From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: kvm@vger.kernel.org, Alexey Kardashevskiy <aik@ozlabs.ru>,
linux-kernel@vger.kernel.org,
Alex Williamson <alex.williamson@redhat.com>,
Paul Mackerras <paulus@samba.org>
Subject: [PATCH v5 12/29] powerpc/iommu: Introduce iommu_table_alloc() helper
Date: Tue, 10 Mar 2015 01:07:08 +1100 [thread overview]
Message-ID: <1425910045-26167-13-git-send-email-aik@ozlabs.ru> (raw)
In-Reply-To: <1425910045-26167-1-git-send-email-aik@ozlabs.ru>
This replaces multiple calls of kzalloc_node() with a new
iommu_table_alloc() helper. Right now it calls kzalloc_node() but
later it will be modified to allocate a iommu_table_group struct with
a single iommu_table in it.
Later the helper will allocate a iommu_table_group struct which embeds
the iommu table(s).
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
arch/powerpc/include/asm/iommu.h | 1 +
arch/powerpc/kernel/iommu.c | 9 +++++++++
arch/powerpc/platforms/powernv/pci.c | 2 +-
arch/powerpc/platforms/pseries/iommu.c | 12 ++++--------
4 files changed, 15 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/include/asm/iommu.h b/arch/powerpc/include/asm/iommu.h
index d909e2a..eb75726 100644
--- a/arch/powerpc/include/asm/iommu.h
+++ b/arch/powerpc/include/asm/iommu.h
@@ -117,6 +117,7 @@ static inline void *get_iommu_table_base(struct device *dev)
return dev->archdata.dma_data.iommu_table_base;
}
+extern struct iommu_table *iommu_table_alloc(int node);
/* Frees table for an individual device node */
extern void iommu_free_table(struct iommu_table *tbl, const char *node_name);
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index 57cb615..dbc5d8d 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -710,6 +710,15 @@ struct iommu_table *iommu_init_table(struct iommu_table *tbl, int nid)
return tbl;
}
+struct iommu_table *iommu_table_alloc(int node)
+{
+ struct iommu_table *tbl;
+
+ tbl = kzalloc_node(sizeof(struct iommu_table), GFP_KERNEL, node);
+
+ return tbl;
+}
+
void iommu_free_table(struct iommu_table *tbl, const char *node_name)
{
unsigned long bitmap_sz;
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index c619ec6..1c31ac8 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -680,7 +680,7 @@ static struct iommu_table *pnv_pci_setup_bml_iommu(struct pci_controller *hose)
hose->dn->full_name);
return NULL;
}
- tbl = kzalloc_node(sizeof(struct iommu_table), GFP_KERNEL, hose->node);
+ tbl = iommu_table_alloc(hose->node);
if (WARN_ON(!tbl))
return NULL;
pnv_pci_setup_iommu_table(tbl, __va(be64_to_cpup(basep)),
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 48d1fde..41a8b14 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -617,8 +617,7 @@ static void pci_dma_bus_setup_pSeries(struct pci_bus *bus)
pci->phb->dma_window_size = 0x8000000ul;
pci->phb->dma_window_base_cur = 0x8000000ul;
- tbl = kzalloc_node(sizeof(struct iommu_table), GFP_KERNEL,
- pci->phb->node);
+ tbl = iommu_table_alloc(pci->phb->node);
iommu_table_setparms(pci->phb, dn, tbl);
tbl->it_ops = &iommu_table_pseries_ops;
@@ -669,8 +668,7 @@ static void pci_dma_bus_setup_pSeriesLP(struct pci_bus *bus)
pdn->full_name, ppci->iommu_table);
if (!ppci->iommu_table) {
- tbl = kzalloc_node(sizeof(struct iommu_table), GFP_KERNEL,
- ppci->phb->node);
+ tbl = iommu_table_alloc(ppci->phb->node);
iommu_table_setparms_lpar(ppci->phb, pdn, tbl, dma_window);
tbl->it_ops = &iommu_table_lpar_multi_ops;
ppci->iommu_table = iommu_init_table(tbl, ppci->phb->node);
@@ -697,8 +695,7 @@ static void pci_dma_dev_setup_pSeries(struct pci_dev *dev)
struct pci_controller *phb = PCI_DN(dn)->phb;
pr_debug(" --> first child, no bridge. Allocating iommu table.\n");
- tbl = kzalloc_node(sizeof(struct iommu_table), GFP_KERNEL,
- phb->node);
+ tbl = iommu_table_alloc(phb->node);
iommu_table_setparms(phb, dn, tbl);
tbl->it_ops = &iommu_table_pseries_ops;
PCI_DN(dn)->iommu_table = iommu_init_table(tbl, phb->node);
@@ -1120,8 +1117,7 @@ static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev)
pci = PCI_DN(pdn);
if (!pci->iommu_table) {
- tbl = kzalloc_node(sizeof(struct iommu_table), GFP_KERNEL,
- pci->phb->node);
+ tbl = iommu_table_alloc(pci->phb->node);
