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I'll need to move the wm readout to an earlier point in the
sequence (since the bw state readout will need ddb information
from the wm readout). But (at least for now) the wm sanitation
will need to stay put as it needs to also sanitize things for
any pipes/planes we disable later during the hw state takeover.
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-16-ville.syrjala@linux.intel.com
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Instead of hand rolling the cdclk state disabling for a
pipe in noatomic() let's just recompute the whole thing
from scratch. Less code we have to remember to keep in sync.
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-15-ville.syrjala@linux.intel.com
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intel_crtc_calculate_min_cdclk() can't return an error
(since commit 5ac860cc5254 ("drm/i915: Fix DBUF bandwidth vs.
cdclk handling")) so there is no point in checking for one.
Also we can just call it unconditionally since it itself
checks crtc_state->hw.enabled. We are currently checking
crtc_state->hw.active in the readout path, but active==enabled
during readout, and arguably enabled is the more correct thing
to check anyway.
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-14-ville.syrjala@linux.intel.com
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We only compute bw_state->data_rate and bw_state->num_active_planes
on icl+. Do the same during readout so that we don't leave random
junk inside the state.
v2: Skip the whole intel_bw_crtc_update() (Vinod)
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-13-ville.syrjala@linux.intel.com
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Update bw_state->active_pipes during readout.
This was completely missing from the current readout code.
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-12-ville.syrjala@linux.intel.com
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Hoist the bw stuff into a separate function from
intel_modeset_readout_hw_state() so that the details
are better hidden inside intel_bw.c.
We can also skip the whole thing on pre-skl since the dbuf state
isn't actually used on those platforms.
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-11-ville.syrjala@linux.intel.com
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Hoist the cdclk stuff into a separate function from
intel_modeset_readout_hw_state() so that the details
are better hidden inside intel_cdclk.c.
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-10-ville.syrjala@linux.intel.com
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Hoist the bw stuff into a separate function from
intel_crtc_disable_noatomic_complete() so that the details
are better hidden inside intel_bw.c.
We can also skip the whole thing on pre-skl since the dbuf state
isn't actually used on those platforms.
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-9-ville.syrjala@linux.intel.com
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Add skl_wm_plane_disable_noatomic() which will clear out all
the ddb and wm state for the plane. And let's do this _before_
we call plane->disable_arm() so that it'll actually clear out
the state in the hardware as well.
Currently this won't do anything new for most of the
intel_plane_disable_noatomic() calls since those are done before
wm readout, and thus everything wm/ddb related in the state
will still be zeroed anyway. The only difference will be for
skl_dbuf_sanitize() is happens after wm readout. But I'll be
reordering thigns so that wm readout happens earlier and at that
point this will guarantee that we still clear out the old
wm/ddb junk from the state.
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-8-ville.syrjala@linux.intel.com
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Update the ddb tracking information when we disable a pipe
during sanitization. Avoids leaving stale junk in the states.
Currently this doesn't do anything as we haven't read out this
state yet when we do the sanitization, but that will change soon.
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-7-ville.syrjala@linux.intel.com
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Hoist the dbuf stuff into a separate function from
intel_crtc_disable_noatomic_complete() so that the details
are better hidden inside skl_watermark.c.
We can also skip the whole thing on pre-skl since the dbuf state
isn't actually used on those platforms. The readout path does
still fill dbuf_state->active_pipes but we'll remedy that later.
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-6-ville.syrjala@linux.intel.com
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Hoist the cdclk stuff into a separate function from
intel_crtc_disable_noatomic_complete() so that the details
are better hidden inside intel_cdclk.c.
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-5-ville.syrjala@linux.intel.com
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Reuse intel_plane_set_invisible() in intel_plane_disable_noatomic()
instead of hand rolling the same stuff.
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-4-ville.syrjala@linux.intel.com
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Inactive crtcs are supposed to have their crtc_state completely
cleared. Currently we are clobbering crtc_state->cpu_transcoder
before determining whether it's actually enabled or not. Don't
do that.
I want to rework the inherited flag handling for inactive crtcs
a bit, and having a bogus cpu_transcoder in the crtc state can
then cause confusing fastset mismatches even when the crtc never
changes state during the commit.
