Release 4.11 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_i915_private *dev_priv)
{
	/* Display arbitration control */
	if (INTEL_GEN(dev_priv) <= 4)
		dev_priv->regfile.saveDSPARB = I915_READ(DSPARB);

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

Contributors
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Chris Wilson
14
21.88%
1
6.67%
Yakui Zhao
13
20.31%
3
20.00%
Tvrtko A. Ursulin
8
12.50%
2
13.33%
Paulo Zanoni
7
10.94%
1
6.67%
Ville Syrjälä
7
10.94%
1
6.67%
Daniel Vetter
7
10.94%
3
20.00%
Jesse Barnes
5
7.81%
2
13.33%
Ben Gamari
2
3.12%
1
6.67%
Keith Packard
1
1.56%
1
6.67%
Total
64
100.00%
15
100.00%



static void i915_restore_display(struct drm_i915_private *dev_priv)
{
	/* Display arbitration */
	if (INTEL_GEN(dev_priv) <= 4)
		I915_WRITE(DSPARB, dev_priv->regfile.saveDSPARB);

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

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

	i915_redisable_vga(dev_priv);
}

Contributors
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Commits
CommitProp
Ben Gamari
19
25.33%
1
5.88%
Yakui Zhao
17
22.67%
3
17.65%
Paulo Zanoni
9
12.00%
3
17.65%
Tvrtko A. Ursulin
9
12.00%
2
11.76%
Ville Syrjälä
7
9.33%
1
5.88%
Daniel Vetter
6
8.00%
3
17.65%
Jesse Barnes
4
5.33%
2
11.76%
Chris Wilson
3
4.00%
1
5.88%
Keith Packard
1
1.33%
1
5.88%
Total
75
100.00%
17
100.00%



int i915_save_state(struct drm_i915_private *dev_priv)
{
	struct pci_dev *pdev = dev_priv->drm.pdev;
	int i;

	mutex_lock(&dev_priv->drm.struct_mutex);

	i915_save_display(dev_priv);

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

	/* Cache mode state */
	if (INTEL_GEN(dev_priv) < 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_priv->drm.struct_mutex);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ville Syrjälä
153
46.50%
1
7.69%
Ben Gamari
91
27.66%
1
7.69%
Jesse Barnes
27
8.21%
3
23.08%
Keith Packard
14
4.26%
1
7.69%
Daniel Vetter
12
3.65%
2
15.38%
Tvrtko A. Ursulin
12
3.65%
3
23.08%
David Weinehall
11
3.34%
1
7.69%
Yakui Zhao
9
2.74%
1
7.69%
Total
329
100.00%
13
100.00%



int i915_restore_state(struct drm_i915_private *dev_priv)
{
	struct pci_dev *pdev = dev_priv->drm.pdev;
	int i;

	mutex_lock(&dev_priv->drm.struct_mutex);

	i915_gem_restore_fences(dev_priv);

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

	/* Cache mode state */
	if (INTEL_GEN(dev_priv) < 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_priv->drm.struct_mutex);

	intel_i2c_reset(dev_priv);

	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Ville Syrjälä
154
45.03%
1
6.67%
Jesse Barnes
120
35.09%
3
20.00%
Keith Packard
14
4.09%
1
6.67%
Tvrtko A. Ursulin
14
4.09%
4
26.67%
Ben Gamari
11
3.22%
1
6.67%
David Weinehall
11
3.22%
1
6.67%
Daniel Vetter
10
2.92%
1
6.67%
Chris Wilson
5
1.46%
2
13.33%
Eric Anholt
3
0.88%
1
6.67%
Total
342
100.00%
15
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Ville Syrjälä
321
39.00%
2
6.25%
Jesse Barnes
163
19.81%
4
12.50%
Ben Gamari
123
14.95%
1
3.12%
Tvrtko A. Ursulin
43
5.22%
5
15.62%
Yakui Zhao
39
4.74%
3
9.38%
Daniel Vetter
35
4.25%
5
15.62%
Keith Packard
30
3.65%
1
3.12%
Chris Wilson
22
2.67%
4
12.50%
David Weinehall
22
2.67%
1
3.12%
Paulo Zanoni
16
1.94%
3
9.38%
Eric Anholt
4
0.49%
1
3.12%
Eugeni Dodonov
3
0.36%
1
3.12%
David Howells
2
0.24%
1
3.12%
Total
823
100.00%
32
100.00%
Directory: drivers/gpu/drm/i915

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