entirely as the
uncore.lock now effectively protects the contents of the DSPARB
registers.
v2: Add a note that interrupts are already disabled (Chris)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170309154434.29303-6-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Ville Syrjälä [Thu, 9 Mar 2017 15:44:33 +0000 (17:44 +0200)]
drm/i915: Use I915_READ_FW for plane updates
Optimize the plane register accesses a little bit by grabbing
the uncore lock manually across the entire pile of accesses and
using I915_READ_FW().
This helps keep the pipe update vblank evade critical section
below our 100 usec deadline, particularly with lockdep enabled.
And in general we want to keep that critical section as short
as possible as it's executed with interrupts disabled.
Not all plane updates currently happen from within the vblank evade
critical section, so we must use the irqsave/irqrestore variants
of the spinlock functions in the plane hooks.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170309154434.29303-5-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Ville Syrjälä [Thu, 9 Mar 2017 15:44:32 +0000 (17:44 +0200)]
drm/i915: Organize plane register writes into tighter bunches
Pull all the plane register writes closer together to avoid having
a lot of unrelated stuff in between them. This will make things more
clear once we'll grab the uncore lock around the entire bunch. Also
in the future we might even consider moving more of the register
value computation out from the plane update hooks. This should make
that easier to do.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170309154434.29303-4-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Ville Syrjälä [Thu, 9 Mar 2017 15:44:31 +0000 (17:44 +0200)]
drm/i915: s/__raw_i915_read32/I915_READ_FW/ in the SKL+ scanline read w/a
Replace __raw_i915_read32() with I915_READ_FW() in the workaround for
the SKL+ scanline counter hardware fail. The two are the same thing
but everyone else uses I915_READ_FW() so let's follow suit.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170309154434.29303-3-ville.syrjala@linux.intel.com
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Ville Syrjälä [Thu, 9 Mar 2017 15:44:30 +0000 (17:44 +0200)]
drm/i915: Use I915_READ_FW in i915_get_vblank_counter()
Optimize the multi-register read in i915_get_vblank_counter() a little
bit by grabbing the uncore lock manually and using I915_READ_FW().
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170309154434.29303-2-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Ville Syrjälä [Mon, 13 Feb 2017 17:58:18 +0000 (19:58 +0200)]
drm/i915: Reject HDMI 12bpc if the sink doesn't indicate support
Check that the sink really declared 12bpc support before we enable it.
This should not actually never happen since it's mandatory for HDMI
sinks to support 12bpc if they support any deep color modes. But
reality disagrees with the theory and there are actually sinks in
the wild that violate the spec.
v2: Fix the output_types check
Update commit message to state that these things are in fact real
Cc: stable@vger.kernel.org
Cc: Nicholas Sielicki <nicholas.sielicki@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99250
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170213175818.24958-1-ville.syrjala@linux.intel.com
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Chris Wilson [Mon, 13 Mar 2017 09:56:17 +0000 (09:56 +0000)]
drm/i915: Extend rpm wakelock for debugfs/i915_drpc_info
i915_drpc_info missed covering a few register read with the runtime pm
wakelock. Be simple and cover the entire function with a single wakelock
so that new additions are not similarly missed in future.
WARNING: CPU: 2 PID: 1334 at drivers/gpu/drm/i915/intel_drv.h:1743 gen6_read32+0x192/0x1e0 [i915]
RPM wakelock ref not held during HW access
Modules linked in: rpcsec_gss_krb5 nfsv4 dns_resolver netconsole nfsd auth_rpcgss ipmi_watchdog ipmi_poweroff ipmi_devintf ipmi_msghandler overlay btrfs xor raid6_pq dm_mod sg sd_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ata_generic pata_acpi intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_intel kvm_intel snd_hda_codec kvm eeepc_wmi irqbypass snd_hda_core crct10dif_pclmul crc32_pclmul crc32c_intel asus_wmi sparse_keymap ghash_clmulni_intel snd_hwdep i915 rfkill ppdev pcbc aesni_intel ata_piix crypto_simd glue_helper snd_pcm pata_via cryptd pcspkr snd_timer drm_kms_helper syscopyarea snd sysfillrect libata sysimgblt fb_sys_fops soundcore shpchp drm wmi parport_pc parport tpm_infineon video
CPU: 2 PID: 1334 Comm: php5 Not tainted
4.10.0-rc8-01615-g1f58c8e #1
Hardware name: System manufacturer System Product Name/P8H67-M PRO, BIOS 1002 04/01/2011
Call Trace:
dump_stack+0x63/0x8a
__warn+0xcb/0xf0
warn_slowpath_fmt+0x4f/0x60
? seq_vprintf+0x35/0x50
gen6_read32+0x192/0x1e0 [i915]
i915_drpc_info+0x55d/0x990 [i915]
seq_read+0xf2/0x3b0
full_proxy_read+0x51/0x80
__vfs_read+0x28/0x130
? security_file_permission+0x9b/0xc0
? rw_verify_area+0x4e/0xb0
vfs_read+0xa8/0x170
SyS_read+0x46/0xa0
entry_SYSCALL_64_fastpath+0x1a/0xa9
RIP: 0033:0x7fd97bf175a0
RSP: 002b:
00007ffdf730db68 EFLAGS:
00000246 ORIG_RAX:
0000000000000000
RAX:
ffffffffffffffda RBX:
00007fd978028738 RCX:
00007fd97bf175a0
RDX:
0000000000002000 RSI:
00007fd97740e0d8 RDI:
0000000000000005
RBP:
0000000000000001 R08:
0000000000e97840 R09:
00007fd977ef8d58
R10:
0000000000000027 R11:
0000000000000246 R12:
00007fd977ef8d58
R13:
0000000000000000 R14:
0000000000eb4640 R15:
0000000000000000
Reported-by: kernel test robot <xiaolong.ye@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170313095617.29010-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Chris Wilson [Sun, 12 Mar 2017 13:54:26 +0000 (13:54 +0000)]
drm/i915: Inline gen6_sanitize_rps_pm_mask()
gen6_sanitize_rps_pm_mask() is small enough that inlining it shrinks the
object code.
v2: Use const markup
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170312135426.2216-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Chris Wilson [Mon, 13 Mar 2017 12:47:24 +0000 (12:47 +0000)]
drm/i915/selftests: Catch error from mock_file()
The patch
791ff39ae32a: "drm/i915: Live testing for context
execution" from Feb 13, 2017, leads to the following static checker
warning:
drivers/gpu/drm/i915/selftests/i915_gem_context.c:347 igt_ctx_exec()
error: 'file' dereferencing possible ERR_PTR()
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes:
791ff39ae32a ("drm/i915: Live testing for context execution")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: <drm-intel-fixes@lists.freedesktop.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170313124724.10614-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Chris Wilson [Mon, 13 Mar 2017 10:07:50 +0000 (10:07 +0000)]
drm/i915/selftests: Fix error path for ggtt walk_hole()
The patch
6e32ab3d4777: "drm/i915: Fill different pages of the GTT"
from Feb 13, 2017, leads to the following static checker warning:
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c:583 walk_hole()
error: 'vma' dereferencing possible ERR_PTR()
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes:
6e32ab3d4777 ("drm/i915: Fill different pages of the GTT"
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: <drm-intel-fixes@lists.freedesktop.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170313100750.2685-1-chris@chris-wilson.co.uk
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Chris Wilson [Fri, 10 Mar 2017 00:09:42 +0000 (00:09 +0000)]
drm/i915: Move whole object to CPU domain for coherent shmem access
If the object is coherent, we can simply update the cache domain on the
whole object rather than calculate the before/after clflushes. The
advantage is that we then get correct tracking of ellided flushes when
changing coherency later.
