From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: David Gibson <david@gibson.dropbear.id.au>,
kvm-ppc@vger.kernel.org, kvm@vger.kernel.org,
Alistair Popple <alistair@popple.id.au>,
Alex Williamson <alex.williamson@redhat.com>,
Paul Mackerras <paulus@ozlabs.org>,
Alexey Kardashevskiy <aik@ozlabs.ru>
Subject: [PATCH kernel v3 4/5] powerpc/pseries/iommu: Switch to xchg_no_kill
Date: Thu, 29 Aug 2019 18:52:51 +1000 [thread overview]
Message-ID: <20190829085252.72370-5-aik@ozlabs.ru> (raw)
In-Reply-To: <20190829085252.72370-1-aik@ozlabs.ru>
This is the last implementation of iommu_table_ops::exchange() which
we are about to remove.
This implements xchg_no_kill() for pseries. Since it is paravirtual
platform, the hypervisor does TCE invalidations and we do not have
to deal with it here, hence no tce_kill() hook.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
Changes:
v3:
* new to the series and it fixes compile error from v2
---
arch/powerpc/platforms/pseries/iommu.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 42fb03253334..df7db33ca93b 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -621,7 +621,8 @@ static void pci_dma_bus_setup_pSeries(struct pci_bus *bus)
#ifdef CONFIG_IOMMU_API
static int tce_exchange_pseries(struct iommu_table *tbl, long index, unsigned
- long *tce, enum dma_data_direction *direction)
+ long *tce, enum dma_data_direction *direction,
+ bool realmode)
{
long rc;
unsigned long ioba = (unsigned long) index << tbl->it_page_shift;
@@ -649,7 +650,7 @@ static int tce_exchange_pseries(struct iommu_table *tbl, long index, unsigned
struct iommu_table_ops iommu_table_lpar_multi_ops = {
.set = tce_buildmulti_pSeriesLP,
#ifdef CONFIG_IOMMU_API
- .exchange = tce_exchange_pseries,
+ .xchg_no_kill = tce_exchange_pseries,
#endif
.clear = tce_freemulti_pSeriesLP,
.get = tce_get_pSeriesLP
--
2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: kvm@vger.kernel.org, Alexey Kardashevskiy <aik@ozlabs.ru>,
Alistair Popple <alistair@popple.id.au>,
kvm-ppc@vger.kernel.org,
Alex Williamson <alex.williamson@redhat.com>,
David Gibson <david@gibson.dropbear.id.au>
Subject: [PATCH kernel v3 4/5] powerpc/pseries/iommu: Switch to xchg_no_kill
Date: Thu, 29 Aug 2019 18:52:51 +1000 [thread overview]
Message-ID: <20190829085252.72370-5-aik@ozlabs.ru> (raw)
In-Reply-To: <20190829085252.72370-1-aik@ozlabs.ru>
This is the last implementation of iommu_table_ops::exchange() which
we are about to remove.
This implements xchg_no_kill() for pseries. Since it is paravirtual
platform, the hypervisor does TCE invalidations and we do not have
to deal with it here, hence no tce_kill() hook.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
Changes:
v3:
* new to the series and it fixes compile error from v2
---
arch/powerpc/platforms/pseries/iommu.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 42fb03253334..df7db33ca93b 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -621,7 +621,8 @@ static void pci_dma_bus_setup_pSeries(struct pci_bus *bus)
#ifdef CONFIG_IOMMU_API
static int tce_exchange_pseries(struct iommu_table *tbl, long index, unsigned
- long *tce, enum dma_data_direction *direction)
+ long *tce, enum dma_data_direction *direction,
+ bool realmode)
{
long rc;
unsigned long ioba = (unsigned long) index << tbl->it_page_shift;
@@ -649,7 +650,7 @@ static int tce_exchange_pseries(struct iommu_table *tbl, long index, unsigned
struct iommu_table_ops iommu_table_lpar_multi_ops = {
.set = tce_buildmulti_pSeriesLP,
#ifdef CONFIG_IOMMU_API
- .exchange = tce_exchange_pseries,
+ .xchg_no_kill = tce_exchange_pseries,
#endif
.clear = tce_freemulti_pSeriesLP,
.get = tce_get_pSeriesLP
--
2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: David Gibson <david@gibson.dropbear.id.au>,
kvm-ppc@vger.kernel.org, kvm@vger.kernel.org,
Alistair Popple <alistair@popple.id.au>,
Alex Williamson <alex.williamson@redhat.com>,
Paul Mackerras <paulus@ozlabs.org>,
Alexey Kardashevskiy <aik@ozlabs.ru>
Subject: [PATCH kernel v3 4/5] powerpc/pseries/iommu: Switch to xchg_no_kill
Date: Thu, 29 Aug 2019 08:52:51 +0000 [thread overview]
Message-ID: <20190829085252.72370-5-aik@ozlabs.ru> (raw)
In-Reply-To: <20190829085252.72370-1-aik@ozlabs.ru>
This is the last implementation of iommu_table_ops::exchange() which
we are about to remove.
