diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_runtime_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_runtime_pm.c | 519 |
1 files changed, 324 insertions, 195 deletions
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index 6e54d978d9d4..7fb1da4e7fc3 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -89,6 +89,10 @@ intel_display_power_domain_str(enum intel_display_power_domain domain) return "TRANSCODER_C"; case POWER_DOMAIN_TRANSCODER_EDP: return "TRANSCODER_EDP"; + case POWER_DOMAIN_TRANSCODER_DSI_A: + return "TRANSCODER_DSI_A"; + case POWER_DOMAIN_TRANSCODER_DSI_C: + return "TRANSCODER_DSI_C"; case POWER_DOMAIN_PORT_DDI_A_LANES: return "PORT_DDI_A_LANES"; case POWER_DOMAIN_PORT_DDI_B_LANES: @@ -393,11 +397,6 @@ static void hsw_set_power_well(struct drm_i915_private *dev_priv, 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_2_POWER_DOMAINS | \ - SKL_DISPLAY_DC_OFF_POWER_DOMAINS)) | \ - BIT(POWER_DOMAIN_INIT)) #define BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \ BIT(POWER_DOMAIN_TRANSCODER_A) | \ @@ -415,36 +414,21 @@ static void hsw_set_power_well(struct drm_i915_private *dev_priv, 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_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)) | \ - BIT(POWER_DOMAIN_INIT)) static void assert_can_enable_dc9(struct drm_i915_private *dev_priv) { - struct drm_device *dev = dev_priv->dev; - - WARN(!IS_BROXTON(dev), "Platform doesn't support DC9.\n"); - WARN((I915_READ(DC_STATE_EN) & DC_STATE_EN_DC9), - "DC9 already programmed to be enabled.\n"); - WARN(I915_READ(DC_STATE_EN) & DC_STATE_EN_UPTO_DC5, - "DC5 still not disabled to enable DC9.\n"); - WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on.\n"); - WARN(intel_irqs_enabled(dev_priv), "Interrupts not disabled yet.\n"); + WARN_ONCE((I915_READ(DC_STATE_EN) & DC_STATE_EN_DC9), + "DC9 already programmed to be enabled.\n"); + WARN_ONCE(I915_READ(DC_STATE_EN) & DC_STATE_EN_UPTO_DC5, + "DC5 still not disabled to enable DC9.\n"); + WARN_ONCE(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on.\n"); + WARN_ONCE(intel_irqs_enabled(dev_priv), + "Interrupts not disabled yet.\n"); /* * TODO: check for the following to verify the conditions to enter DC9 @@ -457,11 +441,10 @@ static void assert_can_enable_dc9(struct drm_i915_private *dev_priv) static void assert_can_disable_dc9(struct drm_i915_private *dev_priv) { - WARN(intel_irqs_enabled(dev_priv), "Interrupts not disabled yet.\n"); - WARN(!(I915_READ(DC_STATE_EN) & DC_STATE_EN_DC9), - "DC9 already programmed to be disabled.\n"); - WARN(I915_READ(DC_STATE_EN) & DC_STATE_EN_UPTO_DC5, - "DC5 still not disabled.\n"); + WARN_ONCE(intel_irqs_enabled(dev_priv), + "Interrupts not disabled yet.\n"); + WARN_ONCE(I915_READ(DC_STATE_EN) & DC_STATE_EN_UPTO_DC5, + "DC5 still not disabled.