Commit Graph

42537 Commits

Author SHA1 Message Date
Matthew Auld fe215c8bc4 drm/i915/selftests: add missing gtt shrinker test
Try to catch a bug we've seen in the wild where the shrinker purges the
pd/pdp from under us while allocating our paging structures.

References: https://bugs.freedesktop.org/show_bug.cgi?id=104773
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180131191453.12676-1-matthew.auld@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180131214440.7141-2-chris@chris-wilson.co.uk
2018-02-01 07:22:47 +00:00
Chris Wilson b715a2f0c7 drm/i915/ppgtt: Pin page directories before allocation
Commit e2b763caa6 ("drm/i915: Remove bitmap tracking for used-pdpes")
believed that because it did not insert its freshly allocated page
directory into the pd tree, it was safe from the shrinker. I failed to
heed the lesson learnt from commit dd19674bac ("drm/i915: Remove bitmap
tracking for used-ptes") that we need to pin all the levels in the tree
before hitting the shrinker or else the shrinker may free an upper layer
as we proceed to allocate the tree. Thus leaving dangling pointers
everywhere and a GPF should we hit direct reclaim at just the wrong
moment.

CPU: 0 PID: 7374 Comm: chromium Tainted: P           O    4.14.13-1-ARCH #1
Hardware name: Apple Inc. MacBookPro12,1/Mac-E43C1C25D4880AD6, BIOS MBP121.88Z.0167.B33.1706181928 06/18/2017
task: ffff994f696c2c40 task.stack: ffffb1a789d4c000
RIP: 0010:gen8_ppgtt_set_pde.isra.40+0x48/0x70 [i915]
RSP: 0018:ffffb1a789d4f940 EFLAGS: 00010206
RAX: 81c1788cc4f68138 RBX: ffff994f54db8000 RCX: ffff994f696c2c40
RDX: 000000023bc73003 RSI: ffff994d598b6b80 RDI: ffff994f54db8000
RBP: ffff994d598b6b80 R08: 0000000000000000 R09: 0000000000000000
R10: ffffb1a789d4f550 R11: ffff994eaf3c3208 R12: 0000000000000027
R13: 0000000000005000 R14: 0000000004e8f000 R15: ffff994f54dba000
FS:  00007f585886aa00(0000) GS:ffff994faec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004ac8e8 CR3: 00000002552c8004 CR4: 00000000003606f0
Call Trace:
 gen8_ppgtt_alloc_pdp+0x178/0x320 [i915]
 gen8_ppgtt_alloc_4lvl+0x5f/0x150 [i915]
 ppgtt_bind_vma+0x30/0x70 [i915]
 i915_vma_bind+0x68/0xd0 [i915]
 __i915_vma_do_pin+0x2d6/0x3a0 [i915]
 eb_lookup_vmas+0x7a2/0xb50 [i915]
 i915_gem_do_execbuffer+0x4d7/0x10e0 [i915]
 ? sock_wfree+0x34/0x60
 ? unix_stream_read_generic+0x1f9/0x7e0
 ? import_iovec+0x37/0xd0
 ? i915_gem_execbuffer2+0x5d/0x390 [i915]
 i915_gem_execbuffer2+0x1b7/0x390 [i915]
 ? i915_gem_execbuffer+0x2d0/0x2d0 [i915]
 drm_ioctl_kernel+0x59/0xb0 [drm]
 drm_ioctl+0x2d5/0x370 [drm]
 ? i915_gem_execbuffer+0x2d0/0x2d0 [i915]
 ? __seccomp_filter+0x3b/0x260
 do_vfs_ioctl+0xa1/0x610
 ? syscall_trace_enter+0xdb/0x2b0
 SyS_ioctl+0x74/0x80
 do_syscall_64+0x55/0x110
 entry_SYSCALL64_slow_path+0x25/0x25
RIP: 0033:0x7f584fa82d27
RSP: 002b:00007ffee14a7828 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000003b0126a1030 RCX: 00007f584fa82d27
RDX: 00007ffee14a7870 RSI: 0000000040406469 RDI: 0000000000000080
RBP: 00007ffee14a7870 R08: 0000000000000002 R09: 0000000000000077
R10: 00007f5839f2b780 R11: 0000000000000246 R12: 0000000040406469
R13: 0000000000000080 R14: 00007f5842b00040 R15: 0000000000000000
Code: 01 00 83 81 58 0a 00 00 01 48 2b 05 13 9d fd c9 48 c1 f8 06 48 c1 e0 0c 48 8d 04 d0 48 8b 56 08 48 03 05 0c 9d fd c9 48 83 ca 03 <48> 89 10 83 a9 58 0a 00 00 01 65 ff 0d 37 03 fb 3e 74 02 f3 c3
RIP: gen8_ppgtt_set_pde.isra.40+0x48/0x70 [i915] RSP: ffffb1a789d4f940

Reported-by: Eric Blau <eblau@eblau.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104773
Fixes: e2b763caa6 ("drm/i915: Remove bitmap tracking for used-pdpes")
References: dd19674bac ("drm/i915: Remove bitmap tracking for used-ptes")
Testcase: igt/drv_selftest/live_gtt (igt_ppgtt_shrink_boom)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180131214440.7141-1-chris@chris-wilson.co.uk
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
2018-02-01 07:22:35 +00:00
Paulo Zanoni 164daaf23c drm/i915/icl: allow the reg_read ioctl to read the RCS TIMESTAMP register
This enables the Mesa driver to advertise support for ARB_timer_query,
and thus an OpenGL version higher than 3.2.