This implements xchg_no_kill() for pseries. Since it is paravirtual
platform, the hypervisor does TCE invalidations and we do not have
to deal with it here, hence no tce_kill() hook.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
Changes:
v3:
* new to the series and it fixes compile error from v2
---
arch/powerpc/platforms/pseries/iommu.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 42fb03253334..df7db33ca93b 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -621,7 +621,8 @@ static void pci_dma_bus_setup_pSeries(struct pci_bus *bus)
#ifdef CONFIG_IOMMU_API
static int tce_exchange_pseries(struct iommu_table *tbl, long index, unsigned
- long *tce, enum dma_data_direction *direction)
+ long *tce, enum dma_data_direction *direction,
+ bool realmode)
{
long rc;
unsigned long ioba = (unsigned long) index << tbl->it_page_shift;
@@ -649,7 +650,7 @@ static int tce_exchange_pseries(struct iommu_table *tbl, long index, unsigned
struct iommu_table_ops iommu_table_lpar_multi_ops = {
.set = tce_buildmulti_pSeriesLP,
#ifdef CONFIG_IOMMU_API
- .exchange = tce_exchange_pseries,
+ .xchg_no_kill = tce_exchange_pseries,
#endif
.clear = tce_freemulti_pSeriesLP,
.get = tce_get_pSeriesLP
--
2.17.1
next prev parent reply other threads:[~2019-08-29 8:53 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-29 8:52 [PATCH kernel v3 0/5] powerpc/powernv/kvm: Invalidate multiple TCEs at once Alexey Kardashevskiy
2019-08-29 8:52 ` Alexey Kardashevskiy
2019-08-29 8:52 ` Alexey Kardashevskiy
2019-08-29 8:52 ` [PATCH kernel v3 1/5] powerpc/powernv/ioda: Split out TCE invalidation from TCE updates Alexey Kardashevskiy
2019-08-29 8:52 ` Alexey Kardashevskiy
2019-08-29 8:52 ` Alexey Kardashevskiy
2019-09-02 3:06 ` Michael Ellerman
2019-09-02 3:06 ` Michael Ellerman
2019-08-29 8:52 ` [PATCH kernel v3 2/5] KVM: PPC: Book3S: Invalidate multiple TCEs at once Alexey Kardashevskiy
2019-08-29 8:52 ` Alexey Kardashevskiy
2019-08-29 8:52 ` Alexey Kardashevskiy
2019-08-29 8:52 ` [PATCH kernel v3 3/5] vfio/spapr_tce: " Alexey Kardashevskiy
2019-08-29 8:52 ` Alexey Kardashevskiy
2019-08-29 8:52 ` Alexey Kardashevskiy
2019-08-29 8:52 ` Alexey Kardashevskiy [this message]
2019-08-29 8:52 ` [PATCH kernel v3 4/5] powerpc/pseries/iommu: Switch to xchg_no_kill Alexey Kardashevskiy
2019-08-29 8:52 ` Alexey Kardashevskiy
2019-08-29 8:52 ` [PATCH kernel v3 5/5] powerpc/powernv/ioda: Remove obsolete iommu_table_ops::exchange callbacks Alexey Kardashevskiy
2019-08-29 8:52 ` Alexey Kardashevskiy
2019-08-29 8:52 ` Alexey Kardashevskiy
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