\n"); /* * TODO: check for the following to verify DC9 state was indeed @@ -472,24 +455,6 @@ static void assert_can_disable_dc9(struct drm_i915_private *dev_priv) */ } -static void gen9_set_dc_state_debugmask(struct drm_i915_private *dev_priv) -{ - uint32_t val, mask; - - mask = DC_STATE_DEBUG_MASK_MEMORY_UP; - - if (IS_BROXTON(dev_priv)) - mask |= DC_STATE_DEBUG_MASK_CORES; - - /* The below bit doesn't need to be cleared ever afterwards */ - val = I915_READ(DC_STATE_DEBUG); - if ((val & mask) != mask) { - val |= mask; - I915_WRITE(DC_STATE_DEBUG, val); - POSTING_READ(DC_STATE_DEBUG); - } -} - static void gen9_write_dc_state(struct drm_i915_private *dev_priv, u32 state) { @@ -527,10 +492,9 @@ static void gen9_write_dc_state(struct drm_i915_private *dev_priv, state, rewrites); } -static void gen9_set_dc_state(struct drm_i915_private *dev_priv, uint32_t state) +static u32 gen9_dc_mask(struct drm_i915_private *dev_priv) { - uint32_t val; - uint32_t mask; + u32 mask; mask = DC_STATE_EN_UPTO_DC5; if (IS_BROXTON(dev_priv)) @@ -538,14 +502,30 @@ static void gen9_set_dc_state(struct drm_i915_private *dev_priv, uint32_t state) else mask |= DC_STATE_EN_UPTO_DC6; - WARN_ON_ONCE(state & ~mask); + return mask; +} + +void gen9_sanitize_dc_state(struct drm_i915_private *dev_priv) +{ + u32 val; - 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; + val = I915_READ(DC_STATE_EN) & gen9_dc_mask(dev_priv); + + DRM_DEBUG_KMS("Resetting DC state tracking from %02x to %02x\n", + dev_priv->csr.dc_state, val); + dev_priv->csr.dc_state = val; +} + +static void gen9_set_dc_state(struct drm_i915_private *dev_priv, uint32_t state) +{ + uint32_t val; + uint32_t mask; + + if (WARN_ON_ONCE(state & ~dev_priv->csr.allowed_dc_mask)) + state &= dev_priv->csr.allowed_dc_mask; val = I915_READ(DC_STATE_EN); + mask = gen9_dc_mask(dev_priv); DRM_DEBUG_KMS("Setting DC state from %02x to %02x\n", val & mask, state); @@ -590,13 +570,9 @@ static void assert_csr_loaded(struct drm_i915_private *dev_priv) static void assert_can_enable_dc5(struct drm_i915_private *dev_priv) { - struct drm_device *dev = dev_priv->dev; bool pg2_enabled = intel_display_power_well_is_enabled(dev_priv, SKL_DISP_PW_2); - WARN_ONCE(!IS_SKYLAKE(dev) && !IS_KABYLAKE(dev), - "Platform doesn't support DC5.\n"); - WARN_ONCE(!HAS_RUNTIME_PM(dev), "Runtime PM not enabled.\n"); WARN_ONCE(pg2_enabled, "PG2 not disabled to enable DC5.\n"); WARN_ONCE((I915_READ(DC_STATE_EN) & DC_STATE_EN_UPTO_DC5), @@ -606,19 +582,7 @@ static void assert_can_enable_dc5(struct drm_i915_private *dev_priv) assert_csr_loaded(dev_priv); } -static void assert_can_disable_dc5(struct drm_i915_private *dev_priv) -{ - /* - * 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; - - assert_rpm_wakelock_held(dev_priv); -} - -static void gen9_enable_dc5(struct drm_i915_private *dev_priv) +void gen9_enable_dc5(struct drm_i915_private *dev_priv) { assert_can_enable_dc5(dev_priv); @@ -629,11 +593,6 @@ static void gen9_enable_dc5(struct drm_i915_private *dev_priv) static void assert_can_enable_dc6(struct drm_i915_private *dev_priv) { - struct drm_device *dev = dev_priv->dev; - - WARN_ONCE(!IS_SKYLAKE(dev) && !IS_KABYLAKE(dev), - "Platform doesn't support DC6.\n"); - WARN_ONCE(!HAS_RUNTIME_PM(dev), "Runtime PM not enabled.\n"); WARN_ONCE(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE, "Backlight is not disabled.\n"); WARN_ONCE((I915_READ(DC_STATE_EN) & DC_STATE_EN_UPTO_DC6), @@ -642,47 +601,60 @@ static void assert_can_enable_dc6(struct drm_i915_private *dev_priv) assert_csr_loaded(dev_priv); } -static void assert_can_disable_dc6(struct drm_i915_private *dev_priv) +void skl_enable_dc6(struct drm_i915_private *dev_priv) { - /* - * 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; + assert_can_enable_dc6(dev_priv); + + DRM_DEBUG_KMS("Enabling DC6\n"); + + gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC6); - WARN_ONCE(!