drm/xe/sysctrl: Add system controller event support

System controller reports different types of events to GFX endpoint for
different usecases, add initial support for them. This will be further
ext

drm/xe/sysctrl: Add system controller event support

System controller reports different types of events to GFX endpoint for
different usecases, add initial support for them. This will be further
extended to service those usecases.

Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Mallesh Koujalagi <mallesh.koujalagi@intel.com>
Link: https://patch.msgid.link/20260428054826.1202076-3-raag.jadav@intel.com
Signed-off-by: Riana Tauro <riana.tauro@intel.com>

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drm/xe/sysctrl: Add system controller interrupt handler

Add system controller interrupt handler which is denoted by 11th bit in
GFX master interrupt register. While at it, add worker for scheduling

drm/xe/sysctrl: Add system controller interrupt handler

Add system controller interrupt handler which is denoted by 11th bit in
GFX master interrupt register. While at it, add worker for scheduling
system controller work.

Co-developed-by: Soham Purkait <soham.purkait@intel.com>
Signed-off-by: Soham Purkait <soham.purkait@intel.com>
Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Mallesh Koujalagi <mallesh.koujalagi@intel.com>
Reviewed-by: Riana Tauro <riana.tauro@intel.com>
Link: https://patch.msgid.link/20260428054826.1202076-2-raag.jadav@intel.com
Signed-off-by: Riana Tauro <riana.tauro@intel.com>

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drm/xe/xe_sysctrl: Add System Controller power management support

Add resume handling for System Controller to support system (S3/S4) and
runtime power management transitions.

On resume, restore So

drm/xe/xe_sysctrl: Add System Controller power management support

Add resume handling for System Controller to support system (S3/S4) and
runtime power management transitions.

On resume, restore SoC remapper configuration and mailbox interface to
re‑establish communication with firmware.

Signed-off-by: Anoop Vijay <anoop.c.vijay@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Badal Nilawar <badal.nilawar@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patch.msgid.link/20260327131837.2192929-15-anoop.c.vijay@intel.com

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drm/xe/xe_sysctrl: Add System Controller mailbox communication support

Add mailbox communication layer required for interacting with System
Controller firmware, enabling command submission and respo

drm/xe/xe_sysctrl: Add System Controller mailbox communication support

Add mailbox communication layer required for interacting with System
Controller firmware, enabling command submission and response handling.

This patch implements command/response handling logic, including error
and timeout handling.

Signed-off-by: Anoop Vijay <anoop.c.vijay@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patch.msgid.link/20260327131837.2192929-14-anoop.c.vijay@intel.com

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drm/xe/xe_sysctrl: Add System Controller initialization support

Add initialization and cleanup infrastructure for System Controller
subsystem and integrate it into xe device probe path.

During init

drm/xe/xe_sysctrl: Add System Controller initialization support

Add initialization and cleanup infrastructure for System Controller
subsystem and integrate it into xe device probe path.

During initialization, platform support is checked via has_sysctrl
capability flag and the mailbox region is configured through SoC
remapper interface.

Signed-off-by: Anoop Vijay <anoop.c.vijay@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patch.msgid.link/20260327131837.2192929-13-anoop.c.vijay@intel.com

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