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authorMatt DeVillier <matt.devillier@gmail.com>2024-09-05 11:27:53 -0500
committerFelix Held <felix-coreboot@felixheld.de>2024-09-07 15:40:58 +0000
commit5a59e418ee624056ac549cc88bae49b8f853eddd (patch)
tree5fd6b124341adfde6c2dd3b561f0f776d5dd8a7a /src/northbridge/intel/sandybridge/early_init.c
parente5c5b1c3d270944809d144f076129ee6eab2c057 (diff)
nb/intel/sandybridge: Add Kconfig to set default IGD allocation
Add a Kconfig choice to select the default IGD memory allocation, for users/boards which do not use an option table to set it. TEST=build/boot google/link, verify IGD size changes with selection. Change-Id: I83d57cf4657cfccbb21416c5da05eeff9e95a44f Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/84225 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src/northbridge/intel/sandybridge/early_init.c')
-rw-r--r--src/northbridge/intel/sandybridge/early_init.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/northbridge/intel/sandybridge/early_init.c b/src/northbridge/intel/sandybridge/early_init.c
index a5ebf9d3a7..1d8a1e8b1a 100644
--- a/src/northbridge/intel/sandybridge/early_init.c
+++ b/src/northbridge/intel/sandybridge/early_init.c
@@ -86,9 +86,10 @@ static void sandybridge_setup_graphics(void)
printk(BIOS_DEBUG, "Initializing Graphics...\n");
- /* Fall back to 32 MiB for IGD memory by setting GGC[7:3] = 1 */
- gfxsize = get_uint_option("gfx_uma_size", 0);
+ /* Fall back to CONFIG_IGD_DEFAULT_UMA_INDEX for IGD memory */
+ gfxsize = get_uint_option("gfx_uma_size", CONFIG_IGD_DEFAULT_UMA_INDEX);
+ /* Program IGD memory allocation by setting GGC[7:3] */
reg16 = pci_read_config16(HOST_BRIDGE, GGC);
reg16 &= ~0x00f8;
reg16 |= (gfxsize + 1) << 3;