From: Animesh Manna <animesh.manna@intel.com> To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: jani.nikula@intel.com, nidhi1.gupta@intel.com, Animesh Manna <animesh.manna@intel.com>, manasi.d.navare@intel.com, uma.shankar@intel.com, anshuman.gupta@intel.com Subject: [PATCH v3 3/9] drm/i915/dp: Move vswing/pre-emphasis adjustment calculation Date: Mon, 23 Dec 2019 22:15:37 +0530 [thread overview] Message-ID: <20191223164537.15285-1-animesh.manna@intel.com> (raw) In-Reply-To: <20191219123310.GG1208@intel.com> vswing/pre-emphasis adjustment calculation is needed in processing of auto phy compliance request other than link training, so moved the same function in intel_dp.c. No functional change. v1: initial patch. v2: - used "intel_dp" prefix in function name. (Jani) - used array notation instead pointer for link_status. (Ville) Signed-off-by: Animesh Manna <animesh.manna@intel.com> --- drivers/gpu/drm/i915/display/intel_dp.c | 34 +++++++++++++++++++ drivers/gpu/drm/i915/display/intel_dp.h | 4 +++ .../drm/i915/display/intel_dp_link_training.c | 32 ----------------- 3 files changed, 38 insertions(+), 32 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 2f31d226c6eb..4703e533feb3 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -4110,6 +4110,40 @@ ivb_cpu_edp_signal_levels(u8 train_set) } } +void +intel_dp_get_adjust_train(struct intel_dp *intel_dp, + const u8 link_status[DP_LINK_STATUS_SIZE]) +{ + u8 v = 0; + u8 p = 0; + int lane; + u8 voltage_max; + u8 preemph_max; + + for (lane = 0; lane < intel_dp->lane_count; lane++) { + u8 this_v = drm_dp_get_adjust_request_voltage(link_status, + lane); + u8 this_p = drm_dp_get_adjust_request_pre_emphasis(link_status, + lane); + + if (this_v > v) + v = this_v; + if (this_p > p) + p = this_p; + } + + voltage_max = intel_dp_voltage_max(intel_dp); + if (v >= voltage_max) + v = voltage_max | DP_TRAIN_MAX_SWING_REACHED; + + preemph_max = intel_dp_pre_emphasis_max(intel_dp, v); + if (p >= preemph_max) + p = preemph_max | DP_TRAIN_MAX_PRE_EMPHASIS_REACHED; + + for (lane = 0; lane < 4; lane++) + intel_dp->train_set[lane] = v | p; +} + void intel_dp_set_signal_levels(struct intel_dp *intel_dp) { diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h index 3da166054788..83eadc87af26 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.h +++ b/drivers/gpu/drm/i915/display/intel_dp.h @@ -9,6 +9,7 @@ #include <linux/types.h> #include <drm/i915_drm.h> +#include <drm/drm_dp_helper.h> #include "i915_reg.h" @@ -91,6 +92,9 @@ void intel_dp_program_link_training_pattern(struct intel_dp *intel_dp, u8 dp_train_pat); void +intel_dp_get_adjust_train(struct intel_dp *intel_dp, + const u8 link_status[DP_LINK_STATUS_SIZE]); +void intel_dp_set_signal_levels(struct intel_dp *intel_dp); void intel_dp_set_idle_link_train(struct intel_dp *intel_dp); u8 diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c index 2a1130dd1ad0..1e38584e7d56 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c @@ -34,38 +34,6 @@ intel_dp_dump_link_status(const u8 link_status[DP_LINK_STATUS_SIZE]) link_status[3], link_status[4], link_status[5]); } -static void -intel_get_adjust_train(struct intel_dp *intel_dp, - const u8 link_status[DP_LINK_STATUS_SIZE]) -{ - u8 v = 0; - u8 p = 0; - int lane; - u8 voltage_max; - u8 preemph_max; - - for (lane = 0; lane < intel_dp->lane_count; lane++) { - u8 this_v = drm_dp_get_adjust_request_voltage(link_status, lane); - u8 this_p = drm_dp_get_adjust_request_pre_emphasis(link_status, lane); - - if (this_v > v) - v = this_v; - if (this_p > p) - p = this_p; - } - - voltage_max = intel_dp_voltage_max(intel_dp); - if (v >= voltage_max) - v = voltage_max | DP_TRAIN_MAX_SWING_REACHED; - - preemph_max = intel_dp_pre_emphasis_max(intel_dp, v); - if (p >= preemph_max) - p = preemph_max | DP_TRAIN_MAX_PRE_EMPHASIS_REACHED; - - for (lane = 0; lane < 4; lane++) - intel_dp->train_set[lane] = v | p; -} - static bool intel_dp_set_link_train(struct intel_dp *intel_dp, u8 dp_train_pat) -- 2.24.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
