Re: [Qemu-devel] [RFC 4/9] acpi: replace opencoded opcodes with defines

2014-02-16 Thread Michael S. Tsirkin
On Fri, Feb 07, 2014 at 01:51:31PM +0100, Igor Mammedov wrote:
> Signed-off-by: Igor Mammedov 


The reason I avoided doing this is that this
conflicts with qemu coding style which
only uses camel case for types.

So as a minimum this needs a comment
explaining that we are using the names from
ACPI spec as-is, that's why we deviate from
the coding style, to simplify matching against
that.

Something like below:

> ---
>  hw/i386/acpi-build.c |   28 ++--
>  1 files changed, 18 insertions(+), 10 deletions(-)
> 
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index 6a43a7d..1dbe5ce 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -224,6 +224,14 @@ static void acpi_get_pci_info(PcPciInfo *info)
>  #define ACPI_BUILD_TABLE_FILE "etc/acpi/tables"
>  #define ACPI_BUILD_RSDP_FILE "etc/acpi/rsdp"


/* Constants from ACPI spec 5.0a:
 *  ACPI Machine Language (AML) Specification
 */

We probably should add in spec link as well.


> +#define BytePrefix 0x0A
> +#define WordPrefix 0x0B
> +#define DWordPrefix0x0C

Not sure about these ones.
There's a single user, and naming is different
from rest of operators which makes it
a bit confusing.
Maybe define near the user?

> +
> +#define NameOp 0x08
> +#define ScopeOp0x10
> +#define DeviceOp   0x82

Hmm if we are doing this let's do this for all Ops.

> +
>  static void
>  build_header(GArray *linker, GArray *table_data,
>   AcpiTableHeader *h, uint32_t sig, int len, uint8_t rev)
> @@ -364,13 +372,13 @@ static void build_append_value(GArray *table, uint32_t 
> value, int size)
>  
>  switch (size) {
>  case 1:
> -prefix = 0x0A; /* BytePrefix */
> +prefix = BytePrefix;
>  break;
>  case 2:
> -prefix = 0x0B; /* WordPrefix */
> +prefix = WordPrefix;
>  break;
>  case 4:
> -prefix = 0x0C; /* DWordPrefix */
> +prefix = DWordPrefix;
>  break;
>  default:
>  assert(0);
> @@ -762,24 +770,24 @@ static void build_pci_bus_end(PCIBus *bus, void 
> *bus_state)
>  bool bus_hotplug_support = false;
>  
>  if (bus->parent_dev) {
> -op = 0x82; /* DeviceOp */
> +op = DeviceOp;
>  build_append_nameseg(bus_table, "S%.02X_",
>   bus->parent_dev->devfn);
> -build_append_byte(bus_table, 0x08); /* NameOp */
> +build_append_byte(bus_table, NameOp);
>  build_append_nameseg(bus_table, "_SUN");
>  build_append_value(bus_table, PCI_SLOT(bus->parent_dev->devfn), 1);
> -build_append_byte(bus_table, 0x08); /* NameOp */
> +build_append_byte(bus_table, NameOp);
>  build_append_nameseg(bus_table, "_ADR");
>  build_append_value(bus_table, (PCI_SLOT(bus->parent_dev->devfn) << 
> 16) |
> PCI_FUNC(bus->parent_dev->devfn), 4);
>  } else {
> -op = 0x10; /* ScopeOp */;
> +op = ScopeOp;
>  build_append_nameseg(bus_table, "PCI0");
>  }
>  
>  bsel = object_property_get_qobject(OBJECT(bus), ACPI_PCIHP_PROP_BSEL, 
> NULL);
>  if (bsel) {
> -build_append_byte(bus_table, 0x08); /* NameOp */
> +build_append_byte(bus_table, NameOp);
>  build_append_nameseg(bus_table, "BSEL");
>  build_append_int(bus_table, qint_get_int(qobject_to_qint(bsel)));
>  }
> @@ -962,7 +970,7 @@ build_ssdt(GArray *table_data, GArray *linker,
>  
>  {
>  GArray *sb_scope = build_alloc_array();
> -uint8_t op = 0x10; /* ScopeOp */
> +uint8_t op = ScopeOp;
>  
>  build_append_nameseg(sb_scope, "_SB_");
>  
> @@ -983,7 +991,7 @@ build_ssdt(GArray *table_data, GArray *linker,
>  build_append_notify_method(sb_scope, "NTFY", "CP%0.02X", acpi_cpus);
>  
>  /* build "Name(CPON, Package() { One, One, ..., Zero, Zero, ... })" 
> */
> -build_append_byte(sb_scope, 0x08); /* NameOp */
> +build_append_byte(sb_scope, NameOp);
>  build_append_nameseg(sb_scope, "CPON");
>  
>  {
> -- 
> 1.7.1



