mirror of
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_memory | ||
| arch | ||
| audio | ||
| bluetooth | ||
| canbus | ||
| cmsis_rtos_v1 | ||
| cmsis_rtos_v2 | ||
| console | ||
| crypto | ||
| data | ||
| debug | ||
| devicetree | ||
| dfu | ||
| disk | ||
| display | ||
| drivers | ||
| dt-bindings | ||
| fs | ||
| linker | ||
| logging | ||
| lorawan | ||
| mgmt | ||
| net | ||
| posix | ||
| power | ||
| random | ||
| settings | ||
| shell | ||
| stats | ||
| storage | ||
| sys | ||
| timing | ||
| toolchain | ||
| tracing | ||
| usb | ||
| zephyr | ||
| cache.h | ||
| device.h | ||
| devicetree.h | ||
| ec_host_cmd.h | ||
| emul.h | ||
| exc_handle.h | ||
| fatal.h | ||
| generated_dts_board.h | ||
| init.h | ||
| irq_nextlevel.h | ||
| irq_offload.h | ||
| irq.h | ||
| kernel_includes.h | ||
| kernel_structs.h | ||
| kernel_version.h | ||
| kernel.h | ||
| mempool_heap.h | ||
| mempool_sys.h | ||
| ptp_clock.h | ||
| sched_priq.h | ||
| shared_irq.h | ||
| spinlock.h | ||
| sw_isr_table.h | ||
| sys_clock.h | ||
| syscall_handler.h | ||
| syscall.h | ||
| timeout_q.h | ||
| toolchain.h | ||
| wait_q.h | ||
| zephyr.h | ||