diff -Nur linux-5.8.0-18.19/drivers/gpu/drm/i915/display/intel_ddi.c linux-5.8.0-19.20/drivers/gpu/drm/i915/display/intel_ddi.c --- linux-5.8.0-18.19/drivers/gpu/drm/i915/display/intel_ddi.c 2020-08-03 05:21:45.000000000 +0800 +++ linux-5.8.0-19.20/drivers/gpu/drm/i915/display/intel_ddi.c 2020-11-04 17:05:28.022816046 +0800 @@ -4155,11 +4155,6 @@ if (drm_WARN_ON(&dev_priv->drm, transcoder_is_dsi(cpu_transcoder))) return; - if (INTEL_GEN(dev_priv) >= 12) { - intel_dp->regs.dp_tp_ctl = TGL_DP_TP_CTL(cpu_transcoder); - intel_dp->regs.dp_tp_status = TGL_DP_TP_STATUS(cpu_transcoder); - } - intel_dsc_get_config(encoder, pipe_config); temp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder)); @@ -4261,6 +4256,16 @@ break; } + if (INTEL_GEN(dev_priv) >= 12) { + enum transcoder transcoder = + intel_dp_mst_is_slave_trans(pipe_config) ? + pipe_config->mst_master_transcoder : + pipe_config->cpu_transcoder; + + intel_dp->regs.dp_tp_ctl = TGL_DP_TP_CTL(transcoder); + intel_dp->regs.dp_tp_status = TGL_DP_TP_STATUS(transcoder); + } + pipe_config->has_audio = intel_ddi_is_audio_enabled(dev_priv, cpu_transcoder); diff -Nur linux-5.8.0-18.19/drivers/gpu/drm/i915/display/intel_dpll_mgr.c linux-5.8.0-19.20/drivers/gpu/drm/i915/display/intel_dpll_mgr.c --- linux-5.8.0-18.19/drivers/gpu/drm/i915/display/intel_dpll_mgr.c 2020-08-03 05:21:45.000000000 +0800 +++ linux-5.8.0-19.20/drivers/gpu/drm/i915/display/intel_dpll_mgr.c 2020-11-04 17:05:28.022816046 +0800 @@ -2934,6 +2934,15 @@ static const struct skl_wrpll_params tgl_tbt_pll_24MHz_values = { .dco_integer = 0x43, .dco_fraction = 0x4000, /* the following params are unused */ +}; + +/* + * Display WA #22010492432: tgl + * Divide the nominal .dco_fraction value by 2. + */ +static const struct skl_wrpll_params tgl_tbt_pll_38_4MHz_values = { + .dco_integer = 0x54, .dco_fraction = 0x1800, + /* the following params are unused */ .pdiv = 0, .kdiv = 0, .qdiv_mode = 0, .qdiv_ratio = 0, }; @@ -2970,12 +2979,14 @@ MISSING_CASE(dev_priv->dpll.ref_clks.nssc); /* fall-through */ case 19200: - case 38400: *pll_params = tgl_tbt_pll_19_2MHz_values; break; case 24000: *pll_params = tgl_tbt_pll_24MHz_values; break; + case 38400: + *pll_params = tgl_tbt_pll_38_4MHz_values; + break; } } else { switch (dev_priv->dpll.ref_clks.nssc) { diff -Nur linux-5.8.0-18.19/drivers/gpu/drm/i915/display/intel_hdcp.c linux-5.8.0-19.20/drivers/gpu/drm/i915/display/intel_hdcp.c --- linux-5.8.0-18.19/drivers/gpu/drm/i915/display/intel_hdcp.c 2020-08-03 05:21:45.000000000 +0800 +++ linux-5.8.0-19.20/drivers/gpu/drm/i915/display/intel_hdcp.c 2020-11-04 17:05:28.022816046 +0800 @@ -336,8 +336,10 @@ /* Fill up the empty slots in sha_text and write it out */ sha_empty = sizeof(sha_text) - sha_leftovers; - for (j = 0; j < sha_empty; j++) - sha_text |= ksv[j] << ((sizeof(sha_text) - j - 1) * 8); + for (j = 0; j < sha_empty; j++) { + u8 off = ((sizeof(sha_text) - j - 1 - sha_leftovers) * 