* present for a given platform.
*/
-#define GEN9_ENABLE_DC5(dev) 0
-#define SKL_ENABLE_DC6(dev) IS_SKYLAKE(dev)
-
#define for_each_power_well(i, power_well, domain_mask, power_domains) \
for (i = 0; \
i < (power_domains)->power_well_count && \
gen8_irq_power_well_post_enable(dev_priv,
1 << PIPE_C | 1 << PIPE_B);
}
-
- if (power_well->data == SKL_DISP_PW_1) {
- if (!dev_priv->power_domains.initializing)
- intel_prepare_ddi(dev);
- gen8_irq_power_well_post_enable(dev_priv, 1 << PIPE_A);
- }
}
static void hsw_set_power_well(struct drm_i915_private *dev_priv,
BIT(POWER_DOMAIN_TRANSCODER_C) | \
BIT(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
BIT(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
- BIT(POWER_DOMAIN_PORT_DDI_B_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_B_4_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_C_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_C_4_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_D_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_D_4_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_E_2_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_B_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_C_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_D_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_E_LANES) | \
BIT(POWER_DOMAIN_AUX_B) | \
BIT(POWER_DOMAIN_AUX_C) | \
BIT(POWER_DOMAIN_AUX_D) | \
BIT(POWER_DOMAIN_AUDIO) | \
BIT(POWER_DOMAIN_VGA) | \
BIT(POWER_DOMAIN_INIT))
-#define SKL_DISPLAY_POWERWELL_1_POWER_DOMAINS ( \
- SKL_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
- BIT(POWER_DOMAIN_PLLS) | \
- BIT(POWER_DOMAIN_PIPE_A) | \
- BIT(POWER_DOMAIN_TRANSCODER_EDP) | \
- BIT(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \
- BIT(POWER_DOMAIN_PORT_DDI_A_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_A_4_LANES) | \
- BIT(POWER_DOMAIN_AUX_A) | \
- BIT(POWER_DOMAIN_INIT))
#define SKL_DISPLAY_DDI_A_E_POWER_DOMAINS ( \
- BIT(POWER_DOMAIN_PORT_DDI_A_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_A_4_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_E_2_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_A_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_E_LANES) | \
BIT(POWER_DOMAIN_INIT))
#define SKL_DISPLAY_DDI_B_POWER_DOMAINS ( \
- BIT(POWER_DOMAIN_PORT_DDI_B_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_B_4_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_B_LANES) | \
BIT(POWER_DOMAIN_INIT))
#define SKL_DISPLAY_DDI_C_POWER_DOMAINS ( \
- BIT(POWER_DOMAIN_PORT_DDI_C_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_C_4_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_C_LANES) | \
BIT(POWER_DOMAIN_INIT))
#define SKL_DISPLAY_DDI_D_POWER_DOMAINS ( \
- BIT(POWER_DOMAIN_PORT_DDI_D_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_D_4_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_D_LANES) | \
BIT(POWER_DOMAIN_INIT))
-#define SKL_DISPLAY_MISC_IO_POWER_DOMAINS ( \
- SKL_DISPLAY_POWERWELL_1_POWER_DOMAINS | \
