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drm/i915/dp: Rename some variables in xelpd_dsc_compute_link_config()

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Use the _x16 suffix for all .4 fixed point variables. Drop compressed_
prefix, as it's implied from the precision suffix.

As dsc_min_bpp and dsc_max_bpp change domain from int to .4 in the
middle of the function, they remain the same for now.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/91dd6ef53683b624a978101cca7322ea3e5e2f7b.1738327620.git.jani.nikula@intel.com
This commit is contained in:
Jani Nikula
2025-01-31 14:49:56 +02:00
parent dc9ea8777c
commit 2e74748c4c
1 changed files with 8 additions and 11 deletions
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19
drivers/gpu/drm/i915/display/intel_dp.c
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@@ -2126,31 +2126,28 @@ xelpd_dsc_compute_link_config(struct intel_dp *intel_dp,
{
struct intel_display *display = to_intel_display(intel_dp);
int output_bpp = intel_dp_output_bpp(pipe_config->output_format, pipe_bpp);
u16 compressed_bppx16;
u8 bppx16_step;
int bpp_x16, bpp_step_x16;
int ret;
bppx16_step = intel_dp_dsc_bpp_step_x16(connector);
bpp_step_x16 = intel_dp_dsc_bpp_step_x16(connector);
/* Compressed BPP should be less than the Input DSC bpp */
dsc_max_bpp = min(dsc_max_bpp << 4, (output_bpp << 4) - bppx16_step);
dsc_max_bpp = min(dsc_max_bpp << 4, (output_bpp << 4) - bpp_step_x16);
dsc_min_bpp = dsc_min_bpp << 4;
for (compressed_bppx16 = dsc_max_bpp;
compressed_bppx16 >= dsc_min_bpp;
compressed_bppx16 -= bppx16_step) {
for (bpp_x16 = dsc_max_bpp; bpp_x16 >= dsc_min_bpp; bpp_x16 -= bpp_step_x16) {
if (intel_dp->force_dsc_fractional_bpp_en &&
!fxp_q4_to_frac(compressed_bppx16))
!fxp_q4_to_frac(bpp_x16))
continue;
ret = dsc_compute_link_config(intel_dp,
pipe_config,
limits,
compressed_bppx16,
bpp_x16,
timeslots);
if (ret == 0) {
pipe_config->dsc.compressed_bpp_x16 = compressed_bppx16;
pipe_config->dsc.compressed_bpp_x16 = bpp_x16;
if (intel_dp->force_dsc_fractional_bpp_en &&
fxp_q4_to_frac(compressed_bppx16))
fxp_q4_to_frac(bpp_x16))
drm_dbg_kms(display->drm,
"Forcing DSC fractional bpp\n");