Testcase: igt/gem_pwrite_snooped
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170310000942.11661-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Chris Wilson [Sun, 12 Mar 2017 13:27:45 +0000 (13:27 +0000)]
drm/i915: Rename REDIRECT_TO_GUC bit
The REDIRECT_TO_GUC bit is a strange beast as it is a disable bit -
setting the bit in the pm interrupt generation stops the interrupt going
to the guc (not sending it to the guc as the name implies). To help the
reader rename it to DISABLE_REDIRECT_TO_GUC so that we keep the bspec
greppable name without it being as confusing!
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Oscar Mateo <oscar.mateo@intel.com>
Cc: Radoslaw Szwichtenberg <radoslaw.szwichtenberg@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170312132745.9618-1-chris@chris-wilson.co.uk
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Maarten Lankhorst [Thu, 9 Mar 2017 14:52:05 +0000 (15:52 +0100)]
drm/i915: Use new atomic iterator macros in cdclk
Calculating the max pixel rate requires the new state, so use it there.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1489071125-917-6-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Maarten Lankhorst [Thu, 9 Mar 2017 14:52:04 +0000 (15:52 +0100)]
drm/i915: Use new atomic iterator macros in display code
Add a big fat warning in __intel_display_resume that the old state is
invalid, and use the correct state everywhere.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1489071125-917-5-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[mlankhorst: Change one occurence of conn_state to new_conn_state in
verify_connector_state, and drop old_conn_state there]
Maarten Lankhorst [Thu, 9 Mar 2017 14:52:03 +0000 (15:52 +0100)]
drm/i915: Use new atomic iterator macros in wm code
The watermark code needs to look at the new allocations, so use
for_each_new_crtc_in_state everywhere.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1489071125-917-4-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Maarten Lankhorst [Thu, 9 Mar 2017 14:52:02 +0000 (15:52 +0100)]
drm/i915: Use new atomic iterator macros in fbc
Use for_each_new_plane_in_state, only the new state is needed.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1489071125-917-3-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Maarten Lankhorst [Thu, 9 Mar 2017 14:52:01 +0000 (15:52 +0100)]
drm/i915: Use new atomic iterator macros in ddi
Use for_each_new_connector_in_state instead of for_each_connector_in_state.
Also make the function static, it's only used inside intel_ddi.c
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1489071125-917-2-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Jani Nikula [Fri, 10 Mar 2017 13:27:57 +0000 (15:27 +0200)]
drm/i915/vbt: don't propagate errors from intel_bios_init()
We don't use the error return for anything other than reporting and
logging that there is no VBT. We can pull the logging in the function,
and remove the error status return. Moreover, if we needed the
information for something later on, we'd probably be better off storing
the bit in dev_priv, and using it where it's needed, instead of using
the error return.
While at it, improve the comments.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/438ebbb0d5f0d321c625065b9cc78532a1dab24f.1489152288.git.jani.nikula@intel.com
Daniel Vetter [Mon, 13 Mar 2017 08:26:06 +0000 (09:26 +0100)]
Merge tag 'topic/designware-baytrail-2017-03-02' of git://anongit.freedesktop.org/git/drm-intel into drm-intel-next-queued
Baytrail PMIC vs. PMU race fixes from Hans de Goede
This time the right version (v4), with the compile fix.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Sagar Arun Kamble [Sat, 11 Mar 2017 02:37:01 +0000 (08:07 +0530)]
drm/i915/guc: Update rps.pm_intrmsk_mbz in guc_interrupts_capture/release
Different state is to be maintained for rps.pm_intrmsk_mbz for GuC and
Execlists. Updating it inside guc_interrupts_* routines as in those
routines GuC load/submission params are sanitized and it should not be set
based on HAS_GUC_SCHED during intel_irq_init.
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Oscar Mateo <oscar.mateo@intel.com>
Cc: Radoslaw Szwichtenberg <radoslaw.szwichtenberg@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1489199821-6707-3-git-send-email-sagar.a.kamble@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Sagar Arun Kamble [Sat, 11 Mar 2017 02:37:00 +0000 (08:07 +0530)]
drm/i915: s/pm_intr_keep/pm_intrmsk_mbz
"pm_intr_keep" is not conveying the intent that it is bitmask
of interrupts that must be zero(mbz) in GEN6_PMINTRMSK.
Name it "pm_intrmsk_mbz".
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Radoslaw Szwichtenberg <radoslaw.szwichtenberg@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1489199821-6707-2-git-send-email-sagar.a.kamble@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Sagar Arun Kamble [Sat, 11 Mar 2017 02:36:59 +0000 (08:06 +0530)]
drm/i915/guc: Release GuC interrupts in i915_guc_submission_disable
Like capture of GuC interrupts while enabling GuC submission, release
them while disabling GuC submission.
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Oscar Mateo <oscar.mateo@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1489199821-6707-1-git-send-email-sagar.a.kamble@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Thu, 9 Mar 2017 21:12:32 +0000 (21:12 +0000)]
drm/i915: Defer unmasking RPS interrupts until after making adjustments
To make our adjustments to RPS requires taking a mutex and potentially
sleeping for an unknown duration - until we have completed our
adjustments further RPS interrupts are immaterial (they are based on
stale thresholds) and we can safely ignore them.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170309211232.28878-3-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Chris Wilson [Thu, 9 Mar 2017 21:12:31 +0000 (21:12 +0000)]
drm/i915: Use max(render, media) for Baytrail busyness calculation
Currently, we sum the render and media cycles (on different engines) to
compute a percentage - but we fail to factor in the duplication into the
threshold calculations. This makes us very eager to upclock!
