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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c1879
1 files changed, 1879 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
new file mode 100644
index 000000000..0090abe89
--- /dev/null
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
@@ -0,0 +1,1879 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/******************************************************************************
+ *
+ * COPYRIGHT (C) 2014-2022 VMware, Inc., Palo Alto, CA., USA
+ *
+ * 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 above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * 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.
+ *
+ ******************************************************************************/
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_damage_helper.h>
+#include <drm/drm_fourcc.h>
+
+#include "vmwgfx_kms.h"
+#include "vmw_surface_cache.h"
+
+#define vmw_crtc_to_stdu(x) \
+ container_of(x, struct vmw_screen_target_display_unit, base.crtc)
+#define vmw_encoder_to_stdu(x) \
+ container_of(x, struct vmw_screen_target_display_unit, base.encoder)
+#define vmw_connector_to_stdu(x) \
+ container_of(x, struct vmw_screen_target_display_unit, base.connector)
+
+
+
+enum stdu_content_type {
+ SAME_AS_DISPLAY = 0,
+ SEPARATE_SURFACE,
+ SEPARATE_BO
+};
+
+/**
+ * struct vmw_stdu_dirty - closure structure for the update functions
+ *
+ * @base: The base type we derive from. Used by vmw_kms_helper_dirty().
+ * @transfer: Transfer direction for DMA command.
+ * @left: Left side of bounding box.
+ * @right: Right side of bounding box.
+ * @top: Top side of bounding box.
+ * @bottom: Bottom side of bounding box.
+ * @fb_left: Left side of the framebuffer/content bounding box
+ * @fb_top: Top of the framebuffer/content bounding box
+ * @pitch: framebuffer pitch (stride)
+ * @buf: buffer object when DMA-ing between buffer and screen targets.
+ * @sid: Surface ID when copying between surface and screen targets.
+ */
+struct vmw_stdu_dirty {
+ struct vmw_kms_dirty base;
+ SVGA3dTransferType transfer;
+ s32 left, right, top, bottom;
+ s32 fb_left, fb_top;
+ u32 pitch;
+ union {
+ struct vmw_buffer_object *buf;
+ u32 sid;
+ };
+};
+
+/*
+ * SVGA commands that are used by this code. Please see the device headers
+ * for explanation.
+ */
+struct vmw_stdu_update {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdUpdateGBScreenTarget body;
+};
+
+struct vmw_stdu_dma {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdSurfaceDMA body;
+};
+
+struct vmw_stdu_surface_copy {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdSurfaceCopy body;
+};
+
+struct vmw_stdu_update_gb_image {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdUpdateGBImage body;
+};
+
+/**
+ * struct vmw_screen_target_display_unit
+ *
+ * @base: VMW specific DU structure
+ * @display_srf: surface to be displayed. The dimension of this will always
+ * match the display mode. If the display mode matches
+ * content_vfbs dimensions, then this is a pointer into the
+ * corresponding field in content_vfbs. If not, then this
+ * is a separate buffer to which content_vfbs will blit to.
+ * @content_fb_type: content_fb type
+ * @display_width: display width
+ * @display_height: display height
+ * @defined: true if the current display unit has been initialized
+ * @cpp: Bytes per pixel
+ */
+struct vmw_screen_target_display_unit {
+ struct vmw_display_unit base;
+ struct vmw_surface *display_srf;
+ enum stdu_content_type content_fb_type;
+ s32 display_width, display_height;
+
+ bool defined;
+
+ /* For CPU Blit */
+ unsigned int cpp;
+};
+
+
+
+static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu);
+
+
+
+/******************************************************************************
+ * Screen Target Display Unit CRTC Functions
+ *****************************************************************************/
+
+static bool vmw_stdu_use_cpu_blit(const struct vmw_private *vmw)
+{
+ return !(vmw->capabilities & SVGA_CAP_3D) || vmw->vram_size < (32 * 1024 * 1024);
+}
+
+
+/**
+ * vmw_stdu_crtc_destroy - cleans up the STDU
+ *
+ * @crtc: used to get a reference to the containing STDU
+ */
+static void vmw_stdu_crtc_destroy(struct drm_crtc *crtc)
+{
+ vmw_stdu_destroy(vmw_crtc_to_stdu(crtc));
+}
+
+/**
+ * vmw_stdu_define_st - Defines a Screen Target
+ *
+ * @dev_priv: VMW DRM device
+ * @stdu: display unit to create a Screen Target for
+ * @mode: The mode to set.
+ * @crtc_x: X coordinate of screen target relative to framebuffer origin.
+ * @crtc_y: Y coordinate of screen target relative to framebuffer origin.
+ *
+ * Creates a STDU that we can used later. This function is called whenever the
+ * framebuffer size changes.
+ *
+ * RETURNs:
+ * 0 on success, error code on failure
+ */
+static int vmw_stdu_define_st(struct vmw_private *dev_priv,
+ struct vmw_screen_target_display_unit *stdu,
+ struct drm_display_mode *mode,
+ int crtc_x, int crtc_y)
+{
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdDefineGBScreenTarget body;
+ } *cmd;
+
+ cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
+ if (unlikely(cmd == NULL))
+ return -ENOMEM;
+
+ cmd->header.id = SVGA_3D_CMD_DEFINE_GB_SCREENTARGET;
+ cmd->header.size = sizeof(cmd->body);
+
+ cmd->body.stid = stdu->base.unit;
+ cmd->body.width = mode->hdisplay;
+ cmd->body.height = mode->vdisplay;
+ cmd->body.flags = (0 == cmd->body.stid) ? SVGA_STFLAG_PRIMARY : 0;
+ cmd->body.dpi = 0;
+ cmd->body.xRoot = crtc_x;
+ cmd->body.yRoot = crtc_y;
+
+ stdu->base.set_gui_x = cmd->body.xRoot;
+ stdu->base.set_gui_y = cmd->body.yRoot;
+
+ vmw_cmd_commit(dev_priv, sizeof(*cmd));
+
+ stdu->defined = true;
+ stdu->display_width = mode->hdisplay;
+ stdu->display_height = mode->vdisplay;
+
+ return 0;
+}
+
+
+
+/**
+ * vmw_stdu_bind_st - Binds a surface to a Screen Target
+ *
+ * @dev_priv: VMW DRM device
+ * @stdu: display unit affected
+ * @res: Buffer to bind to the screen target. Set to NULL to blank screen.
+ *
+ * Binding a surface to a Screen Target the same as flipping
+ */
+static int vmw_stdu_bind_st(struct vmw_private *dev_priv,
+ struct vmw_screen_target_display_unit *stdu,
+ const struct vmw_resource *res)
+{
+ SVGA3dSurfaceImageId image;
+
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdBindGBScreenTarget body;
+ } *cmd;
+
+
+ if (!stdu->defined) {
+ DRM_ERROR("No screen target defined\n");
+ return -EINVAL;
+ }
+
+ /* Set up image using information in vfb */
+ memset(&image, 0, sizeof(image));
+ image.sid = res ? res->id : SVGA3D_INVALID_ID;
+
+ cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
+ if (unlikely(cmd == NULL))
+ return -ENOMEM;
+
+ cmd->header.id = SVGA_3D_CMD_BIND_GB_SCREENTARGET;
+ cmd->header.size = sizeof(cmd->body);
+
+ cmd->body.stid = stdu->base.unit;
+ cmd->body.image = image;
+
+ vmw_cmd_commit(dev_priv, sizeof(*cmd));
+
+ return 0;
+}
+
+/**
+ * vmw_stdu_populate_update - populate an UPDATE_GB_SCREENTARGET command with a
+ * bounding box.
+ *
+ * @cmd: Pointer to command stream.
+ * @unit: Screen target unit.
+ * @left: Left side of bounding box.
+ * @right: Right side of bounding box.
+ * @top: Top side of bounding box.
+ * @bottom: Bottom side of bounding box.
