diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display_power.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_power.c | 136 |
1 files changed, 130 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index 1672604f9ef7..05babdcf5f2e 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -15,6 +15,7 @@ #include "intel_dpio_phy.h" #include "intel_dpll.h" #include "intel_hotplug.h" +#include "intel_pch_refclk.h" #include "intel_pcode.h" #include "intel_pm.h" #include "intel_pps.h" @@ -23,6 +24,98 @@ #include "intel_vga.h" #include "vlv_sideband.h" +struct i915_power_well_ops { + /* + * Synchronize the well's hw state to match the current sw state, for + * example enable/disable it based on the current refcount. Called + * during driver init and resume time, possibly after first calling + * the enable/disable handlers. + */ + void (*sync_hw)(struct drm_i915_private *dev_priv, + struct i915_power_well *power_well); + /* + * Enable the well and resources that depend on it (for example + * interrupts located on the well). Called after the 0->1 refcount + * transition. + */ + void (*enable)(struct drm_i915_private *dev_priv, + struct i915_power_well *power_well); + /* + * Disable the well and resources that depend on it. Called after + * the 1->0 refcount transition. + */ + void (*disable)(struct drm_i915_private *dev_priv, + struct i915_power_well *power_well); + /* Returns the hw enabled state. */ + bool (*is_enabled)(struct drm_i915_private *dev_priv, + struct i915_power_well *power_well); +}; + +struct i915_power_well_regs { + i915_reg_t bios; + i915_reg_t driver; + i915_reg_t kvmr; + i915_reg_t debug; +}; + +/* Power well structure for haswell */ +struct i915_power_well_desc { + const char *name; + bool always_on; + u64 domains; + /* unique identifier for this power well */ + enum i915_power_well_id id; + /* + * Arbitraty data associated with this power well. Platform and power + * well specific. + */ + union { + struct { + /* + * request/status flag index in the PUNIT power well + * control/status registers. + */ + u8 idx; + } vlv; + struct { + enum dpio_phy phy; + } bxt; + struct { + const struct i915_power_well_regs *regs; + /* + * request/status flag index in the power well + * constrol/status registers. + */ + u8 idx; + /* Mask of pipes whose IRQ logic is backed by the pw */ + u8 irq_pipe_mask; + /* + * Instead of waiting for the status bit to ack enables, + * just wait a specific amount of time and then consider + * the well enabled. + */ + u16 fixed_enable_delay; + /* The pw is backing the VGA functionality */ + bool has_vga:1; + bool has_fuses:1; + /* + * The pw is for an ICL+ TypeC PHY port in + * Thunderbolt mode. + */ + bool is_tc_tbt:1; + } hsw; + }; + const struct i915_power_well_ops *ops; +}; + +struct i915_power_well { + const struct i915_power_well_desc *desc; + /* power well enable/disable usage count */ + int count; + /* cached hw enabled state */ + bool hw_enabled; +}; + bool intel_display_power_well_is_enabled(struct drm_i915_private *dev_priv, enum i915_power_well_id power_well_id); @@ -154,8 +247,8 @@ intel_display_power_domain_str(enum intel_display_power_domain domain) return "MODESET"; case POWER_DOMAIN_GT_IRQ: return "GT_IRQ"; - case POWER_DOMAIN_DPLL_DC_OFF: - return "DPLL_DC_OFF"; + case POWER_DOMAIN_DC_OFF: + return "DC_OFF"; case POWER_DOMAIN_TC_COLD_OFF: return "TC_COLD_OFF"; default: @@ -434,6 +527,11 @@ static void hsw_power_well_enable(struct drm_i915_private *dev_priv, pg = DISPLAY_VER(dev_priv) >= 11 ? ICL_PW_CTL_IDX_TO_PG(pw_idx) : SKL_PW_CTL_IDX_TO_PG(pw_idx); + + /* Wa_16013190616:adlp */ + if (IS_ALDERLAKE_P(dev_priv) && pg == SKL_PG1) + intel_de_rmw(dev_priv, GEN8_CHICKEN_DCPR_1, 0, DISABLE_FLR_SRC); + /* * For PW1 we have to wait both for the PW0/PG0 fuse state * before enabling the power well and PW1/PG1's own fuse @@ -894,7 +992,7 @@ static u32 sanitize_target_dc_state(struct drm_i915_private *dev_priv, u32 target_dc_state) { - u32 states[] = { + static const u32 states[] = { DC_STATE_EN_UPTO_DC6, DC_STATE_EN_UPTO_DC5, DC_STATE_EN_DC3CO, @@ -2802,7 +2900,7 @@ intel_display_power_put_mask_in_set(struct drm_i915_private *i915, ICL_PW_2_POWER_DOMAINS | \ BIT_ULL(POWER_DOMAIN_MODESET) | \ BIT_ULL(POWER_DOMAIN_AUX_A) | \ - BIT_ULL(POWER_DOMAIN_DPLL_DC_OFF) | \ + BIT_ULL(POWER_DOMAIN_DC_OFF) | \ BIT_ULL(POWER_DOMAIN_INIT)) #define ICL_DDI_IO_A_POWER_DOMAINS ( \ @@ -3105,6 +3203,7 @@ intel_display_power_put_mask_in_set(struct drm_i915_private *i915, BIT_ULL(POWER_DOMAIN_MODESET) | \ BIT_ULL(POWER_DOMAIN_AUX_A) | \ BIT_ULL(POWER_DOMAIN_AUX_B) | \ + BIT_ULL(POWER_DOMAIN_PORT_DSI) | \ BIT_ULL(POWER_DOMAIN_INIT)) #define XELPD_AUX_IO_D_XELPD_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_D_XELPD) @@ -5271,7 +5370,7 @@ static void gen12_dbuf_slices_config(struct drm_i915_private *dev_priv) static void icl_mbus_init(struct drm_i915_private *dev_priv) { - unsigned long abox_regs = INTEL_INFO(dev_priv)->abox_mask; + unsigned long abox_regs = INTEL_INFO(dev_priv)->display.abox_mask; u32 mask, val, i; if (IS_ALDERLAKE_P(dev_priv)) @@ -5731,7 +5830,7 @@ static void tgl_bw_buddy_init(struct drm_i915_private *dev_priv) enum intel_dram_type type = dev_priv->dram_info.type; u8 num_channels = dev_priv->dram_info.num_channels; const struct buddy_page_mask *table; - unsigned long abox_mask = INTEL_INFO(dev_priv)->abox_mask; + unsigned long abox_mask = INTEL_INFO(dev_priv)->display.abox_mask; int config, i; /* BW_BUDDY registers are not used on dgpu's beyond DG1 */ @@ -6390,3 +6489,28 @@ void intel_display_power_resume(struct drm_i915_private *i915) hsw_disable_pc8(i915); } } + +void intel_display_power_debug(struct drm_i915_private *i915, struct seq_file *m) +{ + struct i915_power_domains *power_domains = &i915->power_domains; + int i; + + mutex_lock(&power_domains->lock); + + seq_printf(m, "%-25s %s\n", "Power well/domain", "Use count"); + for (i = 0; i < power_domains->power_well_count; i++) { + struct i915_power_well *power_well; + enum intel_display_power_domain power_domain; + + power_well = &power_domains->power_wells[i]; + seq_printf(m, "%-25s %d\n", power_well->desc->name, + power_well->count); + + for_each_power_domain(power_domain, power_well->desc->domains) + seq_printf(m, " %-23s %d\n", + intel_display_power_domain_str(power_domain), + power_domains->domain_use_count[power_domain]); + } + + mutex_unlock(&power_domains->lock); +} |