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ec3a347bea
Support commits via the flip queue (as opposed to DSB or MMIO).
As it's somewhat unknown if we can actually use it is currently
gated behind the new use_flipq modparam, which defaults to disabled.
The implementation has a bunch of limitations that would need
real though to solve:
- disabled when PSR is used
- disabled when VRR is used
- color management updates not performed via the flip queue
v2: Don't use flip queue if there is no dmc
v3: Use intel_flipq_supported()
v3: Configure PKG_C_LATENCY appropriately
Ignore INT_VECTOR if there is a real PIPEDMC interrupt
(nothing in the hw appears to clear INT_VECTOR)
v4: Leave added_wake_time=0 when flip queue isn't used, to
avoid needleslly increasing pkg_c_latency on lnl/ptl due
to Wa_22020432604. This is a bit racy though...
Use IS_DISPLAY_VER()
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250624170049.27284-6-ville.syrjala@linux.intel.com
64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2023 Intel Corporation
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*/
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#ifndef _INTEL_DISPLAY_PARAMS_H_
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#define _INTEL_DISPLAY_PARAMS_H_
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#include <linux/types.h>
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struct drm_printer;
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/*
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* Invoke param, a function-like macro, for each intel display param, with
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* arguments:
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*
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* param(type, name, value, mode)
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*
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* type: parameter type, one of {bool, int, unsigned int, unsigned long, char *}
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* name: name of the parameter
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* value: initial/default value of the parameter
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* mode: debugfs file permissions, one of {0400, 0600, 0}, use 0 to not create
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* debugfs file
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*/
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#define INTEL_DISPLAY_PARAMS_FOR_EACH(param) \
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param(char *, dmc_firmware_path, NULL, 0400) \
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param(char *, vbt_firmware, NULL, 0400) \
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param(int, lvds_channel_mode, 0, 0400) \
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param(int, panel_use_ssc, -1, 0600) \
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param(int, vbt_sdvo_panel_type, -1, 0400) \
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param(int, enable_dc, -1, 0400) \
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param(bool, enable_dpt, true, 0400) \
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param(bool, enable_dsb, true, 0600) \
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param(bool, enable_flipq, false, 0600) \
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param(bool, enable_sagv, true, 0600) \
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param(int, disable_power_well, -1, 0400) \
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param(bool, enable_ips, true, 0600) \
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param(int, invert_brightness, 0, 0600) \
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param(int, edp_vswing, 0, 0400) \
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param(int, enable_dpcd_backlight, -1, 0600) \
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param(bool, load_detect_test, false, 0600) \
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param(bool, force_reset_modeset_test, false, 0600) \
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param(bool, disable_display, false, 0400) \
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param(bool, verbose_state_checks, true, 0400) \
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param(bool, nuclear_pageflip, false, 0400) \
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param(bool, enable_dp_mst, true, 0600) \
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param(int, enable_fbc, -1, 0600) \
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param(int, enable_psr, -1, 0600) \
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param(bool, psr_safest_params, false, 0400) \
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param(bool, enable_psr2_sel_fetch, true, 0400) \
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param(int, enable_dmc_wl, -1, 0400) \
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#define MEMBER(T, member, ...) T member;
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struct intel_display_params {
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INTEL_DISPLAY_PARAMS_FOR_EACH(MEMBER);
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};
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#undef MEMBER
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void intel_display_params_dump(const struct intel_display_params *params,
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const char *driver_name, struct drm_printer *p);
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void intel_display_params_copy(struct intel_display_params *dest);
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void intel_display_params_free(struct intel_display_params *params);
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#endif
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