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[src/trunk]: src/sys/arch Support early FB console attachment when booting wi...



details:   https://anonhg.NetBSD.org/src/rev/b4dda58d7b5e
branches:  trunk
changeset: 955752:b4dda58d7b5e
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Sat Oct 10 15:25:30 2020 +0000

description:
Support early FB console attachment when booting with a devicetree
(non-ACPI mode). Inform the pciconf code about the framebuffer to
prevent pciconf from changing resources out from under us when framebuffer
memory is in VRAM.

diffstat:

 sys/arch/arm/acpi/acpi_platform.c |   19 +--
 sys/arch/arm/acpi/acpi_simplefb.c |  215 -----------------------------------
 sys/arch/arm/acpi/acpi_simplefb.h |   37 ------
 sys/arch/arm/acpi/files.acpi      |    3 +-
 sys/arch/arm/fdt/arm_simplefb.c   |  233 ++++++++++++++++++++++++++++++++++++++
 sys/arch/arm/fdt/arm_simplefb.h   |   37 ++++++
 sys/arch/arm/fdt/files.fdt        |    3 +-
 sys/arch/evbarm/fdt/fdt_machdep.c |   19 ++-
 8 files changed, 291 insertions(+), 275 deletions(-)

diffs (truncated from 679 to 300 lines):

diff -r 862ea6a02d32 -r b4dda58d7b5e sys/arch/arm/acpi/acpi_platform.c
--- a/sys/arch/arm/acpi/acpi_platform.c Sat Oct 10 15:22:15 2020 +0000
+++ b/sys/arch/arm/acpi/acpi_platform.c Sat Oct 10 15:25:30 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: acpi_platform.c,v 1.20 2020/09/28 11:54:22 jmcneill Exp $ */
+/* $NetBSD: acpi_platform.c,v 1.21 2020/10/10 15:25:31 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -31,13 +31,11 @@
 
 #include "com.h"
 #include "plcom.h"
-#include "wsdisplay.h"
-#include "genfb.h"
 #include "opt_efi.h"
 #include "opt_multiprocessor.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: acpi_platform.c,v 1.20 2020/09/28 11:54:22 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: acpi_platform.c,v 1.21 2020/10/10 15:25:31 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -73,10 +71,6 @@
 #include <dev/pci/pucvar.h>
 #endif
 
-#if NWSDISPLAY > 0 && NGENFB > 0
-#include <arm/acpi/acpi_simplefb.h>
-#endif
-
 #ifdef EFI_RUNTIME
 #include <arm/arm/efi_runtime.h>
 #endif
@@ -247,15 +241,6 @@
 static void
 acpi_platform_device_register(device_t self, void *aux)
 {
-#if NWSDISPLAY > 0 && NGENFB > 0
-       if (device_is_a(self, "armfdt")) {
-               /*
-                * Setup framebuffer console, if present.
-                */
-               acpi_simplefb_preattach();
-       }
-#endif
-
 #if NCOM > 0
        prop_dictionary_t prop = device_properties(self);
 
