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ACPI: Switch to use generic guid_t in acpi_evaluate_dsm()

Browse source 
acpi_evaluate_dsm() and friends take a pointer to a raw buffer of 16
bytes. Instead we convert them to use guid_t type. At the same time we
convert current users.

acpi_str_to_uuid() becomes useless after the conversion and it's safe to
get rid of it.

Acked-by: Rafael J. Wysocki <[email protected]>
Cc: Borislav Petkov <[email protected]>
Acked-by: Dan Williams <[email protected]>
Cc: Amir Goldstein <[email protected]>
Reviewed-by: Jarkko Sakkinen <[email protected]>
Reviewed-by: Jani Nikula <[email protected]>
Acked-by: Jani Nikula <[email protected]>
Cc: Ben Skeggs <[email protected]>
Acked-by: Benjamin Tissoires <[email protected]>
Acked-by: Joerg Roedel <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Cc: Yisen Zhuang <[email protected]>
Acked-by: Bjorn Helgaas <[email protected]>
Acked-by: Felipe Balbi <[email protected]>
Acked-by: Mathias Nyman <[email protected]>
Reviewed-by: Heikki Krogerus <[email protected]>
Acked-by: Mark Brown <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
This commit is contained in:
Andy Shevchenko 2017-06-05 19:40:46 +03:00 • committed by Christoph Hellwig
commit 94116f8126
26 changed files with 106 additions and 144 deletions
Download patch file Download diff file Expand all files Collapse all files

14
drivers/gpu/drm/i915/intel_acpi.c
View file

@ -15,13 +15,9 @@ static struct intel_dsm_priv {
acpi_handle dhandle;
} intel_dsm_priv;
static const u8 intel_dsm_guid[] = {
0xd3, 0x73, 0xd8, 0x7e,
0xd0, 0xc2,
0x4f, 0x4e,
0xa8, 0x54,
0x0f, 0x13, 0x17, 0xb0, 0x1c, 0x2c
};
static const guid_t intel_dsm_guid =
GUID_INIT(0x7ed873d3, 0xc2d0, 0x4e4f,
0xa8, 0x54, 0x0f, 0x13, 0x17, 0xb0, 0x1c, 0x2c);
static char *intel_dsm_port_name(u8 id)
{
@ -80,7 +76,7 @@ static void intel_dsm_platform_mux_info(void)
int i;
union acpi_object *pkg, *connector_count;
pkg = acpi_evaluate_dsm_typed(intel_dsm_priv.dhandle, intel_dsm_guid,
pkg = acpi_evaluate_dsm_typed(intel_dsm_priv.dhandle, &intel_dsm_guid,
INTEL_DSM_REVISION_ID, INTEL_DSM_FN_PLATFORM_MUX_INFO,
NULL, ACPI_TYPE_PACKAGE);
if (!pkg) {
@ -118,7 +114,7 @@ static bool intel_dsm_pci_probe(struct pci_dev *pdev)
if (!dhandle)
return false;
if (!acpi_check_dsm(dhandle, intel_dsm_guid, INTEL_DSM_REVISION_ID,
if (!acpi_check_dsm(dhandle, &intel_dsm_guid, INTEL_DSM_REVISION_ID,
1 << INTEL_DSM_FN_PLATFORM_MUX_INFO)) {
DRM_DEBUG_KMS("no _DSM method for intel device\n");
return false;

