The current vesa structure only provides a 32-bit value for the frame buffer. Many modern machines use an address outside the range.
It is still useful to have this common struct, but add a separate frame-buffer address as well.
Add a comment for vesa_setup_video_priv() while we are here.
Signed-off-by: Simon Glass sjg@chromium.org ---
arch/x86/lib/fsp/fsp_graphics.c | 2 +- drivers/pci/pci_rom.c | 10 ++++++---- drivers/video/coreboot.c | 2 +- drivers/video/efi.c | 34 +++++++++++++++++++++------------ include/vesa.h | 16 +++++++++++++++- 5 files changed, 45 insertions(+), 19 deletions(-)
diff --git a/arch/x86/lib/fsp/fsp_graphics.c b/arch/x86/lib/fsp/fsp_graphics.c index b07c666caf7..2bcc49f6051 100644 --- a/arch/x86/lib/fsp/fsp_graphics.c +++ b/arch/x86/lib/fsp/fsp_graphics.c @@ -106,7 +106,7 @@ static int fsp_video_probe(struct udevice *dev) vesa->phys_base_ptr = dm_pci_read_bar32(dev, 2); gd->fb_base = vesa->phys_base_ptr;
- ret = vesa_setup_video_priv(vesa, uc_priv, plat); + ret = vesa_setup_video_priv(vesa, vesa->phys_base_ptr, uc_priv, plat); if (ret) goto err;
diff --git a/drivers/pci/pci_rom.c b/drivers/pci/pci_rom.c index 4eb4f967446..16a5491d20e 100644 --- a/drivers/pci/pci_rom.c +++ b/drivers/pci/pci_rom.c @@ -325,7 +325,7 @@ err: return ret; }
-int vesa_setup_video_priv(struct vesa_mode_info *vesa, +int vesa_setup_video_priv(struct vesa_mode_info *vesa, u64 fb, struct video_priv *uc_priv, struct video_uc_plat *plat) { @@ -348,9 +348,9 @@ int vesa_setup_video_priv(struct vesa_mode_info *vesa,
/* Use double buffering if enabled */ if (IS_ENABLED(CONFIG_VIDEO_COPY) && plat->base) - plat->copy_base = vesa->phys_base_ptr; + plat->copy_base = fb; else - plat->base = vesa->phys_base_ptr; + plat->base = fb; log_debug("base = %lx, copy_base = %lx\n", plat->base, plat->copy_base); plat->size = vesa->bytes_per_scanline * vesa->y_resolution;
@@ -377,7 +377,9 @@ int vesa_setup_video(struct udevice *dev, int (*int15_handler)(void)) return ret; }
- ret = vesa_setup_video_priv(&mode_info.vesa, uc_priv, plat); + ret = vesa_setup_video_priv(&mode_info.vesa, + mode_info.vesa.phys_base_ptr, uc_priv, + plat); if (ret) { if (ret == -ENFILE) { /* diff --git a/drivers/video/coreboot.c b/drivers/video/coreboot.c index d2d87c75c89..c586475e41e 100644 --- a/drivers/video/coreboot.c +++ b/drivers/video/coreboot.c @@ -57,7 +57,7 @@ static int coreboot_video_probe(struct udevice *dev) goto err; }
- ret = vesa_setup_video_priv(vesa, uc_priv, plat); + ret = vesa_setup_video_priv(vesa, vesa->phys_base_ptr, uc_priv, plat); if (ret) { ret = log_msg_ret("setup", ret); goto err; diff --git a/drivers/video/efi.c b/drivers/video/efi.c index 0479f207032..169637c2882 100644 --- a/drivers/video/efi.c +++ b/drivers/video/efi.c @@ -5,6 +5,8 @@ * EFI framebuffer driver based on GOP */
+#define LOG_CATEGORY LOGC_EFI + #include <common.h> #include <dm.h> #include <efi_api.h> @@ -56,11 +58,12 @@ static void efi_find_pixel_bits(u32 mask, u8 *pos, u8 *size) * Gets info from the graphics-output protocol * * @vesa: Place to put the mode information + * @fbp: Returns the address of the frame buffer * @infop: Returns a pointer to the mode info * Returns: 0 if OK, -ENOSYS if boot services are not available, -ENOTSUPP if * the protocol is not supported by EFI */ -static int get_mode_info(struct vesa_mode_info *vesa, +static int get_mode_info(struct vesa_mode_info *vesa, u64 *fbp, struct efi_gop_mode_info **infop) { efi_guid_t efi_gop_guid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID; @@ -74,9 +77,13 @@ static int get_mode_info(struct vesa_mode_info *vesa, ret = boot->locate_protocol(&efi_gop_guid, NULL, (void **)&gop); if (ret) return log_msg_ret("prot", -ENOTSUPP); - mode = gop->mode; + log_debug("maxmode %u, mode %u, info %p, size %lx, fb %lx, fb_size %lx\n", + mode->max_mode, mode->mode, mode->info, mode->info_size, + (ulong)mode->fb_base, (ulong)mode->fb_size); + vesa->phys_base_ptr = mode->fb_base; + *fbp = mode->fb_base; vesa->x_resolution = mode->info->width; vesa->y_resolution = mode->info->height; *infop = mode->info; @@ -91,10 +98,11 @@ static int get_mode_info(struct vesa_mode_info *vesa, * it into a vesa structure. It also returns the mode information. * * @vesa: Place to put the mode information + * @fbp: Returns the address of the frame buffer * @infop: Returns a pointer to the mode info * Returns: 0 if OK, -ve on error */ -static int get_mode_from_entry(struct vesa_mode_info *vesa, +static int get_mode_from_entry(struct vesa_mode_info *vesa, u64 *fbp, struct efi_gop_mode_info **infop) { struct efi_gop_mode *mode; @@ -107,6 +115,7 @@ static int get_mode_from_entry(struct vesa_mode_info *vesa, return ret; } vesa->phys_base_ptr = mode->fb_base; + *fbp = mode->fb_base; vesa->x_resolution = mode->info->width; vesa->y_resolution = mode->info->height; *infop = mode->info; @@ -114,16 +123,17 @@ static int get_mode_from_entry(struct vesa_mode_info *vesa, return 0; }
-static int save_vesa_mode(struct vesa_mode_info *vesa) +static int save_vesa_mode(struct vesa_mode_info *vesa, u64 *fbp) { const struct efi_framebuffer *fbinfo; struct efi_gop_mode_info *info; int ret;
+ printf("start\n"); if (IS_ENABLED(CONFIG_EFI_APP)) - ret = get_mode_info(vesa, &info); + ret = get_mode_info(vesa, fbp, &info); else - ret = get_mode_from_entry(vesa, &info); + ret = get_mode_from_entry(vesa, fbp, &info); if (ret) { printf("EFI graphics output protocol not found (err=%dE)\n", ret); @@ -163,8 +173,7 @@ static int save_vesa_mode(struct vesa_mode_info *vesa) vesa->bytes_per_scanline = (info->pixels_per_scanline * vesa->bits_per_pixel) / 8; } else { - debug("efi set unknown framebuffer format: %d\n", - info->pixel_format); + log_err("Unknown framebuffer format: %d\n", info->pixel_format); return -EINVAL; }
@@ -176,19 +185,20 @@ static int efi_video_probe(struct udevice *dev) struct video_uc_plat *plat = dev_get_uclass_plat(dev); struct video_priv *uc_priv = dev_get_uclass_priv(dev); struct vesa_mode_info *vesa = &mode_info.vesa; + u64 fb; int ret;
/* Initialize vesa_mode_info structure */ - ret = save_vesa_mode(vesa); + ret = save_vesa_mode(vesa, &fb); if (ret) goto err;
- ret = vesa_setup_video_priv(vesa, uc_priv, plat); + ret = vesa_setup_video_priv(vesa, fb, uc_priv, plat); if (ret) goto err;
- printf("Video: %dx%dx%d\n", uc_priv->xsize, uc_priv->ysize, - vesa->bits_per_pixel); + printf("Video: %dx%dx%d @ %lx\n", uc_priv->xsize, uc_priv->ysize, + vesa->bits_per_pixel, (ulong)fb);
return 0;
diff --git a/include/vesa.h b/include/vesa.h index a42c1796863..98112208114 100644 --- a/include/vesa.h +++ b/include/vesa.h @@ -108,7 +108,21 @@ extern struct vesa_state mode_info;
struct video_priv; struct video_uc_plat; -int vesa_setup_video_priv(struct vesa_mode_info *vesa, + +/** + * vesa_setup_video_priv() - Set up a video device using VESA information + * + * The vesa struct is used by various x86 drivers, so this is a common function + * to use it to set up the video. + * + * @vesa: Vesa information to use (vesa->phys_base_ptr is ignored) + * @fb: Frame buffer address (since vesa->phys_base_ptr is only 32 bits) + * @uc_priv: Video device's uclass-private information + * @plat: Video devices's uclass-private platform data + * @return 0 if OK, -ENXIO if the x resolution is 0, -EEPROTONOSUPPORT if the + * pixel format is not supported + */ +int vesa_setup_video_priv(struct vesa_mode_info *vesa, u64 fb, struct video_priv *uc_priv, struct video_uc_plat *plat); int vesa_setup_video(struct udevice *dev, int (*int15_handler)(void));