iommu_table_setparms_lpar(pci->phb, pdn, tbl, dma_window);
tbl->it_ops = &iommu_table_lpar_multi_ops;
pci->iommu_table = iommu_init_table(tbl, pci->phb->node);
--
2.0.0
next prev parent reply other threads:[~2015-03-09 14:08 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-09 14:06 [PATCH v5 00/29] powerpc/iommu/vfio: Enable Dynamic DMA windows Alexey Kardashevskiy
2015-03-09 14:06 ` [PATCH v5 01/29] vfio: powerpc/spapr: Move page pinning from arch code to VFIO IOMMU driver Alexey Kardashevskiy
2015-03-09 14:06 ` [PATCH v5 02/29] vfio: powerpc/spapr: Do cleanup when releasing the group Alexey Kardashevskiy
2015-03-09 14:06 ` [PATCH v5 03/29] vfio: powerpc/spapr: Check that TCE page size is equal to it_page_size Alexey Kardashevskiy
2015-03-10 19:56 ` Alex Williamson
2015-03-10 22:57 ` Alexey Kardashevskiy
2015-03-10 23:03 ` Alex Williamson
2015-03-10 23:14 ` Benjamin Herrenschmidt
2015-03-10 23:34 ` Alex Williamson
2015-03-10 23:45 ` Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 04/29] vfio: powerpc/spapr: Use it_page_size Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 05/29] vfio: powerpc/spapr: Move locked_vm accounting to helpers Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 06/29] vfio: powerpc/spapr: Disable DMA mappings on disabled container Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 07/29] vfio: powerpc/spapr: Moving pinning/unpinning to helpers Alexey Kardashevskiy
2015-03-10 23:36 ` Alex Williamson
2015-03-09 14:07 ` [PATCH v5 08/29] vfio: powerpc/spapr: Register memory Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 09/29] vfio: powerpc/spapr: Rework attach/detach Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 10/29] powerpc/powernv: Do not set "read" flag if direction==DMA_NONE Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 11/29] powerpc/iommu: Move tce_xxx callbacks from ppc_md to iommu_table Alexey Kardashevskiy
2015-03-09 14:07 ` Alexey Kardashevskiy [this message]
2015-03-09 14:07 ` [PATCH v5 13/29] powerpc/spapr: vfio: Switch from iommu_table to new iommu_table_group Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 14/29] vfio: powerpc/spapr: powerpc/iommu: Rework IOMMU ownership control Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 15/29] vfio: powerpc/spapr: powerpc/powernv/ioda2: " Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 16/29] powerpc/iommu: Fix IOMMU ownership control functions Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 17/29] powerpc/powernv/ioda/ioda2: Rework tce_build()/tce_free() Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 18/29] powerpc/iommu/powernv: Release replaced TCE Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 19/29] poweppc/powernv/ioda2: Rework iommu_table creation Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 20/29] powerpc/powernv/ioda2: Introduce pnv_pci_ioda2_create_table/pnc_pci_free_table Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 21/29] powerpc/powernv/ioda2: Introduce pnv_pci_ioda2_set_window Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 22/29] powerpc/iommu: Split iommu_free_table into 2 helpers Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 23/29] powerpc/powernv: Implement multilevel TCE tables Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 24/29] powerpc/powernv: Change prototypes to receive iommu Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 25/29] powerpc/powernv/ioda: Define and implement DMA table/window management callbacks Alexey Kardashevskiy
2015-03-11 8:54 ` Alexey Kardashevskiy
2015-03-11 9:31 ` Benjamin Herrenschmidt
2015-03-09 14:07 ` [PATCH v5 26/29] vfio: powerpc/spapr: Define v2 IOMMU Alexey Kardashevskiy
2015-03-11 0:00 ` Alex Williamson
2015-03-09 14:07 ` [PATCH v5 27/29] vfio: powerpc/spapr: powerpc/powernv/ioda2: Rework ownership Alexey Kardashevskiy
2015-03-11 0:09 ` Alex Williamson
2015-03-11 0:29 ` Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 28/29] vfio: powerpc/spapr: Support multiple groups in one container if possible Alexey Kardashevskiy
2015-03-09 14:07 ` [PATCH v5 29/29] vfio: powerpc/spapr: Support Dynamic DMA windows Alexey Kardashevskiy
2015-03-11 1:10 ` Alex Williamson
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