| From: |
| Ekansh Gupta <ekansh.gupta-AT-oss.qualcomm.com> |
| To: |
| srini-AT-kernel.org, linux-arm-msm-AT-vger.kernel.org |
| Subject: |
| [PATCH v9 0/4] misc: fastrpc: Add polling mode support |
| Date: |
| Wed, 22 Apr 2026 14:54:05 +0530 |
| Message-ID: |
| <20260422092409.4107093-1-ekansh.gupta@oss.qualcomm.com> |
| Cc: |
| gregkh-AT-linuxfoundation.org, quic_bkumar-AT-quicinc.com, linux-kernel-AT-vger.kernel.org, quic_chennak-AT-quicinc.com, dri-devel-AT-lists.freedesktop.org, arnd-AT-arndb.de, dmitry.baryshkov-AT-oss.qualcomm.com, ltuikov89-AT-gmail.com, konrad.dybcio-AT-oss.qualcomm.com, andersson-AT-kernel.org |
| Archive-link: |
| Article |
This patch series adds polling mode feature that have been missing in
upstream FastRPC driver.
- Add changes to move fdlist to ctx structure to avoid code duplicacy.
- Update context mask to support polling mode.
- Add changes to support polling feature.
Userspace change: https://github.com/qualcomm/fastrpc/pull/258
Patch [v8]: https://lore.kernel.org/all/20260415112530.4083240-1-ekan...
Changes in v9:
- Added platform support check.
- Moved to readl as per Luben's suggestion.
- Cleaned up fastrpc_wait_for_completion().
Changes in v8:
- Added more comments.
Changes in v7:
- Fixed warnings.
- Fixed commit text.
- Addressed clean-up comments.
Changes in v6:
- Fixed poll memory calculation.
- Added few formatting changes.
Changes in v5:
- Add more details in commit text.
Changes in v4:
- Replace hardcoded ctxid mask with GENMASK.
- Fixed commit text.
Changes in v3:
- Resolve compilation warning.
Changes in v2:
- Added comments and fixed commit text.
- Defined context id position as a macro.
- Added new IOCTL to control polling mode as always enabling
it might cause excess power consumption.
- Cleaned up polling mode implementation.
Ekansh Gupta (4):
misc: fastrpc: Move fdlist to invoke context structure
misc: fastrpc: Replace hardcoded ctxid mask with GENMASK
misc: fastrpc: Expand context ID mask for DSP polling mode support
misc: fastrpc: Add polling mode support for fastRPC driver
drivers/misc/fastrpc.c | 170 +++++++++++++++++++++++++++++++-----
include/uapi/misc/fastrpc.h | 25 ++++++
2 files changed, 175 insertions(+), 20 deletions(-)
--
2.34.1
