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path: root/drivers/gpu/drm/i915/intel_runtime_pm.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_runtime_pm.c')
-rw-r--r--drivers/gpu/drm/i915/intel_runtime_pm.c342
1 files changed, 162 insertions, 180 deletions
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index 44e4491a4918..1c2de9b69a19 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -208,7 +208,7 @@ bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
is_enabled = true;
- for_each_power_domain_well_rev(dev_priv, power_well, BIT_ULL(domain)) {
+ for_each_power_domain_well_reverse(dev_priv, power_well, BIT_ULL(domain)) {
if (power_well->desc->always_on)
continue;
@@ -436,6 +436,15 @@ icl_combo_phy_aux_power_well_enable(struct drm_i915_private *dev_priv,
I915_WRITE(ICL_PORT_CL_DW12(port), val | ICL_LANE_ENABLE_AUX);
hsw_wait_for_power_well_enable(dev_priv, power_well);
+
+ /* Display WA #1178: icl */
+ if (IS_ICELAKE(dev_priv) &&
+ pw_idx >= ICL_PW_CTL_IDX_AUX_A && pw_idx <= ICL_PW_CTL_IDX_AUX_B &&
+ !intel_bios_is_port_edp(dev_priv, port)) {
+ val = I915_READ(ICL_AUX_ANAOVRD1(pw_idx));
+ val |= ICL_AUX_ANAOVRD1_ENABLE | ICL_AUX_ANAOVRD1_LDO_BYPASS;
+ I915_WRITE(ICL_AUX_ANAOVRD1(pw_idx), val);
+ }
}
static void
@@ -456,6 +465,25 @@ icl_combo_phy_aux_power_well_disable(struct drm_i915_private *dev_priv,
hsw_wait_for_power_well_disable(dev_priv, power_well);
}
+#define ICL_AUX_PW_TO_CH(pw_idx) \
+ ((pw_idx) - ICL_PW_CTL_IDX_AUX_A + AUX_CH_A)
+
+static void
+icl_tc_phy_aux_power_well_enable(struct drm_i915_private *dev_priv,
+ struct i915_power_well *power_well)
+{
+ enum aux_ch aux_ch = ICL_AUX_PW_TO_CH(power_well->desc->hsw.idx);
+ u32 val;
+
+ val = I915_READ(DP_AUX_CH_CTL(aux_ch));
+ val &= ~DP_AUX_CH_CTL_TBT_IO;
+ if (power_well->desc->hsw.is_tc_tbt)
+ val |= DP_AUX_CH_CTL_TBT_IO;
+ I915_WRITE(DP_AUX_CH_CTL(aux_ch), val);
+
+ hsw_power_well_enable(dev_priv, power_well);
+}
+
/*
* We should only use the power well if we explicitly asked the hardware to
* enable it, so check if it's enabled and also check if we've requested it to
@@ -465,11 +493,25 @@ static bool hsw_power_well_enabled(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well)
{
const struct i915_power_well_regs *regs = power_well->desc->hsw.regs;
+ enum i915_power_well_id id = power_well->desc->id;
int pw_idx = power_well->desc->hsw.idx;
u32 mask = HSW_PWR_WELL_CTL_REQ(pw_idx) |
HSW_PWR_WELL_CTL_STATE(pw_idx);
+ u32 val;
+
+ val = I915_READ(regs->driver);
- return (I915_READ(regs->driver) & mask) == mask;
+ /*
+ * On GEN9 big core due to a DMC bug the driver's request bits for PW1
+ * and the MISC_IO PW will be not restored, so check instead for the
+ * BIOS's own request bits, which are forced-on for these power wells
+ * when exiting DC5/6.
