diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_runtime_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_runtime_pm.c | 316 |
1 files changed, 308 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index f8a375f8dde6..efe80ed5fd4d 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -494,6 +494,55 @@ static void hsw_set_power_well(struct drm_i915_private *dev_priv, BIT_ULL(POWER_DOMAIN_AUX_A) | \ BIT_ULL(POWER_DOMAIN_INIT)) +#define CNL_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \ + BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \ + BIT_ULL(POWER_DOMAIN_PIPE_B) | \ + BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \ + BIT_ULL(POWER_DOMAIN_PIPE_C) | \ + BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \ + BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \ + BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \ + BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \ + BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \ + BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \ + BIT_ULL(POWER_DOMAIN_PORT_DDI_E_LANES) | \ + BIT_ULL(POWER_DOMAIN_AUX_B) | \ + BIT_ULL(POWER_DOMAIN_AUX_C) | \ + BIT_ULL(POWER_DOMAIN_AUX_D) | \ + BIT_ULL(POWER_DOMAIN_AUDIO) | \ + BIT_ULL(POWER_DOMAIN_VGA) | \ + BIT_ULL(POWER_DOMAIN_INIT)) +#define CNL_DISPLAY_DDI_A_IO_POWER_DOMAINS ( \ + BIT_ULL(POWER_DOMAIN_PORT_DDI_A_IO) | \ + BIT_ULL(POWER_DOMAIN_PORT_DDI_E_IO) | \ + BIT_ULL(POWER_DOMAIN_INIT)) +#define CNL_DISPLAY_DDI_B_IO_POWER_DOMAINS ( \ + BIT_ULL(POWER_DOMAIN_PORT_DDI_B_IO) | \ + BIT_ULL(POWER_DOMAIN_INIT)) +#define CNL_DISPLAY_DDI_C_IO_POWER_DOMAINS ( \ + BIT_ULL(POWER_DOMAIN_PORT_DDI_C_IO) | \ + BIT_ULL(POWER_DOMAIN_INIT)) +#define CNL_DISPLAY_DDI_D_IO_POWER_DOMAINS ( \ + BIT_ULL(POWER_DOMAIN_PORT_DDI_D_IO) | \ + BIT_ULL(POWER_DOMAIN_INIT)) +#define CNL_DISPLAY_AUX_A_POWER_DOMAINS ( \ + BIT_ULL(POWER_DOMAIN_AUX_A) | \ + BIT_ULL(POWER_DOMAIN_INIT)) +#define CNL_DISPLAY_AUX_B_POWER_DOMAINS ( \ + BIT_ULL(POWER_DOMAIN_AUX_B) | \ + BIT_ULL(POWER_DOMAIN_INIT)) +#define CNL_DISPLAY_AUX_C_POWER_DOMAINS ( \ + BIT_ULL(POWER_DOMAIN_AUX_C) | \ + BIT_ULL(POWER_DOMAIN_INIT)) +#define CNL_DISPLAY_AUX_D_POWER_DOMAINS ( \ + BIT_ULL(POWER_DOMAIN_AUX_D) | \ + BIT_ULL(POWER_DOMAIN_INIT)) +#define CNL_DISPLAY_DC_OFF_POWER_DOMAINS ( \ + CNL_DISPLAY_POWERWELL_2_POWER_DOMAINS | \ + BIT_ULL(POWER_DOMAIN_MODESET) | \ + BIT_ULL(POWER_DOMAIN_AUX_A) | \ + BIT_ULL(POWER_DOMAIN_INIT)) + static void assert_can_enable_dc9(struct drm_i915_private *dev_priv) { WARN_ONCE((I915_READ(DC_STATE_EN) & DC_STATE_EN_DC9), @@ -762,13 +811,14 @@ static void skl_set_power_well(struct drm_i915_private *dev_priv, } break; case SKL_DISP_PW_MISC_IO: - case SKL_DISP_PW_DDI_A_E: /* GLK_DISP_PW_DDI_A */ + case SKL_DISP_PW_DDI_A_E: /* GLK_DISP_PW_DDI_A, CNL_DISP_PW_DDI_A */ case SKL_DISP_PW_DDI_B: case SKL_DISP_PW_DDI_C: case SKL_DISP_PW_DDI_D: - case GLK_DISP_PW_AUX_A: - case GLK_DISP_PW_AUX_B: - case GLK_DISP_PW_AUX_C: + case GLK_DISP_PW_AUX_A: /* CNL_DISP_PW_AUX_A */ + case GLK_DISP_PW_AUX_B: /* CNL_DISP_PW_AUX_B */ + case GLK_DISP_PW_AUX_C: /* CNL_DISP_PW_AUX_C */ + case CNL_DISP_PW_AUX_D: break; default: WARN(1, "Unknown power well %lu\n", power_well->id); @@ -803,8 +853,7 @@ static void skl_set_power_well(struct drm_i915_private *dev_priv, DRM_DEBUG_KMS("Disabling %s\n", power_well->name); } - if (IS_GEN9(dev_priv)) - gen9_sanitize_power_well_requests(dev_priv, power_well); + gen9_sanitize_power_well_requests(dev_priv, power_well); } if (wait_for(!!