Commit graph

5 commits

Author SHA1 Message Date
Jani Nikula
880e07d538 drm/i915/vrr: fix register file style
Fix indents, use of spaces vs. tabs, grouping, remove superfluous
comments, remove some line continuations, wrap macro arguments in
parens, rename dev_priv to display. This is the way.

Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Cc: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://lore.kernel.org/r/20250618155137.1651865-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-06-19 11:14:10 +03:00
Ankit Nautiyal
e1123e617e drm/i915/vrr: Program EMP_AS_SDP_TL for DP AS SDP
The register EMP_AS_SDP_TL (MTL) was introduced for configuring the
double buffering point and transmission line for all
HDMI2.1 Extended Metadata Packets (VT-EMP for VRR, CVT-EMP for DSC etc).
This was also intended to be configured for DP to HDMI2.1 PCON to
support VRR.

From BMG and LNL+ onwards, this register was extended to Display Port
Adaptive Sync SDP to have a common register to configure double
buffering point and transmission line for both HDMI EMPs and DP VRR related
packets.

Currently, we do not support VRR for either native HDMI or via PCON.
However we need to configure this for DP SDP case. As per the spec,
program the register to set Vsync start as the double buffering point
for DP AS SDP.

v2:
-Make the helper more readable. (Jani)
-Add more information in commit message and comment.

Bspec:70984, 71197
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Tested-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/20250505033911.393628-1-ankit.k.nautiyal@intel.com
2025-05-19 15:08:22 +05:30
Mitul Golani
de065ceeaa drm/i915: Update trans_vrr_ctl flag when cmrr is computed
Add/update trans_vrr_ctl flag when crtc_state->cmrr.enable
is set, With this commit setting the stage for subsequent
CMRR enablement.

--v2:
- Check pipe active state in cmrr enabling. [Jani]
- Remove usage of bitwise OR on booleans. [Jani]
- Revert unrelated changes. [Jani]
- Update intel_vrr_enable, vrr and cmrr enable conditions. [Jani]
- Simplify whole if-ladder in intel_vrr_enable. [Jani]
- Revert patch restructuring mistakes in intel_vrr_get_config. [Jani]

--v3:
- Check pipe active state in cmrr disabling.[Jani]
- Correct messed up condition in intel_vrr_enable. [Jani]

--v4:
- Removing RFC tag.

--v5:
- CMRR handling in co-existatnce of LRR and DRRS.

--v7:
- Rebase on top of AS SDP merge.

--v8:
- Remove cmrr_enabling/disabling and update commit message. (Ankit)

--v9:
- Revert removed line(Ankit).

Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240610072203.24956-5-mitulkumar.ajitkumar.golani@intel.com
2024-06-11 09:58:09 +05:30
Mitul Golani
0617334033 drm/i915: Define and compute Transcoder CMRR registers
Add register definitions for Transcoder Fixed Average
Vtotal mode/CMRR function, with the necessary bitfields.
Compute these registers when CMRR is enabled, extending
Adaptive refresh rate capabilities.

--v2:
- Use intel_de_read64_2x32 in intel_vrr_get_config. [Jani]
- Fix indent and order based on register offset. [Jani]

--v3:
- Removing RFC tag.

--v4:
- Update place holder for CMRR register definition. (Jani)

--v5:
- Add CMRR register definitions to a separate file intel_vrr_reg.h.

--v6:
- Fixed indentation. (Jani)
- Add dependency header intel_display_reg_defs.h. (Jani)
- Rename file name to intel_vrr_regs.h instead of reg.h (Jani)

--v7:
- Remove adding CMRR flag to vrr_ctl register during set_transcoder_timing,
as it is already being done during intel_vrr_enable. (Ankit)

Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240610072203.24956-4-mitulkumar.ajitkumar.golani@intel.com
2024-06-11 09:58:06 +05:30
Mitul Golani
6eb8276188 drm/i915: Separate VRR related register definitions
Move VRR related register definitions to a separate file called
intel_vrr_regs.h.

Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240610072203.24956-3-mitulkumar.ajitkumar.golani@intel.com
2024-06-11 09:58:03 +05:30