From: Tomas Winkler <tomas.winkler@intel.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Jani Nikula <jani.nikula@linux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: linux-mtd@lists.infradead.org, intel-gfx@lists.freedesktop.org,
Tomas Winkler <tomas.winkler@intel.com>,
Alexander Usyskin <alexander.usyskin@intel.com>,
Vitaly Lubart <vitaly.lubart@intel.com>
Subject: [RFC PATCH 0/9] drm/i915/spi: discrete graphics internal spi
Date: Tue, 16 Feb 2021 20:19:16 +0200 [thread overview]
Message-ID: <20210216181925.650082-1-tomas.winkler@intel.com> (raw)
Intel discrete graphic devices have internal spi storage, that holds
firmware and oprom images. The spi device is exposed to the user space
via mtd framework to be accessed during manufacturing.
The device is hardware locked after manufacturing and only read access
is provided.
The i915 plays role of a multi function device (mfd) and spi device
is exposed as its child device. i915_spi platform driver binds to
this device.
Because the graphic card may undergo reset at any time and basically hot
unplug all its child devices, this series also provides a fix to the mtd
framework to make the reset graceful.
Tomas Winkler (9):
drm/i915/spi: add spi device for discrete graphics
drm/i915/spi: intel_spi_region map
drm/i915/spi: add driver for on-die spi device
drm/i915/spi: implement region enumeration
drm/i915/spi: implement spi access functions
drm/i915/spi: spi register with mtd
drm/i915/spi: mtd: implement access handlers
drm/i915/spi: serialize spi access
mtd: use refcount to prevent corruption
drivers/gpu/drm/i915/Kconfig | 3 +
drivers/gpu/drm/i915/Makefile | 6 +
drivers/gpu/drm/i915/i915_drv.c | 9 +
drivers/gpu/drm/i915/i915_drv.h | 4 +
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/spi/intel_spi.c | 62 +++
drivers/gpu/drm/i915/spi/intel_spi.h | 24 +
drivers/gpu/drm/i915/spi/intel_spi_drv.c | 675 +++++++++++++++++++++++
drivers/mtd/mtdcore.c | 63 ++-
drivers/mtd/mtdcore.h | 1 +
drivers/mtd/mtdpart.c | 13 +-
include/linux/mtd/mtd.h | 2 +-
12 files changed, 831 insertions(+), 32 deletions(-)
create mode 100644 drivers/gpu/drm/i915/spi/intel_spi.c
create mode 100644 drivers/gpu/drm/i915/spi/intel_spi.h
create mode 100644 drivers/gpu/drm/i915/spi/intel_spi_drv.c
--
2.26.2
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
WARNING: multiple messages have this Message-ID (diff)
From: Tomas Winkler <tomas.winkler@intel.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Jani Nikula <jani.nikula@linux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: linux-mtd@lists.infradead.org, intel-gfx@lists.freedesktop.org,
Tomas Winkler <tomas.winkler@intel.com>,
Alexander Usyskin <alexander.usyskin@intel.com>,
Vitaly Lubart <vitaly.lubart@intel.com>
Subject: [Intel-gfx] [RFC PATCH 0/9] drm/i915/spi: discrete graphics internal spi
Date: Tue, 16 Feb 2021 20:19:16 +0200 [thread overview]
Message-ID: <20210216181925.650082-1-tomas.winkler@intel.com> (raw)
Intel discrete graphic devices have internal spi storage, that holds
firmware and oprom images. The spi device is exposed to the user space
via mtd framework to be accessed during manufacturing.
The device is hardware locked after manufacturing and only read access
is provided.
The i915 plays role of a multi function device (mfd) and spi device
is exposed as its child device. i915_spi platform driver binds to
this device.
Because the graphic card may undergo reset at any time and basically hot
unplug all its child devices, this series also provides a fix to the mtd
framework to make the reset graceful.
