[00/12] VRAM Self Refresh

Message

Anshuman Gupta April 1, 2025, 3:32 p.m. UTC

This revision has fixed the below review comment on RFC[1] series.

PCIe ACPI Patches:
- Break the _DSM {10, 11} Patch for different _DSM Method "D3cold Aux Power Limit", "PERST# Assertion Delay"
  (Bjorn Helgaas)
- Remove the Battlemage-specific language from commit log and Document that this implementation
  does not track and aggregate requests from all child devices `below the Downstream Port.
  (Bjorn Helgaas)
- Add Rev 3.3 along with Section in commit log.
- Address cosmetic review comment.
- Added a notifier block.

Xe Pacthes:
- %s/VRAM_/VRAM_SR/
  (Rodrigo)
- %s/d3cold.allowed/d3cold.target_state
  (Rodrigo)
- Add has_vrsr flag and refactor pci_acpi_aux_power_setup.
  (Rodrigo)
- Reorder the xe_d3_state enum.
  (Karthik)
- Use default VGA gpu to enable VRSR.


VRAM Self Refresh

This revision has fixed the below review cpmment on RFC[1] series.

PCIe ACPI Patches:
- Break the _DSM {10, 11} Patch for different _DSM Method "D3cold Aux Power Limit", "PERST# Assertion Delay"
  (Bjorn Helgaas)
- Remove the Battlemage-specific language from commit log and Document that this implementation
  does not track and aggregate requests from all child devices `below the Downstream Port.
  (Bjorn Helgaas)
- Add Rev 3.3 along with Section in commit log.
- Address cosmetic review comment.
- Added a notifier block.

Xe Patches:
- %s/VRAM_/VRAM_SR/
  (Rodrigo)
- %s/d3cold.allowed/d3cold.target_state
  (Rodrigo)
- Add has_vrsr flag and refactor pci_acpi_aux_power_setup.
  (Rodrigo)
- Reorder the xe_d3_state enum.
  (Karthik)
- Use default VGA gpu to enable VRSR.

[1] https://patchwork.freedesktop.org/series/145342/

Anshuman Gupta (8):
  PCI/ACPI: Add D3cold Aux Power Limit_DSM method
  PCI/ACPI: Add PERST# Assertion Delay _DSM method
  PCI/ACPI: Add aux power grant notifier
  drm/xe/vrsr: Detect VRSR Capability
  drm/xe: Add PCIe ACPI Aux Power notifier
  drm/xe/vrsr: Refactor d3cold.allowed to a enum
  drm/xe/pm: D3Cold target state
  drm/xe/vrsr: Enable VRSR

Badal Nilawar (4):
  drm/xe/vrsr: Introduce flag has_vrsr
  drm/xe/vrsr: Initialize VRSR feature
  drm/xe/vrsr: Enable VRSR on default VGA boot device
  drm/xe/vrsr: Introduce a debugfs node named vrsr_capable

 drivers/gpu/drm/xe/display/xe_display.c |  28 ++-
 drivers/gpu/drm/xe/display/xe_display.h |   2 +
 drivers/gpu/drm/xe/regs/xe_regs.h       |   3 +
 drivers/gpu/drm/xe/xe_debugfs.c         |  20 ++
 drivers/gpu/drm/xe/xe_device_types.h    |  15 +-
 drivers/gpu/drm/xe/xe_pci.c             |  13 +-
 drivers/gpu/drm/xe/xe_pcode_api.h       |   8 +
 drivers/gpu/drm/xe/xe_pm.c              | 236 ++++++++++++++++++++++--
 drivers/gpu/drm/xe/xe_pm.h              |   9 +-
 drivers/pci/pci-acpi.c                  | 159 ++++++++++++++++
 include/linux/pci-acpi.h                |  26 +++
 11 files changed, 490 insertions(+), 29 deletions(-)