+ */
+ if (IS_GEN9(dev_priv) && !IS_GEN9_LP(dev_priv) &&
+ (id == SKL_DISP_PW_1 || id == SKL_DISP_PW_MISC_IO))
+ val |= I915_READ(regs->bios);
+
+ return (val & mask) == mask;
}
static void assert_can_enable_dc9(struct drm_i915_private *dev_priv)
@@ -551,7 +593,9 @@ static u32 gen9_dc_mask(struct drm_i915_private *dev_priv)
u32 mask;
mask = DC_STATE_EN_UPTO_DC5;
- if (IS_GEN9_LP(dev_priv))
+ if (INTEL_GEN(dev_priv) >= 11)
+ mask |= DC_STATE_EN_UPTO_DC6 | DC_STATE_EN_DC9;
+ else if (IS_GEN9_LP(dev_priv))
mask |= DC_STATE_EN_DC9;
else
mask |= DC_STATE_EN_UPTO_DC6;
@@ -624,8 +668,13 @@ void bxt_enable_dc9(struct drm_i915_private *dev_priv)
assert_can_enable_dc9(dev_priv);
DRM_DEBUG_KMS("Enabling DC9\n");
-
- intel_power_sequencer_reset(dev_priv);
+ /*
+ * Power sequencer reset is not needed on
+ * platforms with South Display Engine on PCH,
+ * because PPS registers are always on.
+ */
+ if (!HAS_PCH_SPLIT(dev_priv))
+ intel_power_sequencer_reset(dev_priv);
gen9_set_dc_state(dev_priv, DC_STATE_EN_DC9);
}
@@ -707,7 +756,7 @@ static void assert_can_enable_dc6(struct drm_i915_private *dev_priv)
assert_csr_loaded(dev_priv);
}
-static void skl_enable_dc6(struct drm_i915_private *dev_priv)
+void skl_enable_dc6(struct drm_i915_private *dev_priv)
{
assert_can_enable_dc6(dev_priv);
@@ -808,6 +857,14 @@ static void gen9_dc_off_power_well_enable(struct drm_i915_private *dev_priv,
if (IS_GEN9_LP(dev_priv))
bxt_verify_ddi_phy_power_wells(dev_priv);
+
+ if (INTEL_GEN(dev_priv) >= 11)
+ /*
+ * DMC retains HW context only for port A, the other combo
+ * PHY's HW context for port B is lost after DC transitions,
+ * so we need to restore it manually.
+ */
+ icl_combo_phys_init(dev_priv);
}
static void gen9_dc_off_power_well_disable(struct drm_i915_private *dev_priv,
@@ -1608,7 +1665,7 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
intel_display_power_domain_str(domain));
power_domains->domain_use_count[domain]--;
- for_each_power_domain_well_rev(dev_priv, power_well, BIT_ULL(domain))
+ for_each_power_domain_well_reverse(dev_priv, power_well, BIT_ULL(domain))
intel_power_well_put(dev_priv, power_well);
mutex_unlock(&power_domains->lock);
@@ -2041,7 +2098,7 @@ static const struct i915_power_well_ops chv_dpio_cmn_power_well_ops = {
static const struct i915_power_well_desc i9xx_always_on_power_well[] = {
{
.name = "always-on",
- .always_on = 1,
+ .always_on = true,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
.id = DISP_PW_ID_NONE,
@@ -2058,7 +2115,7 @@ static const struct i915_power_well_ops i830_pipes_power_well_ops = {
static const struct i915_power_well_desc i830_power_wells[] = {
{
.name = "always-on",
- .always_on = 1,
+ .always_on = true,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
.id = DISP_PW_ID_NONE,
@@ -2102,7 +2159,7 @@ static const struct i915_power_well_regs hsw_power_well_regs = {
