Index: head/sys/arm64/include/metadata.h =================================================================== --- head/sys/arm64/include/metadata.h +++ head/sys/arm64/include/metadata.h @@ -31,11 +31,24 @@ #define MODINFOMD_EFI_MAP 0x1001 #define MODINFOMD_DTBP 0x1002 +#define MODINFOMD_EFI_FB 0x1003 struct efi_map_header { size_t memory_size; size_t descriptor_size; uint32_t descriptor_version; +}; + +struct efi_fb { + uint64_t fb_addr; + uint64_t fb_size; + uint32_t fb_height; + uint32_t fb_width; + uint32_t fb_stride; + uint32_t fb_mask_red; + uint32_t fb_mask_green; + uint32_t fb_mask_blue; + uint32_t fb_mask_reserved; }; #endif /* !_MACHINE_METADATA_H_ */ Index: head/sys/boot/efi/loader/Makefile =================================================================== --- head/sys/boot/efi/loader/Makefile +++ head/sys/boot/efi/loader/Makefile @@ -22,6 +22,7 @@ conf.c \ copy.c \ efi_main.c \ + framebuffer.c \ main.c \ self_reloc.c \ smbios.c \ Index: head/sys/boot/efi/loader/arch/amd64/Makefile.inc =================================================================== --- head/sys/boot/efi/loader/arch/amd64/Makefile.inc +++ head/sys/boot/efi/loader/arch/amd64/Makefile.inc @@ -2,7 +2,6 @@ SRCS+= amd64_tramp.S \ start.S \ - framebuffer.c \ elf64_freebsd.c \ trap.c \ exc.S Index: head/sys/boot/efi/loader/arch/amd64/framebuffer.h =================================================================== --- head/sys/boot/efi/loader/arch/amd64/framebuffer.h +++ head/sys/boot/efi/loader/arch/amd64/framebuffer.h @@ -1,36 +0,0 @@ -/*- - * Copyright (c) 2013 The FreeBSD Foundation - * All rights reserved. - * - * This software was developed by Benno Rice under sponsorship from - * the FreeBSD Foundation. - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#ifndef _EFIFB_H_ -#define _EFIFB_H_ - -int efi_find_framebuffer(struct efi_fb *efifb); - -#endif /* _EFIFB_H_ */ Index: head/sys/boot/efi/loader/arch/amd64/framebuffer.c =================================================================== --- head/sys/boot/efi/loader/arch/amd64/framebuffer.c +++ head/sys/boot/efi/loader/arch/amd64/framebuffer.c @@ -1,568 +0,0 @@ -/*- - * Copyright (c) 2013 The FreeBSD Foundation - * All rights reserved. - * - * This software was developed by Benno Rice under sponsorship from - * the FreeBSD Foundation. - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include -__FBSDID("$FreeBSD$"); - -#include -#include -#include - -#include -#include -#include -#include -#include - -#include "framebuffer.h" - -static EFI_GUID gop_guid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID; -static EFI_GUID pciio_guid = EFI_PCI_IO_PROTOCOL_GUID; -static EFI_GUID uga_guid = EFI_UGA_DRAW_PROTOCOL_GUID; - -static u_int -efifb_color_depth(struct efi_fb *efifb) -{ - uint32_t mask; - u_int depth; - - mask = efifb->fb_mask_red | efifb->fb_mask_green | - efifb->fb_mask_blue | efifb->fb_mask_reserved; - if (mask == 0) - return (0); - for (depth = 1; mask != 1; depth++) - mask >>= 1; - return (depth); -} - -static int -efifb_mask_from_pixfmt(struct efi_fb *efifb, EFI_GRAPHICS_PIXEL_FORMAT pixfmt, - EFI_PIXEL_BITMASK *pixinfo) -{ - int result; - - result = 0; - switch (pixfmt) { - case PixelRedGreenBlueReserved8BitPerColor: - efifb->fb_mask_red = 0x000000ff; - efifb->fb_mask_green = 0x0000ff00; - efifb->fb_mask_blue = 0x00ff0000; - efifb->fb_mask_reserved = 0xff000000; - break; - case PixelBlueGreenRedReserved8BitPerColor: - efifb->fb_mask_red = 0x00ff0000; - efifb->fb_mask_green = 0x0000ff00; - efifb->fb_mask_blue = 0x000000ff; - efifb->fb_mask_reserved = 0xff000000; - break; - case PixelBitMask: - efifb->fb_mask_red = pixinfo->RedMask; - efifb->fb_mask_green = pixinfo->GreenMask; - efifb->fb_mask_blue = pixinfo->BlueMask; - efifb->fb_mask_reserved = pixinfo->ReservedMask; - break; - default: - result = 1; - break; - } - return (result); -} - -static int -efifb_from_gop(struct efi_fb *efifb, EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *mode, - EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info) -{ - int result; - - efifb->fb_addr = mode->FrameBufferBase; - efifb->fb_size = mode->FrameBufferSize; - efifb->fb_height = info->VerticalResolution; - efifb->fb_width = info->HorizontalResolution; - efifb->fb_stride = info->PixelsPerScanLine; - result = efifb_mask_from_pixfmt(efifb, info->PixelFormat, - &info->PixelInformation); - return (result); -} - -static ssize_t -efifb_uga_find_pixel(EFI_UGA_DRAW_PROTOCOL *uga, u_int line, - EFI_PCI_IO_PROTOCOL *pciio, uint64_t addr, uint64_t size) -{ - EFI_UGA_PIXEL pix0, pix1; - uint8_t *data1, *data2; - size_t count, maxcount = 1024; - ssize_t ofs; - EFI_STATUS status; - u_int idx; - - status = uga->Blt(uga, &pix0, EfiUgaVideoToBltBuffer, - 0, line, 0, 0, 1, 1, 0); - if (EFI_ERROR(status)) { - printf("UGA BLT operation failed (video->buffer)"); - return (-1); - } - pix1.Red = ~pix0.Red; - pix1.Green = ~pix0.Green; - pix1.Blue = ~pix0.Blue; - pix1.Reserved = 0; - - data1 = calloc(maxcount, 2); - if (data1 == NULL) { - printf("Unable to allocate memory"); - return (-1); - } - data2 = data1 + maxcount; - - ofs = 0; - while (size > 0) { - count = min(size, maxcount); - - status = pciio->Mem.Read(pciio, EfiPciIoWidthUint32, - EFI_PCI_IO_PASS_THROUGH_BAR, addr + ofs, count >> 2, - data1); - if (EFI_ERROR(status)) { - printf("Error reading frame buffer (before)"); - goto fail; - } - status = uga->Blt(uga, &pix1, EfiUgaBltBufferToVideo, - 0, 0, 0, line, 1, 1, 0); - if (EFI_ERROR(status)) { - printf("UGA BLT operation failed (modify)"); - goto fail; - } - status = pciio->Mem.Read(pciio, EfiPciIoWidthUint32, - EFI_PCI_IO_PASS_THROUGH_BAR, addr + ofs, count >> 2, - data2); - if (EFI_ERROR(status)) { - printf("Error reading frame buffer (after)"); - goto fail; - } - status = uga->Blt(uga, &pix0, EfiUgaBltBufferToVideo, - 0, 0, 0, line, 1, 1, 0); - if (EFI_ERROR(status)) { - printf("UGA BLT operation failed (restore)"); - goto fail; - } - for (idx = 0; idx < count; idx++) { - if (data1[idx] != data2[idx]) { - free(data1); - return (ofs + (idx & ~3)); - } - } - ofs += count; - size -= count; - } - printf("No change detected in frame buffer"); - - fail: - printf(" -- error %lu\n", EFI_ERROR_CODE(status)); - free(data1); - return (-1); -} - -static EFI_PCI_IO_PROTOCOL * -efifb_uga_get_pciio(void) -{ - EFI_PCI_IO_PROTOCOL *pciio; - EFI_HANDLE *buf, *hp; - EFI_STATUS status; - UINTN bufsz; - - /* Get all handles that support the UGA protocol. */ - bufsz = 0; - status = BS->LocateHandle(ByProtocol, &uga_guid, NULL, &bufsz, NULL); - if (status != EFI_BUFFER_TOO_SMALL) - return (NULL); - buf = malloc(bufsz); - status = BS->LocateHandle(ByProtocol, &uga_guid, NULL, &bufsz, buf); - if (status != EFI_SUCCESS) { - free(buf); - return (NULL); - } - bufsz /= sizeof(EFI_HANDLE); - - /* Get the PCI I/O interface of the first handle that supports it. */ - pciio = NULL; - for (hp = buf; hp < buf + bufsz; hp++) { - status = BS->HandleProtocol(*hp, &pciio_guid, (void **)&pciio); - if (status == EFI_SUCCESS) { - free(buf); - return (pciio); - } - } - free(buf); - return (NULL); -} - -static EFI_STATUS -efifb_uga_locate_framebuffer(EFI_PCI_IO_PROTOCOL *pciio, uint64_t *addrp, - uint64_t *sizep) -{ - uint8_t *resattr; - uint64_t addr, size; - EFI_STATUS status; - u_int bar; - - if (pciio == NULL) - return (EFI_DEVICE_ERROR); - - /* Attempt to get the frame buffer address (imprecise). */ - *addrp = 0; - *sizep = 0; - for (bar = 0; bar < 6; bar++) { - status = pciio->GetBarAttributes(pciio, bar, NULL, - (void **)&resattr); - if (status != EFI_SUCCESS) - continue; - /* XXX magic offsets and constants. */ - if (resattr[0] == 0x87 && resattr[3] == 0) { - /* 32-bit address space descriptor (MEMIO) */ - addr = le32dec(resattr + 10); - size = le32dec(resattr + 22); - } else if (resattr[0] == 0x8a && resattr[3] == 0) { - /* 64-bit address space descriptor (MEMIO) */ - addr = le64dec(resattr + 14); - size = le64dec(resattr + 38); - } else { - addr = 0; - size = 0; - } - BS->FreePool(resattr); - if (addr == 0 || size == 0) - continue; - - /* We assume the largest BAR is the frame buffer. */ - if (size > *sizep) { - *addrp = addr; - *sizep = size; - } - } - return ((*addrp == 0 || *sizep == 0) ? EFI_DEVICE_ERROR : 0); -} - -static int -efifb_from_uga(struct efi_fb *efifb, EFI_UGA_DRAW_PROTOCOL *uga) -{ - EFI_PCI_IO_PROTOCOL *pciio; - char *ev, *p; - EFI_STATUS status; - ssize_t offset; - uint64_t fbaddr; - uint32_t horiz, vert, stride; - uint32_t np, depth, refresh; - - status = uga->GetMode(uga, &horiz, &vert, &depth, &refresh); - if (EFI_ERROR(status)) - return (1); - efifb->fb_height = vert; - efifb->fb_width = horiz; - /* Paranoia... */ - if (efifb->fb_height == 0 || efifb->fb_width == 0) - return (1); - - /* The color masks are fixed AFAICT. */ - efifb_mask_from_pixfmt(efifb, PixelBlueGreenRedReserved8BitPerColor, - NULL); - - /* pciio can be NULL on return! */ - pciio = efifb_uga_get_pciio(); - - /* Try to find the frame buffer. */ - status = efifb_uga_locate_framebuffer(pciio, &efifb->fb_addr, - &efifb->fb_size); - if (EFI_ERROR(status)) { - efifb->fb_addr = 0; - efifb->fb_size = 0; - } - - /* - * There's no reliable way to detect the frame buffer or the - * offset within the frame buffer of the visible region, nor - * the stride. Our only option is to look at the system and - * fill in the blanks based on that. Luckily, UGA was mostly - * only used on Apple hardware. - */ - offset = -1; - ev = getenv("smbios.system.maker"); - if (ev != NULL && !strcmp(ev, "Apple Inc.")) { - ev = getenv("smbios.system.product"); - if (ev != NULL && !strcmp(ev, "iMac7,1")) { - /* These are the expected values we should have. */ - horiz = 1680; - vert = 1050; - fbaddr = 0xc0000000; - /* These are the missing bits. */ - offset = 0x10000; - stride = 1728; - } else if (ev != NULL && !strcmp(ev, "MacBook3,1")) { - /* These are the expected values we should have. */ - horiz = 1280; - vert = 800; - fbaddr = 0xc0000000; - /* These are the missing bits. */ - offset = 0x0; - stride = 2048; - } - } - - /* - * If this is hardware we know, make sure that it looks familiar - * before we accept our hardcoded values. - */ - if (offset >= 0 && efifb->fb_width == horiz && - efifb->fb_height == vert && efifb->fb_addr == fbaddr) { - efifb->fb_addr += offset; - efifb->fb_size -= offset; - efifb->fb_stride = stride; - return (0); - } else if (offset >= 0) { - printf("Hardware make/model known, but graphics not " - "as expected.\n"); - printf("Console may not work!\n"); - } - - /* - * The stride is equal or larger to the width. Often it's the - * next larger power of two. We'll start with that... - */ - efifb->fb_stride = efifb->fb_width; - do { - np = efifb->fb_stride & (efifb->fb_stride - 1); - if (np) { - efifb->fb_stride |= (np - 1); - efifb->fb_stride++; - } - } while (np); - - ev = getenv("hw.efifb.address"); - if (ev == NULL) { - if (efifb->fb_addr == 0) { - printf("Please set hw.efifb.address and " - "hw.efifb.stride.\n"); - return (1); - } - - /* - * The visible part of the frame buffer may not start at - * offset 0, so try to detect it. Note that we may not - * always be able to read from the frame buffer, which - * means that we may not be able to detect anything. In - * that case, we would take a long time scanning for a - * pixel change in the frame buffer, which would have it - * appear that we're hanging, so we limit the scan to - * 1/256th of the frame buffer. This number is mostly - * based on PR 202730 and the fact that on a MacBoook, - * where we can't read from the frame buffer the offset - * of the visible region is 0. In short: we want to scan - * enough to handle all adapters that have an offset - * larger than 0 and we want to scan as little as we can - * to not appear to hang when we can't read from the - * frame buffer. - */ - offset = efifb_uga_find_pixel(uga, 0, pciio, efifb->fb_addr, - efifb->fb_size >> 8); - if (offset == -1) { - printf("Unable to reliably detect frame buffer.