diff options
| author | Alvin Lee <Alvin.Lee2@amd.com> | 2022-09-01 18:43:39 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-09-19 15:12:31 -0400 |
| commit | 6eef37460584269b240f45aa47ebb61aae848082 (patch) | |
| tree | f1066f0ad54cbe871baf7cb6bf97d270725e2e61 /drivers/gpu/drm/amd/display/dc | |
| parent | 6349c73859cba2fabd77494230306ae8a7e45b33 (diff) | |
| download | linux-stable-6eef37460584269b240f45aa47ebb61aae848082.tar.gz linux-stable-6eef37460584269b240f45aa47ebb61aae848082.tar.bz2 linux-stable-6eef37460584269b240f45aa47ebb61aae848082.zip | |
drm/amd/display: Add debug option for allocating extra way for cursor
[Why and How]
- Add a debug option for allocating extra way for cursor
- Remove usage of cache_cursor_addr since it's not gaurenteed
to be populated
- Include cursor size in MALL calculation if it exceeds the
DCN cursor buffer size (and don't need extra way for cursor)
Reviewed-by: Aurabindo Pillai <Aurabindo.Pillai@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc')
4 files changed, 9 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 53b13beff0b2..af726ffeb0d5 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -832,6 +832,7 @@ struct dc_debug_options { bool force_subvp_mclk_switch; bool allow_sw_cursor_fallback; unsigned int force_subvp_num_ways; + bool alloc_extra_way_for_cursor; bool force_usr_allow; /* uses value at boot and disables switch */ bool disable_dtb_ref_clk_switch; diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c index c6d2a05ded3d..931dcf3e5ada 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c @@ -304,7 +304,8 @@ static uint32_t dcn32_calculate_cab_allocation(struct dc *dc, struct dc_state *c * using the max for calculation */ if (hubp->curs_attr.width > 0) { - cursor_size = hubp->curs_attr.width * hubp->curs_attr.height; + // Round cursor width to next multiple of 64 + cursor_size = (((hubp->curs_attr.width + 63) / 64) * 64) * hubp->curs_attr.height; break; } } @@ -325,7 +326,8 @@ static uint32_t dcn32_calculate_cab_allocation(struct dc *dc, struct dc_state *c break; } - if (stream->cursor_position.enable && plane->address.grph.cursor_cache_addr.quad_part) { + if (stream->cursor_position.enable && !dc->debug.alloc_extra_way_for_cursor && + cursor_size > 16384) { cache_lines_used += dcn32_cache_lines_for_surface(dc, cursor_size, plane->address.grph.cursor_cache_addr.quad_part); } @@ -345,8 +347,8 @@ static uint32_t dcn32_calculate_cab_allocation(struct dc *dc, struct dc_state *c plane = ctx->stream_status[i].plane_states[j]; if (stream->cursor_position.enable && plane && - !plane->address.grph.cursor_cache_addr.quad_part && - cursor_size > 16384) { + dc->debug.alloc_extra_way_for_cursor && + cursor_size > 16384) { /* Cursor caching is not supported since it won't be on the same line. * So we need an extra line to accommodate it. With large cursors and a single 4k monitor * this case triggers corruption. If we're at the edge, then dont trigger display refresh diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c index 49586f0c1336..370cff666bf9 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c @@ -720,6 +720,7 @@ static const struct dc_debug_options debug_defaults_drv = { .enable_single_display_2to1_odm_policy = true, .enable_dp_dig_pixel_rate_div_policy = 1, .allow_sw_cursor_fallback = false, + .alloc_extra_way_for_cursor = true, }; static const struct dc_debug_options debug_defaults_diags = { diff --git a/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c b/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c index b17ed910e32f..c772ef962194 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c @@ -720,6 +720,7 @@ static const struct dc_debug_options debug_defaults_drv = { .enable_single_display_2to1_odm_policy = true, .enable_dp_dig_pixel_rate_div_policy = 1, .allow_sw_cursor_fallback = false, + .alloc_extra_way_for_cursor = true, }; static const struct dc_debug_options debug_defaults_diags = { |