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path: root/drivers/gpu/drm/i915/i915_suspend.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_suspend.c')
-rw-r--r--drivers/gpu/drm/i915/i915_suspend.c87
1 files changed, 25 insertions, 62 deletions
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index 70db618989c..043123c77a1 100644
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -192,7 +192,6 @@ static void i915_restore_vga(struct drm_device *dev)
static void i915_save_display(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- unsigned long flags;
/* Display arbitration control */
if (INTEL_INFO(dev)->gen <= 4)
@@ -203,30 +202,27 @@ static void i915_save_display(struct drm_device *dev)
if (!drm_core_check_feature(dev, DRIVER_MODESET))
i915_save_display_reg(dev);
- spin_lock_irqsave(&dev_priv->backlight.lock, flags);
-
/* LVDS state */
if (HAS_PCH_SPLIT(dev)) {
dev_priv->regfile.savePP_CONTROL = I915_READ(PCH_PP_CONTROL);
- dev_priv->regfile.saveBLC_PWM_CTL = I915_READ(BLC_PWM_PCH_CTL1);
- dev_priv->regfile.saveBLC_PWM_CTL2 = I915_READ(BLC_PWM_PCH_CTL2);
- dev_priv->regfile.saveBLC_CPU_PWM_CTL = I915_READ(BLC_PWM_CPU_CTL);
- dev_priv->regfile.saveBLC_CPU_PWM_CTL2 = I915_READ(BLC_PWM_CPU_CTL2);
if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
dev_priv->regfile.saveLVDS = I915_READ(PCH_LVDS);
+ } else if (IS_VALLEYVIEW(dev)) {
+ dev_priv->regfile.savePP_CONTROL = I915_READ(PP_CONTROL);
+ dev_priv->regfile.savePFIT_PGM_RATIOS = I915_READ(PFIT_PGM_RATIOS);
+
+ dev_priv->regfile.saveBLC_HIST_CTL =
+ I915_READ(VLV_BLC_HIST_CTL(PIPE_A));
+ dev_priv->regfile.saveBLC_HIST_CTL_B =
+ I915_READ(VLV_BLC_HIST_CTL(PIPE_B));
} else {
dev_priv->regfile.savePP_CONTROL = I915_READ(PP_CONTROL);
dev_priv->regfile.savePFIT_PGM_RATIOS = I915_READ(PFIT_PGM_RATIOS);
- dev_priv->regfile.saveBLC_PWM_CTL = I915_READ(BLC_PWM_CTL);
dev_priv->regfile.saveBLC_HIST_CTL = I915_READ(BLC_HIST_CTL);
- if (INTEL_INFO(dev)->gen >= 4)
- dev_priv->regfile.saveBLC_PWM_CTL2 = I915_READ(BLC_PWM_CTL2);
if (IS_MOBILE(dev) && !IS_I830(dev))
dev_priv->regfile.saveLVDS = I915_READ(LVDS);
}
- spin_unlock_irqrestore(&dev_priv->backlight.lock, flags);
-
if (!IS_I830(dev) && !IS_845G(dev) && !HAS_PCH_SPLIT(dev))
dev_priv->regfile.savePFIT_CONTROL = I915_READ(PFIT_CONTROL);
@@ -240,19 +236,9 @@ static void i915_save_display(struct drm_device *dev)
dev_priv->regfile.savePP_DIVISOR = I915_READ(PP_DIVISOR);
}
- /* Only regfile.save FBC state on the platform that supports FBC */
- if (I915_HAS_FBC(dev)) {
- if (HAS_PCH_SPLIT(dev)) {
- dev_priv->regfile.saveDPFC_CB_BASE = I915_READ(ILK_DPFC_CB_BASE);
- } else if (IS_GM45(dev)) {
- dev_priv->regfile.saveDPFC_CB_BASE = I915_READ(DPFC_CB_BASE);
- } else {
- dev_priv->regfile.saveFBC_CFB_BASE = I915_READ(FBC_CFB_BASE);
- dev_priv->regfile.saveFBC_LL_BASE = I915_READ(FBC_LL_BASE);
- dev_priv->regfile.saveFBC_CONTROL2 = I915_READ(FBC_CONTROL2);
- dev_priv->regfile.saveFBC_CONTROL = I915_READ(FBC_CONTROL);
- }
- }
+ /* save FBC interval */
+ if (HAS_FBC(dev) && INTEL_INFO(dev)->gen <= 4 && !IS_G4X(dev))
+ dev_priv->regfile.saveFBC_CONTROL = I915_READ(FBC_CONTROL);
if (!drm_core_check_feature(dev, DRIVER_MODESET))
i915_save_vga(dev);
@@ -262,7 +248,6 @@ static void i915_restore_display(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
u32 mask = 0xffffffff;
- unsigned long flags;
/* Display arbitration */
if (INTEL_INFO(dev)->gen <= 4)
@@ -271,12 +256,6 @@ static void i915_restore_display(struct drm_device *dev)
if (!drm_core_check_feature(dev, DRIVER_MODESET))
