From d1fbd923da0f982f12b61a44e74c2e1f74c6ef56 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Mon, 6 Dec 2010 12:56:44 +1000
Subject: [PATCH] nouveau/acpi: improve detection of what is IGD and what is
DIS.
This improves the IGD/DIS picking using firstly if Intel, then
if the bus is bus 0. There may be a correct way to do this, but
I've no idea what it is.
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
drivers/gpu/drm/nouveau/nouveau_acpi.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c
index 119152606e4c..a54238058dc5 100644
--- a/drivers/gpu/drm/nouveau/nouveau_acpi.c
+++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c
@@ -130,10 +130,15 @@ static int nouveau_dsm_init(void)
static int nouveau_dsm_get_client_id(struct pci_dev *pdev)
{
- if (nouveau_dsm_priv.dhandle == DEVICE_ACPI_HANDLE(&pdev->dev))
+ /* easy option one - intel vendor ID means Integrated */
+ if (pdev->vendor == PCI_VENDOR_ID_INTEL)
return VGA_SWITCHEROO_IGD;
- else
- return VGA_SWITCHEROO_DIS;
+
+ /* is this device on Bus 0? - this may need improving */
+ if (pdev->bus->number == 0)
+ return VGA_SWITCHEROO_IGD;
+
+ return VGA_SWITCHEROO_DIS;
}
static struct vga_switcheroo_handler nouveau_dsm_handler = {
--
GitLab