diff mbox series

[v5,10/24] hw: acpi: Export the PCI host and holes getters

Message ID 20181105014047.26447-11-sameo@linux.intel.com
State New
Headers show
Series ACPI reorganization for hardware-reduced API addition | expand

Commit Message

Samuel Ortiz Nov. 5, 2018, 1:40 a.m. UTC
This is going to be needed by the hardware reduced implementation, so
let's export it.
Once the ACPI builder methods and getters will be implemented, the
acpi_get_pci_host() implementation will become hardware agnostic.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 include/hw/acpi/aml-build.h |  2 ++
 hw/acpi/aml-build.c         | 43 +++++++++++++++++++++++++++++++++
 hw/i386/acpi-build.c        | 47 ++-----------------------------------
 3 files changed, 47 insertions(+), 45 deletions(-)

Comments

Igor Mammedov Nov. 13, 2018, 3:59 p.m. UTC | #1
On Mon,  5 Nov 2018 02:40:33 +0100
Samuel Ortiz <sameo@linux.intel.com> wrote:

> This is going to be needed by the hardware reduced implementation, so
> let's export it.
> Once the ACPI builder methods and getters will be implemented, the
> acpi_get_pci_host() implementation will become hardware agnostic.
> 
> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
> ---
>  include/hw/acpi/aml-build.h |  2 ++
>  hw/acpi/aml-build.c         | 43 +++++++++++++++++++++++++++++++++
>  hw/i386/acpi-build.c        | 47 ++-----------------------------------
>  3 files changed, 47 insertions(+), 45 deletions(-)
> 
> diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
> index c27c0935ae..fde2785b9a 100644
> --- a/include/hw/acpi/aml-build.h
> +++ b/include/hw/acpi/aml-build.h
> @@ -400,6 +400,8 @@ build_header(BIOSLinker *linker, GArray *table_data,
>               const char *oem_id, const char *oem_table_id);
>  void *acpi_data_push(GArray *table_data, unsigned size);
>  unsigned acpi_data_len(GArray *table);
> +Object *acpi_get_pci_host(void);
> +void acpi_get_pci_holes(Range *hole, Range *hole64);
>  /* Align AML blob size to a multiple of 'align' */
>  void acpi_align_size(GArray *blob, unsigned align);
>  void acpi_add_table(GArray *table_offsets, GArray *table_data);
> diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
> index 2b9a636e75..b8e32f15f7 100644
> --- a/hw/acpi/aml-build.c
> +++ b/hw/acpi/aml-build.c
> @@ -1601,6 +1601,49 @@ void acpi_build_tables_cleanup(AcpiBuildTables *tables, bool mfre)
>      g_array_free(tables->vmgenid, mfre);
>  }

> +/*
> + * Because of the PXB hosts we cannot simply query TYPE_PCI_HOST_BRIDGE.
> + */
> +Object *acpi_get_pci_host(void)
> +{
> +    PCIHostState *host;
> +
> +    host = OBJECT_CHECK(PCIHostState,
> +                        object_resolve_path("/machine/i440fx", NULL),
> +                        TYPE_PCI_HOST_BRIDGE);
> +    if (!host) {
> +        host = OBJECT_CHECK(PCIHostState,
> +                            object_resolve_path("/machine/q35", NULL),
> +                            TYPE_PCI_HOST_BRIDGE);
> +    }
> +
> +    return OBJECT(host);
> +}
in general aml-build.c is a place to put ACPI spec primitives,
so I'd suggest to move it somewhere else.

Considering it's x86 code (so far), maybe move it to something like
hw/i386/acpi-pci.c

Also it might be good to get rid of acpi_get_pci_host() and pass
a pointer to pci_host as acpi_setup() an argument, since it's static
for life of boar we can keep it in AcpiBuildState, and reuse for
mfg/pci_hole/pci bus accesses.
That way we can simplify code a bit and avoid lookup cost of
object_resolve_path() that's called several times unnecessarily.

