diff options
| author | Matt DeVillier <matt.devillier@gmail.com> | 2024-09-05 11:27:53 -0500 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2024-09-07 15:40:58 +0000 |
| commit | 5a59e418ee624056ac549cc88bae49b8f853eddd (patch) | |
| tree | 5fd6b124341adfde6c2dd3b561f0f776d5dd8a7a /src/northbridge/intel/sandybridge | |
| parent | e5c5b1c3d270944809d144f076129ee6eab2c057 (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')
| -rw-r--r-- | src/northbridge/intel/sandybridge/Kconfig | 28 | ||||
| -rw-r--r-- | src/northbridge/intel/sandybridge/early_init.c | 5 |
2 files changed, 31 insertions, 2 deletions
diff --git a/src/northbridge/intel/sandybridge/Kconfig b/src/northbridge/intel/sandybridge/Kconfig index fa40b0668d..973eed8bbd 100644 --- a/src/northbridge/intel/sandybridge/Kconfig +++ b/src/northbridge/intel/sandybridge/Kconfig @@ -180,4 +180,32 @@ config FIXED_EPBAR_MMIO_BASE config PRERAM_CBFS_CACHE_SIZE default 0x0 +choice + prompt "Default IGD Memory Allocation" + default IGD_DEFAULT_UMA_SIZE_32MB + help + The amount of system memory allocated for the integrated GPU if not + set via an option table. + +config IGD_DEFAULT_UMA_SIZE_32MB + bool "32MB" + +config IGD_DEFAULT_UMA_SIZE_64MB + bool "64MB" + +config IGD_DEFAULT_UMA_SIZE_96MB + bool "96MB" + +config IGD_DEFAULT_UMA_SIZE_128MB + bool "128MB" + +endchoice + +config IGD_DEFAULT_UMA_INDEX + int + default 0 if IGD_DEFAULT_UMA_SIZE_32MB + default 1 if IGD_DEFAULT_UMA_SIZE_64MB + default 2 if IGD_DEFAULT_UMA_SIZE_96MB + default 3 if IGD_DEFAULT_UMA_SIZE_128MB + endif 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; |