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Ville Syrjälä [Thu, 18 Aug 2022 19:22:22 +0000 (22:22 +0300)]
drm/i915/bios: Validate fp_timing terminator presence
Validate the LFP data block a bit hardwer by making sure the
fp_timing terminators (0xffff) are where we expect them to be.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220818192223.29881-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Mitul Golani [Tue, 30 Aug 2022 08:51:58 +0000 (14:21 +0530)]
drm/i915/display: Fix warning callstack for imbalance wakeref
While executing i915_selftest, wakeref imbalance warning is seen
with i915_selftest failure.
Currently when Driver is suspended, while doing unregister
it is taking wakeref without resuming the device.
This patch is resuming the device, if driver is already suspended
and doing unregister process.
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220830085158.577157-1-mitulkumar.ajitkumar.golani@intel.com
Ville Syrjälä [Tue, 30 Aug 2022 21:24:36 +0000 (00:24 +0300)]
drm/i915: Allow more varied alternate fixed modes for panels
On some systems the panel reports alternate modes with
different blanking periods. If the EDID reports them and VBT
doesn't tell us otherwise then I can't really see why they
should be rejected. So allow their use for the purposes of
static DRRS.
For seamless DRRS we still require a much more exact match
of course. But that logic only kicks in when selecting the
downclock mode (or in the future when determining whether
we can do a seamless refresh rate change due to a user
modeset).
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6374
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220830212436.2021-1-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Ville Syrjälä [Mon, 29 Aug 2022 13:58:34 +0000 (16:58 +0300)]
drm/i915/bios: Copy the whole MIPI sequence block
Turns out the MIPI sequence block version number and
new block size fields are considered part of the block
header and are not included in the reported new block size
field itself. Bump up the block size appropriately so that
we'll copy over the last five bytes of the block as well.
For this particular machine those last five bytes included
parts of the GPIO op for the backlight on sequence, causing
the backlight no longer to turn back on:
Sequence 6 - MIPI_SEQ_BACKLIGHT_ON
Delay: 20000 us
- GPIO index 0, number 0, set 0 (0x00)
+ GPIO index 1, number 70, set 1 (0x01)
Cc: stable@vger.kernel.org
Fixes:
e163cfb4c96d ("drm/i915/bios: Make copies of VBT data blocks")
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6652
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220829135834.8585-1-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Ville Syrjälä [Tue, 10 May 2022 10:42:42 +0000 (13:42 +0300)]
drm/i915/bios: Dump PNPID and panel name
Dump the panel PNPID and name from the VBT.
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220510104242.6099-16-ville.syrjala@linux.intel.com
Jani Nikula [Tue, 30 Aug 2022 09:34:11 +0000 (12:34 +0300)]
drm/i915/fence: replace BUG_ON() with BUILD_BUG_ON()
Avoid BUG_ON(). Since __i915_sw_fence_init() is always called via a
wrapper macro, we can replace it with a compile time BUILD_BUG_ON().
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220830093411.1511040-5-jani.nikula@intel.com
Jani Nikula [Tue, 30 Aug 2022 09:34:10 +0000 (12:34 +0300)]
drm/i915/perf: replace BUG_ON() with WARN_ON()
Avoid BUG_ON(). Replace with WARN_ON() and early return.
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220830093411.1511040-4-jani.nikula@intel.com
Jani Nikula [Tue, 30 Aug 2022 09:34:09 +0000 (12:34 +0300)]
drm/i915/pch: replace BUG_ON() with drm_WARN_ON()
Avoid BUG_ON(). Replace with drm_WARN_ON().
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220830093411.1511040-3-jani.nikula@intel.com
Jani Nikula [Tue, 30 Aug 2022 09:34:08 +0000 (12:34 +0300)]
drm/i915/dpll: replace BUG_ON() with drm_WARN_ON()
Avoid BUG_ON(). Actually check the dpll count and bail out loudly with
drm_WARN_ON() from the loop before overflowing
i915->dpll.shared_dplls[].
v2: Rebase
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220830093411.1511040-2-jani.nikula@intel.com
Jani Nikula [Tue, 30 Aug 2022 09:34:07 +0000 (12:34 +0300)]
drm/i915/crt: remove BUG_ON()
Avoid BUG_ON(). We don't have such checks on output type anywhere else
either, so just remove.
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220830093411.1511040-1-jani.nikula@intel.com
Jani Nikula [Tue, 30 Aug 2022 10:28:02 +0000 (13:28 +0300)]
drm/i915/gmbus: mass dev_priv -> i915 rename
Now that gmbus no longer uses macros that assume dev_priv is implicitly
available, mass rename dev_priv to i915 in gmbus code.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/fcf16a65f7975379a887ed57c623b25de7b344c8.1661855191.git.jani.nikula@intel.com
Jani Nikula [Tue, 30 Aug 2022 10:28:01 +0000 (13:28 +0300)]
drm/i915/reg: stop using implicit dev_priv in DSPCLK_GATE_D
Remove the implicit dev_priv usage in DSPCLK_GATE_D register, and pass
it as parameter.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/41ca83573ca2d94bea568058f8cb8c35e814f8b1.1661855191.git.jani.nikula@intel.com
Jani Nikula [Tue, 30 Aug 2022 10:28:00 +0000 (13:28 +0300)]
drm/i915/gmbus: stop using implicit dev_priv in register definitions
Since the beginning of time, we've implicitly assumed dev_priv is
present as a local variable in many places. We've gone a long way in
removing many of them, but the register macro definitions are the last
holdout. Remove them from the gmbus macros.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a4f482c1f523d7225420f8386f1eea6d639db843.1661855191.git.jani.nikula@intel.com
Jani Nikula [Tue, 30 Aug 2022 10:27:59 +0000 (13:27 +0300)]
drm/i915/gmbus: add wrapper for gmbus mmio base
Don't repeat the same thing so much.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/db360d824d47601d5ca843afa6f5d6ee17d0e514.1661855191.git.jani.nikula@intel.com
Jani Nikula [Tue, 30 Aug 2022 10:27:58 +0000 (13:27 +0300)]
drm/i915/gmbus: whitespace cleanup in reg definitions
Simple whitespace cleanup and comment movement.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/50df38c9f3e53dba64429b7eaa6c0d7bfaf74078.1661855191.git.jani.nikula@intel.com
Jani Nikula [Tue, 30 Aug 2022 10:27:57 +0000 (13:27 +0300)]
drm/i915/gmbus: split out gmbus regs in a separate file
Declutter i915_reg.h, and also observe very few places need the gmbus
register defitions.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/820807f404e548ab365b934d44f01b306eaa28c2.1661855191.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:25 +0000 (16:18 +0300)]
drm/i915: move and group properties under display.properties
Move display property related members under drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/14b14f871e322419b10166c1bd8a5a956f5430c8.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:24 +0000 (16:18 +0300)]
drm/i915: move atomic_helper under display sub-struct
Move display atomic helper related members under drm_i915_private
display sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1d864238a92a32d52ea70c0079c910cc90955324.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:23 +0000 (16:18 +0300)]
drm/i915: move quirks under display sub-struct
Move display quirk related members under drm_i915_private display
sub-struct.