WARNING: multiple messages have this Message-ID (diff)
From: Animesh Manna <animesh.manna@intel.com> To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: jani.nikula@intel.com, nidhi1.gupta@intel.com Subject: [Intel-gfx] [PATCH v3 3/9] drm/i915/dp: Move vswing/pre-emphasis adjustment calculation Date: Mon, 23 Dec 2019 22:15:37 +0530 [thread overview] Message-ID: <20191223164537.15285-1-animesh.manna@intel.com> (raw) In-Reply-To: <20191219123310.GG1208@intel.com> vswing/pre-emphasis adjustment calculation is needed in processing of auto phy compliance request other than link training, so moved the same function in intel_dp.c. No functional change. v1: initial patch. v2: - used "intel_dp" prefix in function name. (Jani) - used array notation instead pointer for link_status. (Ville) Signed-off-by: Animesh Manna <animesh.manna@intel.com> --- drivers/gpu/drm/i915/display/intel_dp.c | 34 +++++++++++++++++++ drivers/gpu/drm/i915/display/intel_dp.h | 4 +++ .../drm/i915/display/intel_dp_link_training.c | 32 ----------------- 3 files changed, 38 insertions(+), 32 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 2f31d226c6eb..4703e533feb3 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -4110,6 +4110,40 @@ ivb_cpu_edp_signal_levels(u8 train_set) } } +void +intel_dp_get_adjust_train(struct intel_dp *intel_dp, + const u8 link_status[DP_LINK_STATUS_SIZE]) +{ + u8 v = 0; + u8 p = 0; + int lane; + u8 voltage_max; + u8 preemph_max; + + for (lane = 0; lane < intel_dp->lane_count; lane++) { + u8 this_v = drm_dp_get_adjust_request_voltage(link_status, + lane); + u8 this_p = drm_dp_get_adjust_request_pre_emphasis(link_status, + lane); + + if (this_v > v) + v = this_v; + if (this_p > p) + p = this_p; + } + + voltage_max = intel_dp_voltage_max(intel_dp); + if (v >= voltage_max) + v = voltage_max | DP_TRAIN_MAX_SWING_REACHED; + + preemph_max = intel_dp_pre_emphasis_max(intel_dp, v); + if (p >= preemph_max) + p = preemph_max | DP_TRAIN_MAX_PRE_EMPHASIS_REACHED; + + for (lane = 0; lane < 4; lane++) + intel_dp->train_set[lane] = v | p; +} + void intel_dp_set_signal_levels(struct intel_dp *intel_dp) { diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h index 3da166054788..83eadc87af26 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.h +++ b/drivers/gpu/drm/i915/display/intel_dp.h @@ -9,6 +9,7 @@ #include <linux/types.h> #include <drm/i915_drm.h> +#include <drm/drm_dp_helper.h> #include "i915_reg.h" @@ -91,6 +92,9 @@ void intel_dp_program_link_training_pattern(struct intel_dp *intel_dp, u8 dp_train_pat); void +intel_dp_get_adjust_train(struct intel_dp *intel_dp, + const u8 link_status[DP_LINK_STATUS_SIZE]); +void intel_dp_set_signal_levels(struct intel_dp *intel_dp); void intel_dp_set_idle_link_train(struct intel_dp *intel_dp); u8 diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c index 2a1130dd1ad0..1e38584e7d56 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c @@ -34,38 +34,6 @@ intel_dp_dump_link_status(const u8 link_status[DP_LINK_STATUS_SIZE]) link_status[3], link_status[4], link_status[5]); } -static void -intel_get_adjust_train(struct intel_dp *intel_dp, - const u8 link_status[DP_LINK_STATUS_SIZE]) -{ - u8 v = 0; - u8 p = 0; - int lane; - u8 voltage_max; - u8 preemph_max; - - for (lane = 0; lane < intel_dp->lane_count; lane++) { - u8 this_v = drm_dp_get_adjust_request_voltage(link_status, lane); - u8 this_p = drm_dp_get_adjust_request_pre_emphasis(link_status, lane); - - if (this_v > v) - v = this_v; - if (this_p > p) - p = this_p; - } - - voltage_max = intel_dp_voltage_max(intel_dp); - if (v >= voltage_max) - v = voltage_max | DP_TRAIN_MAX_SWING_REACHED; - - preemph_max = intel_dp_pre_emphasis_max(intel_dp, v); - if (p >= preemph_max) - p = preemph_max | DP_TRAIN_MAX_PRE_EMPHASIS_REACHED; - - for (lane = 0; lane < 4; lane++) - intel_dp->train_set[lane] = v | p; -} - static bool intel_dp_set_link_train(struct intel_dp *intel_dp, u8 dp_train_pat) -- 2.24.