Commit Graph

23 Commits

Author SHA1 Message Date
Lee Jones 63edb0310a remoteproc: Supply controller driver for ST's Remote Processors
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2016-01-29 17:26:49 -08:00
Dave Gerlach a01bc0d5f5 remoteproc/wkup_m3: add a remoteproc driver for TI Wakeup M3
Add a remoteproc driver to load the firmware and boot a small
Wakeup M3 processor present on TI AM33xx and AM43xx SoCs. This
Wakeup M3 remote processor is an integrated Cortex M3 that allows
the SoC to enter the lowest possible power state by taking control
from the MPU after it has gone into its own low power state and
shutting off any additional peripherals.

The Wakeup M3 processor has two internal memory regions - 16 kB of
unified instruction memory called UMEM used to store executable
code, and 8 kB of data memory called DMEM used for all data sections.
The Wakeup M3 processor executes its code entirely from within the
UMEM and uses the DMEM for any data. It does not use any external
memory or any other external resources. The device address view has
the UMEM at address 0x0 and DMEM at address 0x80000, and these are
computed automatically within the driver based on relative address
calculation from the corresponding device tree IOMEM resources.
These device addresses are used to aid the core remoteproc ELF
loader code to properly translate and load the firmware segments
through the .rproc_da_to_va ops.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2015-06-17 09:58:08 +03:00
Arnd Bergmann 8c0945240e remoteproc: da8xx: don't select CMA on no-MMU
We can only use CMA on systems that have an MMU, because of
the requirement to use memory migration. NOMMU systems are
rather constrained to start with, but it seems reasonable
to assume that DMA allocations can still succeed in the
constrained case for remoteproc on NOMMU, so this patch
changes the da8xx implementation to not rely on CMA when
the MMU is disabled.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Robert Tivy <rtivy@ti.com>
2014-06-17 17:09:36 +02:00
Suman Anna c869c75c16 mailbox/omap: move the OMAP mailbox framework to drivers
The mailbox hardware (in OMAP) uses a queued mailbox interrupt
mechanism that provides a communication channel between processors
through a set of registers and their associated interrupt signals
by sending and receiving messages.

The OMAP mailbox framework/driver code is moved to be under
drivers/mailbox, in preparation for adapting to a common mailbox
driver framework. This allows the build for OMAP mailbox to be
enabled (it was disabled during the multi-platform support).

As part of the migration from plat and mach code:
- Kconfig symbols have been renamed to build OMAP1 or OMAP2+ drivers.
- mailbox.h under plat-omap/plat/include has been split into a public
  and private header files. The public header has only the API related
  functions and types.
- The module name mailbox.ko from plat-omap is changed to
  omap-mailbox.ko
- The module name mailbox_mach.ko from mach-omapX is changed as
    mailbox_omap1.ko for OMAP1
    mailbox_omap2.ko for OMAP2+

Cc: Tony Lindgren <tony@atomide.com>
[gregkh@linuxfoundation.org: ack for staging part]
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Omar Ramirez Luna <omar.ramirez@copitl.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
2013-06-11 11:41:51 -05:00
Linus Torvalds de9c9f86be This pull request contains:
- Some refactoring, cleanups and small improvements
   from Sjur Brændeland. The improvements are mainly
   about better supporting varios virtio properties
   (such as virtio's config space, status and features).
   I now see that I messed up while commiting one of Sjur's
   patches and erroneously put myself as the author, as well
   as letting a nasty typo sneak in. I will not fix this in
   order to avoid rebasing the patches. Sjur - sorry!
 - A new remoteproc driver for OMAP-L13x (technically a
   DaVinci platform) from Robert Tivy.
 - Extend OMAP support to OMAP5 as well, from Vincent Stehlé.
 - Fix Kconfig VIRTUALIZATION dependency, from Suman Anna
   (a non-critical fix which arrived late during the rc cycle).
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Merge tag 'remoteproc-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc

Pull remoteproc update from Ohad Ben-Cohen:

 - Some refactoring, cleanups and small improvements from Sjur
   Brændeland.  The improvements are mainly about better supporting
   varios virtio properties (such as virtio's config space, status and
   features).  I now see that I messed up while commiting one of Sjur's
   patches and erroneously put myself as the author, as well as letting
   a nasty typo sneak in.  I will not fix this in order to avoid
   rebasing the patches.  Sjur - sorry!