diff -r 862ea6a02d32 -r b4dda58d7b5e sys/arch/arm/acpi/acpi_simplefb.c
--- a/sys/arch/arm/acpi/acpi_simplefb.c Sat Oct 10 15:22:15 2020 +0000
+++ /dev/null   Thu Jan 01 00:00:00 1970 +0000
@@ -1,215 +0,0 @@
-/* $NetBSD: acpi_simplefb.c,v 1.2 2020/01/24 10:49:41 jmcneill Exp $ */
-
-/*-
- * Copyright (c) 2019 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Jared McNeill <jmcneill%invisible.ca@localhost>.
- *
- * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: acpi_simplefb.c,v 1.2 2020/01/24 10:49:41 jmcneill Exp $");
-
-#include <sys/param.h>
-#include <sys/bus.h>
-#include <sys/cpu.h>
-#include <sys/device.h>
-
-#include <dev/fdt/fdtvar.h>
-#include <arm/fdt/arm_fdtvar.h>
-
-#include <dev/wscons/wsconsio.h>
-#include <dev/wscons/wsdisplayvar.h>
-#include <dev/rasops/rasops.h>
-#include <dev/wsfont/wsfont.h>
-#include <dev/wscons/wsdisplay_vconsvar.h>
-
-#include <arm/acpi/acpi_simplefb.h>
-
-#include <libfdt.h>
-
-extern struct bus_space arm_generic_bs_tag;
-
-static struct acpi_simplefb_softc {
-       uint32_t        sc_width;
-       uint32_t        sc_height;
-       uint32_t        sc_stride;
-       uint16_t        sc_depth;
-       void            *sc_bits;
-} acpi_simplefb_softc;
-
-static struct wsscreen_descr acpi_simplefb_stdscreen = {
-       .name = "std",
-       .ncols = 0,
-       .nrows = 0,
-       .textops = NULL,
-       .fontwidth = 0,
-       .fontheight = 0,
-       .capabilities = 0,
-       .modecookie = NULL
-};
-
-static struct wsdisplay_accessops acpi_simplefb_accessops;
-static struct vcons_data acpi_simplefb_vcons_data;
-static struct vcons_screen acpi_simplefb_screen;
-
-static int
-acpi_simplefb_find_node(void)
-{
-       static const char * simplefb_compatible[] = { "simple-framebuffer", NULL };
-       int chosen_phandle, child;
-
-       chosen_phandle = OF_finddevice("/chosen");
-       if (chosen_phandle == -1)
-               return -1;
-
-       for (child = OF_child(chosen_phandle); child; child = OF_peer(child)) {
-               if (!fdtbus_status_okay(child))
-                       continue;
-               if (!of_match_compatible(child, simplefb_compatible))
-                       continue;
-
-               return child;
-       }
-
-       return -1;
-}
-
-static void
-acpi_simplefb_init_screen(void *cookie, struct vcons_screen *scr,
-    int existing, long *defattr)
-{
-       struct acpi_simplefb_softc * const sc = cookie;
-       struct rasops_info *ri = &scr->scr_ri;
-
-       ri->ri_width = sc->sc_width;
-       ri->ri_height = sc->sc_height;
-       ri->ri_depth = sc->sc_depth;
-       ri->ri_stride = sc->sc_stride;
-       ri->ri_bits = sc->sc_bits;
-       ri->ri_flg = RI_CENTER | RI_FULLCLEAR | RI_CLEAR;
-
-       scr->scr_flags |= VCONS_LOADFONT;
-       scr->scr_flags |= VCONS_DONT_READ;
-
-       rasops_init(ri, ri->ri_height / 8, ri->ri_width / 8);
-       ri->ri_caps = WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_UNDERLINE;
-       rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight,
-           sc->sc_width / ri->ri_font->fontwidth);
-
-       ri->ri_hw = scr;
-}
-
-static int
-acpi_simplefb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, lwp_t *l)
-{
-       return EPASSTHROUGH;
-}
-
-static paddr_t
-acpi_simplefb_mmap(void *v, void *vs, off_t offset, int prot)
-{
-       return -1;
-}
-
-static void
-acpi_simplefb_pollc(void *v, int on)
-{
-}
-
-void
-acpi_simplefb_preattach(void)
-{
-       struct acpi_simplefb_softc * const sc = &acpi_simplefb_softc;
-       struct rasops_info *ri = &acpi_simplefb_screen.scr_ri;
-       bus_space_tag_t bst = &arm_generic_bs_tag;
-       bus_space_handle_t bsh;
-       uint32_t width, height, stride;
-       const char *format;
-       bus_addr_t addr;
-       bus_size_t size;
-       uint16_t depth;
-       long defattr;
-
-       const int phandle = acpi_simplefb_find_node();
-       if (phandle == -1)
-               return;
-
-       if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0 || size == 0)
-               return;
-
-       if (of_getprop_uint32(phandle, "width", &width) != 0 ||
-           of_getprop_uint32(phandle, "height", &height) != 0 ||
-           of_getprop_uint32(phandle, "stride", &stride) != 0 ||
-           (format = fdtbus_get_string(phandle, "format")) == NULL)
-               return;
-
-       if (width == 0 || height == 0)
-               return;
-
-       if (strcmp(format, "a8b8g8r8") == 0 ||
-           strcmp(format, "x8r8g8b8") == 0) {
-               depth = 32;
-       } else if (strcmp(format, "r5g6b5") == 0) {
-               depth = 16;
-       } else {
-               return;
-       }
-
-       if (bus_space_map(bst, addr, size,
-           BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_PREFETCHABLE, &bsh) != 0)
-               return;
-
-       sc->sc_width = width;
-       sc->sc_height = height;
-       sc->sc_depth = depth;
-       sc->sc_stride = stride;
-       sc->sc_bits = bus_space_vaddr(bst, bsh);
-
-       wsfont_init();
-
-       acpi_simplefb_accessops.ioctl = acpi_simplefb_ioctl;
-       acpi_simplefb_accessops.mmap = acpi_simplefb_mmap;
-       acpi_simplefb_accessops.pollc = acpi_simplefb_pollc;
-
-       vcons_init(&acpi_simplefb_vcons_data, sc, &acpi_simplefb_stdscreen,
-               &acpi_simplefb_accessops);
-       acpi_simplefb_vcons_data.init_screen = acpi_simplefb_init_screen;
-       acpi_simplefb_vcons_data.use_intr = 0;
-       vcons_init_screen(&acpi_simplefb_vcons_data, &acpi_simplefb_screen, 1, &defattr);
-       acpi_simplefb_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;    
-
-       if (ri->ri_rows < 1 || ri->ri_cols < 1)
-               return;
-
-       acpi_simplefb_stdscreen.nrows = ri->ri_rows;
-       acpi_simplefb_stdscreen.ncols = ri->ri_cols;
-       acpi_simplefb_stdscreen.textops = &ri->ri_ops;
-       acpi_simplefb_stdscreen.capabilities = ri->ri_caps;
-
-       wsdisplay_preattach(&acpi_simplefb_stdscreen, ri, 0, 0, defattr);
-
-       vcons_replay_msgbuf(&acpi_simplefb_screen);
-}
diff -r 862ea6a02d32 -r b4dda58d7b5e sys/arch/arm/acpi/acpi_simplefb.h
--- a/sys/arch/arm/acpi/acpi_simplefb.h Sat Oct 10 15:22:15 2020 +0000
+++ /dev/null   Thu Jan 01 00:00:00 1970 +0000
@@ -1,37 +0,0 @@
-/* $NetBSD: acpi_simplefb.h,v 1.1 2019/09/22 18:31:59 jmcneill Exp $ */
-
-/*-
- * Copyright (c) 2019 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Jared McNeill <jmcneill%invisible.ca@localhost>.
- *
- * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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



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