(I915_READ(DC_STATE_EN) & DC_STATE_EN_UPTO_DC6), - "DC6 already programmed to be disabled.\n"); } -static void gen9_disable_dc5_dc6(struct drm_i915_private *dev_priv) +void skl_disable_dc6(struct drm_i915_private *dev_priv) { - assert_can_disable_dc5(dev_priv); - - if ((IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) && - i915.enable_dc != 0 && i915.enable_dc != 1) - assert_can_disable_dc6(dev_priv); + DRM_DEBUG_KMS("Disabling DC6\n"); gen9_set_dc_state(dev_priv, DC_STATE_DISABLE); } -void skl_enable_dc6(struct drm_i915_private *dev_priv) +static void +gen9_sanitize_power_well_requests(struct drm_i915_private *dev_priv, + struct i915_power_well *power_well) { - assert_can_enable_dc6(dev_priv); + enum skl_disp_power_wells power_well_id = power_well->data; + u32 val; + u32 mask; - DRM_DEBUG_KMS("Enabling DC6\n"); + mask = SKL_POWER_WELL_REQ(power_well_id); - gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC6); + val = I915_READ(HSW_PWR_WELL_KVMR); + if (WARN_ONCE(val & mask, "Clearing unexpected KVMR request for %s\n", + power_well->name)) + I915_WRITE(HSW_PWR_WELL_KVMR, val & ~mask); -} + val = I915_READ(HSW_PWR_WELL_BIOS); + val |= I915_READ(HSW_PWR_WELL_DEBUG); -void skl_disable_dc6(struct drm_i915_private *dev_priv) -{ - assert_can_disable_dc6(dev_priv); + if (!(val & mask)) + return; - DRM_DEBUG_KMS("Disabling DC6\n"); + /* + * DMC is known to force on the request bits for power well 1 on SKL + * and BXT and the misc IO power well on SKL but we don't expect any + * other request bits to be set, so WARN for those. + */ + if (power_well_id == SKL_DISP_PW_1 || + ((IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) && + power_well_id == SKL_DISP_PW_MISC_IO)) + DRM_DEBUG_DRIVER("Clearing auxiliary requests for %s forced on " + "by DMC\n", power_well->name); + else + WARN_ONCE(1, "Clearing unexpected auxiliary requests for %s\n", + power_well->name); - gen9_set_dc_state(dev_priv, DC_STATE_DISABLE); + I915_WRITE(HSW_PWR_WELL_BIOS, val & ~mask); + I915_WRITE(HSW_PWR_WELL_DEBUG, val & ~mask); } static void skl_set_power_well(struct drm_i915_private *dev_priv, @@ -739,10 +711,6 @@ static void skl_set_power_well(struct drm_i915_private *dev_priv, if (!is_enabled) { DRM_DEBUG_KMS("Enabling %s\n", power_well->name); - if (wait_for((I915_READ(HSW_PWR_WELL_DRIVER) & - state_mask), 1)) - DRM_ERROR("%s enable timeout\n", - power_well->name); check_fuse_status = true; } } else { @@ -751,8 +719,16 @@ static void skl_set_power_well(struct drm_i915_private *dev_priv, POSTING_READ(HSW_PWR_WELL_DRIVER); DRM_DEBUG_KMS("Disabling %s\n", power_well->name); } + + if (IS_GEN9(dev_priv)) + gen9_sanitize_power_well_requests(dev_priv, power_well); } + if (wait_for(!!