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-rw-r--r--meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3426-drm-amd-display-Add-Logging-for-Gamma-Related-inform.patch84
1 files changed, 84 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3426-drm-amd-display-Add-Logging-for-Gamma-Related-inform.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3426-drm-amd-display-Add-Logging-for-Gamma-Related-inform.patch
new file mode 100644
index 00000000..7f582054
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3426-drm-amd-display-Add-Logging-for-Gamma-Related-inform.patch
@@ -0,0 +1,84 @@
+From 30f60efca2009f794f042e4156d38cc627402b14 Mon Sep 17 00:00:00 2001
+From: Wyatt Wood <wyatt.wood@amd.com>
+Date: Wed, 24 Jul 2019 13:29:38 -0400
+Subject: [PATCH 3426/4256] drm/amd/display: Add Logging for Gamma Related
+ information (1/2)
+
+[Why]
+A recent bug showed that logging would be useful in
+debugging various gamma issues.
+
+[How]
+Add new log types and logging code to the color module.
+
+Signed-off-by: Wyatt Wood <wyatt.wood@amd.com>
+Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
+Acked-by: Leo Li <sunpeng.li@amd.com>
+---
+ .../gpu/drm/amd/display/include/logger_interface.h | 2 ++
+ drivers/gpu/drm/amd/display/include/logger_types.h | 1 +
+ .../gpu/drm/amd/display/modules/color/color_gamma.c | 12 ++++++++++++
+ .../gpu/drm/amd/display/modules/color/color_gamma.h | 1 +
+ 4 files changed, 16 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/display/include/logger_interface.h b/drivers/gpu/drm/amd/display/include/logger_interface.h
+index a0b68c266dab..6e008de25629 100644
+--- a/drivers/gpu/drm/amd/display/include/logger_interface.h
++++ b/drivers/gpu/drm/amd/display/include/logger_interface.h
+@@ -155,4 +155,6 @@ void context_clock_trace(
+
+ #define DISPLAY_STATS_END(entry) (void)(entry)
+
++#define LOG_GAMMA_WRITE(msg, ...)
++
+ #endif /* __DAL_LOGGER_INTERFACE_H__ */
+diff --git a/drivers/gpu/drm/amd/display/include/logger_types.h b/drivers/gpu/drm/amd/display/include/logger_types.h
+index ea8d445816b8..81650ee40f0b 100644
+--- a/drivers/gpu/drm/amd/display/include/logger_types.h
++++ b/drivers/gpu/drm/amd/display/include/logger_types.h
+@@ -117,6 +117,7 @@ enum dc_log_type {
+ LOG_DSC,
+ #endif
+ LOG_DWB,
++ LOG_GAMMA_DEBUG,
+ LOG_SECTION_TOTAL_COUNT
+ };
+
+diff --git a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
+index 4808113b91be..8f78ea226dae 100644
+--- a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
++++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
+@@ -94,6 +94,18 @@ void setup_x_points_distribution(void)
+ }
+ }
+
++void log_x_points_distribution(struct dal_logger *logger)
++{
++ int i = 0;
++
++ if (logger != NULL) {
++ LOG_GAMMA_WRITE("]Log X Distribution\n");
++
++ for (i = 0; i < MAX_HW_POINTS; i++)
++ LOG_GAMMA_WRITE("]%llu\n", coordinates_x[i].x.value);
++ }
++}
++
+ static void compute_pq(struct fixed31_32 in_x, struct fixed31_32 *out_y)
+ {
+ /* consts for PQ gamma formula. */
+diff --git a/drivers/gpu/drm/amd/display/modules/color/color_gamma.h b/drivers/gpu/drm/amd/display/modules/color/color_gamma.h
+index 69cecd2ec251..44ddea58523a 100644
+--- a/drivers/gpu/drm/amd/display/modules/color/color_gamma.h
++++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.h
+@@ -92,6 +92,7 @@ struct translate_from_linear_space_args {
+ };
+
+ void setup_x_points_distribution(void);
++void log_x_points_distribution(struct dal_logger *logger);
+ void precompute_pq(void);
+ void precompute_de_pq(void);
+
+--
+2.17.1
+