Release 4.8 drivers/gpu/drm/i915/i915_suspend.c

/*
 *
 * Copyright 2008 (c) Intel Corporation
 *   Jesse Barnes <jbarnes@virtuousgeek.org>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include <drm/drmP.h>
#include <drm/i915_drm.h>
#include "intel_drv.h"
#include "i915_reg.h"



static void i915_save_display(struct drm_device *dev)
{
	struct drm_i915_private *dev_priv = to_i915(dev);

	/* Display arbitration control */
	if (INTEL_INFO(dev)->gen <= 4)
		dev_priv->regfile.saveDSPARB = I915_READ(DSPARB);

	/* LVDS state */
	if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
		dev_priv->regfile.saveLVDS = I915_READ(PCH_LVDS);
	else if (INTEL_INFO(dev)->gen <= 4 && IS_MOBILE(dev) && !IS_I830(dev))
		dev_priv->regfile.saveLVDS = I915_READ(LVDS);

	/* Panel power sequencer */
	if (HAS_PCH_SPLIT(dev)) {
		dev_priv->regfile.savePP_CONTROL = I915_READ(PCH_PP_CONTROL);
		dev_priv->regfile.savePP_ON_DELAYS = I915_READ(PCH_PP_ON_DELAYS);
		dev_priv->regfile.savePP_OFF_DELAYS = I915_READ(PCH_PP_OFF_DELAYS);
		dev_priv->regfile.savePP_DIVISOR = I915_READ(PCH_PP_DIVISOR);
	} else if (INTEL_INFO(dev)->gen <= 4) {
		dev_priv->regfile.savePP_CONTROL = I915_READ(PP_CONTROL);
		dev_priv->regfile.savePP_ON_DELAYS = I915_READ(PP_ON_DELAYS);
		dev_priv->regfile.savePP_OFF_DELAYS = I915_READ(PP_OFF_DELAYS);
		dev_priv->regfile.savePP_DIVISOR = I915_READ(PP_DIVISOR);
	}

	/* save FBC interval */
	if (HAS_FBC(dev) && INTEL_INFO(dev)->gen <= 4 && !IS_G4X(dev))
		dev_priv->regfile.saveFBC_CONTROL = I915_READ(FBC_CONTROL);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
yakui zhao
yakui zhao
46
18.55%
3
13.04%
zhenyu wang
zhenyu wang
44
17.74%
1
4.35%
jani nikula
jani nikula
32
12.90%
2
8.70%
jesse barnes
jesse barnes
28
11.29%
3
13.04%
chris wilson
chris wilson
27
10.89%
3
13.04%
daniel vetter
daniel vetter
23
9.27%
3
13.04%
paulo zanoni
paulo zanoni
21
8.47%
2
8.70%
ville syrjala
ville syrjala
9
3.63%
1
4.35%
keith packard
keith packard
8
3.23%
2
8.70%
matt roper
matt roper
5
2.02%
1
4.35%
wayne boyer
wayne boyer
3
1.21%
1
4.35%
ben gamari
ben gamari
2
0.81%
1
4.35%
Total
248
100.00%
23
100.00%



static void i915_restore_display(struct drm_device *dev)
{
	struct drm_i915_private *dev_priv = to_i915(dev);
	u32 mask = 0xffffffff;

	/* Display arbitration */
	if (INTEL_INFO(dev)->gen <= 4)
		I915_WRITE(DSPARB, dev_priv->regfile.saveDSPARB);

	mask = ~LVDS_PORT_EN;

	/* LVDS state */
	if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
		I915_WRITE(PCH_LVDS, dev_priv->regfile.saveLVDS & mask);
	else if (INTEL_INFO(dev)->gen <= 4 && IS_MOBILE(dev) && !IS_I830(dev))
		I915_WRITE(LVDS, dev_priv->regfile.saveLVDS & mask);

