diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
commit | f215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch) | |
tree | 6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/Additions/linux/drm/vbox_mode.c | |
parent | Initial commit. (diff) | |
download | virtualbox-upstream/7.0.14-dfsg.tar.xz virtualbox-upstream/7.0.14-dfsg.zip |
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/Additions/linux/drm/vbox_mode.c')
-rw-r--r-- | src/VBox/Additions/linux/drm/vbox_mode.c | 949 |
1 files changed, 949 insertions, 0 deletions
diff --git a/src/VBox/Additions/linux/drm/vbox_mode.c b/src/VBox/Additions/linux/drm/vbox_mode.c new file mode 100644 index 00000000..bfe13ced --- /dev/null +++ b/src/VBox/Additions/linux/drm/vbox_mode.c @@ -0,0 +1,949 @@ +/* $Id: vbox_mode.c $ */ +/** @file + * VirtualBox Additions Linux kernel video driver + */ + +/* + * Copyright (C) 2013-2023 Oracle and/or its affiliates. + * This file is based on ast_mode.c + * Copyright 2012 Red Hat Inc. + * Parts based on xf86-video-ast + * Copyright (c) 2005 ASPEED Technology Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + */ +/* + * Authors: Dave Airlie <airlied@redhat.com> + * Michael Thayer <michael.thayer@oracle.com, + * Hans de Goede <hdegoede@redhat.com> + */ +#include "vbox_drv.h" +#include <linux/export.h> +#include <drm/drm_crtc_helper.h> +#if RTLNX_VER_MIN(6,3,0) || RTLNX_RHEL_RANGE(8,9, 8,99) || RTLNX_RHEL_RANGE(9,3, 9,99) +# include <drm/drm_modeset_helper_vtables.h> +# include <drm/drm_modeset_helper.h> +#endif +#if RTLNX_VER_MIN(3,18,0) || RTLNX_RHEL_MAJ_PREREQ(7,2) +# include <drm/drm_plane_helper.h> +#endif +#if RTLNX_VER_MIN(5,1,0) || RTLNX_RHEL_MAJ_PREREQ(8,1) +# include <drm/drm_probe_helper.h> +#endif + +#if RTLNX_VER_MIN(6,0,0) || RTLNX_RHEL_RANGE(8,8, 8,99) || RTLNX_RHEL_MAJ_PREREQ(9,2) || RTLNX_SUSE_MAJ_PREREQ(15,5) +# include <drm/drm_edid.h> +#endif + +#include "VBoxVideo.h" + +static int vbox_cursor_set2(struct drm_crtc *crtc, struct drm_file *file_priv, + u32 handle, u32 width, u32 height, + s32 hot_x, s32 hot_y); +static int vbox_cursor_move(struct drm_crtc *crtc, int x, int y); + +/** + * Set a graphics mode. Poke any required values into registers, do an HGSMI + * mode set and tell the host we support advanced graphics functions. + */ +static void vbox_do_modeset(struct drm_crtc *crtc, + const struct drm_display_mode *mode) +{ + struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); + struct vbox_private *vbox; + int width, height, bpp, pitch; + u16 flags; + s32 x_offset, y_offset; + + vbox = crtc->dev->dev_private; + width = mode->hdisplay ? mode->hdisplay : 640; + height = mode->vdisplay ? mode->vdisplay : 480; +#if RTLNX_VER_MIN(4,11,0) || RTLNX_RHEL_MAJ_PREREQ(7,5) + bpp = crtc->enabled ? CRTC_FB(crtc)->format->cpp[0] * 8 : 32; + pitch = crtc->enabled ? CRTC_FB(crtc)->pitches[0] : width * bpp / 8; +#elif RTLNX_VER_MIN(3,3,0) + bpp = crtc->enabled ? CRTC_FB(crtc)->bits_per_pixel : 32; + pitch = crtc->enabled ? CRTC_FB(crtc)->pitches[0] : width * bpp / 8; +#else + bpp = crtc->enabled ? CRTC_FB(crtc)->bits_per_pixel : 32; + pitch = crtc->enabled ? CRTC_FB(crtc)->pitch : width * bpp / 8; +#endif + x_offset = vbox->single_framebuffer ? crtc->x : vbox_crtc->x_hint; + y_offset = vbox->single_framebuffer ? crtc->y : vbox_crtc->y_hint; + + /* + * This is the old way of setting graphics modes. It assumed one screen + * and a frame-buffer at the start of video RAM. On older versions of + * VirtualBox, certain parts of the code still assume that the first + * screen is programmed this way, so try