From 92106b166671a315a2b1e8f5cc467f2fa0823301 Mon Sep 17 00:00:00 2001 From: Patrick Rudolph Date: Wed, 19 Feb 2020 12:54:06 +0100 Subject: drivers: Replace multiple fill_lb_framebuffer with single instance Currently it's not possible to add multiple graphics drivers into one coreboot image. This patch series will fix this issue by providing a single API that multiple graphics drivers can use. This is required for platforms that have two graphic cards, but different graphic drivers, like Intel+Aspeed on server platforms or Intel+Nvidia on consumer notebooks. The goal is to remove duplicated fill_fb_framebuffer(), the advertisment of multiple independent framebuffers in coreboot tables, and better runtime/build time graphic configuration options. Replace all duplications of fill_fb_framebuffer and provide a single one in edid_fill_fb.c. Should not change the current behaviour as still only one graphic driver can be active at time. Change-Id: Ife507f7e7beaf59854e533551b4b87ea6980c1f4 Signed-off-by: Patrick Rudolph Reviewed-on: https://review.coreboot.org/c/coreboot/+/39003 Reviewed-by: Angel Pons Reviewed-by: Frans Hendriks Reviewed-by: Christian Walter Tested-by: build bot (Jenkins) --- src/drivers/intel/fsp2_0/graphics.c | 87 +++++++++++++++---------------------- 1 file changed, 34 insertions(+), 53 deletions(-) (limited to 'src/drivers/intel/fsp2_0/graphics.c') diff --git a/src/drivers/intel/fsp2_0/graphics.c b/src/drivers/intel/fsp2_0/graphics.c index f6686c4f57..ddf8f0b857 100644 --- a/src/drivers/intel/fsp2_0/graphics.c +++ b/src/drivers/intel/fsp2_0/graphics.c @@ -2,9 +2,11 @@ #include #include +#include #include #include #include +#include enum pixel_format { pixel_rgbx_8bpc = 0, @@ -46,75 +48,54 @@ static const struct fsp_framebuffer { [pixel_bgrx_8bpc] = { {16, 8}, {8, 8}, {0, 8}, {24, 8} }, }; -enum cb_err fsp_fill_lb_framebuffer(struct lb_framebuffer *framebuffer) + +void fsp_report_framebuffer_info(const uintptr_t framebuffer_bar) { size_t size; const struct hob_graphics_info *ginfo; const struct fsp_framebuffer *fbinfo; + /* + * Pci enumeration happens after silicon init. + * After enumeration graphic framebuffer base may be relocated. + */ + if (!framebuffer_bar) { + printk(BIOS_ALERT, "Framebuffer BAR invalid\n"); + return; + } + ginfo = fsp_find_extension_hob_by_guid(fsp_graphics_info_guid, &size); if (!ginfo) { printk(BIOS_ALERT, "Graphics hand-off block not found\n"); - return CB_ERR; + return; } if (ginfo->pixel_format >= ARRAY_SIZE(fsp_framebuffer_format_map)) { printk(BIOS_ALERT, "FSP set unknown framebuffer format: %d\n", ginfo->pixel_format); - return CB_ERR; + return; } fbinfo = fsp_framebuffer_format_map + ginfo->pixel_format; - framebuffer->physical_address = ginfo->framebuffer_base; - framebuffer->x_resolution = ginfo->horizontal_resolution; - framebuffer->y_resolution = ginfo->vertical_resolution; - framebuffer->bytes_per_line = ginfo->pixels_per_scanline * 4; - framebuffer->bits_per_pixel = 32; - framebuffer->red_mask_pos = fbinfo->red.pos; - framebuffer->red_mask_size = fbinfo->red.size; - framebuffer->green_mask_pos = fbinfo->green.pos; - framebuffer->green_mask_size = fbinfo->green.size; - framebuffer->blue_mask_pos = fbinfo->blue.pos; - framebuffer->blue_mask_size = fbinfo->blue.size; - framebuffer->reserved_mask_pos = fbinfo->rsvd.pos; - framebuffer->reserved_mask_size = fbinfo->rsvd.pos; - - return CB_SUCCESS; -} - -int fill_lb_framebuffer(struct lb_framebuffer *framebuffer) -{ - enum cb_err ret; - 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 -1; - } - - ret = fsp_fill_lb_framebuffer(framebuffer); - if (ret != CB_SUCCESS) { - printk(BIOS_ALERT, "FSP did not return a valid framebuffer\n"); - return -1; - } - - /* 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); - - return 0; -} - -__weak uintptr_t fsp_soc_get_igd_bar(void) -{ - return 0; + const struct lb_framebuffer fb = { + .physical_address = framebuffer_bar, + .x_resolution = ginfo->horizontal_resolution, + .y_resolution = ginfo->vertical_resolution, + .bytes_per_line = ginfo->pixels_per_scanline * 4, + .bits_per_pixel = fbinfo->rsvd.size + fbinfo->red.size + + fbinfo->green.size + fbinfo->blue.size, + .red_mask_pos = fbinfo->red.pos, + .red_mask_size = fbinfo->red.size, + .green_mask_pos = fbinfo->green.pos, + .green_mask_size = fbinfo->green.size, + .blue_mask_pos = fbinfo->blue.pos, + .blue_mask_size = fbinfo->blue.size, + .reserved_mask_pos = fbinfo->rsvd.pos, + .reserved_mask_size = fbinfo->rsvd.size, + .orientation = LB_FB_ORIENTATION_NORMAL, + }; + + fb_add_framebuffer_info_ex(&fb); } -- cgit v1.2.3