Based on the CNL patch by Nanley Chery.

v2: Rebase.

Cc: Anuj Phogat <anuj.phogat@intel.com>
Cc: Nanley Chery <nanley.g.chery@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Requested-by: Anuj Phogat <anuj.phogat@intel.com>
Tested-by: Anuj Phogat <anuj.phogat@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180130134918.32283-10-paulo.r.zanoni@intel.com
2018-01-31 14:30:44 -02:00
Kelvin Gardiner 225701fc20 drm/i915/icl: Set graphics mode register for gen11
This patch clears a single bit. The bit is 0 by default but expected
not to be set. Explicitly clearing the bit in this patch is intended
to indicate some thinking has occurred, and that we want this bit
cleared and we are not just excepting the default value.

We also stop setting GFX_RUN_LIST_ENABLE, which is correct since that
bit is gone.

v2 (from Paulo): fix indentation.
v3: Changed GEN check to >= 11. Corrected author name.
v4 (from Paulo): improve commit message (Daniele).

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Kelvin Gardiner <kelvin.gardiner@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180130134918.32283-9-paulo.r.zanoni@intel.com
2018-01-31 14:29:52 -02:00
James Ausmus b597277643 drm/i915/icl: Handle expanded PLANE_CTL_FORMAT field
ICL+ adds changes the PLANE_CTL_FORMAT field from [27:24] to [27:23],
however, all existing PLANE_CTL_FORMAT_* definitions still map to the
correct values.  Add an ICL_PLANE_CTL_FORMAT_MASK definition, and use
that for masking for the conversion to fourcc.

v2: No changes

v3: Change new definition name, drop comment (Rodrigo)

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180130134918.32283-8-paulo.r.zanoni@intel.com
2018-01-31 14:28:50 -02:00
Paulo Zanoni 4357ce07e6 drm/i915/gen11: fix the SAGV block time for gen11
It's 10us for gen 11.

Reviewed-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Reviewed-by: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180130134918.32283-7-paulo.r.zanoni@intel.com
2018-01-31 14:21:12 -02:00
Mahesh Kumar 7800549716 drm/i915/icl: Introduce MBus related registers
This patch introduce MBus control registers and their bit-fields
MBUS_ABOX_CTL
MBUS_BBOX_CTL
MBUS_DBOX_CTL
MBUS_UBOX_CTL

Changes Since V1:
 - Use function like macros (Paulo)
 - fix copy-paste error (Paulo)

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180130134918.32283-6-paulo.r.zanoni@intel.com
2018-01-31 14:20:07 -02:00
Mahesh Kumar 234059da0f drm/i915/icl: NV12 y-plane ddb is not in same plane
We don't have planar pixel format support implemented for ICL yet.
ICL require 2 display planes to be allocated for Planar formats unlike
previous GEN. So ICL/GEN11 doesn't require to write Y-plane ddb data in
NV12_BUF_CFG register and PLANE_NV12_BUF_CFG register is removed in ICL.

This patch removes the PLANE_NV12_BUF_CFG write for ICL.

Changes Since V1:
 - Improve commit message as per Paulo's comment

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180130134918.32283-5-paulo.r.zanoni@intel.com
2018-01-31 14:19:51 -02:00
Mahesh Kumar 5b695aff3a drm/i915/icl: Fail flip if ddb allocated are less than min display buffer needed
ICL require DDB allocation of plane to be more than "minimum display
buffer needed" for each level in order to enable WM level.

This patch implements and consider the same while allocating DDB
and enabling WM.

Changes Since V1:
 - rebase
Changes Since V2:
 - Remove extra parentheses
 - Use FP16.16 only when absolutely necessary (Paulo)
Changes Since V3:
 - Rebase
Changes since v4 (from Paulo):
 - Coding style issue.
Changes since v5 (from Paulo):
 - Do the final checks according to BSpec.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180130134918.32283-4-paulo.r.zanoni@intel.com
2018-01-31 14:19:32 -02:00
Mahesh Kumar df8ee19087 drm/i915/icl: Do not fix dbuf block size to 512
GEN9/10 had fixed DBuf block size of 512. Dbuf block size is not a
fixed number anymore in GEN11, it varies according to bits per pixel
and tiling. If 8bpp & Yf-tile surface, block size = 256 else block
size = 512

This patch addresses the same.

v2 (from Paulo):
  - Make it compile.
  - Fix a few coding style issues.
v3:
  - Rebase on top of upstream patches
v4 (from Paulo):
  - Bikeshed if statements (James).