(I915_READ(HSW_PWR_WELL_DRIVER) & state_mask) == enable, + 1)) + DRM_ERROR("%s %s timeout\n", + power_well->name, enable ? "enable" : "disable"); + if (check_fuse_status) { if (power_well->data == SKL_DISP_PW_1) { if (wait_for((I915_READ(SKL_FUSE_STATUS) & @@ -833,32 +809,33 @@ static bool gen9_dc_off_power_well_enabled(struct drm_i915_private *dev_priv, 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); + gen9_set_dc_state(dev_priv, DC_STATE_DISABLE); + + if (IS_BROXTON(dev_priv)) { + broxton_cdclk_verify_state(dev_priv); + broxton_ddi_phy_verify_state(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) || IS_KABYLAKE(dev_priv)) && - i915.enable_dc != 0 && i915.enable_dc != 1) + if (!dev_priv->csr.dmc_payload) + return; + + if (dev_priv->csr.allowed_dc_mask & DC_STATE_EN_UPTO_DC6) skl_enable_dc6(dev_priv); - else + else if (dev_priv->csr.allowed_dc_mask & DC_STATE_EN_UPTO_DC5) 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) || IS_KABYLAKE(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); - } + if (power_well->count > 0) + gen9_dc_off_power_well_enable(dev_priv, power_well); + else + gen9_dc_off_power_well_disable(dev_priv, power_well); } static void i9xx_always_on_power_well_noop(struct drm_i915_private *dev_priv, @@ -962,6 +939,17 @@ static bool vlv_power_well_enabled(struct drm_i915_private *dev_priv, return enabled; } +static void vlv_init_display_clock_gating(struct drm_i915_private *dev_priv) +{ + I915_WRITE(DSPCLK_GATE_D, VRHUNIT_CLOCK_GATE_DISABLE); + + /* + * Disable trickle feed and enable pnd deadline calculation + */ + I915_WRITE(MI_ARB_VLV, MI_ARB_DISPLAY_TRICKLE_FEED_DISABLE); + I915_WRITE(CBR1_VLV, 0); +} + static void vlv_display_power_well_init(struct drm_i915_private *dev_priv) { enum pipe pipe; @@ -984,6 +972,8 @@ static void vlv_display_power_well_init(struct drm_i915_private *dev_priv) I915_WRITE(DPLL(pipe), val); } + vlv_init_display_clock_gating(dev_priv); + spin_lock_irq(&dev_priv->irq_lock); valleyview_enable_display_irqs(dev_priv); spin_unlock_irq(&dev_priv->irq_lock); @@ -1622,34 +1612,56 @@ void intel_display_power_put(struct drm_i915_private *dev_priv, intel_runtime_pm_put(dev_priv); } -#define HSW_ALWAYS_ON_POWER_DOMAINS ( \ - BIT(POWER_DOMAIN_PIPE_A) | \ - BIT(POWER_DOMAIN_TRANSCODER_EDP) | \ - BIT(POWER_DOMAIN_PORT_DDI_A_LANES) | \ +#define HSW_DISPLAY_POWER_DOMAINS ( \ + BIT(POWER_DOMAIN_PIPE_B) | \ + BIT(POWER_DOMAIN_PIPE_C) | \ + BIT(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \ + BIT(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \ + BIT(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \ + BIT(POWER_DOMAIN_TRANSCODER_A) | \ + BIT(POWER_DOMAIN_TRANSCODER_B) | \ + BIT(POWER_DOMAIN_TRANSCODER_C) | \ 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) | \ + BIT(POWER_DOMAIN_PORT_CRT) | /* DDI E */ \ + BIT(POWER_DOMAIN_VGA) | \ + BIT(POWER_DOMAIN_AUDIO) | \ BIT(POWER_DOMAIN_INIT)) -#define BDW_ALWAYS_ON_POWER_DOMAINS ( \ - HSW_ALWAYS_ON_POWER_DOMAINS | \ - BIT(POWER_DOMAIN_PIPE_A_PANEL_FITTER)) -#define BDW_DISPLAY_POWER_DOMAINS ( \ - (POWER_DOMAIN_MASK & ~BDW_ALWAYS_ON_POWER_DOMAINS) | \ +#define BDW_DISPLAY_POWER_DOMAINS ( \ + BIT(POWER_DOMAIN_PIPE_B) | \ + BIT(POWER_DOMAIN_PIPE_C) | \ + BIT(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \ + BIT(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \ + BIT(POWER_DOMAIN_TRANSCODER_A) | \ + BIT(POWER_DOMAIN_TRANSCODER_B) | \ + BIT(POWER_DOMAIN_TRANSCODER_C) | \ + 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) | /* DDI E */ \ + BIT(POWER_DOMAIN_VGA) | \ + BIT(POWER_DOMAIN_AUDIO) | \ BIT(POWER_DOMAIN_INIT)) -#define VLV_ALWAYS_ON_POWER_DOMAINS BIT(POWER_DOMAIN_INIT) -#define VLV_DISPLAY_POWER_DOMAINS