- BIT(POWER_DOMAIN_PLLS) | \
+#define SKL_DISPLAY_DC_OFF_POWER_DOMAINS ( \
+ SKL_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
+ BIT(POWER_DOMAIN_MODESET) | \
+ BIT(POWER_DOMAIN_AUX_A) | \
BIT(POWER_DOMAIN_INIT))
#define SKL_DISPLAY_ALWAYS_ON_POWER_DOMAINS ( \
- (POWER_DOMAIN_MASK & ~(SKL_DISPLAY_POWERWELL_1_POWER_DOMAINS | \
+ (POWER_DOMAIN_MASK & ~( \
SKL_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
- SKL_DISPLAY_DDI_A_E_POWER_DOMAINS | \
- SKL_DISPLAY_DDI_B_POWER_DOMAINS | \
- SKL_DISPLAY_DDI_C_POWER_DOMAINS | \
- SKL_DISPLAY_DDI_D_POWER_DOMAINS | \
- SKL_DISPLAY_MISC_IO_POWER_DOMAINS)) | \
+ SKL_DISPLAY_DC_OFF_POWER_DOMAINS)) | \
BIT(POWER_DOMAIN_INIT))
#define BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \
BIT(POWER_DOMAIN_TRANSCODER_C) | \
BIT(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
BIT(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
- BIT(POWER_DOMAIN_PORT_DDI_B_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_B_4_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_C_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_C_4_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_B_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_C_LANES) | \
BIT(POWER_DOMAIN_AUX_B) | \
BIT(POWER_DOMAIN_AUX_C) | \
BIT(POWER_DOMAIN_AUDIO) | \
BIT(POWER_DOMAIN_VGA) | \
+ BIT(POWER_DOMAIN_GMBUS) | \
BIT(POWER_DOMAIN_INIT))
#define BXT_DISPLAY_POWERWELL_1_POWER_DOMAINS ( \
BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
BIT(POWER_DOMAIN_PIPE_A) | \
BIT(POWER_DOMAIN_TRANSCODER_EDP) | \
BIT(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \
- BIT(POWER_DOMAIN_PORT_DDI_A_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_A_4_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_A_LANES) | \
BIT(POWER_DOMAIN_AUX_A) | \
BIT(POWER_DOMAIN_PLLS) | \
BIT(POWER_DOMAIN_INIT))
+#define BXT_DISPLAY_DC_OFF_POWER_DOMAINS ( \
+ BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
+ BIT(POWER_DOMAIN_MODESET) | \
+ BIT(POWER_DOMAIN_AUX_A) | \
+ BIT(POWER_DOMAIN_INIT))
#define BXT_DISPLAY_ALWAYS_ON_POWER_DOMAINS ( \
(POWER_DOMAIN_MASK & ~(BXT_DISPLAY_POWERWELL_1_POWER_DOMAINS | \
BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS)) | \
*/
}
-void bxt_enable_dc9(struct drm_i915_private *dev_priv)
+static void gen9_set_dc_state_debugmask_memory_up(
+ struct drm_i915_private *dev_priv)
{
uint32_t val;
- assert_can_enable_dc9(dev_priv);
+ /* The below bit doesn't need to be cleared ever afterwards */
+ val = I915_READ(DC_STATE_DEBUG);
+ if (!(val & DC_STATE_DEBUG_MASK_MEMORY_UP)) {
+ val |= DC_STATE_DEBUG_MASK_MEMORY_UP;
+ I915_WRITE(DC_STATE_DEBUG, val);
+ POSTING_READ(DC_STATE_DEBUG);
+ }
+}
- DRM_DEBUG_KMS("Enabling DC9\n");
+static void gen9_set_dc_state(struct drm_i915_private *dev_priv, uint32_t state)
+{
+ uint32_t val;
+ uint32_t mask;
+
+ mask = DC_STATE_EN_UPTO_DC5;
+ if (IS_BROXTON(dev_priv))
+ mask |= DC_STATE_EN_DC9;
+ else
+ mask |= DC_STATE_EN_UPTO_DC6;
+
+ WARN_ON_ONCE(state & ~mask);
+
+ if (i915.enable_dc == 0)
