2016-07-04 05:33:07 +02:00
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/*
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* QEMU sPAPR Dynamic DMA windows support
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*
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* Copyright (c) 2015 Alexey Kardashevskiy, IBM Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License,
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* or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "qemu/error-report.h"
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2019-05-23 16:35:07 +02:00
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#include "qemu/module.h"
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2016-07-04 05:33:07 +02:00
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#include "hw/ppc/spapr.h"
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#include "hw/pci-host/spapr.h"
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#include "trace.h"
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static int spapr_phb_get_active_win_num_cb(Object *child, void *opaque)
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{
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spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
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SpaprTceTable *tcet;
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2016-07-04 05:33:07 +02:00
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|
|
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
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tcet = (SpaprTceTable *) object_dynamic_cast(child, TYPE_SPAPR_TCE_TABLE);
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2016-07-04 05:33:07 +02:00
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if (tcet && tcet->nb_table) {
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++*(unsigned *)opaque;
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}
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return 0;
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}
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spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
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static unsigned spapr_phb_get_active_win_num(SpaprPhbState *sphb)
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2016-07-04 05:33:07 +02:00
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{
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unsigned ret = 0;
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object_child_foreach(OBJECT(sphb), spapr_phb_get_active_win_num_cb, &ret);
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return ret;
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}
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static int spapr_phb_get_free_liobn_cb(Object *child, void *opaque)
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{
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spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
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SpaprTceTable *tcet;
|
2016-07-04 05:33:07 +02:00
|
|
|
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
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tcet = (SpaprTceTable *) object_dynamic_cast(child, TYPE_SPAPR_TCE_TABLE);
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2016-07-04 05:33:07 +02:00
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if (tcet && !tcet->nb_table) {
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*(uint32_t *)opaque = tcet->liobn;
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return 1;
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}
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return 0;
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}
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|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
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static unsigned spapr_phb_get_free_liobn(SpaprPhbState *sphb)
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2016-07-04 05:33:07 +02:00
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{
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uint32_t liobn = 0;
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object_child_foreach(OBJECT(sphb), spapr_phb_get_free_liobn_cb, &liobn);
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return liobn;
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}
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static uint32_t spapr_page_mask_to_query_mask(uint64_t page_mask)
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{
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int i;
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uint32_t mask = 0;
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const struct { int shift; uint32_t mask; } masks[] = {
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{ 12, RTAS_DDW_PGSIZE_4K },
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{ 16, RTAS_DDW_PGSIZE_64K },
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2022-03-21 08:19:45 +01:00
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{ 21, RTAS_DDW_PGSIZE_2M },
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2016-07-04 05:33:07 +02:00
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{ 24, RTAS_DDW_PGSIZE_16M },
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{ 25, RTAS_DDW_PGSIZE_32M },
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{ 26, RTAS_DDW_PGSIZE_64M },
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{ 27, RTAS_DDW_PGSIZE_128M },
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{ 28, RTAS_DDW_PGSIZE_256M },
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{ 34, RTAS_DDW_PGSIZE_16G },
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};
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for (i = 0; i < ARRAY_SIZE(masks); ++i) {
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if (page_mask & (1ULL << masks[i].shift)) {
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mask |= masks[i].mask;
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}
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}
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return mask;
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}
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static void rtas_ibm_query_pe_dma_window(PowerPCCPU *cpu,
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
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SpaprMachineState *spapr,
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2016-07-04 05:33:07 +02:00
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uint32_t token, uint32_t nargs,
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target_ulong args,
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uint32_t nret, target_ulong rets)
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{
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
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SpaprPhbState *sphb;
|
2018-12-14 05:21:22 +01:00
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uint64_t buid;
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2016-07-04 05:33:07 +02:00
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uint32_t avail, addr, pgmask = 0;
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2022-06-23 09:31:36 +02:00
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if ((nargs != 3) || ((nret != 5) && (nret != 6))) {
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2016-07-04 05:33:07 +02:00
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goto param_error_exit;
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}
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buid = ((uint64_t)rtas_ld(args, 1) << 32) | rtas_ld(args, 2);
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addr = rtas_ld(args, 0);
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sphb = spapr_pci_find_phb(spapr, buid);
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if (!sphb || !sphb->ddw_enabled) {
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goto param_error_exit;
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}
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/* Translate page mask to LoPAPR format */
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pgmask = spapr_page_mask_to_query_mask(sphb->page_size_mask);
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avail = SPAPR_PCI_DMA_MAX_WINDOWS - spapr_phb_get_active_win_num(sphb);
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rtas_st(rets, 0, RTAS_OUT_SUCCESS);
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rtas_st(rets, 1, avail);
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2022-06-23 09:31:36 +02:00
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if (nret == 6) {
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/*
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* Set the Max TCE number as 1<<(58-21) = 0x20.0000.0000
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* 1<<59 is the huge window start and 21 is 2M page shift.