+ */
+static void vmw_stdu_populate_update(void *cmd, int unit,
+ s32 left, s32 right, s32 top, s32 bottom)
+{
+ struct vmw_stdu_update *update = cmd;
+
+ update->header.id = SVGA_3D_CMD_UPDATE_GB_SCREENTARGET;
+ update->header.size = sizeof(update->body);
+
+ update->body.stid = unit;
+ update->body.rect.x = left;
+ update->body.rect.y = top;
+ update->body.rect.w = right - left;
+ update->body.rect.h = bottom - top;
+}
+
+/**
+ * vmw_stdu_update_st - Full update of a Screen Target
+ *
+ * @dev_priv: VMW DRM device
+ * @stdu: display unit affected
+ *
+ * This function needs to be called whenever the content of a screen
+ * target has changed completely. Typically as a result of a backing
+ * surface change.
+ *
+ * RETURNS:
+ * 0 on success, error code on failure
+ */
+static int vmw_stdu_update_st(struct vmw_private *dev_priv,
+ struct vmw_screen_target_display_unit *stdu)
+{
+ struct vmw_stdu_update *cmd;
+
+ if (!stdu->defined) {
+ DRM_ERROR("No screen target defined");
+ return -EINVAL;
+ }
+
+ cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
+ if (unlikely(cmd == NULL))
+ return -ENOMEM;
+
+ vmw_stdu_populate_update(cmd, stdu->base.unit,
+ 0, stdu->display_width,
+ 0, stdu->display_height);
+
+ vmw_cmd_commit(dev_priv, sizeof(*cmd));
+
+ return 0;
+}
+
+
+
+/**
+ * vmw_stdu_destroy_st - Destroy a Screen Target
+ *
+ * @dev_priv: VMW DRM device
+ * @stdu: display unit to destroy
+ */
+static int vmw_stdu_destroy_st(struct vmw_private *dev_priv,
+ struct vmw_screen_target_display_unit *stdu)
+{
+ int ret;
+
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdDestroyGBScreenTarget body;
+ } *cmd;
+
+
+ /* Nothing to do if not successfully defined */
+ if (unlikely(!stdu->defined))
+ return 0;
+
+ cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
+ if (unlikely(cmd == NULL))
+ return -ENOMEM;
+
+ cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SCREENTARGET;
+ cmd->header.size = sizeof(cmd->body);
+
+ cmd->body.stid = stdu->base.unit;
+
+ vmw_cmd_commit(dev_priv, sizeof(*cmd));
+
+ /* Force sync */
+ ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ);
+ if (unlikely(ret != 0))
+ DRM_ERROR("Failed to sync with HW");
+
+ stdu->defined = false;
+ stdu->display_width = 0;
+ stdu->display_height = 0;
+
+ return ret;
+}
+
+
+/**
+ * vmw_stdu_crtc_mode_set_nofb - Updates screen target size
+ *
+ * @crtc: CRTC associated with the screen target
+ *
+ * This function defines/destroys a screen target
+ *
+ */
+static void vmw_stdu_crtc_mode_set_nofb(struct drm_crtc *crtc)
+{
+ struct vmw_private *dev_priv;
+ struct vmw_screen_target_display_unit *stdu;
+ struct drm_connector_state *conn_state;
+ struct vmw_connector_state *vmw_conn_state;
+ int x, y, ret;
+
+ stdu = vmw_crtc_to_stdu(crtc);
+ dev_priv = vmw_priv(crtc->dev);
+ conn_state = stdu->base.connector.state;
+ vmw_conn_state = vmw_connector_state_to_vcs(conn_state);
+
+ if (stdu->defined) {
+ ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
+ if (ret)
+ DRM_ERROR("Failed to blank CRTC\n");
+
+ (void) vmw_stdu_update_st(dev_priv, stdu);
+
+ ret = vmw_stdu_destroy_st(dev_priv, stdu);
+ if (ret)
+ DRM_ERROR("Failed to destroy Screen Target\n");
+
+ stdu->content_fb_type = SAME_AS_DISPLAY;
+ }
+
+ if (!crtc->state->enable)
+ return;
+
+ x = vmw_conn_state->gui_x;
+ y = vmw_conn_state->gui_y;
+
+ vmw_svga_enable(dev_priv);
+ ret = vmw_stdu_define_st(dev_priv, stdu, &crtc->mode, x, y);
+
+ if (ret)
+ DRM_ERROR("Failed to define Screen Target of size %dx%d\n",
+ crtc->x, crtc->y);
+}
+
+
+static void vmw_stdu_crtc_helper_prepare(struct drm_crtc *crtc)
+{
+}
+
+static void vmw_stdu_crtc_atomic_enable(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
+{
+}
+
+static void vmw_stdu_crtc_atomic_disable(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
+{
+ struct vmw_private *dev_priv;
+ struct vmw_screen_target_display_unit *stdu;
+ int ret;
+
+
+ if (!crtc) {
+ DRM_ERROR("CRTC is NULL\n");
+ return;
+ }
+
+ stdu = vmw_crtc_to_stdu(crtc);
+ dev_priv = vmw_priv(crtc->dev);
+
+ if (stdu->defined) {
+ ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
+ if (ret)
+ DRM_ERROR("Failed to blank CRTC\n");
+
+ (void) vmw_stdu_update_st(dev_priv, stdu);
+
+ ret = vmw_stdu_destroy_st(dev_priv, stdu);
+ if (ret)
+ DRM_ERROR("Failed to destroy Screen Target\n");
+
+ stdu->content_fb_type = SAME_AS_DISPLAY;
+ }
+}
+
+/**
+ * vmw_stdu_bo_clip - Callback to encode a suface DMA command cliprect
+ *
+ * @dirty: The closure structure.
+ *
+ * Encodes a surface DMA command cliprect and updates the bounding box
+ * for the DMA.
+ */
+static void vmw_stdu_bo_clip(struct vmw_kms_dirty *dirty)
+{
+ struct vmw_stdu_dirty *ddirty =
+ container_of(dirty, struct vmw_stdu_dirty, base);
+ struct vmw_stdu_dma *cmd = dirty->cmd;
+ struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
+
+ blit += dirty->num_hits;
+ blit->srcx = dirty->fb_x;
+ blit->srcy = dirty->fb_y;
+ blit->x = dirty->unit_x1;
+ blit->y = dirty->unit_y1;
+ blit->d = 1;
+ blit->w = dirty->unit_x2 - dirty->unit_x1;
+ blit->h = dirty->unit_y2 - dirty->unit_y1;
+ dirty->num_hits++;
+
+ if (ddirty->transfer != SVGA3D_WRITE_HOST_VRAM)
+ return;
+
+ /* Destination bounding box */
+ ddirty->left = min_t(s32, ddirty->left, dirty->unit_x1);
+ ddirty->top = min_t(s32, ddirty->top, dirty->unit_y1);
+ ddirty->right = max_t(s32, ddirty->right, dirty->unit_x2);
+ ddirty->bottom = max_t(s32, ddirty->bottom, dirty->unit_y2);
+}
+
+/**
+ * vmw_stdu_bo_fifo_commit - Callback to fill in and submit a DMA command.
+ *
+ * @dirty: The closure structure.
+ *
+ * Fills in the missing fields in a DMA command, and optionally encodes
+ * a screen target update command, depending on transfer direction.