+ state = DC_STATE_DISABLE;
+ else if (i915.enable_dc == 1 && state > DC_STATE_EN_UPTO_DC5)
+ state = DC_STATE_EN_UPTO_DC5;
+
+ if (state & DC_STATE_EN_UPTO_DC5_DC6_MASK)
+ gen9_set_dc_state_debugmask_memory_up(dev_priv);
val = I915_READ(DC_STATE_EN);
- val |= DC_STATE_EN_DC9;
+ DRM_DEBUG_KMS("Setting DC state from %02x to %02x\n",
+ val & mask, state);
+ val &= ~mask;
+ val |= state;
I915_WRITE(DC_STATE_EN, val);
POSTING_READ(DC_STATE_EN);
}
-void bxt_disable_dc9(struct drm_i915_private *dev_priv)
+void bxt_enable_dc9(struct drm_i915_private *dev_priv)
{
- uint32_t val;
+ assert_can_enable_dc9(dev_priv);
+
+ DRM_DEBUG_KMS("Enabling DC9\n");
+
+ gen9_set_dc_state(dev_priv, DC_STATE_EN_DC9);
+}
+void bxt_disable_dc9(struct drm_i915_private *dev_priv)
+{
assert_can_disable_dc9(dev_priv);
DRM_DEBUG_KMS("Disabling DC9\n");
- val = I915_READ(DC_STATE_EN);
- val &= ~DC_STATE_EN_DC9;
- I915_WRITE(DC_STATE_EN, val);
- POSTING_READ(DC_STATE_EN);
+ gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
}
-static void gen9_set_dc_state_debugmask_memory_up(
- struct drm_i915_private *dev_priv)
+static void assert_csr_loaded(struct drm_i915_private *dev_priv)
{
- uint32_t val;
-
- /* The below bit doesn't need to be cleared ever afterwards */
- val = I915_READ(DC_STATE_DEBUG);
- if (!(val & DC_STATE_DEBUG_MASK_MEMORY_UP)) {
- val |= DC_STATE_DEBUG_MASK_MEMORY_UP;
- I915_WRITE(DC_STATE_DEBUG, val);
- POSTING_READ(DC_STATE_DEBUG);
- }
+ WARN_ONCE(!I915_READ(CSR_PROGRAM(0)),
+ "CSR program storage start is NULL\n");
+ WARN_ONCE(!I915_READ(CSR_SSP_BASE), "CSR SSP Base Not fine\n");
+ WARN_ONCE(!I915_READ(CSR_HTP_SKL), "CSR HTP Not fine\n");
}
static void assert_can_enable_dc5(struct drm_i915_private *dev_priv)
static void assert_can_disable_dc5(struct drm_i915_private *dev_priv)
{
- bool pg2_enabled = intel_display_power_well_is_enabled(dev_priv,
- SKL_DISP_PW_2);
/*
* During initialization, the firmware may not be loaded yet.
* We still want to make sure that the DC enabling flag is cleared.
if (dev_priv->power_domains.initializing)
return;
- WARN_ONCE(!pg2_enabled, "PG2 not enabled to disable DC5.\n");
WARN_ONCE(dev_priv->pm.suspended,
"Disabling of DC5 while platform is runtime-suspended should never happen.\n");
}
static void gen9_enable_dc5(struct drm_i915_private *dev_priv)
{
- uint32_t val;
-
assert_can_enable_dc5(dev_priv);
DRM_DEBUG_KMS("Enabling DC5\n");
- gen9_set_dc_state_debugmask_memory_up(dev_priv);
-
- val = I915_READ(DC_STATE_EN);
- val &= ~DC_STATE_EN_UPTO_DC5_DC6_MASK;
- val |= DC_STATE_EN_UPTO_DC5;
- I915_WRITE(DC_STATE_EN, val);
- POSTING_READ(DC_STATE_EN);
-}
-
-static void gen9_disable_dc5(struct drm_i915_private *dev_priv)
-{
- uint32_t val;
-
- assert_can_disable_dc5(dev_priv);
-
- DRM_DEBUG_KMS("Disabling DC5\n");
-
- val = I915_READ(DC_STATE_EN);
- val &= ~DC_STATE_EN_UPTO_DC5;
- I915_WRITE(DC_STATE_EN, val);
- POSTING_READ(DC_STATE_EN);
+ gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC5);
}
static void assert_can_enable_dc6(struct drm_i915_private *dev_priv)
