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* soc: fsl: dpio: configure cache stashing destinationIoana Ciornei2019-02-264-0/+78
| | | | | | | | Depending on the SoC version and the CPU id, configure the cache stashing destination for a specific dpio. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
* soc: fsl: dpio: enable frame data cache stashing per software portalIoana Ciornei2019-02-261-2/+2
| | | | | | | | | Enable cache stashing on the frame data dequeued using this software portal. Also, enable dropping a stash request transaction when the target request queue is almost full. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
* soc: fsl: dpio: fix memory leak of a struct qbman on error exit pathColin Ian King2019-02-191-0/+1
| | | | | | | | | Currently the error check for a null reg leaks a struct qbman that was allocated earlier. Fix this by kfree'ing p on the error exit path. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
* soc: fsl: dpio: Use after free in dpaa2_dpio_remove()Dan Carpenter2019-02-041-1/+1
| | | | | | | | | The dpaa2_io_down(priv->io) call frees "priv->io" so I've shifted the code around a little bit to avoid the use after free. Fixes: 991e873223e9 ("soc: fsl: dpio: use a cpumask to identify which cpus are unused") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
* soc: fsl: dpio: Change bpid type to u16Ioana Ciocoi Radulescu2019-01-111-2/+2
| | | | | | | | | In all QBMan registers, the buffer pool id field is two bytes long. The low level qbman APIs reflect this, but the high level DPIO ones use u32. Modify them in order to avoid implicit downcasts. Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
* soc: fsl: dpio: Add prefetch instructionIoana Ciocoi Radulescu2019-01-111-0/+1
| | | | | | | | | | | | In dpaa2_io_store_next(), if the current dequeue entry is not the last, prefetch the next one as most likely it will be requested shortly by the consumer driver. This brings a ~3% improvement for dpaa2 ethernet driver IP forwarding with small size frames. Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
* soc: fsl: dpio: add a device_link at dpaa2_io_service_registerIoana Ciornei2019-01-111-2/+14
| | | | | | | | | | | | | | | | | | | Automatically add a device link between the actual device requesting the dpaa2_io_service_register and the underlying dpaa2_io used. This link will ensure that when a DPIO device, which is indirectly used by other devices, is unbound any consumer devices will be also unbound from their drivers. For example, any DPNI, bound to the dpaa2-eth driver, which is using DPIO devices will be unbound before its supplier device. Also, add a new parameter to the dpaa2_io_service_[de]register functions to specify the requesting device (ie the consumer). Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Reviewed-by: Horia Geanta <horia.geanta@nxp.com> Reviewed-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
* soc: fsl: dpio: store a backpointer to the device backing the dpaa2_ioIoana Ciornei2019-01-112-2/+7
| | | | | | | | Add a new field in the dpaa2_io structure to hold a backpointer to the actual DPIO device. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
* soc: fsl: dpio: keep a per dpio device MC portalIoana Ciornei2019-01-111-8/+1
| | | | | | | | | | | | | | | | At the moment, the dpio-driver allocates an MC portal at probe time and frees it right after usage. The same thing happens on the remove path. This behavior could lead to scenarios where an MC portal is available for use at probing but not longer free on the remove path which could lead to unproper unbind of resources. Change the driver's behavior in such a way that an MC portal is allocated at probe and kept until the DPIO device is removed. This will ensure that at any time after a DPIO device was successfully probed, all its dependencies will be met. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
* soc: fsl: dpio: perform DPIO Reset on ProbeRoy Pledge2019-01-114-0/+35
| | | | | | | | Invoke a DPIO reset command when a DPIO device is probed. This will ensure the QBMan portal is in the state the driver expects. Signed-off-by: Roy Pledge <roy.pledge@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
* soc: fsl: dpio: use a cpumask to identify which cpus are unusedIoana Ciornei2019-01-082-9/+29
| | | | | | | | | | | | | | | | | | | | | The current implementation of the dpio driver uses a static next_cpu variable to keep track of the index of the next cpu available. This approach does not handle well unbinding and binding dpio devices in a random order. For example, unbinding a dpio and then binding it again with the driver, will generate the below error: $ echo dpio.5 > /sys/bus/fsl-mc/drivers/fsl_mc_dpio/unbind $ echo dpio.5 > /sys/bus/fsl-mc/drivers/fsl_mc_dpio/bind [ 103.946380] fsl_mc_dpio dpio.5: probe failed. Number of DPIOs exceeds NR_CPUS. [ 103.955157] fsl_mc_dpio dpio.5: fsl_mc_driver_probe failed: -34 -bash: echo: write error: No such device Fix this error by keeping a global cpumask of unused cpus that will be updated at every dpaa2_dpio_[probe,remove]. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