static const struct i915_power_well_desc hsw_power_wells[] = {
{
.name = "always-on",
- .always_on = 1,
+ .always_on = true,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
.id = DISP_PW_ID_NONE,
@@ -2123,7 +2180,7 @@ static const struct i915_power_well_desc hsw_power_wells[] = {
static const struct i915_power_well_desc bdw_power_wells[] = {
{
.name = "always-on",
- .always_on = 1,
+ .always_on = true,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
.id = DISP_PW_ID_NONE,
@@ -2166,7 +2223,7 @@ static const struct i915_power_well_ops vlv_dpio_power_well_ops = {
static const struct i915_power_well_desc vlv_power_wells[] = {
{
.name = "always-on",
- .always_on = 1,
+ .always_on = true,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
.id = DISP_PW_ID_NONE,
@@ -2242,7 +2299,7 @@ static const struct i915_power_well_desc vlv_power_wells[] = {
static const struct i915_power_well_desc chv_power_wells[] = {
{
.name = "always-on",
- .always_on = 1,
+ .always_on = true,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
.id = DISP_PW_ID_NONE,
@@ -2293,7 +2350,7 @@ bool intel_display_power_well_is_enabled(struct drm_i915_private *dev_priv,
static const struct i915_power_well_desc skl_power_wells[] = {
{
.name = "always-on",
- .always_on = 1,
+ .always_on = true,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
.id = DISP_PW_ID_NONE,
@@ -2301,6 +2358,7 @@ static const struct i915_power_well_desc skl_power_wells[] = {
{
.name = "power well 1",
/* Handled by the DMC firmware */
+ .always_on = true,
.domains = 0,
.ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_1,
@@ -2313,6 +2371,7 @@ static const struct i915_power_well_desc skl_power_wells[] = {
{
.name = "MISC IO power well",
/* Handled by the DMC firmware */
+ .always_on = true,
.domains = 0,
.ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_MISC_IO,
@@ -2385,13 +2444,15 @@ static const struct i915_power_well_desc skl_power_wells[] = {
static const struct i915_power_well_desc bxt_power_wells[] = {
{
.name = "always-on",
- .always_on = 1,
+ .always_on = true,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
.id = DISP_PW_ID_NONE,
},
{
.name = "power well 1",
+ /* Handled by the DMC firmware */
+ .always_on = true,
.domains = 0,
.ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_1,
@@ -2443,7 +2504,7 @@ static const struct i915_power_well_desc bxt_power_wells[] = {
static const struct i915_power_well_desc glk_power_wells[] = {
{
.name = "always-on",
- .always_on = 1,
+ .always_on = true,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
.id = DISP_PW_ID_NONE,
@@ -2451,6 +2512,7 @@ static const struct i915_power_well_desc glk_power_wells[] = {
{
.name = "power well 1",
/* Handled by the DMC firmware */
+ .always_on = true,
.domains = 0,
.ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_1,
@@ -2571,7 +2633,7 @@ static const struct i915_power_well_desc glk_power_wells[] = {
