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9d4e26042c
A number of files have unnecessary i915_reg.h includes. Drop them. Reviewed-by: Michał Grzelak <michal.grzelak@intel.com> Link: https://lore.kernel.org/r/7c4002322f4d8132fd2eaa1a4d688539cdd043c3.1749469962.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2024 Intel Corporation
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*/
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#include <drm/drm_device.h>
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#include "i9xx_display_sr.h"
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#include "i9xx_wm_regs.h"
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#include "intel_de.h"
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#include "intel_display_regs.h"
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#include "intel_gmbus.h"
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#include "intel_pci_config.h"
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static void i9xx_display_save_swf(struct intel_display *display)
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{
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int i;
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/* Scratch space */
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if (DISPLAY_VER(display) == 2 && display->platform.mobile) {
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for (i = 0; i < 7; i++) {
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display->restore.saveSWF0[i] = intel_de_read(display, SWF0(display, i));
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display->restore.saveSWF1[i] = intel_de_read(display, SWF1(display, i));
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}
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for (i = 0; i < 3; i++)
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display->restore.saveSWF3[i] = intel_de_read(display, SWF3(display, i));
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} else if (DISPLAY_VER(display) == 2) {
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for (i = 0; i < 7; i++)
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display->restore.saveSWF1[i] = intel_de_read(display, SWF1(display, i));
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} else if (HAS_GMCH(display)) {
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for (i = 0; i < 16; i++) {
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display->restore.saveSWF0[i] = intel_de_read(display, SWF0(display, i));
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display->restore.saveSWF1[i] = intel_de_read(display, SWF1(display, i));
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}
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for (i = 0; i < 3; i++)
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display->restore.saveSWF3[i] = intel_de_read(display, SWF3(display, i));
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}
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}
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static void i9xx_display_restore_swf(struct intel_display *display)
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{
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int i;
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/* Scratch space */
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if (DISPLAY_VER(display) == 2 && display->platform.mobile) {
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for (i = 0; i < 7; i++) {
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intel_de_write(display, SWF0(display, i), display->restore.saveSWF0[i]);
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intel_de_write(display, SWF1(display, i), display->restore.saveSWF1[i]);
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}
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for (i = 0; i < 3; i++)
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intel_de_write(display, SWF3(display, i), display->restore.saveSWF3[i]);
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} else if (DISPLAY_VER(display) == 2) {
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for (i = 0; i < 7; i++)
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intel_de_write(display, SWF1(display, i), display->restore.saveSWF1[i]);
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} else if (HAS_GMCH(display)) {
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for (i = 0; i < 16; i++) {
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intel_de_write(display, SWF0(display, i), display->restore.saveSWF0[i]);
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intel_de_write(display, SWF1(display, i), display->restore.saveSWF1[i]);
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}
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for (i = 0; i < 3; i++)
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intel_de_write(display, SWF3(display, i), display->restore.saveSWF3[i]);
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}
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}
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void i9xx_display_sr_save(struct intel_display *display)
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{
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struct pci_dev *pdev = to_pci_dev(display->drm->dev);
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if (!HAS_DISPLAY(display))
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return;
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/* Display arbitration control */
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if (DISPLAY_VER(display) <= 4)
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display->restore.saveDSPARB = intel_de_read(display, DSPARB(display));
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if (DISPLAY_VER(display) == 4)
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pci_read_config_word(pdev, GCDGMBUS, &display->restore.saveGCDGMBUS);
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i9xx_display_save_swf(display);
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}
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void i9xx_display_sr_restore(struct intel_display *display)
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{
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struct pci_dev *pdev = to_pci_dev(display->drm->dev);
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if (!HAS_DISPLAY(display))
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return;
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i9xx_display_restore_swf(display);
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if (DISPLAY_VER(display) == 4)
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pci_write_config_word(pdev, GCDGMBUS, display->restore.saveGCDGMBUS);
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/* Display arbitration */
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if (DISPLAY_VER(display) <= 4)
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intel_de_write(display, DSPARB(display), display->restore.saveDSPARB);
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}
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