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path: root/drivers/staging/vboxvideo/vbox_main.c
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Diffstat (limited to 'drivers/staging/vboxvideo/vbox_main.c')
-rw-r--r--drivers/staging/vboxvideo/vbox_main.c361
1 files changed, 0 insertions, 361 deletions
diff --git a/drivers/staging/vboxvideo/vbox_main.c b/drivers/staging/vboxvideo/vbox_main.c
deleted file mode 100644
index e1fb70a42d32..000000000000
--- a/drivers/staging/vboxvideo/vbox_main.c
+++ /dev/null
@@ -1,361 +0,0 @@
-// SPDX-License-Identifier: MIT
-/*
- * Copyright (C) 2013-2017 Oracle Corporation
- * This file is based on ast_main.c
- * Copyright 2012 Red Hat Inc.
- * Authors: Dave Airlie <airlied@redhat.com>,
- * Michael Thayer <michael.thayer@oracle.com,
- * Hans de Goede <hdegoede@redhat.com>
- */
-
-#include <linux/vbox_err.h>
-#include <drm/drm_fb_helper.h>
-#include <drm/drm_crtc_helper.h>
-
-#include "vbox_drv.h"
-#include "vboxvideo_guest.h"
-#include "vboxvideo_vbe.h"
-
-static void vbox_user_framebuffer_destroy(struct drm_framebuffer *fb)
-{
- struct vbox_framebuffer *vbox_fb = to_vbox_framebuffer(fb);
-
- if (vbox_fb->obj)
- drm_gem_object_put_unlocked(vbox_fb->obj);
-
- drm_framebuffer_cleanup(fb);
- kfree(fb);
-}
-
-void vbox_report_caps(struct vbox_private *vbox)
-{
- u32 caps = VBVACAPS_DISABLE_CURSOR_INTEGRATION |
- VBVACAPS_IRQ | VBVACAPS_USE_VBVA_ONLY;
-
- if (vbox->initial_mode_queried)
- caps |= VBVACAPS_VIDEO_MODE_HINTS;
-
- hgsmi_send_caps_info(vbox->guest_pool, caps);
-}
-
-/* Send information about dirty rectangles to VBVA. */
-void vbox_framebuffer_dirty_rectangles(struct drm_framebuffer *fb,
- struct drm_clip_rect *rects,
- unsigned int num_rects)
-{
- struct vbox_private *vbox = fb->dev->dev_private;
- struct drm_display_mode *mode;
- struct drm_crtc *crtc;
- int crtc_x, crtc_y;
- unsigned int i;
-
- mutex_lock(&vbox->hw_mutex);
- list_for_each_entry(crtc, &fb->dev->mode_config.crtc_list, head) {
- if (crtc->primary->state->fb != fb)
- continue;
-
- mode = &crtc->state->mode;
- crtc_x = crtc->primary->state->src_x >> 16;
- crtc_y = crtc->primary->state->src_y >> 16;
-
- for (i = 0; i < num_rects; ++i) {
- struct vbva_cmd_hdr cmd_hdr;
- unsigned int crtc_id = to_vbox_crtc(crtc)->crtc_id;
-
- if (rects[i].x1 > crtc_x + mode->hdisplay ||
- rects[i].y1 > crtc_y + mode->vdisplay ||
- rects[i].x2 < crtc_x ||
- rects[i].y2 < crtc_y)
- continue;
-
- cmd_hdr.x = (s16)rects[i].x1;
- cmd_hdr.y = (s16)rects[i].y1;
- cmd_hdr.w = (u16)rects[i].x2 - rects[i].x1;
- cmd_hdr.h = (u16)rects[i].y2 - rects[i].y1;
-
- if (!vbva_buffer_begin_update(&vbox->vbva_info[crtc_id],
- vbox->guest_pool))
- continue;
-
- vbva_write(&vbox->vbva_info[crtc_id], vbox->guest_pool,
- &cmd_hdr, sizeof(cmd_hdr));
- vbva_buffer_end_update(&vbox->vbva_info[crtc_id]);
- }
- }
- mutex_unlock(&vbox->hw_mutex);
-}
-
-static int vbox_user_framebuffer_dirty(struct drm_framebuffer *fb,
- struct drm_file *file_priv,
- unsigned int flags, unsigned int color,
- struct drm_clip_rect *rects,
- unsigned int num_rects)
-{
- vbox_framebuffer_dirty_rectangles(fb, rects, num_rects);
-
- return 0;
-}
-