static const struct i915_power_well_desc cnl_power_wells[] = {
{
.name = "always-on",
- .always_on = 1,
+ .always_on = true,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
.id = DISP_PW_ID_NONE,
@@ -2579,6 +2641,7 @@ static const struct i915_power_well_desc cnl_power_wells[] = {
{
.name = "power well 1",
/* Handled by the DMC firmware */
+ .always_on = true,
.domains = 0,
.ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_1,
@@ -2716,6 +2779,13 @@ static const struct i915_power_well_ops icl_combo_phy_aux_power_well_ops = {
.is_enabled = hsw_power_well_enabled,
};
+static const struct i915_power_well_ops icl_tc_phy_aux_power_well_ops = {
+ .sync_hw = hsw_power_well_sync_hw,
+ .enable = icl_tc_phy_aux_power_well_enable,
+ .disable = hsw_power_well_disable,
+ .is_enabled = hsw_power_well_enabled,
+};
+
static const struct i915_power_well_regs icl_aux_power_well_regs = {
.bios = ICL_PWR_WELL_CTL_AUX1,
.driver = ICL_PWR_WELL_CTL_AUX2,
@@ -2731,7 +2801,7 @@ static const struct i915_power_well_regs icl_ddi_power_well_regs = {
static const struct i915_power_well_desc icl_power_wells[] = {
{
.name = "always-on",
- .always_on = 1,
+ .always_on = true,
.domains = POWER_DOMAIN_MASK,
.ops = &i9xx_always_on_power_well_ops,
.id = DISP_PW_ID_NONE,
@@ -2739,6 +2809,7 @@ static const struct i915_power_well_desc icl_power_wells[] = {
{
.name = "power well 1",
/* Handled by the DMC firmware */
+ .always_on = true,
.domains = 0,
.ops = &hsw_power_well_ops,
.id = SKL_DISP_PW_1,
@@ -2861,81 +2932,89 @@ static const struct i915_power_well_desc icl_power_wells[] = {
{
.name = "AUX C",
.domains = ICL_AUX_C_IO_POWER_DOMAINS,
- .ops = &hsw_power_well_ops,
+ .ops = &icl_tc_phy_aux_power_well_ops,
.id = DISP_PW_ID_NONE,
{
.hsw.regs = &icl_aux_power_well_regs,
.hsw.idx = ICL_PW_CTL_IDX_AUX_C,
+ .hsw.is_tc_tbt = false,
},
},
{
.name = "AUX D",
.domains = ICL_AUX_D_IO_POWER_DOMAINS,
- .ops = &hsw_power_well_ops,
+ .ops = &icl_tc_phy_aux_power_well_ops,
.id = DISP_PW_ID_NONE,
{
.hsw.regs = &icl_aux_power_well_regs,
.hsw.idx = ICL_PW_CTL_IDX_AUX_D,
+ .hsw.is_tc_tbt = false,
},
},
{
.name = "AUX E",
.domains = ICL_AUX_E_IO_POWER_DOMAINS,
- .ops = &hsw_power_well_ops,
+ .ops = &icl_tc_phy_aux_power_well_ops,
.id = DISP_PW_ID_NONE,
{
.hsw.regs = &icl_aux_power_well_regs,
.hsw.idx = ICL_PW_CTL_IDX_AUX_E,
+ .hsw.is_tc_tbt = false,
},
},
{
.name = "AUX F",
.domains = ICL_AUX_F_IO_POWER_DOMAINS,
- .ops = &hsw_power_well_ops,
+ .ops = &icl_tc_phy_aux_power_well_ops,
.id = DISP_PW_ID_NONE,
{
.hsw.regs = &icl_aux_power_well_regs,
.hsw.idx = ICL_PW_CTL_IDX_AUX_F,
+ .hsw.is_tc_tbt = false,
},
},
{
.name = "AUX TBT1",
.domains = ICL_AUX_TBT1_IO_POWER_DOMAINS,
- .ops = &hsw_power_well_ops,
+ .ops = &icl_tc_phy_aux_power_well_ops,
.id = DISP_PW_ID_NONE,
{
.hsw.regs = &icl_aux_power_well_regs,
