2 * Copyright (C) 2013-2017 Oracle Corporation
3 * This file is based on ast_main.c
4 * Copyright 2012 Red Hat Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
18 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
19 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
26 * Authors: Dave Airlie <airlied@redhat.com>,
27 * Michael Thayer <michael.thayer@oracle.com,
28 * Hans de Goede <hdegoede@redhat.com>
30 #include <drm/drm_fb_helper.h>
31 #include <drm/drm_crtc_helper.h>
35 #include "vboxvideo_guest.h"
36 #include "vboxvideo_vbe.h"
38 static void vbox_user_framebuffer_destroy(struct drm_framebuffer *fb)
40 struct vbox_framebuffer *vbox_fb = to_vbox_framebuffer(fb);
43 drm_gem_object_put_unlocked(vbox_fb->obj);
45 drm_framebuffer_cleanup(fb);
49 void vbox_enable_accel(struct vbox_private *vbox)
52 struct vbva_buffer *vbva;
54 if (!vbox->vbva_info || !vbox->vbva_buffers) {
55 /* Should never happen... */
56 DRM_ERROR("vboxvideo: failed to set up VBVA.\n");
60 for (i = 0; i < vbox->num_crtcs; ++i) {
61 if (vbox->vbva_info[i].vbva)
64 vbva = (void __force *)vbox->vbva_buffers +
65 i * VBVA_MIN_BUFFER_SIZE;
66 if (!vbva_enable(&vbox->vbva_info[i],
67 vbox->guest_pool, vbva, i)) {
68 /* very old host or driver error. */
69 DRM_ERROR("vboxvideo: vbva_enable failed\n");
75 void vbox_disable_accel(struct vbox_private *vbox)
79 for (i = 0; i < vbox->num_crtcs; ++i)
80 vbva_disable(&vbox->vbva_info[i], vbox->guest_pool, i);
83 void vbox_report_caps(struct vbox_private *vbox)
85 u32 caps = VBVACAPS_DISABLE_CURSOR_INTEGRATION |
86 VBVACAPS_IRQ | VBVACAPS_USE_VBVA_ONLY;
88 if (vbox->initial_mode_queried)
89 caps |= VBVACAPS_VIDEO_MODE_HINTS;
91 hgsmi_send_caps_info(vbox->guest_pool, caps);
95 * Send information about dirty rectangles to VBVA. If necessary we enable
96 * VBVA first, as this is normally disabled after a change of master in case
97 * the new master does not send dirty rectangle information (is this even
100 void vbox_framebuffer_dirty_rectangles(struct drm_framebuffer *fb,
101 struct drm_clip_rect *rects,
102 unsigned int num_rects)
104 struct vbox_private *vbox = fb->dev->dev_private;
105 struct drm_display_mode *mode;
106 struct drm_crtc *crtc;
110 mutex_lock(&vbox->hw_mutex);
111 list_for_each_entry(crtc, &fb->dev->mode_config.crtc_list, head) {
112 if (crtc->primary->state->fb != fb)
115 mode = &crtc->state->mode;
116 crtc_x = crtc->primary->state->src_x >> 16;
117 crtc_y = crtc->primary->state->src_y >> 16;
119 vbox_enable_accel(vbox);
121 for (i = 0; i < num_rects; ++i) {
122 struct vbva_cmd_hdr cmd_hdr;
123 unsigned int crtc_id = to_vbox_crtc(crtc)->crtc_id;
125 if ((rects[i].x1 > crtc_x + mode->hdisplay) ||
126 (rects[i].y1 > crtc_y + mode->vdisplay) ||
127 (rects[i].x2 < crtc_x) ||
