opensbi.git/lib/utils/irqchip, branch v1.3

lib: utils/irqchip: Use scratch space to save per-HART IMSIC pointer

2023-06-06T10:31:14Z

Instead of using a global array indexed by hartid, we should use scratch space to save per-HART IMSIC pointer and IMSIC file number. Signed-off-by: Anup Patel Reviewed-by: Andrew Jones

lib: utils/irqchip: Don't check hartid in imsic_update_hartid_table()

2023-06-05T11:21:07Z

The imsic_map_hartid_to_data() already checks hartid before using so we don't need to check in imsic_update_hartid_table(). Signed-off-by: Anup Patel Reviewed-by: Andrew Jones

lib: utils/irqchip: Use scratch space to save per-HART PLIC pointer

2023-06-05T11:20:56Z

Instead of using a global array indexed by hartid, we should use scratch space to save per-HART PLIC pointer and PLIC context numbers. Signed-off-by: Anup Patel Reviewed-by: Andrew Jones

lib: utils/irqchip: Use heap in PLIC, APLIC and IMSIC drivers

2023-06-05T10:27:58Z

Let's use heap allocation in PLIC, APLIC, and IMSIC irqchip drivers instead of using a fixed size global array. Signed-off-by: Anup Patel Reviewed-by: Andrew Jones

lib: utils: Add M-mode {R/W} flags to the MMIO regions

2023-01-09T12:34:28Z

Add the M-mode readable/writable flags to mmio regions of various drivers. Signed-off-by: Himanshu Chauhan Reviewed-by: Anup Patel Tested-by: Anup Patel

lib: utils/irqchip: plic: Ensure no out-of-bound access in context save/restore helpers

2022-12-17T03:33:30Z

Currently the context save/restore helpers writes/reads the provided array using an index whose maximum value is determined by PLIC, which potentially may disagree with the caller to these helpers. Add a parameter to ask the caller to provide the size limit of the array to ensure no out-of-bound access happens. Signed-off-by: Bin Meng Reviewed-by: Anup Patel

lib: utils/irqchip: plic: Fix the off-by-one error in context save/restore helpers

2022-12-17T03:32:40Z

plic->num_src holds the number of interrupt sources without interrupt source 0 but the interrupt enable register includes a bit for the interrupt source 0 in the first word. Fixes: 415ecf28f7ad ("lib: irqchip/plic: Add context save/restore helpers") Signed-off-by: Bin Meng Reviewed-by: Anup Patel Reviewed-by: Samuel Holland

lib: utils/irqchip: plic: Fix the off-by-one error in plic_context_init()

2022-12-17T03:30:35Z

The number of interrupt enable register in words was once correct, but was wrongly changed to have an off-by-one error since commit 8c362e7d065e ("lib: irqchip/plic: Factor out a context init function"). Fixes: 8c362e7d065e ("lib: irqchip/plic: Factor out a context init function") Signed-off-by: Bin Meng Reviewed-by: Anup Patel Reviewed-by: Samuel Holland

lib: utils/irqchip: plic: Ensure no out-of-bound access in priority save/restore helpers

2022-12-17T03:30:29Z

Currently the priority save/restore helpers writes/reads the provided array using an index whose maximum value is determined by PLIC, which potentially may disagree with the caller to these helpers. Add a parameter to ask the caller to provide the size limit of the array to ensure no out-of-bound access happens. Signed-off-by: Bin Meng Reviewed-by: Anup Patel

lib: utils/irqchip: plic: Fix the off-by-one error in priority save/restore helpers

2022-12-17T03:12:21Z

Interrupt source 0 is reserved. Hence the irq should start from 1. Fixes: 2b79b694a805 ("lib: irqchip/plic: Add priority save/restore helpers") Signed-off-by: Bin Meng Reviewed-by: Anup Patel