.hsw.idx = ICL_PW_CTL_IDX_AUX_TBT1,
+ .hsw.is_tc_tbt = true,
},
},
{
.name = "AUX TBT2",
.domains = ICL_AUX_TBT2_IO_POWER_DOMAINS,
- .ops = &hsw_power_well_ops,
+ .ops = &icl_tc_phy_aux_power_well_ops,
.id = DISP_PW_ID_NONE,
{
.hsw.regs = &icl_aux_power_well_regs,
.hsw.idx = ICL_PW_CTL_IDX_AUX_TBT2,
+ .hsw.is_tc_tbt = true,
},
},
{
.name = "AUX TBT3",
.domains = ICL_AUX_TBT3_IO_POWER_DOMAINS,
- .ops = &hsw_power_well_ops,
+ .ops = &icl_tc_phy_aux_power_well_ops,
.id = DISP_PW_ID_NONE,
{
.hsw.regs = &icl_aux_power_well_regs,
.hsw.idx = ICL_PW_CTL_IDX_AUX_TBT3,
+ .hsw.is_tc_tbt = true,
},
},
{
.name = "AUX TBT4",
.domains = ICL_AUX_TBT4_IO_POWER_DOMAINS,
- .ops = &hsw_power_well_ops,
+ .ops = &icl_tc_phy_aux_power_well_ops,
.id = DISP_PW_ID_NONE,
{
.hsw.regs = &icl_aux_power_well_regs,
.hsw.idx = ICL_PW_CTL_IDX_AUX_TBT4,
+ .hsw.is_tc_tbt = true,
},
},
{
@@ -2969,17 +3048,20 @@ static uint32_t get_allowed_dc_mask(const struct drm_i915_private *dev_priv,
int requested_dc;
int max_dc;
- if (IS_GEN9_BC(dev_priv) || INTEL_INFO(dev_priv)->gen >= 10) {
+ if (INTEL_GEN(dev_priv) >= 11) {
max_dc = 2;
- mask = 0;
- } else if (IS_GEN9_LP(dev_priv)) {
- max_dc = 1;
/*
* DC9 has a separate HW flow from the rest of the DC states,
* not depending on the DMC firmware. It's needed by system
* suspend/resume, so allow it unconditionally.
*/
mask = DC_STATE_EN_DC9;
+ } else if (IS_GEN10(dev_priv) || IS_GEN9_BC(dev_priv)) {
+ max_dc = 2;
+ mask = 0;
+ } else if (IS_GEN9_LP(dev_priv)) {
+ max_dc = 1;
+ mask = DC_STATE_EN_DC9;
} else {
max_dc = 0;
mask = 0;
@@ -3075,12 +3157,6 @@ int intel_power_domains_init(struct drm_i915_private *dev_priv)
*/
if (IS_ICELAKE(dev_priv)) {
err = set_power_wells(power_domains, icl_power_wells);
- } else if (IS_HASWELL(dev_priv)) {
- err = set_power_wells(power_domains, hsw_power_wells);
- } else if (IS_BROADWELL(dev_priv)) {
- err = set_power_wells(power_domains, bdw_power_wells);
- } else if (IS_GEN9_BC(dev_priv)) {
- err = set_power_wells(power_domains, skl_power_wells);
} else if (IS_CANNONLAKE(dev_priv)) {
err = set_power_wells(power_domains, cnl_power_wells);
@@ -3092,13 +3168,18 @@ int intel_power_domains_init(struct drm_i915_private *dev_priv)
*/
if (!IS_CNL_WITH_PORT_F(dev_priv))
power_domains->power_well_count -= 2;
-
- } else if (IS_BROXTON(dev_priv)) {
- err = set_power_wells(power_domains, bxt_power_wells);
} else if (IS_GEMINILAKE(dev_priv)) {
err = set_power_wells(power_domains, glk_power_wells);
+ } else if (IS_BROXTON(dev_priv)) {
+ err = set_power_wells(power_domains, bxt_power_wells);
+ } else if (IS_GEN9_BC(dev_priv)) {
+ err = set_power_wells(power_domains, skl_power_wells);
} else if (IS_CHERRYVIEW(dev_priv)) {
err = set_power_wells(power_domains, chv_power_wells);
+ } else if (IS_BROADWELL(dev_priv)) {
+ err = set_power_wells(power_domains, bdw_power_wells);
+ } else if (IS_HASWELL(dev_priv)) {