8); + sha_text |= ksv[j] << off; + } ret = intel_write_sha_text(dev_priv, sha_text); if (ret < 0) @@ -435,7 +437,7 @@ /* Write 32 bits of text */ intel_de_write(dev_priv, HDCP_REP_CTL, rep_ctl | HDCP_SHA1_TEXT_32); - sha_text |= bstatus[0] << 24 | bstatus[1] << 16; + sha_text |= bstatus[0] << 8 | bstatus[1]; ret = intel_write_sha_text(dev_priv, sha_text); if (ret < 0) return ret; @@ -450,17 +452,29 @@ return ret; sha_idx += sizeof(sha_text); } + + /* + * Terminate the SHA-1 stream by hand. For the other leftover + * cases this is appended by the hardware. + */ + intel_de_write(dev_priv, HDCP_REP_CTL, + rep_ctl | HDCP_SHA1_TEXT_32); + sha_text = DRM_HDCP_SHA1_TERMINATOR << 24; + ret = intel_write_sha_text(dev_priv, sha_text); + if (ret < 0) + return ret; + sha_idx += sizeof(sha_text); } else if (sha_leftovers == 3) { - /* Write 32 bits of text */ + /* Write 32 bits of text (filled from LSB) */ intel_de_write(dev_priv, HDCP_REP_CTL, rep_ctl | HDCP_SHA1_TEXT_32); - sha_text |= bstatus[0] << 24; + sha_text |= bstatus[0]; ret = intel_write_sha_text(dev_priv, sha_text); if (ret < 0) return ret; sha_idx += sizeof(sha_text); - /* Write 8 bits of text, 24 bits of M0 */ + /* Write 8 bits of text (filled from LSB), 24 bits of M0 */ intel_de_write(dev_priv, HDCP_REP_CTL, rep_ctl | HDCP_SHA1_TEXT_8); ret = intel_write_sha_text(dev_priv, bstatus[1]); diff -Nur linux-5.8.0-18.19/drivers/gpu/drm/i915/i915_cmd_parser.c linux-5.8.0-19.20/drivers/gpu/drm/i915/i915_cmd_parser.c --- linux-5.8.0-18.19/drivers/gpu/drm/i915/i915_cmd_parser.c 2020-08-03 05:21:45.000000000 +0800 +++ linux-5.8.0-19.20/drivers/gpu/drm/i915/i915_cmd_parser.c 2020-11-04 17:05:28.026816028 +0800 @@ -1204,6 +1204,12 @@ return dst; } +static inline bool cmd_desc_is(const struct drm_i915_cmd_descriptor * const desc, + const u32 cmd) +{ + return desc->cmd.value == (cmd & desc->cmd.mask); +} + static bool check_cmd(const struct intel_engine_cs *engine, const struct drm_i915_cmd_descriptor *desc, const u32 *cmd, u32 length) @@ -1242,19 +1248,19 @@ * allowed mask/value pair given in the whitelist entry. */ if (reg->mask) { - if (desc->cmd.value == MI_LOAD_REGISTER_MEM) { + if (cmd_desc_is(desc, MI_LOAD_REGISTER_MEM)) { DRM_DEBUG("CMD: Rejected LRM to masked register 0x%08X\n", reg_addr); return false; } - if (desc->cmd.value == MI_LOAD_REGISTER_REG) { + if (cmd_desc_is(desc, MI_LOAD_REGISTER_REG)) { DRM_DEBUG("CMD: Rejected LRR to masked register 0x%08X\n", reg_addr); return false; } - if (desc->cmd.value == MI_LOAD_REGISTER_IMM(1) && + if (cmd_desc_is(desc, MI_LOAD_REGISTER_IMM(1)) && (offset + 2 > length || (cmd[offset + 1] & reg->mask) != reg->value)) { DRM_DEBUG("CMD: Rejected LRI to masked register 0x%08X\n", @@ -1478,7 +1484,7 @@ break; } - if (desc->cmd.value == MI_BATCH_BUFFER_START) { + if (cmd_desc_is(desc, MI_BATCH_BUFFER_START)) { ret = check_bbstart(cmd, offset, length, batch_length, batch_addr, shadow_addr, jump_whitelist);