If we just consider the maximum busy cycles of either counter, we should
have an accurate reflection on whether there are cycles to spare to
handle the workload at this frequency.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170309211232.28878-2-chris@chris-wilson.co.uk
Chris Wilson [Thu, 9 Mar 2017 21:12:30 +0000 (21:12 +0000)]
drm/i915: Stop using RP_DOWN_EI on Baytrail
On Baytrail, we manually calculate busyness over the evaluation interval
to avoid issues with miscaluations with RC6 enabled. However, it turns
out that the DOWN_EI interrupt generator is completely bust - it
operates in two modes, continuous or never. Neither of which are
conducive to good behaviour. Stop unmask the DOWN_EI interrupt and just
compute everything from the UP_EI which does seem to correspond to the
desired interval.
v2: Fixup gen6_rps_pm_mask() as well
v3: Inline vlv_c0_above() to combine the now identical elapsed
calculation for up/down and simplify the threshold testing
Fixes:
43cf3bf084ba ("drm/i915: Improved w/a for rps on Baytrail")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.1+
Link: http://patchwork.freedesktop.org/patch/msgid/20170309211232.28878-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Chris Wilson [Wed, 8 Mar 2017 14:46:22 +0000 (14:46 +0000)]
drm/i915: Extend debugfs/i915_drop_caches to call i915_gem_shrink_all()
Sometimes we want to explicitly page out all available objects from igt,
i.e. call i915_gem_shrink_all() and check that subsequent operations
succeed. This adds DROP_SHRINK_ALL [0x8] to the set of flags for
debugfs/i915_drop_caches for that purpose.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170308144622.23194-1-chris@chris-wilson.co.uk
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Fri, 10 Mar 2017 11:55:18 +0000 (11:55 +0000)]
drm/i915/cmdparser: Limit clflush to active cachelines
We only need to clflush those cachelines that we have validated to be
read by the GPU. Userspace typically fills the batch length in
correctly, the exceptions tend to be explicit tests within igt.
v2: Use ptr_mask_bits() to make Mika happy
v3: cmd is not advanced on MI_BBE, so make sure to include an extra
dword in the clflush.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170310115518.13832-1-chris@chris-wilson.co.uk
Tvrtko Ursulin [Fri, 10 Mar 2017 09:32:49 +0000 (09:32 +0000)]
drm/i915: Fix forcewake active domain tracking
In commit
003342a50021 ("drm/i915: Keep track of active
forcewake domains in a bitmask") I forgot to adjust the
newly introduce fw_domains_active state across reset.
This caused the assert_forcewakes_inactive to trigger
during suspend and resume if there were user held
forcewakes.
v2: Bitmask checks are required since vfuncs are not
always present.
v3: Move bitmask tracking to get/put vfunc for simplicity.
(Chris Wilson)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes:
003342a50021 ("drm/i915: Keep track of active forcewake domains in a bitmask")
Testcase: igt/drv_suspend/forcewake
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: "Paneri, Praveen" <praveen.paneri@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Cc: v4.10+ <stable@vger.kernel.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170310093249.4484-1-tvrtko.ursulin@linux.intel.com
Shashank Sharma [Thu, 9 Mar 2017 13:43:41 +0000 (19:13 +0530)]
drm/i915: Remove intel_ prefix from encoder variables in intel_ddi.c
In I915 driver, there are many places where variable name for
intel_encoder object is given as 'intel_encoder' whereas it would
make more sense to call it just 'encoder' when possible.
This patch does this cleanup in file intel_ddi.c.
PS: There are few functions where both drm_encoder and intel_encoder
are present. For such functions, this patch does nothing.
Suggested-by: Ander Conselvan De Oliveira <conselvan2@gmail.com>
Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ander Conselvan De Oliveira <conselvan2@gmail.com>
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1489067021-4709-1-git-send-email-shashank.sharma@intel.com
Andrew Morton [Thu, 9 Mar 2017 23:47:37 +0000 (15:47 -0800)]
drivers/gpu/drm/i915/selftests/i915_selftest.c: fix build with gcc-4.4.4
gcc-4.4.4 has issues with anonymous union initializers.
In file included from drivers/gpu/drm/i915/selftests/i915_selftest.c:68:
drivers/gpu/drm/i915/selftests/i915_mock_selftests.h:11: error: unknown field 'mock' specified in initializer
drivers/gpu/drm/i915/selftests/i915_mock_selftests.h:11: warning: missing braces around initializer
drivers/gpu/drm/i915/selftests/i915_mock_selftests.h:11: warning: (near initialization for 'mock_selftests[0].<anonymous>')
drivers/gpu/drm/i915/selftests/i915_mock_selftests.h:12: error: unknown field 'mock' specified in initializer
drivers/gpu/drm/i915/selftests/i915_mock_selftests.h:13: error: unknown field 'm
...
Work around this.
Fixes:
953c7f82eb89 ("drm/i915: Provide a hook for selftests")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170310090314.3142-1-chris@chris-wilson.co.uk
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Tvrtko Ursulin [Thu, 9 Mar 2017 13:20:04 +0000 (13:20 +0000)]
drm/i915/guc: Fix request re-submission after reset
In order to ensure no missed interrupts we must first re-direct
the interrupts to GuC, and only then re-submit the requests to
be replayed after a GPU reset. Otherwise context switch can fire
before GuC has been set up to receive it triggering more hangs.
v2: Rebase.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Oscar Mateo <oscar.mateo@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170309132005.1317-1-tvrtko.ursulin@linux.intel.com
Chris Wilson [Thu, 9 Mar 2017 14:20:49 +0000 (14:20 +0000)]
drm/i915: Ignore skl+ for debugfs/i915_sr_status
There is no easily digestible single self-refresh status bit, so don't
report one for debugfs/i915_sr_status on gen9+. For the moment this
avoids a read of the non-existent WM1_LP_ILK register.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170309142049.16033-1-chris@chris-wilson.co.uk
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Sagar Arun Kamble [Tue, 7 Mar 2017 04:52:35 +0000 (10:22 +0530)]
drm/i915: Initialize pm_intr_keep during intel_irq_init for GuC
Driver needs to ensure that it doesn't mask the PM interrupts, which are
unmasked/needed by GuC firmware. For that, Driver maintains a bitmask of
interrupts to be kept unmasked, pm_intr_keep.
pm_intr_keep was determined across GuC load. GuC gets loaded in different
scenarios and it is not going to change the pm_intr_keep so this patch
moves its setup to intel_irq_init.
This patch fixes incorrect RPS masking leading to UP interrupts triggered
even when at cur_freq=max and inversly for Down interrupts.
Cc: Radoslaw Szwichtenberg <radoslaw.szwichtenberg@intel.com>
Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1488862355-9768-1-git-send-email-sagar.a.kamble@intel.com
Maarten Lankhorst [Wed, 8 Mar 2017 12:00:07 +0000 (13:00 +0100)]
drm/i915: Nuke skl_update_plane debug message from the pipe update critical section
printks are slow so we should not be doing them from the vblank evade
critical section. These could explain why we sometimes seem to
blow past our 100 usec deadline.
The problem has been there ever since commit
c331879ce8ea ("drm/i915:
skylake sprite plane scaling using shared scalers.") but it may not have
been readily visible until commit
e1edbd44e23b ("drm/i915: Complain
if we take too long under vblank evasion.") increased our chances
of noticing it.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1488974407-25175-1-git-send-email-maarten.lankhorst@linux.intel.com
Fixes:
c331879ce8ea ("drm/i915: skylake sprite plane scaling using shared scalers")
Cc: <stable@vger.kernel.org> # v4.2+
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[mlankhorst: Add missing tags, point to the correct offending commit]
Matthew Auld [Mon, 6 Mar 2017 23:54:02 +0000 (23:54 +0000)]
drm/i915/selftests: exercise cache domain eviction
Add a selftest to exercise evicting neighbouring nodes that conflict due
to page colouring in the GTT.
v2: add a peppering of comments
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170306235414.23407-4-matthew.auld@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Matthew Auld [Mon, 6 Mar 2017 23:54:01 +0000 (23:54 +0000)]
drm/i915: use correct node for handling cache domain eviction
It looks like we were incorrectly comparing vma->node against itself
instead of the target node, when evicting for a node on systems where we
need guard pages between regions with different cache domains. As a
consequence we can end up trying to needlessly evict neighbouring nodes,
even if they have the same cache domain, and if they were pinned we
would fail the eviction.
