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 [v12]: https://lore.kernel.org/all/20260521054539.128651-1-ekansh.gupta@oss.qualcomm.com/

Changes in v13:
  - Fixed race between recycled ctxid and late glink response.

Changes in v12:
  - Fixed poll_mode_supported check.

Changes in v11:
  - Moved back to read_poll*.
  - Improved error handling.

Changes in v10:
  - Add milos and sar2130p to fastrpc_poll_supported_machines. 
  - Updated comment for supported platform list.

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      | 214 ++++++++++++++++++++++++++++++++----
 include/uapi/misc/fastrpc.h |  29 +++++
 2 files changed, 223 insertions(+), 20 deletions(-)

-- 
2.34.1

On Mon, 13 Jul 2026 10:52:32 +0530, Ekansh Gupta wrote:
> 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.
> 
> [...]

Applied, thanks!

[1/4] misc: fastrpc: Move fdlist to invoke context structure
      commit: a73359512125b686b010c25530f8768cb0fd4632
[2/4] misc: fastrpc: Replace hardcoded ctxid mask with GENMASK
      commit: 10555ba6126ede14a98af991c6613151a2cafa5a
[3/4] misc: fastrpc: Expand context ID mask for DSP polling mode support
      commit: c49f7643576630fb602adf927eb17399b19da6b0
[4/4] misc: fastrpc: Add polling mode support for fastRPC driver
      commit: fefb8b2aa4cc5273e7564903941ae49540e0dfc5

Best regards,
-- 
Srinivas Kandagatla <srini@kernel.org>