Prefer adding anonymous sub-structs even for single members that aren't
our own structs.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c4a1a5657023efe24a362c67daf79260f179f0eb.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:22 +0000 (16:18 +0300)]
drm/i915/quirks: abstract quirks further by making quirk ids an enum
Turn the quirk ids to enums instead of bits, and hide the masking inside
intel_quirks.c. Define the enums in intel_quirks.h to declutter
i915_drv.h while at it.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/60d8a20e1f8845b0bef53c2e32d524be888e426d.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:21 +0000 (16:18 +0300)]
drm/i915/quirks: abstract checking for display quirks
Add intel_has_quirk() for checking if a display quirk is present. Avoid
accessing i915->quirks all over the place.
v2: Rebase
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/74f954ca81a8068033141a15686dffd01ad9b0f9.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:20 +0000 (16:18 +0300)]
drm/i915: move and group modeset_wq and flip_wq under display.wq
Move display workqueue related members under drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f34f7fb45510e880ce0cc16cb2fbba72fbe94a1d.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:19 +0000 (16:18 +0300)]
drm/i915: move dbuf under display sub-struct
Move display dbuf related members under drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3363a516c12bd8bfb240131e9eb9fc3a0f3057a3.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:18 +0000 (16:18 +0300)]
drm/i915: move fb_tracking under display sub-struct
Move display frontbuffer tracking related members under drm_i915_private
display sub-struct.
Rename struct i915_frontbuffer_tracking to intel_frontbuffer_tracking
while at it.
FIXME: fb_tracking.lock mutex init should be moved away from
i915_gem_init_early().
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a5444d0a373afca46da9a2f6e4db442af21b429b.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:17 +0000 (16:18 +0300)]
drm/i915: move and group fdi members under display.fdi
Move display fdi related members under drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b66fe7cf2c6f9e5b7bbfcaff40400492ac706721.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:16 +0000 (16:18 +0300)]
drm/i915: move and group power related members under display.power
Move display power related members under drm_i915_private display
sub-struct.
Arguably chv_phy_control and chv_phy_assert could be placed in a phy
substruct, but they are only used in the power code.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/57bfa82f6fe85a775f80c398b2a7dff77b9452b0.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:15 +0000 (16:18 +0300)]
drm/i915: move fbc to display.fbc
Move display FBC related members under drm_i915_private display
sub-struct.
Pointers and arrays of pointers to structs that we defined are fine
without a sub-struct wrapping.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1151469ec13d392df86b72a375f490fd70a3257a.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:14 +0000 (16:18 +0300)]
drm/i915: move vbt to display.vbt
Move display VBT related members under drm_i915_private display
sub-struct.
v2: Rebase
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/db4b648b201ea0b79654fec2028120999a735db0.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:13 +0000 (16:18 +0300)]
drm/i915: move mipi_mmio_base to display.dsi
Move display DSI related members under drm_i915_private display
sub-struct.
Prefer adding anonymous sub-structs even for single members that aren't
our own structs.
Abstract mmio base member access in register definitions in a macro.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/dc7c5a871fe558a809ea943eca5c71dfff1740a8.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:12 +0000 (16:18 +0300)]
drm/i915: move backlight to display.backlight
Move display backlight related members under drm_i915_private display
sub-struct.
Prefer adding anonymous sub-structs even for single members that aren't
our own structs.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/026241565dad12e0024c443419fa5e0caac41b2d.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:11 +0000 (16:18 +0300)]
drm/i915: move and group cdclk under display.cdclk
Move display cdclk related members under drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7df23655be5dc70fb1a2b43ce41e1682e40395d8.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:10 +0000 (16:18 +0300)]
drm/i915: move opregion to display.opregion
Move display opregion related members under drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a0ceb5148835fa3e0828786ae491fcd11e2e77ff.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:09 +0000 (16:18 +0300)]
drm/i915: move and group max_bw and bw_obj under display.bw
Move display bandwidth related members under drm_i915_private display
sub-struct.
v2: Rebase
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c8b9e2fdc5c226ffb71759a20e561c832a774ba5.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 13:18:08 +0000 (16:18 +0300)]
drm/i915: move and group hdcp under display.hdcp
Move display hdcp related members under drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1083f5a58cce1507bd19bf7f98bf85e9351b741e.1661779055.git.jani.nikula@intel.com
Jani Nikula [Mon, 29 Aug 2022 11:44:38 +0000 (14:44 +0300)]
Merge drm/drm-next into drm-intel-next
Sync drm-intel-next with v6.0-rc as well as recent drm-intel-gt-next.
Since drm-next does not have commit
f0c70d41e4e8 ("drm/i915/guc: remove
runtime info printing from time stamp logging") yet, only
drm-intel-gt-next, will need to do that as part of the merge here to
build.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Jani Nikula [Wed, 24 Aug 2022 13:15:59 +0000 (16:15 +0300)]
drm/i915: split gem quirks from display quirks
The lone gem quirk is an outlier, not even handled by the common quirk
code. Split it to a separate gem_quirks member.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/fe9c0cb1e49da0ddc31d24c996af5fd09bce3042.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:56 +0000 (16:15 +0300)]
drm/i915: move INTEL_FRONTBUFFER_* macros to intel_frontbuffer.h
The macros clearly don't belong in i915_drv.h. Move to
intel_frontbuffer.h.