+ */
+static void vmw_stdu_bo_fifo_commit(struct vmw_kms_dirty *dirty)
+{
+ struct vmw_stdu_dirty *ddirty =
+ container_of(dirty, struct vmw_stdu_dirty, base);
+ struct vmw_screen_target_display_unit *stdu =
+ container_of(dirty->unit, typeof(*stdu), base);
+ struct vmw_stdu_dma *cmd = dirty->cmd;
+ struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
+ SVGA3dCmdSurfaceDMASuffix *suffix =
+ (SVGA3dCmdSurfaceDMASuffix *) &blit[dirty->num_hits];
+ size_t blit_size = sizeof(*blit) * dirty->num_hits + sizeof(*suffix);
+
+ if (!dirty->num_hits) {
+ vmw_cmd_commit(dirty->dev_priv, 0);
+ return;
+ }
+
+ cmd->header.id = SVGA_3D_CMD_SURFACE_DMA;
+ cmd->header.size = sizeof(cmd->body) + blit_size;
+ vmw_bo_get_guest_ptr(&ddirty->buf->base, &cmd->body.guest.ptr);
+ cmd->body.guest.pitch = ddirty->pitch;
+ cmd->body.host.sid = stdu->display_srf->res.id;
+ cmd->body.host.face = 0;
+ cmd->body.host.mipmap = 0;
+ cmd->body.transfer = ddirty->transfer;
+ suffix->suffixSize = sizeof(*suffix);
+ suffix->maximumOffset = ddirty->buf->base.base.size;
+
+ if (ddirty->transfer == SVGA3D_WRITE_HOST_VRAM) {
+ blit_size += sizeof(struct vmw_stdu_update);
+
+ vmw_stdu_populate_update(&suffix[1], stdu->base.unit,
+ ddirty->left, ddirty->right,
+ ddirty->top, ddirty->bottom);
+ }
+
+ vmw_cmd_commit(dirty->dev_priv, sizeof(*cmd) + blit_size);
+
+ stdu->display_srf->res.res_dirty = true;
+ ddirty->left = ddirty->top = S32_MAX;
+ ddirty->right = ddirty->bottom = S32_MIN;
+}
+
+
+/**
+ * vmw_stdu_bo_cpu_clip - Callback to encode a CPU blit
+ *
+ * @dirty: The closure structure.
+ *
+ * This function calculates the bounding box for all the incoming clips.
+ */
+static void vmw_stdu_bo_cpu_clip(struct vmw_kms_dirty *dirty)
+{
+ struct vmw_stdu_dirty *ddirty =
+ container_of(dirty, struct vmw_stdu_dirty, base);
+
+ dirty->num_hits = 1;
+
+ /* Calculate destination bounding box */
+ ddirty->left = min_t(s32, ddirty->left, dirty->unit_x1);
+ ddirty->top = min_t(s32, ddirty->top, dirty->unit_y1);
+ ddirty->right = max_t(s32, ddirty->right, dirty->unit_x2);
+ ddirty->bottom = max_t(s32, ddirty->bottom, dirty->unit_y2);
+
+ /*
+ * Calculate content bounding box. We only need the top-left
+ * coordinate because width and height will be the same as the
+ * destination bounding box above
+ */
+ ddirty->fb_left = min_t(s32, ddirty->fb_left, dirty->fb_x);
+ ddirty->fb_top = min_t(s32, ddirty->fb_top, dirty->fb_y);
+}
+
+
+/**
+ * vmw_stdu_bo_cpu_commit - Callback to do a CPU blit from buffer object
+ *
+ * @dirty: The closure structure.
+ *
+ * For the special case when we cannot create a proxy surface in a
+ * 2D VM, we have to do a CPU blit ourselves.
+ */
+static void vmw_stdu_bo_cpu_commit(struct vmw_kms_dirty *dirty)
+{
+ struct vmw_stdu_dirty *ddirty =
+ container_of(dirty, struct vmw_stdu_dirty, base);
+ struct vmw_screen_target_display_unit *stdu =
+ container_of(dirty->unit, typeof(*stdu), base);
+ s32 width, height;
+ s32 src_pitch, dst_pitch;
+ struct ttm_buffer_object *src_bo, *dst_bo;
+ u32 src_offset, dst_offset;
+ struct vmw_diff_cpy diff = VMW_CPU_BLIT_DIFF_INITIALIZER(stdu->cpp);
+
+ if (!dirty->num_hits)
+ return;
+
+ width = ddirty->right - ddirty->left;
+ height = ddirty->bottom - ddirty->top;
+
+ if (width == 0 || height == 0)
+ return;
+
+ /* Assume we are blitting from Guest (bo) to Host (display_srf) */
+ dst_pitch = stdu->display_srf->metadata.base_size.width * stdu->cpp;
+ dst_bo = &stdu->display_srf->res.backup->base;
+ dst_offset = ddirty->top * dst_pitch + ddirty->left * stdu->cpp;
+
+ src_pitch = ddirty->pitch;
+ src_bo = &ddirty->buf->base;
+ src_offset = ddirty->fb_top * src_pitch + ddirty->fb_left * stdu->cpp;
+
+ /* Swap src and dst if the assumption was wrong. */
+ if (ddirty->transfer != SVGA3D_WRITE_HOST_VRAM) {
+ swap(dst_pitch, src_pitch);
+ swap(dst_bo, src_bo);
+ swap(src_offset, dst_offset);
+ }
+
+ (void) vmw_bo_cpu_blit(dst_bo, dst_offset, dst_pitch,
+ src_bo, src_offset, src_pitch,
+ width * stdu->cpp, height, &diff);
+
+ if (ddirty->transfer == SVGA3D_WRITE_HOST_VRAM &&
+ drm_rect_visible(&diff.rect)) {
+ struct vmw_private *dev_priv;
+ struct vmw_stdu_update *cmd;
+ struct drm_clip_rect region;
+ int ret;
+
+ /* We are updating the actual surface, not a proxy */
+ region.x1 = diff.rect.x1;
+ region.x2 = diff.rect.x2;
+ region.y1 = diff.rect.y1;
+ region.y2 = diff.rect.y2;
+ ret = vmw_kms_update_proxy(&stdu->display_srf->res, &region,
+ 1, 1);
+ if (ret)
+ goto out_cleanup;
+
+
+ dev_priv = vmw_priv(stdu->base.crtc.dev);
+ cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
+ if (!cmd)
+ goto out_cleanup;
+
+ vmw_stdu_populate_update(cmd, stdu->base.unit,
+ region.x1, region.x2,
+ region.y1, region.y2);
+
+ vmw_cmd_commit(dev_priv, sizeof(*cmd));
+ }
+
+out_cleanup:
+ ddirty->left = ddirty->top = ddirty->fb_left = ddirty->fb_top = S32_MAX;
+ ddirty->right = ddirty->bottom = S32_MIN;
+}
+
+/**
+ * vmw_kms_stdu_dma - Perform a DMA transfer between a buffer-object backed
+ * framebuffer and the screen target system.
+ *
+ * @dev_priv: Pointer to the device private structure.
+ * @file_priv: Pointer to a struct drm-file identifying the caller. May be
+ * set to NULL, but then @user_fence_rep must also be set to NULL.
+ * @vfb: Pointer to the buffer-object backed framebuffer.
+ * @user_fence_rep: User-space provided structure for fence information.
+ * @clips: Array of clip rects. Either @clips or @vclips must be NULL.
+ * @vclips: Alternate array of clip rects. Either @clips or @vclips must
+ * be NULL.
+ * @num_clips: Number of clip rects in @clips or @vclips.
+ * @increment: Increment to use when looping over @clips or @vclips.
+ * @to_surface: Whether to DMA to the screen target system as opposed to
+ * from the screen target system.
+ * @interruptible: Whether to perform waits interruptible if possible.
+ * @crtc: If crtc is passed, perform stdu dma on that crtc only.
+ *
+ * If DMA-ing till the screen target system, the function will also notify
+ * the screen target system that a bounding box of the cliprects has been
+ * updated.
+ * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
+ * interrupted.