Fixes:
625d988acc28 ("drm/i915: Extract reserving space in the GTT to a helper")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170306235414.23407-3-matthew.auld@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Matthew Auld [Mon, 6 Mar 2017 23:54:00 +0000 (23:54 +0000)]
drm/i915/selftests: don't leak the gem object
For our fake dma objects we can leak the underlying gem object if we
fail to pin our "backing storage".
[ 39.952618] =============================================================================
[ 39.952625] BUG mock_object (Tainted: G U ): Objects remaining in mock_object on __kmem_cache_shutdown()
[ 39.952629] -----------------------------------------------------------------------------
[ 39.952633] Disabling lock debugging due to kernel taint
[ 39.952635] INFO: Slab 0xffffea00086c6a00 objects=21 used=1 fp=0xffff88021b1abc00 flags=0x5fff8000008100
[ 39.952640] CPU: 1 PID: 1258 Comm: drv_selftest Tainted: G BU 4.10.0+ #46
[ 39.952641] Hardware name: Apple Inc. MacBookPro11,1/Mac-
189A3D4F975D5FFC, BIOS MBP111.88Z.0138.B17.
1602221718 02/22/2016
[ 39.952642] Call Trace:
[ 39.952648] dump_stack+0x4d/0x6f
[ 39.952651] slab_err+0x9d/0xb0
[ 39.952654] ? ksm_migrate_page+0xe0/0xe0
[ 39.952657] ? on_each_cpu_cond+0x9a/0xc0
[ 39.952658] ? __kmalloc+0x1af/0x1c0
[ 39.952660] ? __kmem_cache_shutdown+0x173/0x3e0
[ 39.952661] __kmem_cache_shutdown+0x196/0x3e0
[ 39.952664] kmem_cache_destroy+0xa0/0x150
[ 39.952708] mock_device_release+0x113/0x140 [i915]
[ 39.952726] drm_dev_release+0x20/0x40 [drm]
[ 39.952735] drm_dev_unref+0x23/0x30 [drm]
[ 39.952768] i915_gem_gtt_mock_selftests+0x55/0x70 [i915]
[ 39.952803] __run_selftests+0x169/0x1c0 [i915]
[ 39.952805] ? 0xffffffffa0151000
[ 39.952840] i915_mock_selftests+0x30/0x60 [i915]
[ 39.952869] i915_init+0xc/0x78 [i915]
[ 39.952870] ? 0xffffffffa0151000
[ 39.952872] do_one_initcall+0x43/0x170
[ 39.952874] ? __vunmap+0x81/0xd0
[ 39.952875] ? kmem_cache_alloc_trace+0x37/0x170
[ 39.952877] ? do_init_module+0x27/0x1f8
[ 39.952879] do_init_module+0x5f/0x1f8
[ 39.952881] load_module+0x2423/0x29b0
[ 39.952882] ? __symbol_put+0x40/0x40
[ 39.952885] ? kernel_read_file+0x1a3/0x1c0
[ 39.952887] SYSC_finit_module+0xbc/0xf0
[ 39.952889] SyS_finit_module+0xe/0x10
[ 39.952892] entry_SYSCALL_64_fastpath+0x13/0x94
v2: use onion teardown and favour i915_gem_object_put
Fixes:
8d28ba4568f4 ("drm/i915: Exercise filling the top/bottom portions of the ppgtt")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170306235414.23407-2-matthew.auld@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Wed, 8 Mar 2017 21:59:03 +0000 (21:59 +0000)]
drm/i915/userptr: Disallow wrapping GTT into a userptr
If we allow the user to convert a GTT mmap address into a userptr, we
may end up in recursion hell, where currently we hit a mutex deadlock
but other possibilities include use-after-free during the
unbind/cancel_userptr.
[ 143.203989] gem_userptr_bli D 0 902 898 0x00000000
[ 143.204054] Call Trace:
[ 143.204137] __schedule+0x511/0x1180
[ 143.204195] ? pci_mmcfg_check_reserved+0xc0/0xc0
[ 143.204274] schedule+0x57/0xe0
[ 143.204327] schedule_timeout+0x383/0x670
[ 143.204374] ? trace_hardirqs_on_caller+0x187/0x280
[ 143.204457] ? trace_hardirqs_on_thunk+0x1a/0x1c
[ 143.204507] ? usleep_range+0x110/0x110
[ 143.204657] ? irq_exit+0x89/0x100
[ 143.204710] ? retint_kernel+0x2d/0x2d
[ 143.204794] ? trace_hardirqs_on_caller+0x187/0x280
[ 143.204857] ? _raw_spin_unlock_irq+0x33/0x60
[ 143.204944] wait_for_common+0x1f0/0x2f0
[ 143.205006] ? out_of_line_wait_on_atomic_t+0x170/0x170
[ 143.205103] ? wake_up_q+0xa0/0xa0
[ 143.205159] ? flush_workqueue_prep_pwqs+0x15a/0x2c0
[ 143.205237] wait_for_completion+0x1d/0x20
[ 143.205292] flush_workqueue+0x2e9/0xbb0
[ 143.205339] ? flush_workqueue+0x163/0xbb0
[ 143.205418] ? __schedule+0x533/0x1180
[ 143.205498] ? check_flush_dependency+0x1a0/0x1a0
[ 143.205681] i915_gem_userptr_mn_invalidate_range_start+0x1c7/0x270 [i915]
[ 143.205865] ? i915_gem_userptr_dmabuf_export+0x40/0x40 [i915]
[ 143.205955] __mmu_notifier_invalidate_range_start+0xc6/0x120
[ 143.206044] ? __mmu_notifier_invalidate_range_start+0x51/0x120
[ 143.206123] zap_page_range_single+0x1c7/0x1f0
[ 143.206171] ? unmap_single_vma+0x160/0x160
[ 143.206260] ? unmap_mapping_range+0xa9/0x1b0
[ 143.206308] ? vma_interval_tree_subtree_search+0x75/0xd0
[ 143.206397] unmap_mapping_range+0x18f/0x1b0
[ 143.206444] ? zap_vma_ptes+0x70/0x70
[ 143.206524] ? __pm_runtime_resume+0x67/0xa0
[ 143.206723] i915_gem_release_mmap+0x1ba/0x1c0 [i915]
[ 143.206846] i915_vma_unbind+0x5c2/0x690 [i915]
[ 143.206925] ? __lock_is_held+0x52/0x100
[ 143.207076] i915_gem_object_set_tiling+0x1db/0x650 [i915]
[ 143.207236] i915_gem_set_tiling_ioctl+0x1d3/0x3b0 [i915]
[ 143.207377] ? i915_gem_set_tiling_ioctl+0x5/0x3b0 [i915]
[ 143.207457] drm_ioctl+0x36c/0x670
[ 143.207535] ? debug_lockdep_rcu_enabled.part.0+0x1a/0x30
[ 143.207730] ? i915_gem_object_set_tiling+0x650/0x650 [i915]
[ 143.207793] ? drm_getunique+0x120/0x120
[ 143.207875] ? __handle_mm_fault+0x996/0x14a0
[ 143.207939] ? vm_insert_page+0x340/0x340
[ 143.208028] ? up_write+0x28/0x50
[ 143.208086] ? vm_mmap_pgoff+0x160/0x190
[ 143.208163] do_vfs_ioctl+0x12c/0xa60
[ 143.208218] ? debug_lockdep_rcu_enabled+0x35/0x40
[ 143.208267] ? ioctl_preallocate+0x150/0x150
[ 143.208353] ? __do_page_fault+0x36a/0x6e0
[ 143.208400] ? mark_held_locks+0x23/0xc0
[ 143.208479] ? up_read+0x1f/0x40
[ 143.208526] ? entry_SYSCALL_64_fastpath+0x5/0xc6
[ 143.208669] ? __fget_light+0xa7/0xc0
[ 143.208747] SyS_ioctl+0x41/0x70
To prevent the possibility of a deadlock, we defer scheduling the worker
until after we have proven that given the current mm, the userptr range
does not overlap a GGTT mmaping. If another thread tries to remap the
GGTT over the userptr before the worker is scheduled, it will be stopped
by its invalidate-range flushing the current work, before the deadlock
can occur.