> +void acpi_get_pci_holes(Range *hole, Range *hole64)
> +{
> +    Object *pci_host;
> +
> +    pci_host = acpi_get_pci_host();
> +    g_assert(pci_host);
> +
> +    range_set_bounds1(hole,
> +                      object_property_get_uint(pci_host,
> +                                               PCI_HOST_PROP_PCI_HOLE_START,
> +                                               NULL),
> +                      object_property_get_uint(pci_host,
> +                                               PCI_HOST_PROP_PCI_HOLE_END,
> +                                               NULL));
> +    range_set_bounds1(hole64,
> +                      object_property_get_uint(pci_host,
> +                                               PCI_HOST_PROP_PCI_HOLE64_START,
> +                                               NULL),
> +                      object_property_get_uint(pci_host,
> +                                               PCI_HOST_PROP_PCI_HOLE64_END,
> +                                               NULL));
> +}
> +
>  static void crs_range_insert(GPtrArray *ranges, uint64_t base, uint64_t limit)
>  {
>      CrsRangeEntry *entry;
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index bd147a6bd2..a5f5f83500 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -232,49 +232,6 @@ static void acpi_get_misc_info(AcpiMiscInfo *info)
>      info->applesmc_io_base = applesmc_port();
>  }
>  
> -/*
> - * Because of the PXB hosts we cannot simply query TYPE_PCI_HOST_BRIDGE.
> - * On i386 arch we only have two pci hosts, so we can look only for them.
> - */
> -static Object *acpi_get_i386_pci_host(void)
> -{
> -    PCIHostState *host;
> -
> -    host = OBJECT_CHECK(PCIHostState,
> -                        object_resolve_path("/machine/i440fx", NULL),
> -                        TYPE_PCI_HOST_BRIDGE);
> -    if (!host) {
> -        host = OBJECT_CHECK(PCIHostState,
> -                            object_resolve_path("/machine/q35", NULL),
> -                            TYPE_PCI_HOST_BRIDGE);
> -    }
> -
> -    return OBJECT(host);
> -}
> -
> -static void acpi_get_pci_holes(Range *hole, Range *hole64)
> -{
> -    Object *pci_host;
> -
> -    pci_host = acpi_get_i386_pci_host();
> -    g_assert(pci_host);
> -
> -    range_set_bounds1(hole,
> -                      object_property_get_uint(pci_host,
> -                                               PCI_HOST_PROP_PCI_HOLE_START,
> -                                               NULL),
> -                      object_property_get_uint(pci_host,
> -                                               PCI_HOST_PROP_PCI_HOLE_END,
> -                                               NULL));
> -    range_set_bounds1(hole64,
> -                      object_property_get_uint(pci_host,
> -                                               PCI_HOST_PROP_PCI_HOLE64_START,
> -                                               NULL),
> -                      object_property_get_uint(pci_host,
> -                                               PCI_HOST_PROP_PCI_HOLE64_END,
> -                                               NULL));
> -}
> -
>  /* FACS */
>  static void
>  build_facs(GArray *table_data, BIOSLinker *linker)
> @@ -1634,7 +1591,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
>          Object *pci_host;
>          PCIBus *bus = NULL;
>  
> -        pci_host = acpi_get_i386_pci_host();
> +        pci_host = acpi_get_pci_host();
