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The last thing that stops the debugfs part of the eDMA driver from supporting multi-eDMA platforms is keeping the eDMA private data pointer in the static area of the debugfs module. Since the debugfs node descriptors are now heap-allocated, we can freely move that pointer to being preserved in the descriptors. After the debugfs initialization procedure, that pointer will be used in the debugfs files getter to access the common CSRs space and the context CSRs spinlock. So the main part of this change is connected with the debugfs nodes descriptors initialization macros, which aside with already defined prototypes now require to have the DW eDMA private data pointer passed. [bhelgaas: squash in https://lore.kernel.org/r/20230130185101.2883245-1-arnd@kernel.org] Link: https://lore.kernel.org/r/20230113171409.30470-17-Sergey.Semin@baikalelectronics.ru Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Acked-by: Vinod Koul <vkoul@kernel.org> |
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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.