+ err = set_power_wells(power_domains, hsw_power_wells);
} else if (IS_VALLEYVIEW(dev_priv)) {
err = set_power_wells(power_domains, vlv_power_wells);
} else if (IS_I830(dev_priv)) {
@@ -3238,18 +3319,40 @@ static void icl_mbus_init(struct drm_i915_private *dev_priv)
I915_WRITE(MBUS_ABOX_CTL, val);
}
+static void intel_pch_reset_handshake(struct drm_i915_private *dev_priv,
+ bool enable)
+{
+ i915_reg_t reg;
+ u32 reset_bits, val;
+
+ if (IS_IVYBRIDGE(dev_priv)) {
+ reg = GEN7_MSG_CTL;
+ reset_bits = WAIT_FOR_PCH_FLR_ACK | WAIT_FOR_PCH_RESET_ACK;
+ } else {
+ reg = HSW_NDE_RSTWRN_OPT;
+ reset_bits = RESET_PCH_HANDSHAKE_ENABLE;
+ }
+
+ val = I915_READ(reg);
+
+ if (enable)
+ val |= reset_bits;
+ else
+ val &= ~reset_bits;
+
+ I915_WRITE(reg, val);
+}
+
static void skl_display_core_init(struct drm_i915_private *dev_priv,
bool resume)
{
struct i915_power_domains *power_domains = &dev_priv->power_domains;
struct i915_power_well *well;
- 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);
+ intel_pch_reset_handshake(dev_priv, !HAS_PCH_NOP(dev_priv));
/* enable PG1 and Misc I/O */
mutex_lock(&power_domains->lock);
@@ -3305,7 +3408,6 @@ void bxt_display_core_init(struct drm_i915_private *dev_priv,
{
struct i915_power_domains *power_domains = &dev_priv->power_domains;
struct i915_power_well *well;
- uint32_t val;
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
@@ -3315,9 +3417,7 @@ void bxt_display_core_init(struct drm_i915_private *dev_priv,
* Move the handshake programming to initialization sequence.
* Previously was left up to BIOS.
*/
- val = I915_READ(HSW_NDE_RSTWRN_OPT);
- val &= ~RESET_PCH_HANDSHAKE_ENABLE;
- I915_WRITE(HSW_NDE_RSTWRN_OPT, val);
+ intel_pch_reset_handshake(dev_priv, false);
/* Enable PG1 */
mutex_lock(&power_domains->lock);
@@ -3363,101 +3463,18 @@ void bxt_display_core_uninit(struct drm_i915_private *dev_priv)
usleep_range(10, 30); /* 10 us delay per Bspec */
}
-enum {
- PROCMON_0_85V_DOT_0,
- PROCMON_0_95V_DOT_0,
- PROCMON_0_95V_DOT_1,
- PROCMON_1_05V_DOT_0,
- PROCMON_1_05V_DOT_1,
-};
-
-static const struct cnl_procmon {
- u32 dw1, dw9, dw10;
-} cnl_procmon_values[] = {
- [PROCMON_0_85V_DOT_0] =
- { .dw1 = 0x00000000, .dw9 = 0x62AB67BB, .dw10 = 0x51914F96, },
- [PROCMON_0_95V_DOT_0] =
- { .dw1 = 0x00000000, .dw9 = 0x86E172C7, .dw10 = 0x77CA5EAB, },
- [PROCMON_0_95V_DOT_1] =
- { .dw1 = 0x00000000, .dw9 = 0x93F87FE1, .dw10 = 0x8AE871C5, },
- [PROCMON_1_05V_DOT_0] =
- { .dw1 = 0x00000000, .dw9 = 0x98FA82DD, .dw10 = 0x89E46DC1, },
- [PROCMON_1_05V_DOT_1] =
- { .dw1 = 0x00440000, .dw9 = 0x9A00AB25, .dw10 = 0x8AE38FF1, },
-};
-
-/*
- * CNL has just one set of registers, while ICL has two sets: one for port A and
- * the other for port B. The CNL registers are equivalent to the ICL port A
- * registers, that's why we call the ICL macros even though the function has CNL
- * on its name.