128 (rects[i].y2 < crtc_y))
131 cmd_hdr.x = (s16)rects[i].x1;
132 cmd_hdr.y = (s16)rects[i].y1;
133 cmd_hdr.w = (u16)rects[i].x2 - rects[i].x1;
134 cmd_hdr.h = (u16)rects[i].y2 - rects[i].y1;
136 if (!vbva_buffer_begin_update(&vbox->vbva_info[crtc_id],
140 vbva_write(&vbox->vbva_info[crtc_id], vbox->guest_pool,
141 &cmd_hdr, sizeof(cmd_hdr));
142 vbva_buffer_end_update(&vbox->vbva_info[crtc_id]);
145 mutex_unlock(&vbox->hw_mutex);
148 static int vbox_user_framebuffer_dirty(struct drm_framebuffer *fb,
149 struct drm_file *file_priv,
150 unsigned int flags, unsigned int color,
151 struct drm_clip_rect *rects,
152 unsigned int num_rects)
154 vbox_framebuffer_dirty_rectangles(fb, rects, num_rects);
159 static const struct drm_framebuffer_funcs vbox_fb_funcs = {
160 .destroy = vbox_user_framebuffer_destroy,
161 .dirty = vbox_user_framebuffer_dirty,
164 int vbox_framebuffer_init(struct vbox_private *vbox,
165 struct vbox_framebuffer *vbox_fb,
166 const struct DRM_MODE_FB_CMD *mode_cmd,
167 struct drm_gem_object *obj)
171 drm_helper_mode_fill_fb_struct(&vbox->ddev, &vbox_fb->base, mode_cmd);
173 ret = drm_framebuffer_init(&vbox->ddev, &vbox_fb->base, &vbox_fb_funcs);
175 DRM_ERROR("framebuffer init failed %d\n", ret);
182 static int vbox_accel_init(struct vbox_private *vbox)
186 vbox->vbva_info = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
187 sizeof(*vbox->vbva_info), GFP_KERNEL);
188 if (!vbox->vbva_info)
191 /* Take a command buffer for each screen from the end of usable VRAM. */
192 vbox->available_vram_size -= vbox->num_crtcs * VBVA_MIN_BUFFER_SIZE;
194 vbox->vbva_buffers = pci_iomap_range(vbox->ddev.pdev, 0,
195 vbox->available_vram_size,
197 VBVA_MIN_BUFFER_SIZE);
198 if (!vbox->vbva_buffers)
201 for (i = 0; i < vbox->num_crtcs; ++i)
202 vbva_setup_buffer_context(&vbox->vbva_info[i],
203 vbox->available_vram_size +
204 i * VBVA_MIN_BUFFER_SIZE,
205 VBVA_MIN_BUFFER_SIZE);
210 static void vbox_accel_fini(struct vbox_private *vbox)
212 vbox_disable_accel(vbox);
213 pci_iounmap(vbox->ddev.pdev, vbox->vbva_buffers);
216 /** Do we support the 4.3 plus mode hint reporting interface? */
217 static bool have_hgsmi_mode_hints(struct vbox_private *vbox)
219 u32 have_hints, have_cursor;
222 ret = hgsmi_query_conf(vbox->guest_pool,
223 VBOX_VBVA_CONF32_MODE_HINT_REPORTING,
228 ret = hgsmi_query_conf(vbox->guest_pool,
229 VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING,
234 return have_hints == VINF_SUCCESS && have_cursor == VINF_SUCCESS;
237 bool vbox_check_supported(u16 id)
241 vbox_write_ioport(VBE_DISPI_INDEX_ID, id);
242 dispi_id = inw(VBE_DISPI_IOPORT_DATA);
244 return dispi_id == id;
248 * Set up our heaps and data exchange buffers in VRAM before handing the rest
249 * to the memory manager.