\n"); - } else if (offset > 0) { - efifb->fb_addr += offset; - efifb->fb_size -= offset; - } - } else { - offset = 0; - efifb->fb_size = efifb->fb_height * efifb->fb_stride * 4; - efifb->fb_addr = strtoul(ev, &p, 0); - if (*p != '\0') - return (1); - } - - ev = getenv("hw.efifb.stride"); - if (ev == NULL) { - if (pciio != NULL && offset != -1) { - /* Determine the stride. */ - offset = efifb_uga_find_pixel(uga, 1, pciio, - efifb->fb_addr, horiz * 8); - if (offset != -1) - efifb->fb_stride = offset >> 2; - } else { - printf("Unable to reliably detect the stride.\n"); - } - } else { - efifb->fb_stride = strtoul(ev, &p, 0); - if (*p != '\0') - return (1); - } - - /* - * We finalized on the stride, so recalculate the size of the - * frame buffer. - */ - efifb->fb_size = efifb->fb_height * efifb->fb_stride * 4; - return (0); -} - -int -efi_find_framebuffer(struct efi_fb *efifb) -{ - EFI_GRAPHICS_OUTPUT *gop; - EFI_UGA_DRAW_PROTOCOL *uga; - EFI_STATUS status; - - status = BS->LocateProtocol(&gop_guid, NULL, (VOID **)&gop); - if (status == EFI_SUCCESS) - return (efifb_from_gop(efifb, gop->Mode, gop->Mode->Info)); - - status = BS->LocateProtocol(&uga_guid, NULL, (VOID **)&uga); - if (status == EFI_SUCCESS) - return (efifb_from_uga(efifb, uga)); - - return (1); -} - -static void -print_efifb(int mode, struct efi_fb *efifb, int verbose) -{ - u_int depth; - - if (mode >= 0) - printf("mode %d: ", mode); - depth = efifb_color_depth(efifb); - printf("%ux%ux%u, stride=%u", efifb->fb_width, efifb->fb_height, - depth, efifb->fb_stride); - if (verbose) { - printf("\n frame buffer: address=%jx, size=%jx", - (uintmax_t)efifb->fb_addr, (uintmax_t)efifb->fb_size); - printf("\n color mask: R=%08x, G=%08x, B=%08x\n", - efifb->fb_mask_red, efifb->fb_mask_green, - efifb->fb_mask_blue); - } -} - -COMMAND_SET(gop, "gop", "graphics output protocol", command_gop); - -static int -command_gop(int argc, char *argv[]) -{ - struct efi_fb efifb; - EFI_GRAPHICS_OUTPUT *gop; - EFI_STATUS status; - u_int mode; - - status = BS->LocateProtocol(&gop_guid, NULL, (VOID **)&gop); - if (EFI_ERROR(status)) { - snprintf(command_errbuf, sizeof(command_errbuf), - "%s: Graphics Output Protocol not present (error=%lu)", - argv[0], EFI_ERROR_CODE(status)); - return (CMD_ERROR); - } - - if (argc < 2) - goto usage; - - if (!strcmp(argv[1], "set")) { - char *cp; - - if (argc != 3) - goto usage; - mode = strtol(argv[2], &cp, 0); - if (cp[0] != '\0') { - sprintf(command_errbuf, "mode is an integer"); - return (CMD_ERROR); - } - status = gop->SetMode(gop, mode); - if (EFI_ERROR(status)) { - snprintf(command_errbuf, sizeof(command_errbuf), - "%s: Unable to set mode to %u (error=%lu)", - argv[0], mode, EFI_ERROR_CODE(status)); - return (CMD_ERROR); - } - } else if (!strcmp(argv[1], "get")) { - if (argc != 2) - goto usage; - efifb_from_gop(&efifb, gop->Mode, gop->Mode->Info); - print_efifb(gop->Mode->Mode, &efifb, 1); - printf("\n"); - } else if (!strcmp(argv[1], "list")) { - EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info; - UINTN infosz; - - if (argc != 2) - goto usage; - pager_open(); - for (mode = 0; mode < gop->Mode->MaxMode; mode++) { - status = gop->QueryMode(gop, mode, &infosz, &info); - if (EFI_ERROR(status)) - continue; - efifb_from_gop(&efifb, gop->Mode, info); - print_efifb(mode, &efifb, 0); - if (pager_output("\n")) - break; - } - pager_close(); - } - return (CMD_OK); - - usage: - snprintf(command_errbuf, sizeof(command_errbuf), - "usage: %s [list | get | set ]", argv[0]); - return (CMD_ERROR); -} - -COMMAND_SET(uga, "uga", "universal graphics adapter", command_uga); - -static int -command_uga(int argc, char *argv[]) -{ - struct efi_fb efifb; - EFI_UGA_DRAW_PROTOCOL *uga; - EFI_STATUS status; - - status = BS->LocateProtocol(&uga_guid, NULL, (VOID **)&uga); - if (EFI_ERROR(status)) { - snprintf(command_errbuf, sizeof(command_errbuf), - "%s: UGA Protocol not present (error=%lu)", - argv[0], EFI_ERROR_CODE(status)); - return (CMD_ERROR); - } - - if (argc != 1) - goto usage; - - if (efifb_from_uga(&efifb, uga) != CMD_OK) { - snprintf(command_errbuf, sizeof(command_errbuf), - "%s: Unable to get UGA information", argv[0]); - return (CMD_ERROR); - } - - print_efifb(-1, &efifb, 1); - printf("\n"); - return (CMD_OK); - - usage: - snprintf(command_errbuf, sizeof(command_errbuf), "usage: %s", argv[0]); - return (CMD_ERROR); -} Index: head/sys/boot/efi/loader/bootinfo.c =================================================================== --- head/sys/boot/efi/loader/bootinfo.c +++ head/sys/boot/efi/loader/bootinfo.c @@ -48,9 +48,10 @@ #if defined(__amd64__) #include -#include "framebuffer.h" #endif +#include "framebuffer.h" + #if defined(LOADER_FDT_SUPPORT) #include #endif @@ -247,12 +248,12 @@ UINT32 mmver; struct efi_map_header *efihdr; -#if defined(__amd64__) +#if defined(__amd64__) || defined(__aarch64__) struct efi_fb efifb; if (efi_find_framebuffer(&efifb) == 0) { printf("EFI framebuffer information:\n"); - printf("addr, size 0x%lx, 0x%lx\n", efifb.fb_addr, + printf("addr, size 0x%jx, 0x%jx\n", efifb.fb_addr, efifb.fb_size); printf("dimensions %d x %d\n", efifb.fb_width, efifb.fb_height); Index: head/sys/boot/efi/loader/framebuffer.h =================================================================== --- head/sys/boot/efi/loader/framebuffer.h +++ head/sys/boot/efi/loader/framebuffer.h @@ -0,0 +1,36 @@ +/*- + * Copyright (c) 2013 The FreeBSD Foundation + * All rights reserved. + * + * This software was developed by Benno Rice under sponsorship from + * the FreeBSD Foundation. + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#ifndef _EFIFB_H_ +#define _EFIFB_H_ + +int efi_find_framebuffer(struct efi_fb *efifb); + +#endif /* _EFIFB_H_ */ Index: head/sys/boot/efi/loader/framebuffer.c =================================================================== --- head/sys/boot/efi/loader/framebuffer.c +++ head/sys/boot/efi/loader/framebuffer.c @@ -0,0 +1,568 @@ +/*- + * Copyright (c) 2013 The FreeBSD Foundation + * All rights reserved. + * + * This software was developed by Benno Rice under sponsorship from + * the FreeBSD Foundation. + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include +__FBSDID("$FreeBSD$"); + +#include +#include +#include + +#include +#include +#include +#include +#include + +#include "framebuffer.h" + +static EFI_GUID gop_guid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID; +static EFI_GUID pciio_guid = EFI_PCI_IO_PROTOCOL_GUID; +static EFI_GUID uga_guid = EFI_UGA_DRAW_PROTOCOL_GUID; + +static u_int +efifb_color_depth(struct efi_fb *efifb) +{ + uint32_t mask; + u_int depth; + + mask = efifb->fb_mask_red | efifb->fb_mask_green | + efifb->fb_mask_blue | efifb->fb_mask_reserved; + if (mask == 0) + return (0); + for (depth = 1; mask != 1; depth++) + mask >>= 1; + return (depth); +} + +static int +efifb_mask_from_pixfmt(struct efi_fb *efifb, EFI_GRAPHICS_PIXEL_FORMAT pixfmt, + EFI_PIXEL_BITMASK *pixinfo) +{ + int result; + + result = 0; + switch (pixfmt) { + case PixelRedGreenBlueReserved8BitPerColor: + efifb->fb_mask_red = 0x000000ff; + efifb->fb_mask_green = 0x0000ff00; + efifb->fb_mask_blue = 0x00ff0000; + efifb->fb_mask_reserved = 0xff000000; + break; + case PixelBlueGreenRedReserved8BitPerColor: + efifb->fb_mask_red = 0x00ff0000; + efifb->fb_mask_green = 0x0000ff00; + efifb->fb_mask_blue = 0x000000ff; + efifb->fb_mask_reserved = 0xff000000; + break; + case PixelBitMask: + efifb->fb_mask_red = pixinfo->RedMask; + efifb->fb_mask_green = pixinfo->GreenMask; + efifb->fb_mask_blue = pixinfo->BlueMask; + efifb->fb_mask_reserved = pixinfo->ReservedMask; + break; + default: + result = 1; + break; + } + return (result); +} + +static int +efifb_from_gop(struct efi_fb *efifb, EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *mode, + EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info) +{ + int result; + + efifb->fb_addr = mode->FrameBufferBase; + efifb->fb_size = mode->FrameBufferSize; + efifb->fb_height = info->VerticalResolution; + efifb->fb_width = info->HorizontalResolution; + efifb->fb_stride = info->PixelsPerScanLine; + result = efifb_mask_from_pixfmt(efifb, info->PixelFormat, + &info->PixelInformation); + return (result); +} + +static ssize_t +efifb_uga_find_pixel(EFI_UGA_DRAW_PROTOCOL *uga, u_int line, + EFI_PCI_IO_PROTOCOL *pciio, uint64_t addr, uint64_t size) +{ + EFI_UGA_PIXEL pix0, pix1; + uint8_t *data1, *data2; + size_t count, maxcount = 1024; + ssize_t ofs; + EFI_STATUS status; + u_int idx; + + status = uga->Blt(uga, &pix0, EfiUgaVideoToBltBuffer, + 0, line, 0, 0, 1, 1, 0); + if (EFI_ERROR(status)) { + printf("UGA BLT operation failed (video->buffer)"); + return (-1); + } + pix1.Red = ~pix0.Red; + pix1.Green = ~pix0.Green; + pix1.Blue = ~pix0.Blue; + pix1.Reserved = 0; + + data1 = calloc(maxcount, 2); + if (data1 == NULL) { + printf("Unable to allocate memory"); + return (-1); + } + data2 = data1 + maxcount; + + ofs = 0; + while (size > 0) { + count = min(size, maxcount); + + status = pciio->Mem.Read(pciio, EfiPciIoWidthUint32, + EFI_PCI_IO_PASS_THROUGH_BAR, addr + ofs, count >> 2, + data1); + if (EFI_ERROR(status)) { + printf("Error reading frame buffer (before)"); + goto fail; + } + status = uga->Blt(uga, &pix1, EfiUgaBltBufferToVideo, + 0, 0, 0, line, 1, 1, 0); + if (EFI_ERROR(status)) { + printf("UGA BLT operation failed (modify)"); + goto fail; + } + status = pciio->Mem.Read(pciio, EfiPciIoWidthUint32, + EFI_PCI_IO_PASS_THROUGH_BAR, addr + ofs, count >> 2, + data2); + if (EFI_ERROR(status)) { + printf("Error reading frame buffer (after)"); + goto fail; + } + status = uga->Blt(uga, &pix0, EfiUgaBltBufferToVideo, + 0, 0, 0, line, 1, 1, 0); + if (EFI_ERROR(status)) { + printf("UGA BLT operation failed (restore)"); + goto fail; + } + for (idx = 0; idx < count; idx++) { + if (data1[idx] != data2[idx]) { + free(data1); + return (ofs + (idx & ~3)); + } + } + ofs += count; + size -= count; + } + printf("No change detected in frame buffer"); + + fail: + printf(" -- error %lu\n", EFI_ERROR_CODE(status)); + free(data1); + return (-1); +} + +static EFI_PCI_IO_PROTOCOL * +efifb_uga_get_pciio(void) +{ + EFI_PCI_IO_PROTOCOL *pciio; + EFI_HANDLE *buf, *hp; + EFI_STATUS status; + UINTN bufsz; + + /* Get all handles that support the UGA protocol. */ + bufsz = 0; + status = BS->LocateHandle(ByProtocol, &uga_guid, NULL, &bufsz, NULL); + if (status != EFI_BUFFER_TOO_SMALL) + return (NULL); + buf = malloc(bufsz); + status = BS->LocateHandle(ByProtocol, &uga_guid, NULL, &bufsz, buf); + if (status != EFI_SUCCESS) { + free(buf); + return (NULL); + } + bufsz /= sizeof(EFI_HANDLE); + + /* Get the PCI I/O interface of the first handle that supports it. */ + pciio = NULL; + for (hp = buf; hp < buf + bufsz; hp++) { + status = BS->HandleProtocol(*hp, &pciio_guid, (void **)&pciio); + if (status == EFI_SUCCESS) { + free(buf); + return (pciio); + } + } + free(buf); + return (NULL); +} + +static EFI_STATUS +efifb_uga_locate_framebuffer(EFI_PCI_IO_PROTOCOL *pciio, uint64_t *addrp, + uint64_t *sizep) +{ + uint8_t *resattr; + uint64_t addr, size; + EFI_STATUS status; + u_int bar; + + if (pciio == NULL) + return (EFI_DEVICE_ERROR); + + /* Attempt to get the frame buffer address (imprecise). */ + *addrp = 0; + *sizep = 0; + for (bar = 0; bar < 6; bar++) { + status = pciio->GetBarAttributes(pciio, bar, NULL, + (void **)&resattr); + if (status != EFI_SUCCESS) + continue; + /* XXX magic offsets and constants. */ + if (resattr[0] == 0x87 && resattr[3] == 0) { + /* 32-bit address space descriptor (MEMIO) */ + addr = le32dec(resattr + 10); + size = le32dec(resattr + 22); + } else if (resattr[0] == 0x8a && resattr[3] == 0) { + /* 64-bit address space descriptor (MEMIO) */ + addr = le64dec(resattr + 14); + size = le64dec(resattr + 38); + } else { + addr = 0; + size = 0; + } + BS->FreePool(resattr); + if (addr == 0 || size == 0) + continue; + + /* We assume the largest BAR is the frame buffer. */ + if (size > *sizep) { + *addrp = addr; + *sizep = size; + } + } + return ((*addrp == 0 || *sizep == 0) ? EFI_DEVICE_ERROR : 0); +} + +static int +efifb_from_uga(struct efi_fb *efifb, EFI_UGA_DRAW_PROTOCOL *uga) +{ + EFI_PCI_IO_PROTOCOL *pciio; + char *ev, *p; + EFI_STATUS status; + ssize_t offset; + uint64_t fbaddr; + uint32_t horiz, vert, stride; + uint32_t np, depth, refresh; + + status = uga->GetMode(uga, &horiz, &vert, &depth, &refresh); + if (EFI_ERROR(status)) + return (1); + efifb->fb_height = vert; + efifb->fb_width = horiz; + /* Paranoia... */ + if (efifb->fb_height == 0 || efifb->fb_width == 0) + return (1); + + /* The color masks are fixed AFAICT. */ + efifb_mask_from_pixfmt(efifb, PixelBlueGreenRedReserved8BitPerColor, + NULL); + + /* pciio can be NULL on return! */ + pciio = efifb_uga_get_pciio(); + + /* Try to find the frame buffer. */ + status = efifb_uga_locate_framebuffer(pciio, &efifb->fb_addr, + &efifb->fb_size); + if (EFI_ERROR(status)) { + efifb->fb_addr = 0; + efifb->fb_size = 0; + } + + /* + * There's no reliable way to detect the frame buffer or the + * offset within the frame buffer of the visible region, nor + * the stride. Our only option is to look at the system and + * fill in the blanks based on that. Luckily, UGA was mostly + * only used on Apple hardware. + */ + offset = -1; + ev = getenv("smbios.system.maker"); + if (ev != NULL && !strcmp(ev, "Apple Inc.")) { + ev = getenv("smbios.system.product"); + if (ev != NULL && !strcmp(ev, "iMac7,1")) { + /* These are the expected values we should have. */ + horiz = 1680; + vert = 1050; + fbaddr = 0xc0000000; + /* These are the missing bits. */ + offset = 0x10000; + stride = 1728; + } else if (ev != NULL && !strcmp(ev, "MacBook3,1")) { + /* These are the expected values we should have. */ + horiz = 1280; + vert = 800; + fbaddr = 0xc0000000; + /* These are the missing bits. */ + offset = 0x0; + stride = 2048; + } + } + + /* + * If this is hardware we know, make sure that it looks familiar + * before we accept our hardcoded values. + */ + if (offset >= 0 && efifb->fb_width == horiz && + efifb->fb_height == vert && efifb->fb_addr == fbaddr) { + efifb->fb_addr += offset; + efifb->fb_size -= offset; + efifb->fb_stride = stride; + return (0); + } else if (offset >= 0) { + printf("Hardware make/model known, but graphics not " + "as expected.\n"); + printf("Console may not work!\n"); + } + + /* + * The stride is equal or larger to the width. Often it's the + * next larger power of two. We'll start with that... + */ + efifb->fb_stride = efifb->fb_width; + do { + np = efifb->fb_stride & (efifb->fb_stride - 1); + if (np) { + efifb->fb_stride |= (np - 1); + efifb->fb_stride++; + } + } while (np); + + ev = getenv("hw.efifb.address"); + if (ev == NULL) { + if (efifb->fb_addr == 0) { + printf("Please set hw.efifb.address and " + "hw.efifb.stride.\n"); + return (1); + } + + /* + * The visible part of the frame buffer may not start at + * offset 0, so try to detect it. Note that we may not + * always be able to read from the frame buffer, which + * means that we may not be able to detect anything. In + * that case, we would take a long time scanning for a + * pixel change in the frame buffer, which would have it + * appear that we're hanging, so we limit the scan to + * 1/256th of the frame buffer. This number is mostly + * based on PR 202730 and the fact that on a MacBoook, + * where we can't read from the frame buffer the offset + * of the visible region is 0. In short: we want to scan + * enough to handle all adapters that have an offset + * larger than 0 and we want to scan as little as we can + * to not appear to hang when we can't read from the + * frame buffer. + */ + offset = efifb_uga_find_pixel(uga, 0, pciio, efifb->fb_addr, + efifb->fb_size >> 8); + if (offset == -1) { + printf("Unable to reliably detect frame buffer.\n"); + } else if (offset > 0) { + efifb->fb_addr += offset; + efifb->fb_size -= offset; + } + } else { + offset = 0; + efifb->fb_size = efifb->fb_height * efifb->fb_stride * 4; + efifb->fb_addr = strtoul(ev, &p, 0); + if (*p != '\0') + return (1); + } + + ev = getenv("hw.efifb.stride"); + if (ev == NULL) { + if (pciio != NULL && offset != -1) { + /* Determine the stride. */ + offset = efifb_uga_find_pixel(uga, 1, pciio, + efifb->fb_addr, horiz * 8); + if (offset != -1) + efifb->fb_stride = offset >> 2; + } else { + printf("Unable to reliably detect the stride.