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drm/i915: move SKL clock gating init to display

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Move the SKL-specific display clock gating programming into a new file
inside display.

This removes dependency from intel_clock_gating.c to the display's
intel_pch.h file, so we can remove the include statement.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patch.msgid.link/20260428095104.818360-2-luciano.coelho@intel.com
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Luca Coelho 2026-04-28 12:48:19 +03:00
parent 9ec5a97340
commit 8a2366d6ee
4 changed files with 35 additions and 6 deletions
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1
drivers/gpu/drm/i915/Makefile
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@ -256,6 +256,7 @@ i915-y += \
display/intel_cursor.o \
display/intel_dbuf_bw.o \
display/intel_de.o \
display/intel_display_clock_gating.o \
display/intel_display.o \
display/intel_display_conversion.o \
display/intel_display_driver.o \

19
drivers/gpu/drm/i915/display/intel_display_clock_gating.c Normal file
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@ -0,0 +1,19 @@
// SPDX-License-Identifier: MIT
/*
* Copyright 2026 Intel Corporation
*/
#include <drm/intel/intel_gmd_misc_regs.h>
#include "intel_de.h"
#include "intel_display_clock_gating.h"
#include "intel_display_regs.h"
void intel_display_skl_init_clock_gating(struct intel_display *display)
{
/*
* WaFbcTurnOffFbcWatermark:skl
* Display WA #0562: skl
*/
intel_de_rmw(display, DISP_ARB_CTL, 0, DISP_FBC_WM_DIS);
}

13
drivers/gpu/drm/i915/display/intel_display_clock_gating.h Normal file
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@ -0,0 +1,13 @@
/* SPDX-License-Identifier: MIT */
/*
* Copyright 2026 Intel Corporation
*/
#ifndef __INTEL_DISPLAY_CLOCK_GATING_H__
#define __INTEL_DISPLAY_CLOCK_GATING_H__
struct intel_display;
void intel_display_skl_init_clock_gating(struct intel_display *display);
#endif /* __INTEL_DISPLAY_CLOCK_GATING_H__ */

8
drivers/gpu/drm/i915/intel_clock_gating.c
View File

@ -32,9 +32,9 @@
#include "display/i9xx_plane_regs.h"
#include "display/intel_display.h"
#include "display/intel_display_clock_gating.h"
#include "display/intel_display_core.h"
#include "display/intel_display_regs.h"
#include "display/intel_pch.h"
#include "gt/intel_engine_regs.h"
#include "gt/intel_gt.h"
#include "gt/intel_gt_mcr.h"
@ -349,11 +349,7 @@ static void skl_init_clock_gating(struct drm_i915_private *i915)
/* WAC6entrylatency:skl */
intel_uncore_rmw(&i915->uncore, FBC_LLC_READ_CTRL, 0, FBC_LLC_FULLY_OPEN);
/*
* WaFbcTurnOffFbcWatermark:skl
* Display WA #0562: skl
*/
intel_uncore_rmw(&i915->uncore, DISP_ARB_CTL, 0, DISP_FBC_WM_DIS);
intel_display_skl_init_clock_gating(i915->display);
}
static void bdw_init_clock_gating(struct drm_i915_private *i915)