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Tracing vm eviction is really the event we care about. For the cases we
evict everything, we still will get the trace.
v2: Add the drm device to the trace since we might not be the only
device in the system. (Chris)
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Since I already reorganized the header file, Daniel requested me to
remove those keywords. It seems "checkpath.pl --strict" also doesn't
like "extern" on header files.
At least now we're consistent :)
Requested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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These functions were added before the final PC8 implementation, and
their callers moved to intel_display.c during the code review.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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By moving them to intel_fb.c.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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And move it so it doesn't need a forward declaration.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Also move it to the top of the file so we can remove the forward
declaration.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Daniel complained that we keep adding stuff to the bottom of the file,
so we constantly have conflicts. So reorganize everything and split
them file-by-file, also sorting the files in alphabetical order. This
way, patches touching different files will have a smaller chance of
conflicting. Of course, this commit will conflict with everybody on
the list :)
Also remove a few useless comments and make some things fit into 80
lines.
v2: - Conflict with intel_ddi_get_config
Requested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Not valid for later non-PCH split platforms such as VLV.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Call intel_ddi_get_config() to get the pipe_bpp settings from
DDI.
The sync polarity settings from DDI are irrelevant for CRT
output, so override them with data from the ADPA register.
v2: Extract intel_crt_get_flags()
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=69691
Tested-by: Qingshuai Tian <qingshuai.tian@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Flat out skip anything to do with PLL if we have a DSI encoder (and thus
DSI PLL). Also skip PLL computation if the encoder has already set
clocks. This allows for some tidying up of the code, including a
superfluous call to intel_limit() for LVDS downclock path.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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During SDVO initialisation it would be useful to a have a record of the
individual devices we try to enable and later probe - in particular to
be able to see which fail.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Obtaining the forcwake requires expensive and time consuming
serialisation. And we often try to obtain the forcewake multiple times
in very quick succession. We can reduce the overhead of these sequences
by delaying the forcewake release, and so not hammer the hw quite so
hard.
I was hoping this would help with the spurious
[drm:__gen6_gt_force_wake_mt_get] *ERROR* Timed out waiting for forcewake old ack to clear.
found on Haswell. Alas not.
v2: Fix teardown ordering - unmap the regs after turning off forcewake,
and make sure we do turn off forcewake - both found by Ville.
v3: As we introduce intel_uncore_fini(), use it to make sure everything
is disabled before we hand back to the BIOS.
Note: I have no claims for improved performance, stablity or power
comsumption for this patch. We should not be hitting the registers often
enough for this to improve benchmarks, but given the nature of our hw it
is likely to improve long term stability.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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The | operation has higher precedence than "?:" so the macro always
returns GT_RENDER_L3_PARITY_ERROR_INTERRUPT_S1.
This regression has been introduce in "drm/i915: Add second slice l3
remapping".
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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i9xx_crtc_clock_get() no longer populates adjusted_mode.clock, so we
must get the pixel clock from port_clock in intel_crtc_mode_get().
This bug caused Chris's 845g machine to lockup during boot, and it
was introduced in:
commit 18442d08786472c63a0a80c27f92b033dffc26de
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Fri Sep 13 16:00:08 2013 +0300
drm/i915: Fix port_clock and adjusted_mode.clock readout all over
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=69713
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Future generations will be changing these registers (thanks to design
for giving us an early heads up). To help abstract, create the
definition of the base of the register block, and define all registers
relative to that.
Design has promised to not change the offsets relative to the base.
v2: Also change IS_HASWELL checks to HAS_PSR
CC: Rodrigo Vivi <rodrigo.vivi@gmail.com>
CC: Intel GFX <intel-gfx@lists.freedesktop.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Reduce AUX transactions for non-eDP.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We already restore planes during the modeset operation, so no need to do
another loop over the planes and try to restore them again.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Call intel_uncore_early_sanitize() first thing during resume to prevent
stale BIOS leftovers from being reported as unclaimed register access.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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i915_restore_state() -> i915_restore_display() will attempt to
re-disable VGA during resume. So the power well needs to be powered on
before that.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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intel_modeset_init() will already attempt to disable VGA. In order to do
that, it needs the power well to be on. So move the power well init
to happen before intel_modeset_init() during driver load.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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The VGA plane needs to be disabled before we start doing any
modeset operations on resume.
This should also guarantee that the power well will be enabled
when we call i915_redisable_vga() since it gets explicitly powered on
during resume, and will get powered back off during the modeset
operation if no longer needed.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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VGA registers live inside the power well on HSW, so in order to write
the VGA MSR register we need the power well to be on.
We really must write to the register to properly clear the
VGA_MSR_MEM_EN enable bit, even if all VGA registers get zeroed when
the power well is down. It seems that the implicit zeroing done by
the power well is not enough to propagate the VGA_MSR_MEM_EN bit to
whomever is actually responsible for the memory decode ranges.
