mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
synced 2026-09-28 19:20:30 +00:00
No description
- C 96.9%
- Assembly 0.9%
- Rust 0.6%
- Shell 0.6%
- Python 0.5%
- Other 0.3%
39d439047f
Cross Layer DMA (CLDMA) Hardware interface (HIF) enables the control path of Host-Modem data transfers. CLDMA HIF layer provides a common interface to the Port Layer. CLDMA manages 8 independent RX/TX physical channels with data flow control in HW queues. CLDMA uses ring buffers of General Packet Descriptors (GPD) for TX/RX. GPDs can represent multiple or single data buffers (DB). CLDMA HIF initializes GPD rings, registers ISR handlers for CLDMA interrupts, and initializes CLDMA HW registers. CLDMA TX flow: 1. Port Layer write 2. Get DB address 3. Configure GPD 4. Triggering processing via HW register write CLDMA RX flow: 1. CLDMA HW sends a RX "done" to host 2. Driver starts thread to safely read GPD 3. DB is sent to Port layer 4. Create a new buffer for GPD ring Note: This patch does not enable compilation since it has dependencies such as t7xx_pcie_mac_clear_int()/t7xx_pcie_mac_set_int() and struct t7xx_pci_dev which are added by the core patch. Signed-off-by: Haijun Liu <haijun.liu@mediatek.com> Signed-off-by: Chandrashekar Devegowda <chandrashekar.devegowda@intel.com> Co-developed-by: Ricardo Martinez <ricardo.martinez@linux.intel.com> Signed-off-by: Ricardo Martinez <ricardo.martinez@linux.intel.com> Reviewed-by: Loic Poulain <loic.poulain@linaro.org> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Reviewed-by: Sergey Ryazanov <ryazanov.s.a@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
History
|
|
|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.