if (dev_priv->power_domains.initializing)
return;
- assert_csr_loaded(dev_priv);
WARN_ONCE(!(I915_READ(DC_STATE_EN) & DC_STATE_EN_UPTO_DC6),
"DC6 already programmed to be disabled.\n");
}
-static void skl_enable_dc6(struct drm_i915_private *dev_priv)
+static void gen9_disable_dc5_dc6(struct drm_i915_private *dev_priv)
{
- uint32_t val;
+ assert_can_disable_dc5(dev_priv);
+ if (IS_SKYLAKE(dev_priv) && i915.enable_dc != 0 && i915.enable_dc != 1)
+ assert_can_disable_dc6(dev_priv);
+
+ gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
+}
+
+void skl_enable_dc6(struct drm_i915_private *dev_priv)
+{
assert_can_enable_dc6(dev_priv);
DRM_DEBUG_KMS("Enabling DC6\n");
- gen9_set_dc_state_debugmask_memory_up(dev_priv);
+ gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC6);
- val = I915_READ(DC_STATE_EN);
- val &= ~DC_STATE_EN_UPTO_DC5_DC6_MASK;
- val |= DC_STATE_EN_UPTO_DC6;
- I915_WRITE(DC_STATE_EN, val);
- POSTING_READ(DC_STATE_EN);
}
-static void skl_disable_dc6(struct drm_i915_private *dev_priv)
+void skl_disable_dc6(struct drm_i915_private *dev_priv)
{
- uint32_t val;
-
assert_can_disable_dc6(dev_priv);
DRM_DEBUG_KMS("Disabling DC6\n");
- val = I915_READ(DC_STATE_EN);
- val &= ~DC_STATE_EN_UPTO_DC6;
- I915_WRITE(DC_STATE_EN, val);
- POSTING_READ(DC_STATE_EN);
+ gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
}
static void skl_set_power_well(struct drm_i915_private *dev_priv,
!I915_READ(HSW_PWR_WELL_BIOS),
"Invalid for power well status to be enabled, unless done by the BIOS, \
when request is to disable!\n");
- if ((GEN9_ENABLE_DC5(dev) || SKL_ENABLE_DC6(dev)) &&
- power_well->data == SKL_DISP_PW_2) {
- if (SKL_ENABLE_DC6(dev)) {
- skl_disable_dc6(dev_priv);
- /*
- * DDI buffer programming unnecessary during driver-load/resume
- * as it's already done during modeset initialization then.
- * It's also invalid here as encoder list is still uninitialized.
- */
- if (!dev_priv->power_domains.initializing)
- intel_prepare_ddi(dev);
- } else {
- gen9_disable_dc5(dev_priv);
- }
+ if (power_well->data == SKL_DISP_PW_2) {
+ /*
+ * DDI buffer programming unnecessary during
+ * driver-load/resume as it's already done
+ * during modeset initialization then. It's
+ * also invalid here as encoder list is still
+ * uninitialized.
+ */
+ if (!dev_priv->power_domains.initializing)
+ intel_prepare_ddi(dev);
}
I915_WRITE(HSW_PWR_WELL_DRIVER, tmp | req_mask);
}
}
} else {
if (enable_requested) {
- if (IS_SKYLAKE(dev) &&
- (power_well->data == SKL_DISP_PW_1) &&
- (intel_csr_load_status_get(dev_priv) == FW_LOADED))
- DRM_DEBUG_KMS("Not Disabling PW1, dmc will handle\n");
- else {
- I915_WRITE(HSW_PWR_WELL_DRIVER, tmp & ~req_mask);
- POSTING_READ(HSW_PWR_WELL_DRIVER);
- DRM_DEBUG_KMS("Disabling %s\n", power_well->name);
- }
-
- if ((GEN9_ENABLE_DC5(dev) || SKL_ENABLE_DC6(dev)) &&
- power_well->data == SKL_DISP_PW_2) {
- enum csr_state state;
- /* TODO: wait for a completion event or
- * similar here instead of busy
- * waiting using wait_for function.