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180130134918.32283-3-paulo.r.zanoni@intel.com
2018-01-31 14:18:32 -02:00
Mahesh Kumar 9a9e3dfd6f drm/i915/icl: Don't allocate fixed bypass path blocks for ICL
GEN9 onwards bypass path allocation of 4 blocks was needed, as per
hardware design. ICL doesn't require bypass path allocation of 4 DDB
blocks, handling the same in this patch.

v2 (from Paulo):
  - No need for a comment that says what the code already says.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180130134918.32283-2-paulo.r.zanoni@intel.com
2018-01-31 14:18:13 -02:00
Chris Wilson 5b364bec5c drm/i915: Flush ggtt writes through the old fenced vma before changing fences
This is a precautionary measure as I have no evidence to suggest we've
hit a bug here (I was hoping this might explain gdg's odd behaviour, but
alas), but given that we have a function to flush the ggtt writes it
seems prudent to use it prior to changing the fence register. Due to the
intrinsic nature of the GTT often operating as an independent mmio path,
we should not just rely on the write to the fence acting as a full flush
for GTT writes.

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: https://patchwork.freedesktop.org/patch/msgid/20180130164457.14037-1-chris@chris-wilson.co.uk
2018-01-31 10:49:16 +00:00
Sagar Arun Kamble b1852d362f drm/i915/guc: Fix return from guc_log_relay_file_create
guc_log_relay_file_create will return -EEXIST if we invoke
relay_late_setup_files multiple times as part of i915_guc_log_control.
However this is to be not cosidered as fail and need to return 0.
This was mistakenly introduced in the below commit. Fix it.

Fixes: 70deeaddc6 "drm/i915/guc: Fix lockdep due to log relay channel handling under struct_mutex"
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1517379279-12967-1-git-send-email-sagar.a.kamble@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2018-01-31 10:46:02 +00:00
Chris Wilson 889230489b drm/i915: Always run hangcheck while the GPU is busy
Previously, we relied on only running the hangcheck while somebody was
waiting on the GPU, in order to minimise the amount of time hangcheck
had to run. (If nobody was watching the GPU, nobody would notice if the
GPU wasn't responding -- eventually somebody would care and so kick
hangcheck into action.) However, this falls apart from around commit
4680816be3 ("drm/i915: Wait first for submission, before waiting for
request completion"), as not all waiters declare themselves to hangcheck
and so we could switch off hangcheck and miss GPU hangs even when
waiting under the struct_mutex.

If we enable hangcheck from the first request submission, and let it run
until the GPU is idle again, we forgo all the complexity involved with
only enabling around waiters. We just have to remember to be careful that
we do not declare a GPU hang when idly waiting for the next request to
be come ready, as we will run hangcheck continuously even when the
engines are stalled waiting for external events. This should be true
already as we should only be tracking requests submitted to hardware for
execution as an indicator that the engine is busy.

Fixes: 4680816be3 ("drm/i915: Wait first for submission, before waiting for request completion"
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104840
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180129144104.3921-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
2018-01-31 10:10:43 +00:00
Rodrigo Vivi 53ddb3cdb0 drm/i915/cnl: Fix DP max rate for Cannonlake with port F.
On CNL SKUs that uses port F,  max DP rate is 8.1G for all
ports when we have the elevated voltage (higher than 0.85V).

v2: Make commit message more generic.
v3: Move conditions to a helper to get easier to read. (Ville).
v4: Add a mention to the numerical voltage on commit
    message per Manasi request.
v5: Thanks CI! "error: control reaches end of non-void function"

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180129232223.766-10-rodrigo.vivi@intel.com
2018-01-30 10:25:37 -08:00
Rodrigo Vivi 9787e835fa drm/i915/cnl: Enable DDI-F on Cannonlake.
Now let's finish the Port-F support by adding the
proper port F detection, irq and power well support.

v2: Rebase
v3: Use BIT_ULL
v4: Cover missed case on ddi init.
v5: Update commit message.
v6: Rebase on top of display headers rework.
v7: Squash power-well handling related to DDI F to this
    patch to avoid warns as pointed out by DK.
v8: Introduce DDI_F_LANES to PG2. (DK)
v9: Squash in the PORT_F case for enabling DP MST encoder. (DK)

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: David Weinehall <david.weinehall@linux.intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180129232223.766-9-rodrigo.vivi@intel.com
2018-01-30 10:24:22 -08:00
Rodrigo Vivi cf53902f48 drm/i915/cnl: Add HPD support for Port F.
On CNP boards that are using DDI F,
bit 25 (SDE_PORTE_HOTPLUG_SPT) is representing
the Digital Port F hotplug line when the Digital
Port F hotplug detect input is enabled.

v2: Reuse all existent structure instead of adding a
new HPD_PORT_F pointing to pin of port E.
v3: Use IS_CNL_WITH_PORT_F so we can start upstreaming
    this right now. If that SKU ever get a proper name
    we come back and update it.
v4: Rebase on top of digital connected port using encoder
    instead of port.
v5: Moved IS_CNL_WITH_PORT_F definition to the PCI IDs patch.

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180129232223.766-8-rodrigo.vivi@intel.com
2018-01-30 10:24:20 -08:00
Rodrigo Vivi 7533eb4f89 drm/i915: For HPD connected port use hpd_pin instead of port.
Let's try to simplify this mapping to hpd_pin -> bit
instead using port.
So for CNL with port F where we have this port using
hdp_pin and bits of other ports we don't need to duplicated
the mapping.

