From: Samson Tam <samson....@amd.com>
[Why]
If max_downscale_src_width check fails, we exit early from
spl_calculate_scaler_params but dscl_prog_data is not fully
populated. If viewport is left at 0, it can cause crash in dml.
[How]
Call spl_set_dscl_prog_data before we exit early from
spl_calculate_scaler_params to populate dscl_prog_data
Populate taps in spl_get_optimal_number_of_taps
Reviewed-by: Alvin Lee <alvin.l...@amd.com>
Signed-off-by: Samson Tam <samson....@amd.com>
Signed-off-by: Tom Chung <chiahsuan.ch...@amd.com>
---
drivers/gpu/drm/amd/display/dc/spl/dc_spl.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/spl/dc_spl.c
b/drivers/gpu/drm/amd/display/dc/spl/dc_spl.c
index f043c7e32e16..403fd1221803 100644
--- a/drivers/gpu/drm/amd/display/dc/spl/dc_spl.c
+++ b/drivers/gpu/drm/amd/display/dc/spl/dc_spl.c
@@ -882,8 +882,13 @@ static bool spl_get_optimal_number_of_taps(
if (spl_scratch->scl_data.viewport.width >
spl_scratch->scl_data.h_active &&
max_downscale_src_width != 0 &&
- spl_scratch->scl_data.viewport.width > max_downscale_src_width)
+ spl_scratch->scl_data.viewport.width > max_downscale_src_width)
{
+ memcpy(&spl_scratch->scl_data.taps, in_taps, sizeof(struct
spl_taps));
+ *enable_easf_v = false;
+ *enable_easf_h = false;
+ *enable_isharp = false;
return false;
+ }
/* Disable adaptive scaler and sharpener when integer scaling is
enabled */
if (spl_in->scaling_quality.integer_scaling) {
@@ -1765,12 +1770,12 @@ bool spl_calculate_scaler_params(struct spl_in *spl_in,
struct spl_out *spl_out)
// Clamp
spl_clamp_viewport(&spl_scratch.scl_data.viewport);
- if (!res)
- return res;
-
// Save all calculated parameters in dscl_prog_data structure to
program hw registers
spl_set_dscl_prog_data(spl_in, &spl_scratch, spl_out, enable_easf_v,
enable_easf_h, enable_isharp);
+ if (!res)
+ return res;
+
if (spl_in->lls_pref == LLS_PREF_YES) {
if (spl_in->is_hdr_on)
setup = HDR_L;
--
2.34.1