Also split the BUILD_BUG_ON()s to intel_frontbuffer_track() to avoid
depending on some other macros in the header.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c899fd1ef2220564a876cd88c03e53c4c7b0168b.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:52 +0000 (16:15 +0300)]
drm/i915/vrr: drop window2_delay member from i915
The window2_delay member has been functionally unused (always set to 0)
since it was added in commit
bb265dbdf38d ("drm/i915/xelpd: Add VRR
guardband for VRR CTL"). Replace it with a FIXME comment.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/036955dc2c4c2d2b2d89555e473d91ce1be10395.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:44 +0000 (16:15 +0300)]
drm/i915: move and group sagv under display.sagv
Move display sagv related members under drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d67c632f6bc75f6ce562c28f3521404d30ed48f4.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:43 +0000 (16:15 +0300)]
drm/i915: move overlay to display.overlay
Move display overlay related members under drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/e019fb538536d36bab28feaafe049e0b1726f2d9.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:42 +0000 (16:15 +0300)]
drm/i915: move hotplug to display.hotplug
Move display hotplug related members under drm_i915_private display
sub-struct.
Rename struct i915_hotplug to intel_hotplug while at it.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c1c7562a31c115e9d6a131861e4ca9c97d4f7e09.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:40 +0000 (16:15 +0300)]
drm/i915: move wm to display.wm
Move display watermark related members under drm_i915_private display
sub-struct.
It's a bit arbitrary when to define a named struct for grouping, but
clearly intel_wm is big enough to warrant a separate definition.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b991dd25f8f539746c475d417691e0816ff6b24a.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:39 +0000 (16:15 +0300)]
drm/i915: move and group fbdev under display.fbdev
Move display fbdev related members under drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7eb563bc88623bd3f12b9a00efec85e6a78d5800.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:38 +0000 (16:15 +0300)]
drm/i915: move dpll under display.dpll
Move display dpll related members under drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8818a2a4330edb9800f567626958b2de8872aa63.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:37 +0000 (16:15 +0300)]
drm/i915: move and split audio under display.audio and display.funcs
Move display audio related members under drm_i915_private display
sub-struct.
Split audio funcs to display.funcs to follow the same pattern as all the
other display functions.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/51c0b966963a8b47efe3a431e0ce106bdd5269c5.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:36 +0000 (16:15 +0300)]
drm/i915: move dmc to display.dmc
Move display dmc related members under drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7cb91222e099b96b82c74b5f086d50c43459d61b.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:35 +0000 (16:15 +0300)]
drm/i915: move and group pps members under display.pps
Move display PPS related members under drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7ecc37045ab9eb22831517e5a59ca74edb31962f.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:34 +0000 (16:15 +0300)]
drm/i915: move and group gmbus members under display.gmbus
Move display gmbus related members under drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/9379e4d8982c1ddea215a3f602f08a4055928c7c.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:33 +0000 (16:15 +0300)]
drm/i915: move color_funcs to display.funcs
Move display color functions under drm_i915_private display sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/36d6e9327582c94c1962c10ebd1581c3d15a5743.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:32 +0000 (16:15 +0300)]
drm/i915: move fdi_funcs to display.funcs
Move display fdi functions under drm_i915_private display sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/16ff8df6c08411c0e5aac3356dffe7f5120fcfeb.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:31 +0000 (16:15 +0300)]
drm/i915: move wm_disp funcs to display.funcs
Move display watermark functions under drm_i915_private display
sub-struct.
Rename struct drm_i915_wm_disp_funcs to intel_wm_funcs while at it.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/29d07c82ef7d33a59fc9c8e25ae2d2f900677a4c.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:30 +0000 (16:15 +0300)]
drm/i915: move hotplug_funcs to display.funcs
Move display hotplug functions under drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1cf677f1d02b8b621ec41ff77fe5de26d4f6954a.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:29 +0000 (16:15 +0300)]
drm/i915: move dpll_funcs to display.funcs
Move display dpll functions under drm_i915_private display sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5bf7aada2c7f0500c5002fa089fb66a92019a301.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:28 +0000 (16:15 +0300)]
drm/i915: move cdclk_funcs to display.funcs
Move display cdclk functions under drm_i915_private display sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/77e12e21bb9682a3c1d54f8d59eecc5945ef16d0.1661346845.git.jani.nikula@intel.com
Jani Nikula [Wed, 24 Aug 2022 13:15:27 +0000 (16:15 +0300)]
drm/i915: add display sub-struct to drm_i915_private
In another long-overdue cleanup, add a display sub-struct to
drm_i915_private, and start moving display related members there. Start
with display funcs that need a rename anyway to not collide with the new
display member.
Add a new header under display/ for defining struct intel_display.
Rename struct drm_i915_display_funcs to intel_display_funcs while at it.
v2:
- Fix multi-line comment style (Arun)
- Use display as the member name
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d44cae096b664f7015f8c797d6dfd4964226d4f8.1661346845.git.jani.nikula@intel.com
José Roberto de Souza [Wed, 24 Aug 2022 13:39:35 +0000 (06:39 -0700)]
drm/i915: Add new ADL-S pci id
New PCI id recently added.
BSpec: 53655
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Madhumitha Tolakanahalli Pradeep <madhumitha.tolakanahalli.pradeep@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220824133935.51560-1-jose.souza@intel.com
Ville Syrjälä [Fri, 17 Jun 2022 19:59:48 +0000 (22:59 +0300)]
drm/i915: Skip wm/ddb readout for disabled pipes
The stuff programmed into the wm/ddb registers of planes
on disabled pipes doesn't matter. So during readout just
leave our software state tracking for those zeroed.
This should avoid us trying too hard to clean up after
whatever mess the VBIOS/GOP left in there. The actual
hardware state will get cleaned up if/when we enable
the pipe anyway.
Cc: stable@vger.kernel.org
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5711
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220617195948.24007-1-ville.syrjala@linux.intel.com
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Dave Airlie [Fri, 26 Aug 2022 00:01:44 +0000 (10:01 +1000)]
Merge tag 'drm-intel-gt-next-2022-08-24' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
UAPI Changes:
- Create gt/gtN/.defaults/ for per gt sysfs defaults
Create a gt/gtN/.defaults/ directory (similar to
engine/<engine-name>/.defaults/) to expose default parameter values for
each gt in sysfs. This allows userspace to restore default parameter values
after they have changed.