to fake it. + */ + if (vbox_crtc->crtc_id == 0 && crtc->enabled && + vbox_crtc->fb_offset / pitch < 0xffff - crtc->y && + vbox_crtc->fb_offset % (bpp / 8) == 0) + VBoxVideoSetModeRegisters( + width, height, pitch * 8 / bpp, +#if RTLNX_VER_MIN(4,11,0) || RTLNX_RHEL_MAJ_PREREQ(7,5) + CRTC_FB(crtc)->format->cpp[0] * 8, +#else + CRTC_FB(crtc)->bits_per_pixel, +#endif + 0, + vbox_crtc->fb_offset % pitch / bpp * 8 + crtc->x, + vbox_crtc->fb_offset / pitch + crtc->y); + + flags = VBVA_SCREEN_F_ACTIVE; + flags |= (crtc->enabled && !vbox_crtc->blanked) ? + 0 : VBVA_SCREEN_F_BLANK; + flags |= vbox_crtc->disconnected ? VBVA_SCREEN_F_DISABLED : 0; + VBoxHGSMIProcessDisplayInfo(vbox->guest_pool, vbox_crtc->crtc_id, + x_offset, y_offset, vbox_crtc->fb_offset + + crtc->x * bpp / 8 + crtc->y * pitch, + pitch, width, height, + vbox_crtc->blanked ? 0 : bpp, flags); +} + +static void vbox_crtc_dpms(struct drm_crtc *crtc, int mode) +{ + struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); + struct vbox_private *vbox = crtc->dev->dev_private; + + switch (mode) { + case DRM_MODE_DPMS_ON: + vbox_crtc->blanked = false; + /* Restart the refresh timer if necessary. */ + schedule_delayed_work(&vbox->refresh_work, VBOX_REFRESH_PERIOD); + break; + case DRM_MODE_DPMS_STANDBY: + case DRM_MODE_DPMS_SUSPEND: + case DRM_MODE_DPMS_OFF: + vbox_crtc->blanked = true; + break; + } + + mutex_lock(&vbox->hw_mutex); + vbox_do_modeset(crtc, &crtc->hwmode); + mutex_unlock(&vbox->hw_mutex); +} + +static bool vbox_crtc_mode_fixup(struct drm_crtc *crtc, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + return true; +} + +/* + * Try to map the layout of virtual screens to the range of the input device. + * Return true if we need to re-set the crtc modes due to screen offset + * changes. + */ +static bool vbox_set_up_input_mapping(struct vbox_private *vbox) +{ + struct drm_crtc *crtci; + struct drm_connector *connectori; + struct drm_framebuffer *fb1 = NULL; + bool single_framebuffer = true; + bool old_single_framebuffer = vbox->single_framebuffer; + u16 width = 0, height = 0; + + /* + * Are we using an X.Org-style single large frame-buffer for all crtcs? + * If so then screen layout can be deduced from the crtc offsets. + * Same fall-back if this is the fbdev frame-buffer. + */ + list_for_each_entry(crtci, &vbox->dev->mode_config.crtc_list, head) { + if (!fb1) { + fb1 = CRTC_FB(crtci); + if (to_vbox_framebuffer(fb1) == &vbox->fbdev->afb) + break; + } else if (CRTC_FB(crtci) && fb1 != CRTC_FB(crtci)) { + single_framebuffer = false; + } + } + if (single_framebuffer) { + list_for_each_entry(crtci, &vbox->dev->mode_config.crtc_list, + head) { + if (to_vbox_crtc(crtci)->crtc_id != 0) + continue; + + if (!CRTC_FB(crtci)) + break; + vbox->single_framebuffer = true; + vbox->input_mapping_width = CRTC_FB(crtci)->width; + vbox->input_mapping_height = CRTC_FB(crtci)->height; + return old_single_framebuffer != + vbox->single_framebuffer; + } + } + /* Otherwise calculate the total span of all screens. */ + list_for_each_entry(connectori, &vbox->dev->mode_config.connector_list, + head) { + struct vbox_connector *vbox_connector = + to_vbox_connector(connectori); + struct vbox_crtc *vbox_crtc = vbox_connector->vbox_crtc; + + width = max_t(u16, width, vbox_crtc->x_hint + + vbox_connector->mode_hint.width); + height = max_t(u16, height, vbox_crtc->y_hint + + vbox_connector->mode_hint.height); + } + + vbox->single_framebuffer = false; + vbox->input_mapping_width = width; + vbox->input_mapping_height = height; + + return old_single_framebuffer != vbox->single_framebuffer; +} + +static int vbox_crtc_set_base(struct drm_crtc *crtc, + struct drm_framebuffer *old_fb, + struct drm_framebuffer *new_fb, + int x, int y) +{ + struct vbox_private *vbox = crtc->dev->dev_private; + struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); + struct drm_gem_object *obj; + struct vbox_framebuffer *vbox_fb; + struct vbox_bo *bo; + int ret; + u64 gpu_addr; + + vbox_fb = to_vbox_framebuffer(new_fb); + obj = vbox_fb->obj; + bo = gem_to_vbox_bo(obj); + + ret = vbox_bo_reserve(bo, false); + if (ret) + return ret; + + ret = vbox_bo_pin(bo, VBOX_MEM_TYPE_VRAM, &gpu_addr); + vbox_bo_unreserve(bo); + if (ret) + return ret; + + /* Unpin the previous fb. Do this after the new one has been pinned rather + * than before and re-pinning it on failure in case that fails too. */ + if (old_fb) { + vbox_fb = to_vbox_framebuffer(old_fb); + obj = vbox_fb->obj; + bo = gem_to_vbox_bo(obj); + ret = vbox_bo_reserve(bo, false); + /* This should never fail, as no one else should be accessing it and we + * should be running under the modeset locks. */ + if (!ret) { + vbox_bo_unpin(bo); + vbox_bo_unreserve(bo); + } + else + { + DRM_ERROR("unable to lock buffer object: error %d\n", ret); + } + } + + if (&vbox->fbdev->afb == vbox_fb) + vbox_fbdev_set_base(vbox, gpu_addr); + + vbox_crtc->fb_offset = gpu_addr; + if (vbox_set_up_input_mapping(vbox)) { + struct drm_crtc *crtci; + + list_for_each_entry(crtci, &vbox->dev->mode_config.crtc_list, + head) { + vbox_do_modeset(crtci, &crtci->mode); + } + } + + return 0; +} + +static int vbox_crtc_mode_set(struct drm_crtc *crtc, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode, + int x, int y, struct drm_framebuffer *old_fb) +{ + struct vbox_private *vbox = crtc->dev->dev_private; + int ret = vbox_crtc_set_base(crtc, old_fb, CRTC_FB(crtc), x, y); + if (ret) + return ret; + mutex_lock(&vbox->hw_mutex); + vbox_do_modeset(crtc, mode); + VBoxHGSMIUpdateInputMapping(vbox->guest_pool, 0, 0, + vbox->input_mapping_width, + vbox->input_mapping_height); + mutex_unlock(&vbox->hw_mutex); + + return ret; +} + +static int vbox_crtc_page_flip(struct drm_crtc *crtc, + struct drm_framebuffer *fb, +#if RTLNX_VER_MIN(4,12,0) || RTLNX_RHEL_MAJ_PREREQ(7,5) + struct drm_pending_vblank_event *event, + uint32_t page_flip_flags, + struct drm_modeset_acquire_ctx *ctx) +#elif RTLNX_VER_MIN(3,12,0) || RTLNX_RHEL_MAJ_PREREQ(7,0) + struct drm_pending_vblank_event *event, + uint32_t page_flip_flags) +#else + struct drm_pending_vblank_event *event) +#endif +{ + struct vbox_private *vbox = crtc->dev->dev_private; + struct drm_device *drm = vbox->dev; + unsigned long flags; + int rc; + + rc = vbox_crtc_set_base(crtc, CRTC_FB(crtc), fb, 0, 0); + if (rc) + return rc; + + mutex_lock(&vbox->hw_mutex); + vbox_do_modeset(crtc, &crtc->mode); + mutex_unlock(&vbox->hw_mutex); + + spin_lock_irqsave(&drm->event_lock, flags); + + if (event) +#if RTLNX_VER_MIN(3,19,0) || RTLNX_RHEL_MAJ_PREREQ(7,2) + drm_crtc_send_vblank_event(crtc, event); +#else + drm_send_vblank_event(drm, -1, event); +#endif + + spin_unlock_irqrestore(&drm->event_lock, flags); + + return 0; +} + +static void vbox_crtc_disable(struct drm_crtc *crtc) +{ +} + +static void vbox_crtc_prepare(struct drm_crtc *crtc) +{ +} + +static void vbox_crtc_commit(struct drm_crtc *crtc) +{ +} + +static const struct drm_crtc_helper_funcs vbox_crtc_helper_funcs = { + .dpms = vbox_crtc_dpms, + .mode_fixup = vbox_crtc_mode_fixup, + .mode_set = vbox_crtc_mode_set, + .disable = vbox_crtc_disable, + .prepare = vbox_crtc_prepare, + .commit = vbox_crtc_commit, +}; + +static