+ */
+int vmw_kms_stdu_dma(struct vmw_private *dev_priv,
+ struct drm_file *file_priv,
+ struct vmw_framebuffer *vfb,
+ struct drm_vmw_fence_rep __user *user_fence_rep,
+ struct drm_clip_rect *clips,
+ struct drm_vmw_rect *vclips,
+ uint32_t num_clips,
+ int increment,
+ bool to_surface,
+ bool interruptible,
+ struct drm_crtc *crtc)
+{
+ struct vmw_buffer_object *buf =
+ container_of(vfb, struct vmw_framebuffer_bo, base)->buffer;
+ struct vmw_stdu_dirty ddirty;
+ int ret;
+ bool cpu_blit = vmw_stdu_use_cpu_blit(dev_priv);
+ DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
+
+ /*
+ * VMs without 3D support don't have the surface DMA command and
+ * we'll be using a CPU blit, and the framebuffer should be moved out
+ * of VRAM.
+ */
+ ret = vmw_validation_add_bo(&val_ctx, buf, false, cpu_blit);
+ if (ret)
+ return ret;
+
+ ret = vmw_validation_prepare(&val_ctx, NULL, interruptible);
+ if (ret)
+ goto out_unref;
+
+ ddirty.transfer = (to_surface) ? SVGA3D_WRITE_HOST_VRAM :
+ SVGA3D_READ_HOST_VRAM;
+ ddirty.left = ddirty.top = S32_MAX;
+ ddirty.right = ddirty.bottom = S32_MIN;
+ ddirty.fb_left = ddirty.fb_top = S32_MAX;
+ ddirty.pitch = vfb->base.pitches[0];
+ ddirty.buf = buf;
+ ddirty.base.fifo_commit = vmw_stdu_bo_fifo_commit;
+ ddirty.base.clip = vmw_stdu_bo_clip;
+ ddirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_dma) +
+ num_clips * sizeof(SVGA3dCopyBox) +
+ sizeof(SVGA3dCmdSurfaceDMASuffix);
+ if (to_surface)
+ ddirty.base.fifo_reserve_size += sizeof(struct vmw_stdu_update);
+
+
+ if (cpu_blit) {
+ ddirty.base.fifo_commit = vmw_stdu_bo_cpu_commit;
+ ddirty.base.clip = vmw_stdu_bo_cpu_clip;
+ ddirty.base.fifo_reserve_size = 0;
+ }
+
+ ddirty.base.crtc = crtc;
+
+ ret = vmw_kms_helper_dirty(dev_priv, vfb, clips, vclips,
+ 0, 0, num_clips, increment, &ddirty.base);
+
+ vmw_kms_helper_validation_finish(dev_priv, file_priv, &val_ctx, NULL,
+ user_fence_rep);
+ return ret;
+
+out_unref:
+ vmw_validation_unref_lists(&val_ctx);
+ return ret;
+}
+
+/**
+ * vmw_kms_stdu_surface_clip - Callback to encode a surface copy command cliprect
+ *
+ * @dirty: The closure structure.
+ *
+ * Encodes a surface copy command cliprect and updates the bounding box
+ * for the copy.
+ */
+static void vmw_kms_stdu_surface_clip(struct vmw_kms_dirty *dirty)
+{
+ struct vmw_stdu_dirty *sdirty =
+ container_of(dirty, struct vmw_stdu_dirty, base);
+ struct vmw_stdu_surface_copy *cmd = dirty->cmd;
+ struct vmw_screen_target_display_unit *stdu =
+ container_of(dirty->unit, typeof(*stdu), base);
+
+ if (sdirty->sid != stdu->display_srf->res.id) {
+ struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
+
+ blit += dirty->num_hits;
+ blit->srcx = dirty->fb_x;
+ blit->srcy = dirty->fb_y;
+ blit->x = dirty->unit_x1;
+ blit->y = dirty->unit_y1;
+ blit->d = 1;
+ blit->w = dirty->unit_x2 - dirty->unit_x1;
+ blit->h = dirty->unit_y2 - dirty->unit_y1;
+ }
+
+ dirty->num_hits++;
+
+ /* Destination bounding box */
+ sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1);
+ sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1);
+ sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2);
+ sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2);
+}
+
+/**
+ * vmw_kms_stdu_surface_fifo_commit - Callback to fill in and submit a surface
+ * copy command.
+ *
+ * @dirty: The closure structure.
+ *
+ * Fills in the missing fields in a surface copy command, and encodes a screen
+ * target update command.
+ */
+static void vmw_kms_stdu_surface_fifo_commit(struct vmw_kms_dirty *dirty)
+{
+ struct vmw_stdu_dirty *sdirty =
+ container_of(dirty, struct vmw_stdu_dirty, base);
+ struct vmw_screen_target_display_unit *stdu =
+ container_of(dirty->unit, typeof(*stdu), base);
+ struct vmw_stdu_surface_copy *cmd = dirty->cmd;
+ struct vmw_stdu_update *update;
+ size_t blit_size = sizeof(SVGA3dCopyBox) * dirty->num_hits;
+ size_t commit_size;
+
+ if (!dirty->num_hits) {
+ vmw_cmd_commit(dirty->dev_priv, 0);
+ return;
+ }
+
+ if (sdirty->sid != stdu->display_srf->res.id) {
+ struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
+
+ cmd->header.id = SVGA_3D_CMD_SURFACE_COPY;
+ cmd->header.size = sizeof(cmd->body) + blit_size;
+ cmd->body.src.sid = sdirty->sid;
+ cmd->body.dest.sid = stdu->display_srf->res.id;
+ update = (struct vmw_stdu_update *) &blit[dirty->num_hits];
+ commit_size = sizeof(*cmd) + blit_size + sizeof(*update);
+ stdu->display_srf->res.res_dirty = true;
+ } else {
+ update = dirty->cmd;
+ commit_size = sizeof(*update);
+ }
+
+ vmw_stdu_populate_update(update, stdu->base.unit, sdirty->left,
+ sdirty->right, sdirty->top, sdirty->bottom);
+
+ vmw_cmd_commit(dirty->dev_priv, commit_size);
+
+ sdirty->left = sdirty->top = S32_MAX;
+ sdirty->right = sdirty->bottom = S32_MIN;
+}
+
+/**
+ * vmw_kms_stdu_surface_dirty - Dirty part of a surface backed framebuffer
+ *
+ * @dev_priv: Pointer to the device private structure.
+ * @framebuffer: Pointer to the surface-buffer backed framebuffer.
+ * @clips: Array of clip rects. Either @clips or @vclips must be NULL.
+ * @vclips: Alternate array of clip rects. Either @clips or @vclips must
+ * be NULL.
+ * @srf: Pointer to surface to blit from. If NULL, the surface attached
+ * to @framebuffer will be used.
+ * @dest_x: X coordinate offset to align @srf with framebuffer coordinates.
+ * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates.
+ * @num_clips: Number of clip rects in @clips.
+ * @inc: Increment to use when looping over @clips.
+ * @out_fence: If non-NULL, will return a ref-counted pointer to a
+ * struct vmw_fence_obj. The returned fence pointer may be NULL in which
+ * case the device has already synchronized.
+ * @crtc: If crtc is passed, perform surface dirty on that crtc only.
+ *
+ * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
+ * interrupted.