If we leave VGA memory decode enabled, and then turn off the power well,
all VGA memory reads will return zeroes. But if we first disable VGA
memory deocde and then turn off the power well, VGA memory reads
return all ones, indicating that the access wasn't claimed by anyone.
For the vga arbiter to function correctly the IGD must not claim the
VGA memory accesses.
Previously we were doing the VGA_MSR register access while the power well
was excplicitly powered up during driver init. But ever since
commit 6e1b4fdad5157bb9e88777d525704aba24389bee
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Thu Sep 5 20:40:52 2013 +0300
drm/i915: Delay disabling of VGA memory until vgacon->fbcon handoff is done
we delay the VGA memory disable until fbcon has initialized, and so
there's a possibility that the power well got turned off during the
fbcon modeset. Also vgacon_save_screen() will need the power well to be
on to be able to read the VGA memory.
So immediately after enabling the power well during init grab a refence
for VGA purposes, and after all the VGA handling is done, release it.
v2: Add intel_display_power_put() for the num_pipes==0 case
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: Fix up the patch wiggle screw-up that I've done and which
Paulo catched. Also polish spelling in the patch headline.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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It only controls the setting of the vbt.edp_support variable, which in
turn only controls one debug output plus can also force-disable the
lvds output.
Since the value only restricted this logic to mobile ilk there's the
slight risk that this will break lvds on desktop ilk or on snb/ivb
platforms. But with the vbt it's better when we know what's going on
here, so let's rip it out and see what happens.
Cc: Ben Widawsky <benjamin.widawsky@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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There's no reason to init a DP connector if the encoder just supports
HDMI: we'll just waste hundreds and hundreds of cycles trying to do DP
AUX transactions to detect if there's something there. Same goes for a
DP connector that doesn't support HDMI, but I'm not sure these
actually exist.
v2: - Use bit fields
- Remove useless identation level
- Replace DRM_ERROR with DRM_DEBUG_KMS
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com> (v1)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Our code makes a lot of assumptions regarding what each DDI port
actually supports, and the VBT should tell us what is really happening
in the hardware. So parse the information provided by the VBT and
check if any of our assumptions is wrong.
Our driver also has a history of not really trusting the VBT, so a
WARN here could mean that:
a) our coding assumptions are wrong
b) the VBT is wrong
c) we're incorrectly parsing the VBT
d) the checks are wrong
But I really hope we won't ever trigger any of those WARNs.
v2: Don't check the redundant "Capabilities" field from byte 24 since
it doesn't seem to be used.
v3: Rebase
v4: Replace WARN with DRM_DEBUG_KMS
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com> (v2)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Our code currently assumes that port X will use the DP AUX channel X
and the DDC pin X. The VBT should tell us how things are mapped, so
add some WARNs in case we discover our assumptions are wrong (or in
case the VBT is just wrong, which is also perfectly possible).
Why would someone wire port B to AUX C and DDC D?
v2: Rebase
v3: Convert WARNs to DRM_DEBUG_KMS
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com> (v1)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We currently use the recommended values from BSpec, but the VBT
specifies the correct value to use for the hardware we have, so use
it. We also fall back to the recommended value in case we can't find
the VBT.
In addition, this code also provides some infrastructure to parse more
information about the DDI ports. There's a lot more information we
could extract and use in the future.
v2: - Move some code to init_vbt_defaults.
v3: - Rebase
- Clarify the "DVO Port" matching code
v4: - Use I915_MAX_PORTS
- Change the HAS_DDI checks
- Replace DRM_ERROR with DRM_DEBUG_KMS
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We currently treat the child_device_config as a simple struct, but
this is not correct: new BDB versions change the meaning of some
offsets, so the struct needs to be adjusted for each version.
Since there are too many changes (today we're in version 170!), making
a big versioned union would be too complicated, so child_device_config
is now a union of 3 things: (i) a "raw" byte array that's safe to use
anywhere; (ii) an "old" structure that's the one we've been using and
should be safe to keep in the SDVO and TV code; and (iii) a "common"
structure that should contain only fields that are common for all the
known VBT versions.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We never took the lock ourselves and all callers expect the struct_mutex
to be locked upon return (be it success or error), thereore dropping the
lock along the error paths looks to be a vestigial error from
commit db1b76ca6a79c774074ae87bee7afc0825a478f5
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue Jul 9 16:51:37 2013 +0200
drm/i915: don't frob mm.suspended when not using ums
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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There's actually no real risk since we already check for stricter
constraints earlier (using UINT_MAX / sizeof (struct
drm_i915_gem_exec_object2) as the limit). But in eb_create we use
signed integers, which steals a factor of 2. Luckily struct
drm_i915_gem_exec_object2 for this to not matter.
Still, be consistent and use unsigned integers.
Similar use unsinged integers when checking for overflows in the
relocation entry processing.
I've also added a new subtests to igt/gem_reloc_overflow to also
test for overflowing args->buffer_count values.
v2: Give the variables again tighter scope to make it clear that the
computation is purely local and doesn't leak out to the 2nd block.