Driver Changes:
- Support GuC v69 in parallel to v70 (Daniele)
- Improve TLB invalidation to limit performance regression (Chris, Mauro)
- Expose per-gt RPS defaults in sysfs (Ashutosh)
- Suppress OOM warning for shmemfs object allocation failure (Chris, Nirmoy)
- Disable PCI resize on 32-bit machines (Nirmoy)
- Update DG2 to GuC v70.4.1 (John)
- Fix CCS data copying on DG2 during swapping (Matt A)
- Add DG2 performance tuning setting recommended by spec (Matt R)
- Add GuC <-> kernel time stamp translation information to error logs (John)
- Record GuC CTB info in error logs (John)
- Route semaphores to GuC for Gen12+ when enabled (Michal Wi, John)
- Improve resilency to bug #3575: Handle reset timeouts under unrelated kernel hangs (Chris, Ashutosh)
- Avoid system freeze by removing shared locking on freeing objects (Chris, Nirmoy)
- Demote GuC error "No response for request" into debug when expected (Zhanjun)
- Fix GuC capture size warning and bump the size (John)
- Use streaming loads to speed up dumping the GuC log (Chris, John)
- Don't abort on CTB_UNUSED status from GuC (John)
- Don't send spurious policy update for GuC child contexts (Daniele)
- Don't leak the CCS state (Matt A)
- Prefer drm_err over pr_err (John)
- Eliminate unused calc_ctrl_surf_instr_size (Matt A)
- Add dedicated function for non-ctx register tuning settings (Matt R)
- Style and typo fixes, documentation improvements (Jason Wang, Mauro)
- Selftest improvements (Matt B, Rahul, John)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YwYTCjA/Rhpd1n4A@jlahtine-mobl.ger.corp.intel.com
José Roberto de Souza [Thu, 18 Aug 2022 23:42:00 +0000 (16:42 -0700)]
drm/i915/display/mtl: Extend MBUS programming
Display version 14 also supports MBUS joining just like ADL-P
and also it does not need MBUS initialization, so extending ADL-P
code paths to display version 14 and higher.
Bspec: 49213
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220818234202.451742-20-radhakrishna.sripada@intel.com
Radhakrishna Sripada [Thu, 18 Aug 2022 23:41:59 +0000 (16:41 -0700)]
drm/i915/mtl: Reuse adl-p DBUF calculations
Meteorlake uses a similar DBUF calculations as ADL-P.
Reuse the call flow for meteorlake.
Bspec: 49255
Original Author: Caz Yokoyama
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220818234202.451742-19-radhakrishna.sripada@intel.com
Radhakrishna Sripada [Thu, 18 Aug 2022 23:41:57 +0000 (16:41 -0700)]
drm/i915/mtl: Update memory bandwidth parameters
Like ADL_P, Meteorlake has different memory characteristics from
past platforms. Update the values used by our memory bandwidth
calculations accordingly.
Bspec: 64631
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220818234202.451742-17-radhakrishna.sripada@intel.com
Radhakrishna Sripada [Thu, 18 Aug 2022 23:41:55 +0000 (16:41 -0700)]
drm/i915/mtl: memory latency data from LATENCY_LPX_LPY for WM
Since Xe LPD+, Memory latency data are in LATENCY_LPX_LPY registers
instead of GT driver mailbox.
v2: Use the extracted wm latency adjustment function(Matt)
v3: Use Odd/even for Latency fields(MattR)
Bspec: 64608
Cc: Matt Roper <matthew.d.roper@intel.com>
Original Author: Caz Yokoyama
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/<20220818234202.451742-15-radhakrishna.sripada@intel.com>
Radhakrishna Sripada [Thu, 18 Aug 2022 23:41:54 +0000 (16:41 -0700)]
drm/i915: Extract wm latency adjustment to its own function
Watermark latency is adjusted in cases when latency is 0us for level
greater than 1, the subsequent levels are disabled. Extract this logic
into its own function.
v2: Pass dev_priv to the extracted function(MattR)
Suggested-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220818234202.451742-14-radhakrishna.sripada@intel.com
Clint Taylor [Thu, 18 Aug 2022 23:41:53 +0000 (16:41 -0700)]
drm/i915/mtl: Fix rawclk for Meteorlake PCH
MTL has a fixed rawclk of 38400Khz. Register does not need to be
reprogrammed.
Bspec: 49304
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220818234202.451742-13-radhakrishna.sripada@intel.com
Radhakrishna Sripada [Thu, 18 Aug 2022 23:41:50 +0000 (16:41 -0700)]
drm/i915/mtl: Add support for MTL in Display Init sequences
The initialization sequence for Meteorlake reuses the sequence for
icelake for most parts. Some changes viz. reset PICA handshake
are added.
Bspec: 49189
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220818234202.451742-10-radhakrishna.sripada@intel.com
Imre Deak [Thu, 18 Aug 2022 23:41:49 +0000 (16:41 -0700)]
drm/i915/mtl: Add VBT port and AUX_CH mapping
Add the proper VBT port,AUX_CH -> i915 port,AUX_CH mapping which just
follows the ADL_P one.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220818234202.451742-9-radhakrishna.sripada@intel.com
Radhakrishna Sripada [Thu, 18 Aug 2022 23:41:47 +0000 (16:41 -0700)]
drm/i915/mtl: Add PCH support
Add support for Meteorpoint(MTP) PCH used with Meteorlake.
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220818234202.451742-7-radhakrishna.sripada@intel.com
Diego Santa Cruz [Thu, 16 Jun 2022 12:41:37 +0000 (15:41 +0300)]
drm/i915/glk: ECS Liva Q2 needs GLK HDMI port timing quirk
The quirk added in upstream commit
90c3e2198777 ("drm/i915/glk: Add
Quirk for GLK NUC HDMI port issues.") is also required on the ECS Liva
Q2.
Note: Would be nicer to figure out the extra delay required for the
retimer without quirks, however don't know how to check for that.
Cc: stable@vger.kernel.org
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/1326
Signed-off-by: Diego Santa Cruz <Diego.SantaCruz@spinetix.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220616124137.3184371-1-jani.nikula@intel.com
Łukasz Bartosik [Tue, 1 Feb 2022 15:33:54 +0000 (16:33 +0100)]
drm/i915: fix null pointer dereference
Asus chromebook CX550 crashes during boot on v5.17-rc1 kernel.
The root cause is null pointer defeference of bi_next
in tgl_get_bw_info() in drivers/gpu/drm/i915/display/intel_bw.c.
