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| author | Alistair Francis <Alistair.Francis@wdc.com> | 2019-04-04 18:15:23 +0000 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@sifive.com> | 2019-04-04 16:36:19 -0700 |
| commit | 0feb4a7129eb4f120c75849ddc9e50495c50cb63 (patch) | |
| tree | 47228ddc89549d44f57dba7a5b0ce93455246ff9 /include/hw | |
| parent | 061b51e9195670e9d190cdec46fabcb3c77763fb (diff) | |
| download | qemu-0feb4a7129eb4f120c75849ddc9e50495c50cb63.zip qemu-0feb4a7129eb4f120c75849ddc9e50495c50cb63.tar.gz qemu-0feb4a7129eb4f120c75849ddc9e50495c50cb63.tar.bz2 | |
riscv: plic: Fix incorrect irq calculation
This patch fixes four different things, to maintain bisectability they
have been merged into a single patch. The following fixes are below:
sifive_plic: Fix incorrect irq calculation
The irq is incorrectly calculated to be off by one. It has worked in the
past as the priority_base offset has also been set incorrectly. We are
about to fix the priority_base offset so first first the irq
calculation.
sifive_u: Fix PLIC priority base offset and numbering
According to the FU540 manual the PLIC source priority address starts at
an offset of 0x04 and not 0x00. The same manual also specifies that the
PLIC only has 53 source priorities. Fix these two incorrect header
files.
We also need to over extend the plic_gpios[] array as the PLIC sources
count from 1 and not 0.
riscv: sifive_e: Fix PLIC priority base offset
According to the FE31 manual the PLIC source priority address starts at
an offset of 0x04 and not 0x00.
riscv: virt: Fix PLIC priority base offset
Update the virt offsets based on the newly updated SiFive U and SiFive E
offsets.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/riscv/sifive_e.h | 2 | ||||
| -rw-r--r-- | include/hw/riscv/sifive_u.h | 4 | ||||
| -rw-r--r-- | include/hw/riscv/virt.h | 2 |
3 files changed, 4 insertions, 4 deletions
diff --git a/include/hw/riscv/sifive_e.h b/include/hw/riscv/sifive_e.h index 7b6d8ae..f715f86 100644 --- a/include/hw/riscv/sifive_e.h +++ b/include/hw/riscv/sifive_e.h @@ -70,7 +70,7 @@ enum { #define SIFIVE_E_PLIC_HART_CONFIG "M" #define SIFIVE_E_PLIC_NUM_SOURCES 127 #define SIFIVE_E_PLIC_NUM_PRIORITIES 7 -#define SIFIVE_E_PLIC_PRIORITY_BASE 0x0 +#define SIFIVE_E_PLIC_PRIORITY_BASE 0x04 #define SIFIVE_E_PLIC_PENDING_BASE 0x1000 #define SIFIVE_E_PLIC_ENABLE_BASE 0x2000 #define SIFIVE_E_PLIC_ENABLE_STRIDE 0x80 diff --git a/include/hw/riscv/sifive_u.h b/include/hw/riscv/sifive_u.h index be13cc1..892f0ee 100644 --- a/include/hw/riscv/sifive_u.h +++ b/include/hw/riscv/sifive_u.h @@ -68,9 +68,9 @@ enum { }; #define SIFIVE_U_PLIC_HART_CONFIG "MS" -#define SIFIVE_U_PLIC_NUM_SOURCES 127 +#define SIFIVE_U_PLIC_NUM_SOURCES 54 #define SIFIVE_U_PLIC_NUM_PRIORITIES 7 -#define SIFIVE_U_PLIC_PRIORITY_BASE 0x0 +#define SIFIVE_U_PLIC_PRIORITY_BASE 0x04 #define SIFIVE_U_PLIC_PENDING_BASE 0x1000 #define SIFIVE_U_PLIC_ENABLE_BASE 0x2000 #define SIFIVE_U_PLIC_ENABLE_STRIDE 0x80 diff --git a/include/hw/riscv/virt.h b/include/hw/riscv/virt.h index f12deae..568764b 100644 --- a/include/hw/riscv/virt.h +++ b/include/hw/riscv/virt.h @@ -59,7 +59,7 @@ enum { #define VIRT_PLIC_HART_CONFIG "MS" #define VIRT_PLIC_NUM_SOURCES 127 #define VIRT_PLIC_NUM_PRIORITIES 7 -#define VIRT_PLIC_PRIORITY_BASE 0x0 +#define VIRT_PLIC_PRIORITY_BASE 0x04 #define VIRT_PLIC_PENDING_BASE 0x1000 #define VIRT_PLIC_ENABLE_BASE 0x2000 #define VIRT_PLIC_ENABLE_STRIDE 0x80 |