	/* Panel power sequencer */
	if (HAS_PCH_SPLIT(dev)) {
		I915_WRITE(PCH_PP_ON_DELAYS, dev_priv->regfile.savePP_ON_DELAYS);
		I915_WRITE(PCH_PP_OFF_DELAYS, dev_priv->regfile.savePP_OFF_DELAYS);
		I915_WRITE(PCH_PP_DIVISOR, dev_priv->regfile.savePP_DIVISOR);
		I915_WRITE(PCH_PP_CONTROL, dev_priv->regfile.savePP_CONTROL);
	} else if (INTEL_INFO(dev)->gen <= 4) {
		I915_WRITE(PP_ON_DELAYS, dev_priv->regfile.savePP_ON_DELAYS);
		I915_WRITE(PP_OFF_DELAYS, dev_priv->regfile.savePP_OFF_DELAYS);
		I915_WRITE(PP_DIVISOR, dev_priv->regfile.savePP_DIVISOR);
		I915_WRITE(PP_CONTROL, dev_priv->regfile.savePP_CONTROL);
	}

	/* only restore FBC info on the platform that supports FBC*/
	intel_fbc_global_disable(dev_priv);

	/* restore FBC interval */
	if (HAS_FBC(dev) && INTEL_INFO(dev)->gen <= 4 && !IS_G4X(dev))
		I915_WRITE(FBC_CONTROL, dev_priv->regfile.saveFBC_CONTROL);

	i915_redisable_vga(dev);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
ben gamari
ben gamari
84
30.77%
1
4.17%
zhenyu wang
zhenyu wang
59
21.61%
1
4.17%
jesse barnes
jesse barnes
28
10.26%
4
16.67%
paulo zanoni
paulo zanoni
28
10.26%
4
16.67%
daniel vetter
daniel vetter
26
9.52%
3
12.50%
yakui zhao
yakui zhao
21
7.69%
3
12.50%
ville syrjala
ville syrjala
9
3.30%
1
4.17%
chris wilson
chris wilson
7
2.56%
3
12.50%
matt roper
matt roper
5
1.83%
1
4.17%
wayne boyer
wayne boyer
3
1.10%
1
4.17%
jani nikula
jani nikula
2
0.73%
1
4.17%
keith packard
keith packard
1
0.37%
1
4.17%
Total
273
100.00%
24
100.00%



int i915_save_state(struct drm_device *dev)
{
	struct drm_i915_private *dev_priv = to_i915(dev);
	int i;

	mutex_lock(&dev->struct_mutex);

	i915_save_display(dev);

	if (IS_GEN4(dev))
		pci_read_config_word(dev->pdev, GCDGMBUS,
				     &dev_priv->regfile.saveGCDGMBUS);

	/* Cache mode state */
	if (INTEL_INFO(dev)->gen < 7)
		dev_priv->regfile.saveCACHE_MODE_0 = I915_READ(CACHE_MODE_0);

	/* Memory Arbitration state */
	dev_priv->regfile.saveMI_ARB_STATE = I915_READ(MI_ARB_STATE);

	/* Scratch space */
	if (IS_GEN2(dev_priv) && IS_MOBILE(dev_priv)) {
		for (i = 0; i < 7; i++) {
			dev_priv->regfile.saveSWF0[i] = I915_READ(SWF0(i));
			dev_priv->regfile.saveSWF1[i] = I915_READ(SWF1(i));
		}
		for (i = 0; i < 3; i++)
			dev_priv->regfile.saveSWF3[i] = I915_READ(SWF3(i));
	} else if (IS_GEN2(dev_priv)) {
		for (i = 0; i < 7; i++)
			dev_priv->regfile.saveSWF1[i] = I915_READ(SWF1(i));
	} else if (HAS_GMCH_DISPLAY(dev_priv)) {
		for (i = 0; i < 16; i++) {
			dev_priv->regfile.saveSWF0[i] = I915_READ(SWF0(i));
			dev_priv->regfile.saveSWF1[i] = I915_READ(SWF1(i));
		}
		for (i = 0; i < 3; i++)
			dev_priv->regfile.saveSWF3[i] = I915_READ(SWF3(i));
	}