+ */
+int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv,
+ struct vmw_framebuffer *framebuffer,
+ struct drm_clip_rect *clips,
+ struct drm_vmw_rect *vclips,
+ struct vmw_resource *srf,
+ s32 dest_x,
+ s32 dest_y,
+ unsigned num_clips, int inc,
+ struct vmw_fence_obj **out_fence,
+ struct drm_crtc *crtc)
+{
+ struct vmw_framebuffer_surface *vfbs =
+ container_of(framebuffer, typeof(*vfbs), base);
+ struct vmw_stdu_dirty sdirty;
+ DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
+ int ret;
+
+ if (!srf)
+ srf = &vfbs->surface->res;
+
+ ret = vmw_validation_add_resource(&val_ctx, srf, 0, VMW_RES_DIRTY_NONE,
+ NULL, NULL);
+ if (ret)
+ return ret;
+
+ ret = vmw_validation_prepare(&val_ctx, &dev_priv->cmdbuf_mutex, true);
+ if (ret)
+ goto out_unref;
+
+ if (vfbs->is_bo_proxy) {
+ ret = vmw_kms_update_proxy(srf, clips, num_clips, inc);
+ if (ret)
+ goto out_finish;
+ }
+
+ sdirty.base.fifo_commit = vmw_kms_stdu_surface_fifo_commit;
+ sdirty.base.clip = vmw_kms_stdu_surface_clip;
+ sdirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_surface_copy) +
+ sizeof(SVGA3dCopyBox) * num_clips +
+ sizeof(struct vmw_stdu_update);
+ sdirty.base.crtc = crtc;
+ sdirty.sid = srf->id;
+ sdirty.left = sdirty.top = S32_MAX;
+ sdirty.right = sdirty.bottom = S32_MIN;
+
+ ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
+ dest_x, dest_y, num_clips, inc,
+ &sdirty.base);
+out_finish:
+ vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence,
+ NULL);
+
+ return ret;
+
+out_unref:
+ vmw_validation_unref_lists(&val_ctx);
+ return ret;
+}
+
+
+/*
+ * Screen Target CRTC dispatch table
+ */
+static const struct drm_crtc_funcs vmw_stdu_crtc_funcs = {
+ .gamma_set = vmw_du_crtc_gamma_set,
+ .destroy = vmw_stdu_crtc_destroy,
+ .reset = vmw_du_crtc_reset,
+ .atomic_duplicate_state = vmw_du_crtc_duplicate_state,
+ .atomic_destroy_state = vmw_du_crtc_destroy_state,
+ .set_config = drm_atomic_helper_set_config,
+ .page_flip = drm_atomic_helper_page_flip,
+};
+
+
+
+/******************************************************************************
+ * Screen Target Display Unit Encoder Functions
+ *****************************************************************************/
+
+/**
+ * vmw_stdu_encoder_destroy - cleans up the STDU
+ *
+ * @encoder: used the get the containing STDU
+ *
+ * vmwgfx cleans up crtc/encoder/connector all at the same time so technically
+ * this can be a no-op. Nevertheless, it doesn't hurt of have this in case
+ * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't
+ * get called.
+ */
+static void vmw_stdu_encoder_destroy(struct drm_encoder *encoder)
+{
+ vmw_stdu_destroy(vmw_encoder_to_stdu(encoder));
+}
+
+static const struct drm_encoder_funcs vmw_stdu_encoder_funcs = {
+ .destroy = vmw_stdu_encoder_destroy,
+};
+
+
+
+/******************************************************************************
+ * Screen Target Display Unit Connector Functions
+ *****************************************************************************/
+
+/**
+ * vmw_stdu_connector_destroy - cleans up the STDU
+ *
+ * @connector: used to get the containing STDU
+ *
+ * vmwgfx cleans up crtc/encoder/connector all at the same time so technically
+ * this can be a no-op. Nevertheless, it doesn't hurt of have this in case
+ * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't
+ * get called.
+ */
+static void vmw_stdu_connector_destroy(struct drm_connector *connector)
+{
+ vmw_stdu_destroy(vmw_connector_to_stdu(connector));
+}
+
+
+
+static const struct drm_connector_funcs vmw_stdu_connector_funcs = {
+ .dpms = vmw_du_connector_dpms,
+ .detect = vmw_du_connector_detect,
+ .fill_modes = vmw_du_connector_fill_modes,
+ .destroy = vmw_stdu_connector_destroy,
+ .reset = vmw_du_connector_reset,
+ .atomic_duplicate_state = vmw_du_connector_duplicate_state,
+ .atomic_destroy_state = vmw_du_connector_destroy_state,
+};
+
+
+static const struct
+drm_connector_helper_funcs vmw_stdu_connector_helper_funcs = {
+};
+
+
+
+/******************************************************************************
+ * Screen Target Display Plane Functions
+ *****************************************************************************/
+
+
+
+/**
+ * vmw_stdu_primary_plane_cleanup_fb - Unpins the display surface
+ *
+ * @plane: display plane
+ * @old_state: Contains the FB to clean up
+ *
+ * Unpins the display surface
+ *
+ * Returns 0 on success
+ */
+static void
+vmw_stdu_primary_plane_cleanup_fb(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+ struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
+
+ if (vps->surf)
+ WARN_ON(!vps->pinned);
+
+ vmw_du_plane_cleanup_fb(plane, old_state);
+
+ vps->content_fb_type = SAME_AS_DISPLAY;
+ vps->cpp = 0;
+}
+
+
+
+/**
+ * vmw_stdu_primary_plane_prepare_fb - Readies the display surface
+ *
+ * @plane: display plane
+ * @new_state: info on the new plane state, including the FB
+ *
+ * This function allocates a new display surface if the content is
+ * backed by a buffer object. The display surface is pinned here, and it'll
+ * be unpinned in .cleanup_fb()
+ *
+ * Returns 0 on success
+ */
+static int
+vmw_stdu_primary_plane_prepare_fb(struct drm_plane *plane,
+ struct drm_plane_state *new_state)
+{
+ struct vmw_private *dev_priv = vmw_priv(plane->dev);
+ struct drm_framebuffer *new_fb = new_state->fb;
+ struct vmw_framebuffer *vfb;
+ struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
+ enum stdu_content_type new_content_type;
+ struct vmw_framebuffer_surface *new_vfbs;
+ uint32_t hdisplay = new_state->crtc_w, vdisplay = new_state->crtc_h;
+ int ret;
+
+ /* No FB to prepare */
+ if (!new_fb) {
+ if (vps->surf) {
+ WARN_ON(vps->pinned != 0);
+ vmw_surface_unreference(&vps->surf);
+ }
+
+ return 0;
+ }
+
+ vfb = vmw_framebuffer_to_vfb(new_fb);
+ new_vfbs = (vfb->bo) ? NULL : vmw_framebuffer_to_vfbs(new_fb);
+
+ if (new_vfbs &&
+ new_vfbs->surface->metadata.base_size.width == hdisplay &&
+ new_vfbs->surface->metadata.base_size.height == vdisplay)
+ new_content_type = SAME_AS_DISPLAY;
+ else if (vfb->bo)
+ new_content_type = SEPARATE_BO;
+ else
+ new_content_type = SEPARATE_SURFACE;
+
+ if (new_content_type != SAME_AS_DISPLAY) {
+ struct vmw_surface_metadata metadata = {0};
+
+ /*
+ * If content buffer is a buffer object, then we have to
+ * construct surface info
+ */
+ if (new_content_type == SEPARATE_BO) {
+
+ switch (new_fb->format->cpp[0]*8) {
+ case 32:
+ metadata.format = SVGA3D_X8R8G8B8;
+ break;
+
+ case 16:
+ metadata.format = SVGA3D_R5G6B5;
+ break;
+
+ case 8:
+ metadata.format = SVGA3D_P8;
+ break;
+
+ default:
+ DRM_ERROR("Invalid format\n");
+ return -EINVAL;
+ }
+
+ metadata.mip_levels[0] = 1;
+ metadata.num_sizes = 1;
+ metadata.scanout = true;
+ } else {
+ metadata = new_vfbs->surface->metadata;
+ }
+
+ metadata.base_size.width = hdisplay;
+ metadata.base_size.height = vdisplay;
+ metadata.base_size.depth = 1;
+
+ if (vps->surf) {
+ struct drm_vmw_size cur_base_size =
+ vps->surf->metadata.base_size;
+
+ if (cur_base_size.width != metadata.base_size.width ||
+ cur_base_size.height != metadata.base_size.height ||
+ vps->surf->metadata.format != metadata.format) {
+ WARN_ON(vps->pinned != 0);
+ vmw_surface_unreference(&vps->surf);
+ }
+
+ }
+
+ if (!vps->surf) {
+ ret = vmw_gb_surface_define(dev_priv, &metadata,
+ &vps->surf);
+ if (ret != 0) {
+ DRM_ERROR("Couldn't allocate STDU surface.\n");
+ return ret;
+ }
+ }
+ } else {
+ /*
+ * prepare_fb and clean_fb should only take care of pinning
+ * and unpinning. References are tracked by state objects.
