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 | 81 |
1 files changed, 65 insertions, 16 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index 12ba74788cce..21561acfa3ac 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -418,7 +418,8 @@ icl_combo_phy_aux_power_well_enable(struct drm_i915_private *dev_priv, int pw_idx = power_well->desc->hsw.idx; enum phy phy = ICL_AUX_PW_TO_PHY(pw_idx); u32 val; - int wa_idx_max; + + WARN_ON(!IS_ICELAKE(dev_priv)); val = I915_READ(regs->driver); I915_WRITE(regs->driver, val | HSW_PWR_WELL_CTL_REQ(pw_idx)); @@ -430,14 +431,8 @@ icl_combo_phy_aux_power_well_enable(struct drm_i915_private *dev_priv, hsw_wait_for_power_well_enable(dev_priv, power_well); - /* Display WA #1178: icl, tgl */ - if (IS_TIGERLAKE(dev_priv)) - wa_idx_max = ICL_PW_CTL_IDX_AUX_C; - else - wa_idx_max = ICL_PW_CTL_IDX_AUX_B; - - if (!IS_ELKHARTLAKE(dev_priv) && - pw_idx >= ICL_PW_CTL_IDX_AUX_A && pw_idx <= wa_idx_max && + /* Display WA #1178: icl */ + if (pw_idx >= ICL_PW_CTL_IDX_AUX_A && pw_idx <= ICL_PW_CTL_IDX_AUX_B && !intel_bios_is_port_edp(dev_priv, (enum port)phy)) { val = I915_READ(ICL_AUX_ANAOVRD1(pw_idx)); val |= ICL_AUX_ANAOVRD1_ENABLE | ICL_AUX_ANAOVRD1_LDO_BYPASS; @@ -454,10 +449,10 @@ icl_combo_phy_aux_power_well_disable(struct drm_i915_private *dev_priv, enum phy phy = ICL_AUX_PW_TO_PHY(pw_idx); u32 val; - if (INTEL_GEN(dev_priv) < 12) { - val = I915_READ(ICL_PORT_CL_DW12(phy)); - I915_WRITE(ICL_PORT_CL_DW12(phy), val & ~ICL_LANE_ENABLE_AUX); - } + WARN_ON(!IS_ICELAKE(dev_priv)); + + val = I915_READ(ICL_PORT_CL_DW12(phy)); + I915_WRITE(ICL_PORT_CL_DW12(phy), val & ~ICL_LANE_ENABLE_AUX); val = I915_READ(regs->driver); I915_WRITE(regs->driver, val & ~HSW_PWR_WELL_CTL_REQ(pw_idx)); @@ -519,7 +514,7 @@ static void icl_tc_port_assert_ref_held(struct drm_i915_private *dev_priv, if (encoder->type == INTEL_OUTPUT_DP_MST) continue; - dig_port = enc_to_dig_port(&encoder->base); + dig_port = enc_to_dig_port(encoder); if (WARN_ON(!dig_port)) continue; @@ -1669,8 +1664,8 @@ void chv_phy_powergate_lanes(struct intel_encoder *encoder, { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct i915_power_domains *power_domains = &dev_priv->power_domains; - enum dpio_phy phy = vlv_dport_to_phy(enc_to_dig_port(&encoder->base)); - enum dpio_channel ch = vlv_dport_to_channel(enc_to_dig_port(&encoder->base)); + enum dpio_phy phy = vlv_dport_to_phy(enc_to_dig_port(encoder)); + enum dpio_channel ch = vlv_dport_to_channel(enc_to_dig_port(encoder)); mutex_lock(&power_domains->lock); @@ -4928,6 +4923,56 @@ static void cnl_display_core_uninit(struct drm_i915_private *dev_priv) intel_combo_phy_uninit(dev_priv); } +struct buddy_page_mask { + u32 page_mask; + u8 type; + u8 num_channels; +}; + +static const struct buddy_page_mask tgl_buddy_page_masks[] = { + { .num_channels = 1, .type = INTEL_DRAM_LPDDR4, .page_mask = 0xE }, + { .num_channels = 1, .type = INTEL_DRAM_DDR4, .page_mask = 0xF }, + { .num_channels = 2, .type = INTEL_DRAM_LPDDR4, .page_mask = 0x1C }, + { .num_channels = 2, .type = INTEL_DRAM_DDR4, .page_mask = 0x1F }, + {} +}; + +static const struct buddy_page_mask wa_1409767108_buddy_page_masks[] = { + { .num_channels = 1, .type = INTEL_DRAM_LPDDR4, .page_mask = 0x1 }, + { .num_channels = 1, .type = INTEL_DRAM_DDR4, .page_mask = 0x1 }, + { .num_channels = 2, .type = INTEL_DRAM_LPDDR4, .page_mask = 0x3 }, + { .num_channels = 2, .type = INTEL_DRAM_DDR4, .page_mask = 0x3 }, + {} +}; + +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; + int i; + + if (IS_TGL_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_A0)) + /* Wa_1409767108: tgl */ + table = wa_1409767108_buddy_page_masks; + else + table = tgl_buddy_page_masks; + + for (i = 0; table[i].page_mask != 0; i++) + if (table[i].num_channels == num_channels && + table[i].type == type) + break; + + if (table[i].page_mask == 0) { + DRM_DEBUG_DRIVER("Unknown memory configuration; disabling address buddy logic.\n"); + I915_WRITE(BW_BUDDY1_CTL, BW_BUDDY_DISABLE); + I915_WRITE(BW_BUDDY2_CTL, BW_BUDDY_DISABLE); + } else { + I915_WRITE(BW_BUDDY1_PAGE_MASK, table[i].page_mask); + I915_WRITE(BW_BUDDY2_PAGE_MASK, table[i].page_mask); + } +} + static void icl_display_core_init(struct drm_i915_private *dev_priv, bool resume) { @@ -4960,6 +5005,10 @@ static void icl_display_core_init(struct drm_i915_private *dev_priv, /* 6. Setup MBUS. */ icl_mbus_init(dev_priv); + /* 7. Program arbiter BW_BUDDY registers */ + if (INTEL_GEN(dev_priv) >= 12) + tgl_bw_buddy_init(dev_priv); + if (resume && dev_priv->csr.dmc_payload) intel_csr_load_program(dev_priv); } |