void vbox_crtc_reset(struct drm_crtc *crtc) +{ +} + +static void vbox_crtc_destroy(struct drm_crtc *crtc) +{ + drm_crtc_cleanup(crtc); + kfree(crtc); +} + +static const struct drm_crtc_funcs vbox_crtc_funcs = { + .cursor_move = vbox_cursor_move, + .cursor_set2 = vbox_cursor_set2, + .reset = vbox_crtc_reset, + .set_config = drm_crtc_helper_set_config, + /* .gamma_set = vbox_crtc_gamma_set, */ + .page_flip = vbox_crtc_page_flip, + .destroy = vbox_crtc_destroy, +}; + +static struct vbox_crtc *vbox_crtc_init(struct drm_device *dev, unsigned int i) +{ + struct vbox_crtc *vbox_crtc; + + vbox_crtc = kzalloc(sizeof(*vbox_crtc), GFP_KERNEL); + if (!vbox_crtc) + return NULL; + + vbox_crtc->crtc_id = i; + + drm_crtc_init(dev, &vbox_crtc->base, &vbox_crtc_funcs); + drm_mode_crtc_set_gamma_size(&vbox_crtc->base, 256); + drm_crtc_helper_add(&vbox_crtc->base, &vbox_crtc_helper_funcs); + + return vbox_crtc; +} + +static void vbox_encoder_destroy(struct drm_encoder *encoder) +{ + drm_encoder_cleanup(encoder); + kfree(encoder); +} + +#if RTLNX_VER_MAX(3,13,0) && !RTLNX_RHEL_MAJ_PREREQ(7,1) +static struct drm_encoder *drm_encoder_find(struct drm_device *dev, u32 id) +{ + struct drm_mode_object *mo; + + mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER); + return mo ? obj_to_encoder(mo) : NULL; +} +#endif + +static struct drm_encoder *vbox_best_single_encoder(struct drm_connector + *connector) +{ +#if RTLNX_VER_MIN(5,5,0) || RTLNX_RHEL_MIN(8,3) || RTLNX_SUSE_MAJ_PREREQ(15,3) + struct drm_encoder *encoder; + + /* There is only one encoder per connector */ + drm_connector_for_each_possible_encoder(connector, encoder) + return encoder; +#else /* < 5.5 || RHEL < 8.3 */ + int enc_id = connector->encoder_ids[0]; + + /* pick the encoder ids */ + if (enc_id) +# if RTLNX_VER_MIN(4,15,0) || RTLNX_RHEL_MAJ_PREREQ(7,6) || (defined(CONFIG_SUSE_VERSION) && RTLNX_VER_MIN(4,12,0)) + return drm_encoder_find(connector->dev, NULL, enc_id); +# else + return drm_encoder_find(connector->dev, enc_id); +# endif +#endif /* < 5.5 || RHEL < 8.3 */ + return NULL; +} + +static const struct drm_encoder_funcs vbox_enc_funcs = { + .destroy = vbox_encoder_destroy, +}; + +static void vbox_encoder_dpms(struct drm_encoder *encoder, int mode) +{ +} + +static bool vbox_mode_fixup(struct drm_encoder *encoder, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + return true; +} + +static void vbox_encoder_mode_set(struct drm_encoder *encoder, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ +} + +static void vbox_encoder_prepare(struct drm_encoder *encoder) +{ +} + +static void vbox_encoder_commit(struct drm_encoder *encoder) +{ +} + +static const struct drm_encoder_helper_funcs vbox_enc_helper_funcs = { + .dpms = vbox_encoder_dpms, + .mode_fixup = vbox_mode_fixup, + .prepare = vbox_encoder_prepare, + .commit = vbox_encoder_commit, + .mode_set = vbox_encoder_mode_set, +}; + +static struct drm_encoder *vbox_encoder_init(struct drm_device *dev, + unsigned int i) +{ + struct vbox_encoder *vbox_encoder; + + vbox_encoder = kzalloc(sizeof(*vbox_encoder), GFP_KERNEL); + if (!vbox_encoder) + return NULL; + + drm_encoder_init(dev, &vbox_encoder->base, &vbox_enc_funcs, +#if RTLNX_VER_MIN(4,5,0) || RTLNX_RHEL_MAJ_PREREQ(7,3) + DRM_MODE_ENCODER_DAC, NULL); +#else + DRM_MODE_ENCODER_DAC); +#endif + drm_encoder_helper_add(&vbox_encoder->base, &vbox_enc_helper_funcs); + + vbox_encoder->base.possible_crtcs = 1 << i; + return &vbox_encoder->base; +} + +/** + * Generate EDID data with a mode-unique serial number for the virtual + * monitor to try to persuade Unity