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>
These local symbols are used only in this file.
Fix the following sparse warnings:
drivers/remoteproc/ste_modem_rproc.c:167:27: warning: symbol 'sproc_fw_ops' was not declared. Should it be static?
drivers/remoteproc/ste_modem_rproc.c:196:25: warning: symbol 'sproc_dev_cb' was not declared. Should it be static?
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
[standartize patch title]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.
Move the call to platform_get_resource adjacent to the call to
devm_ioremap_resource to make the connection between them more clear.
A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@
- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
e = devm_ioremap_resource(e1, res);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
[simplify patch title]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
The comment above disable_irq says that it is needed to ensure that the
"devm subsystem might end up releasing things before freeing the irq,
thus allowing an interrupt to sneak in while the device is being
removed." disable_irq is enough for this purpose and there is no need to
manually free the reference to the clock.
Cc: Robert Tivy <rtivy@ti.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
[moved the Cc line into the commit message]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Currently a host kick error is silently ignored and not reflected in
the virtqueue of a particular virtio device.
Changing the notify API for guest->host notification seems to be one
prerequisite in order to be able to handle such errors in the context
where the kick is triggered.
This patch changes the notify API. The notify function must return a
bool return value. It returns false if the host notification failed.
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Pull remoteproc fixes from Ohad Ben-Cohen:
"Trivial remoteproc fixes by Suman Anna, Wei Yongjun and Thomas Meyer"
* tag 'remoteproc-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
remoteproc: Cocci spatch "memdup.spatch"
remoteproc: free carveout memories only after unmapping them
remoteproc/omap: fix a sparse warning
remoteproc: fix checkpatch errors in remoteproc code
remoteproc: fix error return code in rproc_fw_boot()
It is not preferable to have the allocated pages for carveout
memories freed before they are unmapped. The code that deals
with the cleanup of carveout memories is therefore moved after
the corresponding mapping entries were cleaned up.
This is mostly a no-op since the remote processors are already
stopped when the cleanup function is called, but this will make
the cleanup code follow the exact reverse path of allocation.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
This patch fixes relevant checkpatch errors and warnings
in the remoteproc source files.
Signed-off-by: Suman Anna <s-anna@ti.com>
[drop 80-char-lines checkpatch fixes and update commit log accordingly]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Set 'ret' to -EINVAL when needed, so a sensible return value
is returned on errors.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
[fix additional instances of this bug as well, update commit log]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
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>
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()
Fix typo in printk and comments within various drivers.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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>
If rproc_alloc isn't given a firmware name, look for a default
one using the "rproc-%s-fw" template.
Signed-off-by: Robert Tivy <rtivy@ti.com>
[add commit log, document change, use snprintf, minor style change]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
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>
Set the vring addresses in the resource table so that
the remote device can read the actual addresses used.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Acked-by: Ido Yariv <ido@wizery.com>
[rebase]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Support virtio configuration space and device status. The virtio
device can now access the resource table in shared memory.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Acked-by: Ido Yariv <ido@wizery.com>
[rebase and style changes]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
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>
Arnd Bergmann
Jingoo Han
Julia Lawall
Uwe Kleine-König
Heinz Graalfs
Rusty Russell
Linus Torvalds
Thomas Meyer
Suman Anna
Wei Yongjun
Masanari Iida
Robert Tivy
Vincent Stehlé
Sjur Brændeland
Ohad Ben-Cohen