Requested by Chris Wilson.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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And the gratious overallocation of crtcs. Seems to go back to the ums
days of yonder ...
We also still need it to make the fbdev emulation happy, but I don't
think there's really a need. Especially since the current fbdev
emulation doesn't actually support cloning.
v2: Use sizeof(*pointer) pattern (Jani).
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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No buffer overflows here, but better safe than sorry.
v2:
- Fixup the sizeof conversion, I've missed the pointer deref (Jani).
- Drop the redundant GFP_ZERO, kcalloc alreads memsets (Jani).
- Use kmalloc_array for the execbuf fastpath to avoid the memset
(Chris). I've opted to leave all other conversions as-is since they
aren't in a fastpath and dealing with cleared memory instead of
random garbage is just generally nicer.
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
[danvet: Drop the contentious kmalloc_array hunk in execbuf.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Done while reviewing all our allocations for fubar. Also a few errant
cases of lacking () for the sizeof operator - just a bit of OCD.
I've left out all the conversions that also should use kcalloc from
this patch (it's only 2).
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Since commit c93bdd0e03e8 ("netvm: allow skb allocation to use PFMEMALLOC
reserves"), hole size is one bit less than what is written in the comment.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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It is possible for the timer handlers to run after the call to
ipv6_mc_down so use in6_dev_put instead of __in6_dev_put in the
handler function in order to do proper cleanup when the refcnt
reaches 0. Otherwise, the refcnt can reach zero without the
inet6_dev being destroyed and we end up leaking a reference to
the net_device and see messages like the following,
unregister_netdevice: waiting for eth0 to become free. Usage count = 1
Tested on linux-3.4.43.
Signed-off-by: Salam Noureddine <noureddine@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Return -ENOMEM if the allocation fails.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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None of the DP DPCD helpers need to modify the DPCD.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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It is possible for the timer handlers to run after the call to
ip_mc_down so use in_dev_put instead of __in_dev_put in the handler
function in order to do proper cleanup when the refcnt reaches 0.
Otherwise, the refcnt can reach zero without the in_device being
destroyed and we end up leaking a reference to the net_device and
see messages like the following,
unregister_netdevice: waiting for eth0 to become free. Usage count = 1
Tested on linux-3.4.43.
Signed-off-by: Salam Noureddine <noureddine@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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__initdata tag should be placed between the variable name and equal
sign for the variable to be placed in the intended .init.data section.
In this particular case __initdata is incorrect as moxart_mac_driver
can be used after the driver gets initialized.
Also while at it static-ize moxart_mac_driver.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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gre_hlen already accounts for sizeof(struct ipv6_hdr) + gre header,
so initialize max_headroom to zero. Otherwise the
if (encap_limit >= 0) {
max_headroom += 8;
mtu -= 8;
}
increments an uninitialized variable before max_headroom was reset.
Found with coverity: 728539
Cc: Dmitry Kozlov <xeb@mail.ru>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently IEEE 1588 timer reference clock source is determined through
hard-coded value in gianfar_ptp driver. This patch allows to select ptp
clock source by means of device tree file node.
For instance:
fsl,cksel = <0>;
for using external (TSEC_TMR_CLK input) high precision timer
reference clock.
Other acceptable values:
<1> : eTSEC system clock
<2> : eTSEC1 transmit clock
<3> : RTC clock input
When this attribute isn't used, eTSEC system clock will serve as
IEEE 1588 timer reference clock.
Signed-off-by: Aida Mynzhasova <aida.mynzhasova@skitlab.ru>
Acked-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This reverts commit 894116bd0e9b7749a0c4b6c62dec13c2a0ccef68.
I applied the wrong version of this patch, correct
version coming up.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Recently grabbed this report:
https://bugzilla.redhat.com/show_bug.cgi?id=1005567
Of an issue in which the bonding driver, with an attached vlan encountered the
following errors when bond0 was taken down and back up:
dummy1: promiscuity touches roof, set promiscuity failed. promiscuity feature of
device might be broken.
The error occurs because, during __bond_release_one, if we release our last
slave, we take on a random mac address and issue a NETDEV_CHANGEADDR
notification. With an attached vlan, the vlan may see that the vlan and bond
mac address were in sync, but no longer are. This triggers a call to dev_uc_add
and dev_set_rx_mode, which enables IFF_PROMISC on the bond device. Then, when
we complete __bond_release_one, we use the current state of the bond flags to
determine if we should decrement the promiscuity of the releasing slave. But
since the bond changed promiscuity state during the release operation, we
incorrectly decrement the slave promisc count when it wasn't in promiscuous mode
to begin with, causing the above error
Fix is pretty simple, just cache the bonding flags at the start of the function
and use those when determining the need to set promiscuity.
This is also needed for the ALLMULTI flag
CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Mark Wu <wudxw@linux.vnet.ibm.com>
CC: "David S. Miller" <davem@davemloft.net>
Reported-by: Mark Wu <wudxw@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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