 - A new remoteproc driver for OMAP-L13x (technically a DaVinci
   platform) from Robert Tivy.

 - Extend OMAP support to OMAP5 as well, from Vincent Stehlé.

 - Fix Kconfig VIRTUALIZATION dependency, from Suman Anna (a
   non-critical fix which arrived late during the rc cycle).

* tag 'remoteproc-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
  remoteproc: fix kconfig dependencies for VIRTIO
  remoteproc/davinci: add a remoteproc driver for OMAP-L13x DSP
  remoteproc: support default firmware name in rproc_alloc()
  remoteproc/omap: support OMAP5 too
  remoteproc: set vring addresses in resource table
  remoteproc: support virtio config space.
  remoteproc: perserve resource table data
  remoteproc: calculate max_notifyid by counting vrings
  remoteproc: code cleanup of resource parsing
  remoteproc: parse STE-firmware and find resource table address
  remoteproc: add find_loaded_rsc_table firmware ops
  remoteproc: refactor rproc_elf_find_rsc_table()
2013-05-07 14:04:56 -07:00
Suman Anna b9777859ec remoteproc: fix kconfig dependencies for VIRTIO
Fix this:

warning: (VIRTIO_PCI && VIRTIO_MMIO && REMOTEPROC && RPMSG) selects VIRTIO which has unmet direct dependencies (VIRTUALIZATION)

Cc: stable@vger.kernel.org
Signed-off-by: Suman Anna <s-anna@ti.com>
[edit commit log]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2013-04-21 16:30:22 +03:00
Robert Tivy 13be5432d8 remoteproc/davinci: add a remoteproc driver for OMAP-L13x DSP
Adding a new remoteproc driver for OMAP-L13x DSP

Signed-off-by: Robert Tivy <rtivy@ti.com>
[removed 'EXPERIMENTAL' and fixed some indentation issues]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2013-04-15 09:23:40 +03:00
Robert Tivy c7426bce59 remoteproc: fix FW_CONFIG typo
Fix obvious typo introduced in commit e121aefa7d
("remoteproc: fix missing CONFIG_FW_LOADER configurations").

Cc: stable@vger.kernel.org
Signed-off-by: Robert Tivy <rtivy@ti.com>
[cc stable, slight subject change]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2013-04-07 15:11:27 +03:00
Vincent Stehlé e5bc0294ca remoteproc/omap: support OMAP5 too
This allows building remoteproc on OMAP5 too.

Signed-off-by: Vincent Stehlé <v-stehle@ti.com>
[edit commit log]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2013-04-07 14:06:18 +03:00
Ohad Ben-Cohen a2b950ac7b remoteproc: perserve resource table data
Copy resource table from first to second firmware loading.
After firmware is loaded to memory, update the vdevs resource
pointer to the resource table kept in device memory.

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Acked-by: Ido Yariv <ido@wizery.com>
[rebase, terminology and style changes]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2013-04-07 14:06:07 +03:00
Linus Torvalds 3298a3511f arm-soc: multiplatform support
Converting more ARM platforms to multiplatform support. This time, OMAP
 gets converted, which is a major step since this is by far the largest
 platform in terms of code size. The same thing happens to the vt8500
 platform.
 
 Conflicts include:
 * Two mach/uncompress.h files are removed, the changes made to them
   elsewhere can be discarded now.
 * Moving the OMAP4 irq_match array has context clashes with turning
   omap4_sar_ram_init into an omap_early_initcall()
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Merge tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC multiplatform support from Arnd Bergmann:
 "Converting more ARM platforms to multiplatform support.  This time,
  OMAP gets converted, which is a major step since this is by far the
  largest platform in terms of code size.  The same thing happens to the
  vt8500 platform."

* tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  net: cwdavinci_cpdma: export symbols for cpsw
  remoteproc: omap: depend on OMAP_MBOX_FWK
  [media] davinci: do not include mach/hardware.h
  ARM: OMAP2+: Make sure files with omap initcalls include soc.h
  ARM: OMAP2+: Include soc.h to drm.c to fix compiling
  ARM: OMAP2+: Fix warning for hwspinlock omap_postcore_initcall
  ARM: multi_v7_defconfig: add ARCH_ZYNQ
  ARM: multi_v7_defconfig: remove unnecessary CONFIG_GPIOLIB
  arm: vt8500: Remove remaining mach includes
  arm: vt8500: Convert debug-macro.S to be multiplatform friendly
  arm: vt8500: Remove single platform Kconfig options
  ARM: OMAP2+: Remove now obsolete uncompress.h and debug-macro.S
  ARM: OMAP2+: Add minimal support for booting vexpress
  ARM: OMAP2+: Enable ARCH_MULTIPLATFORM support
  ARM: OMAP2+: Disable code that currently does not work with multiplaform
  ARM: OMAP2+: Add multiplatform debug_ll support
  ARM: OMAP: Fix dmaengine init for multiplatform
  ARM: OMAP: Fix i2c cmdline initcall for multiplatform
  ARM: OMAP2+: Use omap initcalls
  ARM: OMAP2+: Limit omap initcalls to omap only on multiplatform kernels
2013-02-21 15:20:41 -08:00
Arnd Bergmann 0bef6c933f remoteproc: omap: depend on OMAP_MBOX_FWK
Patch a62a6e98 "ARM: OMAP2+: Disable code that currently does not work
with multiplaform" makes the OMAP_MBOX_FWK option depend on !MULTIPLATFORM,
which means we cannot simply select that symbol from OMAP_REMOTEPROC.

Turning the 'select' into 'depends on' ensures that all dependencies
are correct until OMAP_MBOX_FWK loses its dependency.

Without this patch, building allmodconfig results in:

drivers/remoteproc/omap_remoteproc.c:31:26: fatal error: plat/mailbox.h: No such file or directory

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Ohad Ben-Cohen <ohad@wizery.com>
2013-02-15 13:16:11 +01:00
Kees Cook eb367cb620 drivers/remoteproc: remove depends on CONFIG_EXPERIMENTAL
The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

CC: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-21 14:52:44 -08:00
Ohad Ben-Cohen 2ed6d29c72 remoteproc: select VIRTIO to avoid build breakage
drivers/built-in.o: In function `rproc_virtio_finalize_features':
remoteproc_virtio.c:(.text+0x2f9a02): undefined reference to `vring_transport_features'
drivers/built-in.o: In function `rproc_virtio_del_vqs':
remoteproc_virtio.c:(.text+0x2f9a74): undefined reference to `vring_del_virtqueue'
drivers/built-in.o: In function `rproc_virtio_find_vqs':
remoteproc_virtio.c:(.text+0x2f9c44): undefined reference to `vring_new_virtqueue'
drivers/built-in.o: In function `rproc_add_virtio_dev':
(.text+0x2f9e2c): undefined reference to `register_virtio_device'
drivers/built-in.o: In function `rproc_vq_interrupt':
(.text+0x2f9db7): undefined reference to `vring_interrupt'
drivers/built-in.o: In function `rproc_remove_virtio_dev':
(.text+0x2f9e9f): undefined reference to `unregister_virtio_device'

Cc: stable@vger.kernel.org
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2012-10-02 09:57:14 +02:00
Sjur Brændeland ec4d02d918 remoteproc: Add STE modem driver
Add support for the STE modem shared memory driver.
This driver hooks into the remoteproc framework
in order to manage configuration and the virtio
devices.

This driver adds custom firmware handlers, because
STE modem uses a custom firmware layout.

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
cc: Linus Walleij <linus.walleij@linaro.org>
cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
[ohad: validate mdev->ops, move setup() to probe/remove, trivial style changes]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2012-09-22 16:35:13 +03:00
Sjur Brændeland a1a7e0a33a remoteproc: Add dependency to HAS_DMA
Remoteproc relies on HAS_DMA, add this dependency in Kconfig.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2012-09-18 07:05:06 +03:00
Ohad Ben-Cohen e121aefa7d remoteproc: fix missing CONFIG_FW_LOADER configurations
Remoteproc requires user space firmware loading support, so
let's select FW_LOADER explicitly to avoid painful misconfigurations
(which only show up in runtime).

