coreboot/default: merge coreboot/haswell

Signed-off-by: Leah Rowe <leah@libreboot.org>

1 files changed, 0 insertions, 55 deletions

diff --git a/config/coreboot/haswell/patches/0027-nb-haswell-lock-policy-regs-when-disabling-IOMMU.patch b/config/coreboot/haswell/patches/0027-nb-haswell-lock-policy-regs-when-disabling-IOMMU.patch
deleted file mode 100644
index 9b6020a2..00000000
--- a/config/coreboot/haswell/patches/0027-nb-haswell-lock-policy-regs-when-disabling-IOMMU.patch
+++ /dev/null
@@ -1,55 +0,0 @@
-From b75d9e385137b3b561fc7220c04f742817d319b2 Mon Sep 17 00:00:00 2001
-From: Leah Rowe <info@minifree.org>
-Date: Sat, 4 May 2024 02:00:53 +0100
-Subject: [PATCH 1/1] nb/haswell: lock policy regs when disabling IOMMU
-
-Angel Pons told me I should do it. See comments here:
-https://review.coreboot.org/c/coreboot/+/81016
-
-I see no harm in complying with the request. I'll merge
-this into the main patch at a later date and try to
-get this upstreamed.
-
-Just a reminder: on Optiplex 9020 variants, Xorg locks up
-under Linux when tested with a graphics card; disabling
-IOMMU works around the issue. Intel graphics work just fine
-with IOMMU turned on. Libreboot disables IOMMU by default,
-on the 9020, so that users can install graphics cards easily.
-
-Signed-off-by: Leah Rowe <info@minifree.org>
----
- src/northbridge/intel/haswell/early_init.c | 15 +++++++--------
- 1 file changed, 7 insertions(+), 8 deletions(-)
-
-diff --git a/src/northbridge/intel/haswell/early_init.c b/src/northbridge/intel/haswell/early_init.c
-index 1a7e0b1076..e9506ee830 100644
---- a/src/northbridge/intel/haswell/early_init.c
-+++ b/src/northbridge/intel/haswell/early_init.c
-@@ -160,17 +160,16 @@ static void haswell_setup_iommu(void)
- 	const u32 capid0_a = pci_read_config32(HOST_BRIDGE, CAPID0_A);
- 	u8 enable_iommu = get_uint_option("iommu", 1);
- 
--	if (!enable_iommu)
--		return;
--
- 	if (capid0_a & VTD_DISABLE)
- 		return;
- 
--	/* Setup BARs: zeroize top 32 bits; set enable bit */
--	mchbar_write32(GFXVTBAR + 4, GFXVT_BASE_ADDRESS >> 32);
--	mchbar_write32(GFXVTBAR + 0, GFXVT_BASE_ADDRESS | 1);
--	mchbar_write32(VTVC0BAR + 4, VTVC0_BASE_ADDRESS >> 32);
--	mchbar_write32(VTVC0BAR + 0, VTVC0_BASE_ADDRESS | 1);
-+	if (enable_iommu) {
-+		/* Setup BARs: zeroize top 32 bits; set enable bit */
-+		mchbar_write32(GFXVTBAR + 4, GFXVT_BASE_ADDRESS >> 32);
-+		mchbar_write32(GFXVTBAR + 0, GFXVT_BASE_ADDRESS | 1);
-+		mchbar_write32(VTVC0BAR + 4, VTVC0_BASE_ADDRESS >> 32);
-+		mchbar_write32(VTVC0BAR + 0, VTVC0_BASE_ADDRESS | 1);
-+	}
- 
- 	/* Set L3HIT2PEND_DIS, lock GFXVTBAR policy config registers */
- 	u32 reg32;
--- 
-2.39.2
-