that different modes correspond to + * different monitors and it should not try to force the same resolution on + * them. + */ +static void vbox_set_edid(struct drm_connector *connector, int width, + int height) +{ + enum { EDID_SIZE = 128 }; + unsigned char edid[EDID_SIZE] = { + 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, /* header */ + 0x58, 0x58, /* manufacturer (VBX) */ + 0x00, 0x00, /* product code */ + 0x00, 0x00, 0x00, 0x00, /* serial number goes here */ + 0x01, /* week of manufacture */ + 0x00, /* year of manufacture */ + 0x01, 0x03, /* EDID version */ + 0x80, /* capabilities - digital */ + 0x00, /* horiz. res in cm, zero for projectors */ + 0x00, /* vert. res in cm */ + 0x78, /* display gamma (120 == 2.2). */ + 0xEE, /* features (standby, suspend, off, RGB, std */ + /* colour space, preferred timing mode) */ + 0xEE, 0x91, 0xA3, 0x54, 0x4C, 0x99, 0x26, 0x0F, 0x50, 0x54, + /* chromaticity for standard colour space. */ + 0x00, 0x00, 0x00, /* no default timings */ + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, /* no standard timings */ + 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x00, 0x02, 0x02, + 0x02, 0x02, + /* descriptor block 1 goes below */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + /* descriptor block 2, monitor ranges */ + 0x00, 0x00, 0x00, 0xFD, 0x00, + 0x00, 0xC8, 0x00, 0xC8, 0x64, 0x00, 0x0A, 0x20, 0x20, 0x20, + 0x20, 0x20, + /* 0-200Hz vertical, 0-200KHz horizontal, 1000MHz pixel clock */ + 0x20, + /* descriptor block 3, monitor name */ + 0x00, 0x00, 0x00, 0xFC, 0x00, + 'V', 'B', 'O', 'X', ' ', 'm', 'o', 'n', 'i', 't', 'o', 'r', + '\n', + /* descriptor block 4: dummy data */ + 0x00, 0x00, 0x00, 0x10, 0x00, + 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, + 0x00, /* number of extensions */ + 0x00 /* checksum goes here */ + }; + int clock = (width + 6) * (height + 6) * 60 / 10000; + unsigned int i, sum = 0; + + edid[12] = width & 0xff; + edid[13] = width >> 8; + edid[14] = height & 0xff; + edid[15] = height >> 8; + edid[54] = clock & 0xff; + edid[55] = clock >> 8; + edid[56] = width & 0xff; + edid[58] = (width >> 4) & 0xf0; + edid[59] = height & 0xff; + edid[61] = (height >> 4) & 0xf0; + for (i = 0; i < EDID_SIZE - 1; ++i) + sum += edid[i]; + edid[EDID_SIZE - 1] = (0x100 - (sum & 0xFF)) & 0xFF; +#if RTLNX_VER_MIN(4,19,0) || RTLNX_RHEL_MAJ_PREREQ(7,7) || RTLNX_RHEL_MAJ_PREREQ(8,1) || RTLNX_SUSE_MAJ_PREREQ(15,1) || RTLNX_SUSE_MAJ_PREREQ(12,5) + drm_connector_update_edid_property(connector, (struct edid *)edid); +#else + drm_mode_connector_update_edid_property(connector, (struct edid *)edid); +#endif +} + +static int vbox_get_modes(struct drm_connector *connector) +{ + struct vbox_connector *vbox_connector = NULL; + struct drm_display_mode *mode = NULL; + struct vbox_private *vbox = NULL; + unsigned int num_modes = 0; + int preferred_width, preferred_height; + + vbox_connector = to_vbox_connector(connector); + vbox = connector->dev->dev_private; + /* + * Heuristic: we do not want to tell the host that we support dynamic + * resizing unless we feel confident that the user space client using + * the video driver can handle hot-plug events. So the first time modes + * are queried after a "master" switch we tell the host that we do not, + * and immediately after we send the client a hot-plug notification as + * a test to see if they will respond and query again. + * That is also the reason why capabilities are reported to the host at + * this place in the code rather than elsewhere. + * We need to report the flags location before reporting the IRQ + * capability. + */ + VBoxHGSMIReportFlagsLocation(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) + + HOST_FLAGS_OFFSET); + if (vbox_connector->vbox_crtc->crtc_id == 0) + vbox_report_caps(vbox); + if (!vbox->initial_mode_queried) { + if (vbox_connector->vbox_crtc->crtc_id == 0) { + vbox->initial_mode_queried = true; + vbox_report_hotplug(vbox); + } + return drm_add_modes_noedid(connector, 800, 600); + } + /* Also assume that a client which supports hot-plugging also knows + * how to update the screen in a way we can use, the only known + * relevent client which cannot is Plymouth in Ubuntu 14.04. */ + vbox->need_refresh_timer = false; + num_modes = drm_add_modes_noedid(connector, 2560, 1600); + preferred_width = vbox_connector->mode_hint.width ? + vbox_connector->mode_hint.width : 1024; + preferred_height = vbox_connector->mode_hint.height ? + vbox_connector->mode_hint.height : 768; + mode = drm_cvt_mode(connector->dev, preferred_width, preferred_height, + 60, false, false, false); + if (mode) { + mode->type |= DRM_MODE_TYPE_PREFERRED; + drm_mode_probed_add(connector, mode); + ++num_modes; + } + vbox_set_edid(connector, preferred_width, preferred_height); + +#if RTLNX_VER_MIN(3,19,0) || RTLNX_RHEL_MAJ_PREREQ(7,2) + if (vbox_connector->vbox_crtc->x_hint != -1) + drm_object_property_set_value(&connector->base, + vbox->dev->mode_config.suggested_x_property, + vbox_connector->vbox_crtc->x_hint); + else + drm_object_property_set_value(&connector->base, + vbox->dev->mode_config.suggested_x_property, 0); + + if (vbox_connector->vbox_crtc->y_hint != -1) + drm_object_property_set_value(&connector->base, + vbox->dev->mode_config.suggested_y_property, + vbox_connector->vbox_crtc->y_hint); + else + drm_object_property_set_value(&connector->base, + vbox->dev->mode_config.suggested_y_property, 0); +#endif + + return num_modes; +} + +#if RTLNX_VER_MAX(3,14,0) && !RTLNX_RHEL_MAJ_PREREQ(7,1) +static int vbox_mode_valid(struct drm_connector *connector, +#else +static enum drm_mode_status vbox_mode_valid(struct drm_connector *connector, +#endif + struct drm_display_mode *mode) +{ + return MODE_OK; +} + +static void vbox_connector_destroy(struct drm_connector *connector) +{ +#if RTLNX_VER_MAX(3,17,0) && !RTLNX_RHEL_MAJ_PREREQ(7,2) + drm_sysfs_connector_remove(connector); +#else + drm_connector_unregister(connector); +#endif + drm_connector_cleanup(connector); + kfree(connector); +} + +static enum drm_connector_status +vbox_connector_detect(struct drm_connector *connector, bool force) +{ + struct vbox_connector *vbox_connector; + + vbox_connector = to_vbox_connector(connector); + + return vbox_connector->mode_hint.disconnected ? + connector_status_disconnected : connector_status_connected; +} + +static int vbox_fill_modes(struct drm_connector *connector, u32 max_x, + u32 max_y) +{ + struct vbox_connector *vbox_connector; + struct drm_device *dev; + struct drm_display_mode *mode, *iterator; + + vbox_connector = to_vbox_connector(connector); + dev = vbox_connector->base.dev; + list_for_each_entry_safe(mode, iterator, &connector->modes, head) { + list_del(&mode->head); + drm_mode_destroy(dev, mode); + } + + return drm_helper_probe_single_connector_modes(connector, max_x, max_y); +} + +static const struct drm_connector_helper_funcs vbox_connector_helper_funcs = { + .mode_valid = vbox_mode_valid, + .get_modes = vbox_get_modes, + .best_encoder = vbox_best_single_encoder, +}; + +static const struct drm_connector_funcs vbox_connector_funcs = { + .dpms = drm_helper_connector_dpms, + .detect = vbox_connector_detect, + .fill_modes = vbox_fill_modes, + .destroy = vbox_connector_destroy, +}; + +static int vbox_connector_init(struct drm_device *dev, + struct vbox_crtc *vbox_crtc, + struct drm_encoder *encoder) +{ + struct vbox_connector *vbox_connector; + struct drm_connector *connector; + + vbox_connector = kzalloc(sizeof(*vbox_connector), GFP_KERNEL); + if (!vbox_connector) + return -ENOMEM; + + connector = &vbox_connector->base; + vbox_connector->vbox_crtc = vbox_crtc; + + drm_connector_init(dev, connector, &vbox_connector_funcs, + DRM_MODE_CONNECTOR_VGA); + drm_connector_helper_add(connector, &vbox_connector_helper_funcs); + + connector->interlace_allowed = 0; + connector->doublescan_allowed = 0; + +#if RTLNX_VER_MIN(3,19,0) || RTLNX_RHEL_MAJ_PREREQ(7,2) + drm_mode_create_suggested_offset_properties(dev); + drm_object_attach_property(&connector->base, + dev->mode_config.suggested_x_property, 0); + drm_object_attach_property(&connector->base, + dev->mode_config.suggested_y_property, 0); +#endif +#if RTLNX_VER_MAX(3,17,0) && !RTLNX_RHEL_MAJ_PREREQ(7,2) + drm_sysfs_connector_add(connector); +#else + drm_connector_register(connector); +#endif + +#if RTLNX_VER_MIN(4,19,0) || RTLNX_RHEL_MAJ_PREREQ(7,7) || RTLNX_RHEL_MAJ_PREREQ(8,1) || RTLNX_SUSE_MAJ_PREREQ(15,1) || RTLNX_SUSE_MAJ_PREREQ(12,5) + drm_connector_attach_encoder(connector, encoder); +#else + drm_mode_connector_attach_encoder(connector, encoder); +#endif + + return 0; +} + +int vbox_mode_init(struct drm_device *dev) +{ + struct vbox_private *vbox = dev->dev_private; + struct drm_encoder *encoder; + struct vbox_crtc *vbox_crtc; + unsigned int i; + int ret; + + /* vbox_cursor_init(dev); */ + for (i = 0; i < vbox->num_crtcs; ++i) { + vbox_crtc = vbox_crtc_init(dev, i); + if (!vbox_crtc) + return -ENOMEM; + encoder = vbox_encoder_init(dev, i); + if (!encoder) + return -ENOMEM; + ret = vbox_connector_init(dev, vbox_crtc, encoder); + if (ret) + return ret; + } + + return 0; +} + +void vbox_mode_fini(struct drm_device *dev) +{ + /* vbox_cursor_fini(dev); */ +} + +/** + * Copy the ARGB image and generate the mask, which is needed in case the host + * does not support ARGB cursors. The mask is a 1BPP bitmap with the bit set + * if the corresponding alpha value in the ARGB image is greater than 0xF0. + */ +static void copy_cursor_image(u8 *src, u8 *dst, u32 width, u32 height, + size_t mask_size) +{ + size_t line_size = (width + 7) / 8; + u32 i, j; + + memcpy(dst + mask_size, src, width * height * 4); + for (i = 0; i < height; ++i) + for (j = 0; j < width; ++j) + if (((u32 *)src)[i * width + j] > 0xf0000000) + dst[i * line_size + j / 8] |= (0x80 >> (j % 8)); +} + +static int vbox_cursor_set2(struct drm_crtc *crtc, struct drm_file *file_priv, + u32 handle, u32 width, u32 height, + s32 hot_x, s32 hot_y) +{ + struct vbox_private *vbox = crtc->dev->dev_private; + struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); + struct ttm_bo_kmap_obj uobj_map; + size_t data_size, mask_size; + struct drm_gem_object *obj; + u32 flags, caps = 0; + struct vbox_bo *bo; + bool src_isiomem; + u8 *dst = NULL; + u8 *src; + int ret; + + if (!handle) { + bool cursor_enabled = false; + struct drm_crtc *crtci; + + /* Hide cursor. */ + vbox_crtc->cursor_enabled = false; + list_for_each_entry(crtci, &vbox->dev->mode_config.crtc_list, + head) { + if (to_vbox_crtc(crtci)->cursor_enabled) + cursor_enabled = true; + } + + if (!cursor_enabled) + VBoxHGSMIUpdatePointerShape(vbox->guest_pool, 0, 0, 0, + 0, 0, NULL, 0); + return 0; + } + + vbox_crtc->cursor_enabled = true; + + if (width > VBOX_MAX_CURSOR_WIDTH || height > VBOX_MAX_CURSOR_HEIGHT || + width == 0 || height == 0) + return -EINVAL; + ret = VBoxQueryConfHGSMI(vbox->guest_pool, + VBOX_VBVA_CONF32_CURSOR_CAPABILITIES, &caps); + if (ret) + return ret == VERR_NO_MEMORY ? -ENOMEM : -EINVAL; + + if (!