From 331c201a07261120cceb50ee71736bdc3dd07368 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Fri, 5 Apr 2019 14:00:03 +0300 Subject: drm/i915: extract intel_audio.h from intel_drv.h It used to be handy that we only had a couple of headers, but over time intel_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson Acked-by: Joonas Lahtinen Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/e0284c4d62effa5bad72ce034206c26e3aa02884.1554461791.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_dp.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'drivers/gpu/drm/i915/intel_dp.c') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 72c49070ed14..573cb04e2a56 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -25,22 +25,25 @@ * */ -#include -#include #include -#include +#include #include #include +#include +#include #include + #include #include #include #include #include #include -#include "intel_drv.h" #include + #include "i915_drv.h" +#include "intel_audio.h" +#include "intel_drv.h" #define DP_DPRX_ESI_LEN 14 -- cgit v1.2.3 From fdc24cf30897d8ec96fe5a69fe4ac6c25b23bd8b Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Fri, 5 Apr 2019 14:00:05 +0300 Subject: drm/i915: extract intel_ddi.h from intel_drv.h It used to be handy that we only had a couple of headers, but over time intel_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson Acked-by: Joonas Lahtinen Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/61d159117475a48a5db7bd7d652c198d4fa08d7b.1554461791.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_dp.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/drm/i915/intel_dp.c') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 573cb04e2a56..ca3ed4ae253c 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -43,6 +43,7 @@ #include "i915_drv.h" #include "intel_audio.h" +#include "intel_ddi.h" #include "intel_drv.h" #define DP_DPRX_ESI_LEN 14 -- cgit v1.2.3 From ec7f29ff0d144c45d17d6e7c08f4e575956f9a56 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Fri, 5 Apr 2019 14:00:06 +0300 Subject: drm/i915: extract intel_connector.h from intel_drv.h It used to be handy that we only had a couple of headers, but over time intel_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson Acked-by: Joonas Lahtinen Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/4b8e9d1fa8f0f0420ecc65063bdb7d068c13086e.1554461791.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_dp.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/drm/i915/intel_dp.c') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index ca3ed4ae253c..466e5a6b9513 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -43,6 +43,7 @@ #include "i915_drv.h" #include "intel_audio.h" +#include "intel_connector.h" #include "intel_ddi.h" #include "intel_drv.h" -- cgit v1.2.3 From 55367a275ada04960a385c0371193f2953b870e6 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Fri, 5 Apr 2019 14:00:09 +0300 Subject: drm/i915: extract intel_psr.h from intel_drv.h It used to be handy that we only had a couple of headers, but over time intel_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. v2: Fix checkpatch whitespace complaint Reviewed-by: Chris Wilson Acked-by: Joonas Lahtinen Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/7e776690bf139ccdd0306b30df08dc68e74603de.1554461791.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_dp.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/drm/i915/intel_dp.c') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 466e5a6b9513..00efbb59c422 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -46,6 +46,7 @@ #include "intel_connector.h" #include "intel_ddi.h" #include "intel_drv.h" +#include "intel_psr.h" #define DP_DPRX_ESI_LEN 14 -- cgit v1.2.3 From f3e18947942756d17b02d4f34436f2d6e4a5d68b Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Fri, 5 Apr 2019 14:00:11 +0300 Subject: drm/i915: extract intel_lspcon.h from intel_drv.h It used to be handy that we only had a couple of headers, but over time intel_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson Acked-by: Joonas Lahtinen Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/b01cae3b5307d31c34de2321d6d2913f1cc39a12.1554461791.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_dp.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/drm/i915/intel_dp.c') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 00efbb59c422..2f50a4d81fcd 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -46,6 +46,7 @@ #include "intel_connector.h" #include "intel_ddi.h" #include "intel_drv.h" +#include "intel_lspcon.h" #include "intel_psr.h" #define DP_DPRX_ESI_LEN 14 -- cgit v1.2.3 From 408bd91786665b8cb78540d67dbd148f287a1685 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Fri, 5 Apr 2019 14:00:13 +0300 Subject: drm/i915: extract intel_hdcp.h from intel_drv.h It used to be handy that we only had a couple of headers, but over time intel_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson Acked-by: Joonas Lahtinen Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/8348620b32cb4438ccfb5f7bbe9a18ff6b7c48a0.1554461791.