>          if (pci_host) {
>              bus = PCI_HOST_BRIDGE(pci_host)->bus;
>          }
> @@ -2008,7 +1965,7 @@ static bool acpi_get_mcfg(AcpiMcfgInfo *mcfg)
>      Object *pci_host;
>      QObject *o;
>  
> -    pci_host = acpi_get_i386_pci_host();
> +    pci_host = acpi_get_pci_host();
>      g_assert(pci_host);
>  
>      o = object_property_get_qobject(pci_host, PCIE_HOST_MCFG_BASE, NULL);
Samuel Ortiz Nov. 21, 2018, 3:43 p.m. UTC | #2
On Tue, Nov 13, 2018 at 04:59:18PM +0100, Igor Mammedov wrote:
> On Mon,  5 Nov 2018 02:40:33 +0100
> Samuel Ortiz <sameo@linux.intel.com> wrote:
> 
> > This is going to be needed by the hardware reduced implementation, so
> > let's export it.
> > Once the ACPI builder methods and getters will be implemented, the
> > acpi_get_pci_host() implementation will become hardware agnostic.
> > 
> > Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
> > ---
> >  include/hw/acpi/aml-build.h |  2 ++
> >  hw/acpi/aml-build.c         | 43 +++++++++++++++++++++++++++++++++
> >  hw/i386/acpi-build.c        | 47 ++-----------------------------------
> >  3 files changed, 47 insertions(+), 45 deletions(-)
> > 
> > diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
> > index c27c0935ae..fde2785b9a 100644
> > --- a/include/hw/acpi/aml-build.h
> > +++ b/include/hw/acpi/aml-build.h
> > @@ -400,6 +400,8 @@ build_header(BIOSLinker *linker, GArray *table_data,
> >               const char *oem_id, const char *oem_table_id);
> >  void *acpi_data_push(GArray *table_data, unsigned size);
> >  unsigned acpi_data_len(GArray *table);
> > +Object *acpi_get_pci_host(void);
> > +void acpi_get_pci_holes(Range *hole, Range *hole64);
> >  /* Align AML blob size to a multiple of 'align' */
> >  void acpi_align_size(GArray *blob, unsigned align);
> >  void acpi_add_table(GArray *table_offsets, GArray *table_data);
> > diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
> > index 2b9a636e75..b8e32f15f7 100644
> > --- a/hw/acpi/aml-build.c
> > +++ b/hw/acpi/aml-build.c
> > @@ -1601,6 +1601,49 @@ void acpi_build_tables_cleanup(AcpiBuildTables *tables, bool mfre)
> >      g_array_free(tables->vmgenid, mfre);
> >  }
> 
> > +/*
> > + * Because of the PXB hosts we cannot simply query TYPE_PCI_HOST_BRIDGE.
> > + */
> > +Object *acpi_get_pci_host(void)
> > +{
> > +    PCIHostState *host;
> > +
> > +    host = OBJECT_CHECK(PCIHostState,
> > +                        object_resolve_path("/machine/i440fx", NULL),
> > +                        TYPE_PCI_HOST_BRIDGE);
> > +    if (!host) {
> > +        host = OBJECT_CHECK(PCIHostState,
> > +                            object_resolve_path("/machine/q35", NULL),
> > +                            TYPE_PCI_HOST_BRIDGE);
> > +    }
> > +
> > +    return OBJECT(host);
> > +}
> in general aml-build.c is a place to put ACPI spec primitives,
> so I'd suggest to move it somewhere else.
> 
> Considering it's x86 code (so far), maybe move it to something like
> hw/i386/acpi-pci.c
> 
> Also it might be good to get rid of acpi_get_pci_host() and pass
> a pointer to pci_host as acpi_setup() an argument, since it's static
> for life of boar we can keep it in AcpiBuildState, and reuse for
> mfg/pci_hole/pci bus accesses.
That's what I'm trying to do with patches #23 and 24, but through the
ACPI configuration structure. I could try using the build state instead,
as it's platform agnostic as well.

