[PATCH v4 23/28] powerpc/powernv: Change prototypes to receive iommu

From: Alexey Kardashevskiy
Date: Mon Feb 16 2015 - 05:10:14 EST


This changes few functions to receive a powerpc_iommu pointer
rather than PE as they are going to be a part of upcoming
powerpc_iommu_ops callback set.

Signed-off-by: Alexey Kardashevskiy <aik@xxxxxxxxx>
---
arch/powerpc/platforms/powernv/pci-ioda.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index f542819..29bd7a4 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1360,10 +1360,12 @@ static __be64 *pnv_alloc_tce_table(int nid,
return addr;
}

-static long pnv_pci_ioda2_create_table(struct pnv_ioda_pe *pe,
+static long pnv_pci_ioda2_create_table(struct powerpc_iommu *iommu,
__u32 page_shift, __u32 window_shift, __u32 levels,
struct iommu_table *tbl)
{
+ struct pnv_ioda_pe *pe = container_of(iommu, struct pnv_ioda_pe,
+ iommu);
int nid = pe->phb->hose->node;
void *addr;
unsigned long tce_table_size, left;
@@ -1419,9 +1421,11 @@ static void pnv_pci_ioda2_free_table(struct iommu_table *tbl)
iommu_reset_table(tbl, "ioda2");
}

-static long pnv_pci_ioda2_set_window(struct pnv_ioda_pe *pe,
+static long pnv_pci_ioda2_set_window(struct powerpc_iommu *iommu,
struct iommu_table *tbl)
{
+ struct pnv_ioda_pe *pe = container_of(iommu, struct pnv_ioda_pe,
+ iommu);
struct pnv_phb *phb = pe->phb;
const __be64 *swinvp;
int64_t rc;
@@ -1554,12 +1558,11 @@ static void pnv_pci_ioda2_setup_dma_pe(struct pnv_phb *phb,

/* The PE will reserve all possible 32-bits space */
pe->tce32_seg = 0;
-
end = (1 << ilog2(phb->ioda.m32_pci_base));
pe_info(pe, "Setting up 32-bit TCE table at 0..%08x\n",
end);

- rc = pnv_pci_ioda2_create_table(pe, IOMMU_PAGE_SHIFT_4K,
+ rc = pnv_pci_ioda2_create_table(&pe->iommu, IOMMU_PAGE_SHIFT_4K,
ilog2(phb->ioda.m32_pci_base),
POWERPC_IOMMU_DEFAULT_LEVELS, tbl);
if (rc) {
@@ -1571,7 +1574,7 @@ static void pnv_pci_ioda2_setup_dma_pe(struct pnv_phb *phb,
pe->iommu.tables[0].it_iommu = &pe->iommu;
pe->iommu.ops = &pnv_pci_ioda2_ops;

- rc = pnv_pci_ioda2_set_window(pe, tbl);
+ rc = pnv_pci_ioda2_set_window(&pe->iommu, tbl);
if (rc) {
pe_err(pe, "Failed to configure 32-bit TCE table,"
" err %ld\n", rc);
--
2.0.0

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