	mutex_unlock(&dev->struct_mutex);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
ville syrjala
ville syrjala
153
46.65%
1
10.00%
ben gamari
ben gamari
92
28.05%
1
10.00%
jesse barnes
jesse barnes
35
10.67%
3
30.00%
yakui zhao
yakui zhao
17
5.18%
1
10.00%
keith packard
keith packard
16
4.88%
1
10.00%
daniel vetter
daniel vetter
12
3.66%
2
20.00%
chris wilson
chris wilson
3
0.91%
1
10.00%
Total
328
100.00%
10
100.00%



int i915_restore_state(struct drm_device *dev)
{
	struct drm_i915_private *dev_priv = to_i915(dev);
	int i;

	mutex_lock(&dev->struct_mutex);

	i915_gem_restore_fences(dev);

	if (IS_GEN4(dev))
		pci_write_config_word(dev->pdev, GCDGMBUS,
				      dev_priv->regfile.saveGCDGMBUS);
	i915_restore_display(dev);

	/* Cache mode state */
	if (INTEL_INFO(dev)->gen < 7)
		I915_WRITE(CACHE_MODE_0, dev_priv->regfile.saveCACHE_MODE_0 |
			   0xffff0000);

	/* Memory arbitration state */
	I915_WRITE(MI_ARB_STATE, dev_priv->regfile.saveMI_ARB_STATE | 0xffff0000);

	/* Scratch space */
	if (IS_GEN2(dev_priv) && IS_MOBILE(dev_priv)) {
		for (i = 0; i < 7; i++) {
			I915_WRITE(SWF0(i), dev_priv->regfile.saveSWF0[i]);
			I915_WRITE(SWF1(i), dev_priv->regfile.saveSWF1[i]);
		}
		for (i = 0; i < 3; i++)
			I915_WRITE(SWF3(i), dev_priv->regfile.saveSWF3[i]);
	} else if (IS_GEN2(dev_priv)) {
		for (i = 0; i < 7; i++)
			I915_WRITE(SWF1(i), dev_priv->regfile.saveSWF1[i]);
	} else if (HAS_GMCH_DISPLAY(dev_priv)) {
		for (i = 0; i < 16; i++) {
			I915_WRITE(SWF0(i), dev_priv->regfile.saveSWF0[i]);
			I915_WRITE(SWF1(i), dev_priv->regfile.saveSWF1[i]);
		}
		for (i = 0; i < 3; i++)
			I915_WRITE(SWF3(i), dev_priv->regfile.saveSWF3[i]);
	}

	mutex_unlock(&dev->struct_mutex);

	intel_i2c_reset(dev);

	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
ville syrjala
ville syrjala
154
45.16%
1
9.09%
jesse barnes
jesse barnes
129
37.83%
3
27.27%
ben gamari
ben gamari
19
5.57%
1
9.09%
keith packard
keith packard
16
4.69%
1
9.09%
daniel vetter
daniel vetter
10
2.93%
1
9.09%
chris wilson
chris wilson
9
2.64%
3
27.27%
eric anholt
eric anholt
4
1.17%
1
9.09%
Total
341
100.00%
11
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
ville syrjala
ville syrjala
325
27.02%
2
5.41%
jesse barnes
jesse barnes
227
18.87%
6
16.22%
ben gamari
ben gamari
197
16.38%
1
2.70%
zhenyu wang
zhenyu wang
103
8.56%
1
2.70%
yakui zhao
yakui zhao
84
6.98%
3
8.11%
daniel vetter
daniel vetter
71
5.90%
5
13.51%
paulo zanoni
paulo zanoni
49
4.07%
4
10.81%
chris wilson
chris wilson
46
3.82%
6
16.22%
keith packard
keith packard
41
3.41%
2
5.41%
jani nikula
jani nikula
34
2.83%
2
5.41%
matt roper
matt roper
10
0.83%
1
2.70%
wayne boyer
wayne boyer
6
0.50%
1
2.70%
eric anholt
eric anholt
5
0.42%
1
2.70%
eugeni dodonov
eugeni dodonov
3
0.25%
1
2.70%
david howells
david howells
2
0.17%
1
2.70%
Total
1203
100.00%
37
100.00%
  
Directory: drivers/gpu/drm/i915

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.