251 int vbox_hw_init(struct vbox_private *vbox)
255 vbox->full_vram_size = inl(VBE_DISPI_IOPORT_DATA);
256 vbox->any_pitch = vbox_check_supported(VBE_DISPI_ID_ANYX);
258 DRM_INFO("VRAM %08x\n", vbox->full_vram_size);
260 /* Map guest-heap at end of vram */
262 pci_iomap_range(vbox->ddev.pdev, 0, GUEST_HEAP_OFFSET(vbox),
264 if (!vbox->guest_heap)
267 /* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
268 vbox->guest_pool = gen_pool_create(4, -1);
269 if (!vbox->guest_pool)
270 goto err_unmap_guest_heap;
272 ret = gen_pool_add_virt(vbox->guest_pool,
273 (unsigned long)vbox->guest_heap,
274 GUEST_HEAP_OFFSET(vbox),
275 GUEST_HEAP_USABLE_SIZE, -1);
277 goto err_destroy_guest_pool;
279 ret = hgsmi_test_query_conf(vbox->guest_pool);
281 DRM_ERROR("vboxvideo: hgsmi_test_query_conf failed\n");
282 goto err_destroy_guest_pool;
285 /* Reduce available VRAM size to reflect the guest heap. */
286 vbox->available_vram_size = GUEST_HEAP_OFFSET(vbox);
287 /* Linux drm represents monitors as a 32-bit array. */
288 hgsmi_query_conf(vbox->guest_pool, VBOX_VBVA_CONF32_MONITOR_COUNT,
290 vbox->num_crtcs = clamp_t(u32, vbox->num_crtcs, 1, VBOX_MAX_SCREENS);
292 if (!have_hgsmi_mode_hints(vbox)) {
294 goto err_destroy_guest_pool;
297 vbox->last_mode_hints = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
298 sizeof(struct vbva_modehint),
300 if (!vbox->last_mode_hints) {
302 goto err_destroy_guest_pool;
305 ret = vbox_accel_init(vbox);
307 goto err_destroy_guest_pool;
311 err_destroy_guest_pool:
312 gen_pool_destroy(vbox->guest_pool);
313 err_unmap_guest_heap:
314 pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
318 void vbox_hw_fini(struct vbox_private *vbox)
320 vbox_accel_fini(vbox);
321 gen_pool_destroy(vbox->guest_pool);
322 pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
325 int vbox_gem_create(struct vbox_private *vbox,
326 u32 size, bool iskernel, struct drm_gem_object **obj)
328 struct vbox_bo *vboxbo;
333 size = roundup(size, PAGE_SIZE);
337 ret = vbox_bo_create(vbox, size, 0, 0, &vboxbo);
339 if (ret != -ERESTARTSYS)
340 DRM_ERROR("failed to allocate GEM object\n");
349 int vbox_dumb_create(struct drm_file *file,
350 struct drm_device *dev, struct drm_mode_create_dumb *args)
352 struct vbox_private *vbox =
353 container_of(dev, struct vbox_private, ddev);
354 struct drm_gem_object *gobj;
358 args->pitch = args->width * ((args->bpp + 7) / 8);
359 args->size = args->pitch * args->height;
361 ret = vbox_gem_create(vbox, args->size, false, &gobj);
365 ret = drm_gem_handle_create(file, gobj, &handle);
366 drm_gem_object_put_unlocked(gobj);
370 args->handle = handle;
375 void vbox_gem_free_object(struct drm_gem_object *obj)
377 struct vbox_bo *vbox_bo = gem_to_vbox_bo(obj);
379 ttm_bo_put(&vbox_bo->bo);
382 static inline u64 vbox_bo_mmap_offset(struct vbox_bo *bo)
384 return drm_vma_node_offset_addr(&bo->bo.vma_node);
388 vbox_dumb_mmap_offset(struct drm_file *file,
389 struct drm_device *dev,
390 u32 handle, u64 *offset)
392 struct drm_gem_object *obj;
396 mutex_lock(&dev->struct_mutex);
397 obj = drm_gem_object_lookup(file, handle);
403 bo = gem_to_vbox_bo(obj);
404 *offset = vbox_bo_mmap_offset(bo);
406 drm_gem_object_put(obj);
410 mutex_unlock(&dev->struct_mutex);