POWER_DOMAIN_MASK +#define VLV_DISPLAY_POWER_DOMAINS ( \ + BIT(POWER_DOMAIN_PIPE_A) | \ + BIT(POWER_DOMAIN_PIPE_B) | \ + BIT(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \ + BIT(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \ + BIT(POWER_DOMAIN_TRANSCODER_A) | \ + BIT(POWER_DOMAIN_TRANSCODER_B) | \ + BIT(POWER_DOMAIN_PORT_DDI_B_LANES) | \ + BIT(POWER_DOMAIN_PORT_DDI_C_LANES) | \ + BIT(POWER_DOMAIN_PORT_DSI) | \ + BIT(POWER_DOMAIN_PORT_CRT) | \ + BIT(POWER_DOMAIN_VGA) | \ + BIT(POWER_DOMAIN_AUDIO) | \ + BIT(POWER_DOMAIN_AUX_B) | \ + BIT(POWER_DOMAIN_AUX_C) | \ + BIT(POWER_DOMAIN_GMBUS) | \ + BIT(POWER_DOMAIN_INIT)) #define VLV_DPIO_CMN_BC_POWER_DOMAINS ( \ BIT(POWER_DOMAIN_PORT_DDI_B_LANES) | \ @@ -1679,6 +1691,28 @@ void intel_display_power_put(struct drm_i915_private *dev_priv, BIT(POWER_DOMAIN_AUX_C) | \ BIT(POWER_DOMAIN_INIT)) +#define CHV_DISPLAY_POWER_DOMAINS ( \ + BIT(POWER_DOMAIN_PIPE_A) | \ + BIT(POWER_DOMAIN_PIPE_B) | \ + BIT(POWER_DOMAIN_PIPE_C) | \ + BIT(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \ + BIT(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \ + BIT(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \ + BIT(POWER_DOMAIN_TRANSCODER_A) | \ + BIT(POWER_DOMAIN_TRANSCODER_B) | \ + BIT(POWER_DOMAIN_TRANSCODER_C) | \ + 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_DSI) | \ + BIT(POWER_DOMAIN_VGA) | \ + BIT(POWER_DOMAIN_AUDIO) | \ + BIT(POWER_DOMAIN_AUX_B) | \ + BIT(POWER_DOMAIN_AUX_C) | \ + BIT(POWER_DOMAIN_AUX_D) | \ + BIT(POWER_DOMAIN_GMBUS) | \ + BIT(POWER_DOMAIN_INIT)) + #define CHV_DPIO_CMN_BC_POWER_DOMAINS ( \ BIT(POWER_DOMAIN_PORT_DDI_B_LANES) | \ BIT(POWER_DOMAIN_PORT_DDI_C_LANES) | \ @@ -1746,7 +1780,7 @@ static struct i915_power_well hsw_power_wells[] = { { .name = "always-on", .always_on = 1, - .domains = HSW_ALWAYS_ON_POWER_DOMAINS, + .domains = POWER_DOMAIN_MASK, .ops = &i9xx_always_on_power_well_ops, }, { @@ -1760,7 +1794,7 @@ static struct i915_power_well bdw_power_wells[] = { { .name = "always-on", .always_on = 1, - .domains = BDW_ALWAYS_ON_POWER_DOMAINS, + .domains = POWER_DOMAIN_MASK, .ops = &i9xx_always_on_power_well_ops, }, { @@ -1795,7 +1829,7 @@ static struct i915_power_well vlv_power_wells[] = { { .name = "always-on", .always_on = 1, - .domains = VLV_ALWAYS_ON_POWER_DOMAINS, + .domains = POWER_DOMAIN_MASK, .ops = &i9xx_always_on_power_well_ops, .data = PUNIT_POWER_WELL_ALWAYS_ON, }, @@ -1853,7 +1887,7 @@ static struct i915_power_well chv_power_wells[] = { { .name = "always-on", .always_on = 1, - .domains = VLV_ALWAYS_ON_POWER_DOMAINS, + .domains = POWER_DOMAIN_MASK, .ops = &i9xx_always_on_power_well_ops, }, { @@ -1863,7 +1897,7 @@ static struct i915_power_well chv_power_wells[] = { * power wells don't actually exist. Pipe A power well is * required for any pipe to work. */ - .domains = VLV_DISPLAY_POWER_DOMAINS, + .domains = CHV_DISPLAY_POWER_DOMAINS, .data = PIPE_A, .ops = &chv_pipe_power_well_ops, }, @@ -1897,7 +1931,7 @@ static struct i915_power_well skl_power_wells[] = { { .name = "always-on", .always_on = 1, - .domains = SKL_DISPLAY_ALWAYS_ON_POWER_DOMAINS, + .domains = POWER_DOMAIN_MASK, .ops = &i9xx_always_on_power_well_ops, .data = SKL_DISP_PW_ALWAYS_ON, }, @@ -1953,44 +1987,16 @@ static struct i915_power_well skl_power_wells[] = { }, }; -void skl_pw1_misc_io_init(struct drm_i915_private *dev_priv) -{ - struct i915_power_well *well; - - if (!