But for now this is only a re-org with no functional change
expected.

v2: Add missing lines and nuke @port reference from code
    documentation. (Ville)

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180129232223.766-7-rodrigo.vivi@intel.com
2018-01-30 10:24:19 -08:00
Rodrigo Vivi 3a2a59ccb1 drm/i915/cnl: Add right GMBUS pin number for HDMI on Port F.
On CNP Pin 3 is for misc of Port F usage depending on the
configuration. For CNL that uses Port F, pin 3 is the one.

v2: Make it more generic and update commit message.

Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180129232223.766-6-rodrigo.vivi@intel.com
2018-01-30 10:24:18 -08:00
Rodrigo Vivi 376faf8a3b drm/i915: Fix DPLCLKA_CFGCR0 bits for Port F.
Since when it got introduced with commit '555e38d27317
("drm/i915/cnl: DDI - PLL mapping")' the support for Port F
was wrong, because Port F bits are far from bits used
for A to E.

Since Port F is not used so far we don't need to propagate
Fixes back there.

v2: Reuse _SHIFT definition to avoid complicated duplication (DK).

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180129232223.766-5-rodrigo.vivi@intel.com
2018-01-30 10:24:17 -08:00
Rodrigo Vivi 8f942ed00e drm/i915/cnl: Fix _CNL_PORT_TX_DW2_LN0_F definition.
This was wrong since its introduction on commit '04416108ccea
("drm/i915/cnl: Add registers related to voltage swing sequences.")'

But since no Port F was needed so far we don't need to
propagate fixes back there.

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180129232223.766-4-rodrigo.vivi@intel.com
2018-01-30 10:24:16 -08:00
Rodrigo Vivi b1ae6a8b7a drm/i915/cnl: Extend Wa 1178 to Aux F.
We also need to extend this WA to Aux F.

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180129232223.766-3-rodrigo.vivi@intel.com
2018-01-30 10:24:15 -08:00
Rodrigo Vivi a324fcaca3 drm/i915/cnl: Add AUX-F support
On some Cannonlake SKUs we have a dedicated Aux for port F,
that is only the full split between port A and port E.

There is still no Aux E for Port E, as in previous platforms,
because port_E still means shared lanes with port A.

v2: Rebase.
v3: Add couple missed PORT_F cases on intel_dp.
v4: Rebase and fix commit message.
v5: Squash Imre's "drm/i915: Add missing AUX_F power well string"
v6: Rebase on top of display headers rework.
v7: s/IS_CANNONLAKE/IS_CNL_WITH_PORT_F (DK)
v8: Fix Aux bits for Port F (DK)
v9: Fix VBT definition of Port F (DK).
v10: Squash power well addition to this patch to avoid
     warns as pointed by DK.
v11: Clean up squashed commit message. (David)
v12: Remove unnecessary handling for older platforms (DK)
     Adding AUX_F to PG2 following other existent ones. (DK)

Cc: David Weinehall <david.weinehall@linux.intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: David Weinehall <david.weinehall@linux.intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180129232223.766-2-rodrigo.vivi@intel.com
2018-01-30 10:24:14 -08:00
Rodrigo Vivi 3f43031b16 drm/i915/cnl: Add Cannonlake PCI IDs for another SKU.
The only difference is that this SKUs has the full
Port A/E split named as Port F.

But since SKUs differences don't matter on the platform
definition group and ids, let's merge all off them together.

v2: Really include the PCI IDs to the picidlist[];
v3: Add the PCI Id for another SKU (Anusha).
v4: Update IDs, really include to pciidlists again.
v5: Unify all GT2 IDs.
v6: Unify in a way that we don't break early-quirks.c
v7: Remove GT reference since it doesn't matter here (Paulo)
    Also move IS_CNL_WITH_PORT_F macro to this patch to
    make it easier for review this part and also to get
    used sooner.
v8: Rebased on top of commit 5db47e37b3 ("Revert "drm/i915:
mark all device info struct with __initconst"")

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180129232223.766-1-rodrigo.vivi@intel.com
2018-01-30 10:24:12 -08:00
Imre Deak 394676f05b drm/i915: Add WA for planes ending close to left screen edge
While running the kms_plane clipping test I noticed a similar problem to
the one described in Display WA #1175. In this case, similarly for
planes other than the cursor, with 1 or 3 pixels visible from the left
edge of the screen to the end of the plane and an odd plane X offset
used for clipping causes the same kind of underflow and display
corruption as described for WA #1175. Fix this in a similar way as that
WA rejecting planes ending <4 pixels from the left screen edge.

v2:
- Rebase on v2 of patch 1/1.

Testcase: igt/kms_plane/plane-clipping-pipe-*-planes
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180116112415.22060-2-imre.deak@intel.com
2018-01-30 16:40:12 +02:00
Imre Deak c322c64952 drm/i915: Add display WA #1175 for planes ending close to right screen edge
As described in the WA on GLK and CNL planes on the right edge of the
screen that have less than 4 pixels visible from the beginning of the
plane to the edge of the screen can cause FIFO underflow and display
corruption.