Tomas Winkler (9):
drm/i915/spi: add spi device for discrete graphics
drm/i915/spi: intel_spi_region map
drm/i915/spi: add driver for on-die spi device
drm/i915/spi: implement region enumeration
drm/i915/spi: implement spi access functions
drm/i915/spi: spi register with mtd
drm/i915/spi: mtd: implement access handlers
drm/i915/spi: serialize spi access
mtd: use refcount to prevent corruption
drivers/gpu/drm/i915/Kconfig | 3 +
drivers/gpu/drm/i915/Makefile | 6 +
drivers/gpu/drm/i915/i915_drv.c | 9 +
drivers/gpu/drm/i915/i915_drv.h | 4 +
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/spi/intel_spi.c | 62 +++
drivers/gpu/drm/i915/spi/intel_spi.h | 24 +
drivers/gpu/drm/i915/spi/intel_spi_drv.c | 675 +++++++++++++++++++++++
drivers/mtd/mtdcore.c | 63 ++-
drivers/mtd/mtdcore.h | 1 +
drivers/mtd/mtdpart.c | 13 +-
include/linux/mtd/mtd.h | 2 +-
12 files changed, 831 insertions(+), 32 deletions(-)
create mode 100644 drivers/gpu/drm/i915/spi/intel_spi.c
create mode 100644 drivers/gpu/drm/i915/spi/intel_spi.h
create mode 100644 drivers/gpu/drm/i915/spi/intel_spi_drv.c
--
2.26.2
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next reply other threads:[~2021-02-16 18:21 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-16 18:19 Tomas Winkler [this message]
2021-02-16 18:19 ` [Intel-gfx] [RFC PATCH 0/9] drm/i915/spi: discrete graphics internal spi Tomas Winkler
2021-02-16 18:19 ` [RFC PATCH 1/9] drm/i915/spi: add spi device for discrete graphics Tomas Winkler
2021-02-16 18:19 ` [Intel-gfx] " Tomas Winkler
2021-02-17 10:42 ` Jani Nikula
2021-02-17 10:42 ` [Intel-gfx] " Jani Nikula
2021-02-17 17:14 ` Lucas De Marchi
2021-02-17 17:14 ` [Intel-gfx] " Lucas De Marchi
2021-02-17 19:02 ` Winkler, Tomas
2021-02-17 19:02 ` [Intel-gfx] " Winkler, Tomas
2021-02-16 18:19 ` [RFC PATCH 2/9] drm/i915/spi: intel_spi_region map Tomas Winkler
2021-02-16 18:19 ` [Intel-gfx] " Tomas Winkler
2021-02-17 10:46 ` Jani Nikula
2021-02-17 10:46 ` [Intel-gfx] " Jani Nikula
2021-02-17 20:45 ` Winkler, Tomas
2021-02-17 20:45 ` [Intel-gfx] " Winkler, Tomas
2021-02-22 10:17 ` Jani Nikula
2021-02-22 10:17 ` [Intel-gfx] " Jani Nikula
2021-02-22 11:30 ` Winkler, Tomas
2021-02-22 11:30 ` [Intel-gfx] " Winkler, Tomas
2021-02-16 18:19 ` [RFC PATCH 3/9] drm/i915/spi: add driver for on-die spi device Tomas Winkler
2021-02-16 18:19 ` [Intel-gfx] " Tomas Winkler
2021-02-17 10:56 ` Jani Nikula
2021-02-17 10:56 ` [Intel-gfx] " Jani Nikula
2021-02-17 20:58 ` Winkler, Tomas
2021-02-17 20:58 ` [Intel-gfx] " Winkler, Tomas
2021-02-18 9:49 ` Lucas De Marchi
2021-02-18 9:49 ` Lucas De Marchi
2021-02-18 10:50 ` Winkler, Tomas
2021-02-18 10:50 ` Winkler, Tomas
2021-02-19 6:06 ` Winkler, Tomas
2021-02-19 6:06 ` Winkler, Tomas
2021-02-19 22:59 ` Lucas De Marchi
2021-02-19 22:59 ` Lucas De Marchi
