diff options
| author | Haren Myneni <haren@linux.ibm.com> | 2020-04-15 22:58:40 -0700 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-04-20 16:52:59 +1000 |
| commit | 8d0ea29db5aefd0d94fa4b6ca6124c68998f3c6a (patch) | |
| tree | 69c576752ffeebc4dccfc1e6f2c75c56acef8295 | |
| parent | ae83d0b416db002fe95601e7f97f64b59514d936 (diff) | |
powerpc/xive: Define xive_native_alloc_irq_on_chip()
This function allocates IRQ on a specific chip. VAS needs per chip
IRQ allocation and will have IRQ handler per VAS instance.
Signed-off-by: Haren Myneni <haren@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1587016720.2275.1047.camel@hbabu-laptop
| -rw-r--r-- | arch/powerpc/include/asm/xive.h | 9 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/xive/native.c | 6 |
2 files changed, 11 insertions, 4 deletions
diff --git a/arch/powerpc/include/asm/xive.h b/arch/powerpc/include/asm/xive.h index 93f982dbb3d4..d08ea11b271c 100644 --- a/arch/powerpc/include/asm/xive.h +++ b/arch/powerpc/include/asm/xive.h @@ -5,6 +5,8 @@ #ifndef _ASM_POWERPC_XIVE_H #define _ASM_POWERPC_XIVE_H +#include <asm/opal-api.h> + #define XIVE_INVALID_VP 0xffffffff #ifdef CONFIG_PPC_XIVE @@ -108,7 +110,6 @@ void xive_native_free_vp_block(u32 vp_base); int xive_native_populate_irq_data(u32 hw_irq, struct xive_irq_data *data); void xive_cleanup_irq_data(struct xive_irq_data *xd); -u32 xive_native_alloc_irq(void); void xive_native_free_irq(u32 irq); int xive_native_configure_irq(u32 hw_irq, u32 target, u8 prio, u32 sw_irq); @@ -137,6 +138,12 @@ int xive_native_set_queue_state(u32 vp_id, uint32_t prio, u32 qtoggle, u32 qindex); int xive_native_get_vp_state(u32 vp_id, u64 *out_state); bool xive_native_has_queue_state_support(void); +extern u32 xive_native_alloc_irq_on_chip(u32 chip_id); + +static inline u32 xive_native_alloc_irq(void) +{ + return xive_native_alloc_irq_on_chip(OPAL_XIVE_ANY_CHIP); +} #else diff --git a/arch/powerpc/sysdev/xive/native.c b/arch/powerpc/sysdev/xive/native.c index 5218fdc4b29a..71b881e554fc 100644 --- a/arch/powerpc/sysdev/xive/native.c +++ b/arch/powerpc/sysdev/xive/native.c @@ -280,12 +280,12 @@ static int xive_native_get_ipi(unsigned int cpu, struct xive_cpu *xc) } #endif /* CONFIG_SMP */ -u32 xive_native_alloc_irq(void) +u32 xive_native_alloc_irq_on_chip(u32 chip_id) { s64 rc; for (;;) { - rc = opal_xive_allocate_irq(OPAL_XIVE_ANY_CHIP); + rc = opal_xive_allocate_irq(chip_id); if (rc != OPAL_BUSY) break; msleep(OPAL_BUSY_DELAY_MS); @@ -294,7 +294,7 @@ u32 xive_native_alloc_irq(void) return 0; return rc; } -EXPORT_SYMBOL_GPL(xive_native_alloc_irq); +EXPORT_SYMBOL_GPL(xive_native_alloc_irq_on_chip); void xive_native_free_irq(u32 irq) { |