On GLK/CNL I could trigger the problem only if the plane was at the same
time also aligned to the top edge of the screen (after clipping) and
there were exactly 2 pixels visible from the start of the plane to the
right edge of the screen (so couldn't trigger it with 1 or 3 pixels
visible). Nevertheless, to be sure, I also applied the WA for these cases.

I also couldn't see any problem with the cursor plane and later Art
confirmed that it's not affected, so the WA is applied only for the
other plane types.

v2:
- Use -ERANGE instead of -EINVAL. (Chris)

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180116112415.22060-1-imre.deak@intel.com
2018-01-30 16:39:50 +02:00
Rodrigo Vivi 3393ce1ed8 drm/i915/cnp: Properly handle VBT ddc pin out of bounds.
If the table result is out of bounds on the array map
there is something really wrong with VBT pin so we don't
return that vbt_pin, but only return 0 instead.

This basically reverts commit 'a8e6f3888b05 ("drm/i915/cnp:
Ignore VBT request for know invalid DDC pin.")'

Also this properly fixes commit 9c3b2689d0 ("drm/i915/cnl:
Map VBT DDC Pin to BSpec DDC Pin.")

v2: Do in a way that we don't break other platforms. (Jani)

v3: Keep debug message (Jani)

v4: Don't mess with 0 mapping was noticed by Jani and
    addressed with a simple solution suggested by Lucas
    that makes this even simpler.

Fixes: a8e6f3888b ("drm/i915/cnp: Ignore VBT request for know invalid DDC pin.")
Fixes: 9c3b2689d0 ("drm/i915/cnl: Map VBT DDC Pin to BSpec DDC Pin.")
Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Kai Heng Feng <kai.heng.feng@canonical.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Suggested-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180125222524.22059-1-rodrigo.vivi@intel.com
2018-01-29 14:11:56 -08:00
Chris Wilson c7cc144d8f drm/i915: Assert that we do not try to unsubmit a completed request
Assert that we do not try to unsubmit a completed request, as should we
try to resubmit it later, the ring is already past the request's
breadcrumb and the breadcrumb will not be updated.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180129094912.14428-1-chris@chris-wilson.co.uk
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
2018-01-29 15:38:56 +00:00
Chris Wilson 7fb9ee5db2 drm/i915: Simplify guard logic for setup_scratch_page()
Older gcc is complaining it can't follow the guards and thinks that
addr may be used uninitialised

In the process, we can simplify down to one loop,
add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-131 (-131)
Function                                     old     new   delta
setup_scratch_page                           545     414    -131

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180129102840.19901-1-chris@chris-wilson.co.uk
2018-01-29 15:37:53 +00:00
Joonas Lahtinen 74c0167f8b Merge drm-next into drm-intel-next-queued
Pull 4.15 into drm-intel-next-queued for next feature pull.

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2018-01-29 11:51:57 +02:00
Lionel Landwerlin 5db47e37b3 Revert "drm/i915: mark all device info struct with __initconst"
This reverts commit 5b54eddd39.

 Conflicts:
	drivers/gpu/drm/i915/i915_pci.c

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104805
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Fixes: 5b54eddd39 ("drm/i915: mark all device info struct with __initconst")
Link: https://patchwork.freedesktop.org/patch/msgid/20180129083346.29173-1-lionel.g.landwerlin@intel.com
2018-01-29 09:25:05 +00:00
Chris Wilson 1d2a19c256 drm/i915/lrc: Remove superfluous WARN_ON
Remove the WARN_ON(ce->state) inside the static function only called
when ce->state == NULL and downgrade the w/a batch setup warning into a
developer only mode (GEM_WARN_ON).

v2: Move the deferred alloc guard into the callee, eliminating the need
for the WARN_ON:
add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-1 (-1)
Function                                     old     new   delta
execlists_context_pin                       1819    1818      -1

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: https://patchwork.freedesktop.org/patch/msgid/20180126121846.12007-1-chris@chris-wilson.co.uk
2018-01-26 13:03:07 +00:00
Chris Wilson 09b1a4e4b5 drm/i915/lrc: Clear context restore/save inhibit flags for new contexts
CTX_CONTEXT_CONTROL (CTX_SR_CTL) operates as a masked register and so
will only apply the bits that are selected by the upper half. In the
case of selectively enabling sr inhibit, this may mean the context keeps
the current setting (so forgetting to save the context later, eventually
leading to a very upset GPU!).

Fixes: 517aaffe0c ("drm/i915/execlists: Inhibit context save/restore for the fake preempt context")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180125112443.12745-1-chris@chris-wilson.co.uk
Reviewed-by: Michel Thierry <michel.thierry@intel.com>
2018-01-25 18:04:25 +00:00
Dave Airlie 559f17bec5 Fixes for 4.16:
Fixes one Kconfig issue and a enable some panels to work properly.
 There is also a fix of error code return in sun4i.
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Merge tag 'drm-misc-next-fixes-2018-01-18' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

Fixes for 4.16:

Fixes one Kconfig issue and a enable some panels to work properly.
There is also a fix of error code return in sun4i.

