diff mbox series

[RFC,12/25] acpi/pci: Consolidate host bridge setup

Message ID 20201111054724.794888-13-ben.widawsky@intel.com (mailing list archive)
State New, archived
Headers show
Series Introduce CXL 2.0 Emulation | expand

Commit Message

Ben Widawsky Nov. 11, 2020, 5:47 a.m. UTC 
This cleanup will make it easier to add support for CXL to the mix.

Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
---
 hw/i386/acpi-build.c | 31 +++++++++++++++++--------------
 1 file changed, 17 insertions(+), 14 deletions(-)

Comments

Ben Widawsky Nov. 12, 2020, 5:46 p.m. UTC | #1 
On 20-11-10 21:47:11, Ben Widawsky wrote:
> This cleanup will make it easier to add support for CXL to the mix.

This patch needs bios table updates for qtest... I am fixing it...

> 
> Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
> ---
>  hw/i386/acpi-build.c | 31 +++++++++++++++++--------------
>  1 file changed, 17 insertions(+), 14 deletions(-)
> 
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index 4f66642d88..99b3088c9e 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -1486,6 +1486,20 @@ static void build_smb0(Aml *table, I2CBus *smbus, int devnr, int func)
>      aml_append(table, scope);
>  }
>  
> +enum { PCI, PCIE };
> +static void init_pci_acpi(Aml *dev, int uid, int type)
> +{
> +    if (type == PCI) {
> +        aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
> +        aml_append(dev, aml_name_decl("_UID", aml_int(uid)));
> +    } else {
> +        aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
> +        aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
> +        aml_append(dev, aml_name_decl("_UID", aml_int(uid)));
> +        aml_append(dev, build_q35_osc_method());
> +    }
> +}
> +
>  static void
>  build_dsdt(GArray *table_data, BIOSLinker *linker,
>             AcpiPmInfo *pm, AcpiMiscInfo *misc,
> @@ -1514,9 +1528,8 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
>      if (misc->is_piix4) {
>          sb_scope = aml_scope("_SB");
>          dev = aml_device("PCI0");
> -        aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
> +        init_pci_acpi(dev, 0, PCI);
>          aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
> -        aml_append(dev, aml_name_decl("_UID", aml_int(0)));
>          aml_append(sb_scope, dev);
>          aml_append(dsdt, sb_scope);
>  
> @@ -1530,11 +1543,8 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
>      } else {
>          sb_scope = aml_scope("_SB");
>          dev = aml_device("PCI0");
> -        aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
> -        aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
> +        init_pci_acpi(dev, 0, PCIE);
>          aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
> -        aml_append(dev, aml_name_decl("_UID", aml_int(0)));
> -        aml_append(dev, build_q35_osc_method());
>          aml_append(sb_scope, dev);
>  
>          if (pm->smi_on_cpuhp) {
> @@ -1636,15 +1646,8 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
>  
>              scope = aml_scope("\\_SB");
>              dev = aml_device("PC%.02X", bus_num);
> -            aml_append(dev, aml_name_decl("_UID", aml_int(bus_num)));
>              aml_append(dev, aml_name_decl("_BBN", aml_int(bus_num)));
> -            if (pci_bus_is_express(bus)) {
> -                aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
> -                aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
> -                aml_append(dev, build_q35_osc_method());
> -            } else {
> -                aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
> -            }
> +            init_pci_acpi(dev, bus_num, pci_bus_is_express(bus) ? PCIE : PCI);
>  
>              if (numa_node != NUMA_NODE_UNASSIGNED) {
>                  aml_append(dev, aml_name_decl("_PXM", aml_int(numa_node)));
> -- 
> 2.29.2
> 
>
Jonathan Cameron Nov. 16, 2020, 4:45 p.m. UTC | #2 
On Tue, 10 Nov 2020 21:47:11 -0800
Ben Widawsky <ben.widawsky@intel.com> wrote:

> This cleanup will make it easier to add support for CXL to the mix.
> 
> Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>

Nice looking change.  Minor comment inline.

> ---
>  hw/i386/acpi-build.c | 31 +++++++++++++++++--------------
>  1 file changed, 17 insertions(+), 14 deletions(-)
> 
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index 4f66642d88..99b3088c9e 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -1486,6 +1486,20 @@ static void build_smb0(Aml *table, I2CBus *smbus, int devnr, int func)
>      aml_append(table, scope);
>  }
>  
> +enum { PCI, PCIE };
> +static void init_pci_acpi(Aml *dev, int uid, int type)
> +{
> +    if (type == PCI) {

switch?