* soc: fsl: dpio: cleanup the cpu array on dpaa2_io_downIoana Ciornei2019-01-081-0/+5
| | | | | | | | The dpio_by_cpu array should not contain a reference to a freed dpaa2_io object. This patch adds the necessary cleanup in dpaa2_io_down. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
* soc: fsl: dpio: Add BP and FQ query APIsRoy Pledge2018-12-193-0/+222
| | | | | | | | | | | Add FQ (Frame Queue) and BP (Buffer Pool) query APIs that users of QBMan can invoke to see the status of the queues and pools that they are using. Signed-off-by: Roy Pledge <roy.pledge@nxp.com> Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'armsoc-drivers' of ↵Linus Torvalds2018-10-291-3/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "The most noteworthy SoC driver changes this time include: - The TEE subsystem gains an in-kernel interface to access the TEE from device drivers. - The reset controller subsystem gains a driver for the Qualcomm Snapdragon 845 Power Domain Controller. - The Xilinx Zynq platform now has a firmware interface for its platform management unit. This contains a firmware "ioctl" interface that was a little controversial at first, but the version we merged solved that by not exposing arbitrary firmware calls to user space. - The Amlogic Meson platform gains a "canvas" driver that is used for video processing and shared between different high-level drivers. The rest is more of the usual, mostly related to SoC specific power management support and core drivers in drivers/soc: - Several Renesas SoCs (RZ/G1N, RZ/G2M, R-Car V3M, RZ/A2M) gain new features related to power and reset control. - The Mediatek mt8183 and mt6765 SoC platforms gain support for their respective power management chips. - A new driver for NXP i.MX8, which need a firmware interface for power management. - The SCPI firmware interface now contains support estimating power usage of performance states - The NVIDIA Tegra "pmc" driver gains a few new features, in particular a pinctrl interface for configuring the pads. - Lots of small changes for Qualcomm, in particular the "smem" device driver. - Some cleanups for the TI OMAP series related to their sysc controller. Additional cleanups and bugfixes in SoC specific drivers include the Meson, Keystone, NXP, AT91, Sunxi, Actions, and Tegra platforms" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (129 commits) firmware: tegra: bpmp: Implement suspend/resume support drivers: clk: Add ZynqMP clock driver dt-bindings: clock: Add bindings for ZynqMP clock driver firmware: xilinx: Add zynqmp IOCTL API for device control Documentation: xilinx: Add documentation for eemi APIs MAINTAINERS: imx: include drivers/firmware/imx path firmware: imx: add misc svc support firmware: imx: add SCU firmware driver support reset: Fix potential use-after-free in __of_reset_control_get() dt-bindings: arm: fsl: add scu binding doc soc: fsl: qbman: add interrupt coalesce changing APIs soc: fsl: bman_portals: defer probe after bman's probe soc: fsl: qbman: Use last response to determine valid bit soc: fsl: qbman: Add 64 bit DMA addressing requirement to QBMan soc: fsl: qbman: replace CPU 0 with any online CPU in hotplug handlers soc: fsl: qbman: Check if CPU is offline when initializing portals reset: qcom: PDC Global (Power Domain Controller) reset controller dt-bindings: reset: Add PDC Global binding for SDM845 SoCs reset: Grammar s/more then once/more than once/ bus: ti-sysc: Just use SET_NOIRQ_SYSTEM_SLEEP_PM_OPS ...
| * soc: fsl: dpio: remove redundant pointer 'priv'Colin Ian King2018-08-301-3/+0
| | | | | | | | | | | | | | | | | | | | | | Pointer 'priv' is being assigned but is never used hence it is redundant and can be removed. Cleans up clang warning: variable 'priv' set but not used [-Wunused-but-set-variable] Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
* | soc: fsl: dpio: add back some frame queue functionsHoria Geantă2018-09-211-0/+58
|/ | | | | | | | | | This commit adds back functions removed in commit a211c8170b3c ("staging: fsl-mc/dpio: remove couple of unused functions") since dpseci object will make use of them. Acked-by: Li Yang <leoyang.li@nxp.com> Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* soc: fsl: dpio: Convert DPIO documentation to .rstRoy Pledge2018-07-241-135/+0
| | | | | | | | | | Convert the Datapath I/O documentation to .rst format and move to the Documation/networking/dpaa2 directory Signed-off-by: Roy Pledge <roy.pledge@nxp.com> Reviewed-by: Horia Geantă <horia.geanta@nxp.com> Reviewed-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
* staging: fsl-mc: Move DPIO from staging to drivers/soc/fslRoy Pledge2018-07-249-0/+2748
Move the NXP DPIO (Datapath I/O Driver) out of the drivers/staging directory and into the drivers/soc/fsl directory. The DPIO driver enables access to Queue and Buffer Manager (QBMAN) hardware on NXP DPAA2 devices. This is a prerequisite to moving the DPAA2 Ethernet driver out of staging. Signed-off-by: Roy Pledge <roy.pledge@nxp.com> Reviewed-by: Horia Geantă <horia.geanta@nxp.com> Reviewed-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
generated by cgit v1.2.3 (git 2.46.0) at 2025-04-24 01:13:02 +0000