Cheers,
Samuel.
Igor Mammedov Nov. 23, 2018, 10:55 a.m. UTC | #3
On Wed, 21 Nov 2018 16:43:12 +0100
Samuel Ortiz <sameo@linux.intel.com> wrote:

> On Tue, Nov 13, 2018 at 04:59:18PM +0100, Igor Mammedov wrote:
> > On Mon,  5 Nov 2018 02:40:33 +0100
> > Samuel Ortiz <sameo@linux.intel.com> wrote:
> >   
> > > This is going to be needed by the hardware reduced implementation, so
> > > let's export it.
> > > Once the ACPI builder methods and getters will be implemented, the
> > > acpi_get_pci_host() implementation will become hardware agnostic.
> > > 
> > > Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
> > > ---
> > >  include/hw/acpi/aml-build.h |  2 ++
> > >  hw/acpi/aml-build.c         | 43 +++++++++++++++++++++++++++++++++
> > >  hw/i386/acpi-build.c        | 47 ++-----------------------------------
> > >  3 files changed, 47 insertions(+), 45 deletions(-)
> > > 
> > > diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
> > > index c27c0935ae..fde2785b9a 100644
> > > --- a/include/hw/acpi/aml-build.h
> > > +++ b/include/hw/acpi/aml-build.h
> > > @@ -400,6 +400,8 @@ build_header(BIOSLinker *linker, GArray *table_data,
> > >               const char *oem_id, const char *oem_table_id);
> > >  void *acpi_data_push(GArray *table_data, unsigned size);
> > >  unsigned acpi_data_len(GArray *table);
> > > +Object *acpi_get_pci_host(void);
> > > +void acpi_get_pci_holes(Range *hole, Range *hole64);
> > >  /* Align AML blob size to a multiple of 'align' */
> > >  void acpi_align_size(GArray *blob, unsigned align);
> > >  void acpi_add_table(GArray *table_offsets, GArray *table_data);
> > > diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
> > > index 2b9a636e75..b8e32f15f7 100644
> > > --- a/hw/acpi/aml-build.c
> > > +++ b/hw/acpi/aml-build.c
> > > @@ -1601,6 +1601,49 @@ void acpi_build_tables_cleanup(AcpiBuildTables *tables, bool mfre)
> > >      g_array_free(tables->vmgenid, mfre);
> > >  }  
> >   
> > > +/*
> > > + * Because of the PXB hosts we cannot simply query TYPE_PCI_HOST_BRIDGE.
> > > + */
> > > +Object *acpi_get_pci_host(void)
> > > +{
> > > +    PCIHostState *host;
> > > +
> > > +    host = OBJECT_CHECK(PCIHostState,
> > > +                        object_resolve_path("/machine/i440fx", NULL),
> > > +                        TYPE_PCI_HOST_BRIDGE);
> > > +    if (!host) {
> > > +        host = OBJECT_CHECK(PCIHostState,
> > > +                            object_resolve_path("/machine/q35", NULL),
> > > +                            TYPE_PCI_HOST_BRIDGE);
> > > +    }
> > > +
> > > +    return OBJECT(host);
> > > +}  
> > in general aml-build.c is a place to put ACPI spec primitives,
> > so I'd suggest to move it somewhere else.
> > 
> > Considering it's x86 code (so far), maybe move it to something like
> > hw/i386/acpi-pci.c
> > 
> > Also it might be good to get rid of acpi_get_pci_host() and pass
> > a pointer to pci_host as acpi_setup() an argument, since it's static
> > for life of boar we can keep it in AcpiBuildState, and reuse for
> > mfg/pci_hole/pci bus accesses.  
> That's what I'm trying to do with patches #23 and 24, but through the
> ACPI configuration structure. I could try using the build state instead,
> as it's platform agnostic as well.
May be it will work.
Note:
try not to pass whole build_state to concrete tables builders and use
arguments/dedicated structures to pass data needed for that concrete
table.

> 
> Cheers,
> Samuel.
>
diff mbox series

Patch

diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index c27c0935ae..fde2785b9a 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -400,6 +400,8 @@  build_header(BIOSLinker *linker, GArray *table_data,
              const char *oem_id, const char *oem_table_id);
 void *acpi_data_push(GArray *table_data, unsigned size);
 unsigned acpi_data_len(GArray *table);
+Object *acpi_get_pci_host(void);
+void acpi_get_pci_holes(Range *hole, Range *hole64);
 /* Align AML blob size to a multiple of 'align' */
 void acpi_align_size(GArray *blob, unsigned align);
 void acpi_add_table(GArray *table_offsets, GArray *table_data);
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 2b9a636e75..b8e32f15f7 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -1601,6 +1601,49 @@  void acpi_build_tables_cleanup(AcpiBuildTables *tables, bool mfre)
     g_array_free(tables->vmgenid, mfre);
 }
 