i915_restore_display_reg(dev);
- spin_lock_irqsave(&dev_priv->backlight.lock, flags);
-
- /* LVDS state */
- if (INTEL_INFO(dev)->gen >= 4 && !HAS_PCH_SPLIT(dev))
- I915_WRITE(BLC_PWM_CTL2, dev_priv->regfile.saveBLC_PWM_CTL2);
-
if (drm_core_check_feature(dev, DRIVER_MODESET))
mask = ~LVDS_PORT_EN;
@@ -289,22 +268,19 @@ static void i915_restore_display(struct drm_device *dev)
I915_WRITE(PFIT_CONTROL, dev_priv->regfile.savePFIT_CONTROL);
if (HAS_PCH_SPLIT(dev)) {
- I915_WRITE(BLC_PWM_PCH_CTL1, dev_priv->regfile.saveBLC_PWM_CTL);
- I915_WRITE(BLC_PWM_PCH_CTL2, dev_priv->regfile.saveBLC_PWM_CTL2);
- /* NOTE: BLC_PWM_CPU_CTL must be written after BLC_PWM_CPU_CTL2;
- * otherwise we get blank eDP screen after S3 on some machines
- */
- I915_WRITE(BLC_PWM_CPU_CTL2, dev_priv->regfile.saveBLC_CPU_PWM_CTL2);
- I915_WRITE(BLC_PWM_CPU_CTL, dev_priv->regfile.saveBLC_CPU_PWM_CTL);
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);
I915_WRITE(RSTDBYCTL,
dev_priv->regfile.saveMCHBAR_RENDER_STANDBY);
+ } else if (IS_VALLEYVIEW(dev)) {
+ I915_WRITE(VLV_BLC_HIST_CTL(PIPE_A),
+ dev_priv->regfile.saveBLC_HIST_CTL);
+ I915_WRITE(VLV_BLC_HIST_CTL(PIPE_B),
+ dev_priv->regfile.saveBLC_HIST_CTL);
} else {
I915_WRITE(PFIT_PGM_RATIOS, dev_priv->regfile.savePFIT_PGM_RATIOS);
- I915_WRITE(BLC_PWM_CTL, dev_priv->regfile.saveBLC_PWM_CTL);
I915_WRITE(BLC_HIST_CTL, dev_priv->regfile.saveBLC_HIST_CTL);
I915_WRITE(PP_ON_DELAYS, dev_priv->regfile.savePP_ON_DELAYS);
I915_WRITE(PP_OFF_DELAYS, dev_priv->regfile.savePP_OFF_DELAYS);
@@ -312,22 +288,12 @@ static void i915_restore_display(struct drm_device *dev)
I915_WRITE(PP_CONTROL, dev_priv->regfile.savePP_CONTROL);
}
- spin_unlock_irqrestore(&dev_priv->backlight.lock, flags);
-
/* only restore FBC info on the platform that supports FBC*/
intel_disable_fbc(dev);
- if (I915_HAS_FBC(dev)) {
- if (HAS_PCH_SPLIT(dev)) {
- I915_WRITE(ILK_DPFC_CB_BASE, dev_priv->regfile.saveDPFC_CB_BASE);
- } else if (IS_GM45(dev)) {
- I915_WRITE(DPFC_CB_BASE, dev_priv->regfile.saveDPFC_CB_BASE);
- } else {
- I915_WRITE(FBC_CFB_BASE, dev_priv->regfile.saveFBC_CFB_BASE);
- I915_WRITE(FBC_LL_BASE, dev_priv->regfile.saveFBC_LL_BASE);
- I915_WRITE(FBC_CONTROL2, dev_priv->regfile.saveFBC_CONTROL2);
- I915_WRITE(FBC_CONTROL, dev_priv->regfile.saveFBC_CONTROL);
- }
- }
+
+ /* restore FBC interval */
+ if (HAS_FBC(dev) && INTEL_INFO(dev)->gen <= 4 && !IS_G4X(dev))
+ I915_WRITE(FBC_CONTROL, dev_priv->regfile.saveFBC_CONTROL);
if (!drm_core_check_feature(dev, DRIVER_MODESET))
i915_restore_vga(dev);
@@ -340,8 +306,6 @@ int i915_save_state(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
int i;
- pci_read_config_byte(dev->pdev, LBB, &dev_priv->regfile.saveLBB);
-
mutex_lock(&dev->struct_mutex);
i915_save_display(dev);
@@ -364,10 +328,9 @@ int i915_save_state(struct drm_device *dev)
}
}
- intel_disable_gt_powersave(dev);
-
/* Cache mode state */
- dev_priv->regfile.saveCACHE_MODE_0 = I915_READ(CACHE_MODE_0);
+ 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);
@@ -390,8 +353,6 @@ int i915_restore_state(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
int i;
- pci_write_config_byte(dev->pdev, LBB, dev_priv->regfile.saveLBB);
-
mutex_lock(&dev->struct_mutex);
i915_gem_restore_fences(dev);
@@ -414,7 +375,9 @@ int i915_restore_state(struct drm_device *dev)
}
/* Cache mode state */
- I915_WRITE(CACHE_MODE_0, dev_priv->regfile.saveCACHE_MODE_0 | 0xffff0000);
+ 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);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-03 17:59:51 +0000