v2: Improve discussion of how we end up in the deadlock.
v3: Don't forget to mark the userptr as active after a successful
gup_fast. Rename overlaps_ggtt to noncontiguous_or_overlaps_ggtt.
v4: Fix test ordering between invalid GTT mmaping and range completion
(Tvrtko)
Reported-by: Michał Winiarski <michal.winiarski@intel.com>
Testcase: igt/gem_userptr_blits/map-fixed-invalidate-gup
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170308215903.24171-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Chris Wilson [Tue, 7 Mar 2017 20:58:50 +0000 (20:58 +0000)]
drm/i915/userptr: Only flush the workqueue if required
To avoid waiting for work from other invalidate-range threads where
not required, only wait on the userptr cancel workqueue if we have added
some work to it.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170307205851.32578-2-chris@chris-wilson.co.uk
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Chris Wilson [Tue, 7 Mar 2017 20:58:49 +0000 (20:58 +0000)]
drm/i915/userptr: Deactivate a failed userptr if the worker reports an EFAULT
If the worker fails, it no longer has pages to release and can be
immediately removed from the invalidate-tree.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170307205851.32578-1-chris@chris-wilson.co.uk
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Daniel Vetter [Wed, 1 Mar 2017 09:52:26 +0000 (10:52 +0100)]
drm/i915: Fix up verify_encoder_state
The trouble here is that looking at all connector->state in the
verifier isn't good, because that's run from the commit work, which
doesn't hold the connection_mutex. Which means we're only allowed to
look at states in our atomic update.
The simple fix for future proofing would be to switch over to
drm_for_each_connector_in_state, but that has the problem that the
verification then fails if not all connectors are in the state. And we
also need to be careful to check both old and new encoders, and not
screw things up when an encoder gets reassigned.
Note that this isn't the full fix, since we still look at
connector->state. To fix that, we need Maarten's patch series to
switch over to state pointers within drm_atomic_state, but that's a
different series.
v2: Use oldnew iterator (Maarten).
v3: Rebase onto the iter_get/put->iter_begin/end rename.
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170301095226.30584-6-daniel.vetter@ffwll.ch
Daniel Vetter [Wed, 1 Mar 2017 09:52:25 +0000 (10:52 +0100)]
drm/i915: use for_each_intel_connector_iter in intel_display.c
This gets rid of the last users of for_each_intel_connector(), remove
that too.
At first I wasn't sure whether the 2 loops in the modeset state
checker should instead only loop over the connectors in the atomic
commit. But we never add connectors to an atomic update if they don't
(or won't have) a CRTC assigned, which means there'd be a gap in check
coverage. Hence loop over everything on those too.
v2: Rebase onto the iter_get/put->iter_begin/end rename.
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170301095226.30584-5-daniel.vetter@ffwll.ch
Daniel Vetter [Wed, 1 Mar 2017 09:52:24 +0000 (10:52 +0100)]
drm/i915: Make intel_get_pipe_from_connector atomic
Drive-by fixup while looking at all the connector_list walkers -
holding connection_mutex does actually _not_ give you locking to look
at the legacy drm_connector->encoder->crtc pointer chain. That one is
solely owned by the atomic commit workers. Instead we must inspect the
atomic state.
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170301095226.30584-4-daniel.vetter@ffwll.ch
Daniel Vetter [Wed, 1 Mar 2017 09:52:23 +0000 (10:52 +0100)]
drm/i915: use drm_connector_list_iter in intel_opregion.c
One case where I nuked a now unecessary locking, otherwise all just
boring stuff.
v2: Rebase onto the iter_get/put->iter_begin/end rename.
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170301095226.30584-3-daniel.vetter@ffwll.ch
Daniel Vetter [Wed, 1 Mar 2017 09:52:22 +0000 (10:52 +0100)]
drm/i915: use drm_connector_list_iter in intel_hotplug.c
Nothing special, just rote conversion.
v2: Rebase onto the iter_get/put->iter_begin/end rename.
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170301095226.30584-2-daniel.vetter@ffwll.ch
Daniel Vetter [Wed, 1 Mar 2017 09:52:21 +0000 (10:52 +0100)]
drm/i915: Use drm_connector_list_iter in debugfs
While at it also try to reduce the locking a bit to what's really just
needed instead of everything that we could possibly lock.
Added a new for_each_intel_connector_iter which includes the cast to
intel_connector.
Otherwise just plain transformation with nothing special going on.
v2: Review from Maarten:
- Stick with modeset_lock_all in sink_crc, it looks at crtc->state.
- Fix up early loop exit in i915_displayport_test_active_write.
v3: Rebase onto the iter_get/put->iter_begin/end rename.
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> (v2)
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170301095226.30584-1-daniel.vetter@ffwll.ch
Chris Wilson [Wed, 8 Mar 2017 14:22:38 +0000 (14:22 +0000)]
drm/i915: Check for an invalid seqno before __i915_gem_request_started
__i915_gem_request_started() asserts that the seqno is valid, but
i915_spin_request() was not checking before querying whether the request
had started.