(I915_READ(HSW_PWR_WELL_DRIVER) & state_mask) == enable, @@ -992,6 +1041,38 @@ static bool i9xx_always_on_power_well_enabled(struct drm_i915_private *dev_priv, return true; } +static void i830_pipes_power_well_enable(struct drm_i915_private *dev_priv, + struct i915_power_well *power_well) +{ + if ((I915_READ(PIPECONF(PIPE_A)) & PIPECONF_ENABLE) == 0) + i830_enable_pipe(dev_priv, PIPE_A); + if ((I915_READ(PIPECONF(PIPE_B)) & PIPECONF_ENABLE) == 0) + i830_enable_pipe(dev_priv, PIPE_B); +} + +static void i830_pipes_power_well_disable(struct drm_i915_private *dev_priv, + struct i915_power_well *power_well) +{ + i830_disable_pipe(dev_priv, PIPE_B); + i830_disable_pipe(dev_priv, PIPE_A); +} + +static bool i830_pipes_power_well_enabled(struct drm_i915_private *dev_priv, + struct i915_power_well *power_well) +{ + return I915_READ(PIPECONF(PIPE_A)) & PIPECONF_ENABLE && + I915_READ(PIPECONF(PIPE_B)) & PIPECONF_ENABLE; +} + +static void i830_pipes_power_well_sync_hw(struct drm_i915_private *dev_priv, + struct i915_power_well *power_well) +{ + if (power_well->count > 0) + i830_pipes_power_well_enable(dev_priv, power_well); + else + i830_pipes_power_well_disable(dev_priv, power_well); +} + static void vlv_set_power_well(struct drm_i915_private *dev_priv, struct i915_power_well *power_well, bool enable) { @@ -1880,6 +1961,15 @@ void intel_display_power_put(struct drm_i915_private *dev_priv, BIT_ULL(POWER_DOMAIN_AUX_D) | \ BIT_ULL(POWER_DOMAIN_INIT)) +#define I830_PIPES_POWER_DOMAINS ( \ + BIT_ULL(POWER_DOMAIN_PIPE_A) | \ + BIT_ULL(POWER_DOMAIN_PIPE_B) | \ + BIT_ULL(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \ + BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \ + BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \ + BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \ + BIT_ULL(POWER_DOMAIN_INIT)) + static const struct i915_power_well_ops i9xx_always_on_power_well_ops = { .sync_hw = i9xx_power_well_sync_hw_noop, .enable = i9xx_always_on_power_well_noop, @@ -1910,6 +2000,27 @@ static struct i915_power_well i9xx_always_on_power_well[] = { }, }; +static const struct i915_power_well_ops i830_pipes_power_well_ops = { + .sync_hw = i830_pipes_power_well_sync_hw, + .enable = i830_pipes_power_well_enable, + .disable = i830_pipes_power_well_disable, + .is_enabled = i830_pipes_power_well_enabled, +}; + +static struct i915_power_well i830_power_wells[] = { + { + .name = "always-on", + .always_on = 1, + .domains = POWER_DOMAIN_MASK, + .ops = &i9xx_always_on_power_well_ops, + }, + { + .name = "pipes", + .domains = I830_PIPES_POWER_DOMAINS, + .ops = &i830_pipes_power_well_ops, + }, +}; + static const struct i915_power_well_ops hsw_power_well_ops = { .sync_hw = hsw_power_well_sync_hw, .enable = hsw_power_well_enable, @@ -2275,6 +2386,82 @@ static struct i915_power_well glk_power_wells[] = { }, }; +static struct i915_power_well cnl_power_wells[] = { + { + .name = "always-on", + .always_on = 1, + .domains = POWER_DOMAIN_MASK, + .ops = &i9xx_always_on_power_well_ops, + }, + { + .name = "power well 1", + /* Handled by the DMC firmware */ + .domains = 0, + .ops = &skl_power_well_ops, + .id = SKL_DISP_PW_1, + }, + { + .name = "AUX A", + .domains = CNL_DISPLAY_AUX_A_POWER_DOMAINS, + .ops = &skl_power_well_ops, + .id = CNL_DISP_PW_AUX_A, + }, + { + .name = "AUX B", + .domains = CNL_DISPLAY_AUX_B_POWER_DOMAINS, + .ops = &skl_power_well_ops, + .id = CNL_DISP_PW_AUX_B, + }, + { + .name = "AUX C", + .domains = CNL_DISPLAY_AUX_C_POWER_DOMAINS, + .ops = &skl_power_well_ops, + .id = CNL_DISP_PW_AUX_C, + }, + { + .name = "AUX D", + .domains = CNL_DISPLAY_AUX_D_POWER_DOMAINS, + .ops = &skl_power_well_ops, + .id = CNL_DISP_PW_AUX_D, + }, + { + .name = "DC off", + .domains = CNL_DISPLAY_DC_OFF_POWER_DOMAINS, + .ops = &gen9_dc_off_power_well_ops, + .id = SKL_DISP_PW_DC_OFF, + }, + { + .name = "power well 2", + .domains = CNL_DISPLAY_POWERWELL_2_POWER_DOMAINS, + .ops = &skl_power_well_ops, + .id = SKL_DISP_PW_2, + }, + { + .name = "DDI A IO power well", + .domains = CNL_DISPLAY_DDI_A_IO_POWER_DOMAINS, + .ops = &skl_power_well_ops, + .id = CNL_DISP_PW_DDI_A, + }, + { + .name = "DDI B IO power well", + .domains = CNL_DISPLAY_DDI_B_IO_POWER_DOMAINS, + .ops = &skl_power_well_ops, + .id = SKL_DISP_PW_DDI_B, + }, + { + .name = "DDI C IO power well", + .domains = CNL_DISPLAY_DDI_C_IO_POWER_DOMAINS, + .ops = &skl_power_well_ops, + .id = SKL_DISP_PW_DDI_C, + }, + { + .name = "DDI D IO power well", + .domains = CNL_DISPLAY_DDI_D_IO_POWER_DOMAINS, + .ops = &skl_power_well_ops, + .id = SKL_DISP_PW_DDI_D, + }, +}; + static int sanitize_disable_power_well_option(const struct drm_i915_private *dev_priv, int disable_power_well) @@ -2369,6 +2556,8 @@ int intel_power_domains_init(struct drm_i915_private *dev_priv) set_power_wells(power_domains, bdw_power_wells); } else if (IS_GEN9_BC(dev_priv)) { set_power_wells(power_domains, skl_power_wells); + } else if (IS_CANNONLAKE(dev_priv)) { + set_power_wells(power_domains, cnl_power_wells); } else if (IS_BROXTON(dev_priv)) { set_power_wells(power_domains, bxt_power_wells); } else if (IS_GEMINILAKE(dev_priv)) { @@ -2377,6 +2566,8 @@ int intel_power_domains_init(struct drm_i915_private *dev_priv) set_power_wells(power_domains, chv_power_wells); } else if (IS_VALLEYVIEW(dev_priv)) { set_power_wells(power_domains, vlv_power_wells); + } else if (IS_I830(dev_priv)) { + set_power_wells(power_domains, i830_power_wells); } else { set_power_wells(power_domains, i9xx_always_on_power_well); } @@ -2569,6 +2760,111 @@ void bxt_display_core_uninit(struct drm_i915_private *dev_priv) mutex_unlock(&power_domains->lock); } +#define CNL_PROCMON_IDX(val) \ + (((val) & (PROCESS_INFO_MASK | VOLTAGE_INFO_MASK)) >> VOLTAGE_INFO_SHIFT) +#define NUM_CNL_PROCMON \ + (CNL_PROCMON_IDX(VOLTAGE_INFO_MASK | PROCESS_INFO_MASK) + 1) + +static const struct cnl_procmon { + u32 dw1, dw9, dw10; +} cnl_procmon_values[NUM_CNL_PROCMON] = { + [CNL_PROCMON_IDX(VOLTAGE_INFO_0_85V | PROCESS_INFO_DOT_0)] = + { .dw1 = 0x00 << 16, .dw9 = 0x62AB67BB, .dw10 = 0x51914F96, }, + [CNL_PROCMON_IDX(VOLTAGE_INFO_0_95V | PROCESS_INFO_DOT_0)] = + { .dw1 = 0x00 << 16, .dw9 = 0x86E172C7, .dw10 = 0x77CA5EAB, }, + [CNL_PROCMON_IDX(VOLTAGE_INFO_0_95V | PROCESS_INFO_DOT_1)] = + { .dw1 = 0x00 << 16, .dw9 = 0x93F87FE1, .dw10 = 0x8AE871C5, }, + [CNL_PROCMON_IDX(VOLTAGE_INFO_1_05V | PROCESS_INFO_DOT_0)] = + { .dw1 = 0x00 << 16, .dw9 = 0x98FA82DD, .dw10 = 0x89E46DC1, }, + [CNL_PROCMON_IDX(VOLTAGE_INFO_1_05V | PROCESS_INFO_DOT_1)] = + { .dw1 = 0x44 << 16, .dw9 = 0x9A00AB25, .dw10 = 0x8AE38FF1, }, +}; + +static void cnl_display_core_init(struct drm_i915_private *dev_priv, bool resume) +{ + struct i915_power_domains *power_domains = &dev_priv->power_domains; + const struct cnl_procmon *procmon; + 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 &= ~COMP_PWR_DOWN; + I915_WRITE(CHICKEN_MISC_2, val); + + val = I915_READ(CNL_PORT_COMP_DW3); + procmon = &cnl_procmon_values[CNL_PROCMON_IDX(val)]; + + WARN_ON(procmon->dw10 == 0); + + val = I915_READ(CNL_PORT_COMP_DW1); + val &= ~((0xff << 16) | 0xff); + val |= procmon->dw1; + I915_WRITE(CNL_PORT_COMP_DW1, val); + + I915_WRITE(CNL_PORT_COMP_DW9, procmon->dw9); + I915_WRITE(CNL_PORT_COMP_DW10, procmon->dw10); + + 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); + + /* 4. Enable Power Well 1 (PG1) and Aux IO Power */ + 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); + + /* 5. Enable CD clock */ + cnl_init_cdclk(dev_priv); + + /* 6. Enable DBUF */ + gen9_dbuf_enable(dev_priv); +} + +#undef CNL_PROCMON_IDX +#undef NUM_CNL_PROCMON + +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); + + /* 1. Disable all display engine functions -> aready done */ + + /* 2. Disable DBUF */ + gen9_dbuf_disable(dev_priv); + + /* 3. Disable CD clock */ + cnl_uninit_cdclk(dev_priv); + + /* 4. Disable Power Well 1 (PG1) and Aux IO Power */ + mutex_lock(&power_domains->lock); + well = lookup_power_well(dev_priv, SKL_DISP_PW_1); + intel_power_well_disable(dev_priv, well); + mutex_unlock(&power_domains->lock); + + /* 5. Disable Comp */ + val = I915_READ(CHICKEN_MISC_2); + val |= COMP_PWR_DOWN; + I915_WRITE(CHICKEN_MISC_2, val); +} + static void chv_phy_control_init(struct drm_i915_private *dev_priv) { struct i915_power_well *cmn_bc = @@ -2701,7 +2997,9 @@ void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume) power_domains->initializing = true; - if (IS_GEN9_BC(dev_priv)) { + if (IS_CANNONLAKE(dev_priv)) { + cnl_display_core_init(dev_priv, resume); + } else if (IS_GEN9_BC(dev_priv)) { skl_display_core_init(dev_priv, resume); } else if (IS_GEN9_LP(dev_priv)) { bxt_display_core_init(dev_priv, resume); @@ -2740,7 +3038,9 @@ void intel_power_domains_suspend(struct drm_i915_private *dev_priv) if (!i915.disable_power_well) intel_display_power_put(dev_priv, POWER_DOMAIN_INIT); - if (IS_GEN9_BC(dev_priv)) + if (IS_CANNONLAKE(dev_priv)) + cnl_display_core_uninit(dev_priv); + else if (IS_GEN9_BC(dev_priv)) skl_display_core_uninit(dev_priv); else if (IS_GEN9_LP(dev_priv)) bxt_display_core_uninit(dev_priv); |