Cc: stable <stable@vger.kernel.org>
Reported-by: Mark Grosen <mgrosen@ti.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2012-07-04 11:01:12 +03:00
Ohad Ben-Cohen d50394266b remoteproc/omap: fix randconfig unmet direct dependencies
OMAP_REMOTEPROC selects REMOTEPROC and RPMSG, both of which depend
on EXPERIMENTAL, so let's have OMAP_REMOTEPROC depend on EXPERIMENTAL
too, in order to avoid the below randconfig warnings.

warning: (OMAP_REMOTEPROC) selects REMOTEPROC which has unmet direct dependencies (EXPERIMENTAL)
warning: (OMAP_REMOTEPROC) selects RPMSG which has unmet direct dependencies (EXPERIMENTAL)

Cc: stable <stable@vger.kernel.org>
Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2012-07-04 10:51:10 +03:00
Ohad Ben-Cohen 9cd8eb433c remoteproc/omap: two Kconfig fixes
1. Depend on OMAP_IOMMU instead of selecting it, to fix an unmet
   direct dependency of it (and its imminent build error)
2. Set default to 'no' (achieved implicitly by dropping the 'default'
   line)

Reported-by: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Mark Grosen <mgrosen@ti.com>
Cc: Suman Anna <s-anna@ti.com>
Cc: Fernando Guzman Lugo <fernando.lugo@ti.com>
Cc: Rob Clark <rob@ti.com>
Cc: Ludovic BARRE <ludovic.barre@stericsson.com>
Cc: Loic PALLARDY <loic.pallardy@stericsson.com>
Cc: Omar Ramirez Luna <omar.luna@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>
2012-02-28 19:09:16 +02:00
Ohad Ben-Cohen 489d129a2f remoteproc: depend on EXPERIMENTAL
Remoteproc is still under development and as it gets traction we
definitely expect to do some changes in the binary format (most probably
only in the resource table, e.g. the upcoming move to TLV-based entries).

Active testing and use of remoteproc is most welcome, but we don't want
users to expect backward binary compatibility with the preliminary
images we have today.

Therefore mark remoteproc as EXPERIMENTAL, and explicitly inform the user
about this when a new remote processor is registered.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Rob Clark <rob@ti.com>
Cc: Mark Grosen <mgrosen@ti.com>
Cc: Ludovic BARRE <ludovic.barre@stericsson.com>
2012-02-22 18:28:34 +02:00
Ohad Ben-Cohen 650d65611e remoteproc: add Kconfig menu
Add a dedicated Kconfig menu for the remoteproc drivers, so they
don't show up in the main driver menu.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
2012-02-08 22:54:43 +02:00
Ohad Ben-Cohen 34ed5a33b1 remoteproc/omap: add a remoteproc driver for OMAP4
Add a remoteproc driver for OMAP4, so we can boot the dual-M3 and
and DSP subsystems.

Use the omap_device_* API to control the hardware state, and utilize
the OMAP mailbox to interrupt the remote processor when a new message
is pending (the mailbox payload is used to tell it which virtqueue was
the message placed in).

Conversely, when an inbound mailbox message arrives, tell the remoteproc
core which virtqueue is triggered.

Later we will also use the mailbox payload to signal omap-specific
events like remote crashes (which will be used to trigger remoteproc
recovery) and power management transitions. At that point we will also
extend the remoteproc core to support this.

Based on (but now quite far from) work done by Fernando Guzman Lugo
<fernando.lugo@ti.com> and Hari Kanigeri <h-kanigeri2@ti.com>.

Designed with Brian Swetland <swetland@google.com>.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Brian Swetland <swetland@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg KH <greg@kroah.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
2012-02-08 22:53:47 +02:00
Ohad Ben-Cohen 400e64df6b remoteproc: add framework for controlling remote processors
Modern SoCs typically employ a central symmetric multiprocessing (SMP)
application processor running Linux, with several other asymmetric
multiprocessing (AMP) heterogeneous processors running different instances
of operating system, whether Linux or any other flavor of real-time OS.

Booting a remote processor in an AMP configuration typically involves:
- Loading a firmware which contains the OS image
- Allocating and providing it required system resources (e.g. memory)
- Programming an IOMMU (when relevant)
- Powering on the device

This patch introduces a generic framework that allows drivers to do
that. In the future, this framework will also include runtime power
management and error recovery.

Based on (but now quite far from) work done by Fernando Guzman Lugo
<fernando.lugo@ti.com>.

ELF loader was written by Mark Grosen <mgrosen@ti.com>, based on
msm's Peripheral Image Loader (PIL) by Stephen Boyd <sboyd@codeaurora.org>.

Designed with Brian Swetland <swetland@google.com>.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Brian Swetland <swetland@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg KH <greg@kroah.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
2012-02-08 22:52:56 +02:00