- */
-static void cnl_set_procmon_ref_values(struct drm_i915_private *dev_priv,
- enum port port)
-{
- const struct cnl_procmon *procmon;
- u32 val;
-
- val = I915_READ(ICL_PORT_COMP_DW3(port));
- switch (val & (PROCESS_INFO_MASK | VOLTAGE_INFO_MASK)) {
- default:
- MISSING_CASE(val);
- /* fall through */
- case VOLTAGE_INFO_0_85V | PROCESS_INFO_DOT_0:
- procmon = &cnl_procmon_values[PROCMON_0_85V_DOT_0];
- break;
- case VOLTAGE_INFO_0_95V | PROCESS_INFO_DOT_0:
- procmon = &cnl_procmon_values[PROCMON_0_95V_DOT_0];
- break;
- case VOLTAGE_INFO_0_95V | PROCESS_INFO_DOT_1:
- procmon = &cnl_procmon_values[PROCMON_0_95V_DOT_1];
- break;
- case VOLTAGE_INFO_1_05V | PROCESS_INFO_DOT_0:
- procmon = &cnl_procmon_values[PROCMON_1_05V_DOT_0];
- break;
- case VOLTAGE_INFO_1_05V | PROCESS_INFO_DOT_1:
- procmon = &cnl_procmon_values[PROCMON_1_05V_DOT_1];
- break;
- }
-
- val = I915_READ(ICL_PORT_COMP_DW1(port));
- val &= ~((0xff << 16) | 0xff);
- val |= procmon->dw1;
- I915_WRITE(ICL_PORT_COMP_DW1(port), val);
-
- I915_WRITE(ICL_PORT_COMP_DW9(port), procmon->dw9);
- I915_WRITE(ICL_PORT_COMP_DW10(port), procmon->dw10);
-}
-
static void cnl_display_core_init(struct drm_i915_private *dev_priv, bool resume)
{
struct i915_power_domains *power_domains = &dev_priv->power_domains;
struct i915_power_well *well;
- u32 val;
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
/* 1. Enable PCH Reset Handshake */
- val = I915_READ(HSW_NDE_RSTWRN_OPT);
- val |= RESET_PCH_HANDSHAKE_ENABLE;
- I915_WRITE(HSW_NDE_RSTWRN_OPT, val);
-
- /* 2. Enable Comp */
- val = I915_READ(CHICKEN_MISC_2);
- val &= ~CNL_COMP_PWR_DOWN;
- I915_WRITE(CHICKEN_MISC_2, val);
-
- /* Dummy PORT_A to get the correct CNL register from the ICL macro */
- cnl_set_procmon_ref_values(dev_priv, PORT_A);
+ intel_pch_reset_handshake(dev_priv, !HAS_PCH_NOP(dev_priv));
- val = I915_READ(CNL_PORT_COMP_DW0);
- val |= COMP_INIT;
- I915_WRITE(CNL_PORT_COMP_DW0, val);
-
- /* 3. */
- val = I915_READ(CNL_PORT_CL1CM_DW5);
- val |= CL_POWER_DOWN_ENABLE;
- I915_WRITE(CNL_PORT_CL1CM_DW5, val);
+ /* 2-3. */
+ cnl_combo_phys_init(dev_priv);
/*
* 4. Enable Power Well 1 (PG1).
