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drm/i915/dsc: make DSC source support helper generic 

Move intel_dp_source_supports_dsc() from intel_dp.c as
intel_dsc_source_support() in intel_vdsc.c. The DSC source support is
more about DSC than about DP, and will be needed for DP independent
code.

Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6c9f646090913290fb00efd46a4332421bf95930.1575974743.git.jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2019-12-10 12:50:51 +02:00
parent 2d15f3925a
commit deaaff4919
3 changed files with 28 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/gpu/drm/i915/display/intel_dp.c
View File

@ -1889,32 +1889,15 @@ static bool intel_dp_supports_fec(struct intel_dp *intel_dp,
drm_dp_sink_supports_fec(intel_dp->fec_capable);
}
static bool intel_dp_source_supports_dsc(struct intel_dp *intel_dp,
const struct intel_crtc_state *pipe_config)
{
struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
if (!INTEL_INFO(dev_priv)->display.has_dsc)
return false;
/* On TGL, DSC is supported on all Pipes */
if (INTEL_GEN(dev_priv) >= 12)
return true;
if (INTEL_GEN(dev_priv) >= 10 &&
pipe_config->cpu_transcoder != TRANSCODER_A)
return true;
return false;
}
static bool intel_dp_supports_dsc(struct intel_dp *intel_dp,
const struct intel_crtc_state *pipe_config)
const struct intel_crtc_state *crtc_state)
{
if (!intel_dp_is_edp(intel_dp) && !pipe_config->fec_enable)
struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
if (!intel_dp_is_edp(intel_dp) && !crtc_state->fec_enable)
return false;
return intel_dp_source_supports_dsc(intel_dp, pipe_config) &&
return intel_dsc_source_support(encoder, crtc_state) &&
drm_dp_sink_supports_dsc(intel_dp->dsc_dpcd);
}

19
drivers/gpu/drm/i915/display/intel_vdsc.c
View File

@ -334,6 +334,25 @@ static const struct rc_parameters *get_rc_params(u16 compressed_bpp,
return &rc_parameters[row_index][column_index];
}
bool intel_dsc_source_support(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state)
{
struct drm_i915_private *i915 = to_i915(encoder->base.dev);
if (!INTEL_INFO(i915)->display.has_dsc)
return false;
/* On TGL, DSC is supported on all Pipes */
if (INTEL_GEN(i915) >= 12)
return true;
if (INTEL_GEN(i915) >= 10 &&
crtc_state->cpu_transcoder != TRANSCODER_A)
return true;
return false;
}
int intel_dsc_compute_params(struct intel_encoder *encoder,
struct intel_crtc_state *pipe_config)
{

4
drivers/gpu/drm/i915/display/intel_vdsc.h
View File

@ -6,9 +6,13 @@
#ifndef __INTEL_VDSC_H__
#define __INTEL_VDSC_H__
#include <linux/types.h>
struct intel_encoder;
struct intel_crtc_state;
bool intel_dsc_source_support(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state);
void intel_dsc_enable(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state);
void intel_dsc_disable(const struct intel_crtc_state *crtc_state);