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From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
	Alistair Popple <alistair@popple.id.au>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Daniel Axtens <dja@axtens.net>,
	David Gibson <david@gibson.dropbear.id.au>,
	Gavin Shan <gwshan@linux.vnet.ibm.com>,
	Paul Mackerras <paulus@samba.org>,
	Russell Currey <ruscur@russell.cc>,
	Alex Williamson <alex.williamson@redhat.com>
Subject: [PATCH kernel 03/10] powerpc/powernv: Define TCE Kill flags
Date: Wed,  9 Mar 2016 17:28:59 +1100	[thread overview]
Message-ID: <1457504946-40649-4-git-send-email-aik@ozlabs.ru> (raw)
In-Reply-To: <1457504946-40649-1-git-send-email-aik@ozlabs.ru>

This replaces magic constants for TCE Kill IODA2 register with macros.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
 arch/powerpc/platforms/powernv/pci-ioda.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 889eca3..33e9489 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1824,10 +1824,13 @@ static struct iommu_table_ops pnv_ioda1_iommu_ops = {
 	.get = pnv_tce_get,
 };
 
+#define TCE_KILL_INVAL_PE   PPC_BIT(1)
+#define TCE_KILL_INVAL_TCE  PPC_BIT(2)
+
 static inline void pnv_pci_ioda2_tce_invalidate_pe(struct pnv_ioda_pe *pe)
 {
 	/* 01xb - invalidate TCEs that match the specified PE# */
-	unsigned long val = (0x4ull << 60) | (pe->pe_number & 0xFF);
+	unsigned long val = TCE_KILL_INVAL_PE | (pe->pe_number & 0xFF);
 	struct pnv_phb *phb = pe->phb;
 	struct pnv_ioda_pe *npe;
 	int i;
@@ -1855,7 +1858,7 @@ static void pnv_pci_ioda2_do_tce_invalidate(unsigned pe_number, bool rm,
 	unsigned long start, end, inc;
 
 	/* We'll invalidate DMA address in PE scope */
-	start = 0x2ull << 60;
+	start = TCE_KILL_INVAL_TCE;
 	start |= (pe_number & 0xFF);
 	end = start;
 
-- 
2.5.0.rc3

  parent reply	other threads:[~2016-03-09  6:30 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-09  6:28 [PATCH kernel 00/10] powerpc/powernv/npu: Enable PCI pass through for NVLink Alexey Kardashevskiy
2016-03-09  6:28 ` [PATCH kernel 01/10] vfio/spapr: Relax the IOMMU compatibility check Alexey Kardashevskiy
2016-03-10  5:35   ` David Gibson
2016-03-09  6:28 ` [PATCH kernel 02/10] powerpc/powernv: Rename pnv_pci_ioda2_tce_invalidate_entire Alexey Kardashevskiy
2016-03-10  5:35   ` David Gibson
2016-03-09  6:28 ` Alexey Kardashevskiy [this message]
2016-03-10  5:36   ` [PATCH kernel 03/10] powerpc/powernv: Define TCE Kill flags David Gibson
2016-03-09  6:29 ` [PATCH kernel 04/10] powerpc/powernv/npu: TCE Kill helpers cleanup Alexey Kardashevskiy
2016-03-10  5:42   ` David Gibson
2016-03-21  2:51   ` Alistair Popple
2016-03-09  6:29 ` [PATCH kernel 05/10] powerpc/powernv/npu: Use the correct IOMMU page size Alexey Kardashevskiy
2016-03-10  5:43   ` David Gibson
2016-03-21  2:57   ` Alistair Popple
2016-03-09  6:29 ` [PATCH kernel 06/10] powerpc/powernv/npu: Simplify DMA setup Alexey Kardashevskiy
2016-03-16  5:55   ` David Gibson
2016-03-21  3:59     ` Alistair Popple
2016-03-09  6:29 ` [PATCH kernel 07/10] powerpc/powernv/npu: Rework TCE Kill handling Alexey Kardashevskiy
2016-03-21  6:50   ` Alistair Popple
2016-03-09  6:29 ` [PATCH kernel 08/10] powerpc/powernv/npu: Add NPU devices to IOMMU group Alexey Kardashevskiy
2016-03-21  4:48   ` David Gibson
2016-03-21  8:25     ` Alexey Kardashevskiy
2016-03-22  0:25       ` David Gibson
2016-03-22  1:48         ` Alexey Kardashevskiy
2016-03-22 12:41           ` Benjamin Herrenschmidt
2016-03-09  6:29 ` [PATCH kernel 09/10] powerpc/powernv/ioda2: Export some helpers Alexey Kardashevskiy
2016-03-09  6:29 ` [PATCH kernel 10/10] powerpc/powernv/npu: Enable passing through via VFIO Alexey Kardashevskiy

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