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drm/i915: Extract HAS_DOUBLE_BUFFERED_M_N()

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We have a couple of places that want to make distinction between
double buffered M/N registers vs. the split M1/N1+M2/N2 registers.
Add a helper for that.

v2: Turn into a HAS_ macro (Jani)

Reviewed-by: Jani Nikula <jani.nikula@intel.com> #v1
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220907091057.11572-4-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2022-09-07 12:10:43 +03:00
parent c61ede87b0
commit 9988db59b1
3 changed files with 4 additions and 3 deletions
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2
drivers/gpu/drm/i915/display/intel_display.c
View File

@ -5771,7 +5771,7 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
PIPE_CONF_CHECK_I(lane_count);
PIPE_CONF_CHECK_X(lane_lat_optim_mask);
if (DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv)) {
if (HAS_DOUBLE_BUFFERED_M_N(dev_priv)) {
PIPE_CONF_CHECK_M_N_ALT(dp_m_n, dp_m2_n2);
} else {
PIPE_CONF_CHECK_M_N(dp_m_n);

3
drivers/gpu/drm/i915/display/intel_dp.c
View File

@ -1864,8 +1864,7 @@ intel_dp_compute_hdr_metadata_infoframe_sdp(struct intel_dp *intel_dp,
static bool cpu_transcoder_has_drrs(struct drm_i915_private *i915,
enum transcoder cpu_transcoder)
{
/* M1/N1 is double buffered */
if (DISPLAY_VER(i915) >= 9 || IS_BROADWELL(i915))
if (HAS_DOUBLE_BUFFERED_M_N(i915))
return true;
return intel_cpu_transcoder_has_m2_n2(i915, cpu_transcoder);

2
drivers/gpu/drm/i915/i915_drv.h
View File

@ -868,6 +868,8 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
#define HAS_DP_MST(dev_priv) (INTEL_INFO(dev_priv)->display.has_dp_mst)
#define HAS_DP20(dev_priv) (IS_DG2(dev_priv) || DISPLAY_VER(dev_priv) >= 14)
#define HAS_DOUBLE_BUFFERED_M_N(dev_priv) (DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv))
#define HAS_CDCLK_CRAWL(dev_priv) (INTEL_INFO(dev_priv)->display.has_cdclk_crawl)
#define HAS_DDI(dev_priv) (INTEL_INFO(dev_priv)->display.has_ddi)
#define HAS_FPGA_DBG_UNCLAIMED(dev_priv) (INTEL_INFO(dev_priv)->display.has_fpga_dbg)