diff options
Diffstat (limited to 'drivers/bus/fsl-mc/fsl-mc-allocator.c')
| -rw-r--r-- | drivers/bus/fsl-mc/fsl-mc-allocator.c | 35 |
1 files changed, 18 insertions, 17 deletions
diff --git a/drivers/bus/fsl-mc/fsl-mc-allocator.c b/drivers/bus/fsl-mc/fsl-mc-allocator.c index cc7bb900f524..dced427ca8ba 100644 --- a/drivers/bus/fsl-mc/fsl-mc-allocator.c +++ b/drivers/bus/fsl-mc/fsl-mc-allocator.c @@ -254,7 +254,7 @@ EXPORT_SYMBOL_GPL(fsl_mc_resource_free); * @mc_dev: fsl-mc device which is used in conjunction with the * allocated object * @pool_type: pool type - * @new_mc_dev: pointer to area where the pointer to the allocated device + * @new_mc_adev: pointer to area where the pointer to the allocated device * is to be returned * * Allocatable objects are always used in conjunction with some functional @@ -292,8 +292,10 @@ int __must_check fsl_mc_object_allocate(struct fsl_mc_device *mc_dev, goto error; mc_adev = resource->data; - if (!mc_adev) + if (!mc_adev) { + error = -EINVAL; goto error; + } mc_adev->consumer_link = device_link_add(&mc_dev->dev, &mc_adev->dev, @@ -344,18 +346,21 @@ EXPORT_SYMBOL_GPL(fsl_mc_object_free); * Initialize the interrupt pool associated with an fsl-mc bus. * It allocates a block of IRQs from the GIC-ITS. */ -int fsl_mc_populate_irq_pool(struct fsl_mc_bus *mc_bus, +int fsl_mc_populate_irq_pool(struct fsl_mc_device *mc_bus_dev, unsigned int irq_count) { unsigned int i; - struct msi_desc *msi_desc; struct fsl_mc_device_irq *irq_resources; struct fsl_mc_device_irq *mc_dev_irq; int error; - struct fsl_mc_device *mc_bus_dev = &mc_bus->mc_dev; + struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev); struct fsl_mc_resource_pool *res_pool = &mc_bus->resource_pools[FSL_MC_POOL_IRQ]; + /* do nothing if the IRQ pool is already populated */ + if (mc_bus->irq_resources) + return 0; + if (irq_count == 0 || irq_count > FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS) return -EINVAL; @@ -382,16 +387,12 @@ int fsl_mc_populate_irq_pool(struct fsl_mc_bus *mc_bus, mc_dev_irq->resource.type = res_pool->type; mc_dev_irq->resource.data = mc_dev_irq; mc_dev_irq->resource.parent_pool = res_pool; + mc_dev_irq->virq = msi_get_virq(&mc_bus_dev->dev, i); + mc_dev_irq->resource.id = mc_dev_irq->virq; INIT_LIST_HEAD(&mc_dev_irq->resource.node); list_add_tail(&mc_dev_irq->resource.node, &res_pool->free_list); } - for_each_msi_entry(msi_desc, &mc_bus_dev->dev) { - mc_dev_irq = &irq_resources[msi_desc->fsl_mc.msi_index]; - mc_dev_irq->msi_desc = msi_desc; - mc_dev_irq->resource.id = msi_desc->irq; - } - res_pool->max_count = irq_count; res_pool->free_count = irq_count; mc_bus->irq_resources = irq_resources; @@ -403,13 +404,13 @@ cleanup_msi_irqs: } EXPORT_SYMBOL_GPL(fsl_mc_populate_irq_pool); -/** +/* * Teardown the interrupt pool associated with an fsl-mc bus. * It frees the IRQs that were allocated to the pool, back to the GIC-ITS. */ -void fsl_mc_cleanup_irq_pool(struct fsl_mc_bus *mc_bus) +void fsl_mc_cleanup_irq_pool(struct fsl_mc_device *mc_bus_dev) { - struct fsl_mc_device *mc_bus_dev = &mc_bus->mc_dev; + struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev); struct fsl_mc_resource_pool *res_pool = &mc_bus->resource_pools[FSL_MC_POOL_IRQ]; @@ -430,7 +431,7 @@ void fsl_mc_cleanup_irq_pool(struct fsl_mc_bus *mc_bus) } EXPORT_SYMBOL_GPL(fsl_mc_cleanup_irq_pool); -/** +/* * Allocate the IRQs required by a given fsl-mc device. */ int __must_check fsl_mc_allocate_irqs(struct fsl_mc_device *mc_dev) @@ -572,7 +573,7 @@ void fsl_mc_cleanup_all_resource_pools(struct fsl_mc_device *mc_bus_dev) fsl_mc_cleanup_resource_pool(mc_bus_dev, pool_type); } -/** +/* * fsl_mc_allocator_probe - callback invoked when an allocatable device is * being added to the system */ @@ -604,7 +605,7 @@ static int fsl_mc_allocator_probe(struct fsl_mc_device *mc_dev) return 0; } -/** +/* * fsl_mc_allocator_remove - callback invoked when an allocatable device is * being removed from the system */ |