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* [Intel-gfx] [RFC 0/3] Implement CMRR Support
@ 2023-11-15 15:49 Mitul Golani
  2023-11-15 15:49 ` [Intel-gfx] [RFC 1/3] drm/i915: Define and compute Transcoder CMRR registers Mitul Golani
                   ` (6 more replies)
  0 siblings, 7 replies; 9+ messages in thread
From: Mitul Golani @ 2023-11-15 15:49 UTC (permalink / raw)
  To: intel-gfx; +Cc: jani.nikula, ville.syrjala

CMRR is a display feature that uses adaptive sync
framework to vary Vtotal slightly to match the
content rate exactly without frame drops. This
feature is a variation of VRR where it varies Vtotal
slightly (between additional 0 and 1 Vtotal scanlines)
to match content rate exactly without frame drops
using the adaptive sync framework.

enable this feature by programing new registers for
CMRR enable, CMRR_M, CMRR_N, vmin=vmax=flipline.The
CMRR_M/CMRR_N ratio represents the fractional part
in (actual refresh rate/target refresh rate) * origVTotal.

Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>

Mitul Golani (3):
  drm/i915: Define and compute Transcoder CMRR registers
  drm/i915: Add Enable/Disable for CMRR based on VRR state
  drm/i915: Compute CMRR and calculate vtotal

 .../drm/i915/display/intel_crtc_state_dump.c  |   4 +-
 drivers/gpu/drm/i915/display/intel_display.c  |  54 +++++++-
 .../drm/i915/display/intel_display_device.h   |   1 +
 .../drm/i915/display/intel_display_types.h    |   6 +
 drivers/gpu/drm/i915/display/intel_vrr.c      | 126 ++++++++++++++++--
 drivers/gpu/drm/i915/i915_reg.h               |  10 ++
 6 files changed, 181 insertions(+), 20 deletions(-)

-- 
2.25.1


^ permalink raw reply	[flat|nested] 9+ messages in thread
* [Intel-gfx] [RFC 0/3] Implement CMRR Support
@ 2023-11-15  6:30 Mitul Golani
  0 siblings, 0 replies; 9+ messages in thread
From: Mitul Golani @ 2023-11-15  6:30 UTC (permalink / raw)
  To: intel-gfx; +Cc: ville.syrjala

CMRR is a display feature that uses adaptive sync
framework to vary Vtotal slightly to match the
content rate exactly without frame drops. This
feature is a variation of VRR where it varies Vtotal
slightly (between additional 0 and 1 Vtotal scanlines)
to match content rate exactly without frame drops
using the adaptive sync framework.

enable this feature by programing new registers for
CMRR enable, CMRR_M, CMRR_N, vmin=vmax=flipline.The
CMRR_M/CMRR_N ratio represents the fractional part
in (actual refresh rate/target refresh rate) * origVTotal.

Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>

Mitul Golani (3):
  drm/i915: Define and compute Transcoder CMRR registers
  drm/i915: Add Enable/Disable for CMRR based on VRR state
  drm/i915: Compute CMRR and calculate vtotal

 .../drm/i915/display/intel_crtc_state_dump.c  |   4 +-
 drivers/gpu/drm/i915/display/intel_display.c  |  48 +++++-
 .../drm/i915/display/intel_display_device.h   |   1 +
 .../drm/i915/display/intel_display_types.h    |   6 +
 drivers/gpu/drm/i915/display/intel_vrr.c      | 141 +++++++++++++++---
 drivers/gpu/drm/i915/i915_reg.h               |  14 ++
 6 files changed, 191 insertions(+), 23 deletions(-)

-- 
2.25.1


^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2023-11-17  5:31 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-11-15 15:49 [Intel-gfx] [RFC 0/3] Implement CMRR Support Mitul Golani
2023-11-15 15:49 ` [Intel-gfx] [RFC 1/3] drm/i915: Define and compute Transcoder CMRR registers Mitul Golani
2023-11-15 15:49 ` [Intel-gfx] [RFC 2/3] drm/i915: Add Enable/Disable for CMRR based on VRR state Mitul Golani
2023-11-15 15:49 ` [Intel-gfx] [RFC 3/3] drm/i915: Compute CMRR and calculate vtotal Mitul Golani
2023-11-16  0:54 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Implement CMRR Support (rev3) Patchwork
2023-11-16  0:54 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2023-11-16  1:07 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2023-11-17  5:31 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
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2023-11-15  6:30 [Intel-gfx] [RFC 0/3] Implement CMRR Support Mitul Golani

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