BUG: kernel NULL pointer dereference, address:
000000000000002e
PGD 0 P4D 0
Oops: 0002 [#1] PREEMPT SMP NOPTI
CPU: 0 PID: 1 Comm: swapper/0 Tainted: G U 5.17.0-rc1
Hardware name: Google Delbin/Delbin, BIOS Google_Delbin.13672.156.3 05/14/2021
RIP: 0010:tgl_get_bw_info+0x2de/0x510
...
[ 2.554467] Call Trace:
[ 2.554467] <TASK>
[ 2.554467] intel_bw_init_hw+0x14a/0x434
[ 2.554467] ? _printk+0x59/0x73
[ 2.554467] ? _dev_err+0x77/0x91
[ 2.554467] i915_driver_hw_probe+0x329/0x33e
[ 2.554467] i915_driver_probe+0x4c8/0x638
[ 2.554467] i915_pci_probe+0xf8/0x14e
[ 2.554467] ? _raw_spin_unlock_irqrestore+0x12/0x2c
[ 2.554467] pci_device_probe+0xaa/0x142
[ 2.554467] really_probe+0x13f/0x2f4
[ 2.554467] __driver_probe_device+0x9e/0xd3
[ 2.554467] driver_probe_device+0x24/0x7c
[ 2.554467] __driver_attach+0xba/0xcf
[ 2.554467] ? driver_attach+0x1f/0x1f
[ 2.554467] bus_for_each_dev+0x8c/0xc0
[ 2.554467] bus_add_driver+0x11b/0x1f7
[ 2.554467] driver_register+0x60/0xea
[ 2.554467] ? mipi_dsi_bus_init+0x16/0x16
[ 2.554467] i915_init+0x2c/0xb9
[ 2.554467] ? mipi_dsi_bus_init+0x16/0x16
[ 2.554467] do_one_initcall+0x12e/0x2b3
[ 2.554467] do_initcall_level+0xd6/0xf3
[ 2.554467] do_initcalls+0x4e/0x79
[ 2.554467] kernel_init_freeable+0xed/0x14d
[ 2.554467] ? rest_init+0xc1/0xc1
[ 2.554467] kernel_init+0x1a/0x120
[ 2.554467] ret_from_fork+0x1f/0x30
[ 2.554467] </TASK>
...
Kernel panic - not syncing: Fatal exception
Fixes:
c64a9a7c05be ("drm/i915: Update memory bandwidth formulae")
Signed-off-by: Łukasz Bartosik <lb@semihalf.com>
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220201153354.11971-1-lukasz.bartosik@semihalf.com
Taylor, Clinton A [Mon, 1 Aug 2022 23:48:56 +0000 (16:48 -0700)]
drm/i915/dg2: Add additional HDMI pixel clock frequencies
Using the BSPEC algorithm add addition HDMI pixel clocks to the existing
table.
v2: remove 297000 unused entry
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Taylor, Clinton A <clinton.a.taylor@intel.com>
Reviewed-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
[mattrope: Fixed minor whitepsace issue flagged by checkpatch]
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220801234856.2832317-1-clinton.a.taylor@intel.com
Jani Nikula [Fri, 19 Aug 2022 12:02:47 +0000 (15:02 +0300)]
drm/i915: move has_dsc to runtime info
If it's modified runtime, it's runtime info.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Maarten Lankhort <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/0e2646e5fdaad2785678b4f140091b3d91b97f7e.1660910433.git.jani.nikula@intel.com
Jani Nikula [Fri, 19 Aug 2022 12:02:46 +0000 (15:02 +0300)]
drm/i915: move has_dmc to runtime info
If it's modified runtime, it's runtime info.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Maarten Lankhort <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b8f69cd1b6114295826c1f88be27e867c91f7df4.1660910433.git.jani.nikula@intel.com
Jani Nikula [Fri, 19 Aug 2022 12:02:45 +0000 (15:02 +0300)]
drm/i915: move has_hdcp to runtime info
If it's modified runtime, it's runtime info.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Maarten Lankhort <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b146250e02a4b2f086e7e587dd1742589e0e8fba.1660910433.git.jani.nikula@intel.com
Jani Nikula [Fri, 19 Aug 2022 12:02:44 +0000 (15:02 +0300)]
drm/i915: move pipe_mask and cpu_transcoder_mask to runtime info
If it's modified runtime, it's runtime info.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Maarten Lankhort <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/bff2ea209031063cec38085518508394b064df4a.1660910433.git.jani.nikula@intel.com
Jani Nikula [Fri, 19 Aug 2022 12:02:43 +0000 (15:02 +0300)]
drm/i915: move platform_engine_mask to runtime info
If it's modified runtime, it's runtime info.
mock_gem_device() is the only one that modifies it. If that could be
fixed, we wouldn't have to do this.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Maarten Lankhort <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1261406b373998c1a171ee9ed91f7f562826eba6.1660910433.git.jani.nikula@intel.com
Jani Nikula [Fri, 19 Aug 2022 12:02:42 +0000 (15:02 +0300)]
drm/i915: move memory_regions to runtime info
If it's modified runtime, it's runtime info.
mock_gem_device() is the only one that modifies it. If that could be
fixed, we wouldn't have to do this.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Maarten Lankhort <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/12aace656c6a6380575767d7f6ccd73c12a627c3.1660910433.git.jani.nikula@intel.com
Jani Nikula [Fri, 19 Aug 2022 12:02:41 +0000 (15:02 +0300)]
drm/i915: move has_pooled_eu to runtime info
If it's modified runtime, it's runtime info.
