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Re: [Qemu-devel] [PATCH v3 04/52] acpi: factor out ACPI const int packin
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCH v3 04/52] acpi: factor out ACPI const int packing out of build_append_value() |
Date: |
Tue, 17 Feb 2015 20:53:52 +0100 |
On Mon, Feb 09, 2015 at 10:53:26AM +0000, Igor Mammedov wrote:
> it will be reused for adding a plain integer value into AML.
>
> Signed-off-by: Igor Mammedov <address@hidden>
> ---
> hw/acpi/aml-build.c | 19 +++----------------
> hw/i386/acpi-build.c | 6 +++---
> 2 files changed, 6 insertions(+), 19 deletions(-)
>
> diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
> index 096f347..67d1371 100644
> --- a/hw/acpi/aml-build.c
> +++ b/hw/acpi/aml-build.c
> @@ -221,24 +221,8 @@ void build_extop_package(GArray *package, uint8_t op)
>
> void build_append_value(GArray *table, uint32_t value, int size)
> {
> - uint8_t prefix;
> int i;
>
> - switch (size) {
> - case 1:
> - prefix = 0x0A; /* BytePrefix */
> - break;
> - case 2:
> - prefix = 0x0B; /* WordPrefix */
> - break;
> - case 4:
> - prefix = 0x0C; /* DWordPrefix */
> - break;
> - default:
> - assert(0);
> - return;
> - }
> - build_append_byte(table, prefix);
> for (i = 0; i < size; ++i) {
> build_append_byte(table, value & 0xFF);
> value = value >> 8;
This really makes this an awkward API,
you must remember to add the prefix.
IMO you want a new name - build_append_value_noprefix maybe -
then call build_append_value_noprefix from build_append_value.
But really, it's best to squash such changes with
where they are used, it's just making review harder:
as you add APIs with no documentation, I can't
see what they do without reading follow up patch
to see how they are used.
> @@ -252,10 +236,13 @@ void build_append_int(GArray *table, uint32_t value)
> } else if (value == 0x01) {
> build_append_byte(table, 0x01); /* OneOp */
> } else if (value <= 0xFF) {
> + build_append_byte(table, 0x0A); /* BytePrefix */
> build_append_value(table, value, 1);
> } else if (value <= 0xFFFF) {
> + build_append_byte(table, 0x0B); /* WordPrefix */
> build_append_value(table, value, 2);
> } else {
> + build_append_byte(table, 0x0C); /* DWordPrefix */
> build_append_value(table, value, 4);
> }
> }
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index 788962e..a1bf450 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -302,14 +302,14 @@ static void build_append_and_cleanup_method(GArray
> *device, GArray *method)
>
> static void build_append_notify_target_ifequal(GArray *method,
> GArray *target_name,
> - uint32_t value, int size)
> + uint32_t value)
> {
> GArray *notify = build_alloc_array();
> uint8_t op = 0xA0; /* IfOp */
>
> build_append_byte(notify, 0x93); /* LEqualOp */
> build_append_byte(notify, 0x68); /* Arg0Op */
> - build_append_value(notify, value, size);
> + build_append_int(notify, value);
> build_append_byte(notify, 0x86); /* NotifyOp */
> build_append_array(notify, target_name);
> build_append_byte(notify, 0x69); /* Arg1Op */
> @@ -578,7 +578,7 @@ build_append_notify_method(GArray *device, const char
> *name,
> GArray *target = build_alloc_array();
> build_append_namestring(target, format, i);
> assert(i < 256); /* Fits in 1 byte */
> - build_append_notify_target_ifequal(method, target, i, 1);
> + build_append_notify_target_ifequal(method, target, i);
> build_free_array(target);
> }
>
> --
> 1.8.3.1
- [Qemu-devel] [PATCH v3 05/52] acpi: add aml_def_block() term, (continued)
[Qemu-devel] [PATCH v3 04/52] acpi: factor out ACPI const int packing out of build_append_value(), Igor Mammedov, 2015/02/09
- Re: [Qemu-devel] [PATCH v3 04/52] acpi: factor out ACPI const int packing out of build_append_value(),
Michael S. Tsirkin <=
[Qemu-devel] [PATCH v3 11/52] acpi: add aml_if() term, Igor Mammedov, 2015/02/09
[Qemu-devel] [PATCH v3 16/52] acpi: add aml_arg() term, Igor Mammedov, 2015/02/09
[Qemu-devel] [PATCH v3 13/52] acpi: extend build_append_{value|int}() to support 64-bit values, Igor Mammedov, 2015/02/09
[Qemu-devel] [PATCH v3 12/52] acpi: add aml_name() & aml_name_decl() term, Igor Mammedov, 2015/02/09
[Qemu-devel] [PATCH v3 19/52] acpi: add aml_notify() term, Igor Mammedov, 2015/02/09
[Qemu-devel] [PATCH v3 15/52] acpi: add aml_return() term, Igor Mammedov, 2015/02/09
[Qemu-devel] [PATCH v3 14/52] acpi: add aml_int() term, Igor Mammedov, 2015/02/09
[Qemu-devel] [PATCH v3 20/52] acpi: add aml_call1(), aml_call2(), aml_call3(), aml_call4() helpers, Igor Mammedov, 2015/02/09