[Qemu-devel] [RFC 4/9] acpi: replace opencoded opcodes with defines

2014-02-07 Thread Igor Mammedov
Signed-off-by: Igor Mammedov 
---
 hw/i386/acpi-build.c |   28 ++--
 1 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 6a43a7d..1dbe5ce 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -224,6 +224,14 @@ static void acpi_get_pci_info(PcPciInfo *info)
 #define ACPI_BUILD_TABLE_FILE "etc/acpi/tables"
 #define ACPI_BUILD_RSDP_FILE "etc/acpi/rsdp"
 
+#define BytePrefix 0x0A
+#define WordPrefix 0x0B
+#define DWordPrefix0x0C
+
+#define NameOp 0x08
+#define ScopeOp0x10
+#define DeviceOp   0x82
+
 static void
 build_header(GArray *linker, GArray *table_data,
  AcpiTableHeader *h, uint32_t sig, int len, uint8_t rev)
@@ -364,13 +372,13 @@ static void build_append_value(GArray *table, uint32_t 
value, int size)
 
 switch (size) {
 case 1:
-prefix = 0x0A; /* BytePrefix */
+prefix = BytePrefix;
 break;
 case 2:
-prefix = 0x0B; /* WordPrefix */
+prefix = WordPrefix;
 break;
 case 4:
-prefix = 0x0C; /* DWordPrefix */
+prefix = DWordPrefix;
 break;
 default:
 assert(0);
@@ -762,24 +770,24 @@ static void build_pci_bus_end(PCIBus *bus, void 
*bus_state)
 bool bus_hotplug_support = false;
 
 if (bus->parent_dev) {
-op = 0x82; /* DeviceOp */
+op = DeviceOp;
 build_append_nameseg(bus_table, "S%.02X_",
  bus->parent_dev->devfn);
-build_append_byte(bus_table, 0x08); /* NameOp */
+build_append_byte(bus_table, NameOp);
 build_append_nameseg(bus_table, "_SUN");
 build_append_value(bus_table, PCI_SLOT(bus->parent_dev->devfn), 1);
-build_append_byte(bus_table, 0x08); /* NameOp */
+build_append_byte(bus_table, NameOp);
 build_append_nameseg(bus_table, "_ADR");
 build_append_value(bus_table, (PCI_SLOT(bus->parent_dev->devfn) << 16) 
|
PCI_FUNC(bus->parent_dev->devfn), 4);
 } else {
-op = 0x10; /* ScopeOp */;
+op = ScopeOp;
 build_append_nameseg(bus_table, "PCI0");
 }
 
 bsel = object_property_get_qobject(OBJECT(bus), ACPI_PCIHP_PROP_BSEL, 
NULL);
 if (bsel) {
-build_append_byte(bus_table, 0x08); /* NameOp */
+build_append_byte(bus_table, NameOp);
 build_append_nameseg(bus_table, "BSEL");
 build_append_int(bus_table, qint_get_int(qobject_to_qint(bsel)));
 }
@@ -962,7 +970,7 @@ build_ssdt(GArray *table_data, GArray *linker,
 
 {
 GArray *sb_scope = build_alloc_array();
-uint8_t op = 0x10; /* ScopeOp */
+uint8_t op = ScopeOp;
 
 build_append_nameseg(sb_scope, "_SB_");
 
@@ -983,7 +991,7 @@ build_ssdt(GArray *table_data, GArray *linker,
 build_append_notify_method(sb_scope, "NTFY", "CP%0.02X", acpi_cpus);
 
 /* build "Name(CPON, Package() { One, One, ..., Zero, Zero, ... })" */
-build_append_byte(sb_scope, 0x08); /* NameOp */
+build_append_byte(sb_scope, NameOp);
 build_append_nameseg(sb_scope, "CPON");
 
 {
-- 
1.7.1