Curiously, the flag was never initialized statically.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Maarten Lankhort <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/db6d47abd87c74ae5f5be1cda62af13518c896fb.1660910433.git.jani.nikula@intel.com
Jani Nikula [Fri, 19 Aug 2022 12:02:40 +0000 (15:02 +0300)]
drm/i915: move ppgtt_type and ppgtt_size to runtime info
If it's modified runtime, it's runtime info.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Maarten Lankhort <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/9a9b94cb79a00229da5a564a16ea750a6d392ab6.1660910433.git.jani.nikula@intel.com
Jani Nikula [Fri, 19 Aug 2022 12:02:39 +0000 (15:02 +0300)]
drm/i915: move page_sizes to runtime info
If it's modified runtime, it's runtime info.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Maarten Lankhort <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f6825dd97d2ba63aa395c30131c4b9e6ef32b0c8.1660910433.git.jani.nikula@intel.com
Jani Nikula [Fri, 19 Aug 2022 12:02:38 +0000 (15:02 +0300)]
drm/i915: move fbc_mask to runtime info
If it's modified runtime, it's runtime info.
v2: Rebase on mtl fbc_mask
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Maarten Lankhort <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/dd1898084b732ba265b212ddbc0fcdd826c11820.1660910433.git.jani.nikula@intel.com
Jani Nikula [Fri, 19 Aug 2022 12:02:37 +0000 (15:02 +0300)]
drm/i915: move graphics.ver and graphics.rel to runtime info
If it's modified runtime, it's runtime info.
mock_gem_device() is the only one that modifies them. If that could be
fixed, we wouldn't have to do this.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Maarten Lankhort <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6bdf6cc0d67e3ed8042d2b92303351111147ba47.1660910433.git.jani.nikula@intel.com
Jani Nikula [Fri, 19 Aug 2022 12:02:36 +0000 (15:02 +0300)]
drm/i915: add initial runtime info into device info
Add initial runtime info that we can copy to runtime info at i915
creation time. This lets us define the initial values for runtime info
statically while making it possible to change them runtime. This will be
the new home for the current "const" device info members that are
modified runtime anyway.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Maarten Lankhort <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a77c6db2da20d401f47a0a5e87356b9b3f6292df.1660910433.git.jani.nikula@intel.com
Jani Nikula [Fri, 19 Aug 2022 12:02:35 +0000 (15:02 +0300)]
drm/i915: combine device info printing into one
We'll be moving info between static and runtime info. Combine the
printing functions into one to keep the output sensible and (mostly)
unchanged in the process.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Maarten Lankhort <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8579bfe0fcc5ee8390d4cded68a0167a618097f5.1660910433.git.jani.nikula@intel.com
Jouni Högander [Mon, 22 Aug 2022 14:08:36 +0000 (17:08 +0300)]
drm/i915/backlight: Disable pps power hook for aux based backlight
Pps power hook seems to be problematic for backlight controlled via
aux channel. Disable it for such cases.
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/3657
Cc: stable@vger.kernel.org
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220822140836.534432-1-jouni.hogander@intel.com
Jani Nikula [Mon, 15 Aug 2022 08:09:07 +0000 (11:09 +0300)]
drm/i915/utils: remove unused KBps/MBps/GBps macros
Remove unused macros. If needed again, such macros belong in
<linux/units.h>.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220815080907.3229449-1-jani.nikula@intel.com
Vandita Kulkarni [Wed, 17 Aug 2022 12:45:16 +0000 (15:45 +0300)]
drm/i915/dsc/mtl: Enable alternate ICH method
DSC 1.2 is supported from MTL, hence program ICH accordingly.
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220817124516.284456-2-jani.nikula@intel.com
Vandita Kulkarni [Wed, 17 Aug 2022 12:45:15 +0000 (15:45 +0300)]
drm/i915/dsc/mtl: Update the DSC minor version
From MTL onwards we support DSC 1.2, since there is hardcoding to minor
version 1, update it.
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220817124516.284456-1-jani.nikula@intel.com
Arun R Murthy [Mon, 8 Aug 2022 03:57:50 +0000 (09:27 +0530)]
drm/i915/display: avoid warnings when registering dual panel backlight
Commit
20f85ef89d94 ("drm/i915/backlight: use unique backlight device
names") added support for multiple backlight devices on dual panel
systems, but did so with error handling on -EEXIST from
backlight_device_register(). Unfortunately, that triggered a warning in
dmesg all the way down from sysfs_add_file_mode_ns() and
sysfs_warn_dup().
Instead of optimistically always attempting to register with the default
name ("intel_backlight", which we have to retain for backward
compatibility), check if a backlight device with the name exists first,
and, if so, use the card and connector based name.
v2: reworked on top of the patch commit
20f85ef89d94
("drm/i915/backlight: use unique backlight device names")
v3: fixed the ref count leak(Jani N)
Fixes:
20f85ef89d94 ("drm/i915/backlight: use unique backlight device names")
Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220808035750.3111046-1-arun.r.murthy@intel.com
Linus Torvalds [Mon, 22 Aug 2022 00:32:54 +0000 (17:32 -0700)]
Linux 6.0-rc2
Linus Torvalds [Sun, 21 Aug 2022 22:09:55 +0000 (15:09 -0700)]
Merge tag 'irq-urgent-2022-08-21' of git://git./linux/kernel/git/tip/tip
Pull irq fixes from Ingo Molnar:
"Misc irqchip fixes: LoongArch driver fixes and a Hyper-V IOMMU fix"
* tag 'irq-urgent-2022-08-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/loongson-liointc: Fix an error handling path in liointc_init()
irqchip/loongarch: Fix irq_domain_alloc_fwnode() abuse
irqchip/loongson-pch-pic: Move find_pch_pic() into CONFIG_ACPI
irqchip/loongson-eiointc: Fix a build warning
irqchip/loongson-eiointc: Fix irq affinity setting
iommu/hyper-v: Use helper instead of directly accessing affinity
Linus Torvalds [Sun, 21 Aug 2022 22:01:51 +0000 (15:01 -0700)]
Merge tag 'perf-urgent-2022-08-21' of git://git./linux/kernel/git/tip/tip
Pull x86 kprobes fix from Ingo Molnar:
"Fix a kprobes bug in JNG/JNLE emulation when a kprobe is installed at
such instructions, possibly resulting in incorrect execution (the
wrong branch taken)"
* tag 'perf-urgent-2022-08-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/kprobes: Fix JNG/JNLE emulation
Linus Torvalds [Sun, 21 Aug 2022 21:49:42 +0000 (14:49 -0700)]
Merge tag 'trace-v6.0-rc1-2' of git://git./linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"Various fixes for tracing:
- Fix a return value of traceprobe_parse_event_name()
- Fix NULL pointer dereference from failed ftrace enabling
- Fix NULL pointer dereference when asking for registers from eprobes
- Make eprobes consistent with kprobes/uprobes, filters and
histograms"
* tag 'trace-v6.0-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Have filter accept "common_cpu" to be consistent
tracing/probes: Have kprobes and uprobes use $COMM too
tracing/eprobes: Have event probes be consistent with kprobes and uprobes
tracing/eprobes: Fix reading of string fields
tracing/eprobes: Do not hardcode $comm as a string
tracing/eprobes: Do not allow eprobes to use $stack, or % for regs
ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead
tracing/perf: Fix double put of trace event when init fails
tracing: React to error return from traceprobe_parse_event_name()
Steven Rostedt (Google) [Sat, 20 Aug 2022 13:43:22 +0000 (09:43 -0400)]
tracing: Have filter accept "common_cpu" to be consistent
Make filtering consistent with histograms. As "cpu" can be a field of an
event, allow for "common_cpu" to keep it from being confused with the
"cpu" field of the event.