+ * The only time we add a reference in prepare_fb is if the
+ * state object doesn't have a reference to begin with
+ */
+ if (vps->surf) {
+ WARN_ON(vps->pinned != 0);
+ vmw_surface_unreference(&vps->surf);
+ }
+
+ vps->surf = vmw_surface_reference(new_vfbs->surface);
+ }
+
+ if (vps->surf) {
+
+ /* Pin new surface before flipping */
+ ret = vmw_resource_pin(&vps->surf->res, false);
+ if (ret)
+ goto out_srf_unref;
+
+ vps->pinned++;
+ }
+
+ vps->content_fb_type = new_content_type;
+
+ /*
+ * This should only happen if the buffer object is too large to create a
+ * proxy surface for.
+ * If we are a 2D VM with a buffer object then we have to use CPU blit
+ * so cache these mappings
+ */
+ if (vps->content_fb_type == SEPARATE_BO &&
+ vmw_stdu_use_cpu_blit(dev_priv))
+ vps->cpp = new_fb->pitches[0] / new_fb->width;
+
+ return 0;
+
+out_srf_unref:
+ vmw_surface_unreference(&vps->surf);
+ return ret;
+}
+
+static uint32_t vmw_stdu_bo_fifo_size(struct vmw_du_update_plane *update,
+ uint32_t num_hits)
+{
+ return sizeof(struct vmw_stdu_dma) + sizeof(SVGA3dCopyBox) * num_hits +
+ sizeof(SVGA3dCmdSurfaceDMASuffix) +
+ sizeof(struct vmw_stdu_update);
+}
+
+static uint32_t vmw_stdu_bo_fifo_size_cpu(struct vmw_du_update_plane *update,
+ uint32_t num_hits)
+{
+ return sizeof(struct vmw_stdu_update_gb_image) +
+ sizeof(struct vmw_stdu_update);
+}
+
+static uint32_t vmw_stdu_bo_populate_dma(struct vmw_du_update_plane *update,
+ void *cmd, uint32_t num_hits)
+{
+ struct vmw_screen_target_display_unit *stdu;
+ struct vmw_framebuffer_bo *vfbbo;
+ struct vmw_stdu_dma *cmd_dma = cmd;
+
+ stdu = container_of(update->du, typeof(*stdu), base);
+ vfbbo = container_of(update->vfb, typeof(*vfbbo), base);
+
+ cmd_dma->header.id = SVGA_3D_CMD_SURFACE_DMA;
+ cmd_dma->header.size = sizeof(cmd_dma->body) +
+ sizeof(struct SVGA3dCopyBox) * num_hits +
+ sizeof(SVGA3dCmdSurfaceDMASuffix);
+ vmw_bo_get_guest_ptr(&vfbbo->buffer->base, &cmd_dma->body.guest.ptr);
+ cmd_dma->body.guest.pitch = update->vfb->base.pitches[0];
+ cmd_dma->body.host.sid = stdu->display_srf->res.id;
+ cmd_dma->body.host.face = 0;
+ cmd_dma->body.host.mipmap = 0;
+ cmd_dma->body.transfer = SVGA3D_WRITE_HOST_VRAM;
+
+ return sizeof(*cmd_dma);
+}
+
+static uint32_t vmw_stdu_bo_populate_clip(struct vmw_du_update_plane *update,
+ void *cmd, struct drm_rect *clip,
+ uint32_t fb_x, uint32_t fb_y)
+{
+ struct SVGA3dCopyBox *box = cmd;
+
+ box->srcx = fb_x;
+ box->srcy = fb_y;
+ box->srcz = 0;
+ box->x = clip->x1;
+ box->y = clip->y1;
+ box->z = 0;
+ box->w = drm_rect_width(clip);
+ box->h = drm_rect_height(clip);
+ box->d = 1;
+
+ return sizeof(*box);
+}
+
+static uint32_t vmw_stdu_bo_populate_update(struct vmw_du_update_plane *update,
+ void *cmd, struct drm_rect *bb)
+{
+ struct vmw_screen_target_display_unit *stdu;
+ struct vmw_framebuffer_bo *vfbbo;
+ SVGA3dCmdSurfaceDMASuffix *suffix = cmd;
+
+ stdu = container_of(update->du, typeof(*stdu), base);
+ vfbbo = container_of(update->vfb, typeof(*vfbbo), base);
+
+ suffix->suffixSize = sizeof(*suffix);
+ suffix->maximumOffset = vfbbo->buffer->base.base.size;
+
+ vmw_stdu_populate_update(&suffix[1], stdu->base.unit, bb->x1, bb->x2,
+ bb->y1, bb->y2);
+
+ return sizeof(*suffix) + sizeof(struct vmw_stdu_update);
+}
+
+static uint32_t vmw_stdu_bo_pre_clip_cpu(struct vmw_du_update_plane *update,
+ void *cmd, uint32_t num_hits)
+{
+ struct vmw_du_update_plane_buffer *bo_update =
+ container_of(update, typeof(*bo_update), base);
+
+ bo_update->fb_left = INT_MAX;
+ bo_update->fb_top = INT_MAX;
+
+ return 0;
+}
+
+static uint32_t vmw_stdu_bo_clip_cpu(struct vmw_du_update_plane *update,
+ void *cmd, struct drm_rect *clip,
+ uint32_t fb_x, uint32_t fb_y)
+{
+ struct vmw_du_update_plane_buffer *bo_update =
+ container_of(update, typeof(*bo_update), base);
+
+ bo_update->fb_left = min_t(int, bo_update->fb_left, fb_x);
+ bo_update->fb_top = min_t(int, bo_update->fb_top, fb_y);
+
+ return 0;
+}
+
+static uint32_t
+vmw_stdu_bo_populate_update_cpu(struct vmw_du_update_plane *update, void *cmd,
+ struct drm_rect *bb)
+{
+ struct vmw_du_update_plane_buffer *bo_update;
+ struct vmw_screen_target_display_unit *stdu;
+ struct vmw_framebuffer_bo *vfbbo;
+ struct vmw_diff_cpy diff = VMW_CPU_BLIT_DIFF_INITIALIZER(0);
+ struct vmw_stdu_update_gb_image *cmd_img = cmd;
+ struct vmw_stdu_update *cmd_update;
+ struct ttm_buffer_object *src_bo, *dst_bo;
+ u32 src_offset, dst_offset;
+ s32 src_pitch, dst_pitch;
+ s32 width, height;
+
+ bo_update = container_of(update, typeof(*bo_update), base);
+ stdu = container_of(update->du, typeof(*stdu), base);
+ vfbbo = container_of(update->vfb, typeof(*vfbbo), base);
+
+ width = bb->x2 - bb->x1;
+ height = bb->y2 - bb->y1;
+
+ diff.cpp = stdu->cpp;
+
+ dst_bo = &stdu->display_srf->res.backup->base;
+ dst_pitch = stdu->display_srf->metadata.base_size.width * stdu->cpp;
+ dst_offset = bb->y1 * dst_pitch + bb->x1 * stdu->cpp;
+
+ src_bo = &vfbbo->buffer->base;
+ src_pitch = update->vfb->base.pitches[0];
+ src_offset = bo_update->fb_top * src_pitch + bo_update->fb_left *
+ stdu->cpp;
+
+ (void) vmw_bo_cpu_blit(dst_bo, dst_offset, dst_pitch, src_bo,
+ src_offset, src_pitch, width * stdu->cpp, height,
+ &diff);
+
+ if (drm_rect_visible(&diff.rect)) {
+ SVGA3dBox *box = &cmd_img->body.box;
+
+ cmd_img->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
+ cmd_img->header.size = sizeof(cmd_img->body);
+ cmd_img->body.image.sid = stdu->display_srf->res.id;
+ cmd_img->body.image.face = 0;
+ cmd_img->body.image.mipmap = 0;
+
+ box->x = diff.rect.x1;
+ box->y = diff.rect.y1;
+ box->z = 0;
+ box->w = drm_rect_width(&diff.rect);
+ box->h = drm_rect_height(&diff.rect);
+ box->d = 1;
+
+ cmd_update = (struct vmw_stdu_update *)&cmd_img[1];
+ vmw_stdu_populate_update(cmd_update, stdu->base.unit,
+ diff.rect.x1, diff.rect.x2,
+ diff.rect.y1, diff.rect.y2);
+
+ return sizeof(*cmd_img) + sizeof(*cmd_update);
+ }
+
+ return 0;
+}
+
+/**
+ * vmw_stdu_plane_update_bo - Update display unit for bo backed fb.