Reported-by: Michał Winiarski <michal.winiarski@intel.com>
Fixes:
754c9fd57649 ("drm/i915: Protect the request->global_seqno with the engine->timeline lock")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170308142238.22994-1-chris@chris-wilson.co.uk
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Chris Wilson [Wed, 8 Mar 2017 13:26:29 +0000 (13:26 +0000)]
drm/i915: Purge i915_gem_object_is_dead()
i915_gem_object_is_dead() was a temporary lockdep aide whilst
transitioning to a new locking structure for obj->mm. Since commit
1233e2db199d ("drm/i915: Move object backing storage manipulation to its
own locking") it is now unused and should be removed.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170308132629.7987-2-chris@chris-wilson.co.uk
Chris Wilson [Wed, 8 Mar 2017 13:26:28 +0000 (13:26 +0000)]
drm/i915: Avoiding recursing on ww_mutex inside shrinker
We have to avoid taking ww_mutex inside the shrinker as we use it as a
plain mutex type and so need to avoid recursive deadlocks:
[ 602.771969] =================================
[ 602.771970] [ INFO: inconsistent lock state ]
[ 602.771973] 4.10.0gpudebug+ #122 Not tainted
[ 602.771974] ---------------------------------
[ 602.771975] inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-W} usage.
[ 602.771978] kswapd0/40 [HC0[0]:SC0[0]:HE1:SE1] takes:
[ 602.771979] (reservation_ww_class_mutex){+.+.?.}, at: [<
ffffffffa054680a>] i915_gem_object_wait+0x39a/0x410 [i915]
[ 602.772020] {RECLAIM_FS-ON-W} state was registered at:
[ 602.772024] mark_held_locks+0x76/0x90
[ 602.772026] lockdep_trace_alloc+0xb8/0xc0
[ 602.772028] __kmalloc_track_caller+0x5d/0x130
[ 602.772031] krealloc+0x89/0xb0
[ 602.772033] reservation_object_reserve_shared+0xaf/0xd0
[ 602.772055] i915_gem_do_execbuffer.isra.35+0x1413/0x18b0 [i915]
[ 602.772075] i915_gem_execbuffer2+0x10e/0x1d0 [i915]
[ 602.772078] drm_ioctl+0x291/0x480
[ 602.772079] do_vfs_ioctl+0x695/0x6f0
[ 602.772081] SyS_ioctl+0x3c/0x70
[ 602.772084] entry_SYSCALL_64_fastpath+0x18/0xad
[ 602.772085] irq event stamp:
5197423
[ 602.772088] hardirqs last enabled at (
5197423): [<
ffffffff8116751d>] kfree+0xdd/0x170
[ 602.772091] hardirqs last disabled at (
5197422): [<
ffffffff811674f9>] kfree+0xb9/0x170
[ 602.772095] softirqs last enabled at (
5190992): [<
ffffffff8107bfe1>] __do_softirq+0x221/0x280
[ 602.772097] softirqs last disabled at (
5190575): [<
ffffffff8107c294>] irq_exit+0x64/0xc0
[ 602.772099]
other info that might help us debug this:
[ 602.772100] Possible unsafe locking scenario:
[ 602.772101] CPU0
[ 602.772101] ----
[ 602.772102] lock(reservation_ww_class_mutex);
[ 602.772104] <Interrupt>
[ 602.772105] lock(reservation_ww_class_mutex);
[ 602.772107]
*** DEADLOCK ***
[ 602.772109] 2 locks held by kswapd0/40:
[ 602.772110] #0: (shrinker_rwsem){++++..}, at: [<
ffffffff811337b5>] shrink_slab.constprop.62+0x35/0x280
[ 602.772116] #1: (&dev->struct_mutex){+.+.+.}, at: [<
ffffffffa0553957>] i915_gem_shrinker_lock+0x27/0x60 [i915]
[ 602.772141]
stack backtrace:
[ 602.772144] CPU: 2 PID: 40 Comm: kswapd0 Not tainted 4.10.0gpudebug+ #122
[ 602.772145] Hardware name: LENOVO 42433ZG/42433ZG, BIOS 8AET64WW (1.44 ) 07/26/2013
[ 602.772147] Call Trace:
[ 602.772151] dump_stack+0x68/0xa1
[ 602.772153] print_usage_bug+0x1d4/0x1f0
[ 602.772155] mark_lock+0x390/0x530
[ 602.772157] ? print_irq_inversion_bug+0x200/0x200
[ 602.772159] __lock_acquire+0x405/0x1260
[ 602.772181] ? i915_gem_object_wait+0x39a/0x410 [i915]
[ 602.772183] lock_acquire+0x60/0x80
[ 602.772205] ? i915_gem_object_wait+0x39a/0x410 [i915]
[ 602.772207] mutex_lock_nested+0x69/0x760
[ 602.772229] ? i915_gem_object_wait+0x39a/0x410 [i915]
[ 602.772231] ? kfree+0xdd/0x170
[ 602.772253] ? i915_gem_object_wait+0x163/0x410 [i915]
[ 602.772255] ? trace_hardirqs_on_caller+0x18d/0x1c0
[ 602.772256] ? trace_hardirqs_on+0xd/0x10
[ 602.772278] i915_gem_object_wait+0x39a/0x410 [i915]
[ 602.772300] i915_gem_object_unbind+0x5e/0x130 [i915]
[ 602.772323] i915_gem_shrink+0x22d/0x3d0 [i915]
[ 602.772347] i915_gem_shrinker_scan+0x3f/0x80 [i915]
[ 602.772349] shrink_slab.constprop.62+0x1ad/0x280
[ 602.772352] shrink_node+0x52/0x80
[ 602.772355] kswapd+0x427/0x5c0
[ 602.772358] kthread+0x122/0x130
[ 602.772360] ? try_to_free_pages+0x270/0x270
[ 602.772362] ? kthread_stop+0x70/0x70
[ 602.772365] ret_from_fork+0x2e/0x40
v2: Add commentary about the pruning being opportunistic
Reported-by: Jan Nordholz <jckn@gmx.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99977#c10
Fixes:
e54ca9774777 ("drm/i915: Remove completed fences after a wait")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170308132629.7987-1-chris@chris-wilson.co.uk
Ville Syrjälä [Tue, 7 Mar 2017 19:42:10 +0000 (21:42 +0200)]
drm/i915: Use DRM_DEBUG_KMS() for framebuffer failure debug messages
DRM_UT_CORE generates way too much noise usually, so having the
framebuffer init failures use DRM_UT_CORE is a pain when trying to
find out the reason why you failed in creating a framebuffer.