Link: https://lkml.kernel.org/r/20220820134401.513062765@goodmis.org
Link: https://lore.kernel.org/all/20220820220920.e42fa32b70505b1904f0a0ad@kernel.org/
Cc: stable@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
Cc: Tom Zanussi <zanussi@kernel.org>
Fixes:
1e3bac71c5053 ("tracing/histogram: Rename "cpu" to "common_cpu"")
Suggested-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Steven Rostedt (Google) [Sat, 20 Aug 2022 13:43:21 +0000 (09:43 -0400)]
tracing/probes: Have kprobes and uprobes use $COMM too
Both $comm and $COMM can be used to get current->comm in eprobes and the
filtering and histogram logic. Make kprobes and uprobes consistent in this
regard and allow both $comm and $COMM as well. Currently kprobes and
uprobes only handle $comm, which is inconsistent with the other utilities,
and can be confusing to users.
Link: https://lkml.kernel.org/r/20220820134401.317014913@goodmis.org
Link: https://lore.kernel.org/all/20220820220442.776e1ddaf8836e82edb34d01@kernel.org/
Cc: stable@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
Cc: Tom Zanussi <zanussi@kernel.org>
Fixes:
533059281ee5 ("tracing: probeevent: Introduce new argument fetching code")
Suggested-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Steven Rostedt (Google) [Sat, 20 Aug 2022 13:43:20 +0000 (09:43 -0400)]
tracing/eprobes: Have event probes be consistent with kprobes and uprobes
Currently, if a symbol "@" is attempted to be used with an event probe
(eprobes), it will cause a NULL pointer dereference crash.
Both kprobes and uprobes can reference data other than the main registers.
Such as immediate address, symbols and the current task name. Have eprobes
do the same thing.
For "comm", if "comm" is used and the event being attached to does not
have the "comm" field, then make it the "$comm" that kprobes has. This is
consistent to the way histograms and filters work.
Link: https://lkml.kernel.org/r/20220820134401.136924220@goodmis.org
Cc: stable@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
Cc: Tom Zanussi <zanussi@kernel.org>
Fixes:
7491e2c44278 ("tracing: Add a probe that attaches to trace events")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Steven Rostedt (Google) [Sat, 20 Aug 2022 13:43:19 +0000 (09:43 -0400)]
tracing/eprobes: Fix reading of string fields
Currently when an event probe (eprobe) hooks to a string field, it does
not display it as a string, but instead as a number. This makes the field
rather useless. Handle the different kinds of strings, dynamic, static,
relational/dynamic etc.
Now when a string field is used, the ":string" type can be used to display
it:
echo "e:sw sched/sched_switch comm=$next_comm:string" > dynamic_events
Link: https://lkml.kernel.org/r/20220820134400.959640191@goodmis.org
Cc: stable@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
Cc: Tom Zanussi <zanussi@kernel.org>
Fixes:
7491e2c44278 ("tracing: Add a probe that attaches to trace events")
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Steven Rostedt (Google) [Sat, 20 Aug 2022 13:43:18 +0000 (09:43 -0400)]
tracing/eprobes: Do not hardcode $comm as a string
The variable $comm is hard coded as a string, which is true for both
kprobes and uprobes, but for event probes (eprobes) it is a field name. In
most cases the "comm" field would be a string, but there's no guarantee of
that fact.
Do not assume that comm is a string. Not to mention, it currently forces
comm fields to fault, as string processing for event probes is currently
broken.
Link: https://lkml.kernel.org/r/20220820134400.756152112@goodmis.org
Cc: stable@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
Cc: Tom Zanussi <zanussi@kernel.org>
Fixes:
7491e2c44278 ("tracing: Add a probe that attaches to trace events")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Steven Rostedt (Google) [Sat, 20 Aug 2022 13:43:17 +0000 (09:43 -0400)]
tracing/eprobes: Do not allow eprobes to use $stack, or % for regs
While playing with event probes (eprobes), I tried to see what would
happen if I attempted to retrieve the instruction pointer (%rip) knowing
that event probes do not use pt_regs. The result was:
BUG: kernel NULL pointer dereference, address:
0000000000000024
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 1 PID: 1847 Comm: trace-cmd Not tainted 5.19.0-rc5-test+ #309
Hardware name: Hewlett-Packard HP Compaq Pro 6300 SFF/339A, BIOS K01
v03.03 07/14/2016
RIP: 0010:get_event_field.isra.0+0x0/0x50
Code: ff 48 c7 c7 c0 8f 74 a1 e8 3d 8b f5 ff e8 88 09 f6 ff 4c 89 e7 e8
50 6a 13 00 48 89 ef 5b 5d 41 5c 41 5d e9 42 6a 13 00 66 90 <48> 63 47 24
8b 57 2c 48 01 c6 8b 47 28 83 f8 02 74 0e 83 f8 04 74
RSP: 0018:
ffff916c394bbaf0 EFLAGS:
00010086
RAX:
ffff916c854041d8 RBX:
ffff916c8d9fbf50 RCX:
ffff916c255d2000
RDX:
0000000000000000 RSI:
ffff916c255d2008 RDI:
0000000000000000
RBP:
0000000000000000 R08:
ffff916c3a2a0c08 R09:
ffff916c394bbda8
R10:
0000000000000000 R11:
0000000000000000 R12:
ffff916c854041d8
R13:
ffff916c854041b0 R14:
0000000000000000 R15:
0000000000000000
FS:
0000000000000000(0000) GS:
ffff916c9ea40000(0000)
knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
0000000000000024 CR3:
000000011b60a002 CR4:
00000000001706e0
Call Trace:
<TASK>
get_eprobe_size+0xb4/0x640
? __mod_node_page_state+0x72/0xc0
__eprobe_trace_func+0x59/0x1a0
? __mod_lruvec_page_state+0xaa/0x1b0
? page_remove_file_rmap+0x14/0x230
? page_remove_rmap+0xda/0x170
event_triggers_call+0x52/0xe0
trace_event_buffer_commit+0x18f/0x240
trace_event_raw_event_sched_wakeup_template+0x7a/0xb0
try_to_wake_up+0x260/0x4c0
__wake_up_common+0x80/0x180
__wake_up_common_lock+0x7c/0xc0
do_notify_parent+0x1c9/0x2a0
exit_notify+0x1a9/0x220
do_exit+0x2ba/0x450
do_group_exit+0x2d/0x90
__x64_sys_exit_group+0x14/0x20
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
Obviously this is not the desired result.
