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From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
	Paul Mackerras <paulus@samba.org>,
	linux-kernel@vger.kernel.org,
	Alistair Popple <alistair@popple.id.au>
Subject: [PATCH 1/6] powerpc/powernv: use it_page_shift for TCE invalidation
Date: Fri,  6 Jun 2014 18:44:01 +1000	[thread overview]
Message-ID: <1402044246-13650-2-git-send-email-aik@ozlabs.ru> (raw)
In-Reply-To: <1402044246-13650-1-git-send-email-aik@ozlabs.ru>

This fixes IODA1/2 to use it_page_shift as it may be bigger than 4K.

This changes involved constant values to use "ull" modifier.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
 arch/powerpc/platforms/powernv/pci-ioda.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 98824aa..8307fe5 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -512,15 +512,16 @@ static void pnv_pci_ioda1_tce_invalidate(struct pnv_ioda_pe *pe,
 		(__be64 __iomem *)pe->tce_inval_reg_phys :
 		(__be64 __iomem *)tbl->it_index;
 	unsigned long start, end, inc;
+	const unsigned shift = tbl->it_page_shift;
 
 	start = __pa(startp);
 	end = __pa(endp);
 
 	/* BML uses this case for p6/p7/galaxy2: Shift addr and put in node */
 	if (tbl->it_busno) {
-		start <<= 12;
-		end <<= 12;
-		inc = 128 << 12;
+		start <<= shift;
+		end <<= shift;
+		inc = 128ull << shift;
 		start |= tbl->it_busno;
 		end |= tbl->it_busno;
 	} else if (tbl->it_type & TCE_PCI_SWINV_PAIR) {
@@ -558,18 +559,19 @@ static void pnv_pci_ioda2_tce_invalidate(struct pnv_ioda_pe *pe,
 	__be64 __iomem *invalidate = rm ?
 		(__be64 __iomem *)pe->tce_inval_reg_phys :
 		(__be64 __iomem *)tbl->it_index;
+	const unsigned shift = tbl->it_page_shift;
 
 	/* We'll invalidate DMA address in PE scope */
-	start = 0x2ul << 60;
+	start = 0x2ull << 60;
 	start |= (pe->pe_number & 0xFF);
 	end = start;
 
 	/* Figure out the start, end and step */
 	inc = tbl->it_offset + (((u64)startp - tbl->it_base) / sizeof(u64));
-	start |= (inc << 12);
+	start |= (inc << shift);
 	inc = tbl->it_offset + (((u64)endp - tbl->it_base) / sizeof(u64));
-	end |= (inc << 12);
-	inc = (0x1ul << 12);
+	end |= (inc << shift);
+	inc = (0x1ull << shift);
 	mb();
 
 	while (start <= end) {
-- 
2.0.0

  reply	other threads:[~2014-06-06  8:44 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-06  8:44 [PATCH 0/6] powerpc/powernv: Applying it_page_shift to platform code Alexey Kardashevskiy
2014-06-06  8:44 ` Alexey Kardashevskiy [this message]
2014-06-06  8:44 ` [PATCH 2/6] powerpc/powernv: use it_page_shift in TCE build Alexey Kardashevskiy
2014-06-06  8:44 ` [PATCH 3/6] powerpc/powernv: Add a page size parameter to pnv_pci_setup_iommu_table() Alexey Kardashevskiy
2014-06-06  8:44 ` [PATCH 4/6] powerpc/powernv: Add @it_owner to iommu_table struct Alexey Kardashevskiy
2014-06-06  8:44 ` [PATCH 5/6] powerpc/powernv: Make set_bypass() callback a type Alexey Kardashevskiy
2014-06-06  8:44 ` [PATCH 6/6] powerpc/powernv: Make invalidate() callback an iommu_table callback Alexey Kardashevskiy
2014-06-18  7:56 ` [PATCH 0/6] powerpc/powernv: Applying it_page_shift to platform code Alexey Kardashevskiy
2014-06-18 13:07   ` Benjamin Herrenschmidt

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