Every PHB maintains a list of PEs based on their DMA32 weight. After patch "powerpc/powernv: Create PEs dynamically", the list is useless and it's safe to remove it.
Signed-off-by: Gavin Shan <[email protected]> --- arch/powerpc/platforms/powernv/pci-ioda.c | 18 ------------------ arch/powerpc/platforms/powernv/pci.h | 6 ------ 2 files changed, 24 deletions(-) diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 37847a3..84b771e 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -938,20 +938,6 @@ out: return 0; } -static void pnv_ioda_link_pe_by_weight(struct pnv_phb *phb, - struct pnv_ioda_pe *pe) -{ - struct pnv_ioda_pe *lpe; - - list_for_each_entry(lpe, &phb->ioda.pe_dma_list, dma_link) { - if (lpe->dma32_weight < pe->dma32_weight) { - list_add_tail(&pe->dma_link, &lpe->dma_link); - return; - } - } - list_add_tail(&pe->dma_link, &phb->ioda.pe_dma_list); -} - static unsigned int pnv_ioda_dma_weight(struct pci_dev *dev) { struct pci_controller *hose = pci_bus_to_host(dev->bus); @@ -1169,9 +1155,6 @@ static struct pnv_ioda_pe *pnv_ioda_setup_bus_PE(struct pci_bus *bus, bool all) /* Put PE to the list */ list_add_tail(&pe->list, &phb->ioda.pe_list); - /* Link the PE */ - pnv_ioda_link_pe_by_weight(phb, pe); - return pe; } @@ -3313,7 +3296,6 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np, phb->ioda.root_pe_idx = IODA_INVALID_PE; } - INIT_LIST_HEAD(&phb->ioda.pe_dma_list); INIT_LIST_HEAD(&phb->ioda.pe_list); mutex_init(&phb->ioda.pe_list_mutex); diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h index a160491..f8e6022 100644 --- a/arch/powerpc/platforms/powernv/pci.h +++ b/arch/powerpc/platforms/powernv/pci.h @@ -83,7 +83,6 @@ struct pnv_ioda_pe { struct list_head slaves; /* Link in list of PE#s */ - struct list_head dma_link; struct list_head list; }; @@ -185,11 +184,6 @@ struct pnv_phb { /* 32-bit TCE tables allocation */ unsigned long dma32_segcount; - /* Sorted list of used PE's, sorted at - * boot for resource allocation purposes - */ - struct list_head pe_dma_list; - /* TCE cache invalidate registers (physical and * remapped) */ -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