+/*
+ * Because of the PXB hosts we cannot simply query TYPE_PCI_HOST_BRIDGE.
+ */
+Object *acpi_get_pci_host(void)
+{
+    PCIHostState *host;
+
+    host = OBJECT_CHECK(PCIHostState,
+                        object_resolve_path("/machine/i440fx", NULL),
+                        TYPE_PCI_HOST_BRIDGE);
+    if (!host) {
+        host = OBJECT_CHECK(PCIHostState,
+                            object_resolve_path("/machine/q35", NULL),
+                            TYPE_PCI_HOST_BRIDGE);
+    }
+
+    return OBJECT(host);
+}
+
+
+void acpi_get_pci_holes(Range *hole, Range *hole64)
+{
+    Object *pci_host;
+
+    pci_host = acpi_get_pci_host();
+    g_assert(pci_host);
+
+    range_set_bounds1(hole,
+                      object_property_get_uint(pci_host,
+                                               PCI_HOST_PROP_PCI_HOLE_START,
+                                               NULL),
+                      object_property_get_uint(pci_host,
+                                               PCI_HOST_PROP_PCI_HOLE_END,
+                                               NULL));
+    range_set_bounds1(hole64,
+                      object_property_get_uint(pci_host,
+                                               PCI_HOST_PROP_PCI_HOLE64_START,
+                                               NULL),
+                      object_property_get_uint(pci_host,
+                                               PCI_HOST_PROP_PCI_HOLE64_END,
+                                               NULL));
+}
+
 static void crs_range_insert(GPtrArray *ranges, uint64_t base, uint64_t limit)
 {
     CrsRangeEntry *entry;
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index bd147a6bd2..a5f5f83500 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -232,49 +232,6 @@  static void acpi_get_misc_info(AcpiMiscInfo *info)
     info->applesmc_io_base = applesmc_port();
 }
 
-/*
- * Because of the PXB hosts we cannot simply query TYPE_PCI_HOST_BRIDGE.
- * On i386 arch we only have two pci hosts, so we can look only for them.
- */
-static Object *acpi_get_i386_pci_host(void)
-{
-    PCIHostState *host;
-
-    host = OBJECT_CHECK(PCIHostState,
-                        object_resolve_path("/machine/i440fx", NULL),
-                        TYPE_PCI_HOST_BRIDGE);
-    if (!host) {
-        host = OBJECT_CHECK(PCIHostState,
-                            object_resolve_path("/machine/q35", NULL),
-                            TYPE_PCI_HOST_BRIDGE);
-    }
-
-    return OBJECT(host);
-}
-
-static void acpi_get_pci_holes(Range *hole, Range *hole64)
-{
-    Object *pci_host;
-
-    pci_host = acpi_get_i386_pci_host();
-    g_assert(pci_host);
-
-    range_set_bounds1(hole,
-                      object_property_get_uint(pci_host,
-                                               PCI_HOST_PROP_PCI_HOLE_START,
-                                               NULL),
-                      object_property_get_uint(pci_host,
-                                               PCI_HOST_PROP_PCI_HOLE_END,
-                                               NULL));
-    range_set_bounds1(hole64,
-                      object_property_get_uint(pci_host,
-                                               PCI_HOST_PROP_PCI_HOLE64_START,
-                                               NULL),
-                      object_property_get_uint(pci_host,
-                                               PCI_HOST_PROP_PCI_HOLE64_END,
-                                               NULL));
-}
-
 /* FACS */
 static void
 build_facs(GArray *table_data, BIOSLinker *linker)
@@ -1634,7 +1591,7 @@  build_dsdt(GArray *table_data, BIOSLinker *linker,
         Object *pci_host;
         PCIBus *bus = NULL;
 
-        pci_host = acpi_get_i386_pci_host();
+        pci_host = acpi_get_pci_host();
         if (pci_host) {
             bus = PCI_HOST_BRIDGE(pci_host)->bus;
         }
@@ -2008,7 +1965,7 @@  static bool acpi_get_mcfg(AcpiMcfgInfo *mcfg)
     Object *pci_host;
     QObject *o;
 
-    pci_host = acpi_get_i386_pci_host();
+    pci_host = acpi_get_pci_host();
     g_assert(pci_host);
 
     o = object_property_get_qobject(pci_host, PCIE_HOST_MCFG_BASE, NULL);