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2019-12-23 16:56 UTC|newest] Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-12-18 15:13 [PATCH v2 0/9] DP Phy compliance auto test Animesh Manna 2019-12-18 15:13 ` [Intel-gfx] " Animesh Manna 2019-12-18 15:13 ` [PATCH v2 1/9] drm/dp: get/set phy compliance pattern Animesh Manna 2019-12-18 15:13 ` [Intel-gfx] " Animesh Manna 2019-12-18 15:13 ` [PATCH v2 2/9] drm/amd/display: Fix compilation issue Animesh Manna 2019-12-18 15:13 ` [Intel-gfx] " Animesh Manna 2019-12-18 15:42 ` Harry Wentland 2019-12-18 15:42 ` [Intel-gfx] " Harry Wentland 2019-12-18 16:13 ` Manna, Animesh 2019-12-18 16:13 ` [Intel-gfx] " Manna, Animesh 2019-12-18 16:22 ` Harry Wentland 2019-12-18 16:22 ` [Intel-gfx] " Harry Wentland 2019-12-18 23:53 ` Manasi Navare 2019-12-18 23:53 ` [Intel-gfx] " Manasi Navare 2019-12-19 13:36 ` Manna, Animesh 2019-12-19 13:36 ` [Intel-gfx] " Manna, Animesh 2019-12-23 17:03 ` [PATCH v3 1/9] drm/amd/display: Align macro name as per DP spec Animesh Manna 2019-12-23 17:03 ` [Intel-gfx] " Animesh Manna 2019-12-23 17:03 ` [PATCH v3 2/9] drm/dp: get/set phy compliance pattern Animesh Manna 2019-12-23 17:03 ` [Intel-gfx] " Animesh Manna 2019-12-23 19:53 ` Harry Wentland 2019-12-23 19:53 ` [Intel-gfx] " Harry Wentland 2019-12-30 16:05 ` Manna, Animesh 2019-12-30 16:05 ` [Intel-gfx] " Manna, Animesh 2019-12-30 16:11 ` Harry Wentland 2019-12-30 16:11 ` [Intel-gfx] " Harry Wentland 2019-12-30 16:30 ` Manna, Animesh 2019-12-30 16:30 ` [Intel-gfx] " Manna, Animesh 2019-12-23 19:53 ` [PATCH v3 1/9] drm/amd/display: Align macro name as per DP spec Harry Wentland 2019-12-23 19:53 ` [Intel-gfx] " Harry Wentland 2019-12-18 15:13 ` [PATCH v2 3/9] drm/i915/dp: Move vswing/pre-emphasis adjustment calculation Animesh Manna 2019-12-18 15:13 ` [Intel-gfx] " Animesh Manna 2019-12-19 10:51 ` Jani Nikula 2019-12-19 10:51 ` [Intel-gfx] " Jani Nikula 2019-12-19 13:27 ` Manna, Animesh 2019-12-19 13:27 ` [Intel-gfx] " Manna, Animesh 2019-12-19 12:33 ` Ville Syrjälä 2019-12-19 12:33 ` [Intel-gfx] " Ville Syrjälä 2019-12-19 13:31 ` Manna, Animesh 2019-12-19 13:31 ` [Intel-gfx] " Manna, Animesh 2019-12-23 16:45 ` Animesh Manna [this message] 2019-12-23 16:45 ` [Intel-gfx] [PATCH v3 " Animesh Manna 2019-12-18 15:13 ` [PATCH v2 4/9] drm/i915/dp: Preparation for DP phy compliance auto test Animesh Manna 2019-12-18 15:13 ` [Intel-gfx] " Animesh Manna 2019-12-18 15:13 ` [PATCH v2 5/9] drm/i915/dsb: Send uevent to testapp Animesh Manna 2019-12-18 15:13 ` [Intel-gfx] " Animesh Manna 2019-12-18 15:13 ` [PATCH v2 6/9] drm/i915/dp: Add debugfs entry for DP phy compliance Animesh Manna 2019-12-18 15:13 ` [Intel-gfx] " Animesh Manna 2019-12-18 15:13 ` [PATCH v2 7/9] drm/i915/dp: Register definition for DP compliance register Animesh Manna 2019-12-18 15:13 ` [Intel-gfx] " Animesh Manna 2019-12-18 15:13 ` [PATCH v2 8/9] drm/i915/dp: Update the pattern as per request Animesh Manna 2019-12-18 15:13 ` [Intel-gfx] " Animesh Manna 2019-12-18 15:13 ` [PATCH v2 9/9] drm/i915/dp: [FIXME] Program vswing, pre-emphasis, test-pattern Animesh Manna 2019-12-18 15:13 ` [Intel-gfx] " Animesh Manna 2019-12-18 18:42 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for DP Phy compliance auto test Patchwork 2019-12-18 18:44 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork 2019-12-18 19:11 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork 2019-12-20 4:31 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork 2019-12-23 19:33 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for DP Phy compliance auto test (rev4) Patchwork 2019-12-23 16:43 [PATCH v3 3/9] drm/i915/dp: Move vswing/pre-emphasis adjustment calculation Animesh Manna 2019-12-30 16:15 [PATCH v3 0/9] DP Phy compliance auto test Animesh Manna 2019-12-30 16:15 ` [PATCH v3 3/9] drm/i915/dp: Move vswing/pre-emphasis adjustment calculation Animesh Manna 2020-01-02 9:18 ` Jani Nikula 2020-01-02 10:26 ` Manna, Animesh 2020-01-03 23:48 ` Manasi Navare 2020-01-06 10:02 ` Manna, Animesh 2020-01-15 9:11 ` Jani Nikula
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