- */
- wait_for((state = intel_csr_load_status_get(dev_priv)) !=
- FW_UNINITIALIZED, 1000);
- if (state != FW_LOADED)
- DRM_DEBUG("CSR firmware not ready (%d)\n",
- state);
- else
- if (SKL_ENABLE_DC6(dev))
- skl_enable_dc6(dev_priv);
- else
- gen9_enable_dc5(dev_priv);
- }
+ I915_WRITE(HSW_PWR_WELL_DRIVER, tmp & ~req_mask);
+ POSTING_READ(HSW_PWR_WELL_DRIVER);
+ DRM_DEBUG_KMS("Disabling %s\n", power_well->name);
}
}
skl_set_power_well(dev_priv, power_well, false);
}
+static bool gen9_dc_off_power_well_enabled(struct drm_i915_private *dev_priv,
+ struct i915_power_well *power_well)
+{
+ return (I915_READ(DC_STATE_EN) & DC_STATE_EN_UPTO_DC5_DC6_MASK) == 0;
+}
+
+static void gen9_dc_off_power_well_enable(struct drm_i915_private *dev_priv,
+ struct i915_power_well *power_well)
+{
+ gen9_disable_dc5_dc6(dev_priv);
+}
+
+static void gen9_dc_off_power_well_disable(struct drm_i915_private *dev_priv,
+ struct i915_power_well *power_well)
+{
+ if (IS_SKYLAKE(dev_priv) && i915.enable_dc != 0 && i915.enable_dc != 1)
+ skl_enable_dc6(dev_priv);
+ else
+ gen9_enable_dc5(dev_priv);
+}
+
+static void gen9_dc_off_power_well_sync_hw(struct drm_i915_private *dev_priv,
+ struct i915_power_well *power_well)
+{
+ if (power_well->count > 0) {
+ gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
+ } else {
+ if (IS_SKYLAKE(dev_priv) && i915.enable_dc != 0 &&
+ i915.enable_dc != 1)
+ gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC6);
+ else
+ gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC5);
+ }
+}
+
static void i9xx_always_on_power_well_noop(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well)
{
int power_well_id)
{
struct i915_power_domains *power_domains = &dev_priv->power_domains;
- struct i915_power_well *power_well;
int i;
- for_each_power_well(i, power_well, POWER_DOMAIN_MASK, power_domains) {
+ for (i = 0; i < power_domains->power_well_count; i++) {
+ struct i915_power_well *power_well;
+
+ power_well = &power_domains->power_wells[i];
if (power_well->data == power_well_id)
return power_well;
}
for_each_power_well_rev(i, power_well, BIT(domain), power_domains) {
WARN_ON(!power_well->count);
- if (!--power_well->count && i915.disable_power_well)
+ if (!--power_well->count)
intel_power_well_disable(dev_priv, power_well);
}
#define HSW_ALWAYS_ON_POWER_DOMAINS ( \
BIT(POWER_DOMAIN_PIPE_A) | \
BIT(POWER_DOMAIN_TRANSCODER_EDP) | \
- BIT(POWER_DOMAIN_PORT_DDI_A_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_A_4_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_B_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_B_4_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_C_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_C_4_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_D_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_D_4_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_A_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_B_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_C_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_D_LANES) | \
BIT(POWER_DOMAIN_PORT_CRT) | \
BIT(POWER_DOMAIN_PLLS) | \
BIT(POWER_DOMAIN_AUX_A) | \
BIT(POWER_DOMAIN_AUX_B) | \
BIT(POWER_DOMAIN_AUX_C) | \
BIT(POWER_DOMAIN_AUX_D) | \
+ BIT(POWER_DOMAIN_GMBUS) | \
BIT(POWER_DOMAIN_INIT))
#define HSW_DISPLAY_POWER_DOMAINS ( \
(POWER_DOMAIN_MASK & ~HSW_ALWAYS_ON_POWER_DOMAINS) | \
#define VLV_DISPLAY_POWER_DOMAINS POWER_DOMAIN_MASK
#define VLV_DPIO_CMN_BC_POWER_DOMAINS ( \