-static const struct drm_framebuffer_funcs vbox_fb_funcs = {
- .destroy = vbox_user_framebuffer_destroy,
- .dirty = vbox_user_framebuffer_dirty,
-};
-
-int vbox_framebuffer_init(struct vbox_private *vbox,
- struct vbox_framebuffer *vbox_fb,
- const struct drm_mode_fb_cmd2 *mode_cmd,
- struct drm_gem_object *obj)
-{
- int ret;
-
- drm_helper_mode_fill_fb_struct(&vbox->ddev, &vbox_fb->base, mode_cmd);
- vbox_fb->obj = obj;
- ret = drm_framebuffer_init(&vbox->ddev, &vbox_fb->base, &vbox_fb_funcs);
- if (ret) {
- DRM_ERROR("framebuffer init failed %d\n", ret);
- return ret;
- }
-
- return 0;
-}
-
-static int vbox_accel_init(struct vbox_private *vbox)
-{
- struct vbva_buffer *vbva;
- unsigned int i;
-
- vbox->vbva_info = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
- sizeof(*vbox->vbva_info), GFP_KERNEL);
- if (!vbox->vbva_info)
- return -ENOMEM;
-
- /* Take a command buffer for each screen from the end of usable VRAM. */
- vbox->available_vram_size -= vbox->num_crtcs * VBVA_MIN_BUFFER_SIZE;
-
- vbox->vbva_buffers = pci_iomap_range(vbox->ddev.pdev, 0,
- vbox->available_vram_size,
- vbox->num_crtcs *
- VBVA_MIN_BUFFER_SIZE);
- if (!vbox->vbva_buffers)
- return -ENOMEM;
-
- for (i = 0; i < vbox->num_crtcs; ++i) {
- vbva_setup_buffer_context(&vbox->vbva_info[i],
- vbox->available_vram_size +
- i * VBVA_MIN_BUFFER_SIZE,
- VBVA_MIN_BUFFER_SIZE);
- vbva = (void __force *)vbox->vbva_buffers +
- i * VBVA_MIN_BUFFER_SIZE;
- if (!vbva_enable(&vbox->vbva_info[i],
- vbox->guest_pool, vbva, i)) {
- /* very old host or driver error. */
- DRM_ERROR("vboxvideo: vbva_enable failed\n");
- }
- }
-
- return 0;
-}
-
-static void vbox_accel_fini(struct vbox_private *vbox)
-{
- unsigned int i;
-
- for (i = 0; i < vbox->num_crtcs; ++i)
- vbva_disable(&vbox->vbva_info[i], vbox->guest_pool, i);
-
- pci_iounmap(vbox->ddev.pdev, vbox->vbva_buffers);
-}
-
-/* Do we support the 4.3 plus mode hint reporting interface? */
-static bool have_hgsmi_mode_hints(struct vbox_private *vbox)
-{
- u32 have_hints, have_cursor;
- int ret;
-
- ret = hgsmi_query_conf(vbox->guest_pool,
- VBOX_VBVA_CONF32_MODE_HINT_REPORTING,
- &have_hints);
- if (ret)
- return false;
-
- ret = hgsmi_query_conf(vbox->guest_pool,
- VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING,
- &have_cursor);
- if (ret)
- return false;
-
- return have_hints == VINF_SUCCESS && have_cursor == VINF_SUCCESS;
-}
-
-bool vbox_check_supported(u16 id)
-{
- u16 dispi_id;
-
- vbox_write_ioport(VBE_DISPI_INDEX_ID, id);
- dispi_id = inw(VBE_DISPI_IOPORT_DATA);
-
- return dispi_id == id;
-}
-
-int vbox_hw_init(struct vbox_private *vbox)
-{
- int ret = -ENOMEM;
-
- vbox->full_vram_size = inl(VBE_DISPI_IOPORT_DATA);
- vbox->any_pitch = vbox_check_supported(VBE_DISPI_ID_ANYX);
-
- DRM_INFO("VRAM %08x\n", vbox->full_vram_size);
-
- /* Map guest-heap at end of vram */
- vbox->guest_heap =
- pci_iomap_range(vbox->ddev.pdev, 0, GUEST_HEAP_OFFSET(vbox),
- GUEST_HEAP_SIZE);
- if (!vbox->guest_heap)
- return -ENOMEM;
-
- /* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
- vbox->guest_pool = gen_pool_create(4, -1);
- if (!vbox->guest_pool)
- goto err_unmap_guest_heap;
-