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-3-ville.syrjala@linux.intel.com
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The crtc state is expected to be fully cleared before readout,
so there is no need to clear the shared_dpll pointers by hand.
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-2-ville.syrjala@linux.intel.com
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Bspec asks us to clear the CURSOR_PROGRAM and COEFF_POLARITY
bits in PORT_TX_DW5 on icl+ combo PHYs. Make it so.
Bspec: 21257, 49291
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250303123952.5669-2-ville.syrjala@linux.intel.com
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
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Going forward, struct intel_display is the main display device data
pointer. Convert intel_atomic_plane.[ch] to struct intel_display.
Reviewed-by: Nemesa Garg <nemesa.garg@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d7e28ad43f67d92e54fb7e14373872b5e561038c.1741192597.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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The compat i915_drv.h contains things that aren't there in the original
i915_drv.h. Split out gem/i915_gem_object.h and i915_scheduler_types.h,
moving the corresponding pieces out, including FORCEWAKE_ALL to
intel_uncore.h.
Technically I915_PRIORITY_DISPLAY should be in i915_priolist_types.h,
but it's a bit overkill to split out another file just for
that. i915_scheduler_types.h shall do.
With this, the compat i915_drv.h becomes a strict subset of the
original.
Reviewed-by: Nemesa Garg <nemesa.garg@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d6bd95bf52aa37f48ddec3e675b7a3cc66829eef.1741192597.git.jani.nikula@intel.com
[Jani: fix i915_gem_object.h header guard while applying]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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We currently call intel_set_cdclk_post_plane_update() far
too early. When pipes are active during the reprogramming
the current spot only works for the cd2x divider update
case, as that is synchronize to the pipe's vblank. Squashing
and crawling are not synchronized in any way, so doing the
programming while the pipes/planes are potentially still using
the old hardware state could lead to underruns.
Move the post plane reprgramming to a spot where we know
that the pipes/planes have switched over the new hardware
state.
Cc: stable@vger.kernel.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250218211913.27867-2-ville.syrjala@linux.intel.com
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
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The callback fb_probe in struct drm_fb_helper is unused. Remove it.
New drivers should set struct drm_driver.fbdev_probe instead and call
drm_client_setup() to instantiate in-kernel DRM clients.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-13-tzimmermann@suse.de
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
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If fbdev support has been disabled, no output will be shown. Remove
the fbdev-related compile guard from the driver's debugfs code.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-12-tzimmermann@suse.de
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
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Rework fbdev probing to support fbdev_probe in struct drm_driver
and remove the old fb_probe callback. Provide an initializer macro
that sets the callback in struct drm_driver according to the kernel
configuration. Call drm_client_setup_with_color_mode() to run the
kernel's default client setup for DRM.
This commit also prepares support for the kernel's drm_log client
(or any future client) in i915. Using drm_log will also require vmap
support in GEM objects.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-11-tzimmermann@suse.de
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
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Move fbdev code around in the source file before switching to DRM's
generic fbdev client. This will make the conversion less intrusive.
No functional changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-10-tzimmermann@suse.de
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
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Store instances of drm_fb_helper and struct intel_fbdev separately.
This will allow i915 to use the common fbdev client, which allocates
its own instance of struct drm_fb_helper.
There is at most one instance of type each per DRM device, so both can
be referenced directly from the i915 and DRM device structures. A later
patchset might rework the common fbdev client to allow for storing
both, drm_fb_helper and intel_fbdev, together in the same place.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-9-tzimmermann@suse.de
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
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The value preferred_bpp in struct intel_fbdev duplicates preferred_bpp
in struct drm_fb_helper. Remove the former.
Instead let intel_fbdev_init_bios() read the framebuffer from the
hardware. Then derive preferred_bpp from its format and initialize
struct drm_fb_helper with the value. The default is 32 (i.e., XRGB8888).
Also removes one of those deprecated references to the cpp field of
struct drm_format_info.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-8-tzimmermann@suse.de
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
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If the fbdev buffer is backed by stolen memory, it has to be cleared
upon resume from hibernation. Move the code into the new callback
fb_set_suspend, so that it can run from DRM's generic fbdev client.
