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14 commits

Author SHA1 Message Date
Ville Syrjälä
1db5efe51f drm/i915/wm: Use per-device debugs ilk wm code
Switch to drm_dbg_kms() in the ilk wm code so we see which
device generated the debugs. Need to plumb i915 a bit deeper
to make that happen.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240208151720.7866-12-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-02-09 14:34:16 +02:00
Ville Syrjälä
167712d82a drm/i915/wm: Use per-device debugs in pre-ilk wm code
Switch to drm_dbg_kms() in the pre-ilk wm code so we see which
device generated the debugs. Need to plumb i915 a bit deeper
to make that happen.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240208151720.7866-11-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-02-09 14:34:06 +02:00
Ville Syrjälä
29d7a5b4d2 drm/i915/wm: Pass the whole i915 to intel_get_cxsr_latency()
Just pass the whole i915 to intel_get_cxsr_latency() instead
of having each caller dig out bits and pieces.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240208151720.7866-10-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2024-02-09 14:33:23 +02:00
Ville Syrjälä
ed1566a982 drm/i915: Drop crtc NULL check from intel_crtc_active()
intel_crtc_active() is never called with a NULL crtc. Drop
the redundant NULL check.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231207193441.20206-5-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2023-12-08 20:32:16 +02:00
Ville Syrjälä
8dfce5f309 drm/i915: Clean up some DISPLAY_VER checks
Use the >= and < operators for the DISPLAY_VER checks everywhere.
This is what most of the code does, but especially recently random
pieces of code have started doing this differently for no good reason.

Conversion done with the following cocci:
@find@
expression i915;
constant ver;
@@
(
DISPLAY_VER(i915) <= ver
|
DISPLAY_VER(i915) > ver
)

@script:python inc@
old_ver << find.ver;
new_ver;
@@
coccinelle.new_ver = str(int(old_ver) + 1)

@@
expression find.i915;
constant find.ver;
identifier inc.new_ver;
@@
(
- DISPLAY_VER(i915) <= ver
+ DISPLAY_VER(i915) < new_ver
|
- DISPLAY_VER(i915) > ver
+ DISPLAY_VER(i915) >= new_ver
)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231127145028.4899-4-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2023-11-29 17:06:36 +02:00
Jouni Högander
6f4f8aef7e drm/i915/display: Move enable_fbc module parameter under display
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024124109.384973-4-jouni.hogander@intel.com
2023-10-26 12:13:50 +03:00
Jani Nikula
476f62b8a5 drm/i915: use explicit includes for i915_reg.h and i915_irq.h
A lot of places include i915_reg.h implicitly via i915_irq.h, which gets
included implicitly via intel_display_trace.h. Remove the includes from
the headers, and include i915_reg.h and i915_irq.h explicitly where
needed.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230419094243.366821-1-jani.nikula@intel.com
2023-04-19 15:55:05 +03:00
Ville Syrjälä
76ec692721 drm/i915: Flag purely internal commits to not clear crtc_state->inherited
If we have to force the hardware to go through a full modeset
due to eg. cdclk reprogramming, we need to preserve
crtc_state->inherited for all crtcs that have not otherwise
gone through the whole compute_config() stuff after connectors
have been detected.

Otherwise eg. cdclk induced modeset glk_force_audio_cdclk()
will clear the inherited flag, and thus the first real commit
coming from userspace later on will not be forced through
the full .compute_config() path and so eg. audio state may
not get properly recomputed.

But instead of adding all kinds of ad-hoc crtc_state->inherited
preservation hacks all over, let's change things so that we
only clear it for the crtcs directly included in userspace/client
initiated commits.

