diff options
Diffstat (limited to 'src/drivers/intel/fsp2_0/graphics.c')
-rw-r--r-- | src/drivers/intel/fsp2_0/graphics.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/drivers/intel/fsp2_0/graphics.c b/src/drivers/intel/fsp2_0/graphics.c index 039202faa4..caf7bfa807 100644 --- a/src/drivers/intel/fsp2_0/graphics.c +++ b/src/drivers/intel/fsp2_0/graphics.c @@ -103,3 +103,38 @@ uintptr_t fsp_load_vbt(void) return (uintptr_t)vbt; } + +void lb_framebuffer(struct lb_header *header) +{ + enum cb_err ret; + struct lb_framebuffer *framebuffer; + uintptr_t framebuffer_bar; + + /* Pci enumeration happens after silicon init. + * After enumeration graphic framebuffer base may be relocated. + * Get framebuffer base from soc. + */ + framebuffer_bar = fsp_soc_get_igd_bar(); + + if (!framebuffer_bar) { + printk(BIOS_ALERT, "Framebuffer BAR invalid\n"); + return; + } + + framebuffer = (void *)lb_new_record(header); + ret = fsp_fill_lb_framebuffer(framebuffer); + if (ret != CB_SUCCESS) { + printk(BIOS_ALERT, "FSP did not return a valid framebuffer\n"); + return; + } + + /* Resource allocator can move the BAR around after FSP configures it */ + framebuffer->physical_address = framebuffer_bar; + printk(BIOS_DEBUG, "Graphics framebuffer located at 0x%llx\n", + framebuffer->physical_address); +} + +__attribute__((weak)) uintptr_t fsp_soc_get_igd_bar(void) +{ + return 0; +}
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