\n"); + } + } else { + efifb->fb_stride = strtoul(ev, &p, 0); + if (*p != '\0') + return (1); + } + + /* + * We finalized on the stride, so recalculate the size of the + * frame buffer. + */ + efifb->fb_size = efifb->fb_height * efifb->fb_stride * 4; + return (0); +} + +int +efi_find_framebuffer(struct efi_fb *efifb) +{ + EFI_GRAPHICS_OUTPUT *gop; + EFI_UGA_DRAW_PROTOCOL *uga; + EFI_STATUS status; + + status = BS->LocateProtocol(&gop_guid, NULL, (VOID **)&gop); + if (status == EFI_SUCCESS) + return (efifb_from_gop(efifb, gop->Mode, gop->Mode->Info)); + + status = BS->LocateProtocol(&uga_guid, NULL, (VOID **)&uga); + if (status == EFI_SUCCESS) + return (efifb_from_uga(efifb, uga)); + + return (1); +} + +static void +print_efifb(int mode, struct efi_fb *efifb, int verbose) +{ + u_int depth; + + if (mode >= 0) + printf("mode %d: ", mode); + depth = efifb_color_depth(efifb); + printf("%ux%ux%u, stride=%u", efifb->fb_width, efifb->fb_height, + depth, efifb->fb_stride); + if (verbose) { + printf("\n frame buffer: address=%jx, size=%jx", + (uintmax_t)efifb->fb_addr, (uintmax_t)efifb->fb_size); + printf("\n color mask: R=%08x, G=%08x, B=%08x\n", + efifb->fb_mask_red, efifb->fb_mask_green, + efifb->fb_mask_blue); + } +} + +COMMAND_SET(gop, "gop", "graphics output protocol", command_gop); + +static int +command_gop(int argc, char *argv[]) +{ + struct efi_fb efifb; + EFI_GRAPHICS_OUTPUT *gop; + EFI_STATUS status; + u_int mode; + + status = BS->LocateProtocol(&gop_guid, NULL, (VOID **)&gop); + if (EFI_ERROR(status)) { + snprintf(command_errbuf, sizeof(command_errbuf), + "%s: Graphics Output Protocol not present (error=%lu)", + argv[0], EFI_ERROR_CODE(status)); + return (CMD_ERROR); + } + + if (argc < 2) + goto usage; + + if (!strcmp(argv[1], "set")) { + char *cp; + + if (argc != 3) + goto usage; + mode = strtol(argv[2], &cp, 0); + if (cp[0] != '\0') { + sprintf(command_errbuf, "mode is an integer"); + return (CMD_ERROR); + } + status = gop->SetMode(gop, mode); + if (EFI_ERROR(status)) { + snprintf(command_errbuf, sizeof(command_errbuf), + "%s: Unable to set mode to %u (error=%lu)", + argv[0], mode, EFI_ERROR_CODE(status)); + return (CMD_ERROR); + } + } else if (!strcmp(argv[1], "get")) { + if (argc != 2) + goto usage; + efifb_from_gop(&efifb, gop->Mode, gop->Mode->Info); + print_efifb(gop->Mode->Mode, &efifb, 1); + printf("\n"); + } else if (!strcmp(argv[1], "list")) { + EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info; + UINTN infosz; + + if (argc != 2) + goto usage; + pager_open(); + for (mode = 0; mode < gop->Mode->MaxMode; mode++) { + status = gop->QueryMode(gop, mode, &infosz, &info); + if (EFI_ERROR(status)) + continue; + efifb_from_gop(&efifb, gop->Mode, info); + print_efifb(mode, &efifb, 0); + if (pager_output("\n")) + break; + } + pager_close(); + } + return (CMD_OK); + + usage: + snprintf(command_errbuf, sizeof(command_errbuf), + "usage: %s [list | get | set ]", argv[0]); + return (CMD_ERROR); +} + +COMMAND_SET(uga, "uga", "universal graphics adapter", command_uga); + +static int +command_uga(int argc, char *argv[]) +{ + struct efi_fb efifb; + EFI_UGA_DRAW_PROTOCOL *uga; + EFI_STATUS status; + + status = BS->LocateProtocol(&uga_guid, NULL, (VOID **)&uga); + if (EFI_ERROR(status)) { + snprintf(command_errbuf, sizeof(command_errbuf), + "%s: UGA Protocol not present (error=%lu)", + argv[0], EFI_ERROR_CODE(status)); + return (CMD_ERROR); + } + + if (argc != 1) + goto usage; + + if (efifb_from_uga(&efifb, uga) != CMD_OK) { + snprintf(command_errbuf, sizeof(command_errbuf), + "%s: Unable to get UGA information", argv[0]); + return (CMD_ERROR); + } + + print_efifb(-1, &efifb, 1); + printf("\n"); + return (CMD_OK); + + usage: + snprintf(command_errbuf, sizeof(command_errbuf), "usage: %s", argv[0]); + return (CMD_ERROR); +}