@@ -3482,7 +3499,6 @@ static void cnl_display_core_uninit(struct drm_i915_private *dev_priv)
{
struct i915_power_domains *power_domains = &dev_priv->power_domains;
struct i915_power_well *well;
- u32 val;
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
@@ -3506,44 +3522,23 @@ static void cnl_display_core_uninit(struct drm_i915_private *dev_priv)
usleep_range(10, 30); /* 10 us delay per Bspec */
- /* 5. Disable Comp */
- val = I915_READ(CHICKEN_MISC_2);
- val |= CNL_COMP_PWR_DOWN;
- I915_WRITE(CHICKEN_MISC_2, val);
+ /* 5. */
+ cnl_combo_phys_uninit(dev_priv);
}
-static void icl_display_core_init(struct drm_i915_private *dev_priv,
- bool resume)
+void icl_display_core_init(struct drm_i915_private *dev_priv,
+ bool resume)
{
struct i915_power_domains *power_domains = &dev_priv->power_domains;
struct i915_power_well *well;
- enum port port;
- u32 val;
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
/* 1. Enable PCH reset handshake. */
- val = I915_READ(HSW_NDE_RSTWRN_OPT);
- val |= RESET_PCH_HANDSHAKE_ENABLE;
- I915_WRITE(HSW_NDE_RSTWRN_OPT, val);
-
- for (port = PORT_A; port <= PORT_B; port++) {
- /* 2. Enable DDI combo PHY comp. */
- val = I915_READ(ICL_PHY_MISC(port));
- val &= ~ICL_PHY_MISC_DE_IO_COMP_PWR_DOWN;
- I915_WRITE(ICL_PHY_MISC(port), val);
-
- cnl_set_procmon_ref_values(dev_priv, port);
-
- val = I915_READ(ICL_PORT_COMP_DW0(port));
- val |= COMP_INIT;
- I915_WRITE(ICL_PORT_COMP_DW0(port), val);
-
- /* 3. Set power down enable. */
- val = I915_READ(ICL_PORT_CL_DW5(port));
- val |= CL_POWER_DOWN_ENABLE;
- I915_WRITE(ICL_PORT_CL_DW5(port), val);
- }
+ intel_pch_reset_handshake(dev_priv, !HAS_PCH_NOP(dev_priv));
+
+ /* 2-3. */
+ icl_combo_phys_init(dev_priv);
/*
* 4. Enable Power Well 1 (PG1).
@@ -3567,12 +3562,10 @@ static void icl_display_core_init(struct drm_i915_private *dev_priv,
intel_csr_load_program(dev_priv);
}
-static void icl_display_core_uninit(struct drm_i915_private *dev_priv)
+void icl_display_core_uninit(struct drm_i915_private *dev_priv)
{
struct i915_power_domains *power_domains = &dev_priv->power_domains;
struct i915_power_well *well;
- enum port port;
- u32 val;
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
@@ -3594,12 +3587,8 @@ static void icl_display_core_uninit(struct drm_i915_private *dev_priv)
intel_power_well_disable(dev_priv, well);
mutex_unlock(&power_domains->lock);
- /* 5. Disable Comp */
- for (port = PORT_A; port <= PORT_B; port++) {
- val = I915_READ(ICL_PHY_MISC(port));
- val |= ICL_PHY_MISC_DE_IO_COMP_PWR_DOWN;
- I915_WRITE(ICL_PHY_MISC(port), val);
- }
+ /* 5. */
+ icl_combo_phys_uninit(dev_priv);
}
static void chv_phy_control_init(struct drm_i915_private *dev_priv)
@@ -3757,7 +3746,8 @@ void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume)
mutex_lock(&power_domains->lock);
vlv_cmnlane_wa(dev_priv);
mutex_unlock(&power_domains->lock);
- }
+ } else if (IS_IVYBRIDGE(dev_priv) || INTEL_GEN(dev_priv) >= 7)
+ intel_pch_reset_handshake(dev_priv, !HAS_PCH_NOP(dev_priv));
/*
* Keep all power wells enabled for any dependent HW access during
@@ -3951,14 +3941,6 @@ static void intel_power_domains_verify_state(struct drm_i915_private *dev_priv)
int domains_count;
bool enabled;
- /*
- * Power wells not belonging to any domain (like the MISC_IO
- * and PW1 power wells) are under FW control, so ignore them,
- * since their state can change asynchronously.
- */
- if (!power_well->desc->domains)
- continue;
-
enabled = power_well->desc->ops->is_enabled(dev_priv,
power_well);
if ((power_well->count || power_well->desc->always_on) !=
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-23 13:50:17 +0300