+ * @dev_priv: device private.
+ * @plane: plane state.
+ * @old_state: old plane state.
+ * @vfb: framebuffer which is blitted to display unit.
+ * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj.
+ * The returned fence pointer may be NULL in which case the device
+ * has already synchronized.
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+static int vmw_stdu_plane_update_bo(struct vmw_private *dev_priv,
+ struct drm_plane *plane,
+ struct drm_plane_state *old_state,
+ struct vmw_framebuffer *vfb,
+ struct vmw_fence_obj **out_fence)
+{
+ struct vmw_du_update_plane_buffer bo_update;
+
+ memset(&bo_update, 0, sizeof(struct vmw_du_update_plane_buffer));
+ bo_update.base.plane = plane;
+ bo_update.base.old_state = old_state;
+ bo_update.base.dev_priv = dev_priv;
+ bo_update.base.du = vmw_crtc_to_du(plane->state->crtc);
+ bo_update.base.vfb = vfb;
+ bo_update.base.out_fence = out_fence;
+ bo_update.base.mutex = NULL;
+ bo_update.base.cpu_blit = vmw_stdu_use_cpu_blit(dev_priv);
+ bo_update.base.intr = false;
+
+ /*
+ * VM without 3D support don't have surface DMA command and framebuffer
+ * should be moved out of VRAM.
+ */
+ if (bo_update.base.cpu_blit) {
+ bo_update.base.calc_fifo_size = vmw_stdu_bo_fifo_size_cpu;
+ bo_update.base.pre_clip = vmw_stdu_bo_pre_clip_cpu;
+ bo_update.base.clip = vmw_stdu_bo_clip_cpu;
+ bo_update.base.post_clip = vmw_stdu_bo_populate_update_cpu;
+ } else {
+ bo_update.base.calc_fifo_size = vmw_stdu_bo_fifo_size;
+ bo_update.base.pre_clip = vmw_stdu_bo_populate_dma;
+ bo_update.base.clip = vmw_stdu_bo_populate_clip;
+ bo_update.base.post_clip = vmw_stdu_bo_populate_update;
+ }
+
+ return vmw_du_helper_plane_update(&bo_update.base);
+}
+
+static uint32_t
+vmw_stdu_surface_fifo_size_same_display(struct vmw_du_update_plane *update,
+ uint32_t num_hits)
+{
+ struct vmw_framebuffer_surface *vfbs;
+ uint32_t size = 0;
+
+ vfbs = container_of(update->vfb, typeof(*vfbs), base);
+
+ if (vfbs->is_bo_proxy)
+ size += sizeof(struct vmw_stdu_update_gb_image) * num_hits;
+
+ size += sizeof(struct vmw_stdu_update);
+
+ return size;
+}
+
+static uint32_t vmw_stdu_surface_fifo_size(struct vmw_du_update_plane *update,
+ uint32_t num_hits)
+{
+ struct vmw_framebuffer_surface *vfbs;
+ uint32_t size = 0;
+
+ vfbs = container_of(update->vfb, typeof(*vfbs), base);
+
+ if (vfbs->is_bo_proxy)
+ size += sizeof(struct vmw_stdu_update_gb_image) * num_hits;
+
+ size += sizeof(struct vmw_stdu_surface_copy) + sizeof(SVGA3dCopyBox) *
+ num_hits + sizeof(struct vmw_stdu_update);
+
+ return size;
+}
+
+static uint32_t
+vmw_stdu_surface_update_proxy(struct vmw_du_update_plane *update, void *cmd)
+{
+ struct vmw_framebuffer_surface *vfbs;
+ struct drm_plane_state *state = update->plane->state;
+ struct drm_plane_state *old_state = update->old_state;
+ struct vmw_stdu_update_gb_image *cmd_update = cmd;
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_rect clip;
+ uint32_t copy_size = 0;
+
+ vfbs = container_of(update->vfb, typeof(*vfbs), base);
+
+ /*
+ * proxy surface is special where a buffer object type fb is wrapped
+ * in a surface and need an update gb image command to sync with device.
+ */
+ drm_atomic_helper_damage_iter_init(&iter, old_state, state);
+ drm_atomic_for_each_plane_damage(&iter, &clip) {
+ SVGA3dBox *box = &cmd_update->body.box;
+
+ cmd_update->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
+ cmd_update->header.size = sizeof(cmd_update->body);
+ cmd_update->body.image.sid = vfbs->surface->res.id;
+ cmd_update->body.image.face = 0;
+ cmd_update->body.image.mipmap = 0;
+
+ box->x = clip.x1;
+ box->y = clip.y1;
+ box->z = 0;
+ box->w = drm_rect_width(&clip);
+ box->h = drm_rect_height(&clip);
+ box->d = 1;
+
+ copy_size += sizeof(*cmd_update);
+ cmd_update++;
+ }
+
+ return copy_size;
+}
+
+static uint32_t
+vmw_stdu_surface_populate_copy(struct vmw_du_update_plane *update, void *cmd,
+ uint32_t num_hits)
+{
+ struct vmw_screen_target_display_unit *stdu;
+ struct vmw_framebuffer_surface *vfbs;
+ struct vmw_stdu_surface_copy *cmd_copy = cmd;
+
+ stdu = container_of(update->du, typeof(*stdu), base);
+ vfbs = container_of(update->vfb, typeof(*vfbs), base);
+
+ cmd_copy->header.id = SVGA_3D_CMD_SURFACE_COPY;
+ cmd_copy->header.size = sizeof(cmd_copy->body) + sizeof(SVGA3dCopyBox) *
+ num_hits;
+ cmd_copy->body.src.sid = vfbs->surface->res.id;
+ cmd_copy->body.dest.sid = stdu->display_srf->res.id;
+
+ return sizeof(*cmd_copy);
+}
+
+static uint32_t
+vmw_stdu_surface_populate_clip(struct vmw_du_update_plane *update, void *cmd,
+ struct drm_rect *clip, uint32_t fb_x,
+ uint32_t fb_y)
+{
+ struct SVGA3dCopyBox *box = cmd;
+
+ box->srcx = fb_x;
+ box->srcy = fb_y;
+ box->srcz = 0;
+ box->x = clip->x1;
+ box->y = clip->y1;
+ box->z = 0;
+ box->w = drm_rect_width(clip);
+ box->h = drm_rect_height(clip);
+ box->d = 1;
+
+ return sizeof(*box);
+}
+
+static uint32_t
+vmw_stdu_surface_populate_update(struct vmw_du_update_plane *update, void *cmd,
+ struct drm_rect *bb)
+{
+ vmw_stdu_populate_update(cmd, update->du->unit, bb->x1, bb->x2, bb->y1,
+ bb->y2);
+
+ return sizeof(struct vmw_stdu_update);
+}
+
+/**
+ * vmw_stdu_plane_update_surface - Update display unit for surface backed fb
+ * @dev_priv: Device private
+ * @plane: Plane state
+ * @old_state: Old plane state
+ * @vfb: Framebuffer which is blitted to display unit
+ * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj.