Let's use DRM_UT_KMS for these debug messages instead.
v2: s/at less than/at most/ in the debug message (Imre)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170307194210.13400-6-ville.syrjala@linux.intel.com
Ville Syrjälä [Tue, 7 Mar 2017 19:42:09 +0000 (21:42 +0200)]
drm/i915: Pass the correct plane index to _intel_compute_tile_offset()
intel_fill_fb_info() should pass the correct plane index to
_intel_compute_tile_offset() once we start to care about the AUX
surface.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170307194210.13400-5-ville.syrjala@linux.intel.com
Ville Syrjälä [Tue, 7 Mar 2017 19:42:08 +0000 (21:42 +0200)]
drm/i915: Avoid div-by-zero when computing aux_stride w/o an aux plane
To make life easier let's allow skl_plane_stride() to be called for the
AUX surface even when there is no AUX surface. Avoids special cases in
the callers.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170307194210.13400-4-ville.syrjala@linux.intel.com
Ville Syrjälä [Tue, 7 Mar 2017 19:42:07 +0000 (21:42 +0200)]
drm/i915: Move nv12 chroma plane handling into intel_surf_alignment()
Let's try to keep the alignment requirements in one place, and so
towards that end let's move the AUX_DIST alignment handling into
intel_surf_alignment() alongside the main surface alignment stuff.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170307194210.13400-3-ville.syrjala@linux.intel.com
Ville Syrjälä [Tue, 7 Mar 2017 19:42:06 +0000 (21:42 +0200)]
drm/i915: Plumb drm_framebuffer into more places
Now that framebuffers can be used even before calling
drm_framebuffer_init() we can start to plumb them into more places,
instead of passing individual pieces for fb metadata.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170307194210.13400-2-ville.syrjala@linux.intel.com
Bing Niu [Wed, 8 Mar 2017 20:14:03 +0000 (15:14 -0500)]
drm/i915: suppress atomic commit error message under gvt-g env
under virtualization enviroment, it is possible guest update pipe
registers across vblank intervals due to overhead of mmio traps or vm
schedule out. However, it is safe since those pipe update happen in
virual registers and will not be committed to hardware. suppress that
atomic commit error message under virtualization case to avoid
confusing user.
v2: per ville's comment: return early and against Maarten's patch
v3: coding style clean
Signed-off-by: Bing Niu <bing.niu@intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1489004043-15449-1-git-send-email-bing.niu@intel.com
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Ville Syrjälä [Tue, 7 Mar 2017 20:54:19 +0000 (22:54 +0200)]
drm/i915: Nuke debug messages from the pipe update critical section
printks are slow so we should not be doing them from the vblank evade
critical section. These could explain why we sometimes seem to
blow past our 100 usec deadline.
The problem has been there ever since commit
bfd16b2a23dc ("drm/i915:
Make updating pipe without modeset atomic.") but it may not have
been readily visible until commit
e1edbd44e23b ("drm/i915: Complain
if we take too long under vblank evasion.") increased our chances
of noticing it.
Cc: stable@vger.kernel.org
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Fixes:
bfd16b2a23dc ("drm/i915: Make updating pipe without modeset atomic.")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170307205419.19447-1-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Daniel Vetter [Wed, 8 Mar 2017 09:54:45 +0000 (10:54 +0100)]
Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued
Backmerge drm-next to get at all the good stuff in drm-misc. We need
that because:
- drm_connector_list_iter conversion for i915 needs the core patches.
- Maarten's patches to use the new atomic state iterators also need
the core patches.
- We need the new link status property to complete the DP retraining
work, merging through 2 branches wasn't a good idea and we had to
partially backtrack.
- Chris needs reservation_object_trylock and we want to roll out
kref_read everywhere.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Dave Airlie [Wed, 8 Mar 2017 02:54:58 +0000 (12:54 +1000)]
Merge branch 'linux-4.12' of git://github.com/skeggsb/linux into drm-next
- Re-architecture of the code to handle proprietary fw, more abstracted
to support the multitude of differences that NVIDIA introduce
- Support in the said code for GP10x ACR and GR fw, giving acceleration
support \o/
- Fix for GTX 970 GPUs that are in an odd MMU configuration
* 'linux-4.12' of git://github.com/skeggsb/linux: (60 commits)
drm/nouveau/fb/gf100-: rework ram detection
drm/nouveau/fb/gm200: split ram implementation from gm107
drm/nouveau/fb/gf108: split implementation from gf100
drm/nouveau/fb/gf100-: modify constructors to allow more customisation
drm/nouveau/kms/nv50: use drm core i2c-over-aux algorithm
drm/nouveau/i2c/g94-: return REPLY_M value on reads
drm/nouveau/i2c: modify aux interface to return length actually transferred
drm/nouveau/gp10x: enable secboot and GR
drm/nouveau/gr/gp102: initial support
drm/nouveau/falcon: support for gp10x msgqueue
drm/nouveau/secboot: add gp102/gp104/gp106/gp107 support
drm/nouveau/secboot: put HS code loading code into own file
drm/nouveau/secboot: support for r375 ACR
drm/nouveau/secboot: support for r367 ACR
drm/nouveau/secboot: support for r364 ACR
drm/nouveau/secboot: workaround bug when starting SEC2 firmware
drm/nouveau/secboot: support standard NVIDIA HS binaries
drm/nouveau/secboot: support for unload blob bootloader
drm/nouveau/secboot: let callers interpret return value of blobs
drm/nouveau/secboot: support for different load and unload falcons
...
Dave Airlie [Wed, 8 Mar 2017 02:41:47 +0000 (12:41 +1000)]
Merge tag 'drm-intel-next-2017-03-06' of git://anongit.freedesktop.org/git/drm-intel into drm-next
4 weeks worth of stuff since I was traveling&lazy:
- lspcon improvements (Imre)
- proper atomic state for cdclk handling (Ville)
- gpu reset improvements (Chris)
- lots and lots of polish around fences, requests, waiting and
everything related all over (both gem and modeset code), from Chris
- atomic by default on gen5+ minus byt/bsw (Maarten did the patch to
flip the default, really this is a massive joint team effort)
- moar power domains, now 64bit (Ander)
- big pile of in-kernel unit tests for various gem subsystems (Chris),
including simple mock objects for i915 device and and the ggtt
manager.
- i915_gpu_info in debugfs, for taking a snapshot of the current gpu
state. Same thing as i915_error_state, but useful if the kernel didn't
notice something is stick. From Chris.
- bxt dsi fixes (Umar Shankar)
- bxt w/a updates (Jani)
- no more struct_mutex for gem object unreference (Chris)
- some execlist refactoring (Tvrtko)
- color manager support for glk (Ander)
- improve the power-well sync code to better take over from the
firmware (Imre)
- gem tracepoint polish (Tvrtko)
- lots of glk fixes all around (Ander)
- ctx switch improvements (Chris)
- glk dsi support&fixes (Deepak M)
- dsi fixes for vlv and clanups, lots of them (Hans de Goede)
- switch to i915.ko types in lots of our internal modeset code (Ander)
- byt/bsw atomic wm update code, yay (Ville)
* tag 'drm-intel-next-2017-03-06' of git://anongit.freedesktop.org/git/drm-intel: (432 commits)
drm/i915: Update DRIVER_DATE to
20170306
drm/i915: Don't use enums for hardware engine id
drm/i915: Split breadcrumbs spinlock into two
drm/i915: Refactor wakeup of the next breadcrumb waiter
drm/i915: Take reference for signaling the request from hardirq
drm/i915: Add FIFO underrun tracepoints
drm/i915: Add cxsr toggle tracepoint
drm/i915: Add VLV/CHV watermark/FIFO programming tracepoints
drm/i915: Add plane update/disable tracepoints
drm/i915: Kill level 0 wm hack for VLV/CHV
drm/i915: Workaround VLV/CHV sprite1->sprite0 enable underrun
drm/i915: Sanitize VLV/CHV watermarks properly
drm/i915: Only use update_wm_{pre,post} for pre-ilk platforms
drm/i915: Nuke crtc->wm.cxsr_allowed
drm/i915: Compute proper intermediate wms for vlv/cvh
drm/i915: Skip useless watermark/FIFO related work on VLV/CHV when not needed
drm/i915: Compute vlv/chv wms the atomic way
drm/i915: Compute VLV/CHV FIFO sizes based on the PM2 watermarks
drm/i915: Plop vlv/chv fifo sizes into crtc state
drm/i915: Plop vlv wm state into crtc_state
...