* tag 'drm-misc-next-fixes-2018-01-18' of git://anongit.freedesktop.org/drm/drm-misc:
  drm: Fix PANEL_ORIENTATION_QUIRKS breaking the Kconfig DRM menuconfig
  drm/panel: lvds: Handle the optional regulator case properly
  drm/sun4i: Fix error code in sun4i_tcon_bind()
2018-01-25 11:42:25 +10:00
Dave Airlie 22bc72c807 Merge branch 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux into drm-next
A few more fixes for 4.16, nothing major.

A few more fixes for 4.16.  This is on top of the pull request from
last week.  Most notable change here is a fix to the link order for
the now separate from amdgpu GPU scheduler to fix crashes when the
modules are build into the kernel rather than as modules.

* 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux:
  drm: fix gpu scheduler link order
  drm/amd/display: Demote error print to debug print when ATOM impl missing
  drm/amdgpu: Avoid leaking PM domain on driver unbind (v2)
  drm/amd/amdgpu: Add Polaris version check
  drm/amdgpu: Reenable manual GPU reset from sysfs
  drm/amdgpu: disable MMHUB power gating on raven
  drm/ttm: Don't unreserve swapped BOs that were previously reserved
  drm/ttm: Don't add swapped BOs to swap-LRU list
  drm/amdgpu: only check for ECC on Vega10
  drm/amd/powerplay: Fix smu_table_entry.handle type
  drm/ttm: add VADDR_FLAG_UPDATED_COUNT to correctly update dma_page global count
  drm/radeon: fill in rb backend map on evergreen/ni.
  drm/amdgpu/gfx9: fix ngg enablement to clear gds reserved memory (v2)
  drm/ttm: only free pages rather than update global memory count together
  drm/amdgpu: fix CPU based VM updates
  drm/amdgpu: fix typo in amdgpu_vce_validate_bo
  drm/amdgpu: fix amdgpu_vm_pasid_fault_credit
  drm/ttm: check the return value of register_shrinker
  drm/radeon: fix sparse warning: Should it be static?
2018-01-25 11:40:54 +10:00
Christian König 87440329b0 drm: fix gpu scheduler link order
It should initialize before the drivers using it.

Signed-off-by: Christian König <christian.koenig@amd.com>
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=104736
Reviewed-by: Mike Lothian <mike@fireburn.co.uk>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-01-24 15:49:04 -05:00
Harry Wentland 30305f58eb drm/amd/display: Demote error print to debug print when ATOM impl missing
I assumed wrongfully that all relevant functions should be implemented.
Apparently this isn't the case. Demote the print to debug level for now.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-01-24 15:47:25 -05:00
Sagar Arun Kamble 2fcf06805c drm/i915/guc: Fix comments style in intel_guc_log.c
Use consistent multi-line comment style as per guideline.

v2: Reverted comments prefix update to kernel-doc comment. (Chris)

Suggested-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/1516808821-3638-5-git-send-email-sagar.a.kamble@intel.com
2018-01-24 19:44:07 +00:00
Sagar Arun Kamble 065dd5ad6c drm/i915/guc: Update name and prototype of i915_guc_log_control
i915_guc_log_control is GuC interface and GuC APIs that are not user
facing should be named with "intel_guc" prefix hence we change name to
intel_guc_log_control. Also changed the parameter to intel_guc struct.

v2: Move log vma check to intel_guc_log_control (Michal)
    Return -ENODEV when log isn't initialized. (Chris)

Suggested-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/1516808821-3638-4-git-send-email-sagar.a.kamble@intel.com
2018-01-24 19:44:06 +00:00
Sagar Arun Kamble 70deeaddc6 drm/i915/guc: Fix lockdep due to log relay channel handling under struct_mutex
This patch fixes lockdep issue due to circular locking dependency of
struct_mutex, i_mutex_key, mmap_sem, relay_channels_mutex.
For GuC log relay channel we create debugfs file that requires i_mutex_key
lock and we are doing that under struct_mutex. So we introduced newer
dependency as:
    &dev->struct_mutex --> &sb->s_type->i_mutex_key#3 --> &mm->mmap_sem
However, there is dependency from mmap_sem to struct_mutex. Hence we
separate the relay create/destroy operation from under struct_mutex.
Also added runtime check of relay buffer status.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

======================================================
WARNING: possible circular locking dependency detected
4.15.0-rc6-CI-Patchwork_7614+ #1 Not tainted
------------------------------------------------------
debugfs_test/1388 is trying to acquire lock:
 (&dev->struct_mutex){+.+.}, at: [<00000000d5e1d915>] i915_mutex_lock_interruptible+0x47/0x130 [i915]

but task is already holding lock:
 (&mm->mmap_sem){++++}, at: [<0000000029a9c131>] __do_page_fault+0x106/0x560

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #3 (&mm->mmap_sem){++++}:
       _copy_to_user+0x1e/0x70
       filldir+0x8c/0xf0
       dcache_readdir+0xeb/0x160
       iterate_dir+0xdc/0x140
       SyS_getdents+0xa0/0x130
       entry_SYSCALL_64_fastpath+0x1c/0x89

