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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:37 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:37 +0000 |
commit | 94ac2ab3fff96814d7460a27a0e9d004abbd4128 (patch) | |
tree | 9a4eb8cc234b540b0f4b93363109cdd37a20540b /drivers/gpu/drm/i915/display/intel_bios.c | |
parent | Adding debian version 6.8.12-1. (diff) | |
download | linux-94ac2ab3fff96814d7460a27a0e9d004abbd4128.tar.xz linux-94ac2ab3fff96814d7460a27a0e9d004abbd4128.zip |
Merging upstream version 6.9.2.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_bios.c')
-rw-r--r-- | drivers/gpu/drm/i915/display/intel_bios.c | 109 |
1 files changed, 72 insertions, 37 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c index c36633d7dd..7d1e443f97 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.c +++ b/drivers/gpu/drm/i915/display/intel_bios.c @@ -1748,7 +1748,8 @@ parse_mipi_config(struct drm_i915_private *i915, /* Find the sequence block and size for the given panel. */ static const u8 * -find_panel_sequence_block(const struct bdb_mipi_sequence *sequence, +find_panel_sequence_block(struct drm_i915_private *i915, + const struct bdb_mipi_sequence *sequence, u16 panel_id, u32 *seq_size) { u32 total = get_blocksize(sequence); @@ -1765,7 +1766,7 @@ find_panel_sequence_block(const struct bdb_mipi_sequence *sequence, for (i = 0; i < MAX_MIPI_CONFIGURATIONS && index < total; i++) { if (index + header_size > total) { - DRM_ERROR("Invalid sequence block (header)\n"); + drm_err(&i915->drm, "Invalid sequence block (header)\n"); return NULL; } @@ -1778,7 +1779,7 @@ find_panel_sequence_block(const struct bdb_mipi_sequence *sequence, index += header_size; if (index + current_size > total) { - DRM_ERROR("Invalid sequence block\n"); + drm_err(&i915->drm, "Invalid sequence block\n"); return NULL; } @@ -1790,12 +1791,13 @@ find_panel_sequence_block(const struct bdb_mipi_sequence *sequence, index += current_size; } - DRM_ERROR("Sequence block detected but no valid configuration\n"); + drm_err(&i915->drm, "Sequence block detected but no valid configuration\n"); return NULL; } -static int goto_next_sequence(const u8 *data, int index, int total) +static int goto_next_sequence(struct drm_i915_private *i915, + const u8 *data, int index, int total) { u16 len; @@ -1825,7 +1827,7 @@ static int goto_next_sequence(const u8 *data, int index, int total) len = *(data + index + 6) + 7; break; default: - DRM_ERROR("Unknown operation byte\n"); + drm_err(&i915->drm, "Unknown operation byte\n"); return 0; } } @@ -1833,7 +1835,8 @@ static int goto_next_sequence(const u8 *data, int index, int total) return 0; } -static int goto_next_sequence_v3(const u8 *data, int index, int total) +static int goto_next_sequence_v3(struct drm_i915_private *i915, + const u8 *data, int index, int total) { int seq_end; u16 len; @@ -1844,7 +1847,7 @@ static int goto_next_sequence_v3(const u8 *data, int index, int total) * checking on the structure. */ if (total < 5) { - DRM_ERROR("Too small sequence size\n"); + drm_err(&i915->drm, "Too small sequence size\n"); return 0; } @@ -1861,7 +1864,7 @@ static int goto_next_sequence_v3(const u8 *data, int index, int total) seq_end = index + size_of_sequence; if (seq_end > total) { - DRM_ERROR("Invalid sequence size\n"); + drm_err(&i915->drm, "Invalid sequence size\n"); return 0; } @@ -1871,7 +1874,7 @@ static int goto_next_sequence_v3(const u8 *data, int index, int total) if (operation_byte == MIPI_SEQ_ELEM_END) { if (index != seq_end) { - DRM_ERROR("Invalid element structure\n"); + drm_err(&i915->drm, "Invalid element structure\n"); return 0; } return index; @@ -1893,8 +1896,8 @@ static int goto_next_sequence_v3(const u8 *data, int index, int total) case MIPI_SEQ_ELEM_PMIC: break; default: - DRM_ERROR("Unknown operation byte %u\n", - operation_byte); + drm_err(&i915->drm, "Unknown operation byte %u\n", + operation_byte); break; } } @@ -2050,7 +2053,7 @@ parse_mipi_sequence(struct drm_i915_private *i915, drm_dbg(&i915->drm, "Found MIPI sequence block v%u\n", sequence->version); - seq_data = find_panel_sequence_block(sequence, panel_type, &seq_size); + seq_data = find_panel_sequence_block(i915, sequence, panel_type, &seq_size); if (!seq_data) return; @@ -2078,9 +2081,9 @@ parse_mipi_sequence(struct drm_i915_private *i915, panel->vbt.dsi.sequence[seq_id] = data + index; if (sequence->version >= 3) - index = goto_next_sequence_v3(data, index, seq_size); + index = goto_next_sequence_v3(i915, data, index, seq_size); else - index = goto_next_sequence(data, index, seq_size); + index = goto_next_sequence(i915, data, index, seq_size); if (!index) { drm_err(&i915->drm, "Invalid sequence %u\n", seq_id); @@ -2155,12 +2158,13 @@ parse_compression_parameters(struct drm_i915_private *i915) } } -static u8 translate_iboost(u8 val) +static u8 translate_iboost(struct drm_i915_private *i915, u8 val) { static const u8 mapping[] = { 1, 3, 7 }; /* See VBT spec */ if (val >= ARRAY_SIZE(mapping)) { - DRM_DEBUG_KMS("Unsupported I_boost value found in VBT (%d), display may not work properly\n", val); + drm_dbg_kms(&i915->drm, + "Unsupported I_boost value found in VBT (%d), display may not work properly\n", val); return 0; } return mapping[val]; @@ -2224,8 +2228,7 @@ static u8 map_ddc_pin(struct drm_i915_private *i915, u8 vbt_pin) if (IS_DGFX(i915)) return vbt_pin; - if (INTEL_PCH_TYPE(i915) >= PCH_LNL || HAS_PCH_MTP(i915) || - IS_ALDERLAKE_P(i915)) { + if (INTEL_PCH_TYPE(i915) >= PCH_MTL || IS_ALDERLAKE_P(i915)) { ddc_pin_map = adlp_ddc_pin_map; n_entries = ARRAY_SIZE(adlp_ddc_pin_map); } else if (IS_ALDERLAKE_S(i915)) { @@ -2918,12 +2921,14 @@ static const struct bdb_header *get_bdb_header(const struct vbt_header *vbt) /** * intel_bios_is_valid_vbt - does the given buffer contain a valid VBT + * @i915: the device * @buf: pointer to a buffer to validate * @size: size of the buffer * * Returns true on valid VBT. */ -bool intel_bios_is_valid_vbt(const void *buf, size_t size) +bool intel_bios_is_valid_vbt(struct drm_i915_private *i915, + const void *buf, size_t size) { const struct vbt_header *vbt = buf; const struct bdb_header *bdb; @@ -2932,17 +2937,17 @@ bool intel_bios_is_valid_vbt(const void *buf, size_t size) return false; if (sizeof(struct vbt_header) > size) { - DRM_DEBUG_DRIVER("VBT header incomplete\n"); + drm_dbg_kms(&i915->drm, "VBT header incomplete\n"); return false; } if (memcmp(vbt->signature, "$VBT", 4)) { - DRM_DEBUG_DRIVER("VBT invalid signature\n"); + drm_dbg_kms(&i915->drm, "VBT invalid signature\n"); return false; } if (vbt->vbt_size > size) { - DRM_DEBUG_DRIVER("VBT incomplete (vbt_size overflows)\n"); + drm_dbg_kms(&i915->drm, "VBT incomplete (vbt_size overflows)\n"); return false; } @@ -2952,13 +2957,13 @@ bool intel_bios_is_valid_vbt(const void *buf, size_t size) vbt->bdb_offset, sizeof(struct bdb_header), size)) { - DRM_DEBUG_DRIVER("BDB header incomplete\n"); + drm_dbg_kms(&i915->drm, "BDB header incomplete\n"); return false; } bdb = get_bdb_header(vbt); if (range_overflows_t(size_t, vbt->bdb_offset, bdb->bdb_size, size)) { - DRM_DEBUG_DRIVER("BDB incomplete\n"); + drm_dbg_kms(&i915->drm, "BDB incomplete\n"); return false; } @@ -3010,7 +3015,7 @@ static struct vbt_header *spi_oprom_get_vbt(struct drm_i915_private *i915) for (count = 0; count < vbt_size; count += 4) *(vbt + store++) = intel_spi_read(&i915->uncore, found + count); - if (!intel_bios_is_valid_vbt(vbt, vbt_size)) + if (!intel_bios_is_valid_vbt(i915, vbt, vbt_size)) goto err_free_vbt; drm_dbg_kms(&i915->drm, "Found valid VBT in SPI flash\n"); @@ -3067,7 +3072,7 @@ static struct vbt_header *oprom_get_vbt(struct drm_i915_private *i915) memcpy_fromio(vbt, p, vbt_size); - if (!intel_bios_is_valid_vbt(vbt, vbt_size)) + if (!intel_bios_is_valid_vbt(i915, vbt, vbt_size)) goto err_free_vbt; pci_unmap_rom(pdev, oprom); @@ -3094,7 +3099,7 @@ err_unmap_oprom: */ void intel_bios_init(struct drm_i915_private *i915) { - const struct vbt_header *vbt = i915->display.opregion.vbt; + const struct vbt_header *vbt; struct vbt_header *oprom_vbt = NULL; const struct bdb_header *bdb; @@ -3109,6 +3114,8 @@ void intel_bios_init(struct drm_i915_private *i915) init_vbt_defaults(i915); + vbt = intel_opregion_get_vbt(i915, NULL); + /* * If the OpRegion does not have VBT, look in SPI flash through MMIO or * PCI mapping @@ -3326,7 +3333,7 @@ bool intel_bios_is_lvds_present(struct drm_i915_private *i915, u8 *i2c_pin) * additional data. Trust that if the VBT was written into * the OpRegion then they have validated the LVDS's existence. */ - if (i915->display.opregion.vbt) + if (intel_opregion_get_vbt(i915, NULL)) return true; } @@ -3420,6 +3427,7 @@ static void fill_dsc(struct intel_crtc_state *crtc_state, struct dsc_compression_parameters_entry *dsc, int dsc_max_bpc) { + struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev); struct drm_dsc_config *vdsc_cfg = &crtc_state->dsc.config; int bpc = 8; @@ -3433,8 +3441,8 @@ static void fill_dsc(struct intel_crtc_state *crtc_state, else if (dsc->support_8bpc && dsc_max_bpc >= 8) bpc = 8; else - DRM_DEBUG_KMS("VBT: Unsupported BPC %d for DCS\n", - dsc_max_bpc); + drm_dbg_kms(&i915->drm, "VBT: Unsupported BPC %d for DCS\n", + dsc_max_bpc); crtc_state->pipe_bpp = bpc * 3; @@ -3454,16 +3462,16 @@ static void fill_dsc(struct intel_crtc_state *crtc_state, } else { /* FIXME */ if (!(dsc->slices_per_line & BIT(0))) - DRM_DEBUG_KMS("VBT: Unsupported DSC slice count for DSI\n"); + drm_dbg_kms(&i915->drm, "VBT: Unsupported DSC slice count for DSI\n"); crtc_state->dsc.slice_count = 1; } if (crtc_state->hw.adjusted_mode.crtc_hdisplay % crtc_state->dsc.slice_count != 0) - DRM_DEBUG_KMS("VBT: DSC hdisplay %d not divisible by slice count %d\n", - crtc_state->hw.adjusted_mode.crtc_hdisplay, - crtc_state->dsc.slice_count); + drm_dbg_kms(&i915->drm, "VBT: DSC hdisplay %d not divisible by slice count %d\n", + crtc_state->hw.adjusted_mode.crtc_hdisplay, + crtc_state->dsc.slice_count); /* * The VBT rc_buffer_block_size and rc_buffer_size definitions @@ -3619,7 +3627,7 @@ int intel_bios_dp_boost_level(const struct intel_bios_encoder_data *devdata) if (!devdata || devdata->i915->display.vbt.version < 196 || !devdata->child.iboost) return 0; - return translate_iboost(devdata->child.dp_iboost_level); + return translate_iboost(devdata->i915, devdata->child.dp_iboost_level); } int intel_bios_hdmi_boost_level(const struct intel_bios_encoder_data *devdata) @@ -3627,7 +3635,7 @@ int intel_bios_hdmi_boost_level(const struct intel_bios_encoder_data *devdata) if (!devdata || devdata->i915->display.vbt.version < 196 || !devdata->child.iboost) return 0; - return translate_iboost(devdata->child.hdmi_iboost_level); + return translate_iboost(devdata->i915, devdata->child.hdmi_iboost_level); } int intel_bios_hdmi_ddc_pin(const struct intel_bios_encoder_data *devdata) @@ -3680,3 +3688,30 @@ void intel_bios_for_each_encoder(struct drm_i915_private *i915, list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) func(i915, devdata); } + +static int intel_bios_vbt_show(struct seq_file *m, void *unused) +{ + struct drm_i915_private *i915 = m->private; + const void *vbt; + size_t vbt_size; + + /* + * FIXME: VBT might originate from other places than opregion, and then + * this would be incorrect. + */ + vbt = intel_opregion_get_vbt(i915, &vbt_size); + if (vbt) + seq_write(m, vbt, vbt_size); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(intel_bios_vbt); + +void intel_bios_debugfs_register(struct drm_i915_private *i915) +{ + struct drm_minor *minor = i915->drm.primary; + + debugfs_create_file("i915_vbt", 0444, minor->debugfs_root, + i915, &intel_bios_vbt_fops); +} |