2021-02-20 17:56 ` Winkler, Tomas
2021-02-20 17:56 ` Winkler, Tomas
2021-02-16 18:19 ` [RFC PATCH 4/9] drm/i915/spi: implement region enumeration Tomas Winkler
2021-02-16 18:19 ` [Intel-gfx] " Tomas Winkler
2021-02-16 18:19 ` [RFC PATCH 5/9] drm/i915/spi: implement spi access functions Tomas Winkler
2021-02-16 18:19 ` [Intel-gfx] " Tomas Winkler
2021-02-16 18:19 ` [RFC PATCH 6/9] drm/i915/spi: spi register with mtd Tomas Winkler
2021-02-16 18:19 ` [Intel-gfx] " Tomas Winkler
2021-02-16 18:19 ` [RFC PATCH 7/9] drm/i915/spi: mtd: implement access handlers Tomas Winkler
2021-02-16 18:19 ` [Intel-gfx] " Tomas Winkler
2021-02-16 18:19 ` [RFC PATCH 8/9] drm/i915/spi: serialize spi access Tomas Winkler
2021-02-16 18:19 ` [Intel-gfx] " Tomas Winkler
2021-02-16 18:19 ` [RFC PATCH 9/9] mtd: use refcount to prevent corruption Tomas Winkler
2021-02-16 18:19 ` [Intel-gfx] " Tomas Winkler
2021-02-16 18:45 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915/spi: discrete graphics internal spi Patchwork
2021-02-16 18:47 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2021-02-16 19:14 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-02-16 20:35 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2021-02-16 23:01 ` [RFC PATCH 0/9] " Richard Weinberger
2021-02-16 23:01 ` [Intel-gfx] " Richard Weinberger
2021-02-17 8:34 ` Winkler, Tomas
2021-02-17 8:34 ` [Intel-gfx] " Winkler, Tomas
2021-02-21 7:10 ` Winkler, Tomas
2021-02-21 7:10 ` [Intel-gfx] " Winkler, Tomas
2021-02-22 22:38 ` Richard Weinberger
2021-02-22 22:38 ` [Intel-gfx] " Richard Weinberger
2021-02-23 6:31 ` Winkler, Tomas
2021-02-23 6:31 ` [Intel-gfx] " Winkler, Tomas
2021-02-28 6:52 ` Winkler, Tomas
2021-02-28 6:52 ` [Intel-gfx] " Winkler, Tomas
2021-02-17 10:36 ` Jani Nikula
2021-02-17 10:36 ` [Intel-gfx] " Jani Nikula
2021-02-17 12:50 ` Winkler, Tomas
2021-02-17 12:50 ` [Intel-gfx] " Winkler, Tomas
2021-02-17 13:35 ` Jani Nikula
2021-02-17 13:35 ` [Intel-gfx] " Jani Nikula
2021-02-17 18:33 ` Rodrigo Vivi
2021-02-17 18:33 ` Rodrigo Vivi
2021-02-17 11:02 ` Jani Nikula
2021-02-17 11:02 ` [Intel-gfx] " Jani Nikula
2021-02-17 13:56 ` Winkler, Tomas
2021-02-17 13:56 ` [Intel-gfx] " Winkler, Tomas
2021-03-01 12:33 ` Jani Nikula
2021-03-01 12:33 ` [Intel-gfx] " Jani Nikula
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210216181925.650082-1-tomas.winkler@intel.com \
--to=tomas.winkler@intel.com \
--cc=alexander.usyskin@intel.com \
--cc=intel-gfx@lists.freedesktop.org \
--cc=jani.nikula@linux.intel.com \
--cc=joonas.lahtinen@linux.intel.com \
--cc=linux-mtd@lists.infradead.org \
--cc=miquel.raynal@bootlin.com \
--cc=richard@nod.at \
--cc=rodrigo.vivi@intel.com \
--cc=vigneshr@ti.com \
--cc=vitaly.lubart@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.