-> #2 (&sb->s_type->i_mutex_key#3){++++}:
       start_creating+0x59/0x110
       __debugfs_create_file+0x2e/0xe0
       relay_create_buf_file+0x62/0x80
       relay_late_setup_files+0x84/0x250
       guc_log_late_setup+0x4f/0x110 [i915]
       i915_guc_log_register+0x32/0x40 [i915]
       i915_driver_load+0x7b6/0x1720 [i915]
       i915_pci_probe+0x2e/0x90 [i915]
       pci_device_probe+0x9c/0x120
       driver_probe_device+0x2a3/0x480
       __driver_attach+0xd9/0xe0
       bus_for_each_dev+0x57/0x90
       bus_add_driver+0x168/0x260
       driver_register+0x52/0xc0
       do_one_initcall+0x39/0x150
       do_init_module+0x56/0x1ef
       load_module+0x231c/0x2d70
       SyS_finit_module+0xa5/0xe0
       entry_SYSCALL_64_fastpath+0x1c/0x89

-> #1 (relay_channels_mutex){+.+.}:
       relay_open+0x12c/0x2b0
       intel_guc_log_runtime_create+0xab/0x230 [i915]
       intel_guc_init+0x81/0x120 [i915]
       intel_uc_init+0x29/0xa0 [i915]
       i915_gem_init+0x182/0x530 [i915]
       i915_driver_load+0xaa9/0x1720 [i915]
       i915_pci_probe+0x2e/0x90 [i915]
       pci_device_probe+0x9c/0x120
       driver_probe_device+0x2a3/0x480
       __driver_attach+0xd9/0xe0
       bus_for_each_dev+0x57/0x90
       bus_add_driver+0x168/0x260
       driver_register+0x52/0xc0
       do_one_initcall+0x39/0x150
       do_init_module+0x56/0x1ef
       load_module+0x231c/0x2d70
       SyS_finit_module+0xa5/0xe0
       entry_SYSCALL_64_fastpath+0x1c/0x89

-> #0 (&dev->struct_mutex){+.+.}:
       __mutex_lock+0x81/0x9b0
       i915_mutex_lock_interruptible+0x47/0x130 [i915]
       i915_gem_fault+0x201/0x790 [i915]
       __do_fault+0x15/0x70
       __handle_mm_fault+0x677/0xdc0
       handle_mm_fault+0x14f/0x2f0
       __do_page_fault+0x2d1/0x560
       page_fault+0x4c/0x60

other info that might help us debug this:

Chain exists of:
  &dev->struct_mutex --> &sb->s_type->i_mutex_key#3 --> &mm->mmap_sem

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&mm->mmap_sem);
                               lock(&sb->s_type->i_mutex_key#3);
                               lock(&mm->mmap_sem);
  lock(&dev->struct_mutex);

 *** DEADLOCK ***

1 lock held by debugfs_test/1388:
 #0:  (&mm->mmap_sem){++++}, at: [<0000000029a9c131>] __do_page_fault+0x106/0x560

stack backtrace:
CPU: 2 PID: 1388 Comm: debugfs_test Not tainted 4.15.0-rc6-CI-Patchwork_7614+ #1
Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./J4205-ITX, BIOS P1.10 09/29/2016
Call Trace:
 dump_stack+0x5f/0x86
 print_circular_bug.isra.18+0x1d0/0x2c0
 __lock_acquire+0x14ae/0x1b60
 ? lock_acquire+0xaf/0x200
 lock_acquire+0xaf/0x200
 ? i915_mutex_lock_interruptible+0x47/0x130 [i915]
 __mutex_lock+0x81/0x9b0
 ? i915_mutex_lock_interruptible+0x47/0x130 [i915]
 ? i915_mutex_lock_interruptible+0x47/0x130 [i915]
 ? i915_mutex_lock_interruptible+0x47/0x130 [i915]
 i915_mutex_lock_interruptible+0x47/0x130 [i915]
 ? __pm_runtime_resume+0x4f/0x80
 i915_gem_fault+0x201/0x790 [i915]
 __do_fault+0x15/0x70
 ? _raw_spin_unlock+0x29/0x40
 __handle_mm_fault+0x677/0xdc0
 handle_mm_fault+0x14f/0x2f0
 __do_page_fault+0x2d1/0x560
 ? page_fault+0x36/0x60
 page_fault+0x4c/0x60

v2: Added lock protection to guc->log.runtime.relay_chan (Chris)
    Fixed locking inside guc_flush_logs uncovered by new lockdep.

v3: Locking guc_read_update_log_buffer entirely with relay_lock. (Chris)
    Prepared intel_guc_init_early. Moved relay_lock inside relay_create
    relay_destroy, relay_file_create, guc_read_update_log_buffer. (Michal)
    Removed struct_mutex lock around guc_log_flush and removed usage
    of guc_log_has_relay() from runtime_create path as it needs
    struct_mutex lock.

v4: Handle NULL relay sub buffer pointer earlier in read_update_log_buffer
    (Chris). Fixed comment suffix **/. (Michal)