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_dp.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/drm/i915/intel_dp.c') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 2f50a4d81fcd..efc411964bcc 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -46,6 +46,7 @@ #include "intel_connector.h" #include "intel_ddi.h" #include "intel_drv.h" +#include "intel_hdcp.h" #include "intel_lspcon.h" #include "intel_psr.h" -- cgit v1.2.3 From 44c1220a441ca79783c0c541c495c6978448d9f3 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Fri, 5 Apr 2019 14:00:14 +0300 Subject: drm/i915: extract intel_panel.h from intel_drv.h It used to be handy that we only had a couple of headers, but over time intel_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson Acked-by: Joonas Lahtinen Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/c9f02ae09123866bc55269175ab75e844ffbd6ac.1554461791.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_dp.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/drm/i915/intel_dp.c') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index efc411964bcc..02d662ff5df9 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -48,6 +48,7 @@ #include "intel_drv.h" #include "intel_hdcp.h" #include "intel_lspcon.h" +#include "intel_panel.h" #include "intel_psr.h" #define DP_DPRX_ESI_LEN 14 -- cgit v1.2.3 From 27fec1f9734d33539df6c05fceb84fd981792899 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Fri, 5 Apr 2019 14:00:17 +0300 Subject: drm/i915: extract intel_dp.h from intel_drv.h It used to be handy that we only had a couple of headers, but over time intel_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson Acked-by: Joonas Lahtinen Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/f86f9beed730eaad0bdcc18b18817b3d221e16e2.1554461791.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_dp.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/drm/i915/intel_dp.c') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 02d662ff5df9..46d27ed6954b 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -45,6 +45,7 @@ #include "intel_audio.h" #include "intel_connector.h" #include "intel_ddi.h" +#include "intel_dp.h" #include "intel_drv.h" #include "intel_hdcp.h" #include "intel_lspcon.h" -- cgit v1.2.3 From 0550691d58f9ce7e72118916f05f9c510183767f Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Fri, 5 Apr 2019 14:00:18 +0300 Subject: drm/i915: extract intel_hdmi.h from intel_drv.h It used to be handy that we only had a couple of headers, but over time intel_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson Acked-by: Joonas Lahtinen Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/357856c31e309f0af8eed0d800623a5253ff3a37.1554461791.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_dp.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/drm/i915/intel_dp.c') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 46d27ed6954b..a5eeb1b89376 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -48,6 +48,7 @@ #include "intel_dp.h" #include "intel_drv.h" #include "intel_hdcp.h" +#include "intel_hdmi.h" #include "intel_lspcon.h" #include "intel_panel.h" #include "intel_psr.h" -- cgit v1.2.3 From 42406fdc282c7f2447a80063f5030260524f8091 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Fri, 5 Apr 2019 14:00:22 +0300 Subject: drm/i915: extract intel_lvds.h from intel_drv.h It used to be handy that we only had a couple of headers, but over time intel_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson Acked-by: Joonas Lahtinen Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/5d54d02cf7b7bfe3f78ed60d28534c5726371af3.1554461791.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_dp.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/drm/i915/intel_dp.c') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index a5eeb1b89376..c4e36759a756 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -50,6 +50,7 @@ #include "intel_hdcp.h" #include "intel_hdmi.h" #include "intel_lspcon.h" +#include "intel_lvds.h" #include "intel_panel.h" #include "intel_psr.h" -- cgit v1.2.3 From f11cb1c19ad0563b3c1ea5eb16a6bac0e401f428 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Fri, 5 Apr 2019 10:52:20 +0300 Subject: drm/i915/dp: revert back to max link rate and lane count on eDP MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 7769db588384 ("drm/i915/dp: optimize eDP 1.4+ link config fast and narrow") started to optize the eDP 1.4+ link config, both per spec and as preparation for display stream compression support. Sadly, we again face panels that flat out fail with parameters they claim to support. Revert, and go back to the drawing board. v2: Actually revert to max params instead of just wide-and-slow. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109959 Fixes: 7769db588384 ("drm/i915/dp: optimize eDP 1.4+ link config fast and narrow") Cc: Ville Syrjälä Cc: Manasi Navare Cc: Rodrigo Vivi Cc: Matt Atwood Cc: "Lee, Shawn C" Cc: Dave Airlie Cc: intel-gfx@lists.freedesktop.org Cc: # v5.0+ Reviewed-by: Rodrigo Vivi Reviewed-by: Manasi Navare Tested-by: Albert Astals Cid # v5.0 backport Tested-by: Emanuele Panigati # v5.0 backport Tested-by: Matteo Iervasi # v5.0 backport Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20190405075220.9815-1-jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_dp.c | 69 ++++++----------------------------------- 1 file changed, 10 insertions(+), 59 deletions(-) (limited to 'drivers/gpu/drm/i915/intel_dp.c') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index c4e36759a756..0936d08aa982 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1868,42 +1868,6 @@ intel_dp_compute_link_config_wide(struct intel_dp *intel_dp, return -EINVAL; } -/* Optimize link config in order: max bpp, min lanes, min clock */ -static int -intel_dp_compute_link_config_fast(struct intel_dp *intel_dp, - struct intel_crtc_state *pipe_config, - const struct link_config_limits *limits) -{ - struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode; - int bpp, clock, lane_count; - int mode_rate, link_clock, link_avail; - - for (bpp = limits->max_bpp; bpp >= limits->min_bpp; bpp -= 2 * 3) { - mode_rate = intel_dp_link_required(adjusted_mode->crtc_clock, - bpp); - - for (lane_count = limits->min_lane_count; - lane_count <= limits->max_lane_count; - lane_count <<= 1) { - for (clock = limits->min_clock; clock <= limits->max_clock; clock++) { - link_clock = intel_dp->common_rates[clock]; - link_avail = intel_dp_max_data_rate(link_clock, - lane_count); - - if (mode_rate <= link_avail) { - pipe_config->lane_count = lane_count; - pipe_config->pipe_bpp = bpp; - pipe_config->port_clock = link_clock; - - return 0; - } - } - } - } - - return -EINVAL; -} - static int intel_dp_dsc_compute_bpp(struct intel_dp *intel_dp, u8 dsc_max_bpc) { int i, num_bpc; @@ -2040,15 +2004,13 @@ intel_dp_compute_link_config(struct intel_encoder *encoder, limits.min_bpp = 6 * 3; limits.max_bpp = intel_dp_compute_bpp(intel_dp, pipe_config); - if (intel_dp_is_edp(intel_dp) && intel_dp->edp_dpcd[0] < DP_EDP_14) { + if (intel_dp_is_edp(intel_dp)) { /* * Use the maximum clock and number of lanes the eDP panel - * advertizes being capable of. The eDP 1.3 and earlier panels - * are generally designed to support only a single clock and - * lane configuration, and typically these values correspond to - * the native resolution of the panel. With eDP 1.4 rate select - * and DSC, this is decreasingly the case, and we need to be - * able to select less than maximum link config. + * advertizes being capable of. The panels are generally + * designed to support only a single clock and lane + * configuration, and typically these values correspond to the + * native resolution of the panel. */ limits.min_lane_count = limits.max_lane_count; limits.min_clock = limits.max_clock; @@ -2062,22 +2024,11 @@ intel_dp_compute_link_config(struct intel_encoder *encoder, intel_dp->common_rates[limits.max_clock], limits.max_bpp, adjusted_mode->crtc_clock); - if (intel_dp_is_edp(intel_dp)) - /* - * Optimize for fast and narrow. eDP 1.3 section 3.3 and eDP 1.4 - * section A.1: "It is recommended that the minimum number of - * lanes be used, using the minimum link rate allowed for that - * lane configuration." - * - * Note that we use the max clock and lane count for eDP 1.3 and - * earlier, and fast vs. wide is irrelevant. - */ - ret = intel_dp_compute_link_config_fast(intel_dp, pipe_config, - &limits); - else - /* Optimize for slow and wide. */ - ret = intel_dp_compute_link_config_wide(intel_dp, pipe_config, - &limits); + /* + * Optimize for slow and wide. This is the place to add alternative + * optimization policy. + */ + ret = intel_dp_compute_link_config_wide(intel_dp, pipe_config, &limits); /* enable compression if the mode doesn't fit available BW */ DRM_DEBUG_KMS("Force DSC en = %d\n", intel_dp->force_dsc_en); -- cgit v1.2.3 From 4e2056e05e6eb646d37e310c11f6ac97a266b355 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Tue, 26 Mar 2019 16:25:56 +0200 Subject: drm/i915: Set DP min_bpp to 8*3 for non-RGB output formats MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6bpc is only legal for RGB and RAW pixel encodings. For the rest the minimum is 8bpc. Set our lower limit accordingly. Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20190326142556.21176-6-ville.syrjala@linux.intel.com Reviewed-by: Dhinakaran Pandiyan --- drivers/gpu/drm/i915/intel_dp.