- BIT(POWER_DOMAIN_PORT_DDI_B_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_B_4_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_C_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_C_4_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_B_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_C_LANES) | \
BIT(POWER_DOMAIN_PORT_CRT) | \
BIT(POWER_DOMAIN_AUX_B) | \
BIT(POWER_DOMAIN_AUX_C) | \
BIT(POWER_DOMAIN_INIT))
#define VLV_DPIO_TX_B_LANES_01_POWER_DOMAINS ( \
- BIT(POWER_DOMAIN_PORT_DDI_B_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_B_4_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_B_LANES) | \
BIT(POWER_DOMAIN_AUX_B) | \
BIT(POWER_DOMAIN_INIT))
#define VLV_DPIO_TX_B_LANES_23_POWER_DOMAINS ( \
- BIT(POWER_DOMAIN_PORT_DDI_B_4_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_B_LANES) | \
BIT(POWER_DOMAIN_AUX_B) | \
BIT(POWER_DOMAIN_INIT))
#define VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS ( \
- BIT(POWER_DOMAIN_PORT_DDI_C_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_C_4_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_C_LANES) | \
BIT(POWER_DOMAIN_AUX_C) | \
BIT(POWER_DOMAIN_INIT))
#define VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS ( \
- BIT(POWER_DOMAIN_PORT_DDI_C_4_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_C_LANES) | \
BIT(POWER_DOMAIN_AUX_C) | \
BIT(POWER_DOMAIN_INIT))
#define CHV_DPIO_CMN_BC_POWER_DOMAINS ( \
- BIT(POWER_DOMAIN_PORT_DDI_B_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_B_4_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_C_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_C_4_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_B_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_C_LANES) | \
BIT(POWER_DOMAIN_AUX_B) | \
BIT(POWER_DOMAIN_AUX_C) | \
BIT(POWER_DOMAIN_INIT))
#define CHV_DPIO_CMN_D_POWER_DOMAINS ( \
- BIT(POWER_DOMAIN_PORT_DDI_D_2_LANES) | \
- BIT(POWER_DOMAIN_PORT_DDI_D_4_LANES) | \
+ BIT(POWER_DOMAIN_PORT_DDI_D_LANES) | \
BIT(POWER_DOMAIN_AUX_D) | \
BIT(POWER_DOMAIN_INIT))
.is_enabled = skl_power_well_enabled,
};
+static const struct i915_power_well_ops gen9_dc_off_power_well_ops = {
+ .sync_hw = gen9_dc_off_power_well_sync_hw,
+ .enable = gen9_dc_off_power_well_enable,
+ .disable = gen9_dc_off_power_well_disable,
+ .is_enabled = gen9_dc_off_power_well_enabled,
+};
+
static struct i915_power_well hsw_power_wells[] = {
{
.name = "always-on",
.always_on = 1,
.domains = VLV_ALWAYS_ON_POWER_DOMAINS,
.ops = &i9xx_always_on_power_well_ops,
+ .data = PUNIT_POWER_WELL_ALWAYS_ON,
},
{
.name = "display",
.always_on = 1,
.domains = SKL_DISPLAY_ALWAYS_ON_POWER_DOMAINS,
.ops = &i9xx_always_on_power_well_ops,
+ .data = SKL_DISP_PW_ALWAYS_ON,
},
{
.name = "power well 1",
- .domains = SKL_DISPLAY_POWERWELL_1_POWER_DOMAINS,
+ /* Handled by the DMC firmware */
+ .domains = 0,
.ops = &skl_power_well_ops,
.data = SKL_DISP_PW_1,
},
{
.name = "MISC IO power well",
- .domains = SKL_DISPLAY_MISC_IO_POWER_DOMAINS,
+ /* Handled by the DMC firmware */
+ .domains = 0,
.ops = &skl_power_well_ops,
.data = SKL_DISP_PW_MISC_IO,
},
{
+ .name = "DC off",
+ .domains = SKL_DISPLAY_DC_OFF_POWER_DOMAINS,
+ .ops = &gen9_dc_off_power_well_ops,
+ .data = SKL_DISP_PW_DC_OFF,
+ },
+ {
.name = "power well 2",
.domains = SKL_DISPLAY_POWERWELL_2_POWER_DOMAINS,
.ops = &skl_power_well_ops,
},
};
+void skl_pw1_misc_io_init(struct drm_i915_private *dev_priv)
