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cxl: Make IRQ release idempotent
Check if an IRQ is mapped before releasing it. This will simplify future EEH code by allowing unconditional unmapping of IRQs. Acked-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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@ -341,6 +341,9 @@ int cxl_register_psl_err_irq(struct cxl *adapter)
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void cxl_release_psl_err_irq(struct cxl *adapter)
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{
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if (adapter->err_virq != irq_find_mapping(NULL, adapter->err_hwirq))
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return;
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cxl_p1_write(adapter, CXL_PSL_ErrIVTE, 0x0000000000000000);
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cxl_unmap_irq(adapter->err_virq, adapter);
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cxl_release_one_irq(adapter, adapter->err_hwirq);
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@ -374,6 +377,9 @@ int cxl_register_serr_irq(struct cxl_afu *afu)
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void cxl_release_serr_irq(struct cxl_afu *afu)
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{
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if (afu->serr_virq != irq_find_mapping(NULL, afu->serr_hwirq))
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return;
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cxl_p1n_write(afu, CXL_PSL_SERR_An, 0x0000000000000000);
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cxl_unmap_irq(afu->serr_virq, afu);
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cxl_release_one_irq(afu->adapter, afu->serr_hwirq);
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@ -400,6 +406,9 @@ int cxl_register_psl_irq(struct cxl_afu *afu)
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void cxl_release_psl_irq(struct cxl_afu *afu)
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{
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if (afu->psl_virq != irq_find_mapping(NULL, afu->psl_hwirq))
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return;
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cxl_unmap_irq(afu->psl_virq, afu);
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cxl_release_one_irq(afu->adapter, afu->psl_hwirq);
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kfree(afu->psl_irq_name);
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