Should be far less fragile since now we just need to remember
to flag the internal commits, and not worry about where new
crtcs might get pulled in.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5260
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230328122357.1697-1-ville.syrjala@linux.intel.com
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
2023-04-13 14:22:42 +03:00
Jani Nikula
95ccb25e32 drm/i915: remove unnecessary intel_pm.h includes
As intel_pm.[ch] used to contain much more, intel_pm.h was included in a
lot of places. Many of them are now unnecessary. Remove.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ab9a7147b0cd63d95b9f27ed40615b9c9be18f84.1677678803.git.jani.nikula@intel.com
2023-03-06 18:26:30 +02:00
Jani Nikula
ae2ac2d806 drm/i915/wm: remove ILK+ nop funcs fallback
Disabling ILK+ watermarks on failure to read the watermark levels dates
back to 2010 and commit 7f8a85698f ("drm/i915: Add the support of
memory self-refresh on Ironlake"), with no explanations, and it's been
copied and modified from that ever since. Finally drop it.

If the value are actually zero, the ilk_compute_*_wm() functions should
handle it gracefully.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
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>
Link: https://patchwork.freedesktop.org/patch/msgid/20230215141910.433043-5-jani.nikula@intel.com
2023-02-16 16:46:36 +02:00
Jani Nikula
7380f545a8 drm/i915/wm: warn about ilk_wm_sanitize() on display ver 9+
The sanitization should be limited to PCH split platforms up to display
version 8. Warn and bail out otherwise.

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/20230215141910.433043-2-jani.nikula@intel.com
2023-02-16 16:46:35 +02:00
Jani Nikula
3dadb4a170 drm/i915/wm: move ILK watermark sanitization to i9xx_wm.[ch]
Move sanitize_watermarks() to i9xx_wm.[ch] and rename as
ilk_wm_sanitize(). The slightly unfortunate downside is having to expose
intel_atomic_check() from intel_display.c, but this declutters
intel_display.c nicely.

v2:
- Move to i9xx_wm.[ch] instead of intel_wm.[ch] (Ville)

Cc: 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>
Link: https://patchwork.freedesktop.org/patch/msgid/20230215141910.433043-1-jani.nikula@intel.com
2023-02-16 16:46:35 +02:00
Jani Nikula
0e7a16f9dd drm/i915/wm: add .get_hw_state to watermark funcs
Get rid of the if ladder in intel_modeset_setup_hw_state() and hide a
number of functions by adding a .get_hw_state() hook to watermark
functions. At least for now, combine the platform specific sanitization
to the hw state readouts on the relevant platforms instead of adding a
separate hook for that.

There's a functional change on PCH split platforms: If i9xx_wm_init()
fails to read plane latency and chooses the nop functions,
ilk_wm_get_hw_state() won't get called for readout. Add the
ilk_init_lp_watermarks() call on that path which now won't be called in
.get_hw_state(), as it looks like the only thing that could make a
difference.

v2:
- Add missing static (kernel test robot)

Cc: 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>
Link: https://patchwork.freedesktop.org/patch/msgid/6da32831e40606cc8b90491b83196917f2ce36ab.1676317696.git.jani.nikula@intel.com
2023-02-15 12:00:50 +02:00
Jani Nikula
94b49d53ac drm/i915/wm: move remaining watermark code out of intel_pm.c
Add new files intel_wm.[ch] and i9xx_wm.[ch] under display/ to hold
generic and pre-SKL watermark code, respectively. SKL+ watermark code
has already been split out to skl_watermark.[ch].

Use the _wm.[ch] naming for brevity; we may want to rename
skl_watermark.[ch] later accordingly.

Add new intel_wm_init() to call either skl_wm_init() or
i9xx_wm_init(i915) depending on the platform, the latter comprising of
the remains of intel_init_pm().

Sprinkle in some minor checkpatch fixes while moving the code.

v2:
- Rebase
- Fix copyright year

Cc: 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>
Link: https://patchwork.freedesktop.org/patch/msgid/ddf04a07a37f0368b3fef85d4ebb924082fec6cd.1676317696.git.jani.nikula@intel.com
2023-02-15 12:00:50 +02:00