Chris Wilson [Tue, 7 Mar 2017 12:03:38 +0000 (12:03 +0000)]
drm/i915: Use pagecache write to prepopulate shmemfs from pwrite-ioctl
Before we instantiate/pin the backing store for our use, we
can prepopulate the shmemfs filp efficiently using a write into the
pagecache. We avoid the penalty of instantiating all the pages, important
if the user is just writing to a few and never uses the object on the GPU,
and using a direct write into shmemfs allows it to avoid the cost of
retrieving a page (mostly the clear-before-use, but in theory we could
curtail swapin) before it is overwritten.
This can be extended later to provide additional specialisation for
other backends (other than shmemfs). For now it provides a defense
against very large write-only allocations from exhausting all of system
memory.
v2: Smelling fixes.
Fixes:
fe115628d567 ("drm/i915: Implement pwrite without struct-mutex")
References: https://bugs.freedesktop.org/show_bug.cgi?id=99107
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.10+
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170307120338.7277-2-chris@chris-wilson.co.uk
Chris Wilson [Tue, 7 Mar 2017 13:20:31 +0000 (13:20 +0000)]
drm/i915: Store a permanent error in obj->mm.pages
Once the object has been truncated, it is unrecoverable. To facilitate
detection of this state store the error in obj->mm.pages.
This is required for the next patch which should be applied to v4.10
(via stable), so we also need to mark this patch for backporting. In
that regard, let's consider this to be a fix/improvement too.
v2: Avoid dereferencing the ERR_PTR when freeing the object.
Fixes:
1233e2db199d ("drm/i915: Move object backing storage manipulation to its own locking")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.10+
Link: http://patchwork.freedesktop.org/patch/msgid/20170307132031.32461-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Paulo Zanoni [Tue, 21 Feb 2017 21:23:27 +0000 (18:23 -0300)]
drm/i915: move the {skl, bxt}_{i, uni}nit_cdclk declarations
Move the {skl,bxt}_{i,uni}nit_cdclk declarations to the place where
the intel_cdclk.c functions are declared since these functions have
moved there.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1487712207-17181-1-git-send-email-paulo.r.zanoni@intel.com
Paulo Zanoni [Mon, 20 Feb 2017 20:00:41 +0000 (17:00 -0300)]
drm/i915: remove potentially confusing IS_G4X checks
The IS_G4X macro is defined as IS_G45 || IS_GM45. We have two points
in our code where we have an if statement checking for GM45 followed
by an else if statement checking for IS_G4X. This can be confusing
since the IS_G4X check won't be catching the previously-checked GM45.
Someone quickly trying to check which functions run on each platform
may end up getting confused while reading the code.
Fix the potential confusion by limiting the else if statements to only
check for the platform that was not already checked earlier in the if
ladder.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1487620842-22893-3-git-send-email-paulo.r.zanoni@intel.com
Chris Wilson [Tue, 7 Mar 2017 15:59:08 +0000 (15:59 +0000)]
drm/i915: Flush idle work when changing missed-irq fault injection
In order for the missed-irq update to take effect, the device must be
idle. So when the user updates the fault injection via debugfs, idle the
device.
v2: Idle is explicitly required for setting test_irq, and good behaviour
for clearing the missed_irq.
v3: Use matching types; expanding to more than ulong rings is left as an
exercise to the reader.
Testcase: igt/drv_missed_irq
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170307155908.14576-1-chris@chris-wilson.co.uk
Jani Nikula [Mon, 6 Mar 2017 14:31:30 +0000 (16:31 +0200)]
drm/i915/dsi: arrange intel_dsi.h according to relevant files
No functional changes.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Bob Paauwe <bob.j.paauwe@intel.com>
Cc: Madhav Chauhan <madhav.chauhan@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Bob Paauwe <bob.j.paauwe@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/fadc3b0de70d2c7db7a6ecbe7121328483330f04.1488810382.git.jani.nikula@intel.com
Jani Nikula [Mon, 6 Mar 2017 14:31:29 +0000 (16:31 +0200)]
drm/i915/dsi: rename intel_dsi_panel_vbt.c to intel_dsi_vbt.c
Emphasize that the VBT file is nowadays more about initializing and
running stuff based on the VBT contents, not so much about being a
"panel driver". No functional changes.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Bob Paauwe <bob.j.paauwe@intel.com>
Cc: Madhav Chauhan <madhav.chauhan@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Bob Paauwe <bob.j.paauwe@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/b13cb012a555ff5eb56b5e4bb2b0205c3e025a99.1488810382.git.jani.nikula@intel.com
Jani Nikula [Tue, 7 Mar 2017 09:24:19 +0000 (11:24 +0200)]
drm/i915/dsi: rename intel_dsi_pre_disable to intel_dsi_disable
The hook names reflect more the phase in the mode set sequence the hooks
are called in than what they actually do in terms of the specific
encoder. Stick to that scheme, and rename intel_dsi_pre_disable to
intel_dsi_disable. Unify the comments around this while at it. No
functional changes.
v2: Add more sense in the enable/disable hook comments (Ville)
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Bob Paauwe <bob.j.paauwe@intel.com>
Cc: Madhav Chauhan <madhav.chauhan@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Bob Paauwe <bob.j.paauwe@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1488878659-10386-1-git-send-email-jani.nikula@intel.com
Jani Nikula [Mon, 6 Mar 2017 14:31:27 +0000 (16:31 +0200)]
drm/i915/dsi: rename intel_dsi_exec_vbt_sequence to intel_dsi_vbt_exec_sequence
Use the prefix intel_dsi_vbt for all the DSI VBT functions. No
functional changes.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Bob Paauwe <bob.j.paauwe@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Madhav Chauhan <madhav.chauhan@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Bob Paauwe <bob.j.paauwe@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/0a05abca364f3bc7f9caf90c9bd3a68eef5f222f.1488810382.git.jani.nikula@intel.com
Jani Nikula [Mon, 6 Mar 2017 14:31:26 +0000 (16:31 +0200)]
drm/i915/dsi: stop using the drm_panel framework completely
Now that we've stopped using the drm_panel hooks, there aren't any
benefits left with using the drm_panel framework. Remove the rest of the
drm_panel use. No functional changes.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Bob Paauwe <bob.j.paauwe@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Madhav Chauhan <madhav.chauhan@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Bob Paauwe <bob.j.paauwe@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/6602e36641451952065092401bd6e6cfbe93e208.1488810382.git.jani.nikula@intel.com