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https://github.com/zephyrproject-rtos/zephyr
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9e4dfd8f4e
There are x86 platforms where the IRQ configuration register for PCIe is not pre-populated and the OS needs to assign a number dynamically by writing to the register. In order to allocate interrupts we have to know which ones have been hard-coded in device tree. We accomplish this by collecting these values through the IRQ_CONNECT() macro and placing them in a dedicated linker section (in ROM). The full set of allocated interrupts are managed through a bitmap, and the pre-allocated values (from the linker section) are inserted into this upon initial runtime access. This patch introduces a new pcie_alloc_irq() API that drivers can use to allocate interrupt line numbers. The two in-tree drivers that were using this API (I2C and UART) are converted to use the new API. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> |
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| .. | ||
| app_smem_aligned.ld | ||
| app_smem_unaligned.ld | ||
| app_smem.ld | ||
| common-noinit.ld | ||
| common-ram.ld | ||
| common-rom.ld | ||
| cplusplus-ram.ld | ||
| cplusplus-rom.ld | ||
| debug-sections.ld | ||
| intlist.ld | ||
| kobject-rom.ld | ||
| kobject-text.ld | ||
| kobject.ld | ||
| linker-defs.h | ||
| linker-tool-gcc.h | ||
| linker-tool-mwdt.h | ||
| linker-tool.h | ||
| rel-sections.ld | ||
| section_tags.h | ||
| sections.h | ||
| thread-local-storage.ld | ||