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104693
Testcase: igt/debugfs_test/read_all_entries # with enable_guc=1 and guc_log_level=1
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Marta Lofstedt <marta.lofstedt@intel.com>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/1516808821-3638-3-git-send-email-sagar.a.kamble@intel.com
2018-01-24 19:44:04 +00:00
Sagar Arun Kamble 1ed21cb414 drm/i915/guc: Enable interrupts before resuming GuC during runtime resume
GuC log streaming needs interrupts enabled prior to GuC resume but
runtime pm interrupt setup was happening post GuC resume. Fix it.
While at it, fix the unwinding of steps in the runtime suspend path.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104695
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Marta Lofstedt <marta.lofstedt@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/1516808821-3638-2-git-send-email-sagar.a.kamble@intel.com
2018-01-24 19:44:03 +00:00
Sagar Arun Kamble 1be333d34e drm/i915/guc: Grab RPM wakelock while disabling GuC interrupts
Disabling GuC interrupts involves access to GuC IRQ control registers
hence ensure device is RPM awake.

v1-v2: old changelog
1: Add comment about need to synchronize flush work and log runtime
   destroy
2: Moved patch earlier in the series and removed comment about future
work. (Tvrtko)

v3: Added assert_rpm_wakelock_held() to gen9_*_guc_interrupts. (Chris)

Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@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>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/1516808821-3638-1-git-send-email-sagar.a.kamble@intel.com
2018-01-24 19:44:02 +00:00
Ville Syrjälä 16af25faae drm/i915: Add a comment exlaining CCS hsub/vsub
Let's document why we claim hsub==8,vsub==16 for CCS.

v2: Replace my explanation with Jason's

Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Cc: Daniel Stone <daniels@collabora.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180119144152.17224-1-ville.syrjala@linux.intel.com
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2018-01-24 20:13:53 +02:00
Ville Syrjälä 0519c102f5 drm/i915: Implement display w/a #1143
Apparently SKL/KBL/CFL need some manual help to get the
programmed HDMI vswing to stick. Implement the relevant
workaround (display w/a #1143).

Note that the relevant chicken bits live in a transcoder register
even though the bits affect a specific DDI port rather than a
specific transcoder. Hence we must pick the correct transcoder
register instance based on the port rather than based on the
cpu_transcoder.

Also note that for completeness I included support for DDI A/E
in the code even though we never have HDMI on those ports.

v2: CFL needs the w/a as well (Rodrigo and Art)

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Art Runyan <arthur.j.runyan@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180122174131.28046-1-ville.syrjala@linux.intel.com
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-01-24 20:09:29 +02:00
Ville Syrjälä c19e1124e7 drm/i915: Use enum plane_id for frontbuffer tracking
Replace the ad-hoc plane indexing scheme used by the frontbuffer
tracking with enum plane_id.

The old video overlay not being part of the plane_id namespace
will just be given the high bit.

v2: Drop the unintended whitespace change (Chris)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180123183343.9181-1-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2018-01-24 19:13:59 +02:00
Chris Wilson 84a1074920 drm/i915: Shrink the GEM kmem_caches upon idling
When we finally decide the gpu is idle, that is a good time to shrink
our kmem_caches.

v3: Defer until an rcu grace period after we idle.
v4: Think about epoch wraparound and how likely that is.
v5: Use I915_EPOCH_INVALID magic.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180124113608.14909-2-chris@chris-wilson.co.uk
2018-01-24 15:28:37 +00:00
Chris Wilson 6f56103d7e drm/i915: Track the number of times we have woken the GPU up
By counting the number of times we have woken up, we have a very simple
means of defining an epoch, which will come in handy if we want to
perform deferred tasks at the end of an epoch (i.e. while we are going
to sleep) without imposing on the next activity cycle.

v2: No reason to specify precise number of bits here.
v3: Take Tvrtko's advice and reserve 0 as an invalid epoch.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180124113608.14909-1-chris@chris-wilson.co.uk
2018-01-24 15:28:05 +00:00
Chris Wilson 517aaffe0c drm/i915/execlists: Inhibit context save/restore for the fake preempt context
We only use the preempt context to inject an idle point into execlists.
We never need to reference its logical state, so tell the GPU never to
load it or save it.

v2: BIT(2) for save-inhibit.

N.B. Daniele mentioned this bit mbz for ICL, and has been moved into the
submission process rather than the context image.

Suggested-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Michel Thierry <michel.thierry@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180123210412.17653-1-chris@chris-wilson.co.uk
2018-01-24 09:40:15 +00:00
Michel Thierry 578f1ac689 drm/i915: Move LRC register offsets to a header file
Newer platforms may have subtle offset changes, which will increase the
number of defines, so it is probably better to start moving them to its
own header file. Also move the macros used while setting the reg state.

v2: Rename to intel_lrc_reg.h, to be consistent with i915_reg.h and
intel_guc_reg.h (Chris)
v3: License notice shenanigans.
v4: Documentation/process/coding-style.rst is always right (Chris)
v5: Rebase.

Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180124004349.22126-2-michel.thierry@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2018-01-24 09:22:55 +00:00
Michel Thierry 751d115302 drm/i915/lrc: Update reg_state macros to pass checkpatch
The macros we use to init the reg_state had the following issues reported
by checkpatch --strict.

  Macro argument reuse 'reg_state' - possible side-effects
  Macro argument reuse 'pos' - possible side-effects
  Macro argument reuse 'ppgtt' - possible side-effects
  spaces preferred around that '+' (ctx:VxV)

So fix these issues before they are moved to a new header file.

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180124004349.22126-1-michel.thierry@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2018-01-24 09:19:38 +00:00