+{
+ struct i915_power_well *well;
+
+ if (!IS_SKYLAKE(dev_priv))
+ return;
+
+ well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
+ intel_power_well_enable(dev_priv, well);
+
+ well = lookup_power_well(dev_priv, SKL_DISP_PW_MISC_IO);
+ intel_power_well_enable(dev_priv, well);
+}
+
+void skl_pw1_misc_io_fini(struct drm_i915_private *dev_priv)
+{
+ struct i915_power_well *well;
+
+ if (!IS_SKYLAKE(dev_priv))
+ return;
+
+ well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
+ intel_power_well_disable(dev_priv, well);
+
+ well = lookup_power_well(dev_priv, SKL_DISP_PW_MISC_IO);
+ intel_power_well_disable(dev_priv, well);
+}
+
static struct i915_power_well bxt_power_wells[] = {
{
.name = "always-on",
.data = SKL_DISP_PW_1,
},
{
+ .name = "DC off",
+ .domains = BXT_DISPLAY_DC_OFF_POWER_DOMAINS,
+ .ops = &gen9_dc_off_power_well_ops,
+ .data = SKL_DISP_PW_DC_OFF,
+ },
+ {
.name = "power well 2",
.domains = BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS,
.ops = &skl_power_well_ops,
.data = SKL_DISP_PW_2,
- }
+ },
};
static int
i915.disable_power_well = sanitize_disable_power_well_option(dev_priv,
i915.disable_power_well);
+ BUILD_BUG_ON(POWER_DOMAIN_NUM > 31);
+
mutex_init(&power_domains->lock);
/*
set_power_wells(power_domains, hsw_power_wells);
} else if (IS_BROADWELL(dev_priv->dev)) {
set_power_wells(power_domains, bdw_power_wells);
- } else if (IS_SKYLAKE(dev_priv->dev)) {
+ } else if (IS_SKYLAKE(dev_priv->dev) || IS_KABYLAKE(dev_priv->dev)) {
set_power_wells(power_domains, skl_power_wells);
} else if (IS_BROXTON(dev_priv->dev)) {
set_power_wells(power_domains, bxt_power_wells);
return 0;
}
-static void intel_runtime_pm_disable(struct drm_i915_private *dev_priv)
-{
- struct drm_device *dev = dev_priv->dev;
- struct device *device = &dev->pdev->dev;
-
- if (!HAS_RUNTIME_PM(dev))
- return;
-
- if (!intel_enable_rc6(dev))
- return;
-
- /* Make sure we're not suspended first. */
- pm_runtime_get_sync(device);
-}
-
/**
* intel_power_domains_fini - finalizes the power domain structures
* @dev_priv: i915 device instance
*/
void intel_power_domains_fini(struct drm_i915_private *dev_priv)
{
- intel_runtime_pm_disable(dev_priv);
-
/* The i915.ko module is still not prepared to be loaded when
* the power well is not enabled, so just enable it in case
* we're going to unload/reload. */
intel_display_set_init_power(dev_priv, true);
+
+ /* Remove the refcount we took to keep power well support disabled. */
+ if (!i915.disable_power_well)
+ intel_display_power_put(dev_priv, POWER_DOMAIN_INIT);
}
-static void intel_power_domains_resume(struct drm_i915_private *dev_priv)
+static void intel_power_domains_sync_hw(struct drm_i915_private *dev_priv)
{
struct i915_power_domains *power_domains = &dev_priv->power_domains;
struct i915_power_well *power_well;
mutex_unlock(&power_domains->lock);
}
+static void skl_display_core_init(struct drm_i915_private *dev_priv,
+ bool resume)
+{
+ struct i915_power_domains *power_domains = &dev_priv->power_domains;
+ uint32_t val;
+
+ gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
+
+ /* enable PCH reset handshake */
+ val = I915_READ(HSW_NDE_RSTWRN_OPT);
+ I915_WRITE(HSW_NDE_RSTWRN_OPT, val | RESET_PCH_HANDSHAKE_ENABLE);
+
+ /* enable PG1 and Misc I/O */
+ mutex_lock(&power_domains->lock);
+ skl_pw1_misc_io_init(dev_priv);
+ mutex_unlock(&power_domains->lock);
+
+ if (!resume)
+ return;
+
+ skl_init_cdclk(dev_priv);
+