(caps & VBOX_VBVA_CURSOR_CAPABILITY_HARDWARE)) { + /* + * -EINVAL means cursor_set2() not supported, -EAGAIN means + * retry at once. + */ + return -EBUSY; + } + +#if RTLNX_VER_MIN(4,7,0) || RTLNX_RHEL_MAJ_PREREQ(7,4) + obj = drm_gem_object_lookup(file_priv, handle); +#else + obj = drm_gem_object_lookup(crtc->dev, file_priv, handle); +#endif + if (!obj) { + DRM_ERROR("Cannot find cursor object %x for crtc\n", handle); + return -ENOENT; + } + + bo = gem_to_vbox_bo(obj); + ret = vbox_bo_reserve(bo, false); + if (ret) + goto out_unref_obj; + + /* + * The mask must be calculated based on the alpha + * channel, one bit per ARGB word, and must be 32-bit + * padded. + */ + mask_size = ((width + 7) / 8 * height + 3) & ~3; + data_size = width * height * 4 + mask_size; + vbox->cursor_hot_x = hot_x; + vbox->cursor_hot_y = hot_y; + vbox->cursor_width = width; + vbox->cursor_height = height; + vbox->cursor_data_size = data_size; + dst = vbox->cursor_data; + +#if RTLNX_VER_MIN(6,4,0) + /* Make sure bo is in SYSTEM (main) memory, so we can access it directly. */ + ret = vbox_bo_pin(bo, VBOX_MEM_TYPE_SYSTEM, NULL); + if (ret) + { + DRM_ERROR("cannot pin bo to main memory\n"); + goto out_bo_unpin; + } +#endif + +#if RTLNX_VER_MIN(5,14,0) || RTLNX_RHEL_RANGE(8,6, 8,99) + ret = ttm_bo_kmap(&bo->bo, 0, VBOX_BO_RESOURCE_NUM_PAGES(bo->bo.resource), &uobj_map); +#elif RTLNX_VER_MIN(5,12,0) || RTLNX_RHEL_MAJ_PREREQ(8,5) + ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.mem.num_pages, &uobj_map); +#else + ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &uobj_map); +#endif + if (ret) { + vbox->cursor_data_size = 0; + goto out_unreserve_bo; + } + + src = ttm_kmap_obj_virtual(&uobj_map, &src_isiomem); + if (src_isiomem) { + DRM_ERROR("src cursor bo not in main memory\n"); + ret = -EIO; + goto out_unmap_bo; + } + + copy_cursor_image(src, dst, width, height, mask_size); + + flags = VBOX_MOUSE_POINTER_VISIBLE | VBOX_MOUSE_POINTER_SHAPE | + VBOX_MOUSE_POINTER_ALPHA; + ret = VBoxHGSMIUpdatePointerShape(vbox->guest_pool, flags, + vbox->cursor_hot_x, vbox->cursor_hot_y, + width, height, dst, data_size); + ret = ret == VINF_SUCCESS ? 0 : ret == VERR_NO_MEMORY ? -ENOMEM : + ret == VERR_NOT_SUPPORTED ? -EBUSY : -EINVAL; + +out_unmap_bo: + ttm_bo_kunmap(&uobj_map); +#if RTLNX_VER_MIN(6,4,0) +out_bo_unpin: + vbox_bo_unpin(bo); +#endif +out_unreserve_bo: + vbox_bo_unreserve(bo); +out_unref_obj: +#if RTLNX_VER_MIN(5,9,0) || RTLNX_RHEL_MIN(8,4) || RTLNX_SUSE_MAJ_PREREQ(15,3) + drm_gem_object_put(obj); +#else + drm_gem_object_put_unlocked(obj); +#endif + + return ret; +} + +static int vbox_cursor_move(struct drm_crtc *crtc, int x, int y) +{ + struct vbox_private *vbox = crtc->dev->dev_private; + s32 crtc_x = + vbox->single_framebuffer ? crtc->x : to_vbox_crtc(crtc)->x_hint; + s32 crtc_y = + vbox->single_framebuffer ? crtc->y : to_vbox_crtc(crtc)->y_hint; + int ret; + + x += vbox->cursor_hot_x; + y += vbox->cursor_hot_y; + if (x + crtc_x < 0 || y + crtc_y < 0 || + x + crtc_x >= vbox->input_mapping_width || + y + crtc_y >= vbox->input_mapping_width || + vbox->cursor_data_size == 0) + return 0; + ret = VBoxHGSMICursorPosition(vbox->guest_pool, true, x + crtc_x, + y + crtc_y, NULL, NULL); + return ret == VINF_SUCCESS ? 0 : ret == VERR_NO_MEMORY ? -ENOMEM : ret == + VERR_NOT_SUPPORTED ? -EBUSY : -EINVAL; +} |