(IS_SKYLAKE(dev_priv) || IS_KABYLAKE(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) || IS_KABYLAKE(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", .always_on = 1, - .domains = BXT_DISPLAY_ALWAYS_ON_POWER_DOMAINS, + .domains = POWER_DOMAIN_MASK, .ops = &i9xx_always_on_power_well_ops, }, { .name = "power well 1", - .domains = BXT_DISPLAY_POWERWELL_1_POWER_DOMAINS, + .domains = 0, .ops = &skl_power_well_ops, .data = SKL_DISP_PW_1, }, @@ -2015,12 +2021,56 @@ sanitize_disable_power_well_option(const struct drm_i915_private *dev_priv, if (disable_power_well >= 0) return !!disable_power_well; - if (IS_BROXTON(dev_priv)) { - DRM_DEBUG_KMS("Disabling display power well support\n"); - return 0; + return 1; +} + +static uint32_t get_allowed_dc_mask(const struct drm_i915_private *dev_priv, + int enable_dc) +{ + uint32_t mask; + int requested_dc; + int max_dc; + + if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) { + max_dc = 2; + mask = 0; + } else if (IS_BROXTON(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 { + max_dc = 0; + mask = 0; } - return 1; + if (!i915.disable_power_well) + max_dc = 0; + + if (enable_dc >= 0 && enable_dc <= max_dc) { + requested_dc = enable_dc; + } else if (enable_dc == -1) { + requested_dc = max_dc; + } else if (enable_dc > max_dc && enable_dc <= 2) { + DRM_DEBUG_KMS("Adjusting requested max DC state (%d->%d)\n", + enable_dc, max_dc); + requested_dc = max_dc; + } else { + DRM_ERROR("Unexpected value for enable_dc (%d)\n", enable_dc); + requested_dc = max_dc; + } + + if (requested_dc > 1) + mask |= DC_STATE_EN_UPTO_DC6; + if (requested_dc > 0) + mask |= DC_STATE_EN_UPTO_DC5; + + DRM_DEBUG_KMS("Allowed DC state mask %02x\n", mask); + + return mask; } #define set_power_wells(power_domains, __power_wells) ({ \ @@ -2041,6 +2091,8 @@ int intel_power_domains_init(struct drm_i915_private *dev_priv) i915.disable_power_well = sanitize_disable_power_well_option(dev_priv, i915.disable_power_well); + dev_priv->csr.allowed_dc_mask = get_allowed_dc_mask(dev_priv, + i915.enable_dc); BUILD_BUG_ON(POWER_DOMAIN_NUM > 31); @@ -2050,17 +2102,17 @@ int intel_power_domains_init(struct drm_i915_private *dev_priv) * The enabling order will be from lower to higher indexed wells, * the disabling order is reversed. */ - if (IS_HASWELL(dev_priv->dev)) { + if (IS_HASWELL(dev_priv)) { set_power_wells(power_domains, hsw_power_wells); - } else if (IS_BROADWELL(dev_priv->dev)) { + } else if (IS_BROADWELL(dev_priv)) { set_power_wells(power_domains, bdw_power_wells); - } else if (IS_SKYLAKE(dev_priv->dev) || IS_KABYLAKE(dev_priv->dev)) { + } else if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) { set_power_wells(power_domains, skl_power_wells); - } else if (IS_BROXTON(dev_priv->dev)) { + } else if (IS_BROXTON(dev_priv)) { set_power_wells(power_domains, bxt_power_wells); - } else if (IS_CHERRYVIEW(dev_priv->dev)) { + } else if (IS_CHERRYVIEW(dev_priv)) { set_power_wells(power_domains, chv_power_wells); - } else if (IS_VALLEYVIEW(dev_priv->dev)) { + } else if (IS_VALLEYVIEW(dev_priv)) { set_power_wells(power_domains, vlv_power_wells); } else { set_power_wells(power_domains, i9xx_always_on_power_well); @@ -2120,9 +2172,10 @@ static void intel_power_domains_sync_hw(struct drm_i915_private *dev_priv) } static void skl_display_core_init(struct drm_i915_private *dev_priv, - bool resume) + 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); @@ -2133,7 +2186,13 @@ static void skl_display_core_init(struct drm_i915_private *dev_priv, /* enable PG1 and Misc I/O */ mutex_lock(&power_domains->lock); - skl_pw1_misc_io_init(dev_priv); + + 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); + mutex_unlock(&power_domains->lock); if (!resume) @@ -2141,13 +2200,14 @@ static void skl_display_core_init(struct drm_i915_private *dev_priv, skl_init_cdclk(dev_priv); - if (dev_priv->csr.dmc_payload && intel_csr_load_program(dev_priv)) - gen9_set_dc_state_debugmask(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; + struct i915_power_well *well; gen9_set_dc_state(dev_priv, DC_STATE_DISABLE); @@ -2155,8 +2215,73 @@ static void skl_display_core_uninit(struct drm_i915_private *dev_priv) /* The spec doesn't call for removing the reset handshake flag */ /* disable PG1 and Misc I/O */ + + mutex_lock(&power_domains->lock); + + well = lookup_power_well(dev_priv, SKL_DISP_PW_MISC_IO); + intel_power_well_disable(dev_priv, well); + + well = lookup_power_well(dev_priv, SKL_DISP_PW_1); + intel_power_well_disable(dev_priv, well); + + mutex_unlock(&power_domains->lock); +} + +void bxt_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); + + /* + * NDE_RSTWRN_OPT RST PCH Handshake En must always be 0b on BXT + * or else the reset will hang because there is no PCH to respond. + * 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); + + /* Enable PG1 */ + mutex_lock(&power_domains->lock); + + well = lookup_power_well(dev_priv, SKL_DISP_PW_1); + intel_power_well_enable(dev_priv, well); + + mutex_unlock(&power_domains->lock); + + broxton_init_cdclk(dev_priv); + broxton_ddi_phy_init(dev_priv); + + broxton_cdclk_verify_state(dev_priv); + broxton_ddi_phy_verify_state(dev_priv); + + if (resume && dev_priv->csr.dmc_payload) + intel_csr_load_program(dev_priv); +} + +void bxt_display_core_uninit(struct drm_i915_private *dev_priv) +{ + struct i915_power_domains *power_domains = &dev_priv->power_domains; + struct i915_power_well *well; + + gen9_set_dc_state(dev_priv, DC_STATE_DISABLE); + + broxton_ddi_phy_uninit(dev_priv); + broxton_uninit_cdclk(dev_priv); + + /* The spec doesn't call for removing the reset handshake flag */ + + /* Disable PG1 */ mutex_lock(&power_domains->lock); - skl_pw1_misc_io_fini(dev_priv); + + well = lookup_power_well(dev_priv, SKL_DISP_PW_1); + intel_power_well_disable(dev_priv, well); + mutex_unlock(&power_domains->lock); } @@ -2291,6 +2416,8 @@ void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume) if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) { skl_display_core_init(dev_priv, resume); + } else if (IS_BROXTON(dev)) { + bxt_display_core_init(dev_priv, resume); } else if (IS_CHERRYVIEW(dev)) { mutex_lock(&power_domains->lock); chv_phy_control_init(dev_priv); @@ -2328,6 +2455,8 @@ void intel_power_domains_suspend(struct drm_i915_private *dev_priv) if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) skl_display_core_uninit(dev_priv); + else if (IS_BROXTON(dev_priv)) + bxt_display_core_uninit(dev_priv); } /** |