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| author | Nikola Cornij <nikola.cornij@amd.com> | 2019-03-19 19:47:32 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-06-22 09:34:08 -0500 |
| commit | c2bcd914a2a7917442daf20a7b33d690f5903bea (patch) | |
| tree | 39a2dc287053ccc8315d44ed4b60adc55d73a732 /drivers/gpu/drm/amd/display/dc/dsc | |
| parent | c5d3a38b1a18a0bcdfd4cc54e4396cce2aabc968 (diff) | |
| download | linux-c2bcd914a2a7917442daf20a7b33d690f5903bea.tar.gz linux-c2bcd914a2a7917442daf20a7b33d690f5903bea.tar.bz2 linux-c2bcd914a2a7917442daf20a7b33d690f5903bea.zip | |
drm/amd/display: Calculate link bandwidth in a common function
[why]
Currently link bandwidth is calculated in various places using the same
multi-step formula. Doing this in one common place makes sure the same
formula will indeed be applied to all link bandwidth calculations.
It also makes it possible to apply link-setting-specific adjustments
that affect effective link bandwidth.
[how]
Replace all implementations of link bandwidth calculation with a call
to a function.
Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Reviewed-by: Nikola Cornij <Nikola.Cornij@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dsc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c index 4ffcc2844d19..9e9c77e472e1 100644 --- a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c +++ b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c @@ -849,15 +849,11 @@ bool dc_check_and_fit_timing_into_bandwidth_with_dsc_legacy( { int requiredBandwidth_Kbps; bool stream_fits_into_bandwidth = false; - int link_rate_kbytes_per_sec = link->verified_link_cap.link_rate * LINK_RATE_REF_FREQ_IN_KHZ; - int total_link_bandwdith_kbps = link->verified_link_cap.lane_count * link_rate_kbytes_per_sec * 8; - - if (link->preferred_link_setting.lane_count != - LANE_COUNT_UNKNOWN && - link->preferred_link_setting.link_rate != - LINK_RATE_UNKNOWN) { - link_rate_kbytes_per_sec = link->preferred_link_setting.link_rate * LINK_RATE_REF_FREQ_IN_KHZ; - total_link_bandwdith_kbps = link->preferred_link_setting.lane_count * link_rate_kbytes_per_sec * 8; + int total_link_bandwdith_kbps = dc_link_bandwidth_kbps(link, &link->verified_link_cap); + + if (link->preferred_link_setting.lane_count != LANE_COUNT_UNKNOWN && + link->preferred_link_setting.link_rate != LINK_RATE_UNKNOWN) { + total_link_bandwdith_kbps = dc_link_bandwidth_kbps(link, &link->preferred_link_setting); } timing->flags.DSC = 0; |