The `config` and `api` members of `struct device` are expected
to be `const`. This also improves reliability, as `config`
and `api` are stored in rom rather than ram, which has the
potential to be corrupted at runtime in the absense of an MMU.
Signed-off-by: Chris Friedt <cfriedt@meta.com>
There are use cases for the pcie_ep driver where we don't
necessarily need the dma functionality. Added ifdef's around
the dma functionality so that it's only available if we
specify the dma engines in the device tree similar to
```
dmas = <&pl330 0>, <&pl330 1>;
dma-names = "txdma", "rxdma";
```
Signed-off-by: Tarun Karuturi <tkaruturi@meta.com>
Signed-off-by: Chris Friedt <cfriedt@meta.com>
Change automated searching for files using "IRQ_CONNECT()" API not
including <zephyr/irq.h>.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Following zephyr's style guideline, all if statements, including single
line statements shall have braces.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
In order to bring consistency in-tree, migrate all drivers to the new
prefix <zephyr/...>. Note that the conversion has been scripted, refer
to #45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
According to Kconfig guidelines, boolean prompts must not start with
"Enable...". The following command has been used to automate the changes
in this patch:
sed -i "s/bool \"[Ee]nables\? \(\w\)/bool \"\U\1/g" **/Kconfig*
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Instead of putting the object files inside libzephyr.a,
simply build a separate static library as most other
driver types are doing this already.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Now that we generate a header that extern's all possible devicetree
based device struct we can remove DEVICE_DT_DECLARE and
DEVICE_DT_INST_DECLARE as they aren't needed anymore.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Originally, sys_read8 to the mapped address was added part of
the unmap API to protect OMAP mapping, i.e. in case of PCIe writes,
OMAP should not be overwritten before writes are completed.
Now that we have added dummy PCIe read in the common APIs, namely
pcie_ep_xfer_data_memcpy and pcie_ep_xfer_data_dma, for the purpose
of flushing PCIe writes; the purpose of protecting OMAP *also*
gets satisfied, randering PCIe read in the unmap useless,
so remove the same.
Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
Introduce common API to achieve data transfer using system DMA.
"System DMA" uses the outbound memory mapped Host address,
it cannot understand Host/PCIe address.
This API will take of mapping the Host address, completing
the data transfer to/from Host memory and unmapping the window;
thus providing abstraction to the user.
Since v1:
- refactored code for the cases where we have valid mapped_addr
to improve error management logic
Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
Once host memory is mapped to outbound memory, PL330 can be used to
transfer data between outbound memory and local memory.
Add API for the same, we get pl330 device as well as channels to be
used for tx/rx from DT and use DMA public APIs for data transfer.
Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
We should clear the pvm interrupts (snoop and pcie pmon lite interrupt)
at source before handling them.
This will make sure that we do not lose any interrupts that may have
been asserted to interrupt controller during the handling routine.
Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
Add support for interrupt driven MSI-X PVM feature for Viper.
Function mask bit update is tracked with snoop interrupt
and vector mask bit update is tracked with pcie pmon lite
address range access detection interrupt.
Both the interrupts are required to enable this feature.
Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
drivers: pcie_ep: iproc: move msi/msix functions to a separate
file. This increases readability and modularity.
Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
File names such as pcie_ep_bcm_iproc.c / pcie_ep_bcm_iproc_regs.h
seem unnecessarily long, same with CONFIG symbols' names.
Let's shorten them by replacing 'bcm_iproc' with simply 'iproc'.
Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.
A coccinelle rule is used for this:
@r_const_dev_1
disable optional_qualifier
@
@@
-struct device *
+const struct device *
@r_const_dev_2
disable optional_qualifier
@
@@
-struct device * const
+const struct device *
Fixes#27399
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Add support to register callback function for each PCIe reset.
These callback functions are executed from corresponding
PCIe reset interrupt handler if registered.
Signed-off-by: Shivaraj Shetty <shivaraj.shetty@broadcom.com>
Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
Add reset interrupt handlers for all three types of reset
interrupts that iProc PCIe EP can receive - namely PERST,
INB PERST and FLR.
Signed-off-by: Shivaraj Shetty <shivaraj.shetty@broadcom.com>
Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
iProc PCIe EP IP is present in Broadcom PCIe offload chips.
Add iProc PCIe EP driver to provide basic PCIe EP functionality.
Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
Signed-off-by: Shivaraj Shetty <shivaraj.shetty@broadcom.com>
Introduce common API to achieve data transfer using memcpy
to/from outbound region of PCIe EP.
Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
Add public APIs for PCIe endpoint driver:
- EP configuration space read/write
- Mapping/Unmapping of Host buffer and PCIe outbound region
- Raise interrupt to Host
These are minimal base APIs to make PCIe EP functional.
Also, add a Kconfig and an empty CMakeLists.txt for drivers to extend.
Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
