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| author |   Roy Pledge <roy.pledge@nxp.com> | 2018-09-28 11:43:20 +0300 |
|---|---|---|
| committer |   Li Yang <leoyang.li@nxp.com> | 2018-10-05 14:01:46 -0500 |
| commit | 9beaf661d6a72b7c05efb4b33d228032c7152f34 (patch) | |
| tree | 1b70ad14038759d6e9e833616fa4ec55fb9e0894 /drivers/soc/fsl/qbman/dpaa_sys.h | |
| parent | Merge tag 'soc-fsl-fix-v4.19-2' into HEAD (diff) | |
| download | linux-dev-9beaf661d6a72b7c05efb4b33d228032c7152f34.tar.xz linux-dev-9beaf661d6a72b7c05efb4b33d228032c7152f34.zip | |
soc: fsl: qbman: Check if CPU is offline when initializing portals
If the CPU to affine the portal interrupt is offline at boot time
affine the portal interrupt to another online CPU. If the CPU is later
brought online the hotplug handler will correctly adjust the affinity.
Moved common code in a function.
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Diffstat (limited to 'drivers/soc/fsl/qbman/dpaa_sys.h')
| -rw-r--r-- | drivers/soc/fsl/qbman/dpaa_sys.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/soc/fsl/qbman/dpaa_sys.h b/drivers/soc/fsl/qbman/dpaa_sys.h index 9f379000da85..ae8afa552b1e 100644 --- a/drivers/soc/fsl/qbman/dpaa_sys.h +++ b/drivers/soc/fsl/qbman/dpaa_sys.h @@ -111,4 +111,24 @@ int qbman_init_private_mem(struct device *dev, int idx, dma_addr_t *addr, #define QBMAN_MEMREMAP_ATTR MEMREMAP_WC #endif +static inline int dpaa_set_portal_irq_affinity(struct device *dev, + int irq, int cpu) +{ + int ret = 0; + + if (!irq_can_set_affinity(irq)) { + dev_err(dev, "unable to set IRQ affinity\n"); + return -EINVAL; + } + + if (cpu == -1 || !cpu_online(cpu)) + cpu = cpumask_any(cpu_online_mask); + + ret = irq_set_affinity(irq, cpumask_of(cpu)); + if (ret) + dev_err(dev, "irq_set_affinity() on CPU %d failed\n", cpu); + + return ret; +} + #endif /* __DPAA_SYS_H */ |