diff options
| author | Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:18:27 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:19:04 +0200 |
| commit | 6ac1ef482d7ae0c690f1640bf6eb818ff9a2d91e (patch) | |
| tree | 021cc9f6b477146fcebe6f3be4752abfa2ba18a9 /drivers/gpu/drm/nouveau/nouveau_mxm.c | |
| parent | 682968e0c425c60f0dde37977e5beb2b12ddc4cc (diff) | |
| parent | a385ec4f11bdcf81af094c03e2444ee9b7fad2e5 (diff) | |
Merge branch 'perf/core' into perf/uprobes
Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_mxm.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_mxm.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_mxm.c b/drivers/gpu/drm/nouveau/nouveau_mxm.c index e5a64f0f4cb7..07d0d1e03690 100644 --- a/drivers/gpu/drm/nouveau/nouveau_mxm.c +++ b/drivers/gpu/drm/nouveau/nouveau_mxm.c @@ -582,6 +582,35 @@ mxm_shadow_dsm(struct drm_device *dev, u8 version) #define WMI_WMMX_GUID "F6CB5C3C-9CAE-4EBD-B577-931EA32A2CC0" +static u8 +wmi_wmmx_mxmi(struct drm_device *dev, u8 version) +{ + u32 mxmi_args[] = { 0x494D584D /* MXMI */, version, 0 }; + struct acpi_buffer args = { sizeof(mxmi_args), mxmi_args }; + struct acpi_buffer retn = { ACPI_ALLOCATE_BUFFER, NULL }; + union acpi_object *obj; + acpi_status status; + + status = wmi_evaluate_method(WMI_WMMX_GUID, 0, 0, &args, &retn); + if (ACPI_FAILURE(status)) { + MXM_DBG(dev, "WMMX MXMI returned %d\n", status); + return 0x00; + } + + obj = retn.pointer; + if (obj->type == ACPI_TYPE_INTEGER) { + version = obj->integer.value; + MXM_DBG(dev, "WMMX MXMI version %d.%d\n", + (version >> 4), version & 0x0f); + } else { + version = 0; + MXM_DBG(dev, "WMMX MXMI returned non-integer\n"); + } + + kfree(obj); + return version; +} + static bool mxm_shadow_wmi(struct drm_device *dev, u8 version) { @@ -592,7 +621,15 @@ mxm_shadow_wmi(struct drm_device *dev, u8 version) union acpi_object *obj; acpi_status status; - if (!wmi_has_guid(WMI_WMMX_GUID)) + if (!wmi_has_guid(WMI_WMMX_GUID)) { + MXM_DBG(dev, "WMMX GUID not found\n"); + return false; + } + + mxms_args[1] = wmi_wmmx_mxmi(dev, 0x00); + if (!mxms_args[1]) + mxms_args[1] = wmi_wmmx_mxmi(dev, version); + if (!mxms_args[1]) return false; status = wmi_evaluate_method(WMI_WMMX_GUID, 0, 0, &args, &retn); |