- ret = gen_pool_add_virt(vbox->guest_pool,
- (unsigned long)vbox->guest_heap,
- GUEST_HEAP_OFFSET(vbox),
- GUEST_HEAP_USABLE_SIZE, -1);
- if (ret)
- goto err_destroy_guest_pool;
-
- ret = hgsmi_test_query_conf(vbox->guest_pool);
- if (ret) {
- DRM_ERROR("vboxvideo: hgsmi_test_query_conf failed\n");
- goto err_destroy_guest_pool;
- }
-
- /* Reduce available VRAM size to reflect the guest heap. */
- vbox->available_vram_size = GUEST_HEAP_OFFSET(vbox);
- /* Linux drm represents monitors as a 32-bit array. */
- hgsmi_query_conf(vbox->guest_pool, VBOX_VBVA_CONF32_MONITOR_COUNT,
- &vbox->num_crtcs);
- vbox->num_crtcs = clamp_t(u32, vbox->num_crtcs, 1, VBOX_MAX_SCREENS);
-
- if (!have_hgsmi_mode_hints(vbox)) {
- ret = -ENOTSUPP;
- goto err_destroy_guest_pool;
- }
-
- vbox->last_mode_hints = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
- sizeof(struct vbva_modehint),
- GFP_KERNEL);
- if (!vbox->last_mode_hints) {
- ret = -ENOMEM;
- goto err_destroy_guest_pool;
- }
-
- ret = vbox_accel_init(vbox);
- if (ret)
- goto err_destroy_guest_pool;
-
- return 0;
-
-err_destroy_guest_pool:
- gen_pool_destroy(vbox->guest_pool);
-err_unmap_guest_heap:
- pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
- return ret;
-}
-
-void vbox_hw_fini(struct vbox_private *vbox)
-{
- vbox_accel_fini(vbox);
- gen_pool_destroy(vbox->guest_pool);
- pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
-}
-
-int vbox_gem_create(struct vbox_private *vbox,
- u32 size, bool iskernel, struct drm_gem_object **obj)
-{
- struct vbox_bo *vboxbo;
- int ret;
-
- *obj = NULL;
-
- size = roundup(size, PAGE_SIZE);
- if (size == 0)
- return -EINVAL;
-
- ret = vbox_bo_create(vbox, size, 0, 0, &vboxbo);
- if (ret) {
- if (ret != -ERESTARTSYS)
- DRM_ERROR("failed to allocate GEM object\n");
- return ret;
- }
-
- *obj = &vboxbo->gem;
-
- return 0;
-}
-
-int vbox_dumb_create(struct drm_file *file,
- struct drm_device *dev, struct drm_mode_create_dumb *args)
-{
- struct vbox_private *vbox =
- container_of(dev, struct vbox_private, ddev);
- struct drm_gem_object *gobj;
- u32 handle;
- int ret;
-
- args->pitch = args->width * ((args->bpp + 7) / 8);
- args->size = args->pitch * args->height;
-
- ret = vbox_gem_create(vbox, args->size, false, &gobj);
- if (ret)
- return ret;
-
- ret = drm_gem_handle_create(file, gobj, &handle);
- drm_gem_object_put_unlocked(gobj);
- if (ret)
- return ret;
-
- args->handle = handle;
-
- return 0;
-}
-
-void vbox_gem_free_object(struct drm_gem_object *obj)
-{
- struct vbox_bo *vbox_bo = gem_to_vbox_bo(obj);
-
- ttm_bo_put(&vbox_bo->bo);
-}
-
-static inline u64 vbox_bo_mmap_offset(struct vbox_bo *bo)
-{
- return drm_vma_node_offset_addr(&bo->bo.vma_node);
-}
-
-int
-vbox_dumb_mmap_offset(struct drm_file *file,
- struct drm_device *dev,
- u32 handle, u64 *offset)
-{
- struct drm_gem_object *obj;
- int ret;
- struct vbox_bo *bo;
-
- mutex_lock(&dev->struct_mutex);
- obj = drm_gem_object_lookup(file, handle);
- if (!obj) {
- ret = -ENOENT;
- goto out_unlock;
- }
-
- bo = gem_to_vbox_bo(obj);
- *offset = vbox_bo_mmap_offset(bo);
-
- drm_gem_object_put(obj);
- ret = 0;
-
-out_unlock:
- mutex_unlock(&dev->struct_mutex);
- return ret;
-}