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/i915/intel_dp.c') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 0936d08aa982..6f1babe911df 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1978,6 +1978,14 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp, return 0; } +int intel_dp_min_bpp(const struct intel_crtc_state *crtc_state) +{ + if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_RGB) + return 6 * 3; + else + return 8 * 3; +} + static int intel_dp_compute_link_config(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config, @@ -2001,7 +2009,7 @@ intel_dp_compute_link_config(struct intel_encoder *encoder, limits.min_lane_count = 1; limits.max_lane_count = intel_dp_max_lane_count(intel_dp); - limits.min_bpp = 6 * 3; + limits.min_bpp = intel_dp_min_bpp(pipe_config); limits.max_bpp = intel_dp_compute_bpp(intel_dp, pipe_config); if (intel_dp_is_edp(intel_dp)) { -- cgit v1.2.3 From aefa95bacfbe65c3abcd8832575af023bc21cce8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Tue, 26 Mar 2019 16:49:03 +0200 Subject: drm/i915: Clean up DSC vs. not bpp handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit No point in duplicating all this code when we can just use a variable to hold the output bpp (the only thing that differs between the two branches). Cc: Anusha Srivatsa Cc: Manasi Navare Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20190326144903.6617-2-ville.syrjala@linux.intel.com Reviewed-by: Manasi Navare --- drivers/gpu/drm/i915/intel_dp.c | 27 ++++++++++++--------------- 1 file changed, 12 insertions(+), 15 deletions(-) (limited to 'drivers/gpu/drm/i915/intel_dp.c') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 6f1babe911df..e0c59383d11e 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -2111,7 +2111,7 @@ intel_dp_compute_config(struct intel_encoder *encoder, to_intel_digital_connector_state(conn_state); bool constant_n = drm_dp_has_quirk(&intel_dp->desc, DP_DPCD_QUIRK_CONSTANT_N); - int ret; + int ret, output_bpp; if (HAS_PCH_SPLIT(dev_priv) && !HAS_DDI(dev_priv) && port != PORT_A) pipe_config->has_pch_encoder = true; @@ -2166,25 +2166,22 @@ intel_dp_compute_config(struct intel_encoder *encoder, pipe_config->limited_color_range = intel_dp_limited_color_range(pipe_config, conn_state); - if (!pipe_config->dsc_params.compression_enable) - intel_link_compute_m_n(pipe_config->pipe_bpp, - pipe_config->lane_count, - adjusted_mode->crtc_clock, - pipe_config->port_clock, - &pipe_config->dp_m_n, - constant_n); + if (pipe_config->dsc_params.compression_enable) + output_bpp = pipe_config->dsc_params.compressed_bpp; else - intel_link_compute_m_n(pipe_config->dsc_params.compressed_bpp, - pipe_config->lane_count, - adjusted_mode->crtc_clock, - pipe_config->port_clock, - &pipe_config->dp_m_n, - constant_n); + output_bpp = pipe_config->pipe_bpp; + + intel_link_compute_m_n(output_bpp, + pipe_config->lane_count, + adjusted_mode->crtc_clock, + pipe_config->port_clock, + &pipe_config->dp_m_n, + constant_n); if (intel_connector->panel.downclock_mode != NULL && dev_priv->drrs.type == SEAMLESS_DRRS_SUPPORT) { pipe_config->has_drrs = true; - intel_link_compute_m_n(pipe_config->pipe_bpp, + intel_link_compute_m_n(output_bpp, pipe_config->lane_count, intel_connector->panel.downclock_mode->clock, pipe_config->port_clock, -- cgit v1.2.3 From 6fd3134ae3551d4802a04669c0f39f2f5c56f77d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Tue, 26 Mar 2019 16:49:02 +0200 Subject: drm/i915: Do not enable FEC without DSC MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Currently we enable FEC even when DSC is no used. While that is theoretically valid supposedly there isn't much of a benefit from this. But more importantly we do not account for the FEC link bandwidth overhead (2.4%) in the non-DSC link bandwidth computations. So the code may think we have enough bandwidth when we in fact do not. Cc: stable@vger.kernel.org Cc: Anusha Srivatsa Cc: Manasi Navare Fixes: 240999cf339f ("i915/dp/fec: Add fec_enable to the crtc state.") Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20190326144903.6617-1-ville.syrjala@linux.intel.com Reviewed-by: Manasi Navare --- drivers/gpu/drm/i915/intel_dp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/gpu/drm/i915/intel_dp.c') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index e0c59383d11e..560274d1c50b 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1895,6 +1895,9 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp, int pipe_bpp; int ret; + pipe_config->fec_enable = !intel_dp_is_edp(intel_dp) && + intel_dp_supports_fec(intel_dp, pipe_config); + if (!intel_dp_supports_dsc(intel_dp, pipe_config)) return -EINVAL; @@ -2156,9 +2159,6 @@ intel_dp_compute_config(struct intel_encoder *encoder, if (adjusted_mode->flags & DRM_MODE_FLAG_DBLCLK) return -EINVAL; - pipe_config->fec_enable = !intel_dp_is_edp(intel_dp) && - intel_dp_supports_fec(intel_dp, pipe_config); - ret = intel_dp_compute_link_config(encoder, pipe_config, conn_state); if (ret < 0) return ret; -- cgit v1.2.3