No functional change. Other drivers are not affected.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-7-tzimmermann@suse.de
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
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i915's fbdev contains code for restoring the client's framebuffer. It
is specific to i195 and cannot be ported to the common fbdev client.
Introduce the callback struct drm_fb_helper.fb_restore and implement
it for i915. The fbdev helpers invoke the callback after restoring the
fbdev client.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-6-tzimmermann@suse.de
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
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The DRM client code already tracks suspend status and hotplug events
for each client. Remove similar code from i915's fbdev client.
Allows for the removal of all hdp_* fields form struct intel_fbdev.
Calls to intel_fbdev_output_poll_changed() are reduced the shared
helper drm_fb_helper_hotplug_event().
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-5-tzimmermann@suse.de
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
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If a hotplug event arrives while the client has been suspended,
DRM's client code will deliver the event after resuming. The
functionality has been taken form i915, where it can be removed
by a later commit.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-4-tzimmermann@suse.de
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
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Move client hotplug calls to drm_client_hotplug(). We'll need this
helper to send hotplug events after resuming.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-3-tzimmermann@suse.de
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
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Implement drm_client_dev_suspend() and drm_client_dev_resume() for
i915's fbdev emulation and call the helper via DRM client interfaces.
This is required to convert i915 and xe to DRM's generic fbdev client.
No functional changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-2-tzimmermann@suse.de
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
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FBDEV ggtt is not restored correctly, add missing GGTT flag to
intel_fbdev_fb_alloc to make it work. This ensures that the global
GGTT mapping is always restored on resume. The GGTT mapping would
otherwise be created in intel_fb_pin_to_ggtt() by intel_fbdev anyway.
This fixes the fbdev device not working after resume.
Fixes: 67a98f7e27ba ("drm/xe/display: Re-use display vmas when possible")
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250305110106.564366-1-dev@lankhorst.se
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
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Going forward, struct intel_display is the main display device data
pointer. Convert as much as possible of intel_display.c to struct
intel_display.
This exposes a couple of outside issues that need to be fixed as well,
in a register macro and a DSI PLL stub.
Reviewed-by: Nemesa Garg <nemesa.garg@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1c0bafcb978d1cf4f4d54be2f497386f5302f7c8.1741084010.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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intel_wm.h already has intel_update_watermarks() declaration. Remove the
dupe.
Reviewed-by: Nemesa Garg <nemesa.garg@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/67eeebff3ec9459f7854fbc56cfd7f2aa8c1fdc6.1741084010.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Going forward, struct intel_display is the main display device data
pointer. The intel_display.[ch] files are too big to convert in one
go. Convert intel_has_pending_fb_unpin() to struct intel_display.
Reviewed-by: Nemesa Garg <nemesa.garg@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d70ad8f9cbba5ee32d985b76047b56996ad4b31e.1741084010.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Going forward, struct intel_display is the main display device data
pointer. The intel_display.[ch] files are too big to convert in one
go. Convert the interface towards intel_display_driver.c to struct
intel_display.
Reviewed-by: Nemesa Garg <nemesa.garg@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ee8b108420763cbf47ee77fa35b782a7293f9cfe.1741084010.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Going forward, struct intel_display is the main display device data
pointer. The intel_display.[ch] files are too big to convert in one
go. Convert the various port/phy helpers to struct intel_display.
Reviewed-by: Nemesa Garg <nemesa.garg@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/e28e53bad5014ba3ef17431557b517f1b8530963.1741084010.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Drop the dependency on gt by providing a callback for trying to unbreak
stuck modeset. Do intel_gt_set_wedged() via the callback.
It's by no means pretty, but this is perhaps the most straightforward
alternative.
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d322e20927326afa47c0df8a4d4776ee77010e6d.1741001054.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Deduplicate the gpu_reset_clobbers_display() part by passing the
information in from gt side.
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a36481db334fedcde50ae0e66c4d57825cae8cb7.1741001054.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Move the checks for whether display reset is needed at all to gt side of
things. This way, we can decide to skip the display calls altogether if
display reset is not required.