> +        aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
> +        aml_append(dev, aml_name_decl("_UID", aml_int(uid)));
> +    } else {
> +        aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
> +        aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
> +        aml_append(dev, aml_name_decl("_UID", aml_int(uid)));
> +        aml_append(dev, build_q35_osc_method());
> +    }
> +}
> +
>  static void
>  build_dsdt(GArray *table_data, BIOSLinker *linker,
>             AcpiPmInfo *pm, AcpiMiscInfo *misc,
> @@ -1514,9 +1528,8 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
>      if (misc->is_piix4) {
>          sb_scope = aml_scope("_SB");
>          dev = aml_device("PCI0");
> -        aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
> +        init_pci_acpi(dev, 0, PCI);
>          aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
> -        aml_append(dev, aml_name_decl("_UID", aml_int(0)));
>          aml_append(sb_scope, dev);
>          aml_append(dsdt, sb_scope);
>  
> @@ -1530,11 +1543,8 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
>      } else {
>          sb_scope = aml_scope("_SB");
>          dev = aml_device("PCI0");
> -        aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
> -        aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
> +        init_pci_acpi(dev, 0, PCIE);
>          aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
> -        aml_append(dev, aml_name_decl("_UID", aml_int(0)));
> -        aml_append(dev, build_q35_osc_method());
>          aml_append(sb_scope, dev);
>  
>          if (pm->smi_on_cpuhp) {
> @@ -1636,15 +1646,8 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
>  
>              scope = aml_scope("\\_SB");
>              dev = aml_device("PC%.02X", bus_num);
> -            aml_append(dev, aml_name_decl("_UID", aml_int(bus_num)));
>              aml_append(dev, aml_name_decl("_BBN", aml_int(bus_num)));
> -            if (pci_bus_is_express(bus)) {
> -                aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
> -                aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
> -                aml_append(dev, build_q35_osc_method());
> -            } else {
> -                aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
> -            }
> +            init_pci_acpi(dev, bus_num, pci_bus_is_express(bus) ? PCIE : PCI);
>  
>              if (numa_node != NUMA_NODE_UNASSIGNED) {
>                  aml_append(dev, aml_name_decl("_PXM", aml_int(numa_node)));
diff mbox series

Patch

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 4f66642d88..99b3088c9e 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1486,6 +1486,20 @@  static void build_smb0(Aml *table, I2CBus *smbus, int devnr, int func)
     aml_append(table, scope);
 }
 
+enum { PCI, PCIE };
+static void init_pci_acpi(Aml *dev, int uid, int type)
+{
+    if (type == PCI) {
+        aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
+        aml_append(dev, aml_name_decl("_UID", aml_int(uid)));
+    } else {
+        aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
+        aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
+        aml_append(dev, aml_name_decl("_UID", aml_int(uid)));
+        aml_append(dev, build_q35_osc_method());
+    }
+}
+
 static void
 build_dsdt(GArray *table_data, BIOSLinker *linker,
            AcpiPmInfo *pm, AcpiMiscInfo *misc,
@@ -1514,9 +1528,8 @@  build_dsdt(GArray *table_data, BIOSLinker *linker,
     if (misc->is_piix4) {
         sb_scope = aml_scope("_SB");
         dev = aml_device("PCI0");
-        aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
+        init_pci_acpi(dev, 0, PCI);
         aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
-        aml_append(dev, aml_name_decl("_UID", aml_int(0)));
         aml_append(sb_scope, dev);
         aml_append(dsdt, sb_scope);
 
@@ -1530,11 +1543,8 @@  build_dsdt(GArray *table_data, BIOSLinker *linker,
     } else {
         sb_scope = aml_scope("_SB");
         dev = aml_device("PCI0");
-        aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
-        aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
+        init_pci_acpi(dev, 0, PCIE);
         aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
-        aml_append(dev, aml_name_decl("_UID", aml_int(0)));
-        aml_append(dev, build_q35_osc_method());
         aml_append(sb_scope, dev);
 
         if (pm->smi_on_cpuhp) {
@@ -1636,15 +1646,8 @@  build_dsdt(GArray *table_data, BIOSLinker *linker,
 
             scope = aml_scope("\\_SB");
             dev = aml_device("PC%.02X", bus_num);
-            aml_append(dev, aml_name_decl("_UID", aml_int(bus_num)));
             aml_append(dev, aml_name_decl("_BBN", aml_int(bus_num)));
-            if (pci_bus_is_express(bus)) {
-                aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
-                aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
-                aml_append(dev, build_q35_osc_method());
-            } else {
-                aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
-            }
+            init_pci_acpi(dev, bus_num, pci_bus_is_express(bus) ? PCIE : PCI);
 
             if (numa_node != NUMA_NODE_UNASSIGNED) {
                 aml_append(dev, aml_name_decl("_PXM", aml_int(numa_node)));