linux-kernel - [PATCH v8 00/16] GSC support for XeHP SDV and DG2

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Date:   Wed,  7 Sep 2022 18:57:57 +0300
From:   Tomas Winkler <tomas.winkler@...el.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Tomas Winkler <tomas.winkler@...el.com>,
        Alexander Usyskin <alexander.usyskin@...el.com>,
        Vitaly Lubart <vitaly.lubart@...el.com>,
        Daniele Ceraolo Spurio <daniele.ceraolospurio@...el.com>
Subject: [PATCH v8 00/16] GSC support for XeHP SDV and DG2

Add GSC support for XeHP SDV and DG2 platforms.

The series includes changes for the mei driver:
- add ability to use polling instead of interrupts
- add ability to use extended timeouts
- setup extended operational memory for GSC

The series includes changes for the i915 driver:
- allocate extended operational memory for GSC
- GSC on XeHP SDV offsets and definitions

This patch set should be merged via gfx tree as
the auxiliary device belongs there.

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@...el.com>


V2: rebase over merged DG1 series and DG2 enablement patch,
    fix commit messages

V3: rebase over latest tip

V4: add missed changelog in pxp dbugfs patch

V5: rebase over latest tip
    fix changelog in pxp dbugfs patch
    put HAX patch last to the ease of merging
    reorder patches in the series

V6: change prefix from 'drm/i915/gsc:' to 'mei' in patch:
        mei: add slow_fw flag to the mei auxiliary device
    Address following checkpatch warnings:
        CHECK:PREFER_KERNEL_TYPES: Prefer kernel type 'u32' over 'uint32_t'
        FILE: drivers/misc/mei/mkhi.h:54:
        +	uint32_t flags; 
        
        -:51: CHECK:UNNECESSARY_PARENTHESES: Unnecessary parentheses around 'cldev->bus->pxp_mode != MEI_DEV_PXP_INIT'
        #51: FILE: drivers/misc/mei/bus-fixup.c:257:
        +	if (!cldev->bus->fw_f_fw_ver_supported &&
        +	    (cldev->bus->pxp_mode != MEI_DEV_PXP_INIT)
    
    Remove some spurious code formatting changes in:
    drm/i915/gsc: allocate extended operational memory in LMEM

V7: Add new patch to add kdoc for mei_aux_device structure.
    Rename slow_fw to slow_firmware flag.
    Use drm_dbg/err() functions instead of dev_dbg/err() in i195
    codebase.

V8:
   1. Update copyright dates
   1. Add kdoc and comments to mei_me_polling_thread()
   2. Fix pgi->d0i3 timeout in mei_me_d0i3_enter_sync()
   3. <linux/types.h> is enough for mkhi header.
   4. drop MCHI_GROUP_ID definition it is not used
   5. Setup default PXP state
   6. Add PXP mode kdoc
   7. Add new patch mei: drop ready bits check after start


Alexander Usyskin (5):
  drm/i915/gsc: add slow_firmware flag to the gsc device definition
  drm/i915/gsc: add GSC XeHP SDV platform definition
  mei: gsc: wait for reset thread on stop
  mei: extend timeouts on slow devices.
  mei: drop ready bits check after start

Daniele Ceraolo Spurio (1):
  HAX: drm/i915: force INTEL_MEI_GSC on for CI

Tomas Winkler (7):
  mei: add kdoc for struct mei_aux_device
  mei: add slow_firmware flag to the mei auxiliary device
  mei: gsc: use polling instead of interrupts
  mei: mkhi: add memory ready command
  mei: gsc: setup gsc extended operational memory
  mei: debugfs: add pxp mode to devstate in debugfs
  drm/i915/gsc: allocate extended operational memory in LMEM

Vitaly Lubart (3):
  drm/i915/gsc: skip irq initialization if using polling
  mei: bus: export common mkhi definitions into a separate header
  mei: gsc: add transition to PXP mode in resume flow

 drivers/gpu/drm/i915/Kconfig.debug  |   1 +
 drivers/gpu/drm/i915/gt/intel_gsc.c | 118 ++++++++++++++++++++++--
 drivers/gpu/drm/i915/gt/intel_gsc.h |   3 +
 drivers/misc/mei/bus-fixup.c        | 106 ++++++++++++++-------
 drivers/misc/mei/client.c           |  16 ++--
 drivers/misc/mei/debugfs.c          |  19 +++-
 drivers/misc/mei/gsc-me.c           |  77 ++++++++++++++--
 drivers/misc/mei/hbm.c              |  14 +--
 drivers/misc/mei/hw-me-regs.h       |   9 +-
 drivers/misc/mei/hw-me.c            | 138 ++++++++++++++++++++++++----
 drivers/misc/mei/hw-me.h            |  17 +++-
 drivers/misc/mei/hw-txe.c           |   4 +-
 drivers/misc/mei/hw.h               |   7 +-
 drivers/misc/mei/init.c             |  35 ++++---
 drivers/misc/mei/main.c             |   4 +-
 drivers/misc/mei/mei_dev.h          |  35 ++++++-
 drivers/misc/mei/mkhi.h             |  69 ++++++++++++++
 drivers/misc/mei/pci-me.c           |   4 +-
 include/linux/mei_aux.h             |  12 +++
 19 files changed, 574 insertions(+), 114 deletions(-)
 create mode 100644 drivers/misc/mei/mkhi.h

-- 
2.37.2