20
drivers/gpu/drm/nouveau/nouveau_acpi.c
View file

@ -60,15 +60,13 @@ bool nouveau_is_v1_dsm(void) {
}
#ifdef CONFIG_VGA_SWITCHEROO
static const char nouveau_dsm_muid[] = {
0xA0, 0xA0, 0x95, 0x9D, 0x60, 0x00, 0x48, 0x4D,
0xB3, 0x4D, 0x7E, 0x5F, 0xEA, 0x12, 0x9F, 0xD4,
};
static const guid_t nouveau_dsm_muid =
GUID_INIT(0x9D95A0A0, 0x0060, 0x4D48,
0xB3, 0x4D, 0x7E, 0x5F, 0xEA, 0x12, 0x9F, 0xD4);
static const char nouveau_op_dsm_muid[] = {
0xF8, 0xD8, 0x86, 0xA4, 0xDA, 0x0B, 0x1B, 0x47,
0xA7, 0x2B, 0x60, 0x42, 0xA6, 0xB5, 0xBE, 0xE0,
};
static const guid_t nouveau_op_dsm_muid =
GUID_INIT(0xA486D8F8, 0x0BDA, 0x471B,
0xA7, 0x2B, 0x60, 0x42, 0xA6, 0xB5, 0xBE, 0xE0);
static int nouveau_optimus_dsm(acpi_handle handle, int func, int arg, uint32_t *result)
{
@ -86,7 +84,7 @@ static int nouveau_optimus_dsm(acpi_handle handle, int func, int arg, uint32_t *
args_buff[i] = (arg >> i * 8) & 0xFF;
*result = 0;
obj = acpi_evaluate_dsm_typed(handle, nouveau_op_dsm_muid, 0x00000100,
obj = acpi_evaluate_dsm_typed(handle, &nouveau_op_dsm_muid, 0x00000100,
func, &argv4, ACPI_TYPE_BUFFER);
if (!obj) {
acpi_handle_info(handle, "failed to evaluate _DSM\n");
@ -138,7 +136,7 @@ static int nouveau_dsm(acpi_handle handle, int func, int arg)
.integer.value = arg,
};
obj = acpi_evaluate_dsm_typed(handle, nouveau_dsm_muid, 0x00000102,
obj = acpi_evaluate_dsm_typed(handle, &nouveau_dsm_muid, 0x00000102,
func, &argv4, ACPI_TYPE_INTEGER);
if (!obj) {
acpi_handle_info(handle, "failed to evaluate _DSM\n");
@ -259,7 +257,7 @@ static void nouveau_dsm_pci_probe(struct pci_dev *pdev, acpi_handle *dhandle_out
if (!acpi_has_method(dhandle, "_DSM"))
return;
supports_mux = acpi_check_dsm(dhandle, nouveau_dsm_muid, 0x00000102,
supports_mux = acpi_check_dsm(dhandle, &nouveau_dsm_muid, 0x00000102,
1 << NOUVEAU_DSM_POWER);
optimus_funcs = nouveau_dsm_get_optimus_functions(dhandle);

9
drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c
View file

@ -81,10 +81,9 @@ mxm_shadow_dsm(struct nvkm_mxm *mxm, u8 version)
{
struct nvkm_subdev *subdev = &mxm->subdev;
struct nvkm_device *device = subdev->device;
static char muid[] = {
0x00, 0xA4, 0x04, 0x40, 0x7D, 0x91, 0xF2, 0x4C,
0xB8, 0x9C, 0x79, 0xB6, 0x2F, 0xD5, 0x56, 0x65
};
static guid_t muid =
GUID_INIT(0x4004A400, 0x917D, 0x4CF2,
0xB8, 0x9C, 0x79, 0xB6, 0x2F, 0xD5, 0x56, 0x65);
u32 mxms_args[] = { 0x00000000 };
union acpi_object argv4 = {
.buffer.type = ACPI_TYPE_BUFFER,
@ -105,7 +104,7 @@ mxm_shadow_dsm(struct nvkm_mxm *mxm, u8 version)
* unless you pass in exactly the version it supports..
*/
rev = (version & 0xf0) << 4 | (version & 0x0f);
obj = acpi_evaluate_dsm(handle, muid, rev, 0x00000010, &argv4);
obj = acpi_evaluate_dsm(handle, &muid, rev, 0x00000010, &argv4);
if (!obj) {
nvkm_debug(subdev, "DSM MXMS failed\n");
return false;