diff options
Diffstat (limited to 'arch/arm64/lib')
| -rw-r--r-- | arch/arm64/lib/gic.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/arm64/lib/gic.c b/arch/arm64/lib/gic.c index 11bb9cd..647e987 100644 --- a/arch/arm64/lib/gic.c +++ b/arch/arm64/lib/gic.c @@ -27,7 +27,6 @@ /* distributor registers, offsets from the GICD base */ #define GICD_CTLR 0x000 #define GICD_TYPER 0x004 -#define GICD_IGROUPR(n) (0x080 + (n) * 4) #define GICD_ISENABLER(n) (0x100 + (n) * 4) #define GICD_ICENABLER(n) (0x180 + (n) * 4) #define GICD_ICPENDR(n) (0x280 + (n) * 4) @@ -79,13 +78,14 @@ int tb_gic_init(uintptr_t gicd, uintptr_t gicc) lines = gicd_irq_lines(gicd); /* - * every interrupt in group 1, the non-secure group. the - * kernel does not see group 0 interrupts on non-secure - * hardware, and a bootloader that leaves any line in the - * secure group strands it. + * the group routing is deliberately untouched. the group + * registers are the secure world's, a non-secure loader's + * writes are dropped on hardware that implements the + * security extension, and on emulators that accept them + * the timer's per cpu interrupts stop reaching the + * kernel. group config belongs to the EL3 monitor, this + * loader runs without one. */ - for (n = 0; n < lines; n++) - writel(0xffffffff, REG32(gicd + GICD_IGROUPR(n))); /* no per interrupt enables, nothing pending */ for (n = 0; n < lines; n++) { |