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*/
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rtas_st(rets, 2, 0x00000020);
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rtas_st(rets, 3, 0x00000000);
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rtas_st(rets, 4, pgmask);
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rtas_st(rets, 5, 0); /* DMA migration mask, not supported */
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} else {
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rtas_st(rets, 2, 0x80000000);
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rtas_st(rets, 3, pgmask);
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rtas_st(rets, 4, 0); /* DMA migration mask, not supported */
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}
|
2016-07-04 05:33:07 +02:00
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2018-12-14 05:21:22 +01:00
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trace_spapr_iommu_ddw_query(buid, addr, avail, 0x80000000, pgmask);
|
2016-07-04 05:33:07 +02:00
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return;
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param_error_exit:
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rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
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}
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static void rtas_ibm_create_pe_dma_window(PowerPCCPU *cpu,
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
SpaprMachineState *spapr,
|
2016-07-04 05:33:07 +02:00
|
|
|
uint32_t token, uint32_t nargs,
|
|
|
|
|
target_ulong args,
|
|
|
|
|
uint32_t nret, target_ulong rets)
|
|
|
|
|
{
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
SpaprPhbState *sphb;
|
|
|
|
|
SpaprTceTable *tcet = NULL;
|
2016-07-04 05:33:07 +02:00
|
|
|
uint32_t addr, page_shift, window_shift, liobn;
|
|
|
|
|
uint64_t buid, win_addr;
|
|
|
|
|
int windows;
|
|
|
|
|
|
|
|
|
|
if ((nargs != 5) || (nret != 4)) {
|
|
|
|
|
goto param_error_exit;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
buid = ((uint64_t)rtas_ld(args, 1) << 32) | rtas_ld(args, 2);
|
|
|
|
|
addr = rtas_ld(args, 0);
|
|
|
|
|
sphb = spapr_pci_find_phb(spapr, buid);
|
|
|
|
|
if (!sphb || !sphb->ddw_enabled) {
|
|
|
|
|
goto param_error_exit;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
page_shift = rtas_ld(args, 3);
|
|
|
|
|
window_shift = rtas_ld(args, 4);
|
|
|
|
|
liobn = spapr_phb_get_free_liobn(sphb);
|
|
|
|
|
windows = spapr_phb_get_active_win_num(sphb);
|
|
|
|
|
|
|
|
|
|
if (!(sphb->page_size_mask & (1ULL << page_shift)) ||
|
|
|
|
|
(window_shift < page_shift)) {
|
|
|
|
|
goto param_error_exit;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!liobn || !sphb->ddw_enabled || windows == SPAPR_PCI_DMA_MAX_WINDOWS) {
|
|
|
|
|
goto hw_error_exit;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
tcet = spapr_tce_find_by_liobn(liobn);
|
|
|
|
|
if (!tcet) {
|
|
|
|
|
goto hw_error_exit;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
win_addr = (windows == 0) ? sphb->dma_win_addr : sphb->dma64_win_addr;
|
2019-03-07 06:05:16 +01:00
|
|
|
/*
|
|
|
|
|
* We have just created a window, we know for the fact that it is empty,
|
|
|
|
|
* use a hack to avoid iterating over the table as it is quite possible
|
|
|
|
|
* to have billions of TCEs, all empty.
|
|
|
|
|
* Note that we cannot delay this to the first H_PUT_TCE as this hcall is
|
|
|
|
|
* mostly likely to be handled in KVM so QEMU just does not know if it
|
|
|
|
|
* happened.
|
|
|
|
|
*/
|
|
|
|
|
tcet->skipping_replay = true;
|
2016-07-04 05:33:07 +02:00
|
|
|
spapr_tce_table_enable(tcet, page_shift, win_addr,
|
|
|
|
|
1ULL << (window_shift - page_shift));
|
2019-03-07 06:05:16 +01:00
|
|
|
tcet->skipping_replay = false;
|
2016-07-04 05:33:07 +02:00
|
|
|
if (!tcet->nb_table) {
|
|
|
|
|
goto hw_error_exit;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
trace_spapr_iommu_ddw_create(buid, addr, 1ULL << page_shift,
|
|
|
|
|
1ULL << window_shift, tcet->bus_offset, liobn);
|
|
|
|
|
|
|
|
|
|
rtas_st(rets, 0, RTAS_OUT_SUCCESS);
|
|
|
|
|
rtas_st(rets, 1, liobn);
|
