diff options
Diffstat (limited to 'config/coreboot/default/patches/0040-nb-haswell-Disable-iGPU-when-dGPU-is-used.patch')
| -rw-r--r-- | config/coreboot/default/patches/0040-nb-haswell-Disable-iGPU-when-dGPU-is-used.patch | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/config/coreboot/default/patches/0040-nb-haswell-Disable-iGPU-when-dGPU-is-used.patch b/config/coreboot/default/patches/0040-nb-haswell-Disable-iGPU-when-dGPU-is-used.patch deleted file mode 100644 index 7a02d902..00000000 --- a/config/coreboot/default/patches/0040-nb-haswell-Disable-iGPU-when-dGPU-is-used.patch +++ /dev/null @@ -1,54 +0,0 @@ -From c6ce9c635e6576c86c546177c3d770dec2f3c9ae Mon Sep 17 00:00:00 2001 -From: Leah Rowe <info@minifree.org> -Date: Fri, 23 Feb 2024 13:33:31 +0000 -Subject: [PATCH 1/1] nb/haswell: Disable iGPU when dGPU is used - -This is usually is handled by Haswell mrc.bin, disabling VGA -decode on the iGPU when a dGPU is installed. However, Broadwell -mrc.bin does not, so the iGPU and dGPU are both enabled. - -This patch disables legacy VGA cycles for iGPU, under such -conditions. It has been tested on Broadwell mrc.bin when -using a graphics card on Dell OptiPlex 9020 SFF (currently -under review at this time of writing, submitted by Mate -Kukri). - -This patch has also been tested when Haswell mrc.bin is used, -and there are seemingly no breaking changes caused by it. - -Change-Id: I1df0a3aa42f8475b7741007bf3e28c2e089d916b -Signed-off-by: Leah Rowe <info@minifree.org> -Reviewed-on: https://review.coreboot.org/c/coreboot/+/80717 -Tested-by: build bot (Jenkins) <no-reply@coreboot.org> -Reviewed-by: Nico Huber <nico.h@gmx.de> ---- - src/northbridge/intel/haswell/gma.c | 7 +++++++ - 1 file changed, 7 insertions(+) - -diff --git a/src/northbridge/intel/haswell/gma.c b/src/northbridge/intel/haswell/gma.c -index 6e6948b70f..48a0ba54c7 100644 ---- a/src/northbridge/intel/haswell/gma.c -+++ b/src/northbridge/intel/haswell/gma.c -@@ -461,12 +461,19 @@ static void gma_generate_ssdt(const struct device *dev) - drivers_intel_gma_displays_ssdt_generate(&chip->gfx); - } - -+static void gma_func0_disable(struct device *dev) -+{ -+ /* Disable VGA decode */ -+ pci_or_config16(pcidev_on_root(0, 0), GGC, 1 << 1); -+} -+ - static struct device_operations gma_func0_ops = { - .read_resources = pci_dev_read_resources, - .set_resources = pci_dev_set_resources, - .enable_resources = pci_dev_enable_resources, - .init = gma_func0_init, - .acpi_fill_ssdt = gma_generate_ssdt, -+ .vga_disable = gma_func0_disable, - .ops_pci = &pci_dev_ops_pci, - }; - --- -2.39.2 - |