Move the testing for TPARG_FL_TPOINT which is only used for event probes
to the top of the "$" variable check, as all the other variables are not
used for event probes. Also add a check in the register parsing "%" to
fail if an event probe is used.
Link: https://lkml.kernel.org/r/20220820134400.564426983@goodmis.org
Cc: stable@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
Cc: Tom Zanussi <zanussi@kernel.org>
Fixes:
7491e2c44278 ("tracing: Add a probe that attaches to trace events")
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Yang Jihong [Thu, 18 Aug 2022 03:26:59 +0000 (11:26 +0800)]
ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead
ftrace_startup does not remove ops from ftrace_ops_list when
ftrace_startup_enable fails:
register_ftrace_function
ftrace_startup
__register_ftrace_function
...
add_ftrace_ops(&ftrace_ops_list, ops)
...
...
ftrace_startup_enable // if ftrace failed to modify, ftrace_disabled is set to 1
...
return 0 // ops is in the ftrace_ops_list.
When ftrace_disabled = 1, unregister_ftrace_function simply returns without doing anything:
unregister_ftrace_function
ftrace_shutdown
if (unlikely(ftrace_disabled))
return -ENODEV; // return here, __unregister_ftrace_function is not executed,
// as a result, ops is still in the ftrace_ops_list
__unregister_ftrace_function
...
If ops is dynamically allocated, it will be free later, in this case,
is_ftrace_trampoline accesses NULL pointer:
is_ftrace_trampoline
ftrace_ops_trampoline
do_for_each_ftrace_op(op, ftrace_ops_list) // OOPS! op may be NULL!
Syzkaller reports as follows:
[ 1203.506103] BUG: kernel NULL pointer dereference, address:
000000000000010b
[ 1203.508039] #PF: supervisor read access in kernel mode
[ 1203.508798] #PF: error_code(0x0000) - not-present page
[ 1203.509558] PGD
800000011660b067 P4D
800000011660b067 PUD
130fb8067 PMD 0
[ 1203.510560] Oops: 0000 [#1] SMP KASAN PTI
[ 1203.511189] CPU: 6 PID: 29532 Comm: syz-executor.2 Tainted: G B W 5.10.0 #8
[ 1203.512324] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[ 1203.513895] RIP: 0010:is_ftrace_trampoline+0x26/0xb0
[ 1203.514644] Code: ff eb d3 90 41 55 41 54 49 89 fc 55 53 e8 f2 00 fd ff 48 8b 1d 3b 35 5d 03 e8 e6 00 fd ff 48 8d bb 90 00 00 00 e8 2a 81 26 00 <48> 8b ab 90 00 00 00 48 85 ed 74 1d e8 c9 00 fd ff 48 8d bb 98 00
[ 1203.518838] RSP: 0018:
ffffc900012cf960 EFLAGS:
00010246
[ 1203.520092] RAX:
0000000000000000 RBX:
000000000000007b RCX:
ffffffff8a331866
[ 1203.521469] RDX:
0000000000000000 RSI:
0000000000000008 RDI:
000000000000010b
[ 1203.522583] RBP:
0000000000000000 R08:
0000000000000000 R09:
ffffffff8df18b07
[ 1203.523550] R10:
fffffbfff1be3160 R11:
0000000000000001 R12:
0000000000478399
[ 1203.524596] R13:
0000000000000000 R14:
ffff888145088000 R15:
0000000000000008
[ 1203.525634] FS:
00007f429f5f4700(0000) GS:
ffff8881daf00000(0000) knlGS:
0000000000000000
[ 1203.526801] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
[ 1203.527626] CR2:
000000000000010b CR3:
0000000170e1e001 CR4:
00000000003706e0
[ 1203.528611] DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
[ 1203.529605] DR3:
0000000000000000 DR6:
00000000fffe0ff0 DR7:
0000000000000400
Therefore, when ftrace_startup_enable fails, we need to rollback registration
process and remove ops from ftrace_ops_list.
Link: https://lkml.kernel.org/r/20220818032659.56209-1-yangjihong1@huawei.com
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Steven Rostedt (Google) [Tue, 16 Aug 2022 23:28:17 +0000 (19:28 -0400)]
tracing/perf: Fix double put of trace event when init fails
If in perf_trace_event_init(), the perf_trace_event_open() fails, then it
will call perf_trace_event_unreg() which will not only unregister the perf
trace event, but will also call the put() function of the tp_event.
The problem here is that the trace_event_try_get_ref() is called by the
caller of perf_trace_event_init() and if perf_trace_event_init() returns a
failure, it will then call trace_event_put(). But since the
perf_trace_event_unreg() already called the trace_event_put() function, it
triggers a WARN_ON().
WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 trace_event_dyn_put_ref+0x15/0x20
If perf_trace_event_reg() does not call the trace_event_try_get_ref() then
the perf_trace_event_unreg() should not be calling trace_event_put(). This
breaks symmetry and causes bugs like these.
Pull out the trace_event_put() from perf_trace_event_unreg() and call it
in the locations that perf_trace_event_unreg() is called. This not only
fixes this bug, but also brings back the proper symmetry of the reg/unreg
vs get/put logic.
Link: https://lore.kernel.org/all/cover.1660347763.git.kjlx@templeofstupid.com/
Link: https://lkml.kernel.org/r/20220816192817.43d5e17f@gandalf.local.home
Cc: stable@vger.kernel.org
Fixes:
1d18538e6a092 ("tracing: Have dynamic events have a ref counter")
Reported-by: Krister Johansen <kjlx@templeofstupid.com>
Reviewed-by: Krister Johansen <kjlx@templeofstupid.com>
Tested-by: Krister Johansen <kjlx@templeofstupid.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>