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c32a88f292f516ec702bd07001ac609b8acc2888.1741001054.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Since commit d59cf7bb73f3 ("drm/i915/display: Use dma_fence interfaces
instead of i915_sw_fence") we don't have anyone waiting on the
I915_RESET_MODESET bit, and there's no need for its semantics. Instead,
simply return true from intel_display_reset_prepare() to indicate that
intel_display_reset_finish() should be called.
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/294690db3fae8fec7f356edf467e79882ed494db.1741001054.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Add a helper for checking if we want to test display reset regardless of
whether it's strictly necessary. This will come in handy in follow-up
work where we want to check this from gt reset side.
v2: Drop superfluous newline
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/487dec72f753302cd565c3a8164afa7fc1e12ed7.1741001054.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Add a helper for checking the gpu_reset_clobbers_display flag to make it
easier to relocate the flag later.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/434d5db7675ed9717b3beae1389008b68a961855.1741001054.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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pending_fb_pin is more about display than GPU reset. Move it to struct
intel_display. The restore sub-struct already contains reset related
members, so move it there.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ff779ae318610e6f6813474bcaa53851ffff909d.1741001054.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Going forward, struct intel_display will be the main display device
structure. Convert display reset to it as much as possible.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/060c309189f1c084e012521822f4a0247f64528e.1741001054.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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During enabling FBC, for the very first frame, the prepare dirty
rect routine wouldnt have executed as at that time the plane
reference in the fbc_state would be NULL. So this could make
driver program some invalid entries as the damage area. Though
fbc hw ignores the dirty rect values programmed for the first
frame after enabling FBC, driver must ensure that valid dirty
rect coords are programmed. So ensure that for the first frame
correct dirty rect coords are updated to the HW.
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250228093802.27091-10-vinod.govindapillai@intel.com
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It is not recommended to have both FBC dirty rect and PSR2
selective fetch be enabled at the same time. Mark FBC as not
possible, if PSR2 selective fetch is enabled.
v2: fix the condition to disable FBC if PSR2 enabled (Jani)
v3: use HAS_FBC_DIRTY_RECT()
v4: Update to patch description
Bspec: 68881
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250228093802.27091-9-vinod.govindapillai@intel.com
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Dirty rectangle feature allows FBC to recompress a subsection
of a frame. When this feature is enabled, display will read
the scan lines between dirty rectangle start line and dirty
rectangle end line in subsequent frames.
Use the merged damage clip stored in the plane state to
configure the FBC dirty rect areas.
v2: - Move dirty rect handling to fbc state (Ville)
v3: - Use intel_fbc_dirty_rect_update_noarm (Ville)
- Split plane damage collection and dirty rect preparation
- Handle case where dirty rect fall outside the visible region
v4: - A state variable to check if we need to update dirty rect
registers in case intel_fbc_can_flip_nuke() (Ville)
v5: - No need to use a separate valid flag, updates to the
conditions for prepare damage rect (Ville)
- Usage of locks in fbc dirty rect related functions (Ville)
v6: - updates dirty rect handling (Ville)
v7: - Loop through all planes in atomic state is good enough (Ville)
Bspec: 68881, 71675, 73424
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250228093802.27091-8-vinod.govindapillai@intel.com
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If FBC is already active, we don't need to call FBC activate
routine again unless there are changes to the fences. So skip
this on all platforms that don't have fences. Any FBC register
updates done after enabling the dirty rect support in xe3 will
trigger nuke by FBC which is counter productive to the fbc
dirty rect feature.
The front buffer rendering sequence will call intel_fbc_flush()
and which will call intel_fbc_nuke() or intel_fbc_activate()
based on FBC status explicitly and won't get impacted by this
change.
v2: use HAS_FBC_DIRTY_RECT()
move this functionality within intel_fbc_activate()
v3: update to intel_fbc_activate logic (Ville)
update to the patch description
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250228093802.27091-7-vinod.govindapillai@intel.com
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Introduce a macro to check if the platform supports FBC dirty
rect capability.
v2: - update to the patch subject
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250228093802.27091-6-vinod.govindapillai@intel.com
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Ville Syrjälä
Jani Nikula
Thomas Zimmermann
Maarten Lankhorst
Vinod Govindapillai