|
|
|
|
rtas_st(rets, 2, tcet->bus_offset >> 32);
|
|
|
|
|
rtas_st(rets, 3, tcet->bus_offset & ((uint32_t) -1));
|
|
|
|
|
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
hw_error_exit:
|
|
|
|
|
rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
param_error_exit:
|
|
|
|
|
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void rtas_ibm_remove_pe_dma_window(PowerPCCPU *cpu,
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
SpaprMachineState *spapr,
|
2016-07-04 05:33:07 +02:00
|
|
|
uint32_t token, uint32_t nargs,
|
|
|
|
|
target_ulong args,
|
|
|
|
|
uint32_t nret, target_ulong rets)
|
|
|
|
|
{
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
SpaprPhbState *sphb;
|
|
|
|
|
SpaprTceTable *tcet;
|
2016-07-04 05:33:07 +02:00
|
|
|
uint32_t liobn;
|
2022-06-22 07:29:55 +02:00
|
|
|
bool def_win_removed;
|
2016-07-04 05:33:07 +02:00
|
|
|
|
|
|
|
|
if ((nargs != 1) || (nret != 1)) {
|
|
|
|
|
goto param_error_exit;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
liobn = rtas_ld(args, 0);
|
|
|
|
|
tcet = spapr_tce_find_by_liobn(liobn);
|
|
|
|
|
if (!tcet) {
|
|
|
|
|
goto param_error_exit;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
sphb = SPAPR_PCI_HOST_BRIDGE(OBJECT(tcet)->parent);
|
|
|
|
|
if (!sphb || !sphb->ddw_enabled || !tcet->nb_table) {
|
|
|
|
|
goto param_error_exit;
|
|
|
|
|
}
|
|
|
|
|
|
2022-06-22 07:29:55 +02:00
|
|
|
def_win_removed = tcet->def_win;
|
2016-07-04 05:33:07 +02:00
|
|
|
spapr_tce_table_disable(tcet);
|
|
|
|
|
trace_spapr_iommu_ddw_remove(liobn);
|
|
|
|
|
|
2022-06-22 07:29:55 +02:00
|
|
|
/*
|
|
|
|
|
* PAPR+/LoPAPR says:
|
|
|
|
|
* The platform must restore the default DMA window for the PE on a call
|
|
|
|
|
* to the ibm,remove-pe-dma-window RTAS call when all of the following
|
|
|
|
|
* are true:
|
|
|
|
|
* a. The call removes the last DMA window remaining for the PE.
|
|
|
|
|
* b. The DMA window being removed is not the default window
|
|
|
|
|
*/
|
|
|
|
|
if (spapr_phb_get_active_win_num(sphb) == 0 && !def_win_removed) {
|
|
|
|
|
spapr_phb_dma_reset(sphb);
|
|
|
|
|
trace_spapr_iommu_ddw_reset(sphb->buid, 0);
|
|
|
|
|
}
|
|
|
|
|
|
2016-07-04 05:33:07 +02:00
|
|
|
rtas_st(rets, 0, RTAS_OUT_SUCCESS);
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
param_error_exit:
|
|
|
|
|
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void rtas_ibm_reset_pe_dma_window(PowerPCCPU *cpu,
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
SpaprMachineState *spapr,
|
2016-07-04 05:33:07 +02:00
|
|
|
uint32_t token, uint32_t nargs,
|
|
|
|
|
target_ulong args,
|
|
|
|
|
uint32_t nret, target_ulong rets)
|
|
|
|
|
{
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
SpaprPhbState *sphb;
|
2016-07-04 05:33:07 +02:00
|
|
|
uint64_t buid;
|
|
|
|
|
uint32_t addr;
|
|
|
|
|
|
|
|
|
|
if ((nargs != 3) || (nret != 1)) {
|
|
|
|
|
goto param_error_exit;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
buid = ((uint64_t)rtas_ld(args, 1) << 32) | rtas_ld(args, 2);
|
|
|
|
|
addr = rtas_ld(args, 0);
|
|
|
|
|
sphb = spapr_pci_find_phb(spapr, buid);
|
|
|
|
|
if (!sphb || !sphb->ddw_enabled) {
|
|
|
|
|
goto param_error_exit;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
spapr_phb_dma_reset(sphb);
|
|
|
|
|
trace_spapr_iommu_ddw_reset(buid, addr);
|
|
|
|
|
|
|
|
|
|
rtas_st(rets, 0, RTAS_OUT_SUCCESS);
|
|
|
|
|
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
param_error_exit:
|
|
|
|
|
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void spapr_rtas_ddw_init(void)
|
|
|
|
|
{
|
|
|
|
|
spapr_rtas_register(RTAS_IBM_QUERY_PE_DMA_WINDOW,
|
|
|
|
|
"ibm,query-pe-dma-window",
|
|
|
|
|
rtas_ibm_query_pe_dma_window);
|
|
|
|
|
spapr_rtas_register(RTAS_IBM_CREATE_PE_DMA_WINDOW,
|
|
|
|
|
"ibm,create-pe-dma-window",
|
|
|
|
|
rtas_ibm_create_pe_dma_window);
|
|
|
|
|
spapr_rtas_register(RTAS_IBM_REMOVE_PE_DMA_WINDOW,
|
|
|
|
|
"ibm,remove-pe-dma-window",
|
|
|
|
|
rtas_ibm_remove_pe_dma_window);
|
|
|
|
|
spapr_rtas_register(RTAS_IBM_RESET_PE_DMA_WINDOW,
|
|
|
|
|
"ibm,reset-pe-dma-window",
|
|
|
|
|
rtas_ibm_reset_pe_dma_window);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
type_init(spapr_rtas_ddw_init)
|