On 7/16/21 11:09 AM, Russ Weight wrote:
On 7/16/21 5:58 AM, Tom Rix wrote:
On 7/14/21 9:56 AM, Tom Rix wrote:
On 7/14/21 8:50 AM, Russ Weight wrote:
It seems like these patches are stalled on the compat_id question (in other emails). My
two-cents: I don't see an issue with having two versions of the register functions, and
I don't consider the issue important enough to force a move of the compat_id field. I
think the compat_id issue should be considered separately.
Are there any other concers for these patches?
I am fine with it other than the two register functions.
To compat_id or not and which order, I believe is Moritz's call.
I'm ok with doing compat_id later.
Russ,
Though it seems like this patchset has stalled. Either way it is stable enough to build on.
I am _really_ interested in the sec-mgr as it will make several cards usable.
Could you refresh it ?
Tom
Hi Tom,
I'll refresh the patch-set next week. There are several issues that Greg raised that won't
be fully addressed in the first refresh, but I can address the registration and the functions
and update dates in the documentation.
ok, thanks
Tom
- Russ
Tom
- Russ
On 7/8/21 5:42 PM, Russ Weight wrote:
The FPGA framework has a convention of using managed resource functions
to allow parent drivers to manage the data structures allocated by the
class drivers. They use an empty *_dev_release() function to satisfy the
class driver.
This is inconsistent with linux driver model.
These changes remove the managed resource functions and populate the class
dev_release callback functions. They also merge the create() and register()
functions into a single register() or register_full() function for each of
the fpga-mgr, fpga-region, and fpga-bridge class drivers.
The new *register_full() functions accept an info data structure to provide
flexibility in passing optional parameters. The *register() functions
support the legacy parameter list for users that don't require the use of
optional parameters.
For more context, refer to this email thread:
https://marc.info/?l=linux-fpga&m=162127412218557&w=2
I turned on the configs assocated with each of the modified files, but I
must have been missing some dependencies, because not all of them compiled.
I did a run-time test specifically with the dfl-fme infrastructure. This
would have exercised the region, bridge, and fpga-mgr frameworks.
Changelog v9 -> v10:
- Fixed commit messages to reference register_full() instead of
register_simple().
- Removed the fpga_bridge_register_full() function, because there is
not need for it yet. Updated the documentation and commit message
accordingly.
- Updated documentation to reference the fpga_manager_info and
fpga_region_info structures.
Changelog v8 -> v9:
- Cleaned up documentation for the FPGA Manager, Bridge, and Region
register functions
- Renamed fpga_*_register() to fpga_*_register_full()
- Renamed fpga_*_register_simple() to fpga_*_register()
- Renamed devm_fpga_mgr_register() to devm_fpga_mgr_register_full()
- Renamed devm_fpga_mgr_register_simple() to devm_fpga_mgr_register()
Changelog v7 -> v8:
- Added reviewed-by tags.
- Updated Documentation/driver-api/fpga/ files: fpga-mgr.rst,
fpga-bridge.rst, and fpga-region.rst.
Changelog v6 -> v7:
- Update the commit messages to describe the new parameters for the
*register() functions and to mention the *register_simple() functions.
- Fix function prototypes in header file to rename dev to parent.
- Make use of the PTR_ERR_OR_ZERO() macro when possible.
- Some cleanup of comments.
- Update function definitions/prototypes to apply const to the new info
parameter.
- Verify that info->br_ops is non-null in the fpga_bridge_register()
function.
- Verify a non-null info pointer in the fpga_region_register() function.
Changelog v5 -> v6:
- Moved FPGA manager/bridge/region optional parameters out of the ops
structure and back into the FPGA class driver structure.
- Changed fpga_*_register() function parameters to accept an info data
structure to provide flexibility in passing optional parameters.
- Added fpga_*_register_simple() functions to support current parameters
for users that don't require use of optional parameters.
Changelog v4 -> v5:
- Rebased on top of recently accepted patches.
- Removed compat_id from the fpga_mgr_register() parameter list
and added it to the fpga_manager_ops structure. This also required
dynamically allocating the dfl-fme-ops structure in order to add
the appropriate compat_id.
- Created the fpga_region_ops data structure which is optionally passed
to fpga_region_register(). compat_id, the get_bridges() pointer, and
the priv pointer are included in the fpga_region_ops structure.
Changelog v3 -> v4:
- Added the compat_id parameter to fpga_mgr_register() and
devm_fpga_mgr_register() to ensure that the compat_id is set before
the device_register() call.
- Added the compat_id parameter to fpga_region_register() to ensure
that the compat_id is set before the device_register() call.
- Modified the dfl_fpga_feature_devs_enumerate() function to restore
the fpga_region_register() call to the correct location.
Changelog v2 -> v3:
- Cleaned up comment headers for fpga_mgr_register(), fpga_bridge_register(),
and fpga_region_register().
- Fixed error return on ida_simple_get() failure for fpga_mgr_register(),
fpga_bridge_register(), and fpga_region_register().
- Fixed error return value for fpga_bridge_register(): ERR_PTR(ret) instead
of NULL.
Changelog v1 -> v2:
- Restored devm_fpga_mgr_register() functionality to the fpga-mgr
class driver, adapted for the combined create/register functionality.
- All previous callers of devm_fpga_mgr_register() will continue to call
devm_fpga_mgr_register().
- replaced unnecessary ternary operators in return statements with
standard if conditions.
Russ Weight (3):
fpga: mgr: Use standard dev_release for class driver
fpga: bridge: Use standard dev_release for class driver
fpga: region: Use standard dev_release for class driver
Documentation/driver-api/fpga/fpga-bridge.rst | 6 +-
Documentation/driver-api/fpga/fpga-mgr.rst | 38 +++-
Documentation/driver-api/fpga/fpga-region.rst | 12 +-
drivers/fpga/altera-cvp.c | 12 +-
drivers/fpga/altera-fpga2sdram.c | 12 +-
drivers/fpga/altera-freeze-bridge.c | 10 +-
drivers/fpga/altera-hps2fpga.c | 12 +-
drivers/fpga/altera-pr-ip-core.c | 7 +-
drivers/fpga/altera-ps-spi.c | 9 +-
drivers/fpga/dfl-fme-br.c | 10 +-
drivers/fpga/dfl-fme-mgr.c | 22 +-
drivers/fpga/dfl-fme-region.c | 17 +-
drivers/fpga/dfl.c | 12 +-
drivers/fpga/fpga-bridge.c | 122 +++-------
drivers/fpga/fpga-mgr.c | 215 ++++++++----------
drivers/fpga/fpga-region.c | 119 ++++------
drivers/fpga/ice40-spi.c | 9 +-
drivers/fpga/machxo2-spi.c | 9 +-
drivers/fpga/of-fpga-region.c | 10 +-
drivers/fpga/socfpga-a10.c | 16 +-
drivers/fpga/socfpga.c | 9 +-
drivers/fpga/stratix10-soc.c | 16 +-
drivers/fpga/ts73xx-fpga.c | 9 +-
drivers/fpga/xilinx-pr-decoupler.c | 17 +-
drivers/fpga/xilinx-spi.c | 11 +-
drivers/fpga/zynq-fpga.c | 16 +-
drivers/fpga/zynqmp-fpga.c | 9 +-
include/linux/fpga/fpga-bridge.h | 30 ++-
include/linux/fpga/fpga-mgr.h | 62 +++--
include/linux/fpga/fpga-region.h | 36 ++-
30 files changed, 383 insertions(+), 511 deletions(-)