+ if (dev_priv->csr.dmc_payload)
+ intel_csr_load_program(dev_priv);
+}
+
+static void skl_display_core_uninit(struct drm_i915_private *dev_priv)
+{
+ struct i915_power_domains *power_domains = &dev_priv->power_domains;
+
+ gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
+
+ skl_uninit_cdclk(dev_priv);
+
+ /* The spec doesn't call for removing the reset handshake flag */
+ /* disable PG1 and Misc I/O */
+ mutex_lock(&power_domains->lock);
+ skl_pw1_misc_io_fini(dev_priv);
+ mutex_unlock(&power_domains->lock);
+}
+
static void chv_phy_control_init(struct drm_i915_private *dev_priv)
{
struct i915_power_well *cmn_bc =
* This function initializes the hardware power domain state and enables all
* power domains using intel_display_set_init_power().
*/
-void intel_power_domains_init_hw(struct drm_i915_private *dev_priv)
+void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume)
{
struct drm_device *dev = dev_priv->dev;
struct i915_power_domains *power_domains = &dev_priv->power_domains;
power_domains->initializing = true;
- if (IS_CHERRYVIEW(dev)) {
+ if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) {
+ skl_display_core_init(dev_priv, resume);
+ } else if (IS_CHERRYVIEW(dev)) {
mutex_lock(&power_domains->lock);
chv_phy_control_init(dev_priv);
mutex_unlock(&power_domains->lock);
/* For now, we need the power well to be always enabled. */
intel_display_set_init_power(dev_priv, true);
- intel_power_domains_resume(dev_priv);
+ /* Disable power support if the user asked so. */
+ if (!i915.disable_power_well)
+ intel_display_power_get(dev_priv, POWER_DOMAIN_INIT);
+ intel_power_domains_sync_hw(dev_priv);
power_domains->initializing = false;
}
/**
- * intel_aux_display_runtime_get - grab an auxiliary power domain reference
+ * intel_power_domains_suspend - suspend power domain state
* @dev_priv: i915 device instance
*
- * This function grabs a power domain reference for the auxiliary power domain
- * (for access to the GMBUS and DP AUX blocks) and ensures that it and all its
- * parents are powered up. Therefore users should only grab a reference to the
- * innermost power domain they need.
- *
- * Any power domain reference obtained by this function must have a symmetric
- * call to intel_aux_display_runtime_put() to release the reference again.
+ * This function prepares the hardware power domain state before entering
+ * system suspend. It must be paired with intel_power_domains_init_hw().
*/
-void intel_aux_display_runtime_get(struct drm_i915_private *dev_priv)
+void intel_power_domains_suspend(struct drm_i915_private *dev_priv)
{
- intel_runtime_pm_get(dev_priv);
-}
+ if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv))
+ skl_display_core_uninit(dev_priv);
-/**
- * intel_aux_display_runtime_put - release an auxiliary power domain reference
- * @dev_priv: i915 device instance
- *
- * This function drops the auxiliary power domain reference obtained by
- * intel_aux_display_runtime_get() and might power down the corresponding
- * hardware block right away if this is the last reference.
- */
-void intel_aux_display_runtime_put(struct drm_i915_private *dev_priv)
-{
- intel_runtime_pm_put(dev_priv);
+ /*
+ * Even if power well support was disabled we still want to disable
+ * power wells while we are system suspended.
+ */
+ if (!i915.disable_power_well)
+ intel_display_power_put(dev_priv, POWER_DOMAIN_INIT);
}
/**
projects / platform / kernel / linux-rpi.git / blobdiff