[PATCH v7 00/12] mtd: add driver for Intel discrete graphics

[Usyskin, Alexander]

> On Wed, Mar 26, 2025 at 05:26:11PM +0200, Alexander Usyskin wrote:
> > Add driver for access to Intel discrete graphics card
> > internal NVM device.
> > Expose device on auxiliary bus by i915 and Xe drivers and
> > provide mtd driver to register this device with MTD framework.
> >
> > This is a rewrite of "drm/i915/spi: spi access for discrete graphics"
> > and "spi: add driver for Intel discrete graphics"
> > series with connection to the Xe driver and splitting
> > the spi driver part to separate module in mtd subsystem.
> >
> > This series intended to be pushed through drm-xe-next.
> >
> > V2: Replace dev_* prints with drm_* prints in drm (xe and i915) patches.
> >     Enable NVM device on Battlemage HW (xe driver patch)
> >     Fix overwrite register address (xe driver patch)
> >     Add Rodrigo's r-b
> >
> > V3: Use devm_pm_runtime_enable to simplify flow.
> >     Drop print in i915 unload that was accidentally set as error.
> >     Drop HAS_GSC_NVM macro in line with latest Xe changes.
> >     Add more Rodrigo's r-b and Miquel's ack.
> >
> > V4: Add patch that always creates mtd master device
> >     and adjust mtd-intel-dg power management to use this device.
> >
> > V5: Fix master device creation to accomodate for devices without
> >     partitions (create partitoned master in this case)
> >     Rebase over latest drm-xe-next
> >     Add ack's
> > V6: Fix master device release (use rigth idr in release)
> >     Rebase over latest drm-xe-next
> >     Grammar and style fixes
> >
> > V7: Add patch with non-posted erase support (fix hang on BMG)
> >     Rebase over latest drm-xe-next
> 
> There are 2 things that I should had noticed earlier and mentioned to you.
> I'm sorry for forgetting that.
> 
> 1. Rebase on drm-tip branch of this repo:
> https://gitlab.freedesktop.org/drm/tip
> We merge to drm-xe-next, but development and CI happens on drm-tip.
> 
> 2. Please also send to intel-xe at lists.freedesktop.org Xe CI only runs on that
> mailing list. intel-gfx is for i915.
> 
> No need to rebase or resend right now. Let's wait for a few reviews,
> then we rebase and resend.
> 

Do not see flock of reviewers for this one...
Can you, please, review the last patch? This one is a new one.
All other are already acked.
Then I'll re-spin the series with right base and cc.

- - 
Thanks,
Sasha


> Thanks,
> Rodrigo.
> 
> >
> > Abliyev, Reuven (1):
> >   drm/xe/nvm: add support for non-posted erase
> >
> > Alexander Usyskin (11):
> >   mtd: core: always create master device
> >   mtd: add driver for intel graphics non-volatile memory device
> >   mtd: intel-dg: implement region enumeration
> >   mtd: intel-dg: implement access functions
> >   mtd: intel-dg: register with mtd
> >   mtd: intel-dg: align 64bit read and write
> >   mtd: intel-dg: wake card on operations
> >   drm/i915/nvm: add nvm device for discrete graphics
> >   drm/i915/nvm: add support for access mode
> >   drm/xe/nvm: add on-die non-volatile memory device
> >   drm/xe/nvm: add support for access mode
> >
> >  MAINTAINERS                           |   7 +
> >  drivers/gpu/drm/i915/Makefile         |   4 +
> >  drivers/gpu/drm/i915/i915_driver.c    |   6 +
> >  drivers/gpu/drm/i915/i915_drv.h       |   3 +
> >  drivers/gpu/drm/i915/i915_reg.h       |   1 +
> >  drivers/gpu/drm/i915/intel_nvm.c      | 115 ++++
> >  drivers/gpu/drm/i915/intel_nvm.h      |  15 +
> >  drivers/gpu/drm/xe/Makefile           |   1 +
> >  drivers/gpu/drm/xe/regs/xe_gsc_regs.h |   4 +
> >  drivers/gpu/drm/xe/xe_device.c        |   5 +
> >  drivers/gpu/drm/xe/xe_device_types.h  |   6 +
> >  drivers/gpu/drm/xe/xe_heci_gsc.c      |   5 +-
> >  drivers/gpu/drm/xe/xe_nvm.c           | 161 +++++
> >  drivers/gpu/drm/xe/xe_nvm.h           |  15 +
> >  drivers/gpu/drm/xe/xe_pci.c           |   6 +
> >  drivers/mtd/devices/Kconfig           |  11 +
> >  drivers/mtd/devices/Makefile          |   1 +
> >  drivers/mtd/devices/mtd_intel_dg.c    | 884
> ++++++++++++++++++++++++++
> >  drivers/mtd/mtdcore.c                 | 141 ++--
> >  drivers/mtd/mtdcore.h                 |   2 +-
> >  drivers/mtd/mtdpart.c                 |  17 +-
> >  include/linux/intel_dg_nvm_aux.h      |  29 +
> >  22 files changed, 1385 insertions(+), 54 deletions(-)
> >  create mode 100644 drivers/gpu/drm/i915/intel_nvm.c
> >  create mode 100644 drivers/gpu/drm/i915/intel_nvm.h
> >  create mode 100644 drivers/gpu/drm/xe/xe_nvm.c
> >  create mode 100644 drivers/gpu/drm/xe/xe_nvm.h
> >  create mode 100644 drivers/mtd/devices/mtd_intel_dg.c
> >  create mode 100644 include/linux/intel_dg_nvm_aux.h
> >
> > --
> > 2.43.0
> >