+ * The returned fence pointer may be NULL in which case the device
+ * has already synchronized.
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+static int vmw_stdu_plane_update_surface(struct vmw_private *dev_priv,
+ struct drm_plane *plane,
+ struct drm_plane_state *old_state,
+ struct vmw_framebuffer *vfb,
+ struct vmw_fence_obj **out_fence)
+{
+ struct vmw_du_update_plane srf_update;
+ struct vmw_screen_target_display_unit *stdu;
+ struct vmw_framebuffer_surface *vfbs;
+
+ stdu = vmw_crtc_to_stdu(plane->state->crtc);
+ vfbs = container_of(vfb, typeof(*vfbs), base);
+
+ memset(&srf_update, 0, sizeof(struct vmw_du_update_plane));
+ srf_update.plane = plane;
+ srf_update.old_state = old_state;
+ srf_update.dev_priv = dev_priv;
+ srf_update.du = vmw_crtc_to_du(plane->state->crtc);
+ srf_update.vfb = vfb;
+ srf_update.out_fence = out_fence;
+ srf_update.mutex = &dev_priv->cmdbuf_mutex;
+ srf_update.cpu_blit = false;
+ srf_update.intr = true;
+
+ if (vfbs->is_bo_proxy)
+ srf_update.post_prepare = vmw_stdu_surface_update_proxy;
+
+ if (vfbs->surface->res.id != stdu->display_srf->res.id) {
+ srf_update.calc_fifo_size = vmw_stdu_surface_fifo_size;
+ srf_update.pre_clip = vmw_stdu_surface_populate_copy;
+ srf_update.clip = vmw_stdu_surface_populate_clip;
+ } else {
+ srf_update.calc_fifo_size =
+ vmw_stdu_surface_fifo_size_same_display;
+ }
+
+ srf_update.post_clip = vmw_stdu_surface_populate_update;
+
+ return vmw_du_helper_plane_update(&srf_update);
+}
+
+/**
+ * vmw_stdu_primary_plane_atomic_update - formally switches STDU to new plane
+ * @plane: display plane
+ * @state: Only used to get crtc info
+ *
+ * Formally update stdu->display_srf to the new plane, and bind the new
+ * plane STDU. This function is called during the commit phase when
+ * all the preparation have been done and all the configurations have
+ * been checked.
+ */
+static void
+vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane,
+ struct drm_atomic_state *state)
+{
+ struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane);
+ struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane);
+ struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
+ struct drm_crtc *crtc = new_state->crtc;
+ struct vmw_screen_target_display_unit *stdu;
+ struct vmw_fence_obj *fence = NULL;
+ struct vmw_private *dev_priv;
+ int ret;
+
+ /* If case of device error, maintain consistent atomic state */
+ if (crtc && new_state->fb) {
+ struct vmw_framebuffer *vfb =
+ vmw_framebuffer_to_vfb(new_state->fb);
+ stdu = vmw_crtc_to_stdu(crtc);
+ dev_priv = vmw_priv(crtc->dev);
+
+ stdu->display_srf = vps->surf;
+ stdu->content_fb_type = vps->content_fb_type;
+ stdu->cpp = vps->cpp;
+
+ ret = vmw_stdu_bind_st(dev_priv, stdu, &stdu->display_srf->res);
+ if (ret)
+ DRM_ERROR("Failed to bind surface to STDU.\n");
+
+ if (vfb->bo)
+ ret = vmw_stdu_plane_update_bo(dev_priv, plane,
+ old_state, vfb, &fence);
+ else
+ ret = vmw_stdu_plane_update_surface(dev_priv, plane,
+ old_state, vfb,
+ &fence);
+ if (ret)
+ DRM_ERROR("Failed to update STDU.\n");
+ } else {
+ crtc = old_state->crtc;
+ stdu = vmw_crtc_to_stdu(crtc);
+ dev_priv = vmw_priv(crtc->dev);
+
+ /* Blank STDU when fb and crtc are NULL */
+ if (!stdu->defined)
+ return;
+
+ ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
+ if (ret)
+ DRM_ERROR("Failed to blank STDU\n");
+
+ ret = vmw_stdu_update_st(dev_priv, stdu);
+ if (ret)
+ DRM_ERROR("Failed to update STDU.\n");
+
+ return;
+ }
+
+ if (fence)
+ vmw_fence_obj_unreference(&fence);
+}
+
+
+static const struct drm_plane_funcs vmw_stdu_plane_funcs = {
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
+ .destroy = vmw_du_primary_plane_destroy,
+ .reset = vmw_du_plane_reset,
+ .atomic_duplicate_state = vmw_du_plane_duplicate_state,
+ .atomic_destroy_state = vmw_du_plane_destroy_state,
+};
+
+static const struct drm_plane_funcs vmw_stdu_cursor_funcs = {
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
+ .destroy = vmw_du_cursor_plane_destroy,
+ .reset = vmw_du_plane_reset,
+ .atomic_duplicate_state = vmw_du_plane_duplicate_state,
+ .atomic_destroy_state = vmw_du_plane_destroy_state,
+};
+
+
+/*
+ * Atomic Helpers
+ */
+static const struct
+drm_plane_helper_funcs vmw_stdu_cursor_plane_helper_funcs = {
+ .atomic_check = vmw_du_cursor_plane_atomic_check,
+ .atomic_update = vmw_du_cursor_plane_atomic_update,
+ .prepare_fb = vmw_du_cursor_plane_prepare_fb,
+ .cleanup_fb = vmw_du_cursor_plane_cleanup_fb,
+};
+
+static const struct
+drm_plane_helper_funcs vmw_stdu_primary_plane_helper_funcs = {
+ .atomic_check = vmw_du_primary_plane_atomic_check,
+ .atomic_update = vmw_stdu_primary_plane_atomic_update,
+ .prepare_fb = vmw_stdu_primary_plane_prepare_fb,
+ .cleanup_fb = vmw_stdu_primary_plane_cleanup_fb,
+};
+
+static const struct drm_crtc_helper_funcs vmw_stdu_crtc_helper_funcs = {
+ .prepare = vmw_stdu_crtc_helper_prepare,
+ .mode_set_nofb = vmw_stdu_crtc_mode_set_nofb,
+ .atomic_check = vmw_du_crtc_atomic_check,
+ .atomic_begin = vmw_du_crtc_atomic_begin,
+ .atomic_flush = vmw_du_crtc_atomic_flush,
+ .atomic_enable = vmw_stdu_crtc_atomic_enable,
+ .atomic_disable = vmw_stdu_crtc_atomic_disable,
+};
+
+
+/**
+ * vmw_stdu_init - Sets up a Screen Target Display Unit
+ *
+ * @dev_priv: VMW DRM device
+ * @unit: unit number range from 0 to VMWGFX_NUM_DISPLAY_UNITS
+ *
+ * This function is called once per CRTC, and allocates one Screen Target
+ * display unit to represent that CRTC. Since the SVGA device does not separate
+ * out encoder and connector, they are represented as part of the STDU as well.
+ */
+static int vmw_stdu_init(struct vmw_private *dev_priv, unsigned unit)
+{
+ struct vmw_screen_target_display_unit *stdu;
+ struct drm_device *dev = &dev_priv->drm;
+ struct drm_connector *connector;
+ struct drm_encoder *encoder;
+ struct drm_plane *primary;
+ struct vmw_cursor_plane *cursor;
+ struct drm_crtc *crtc;
+ int ret;
+
+ stdu = kzalloc(sizeof(*stdu), GFP_KERNEL);
+ if (!stdu)
+ return -ENOMEM;
+
+ stdu->base.unit = unit;
+ crtc = &stdu->base.crtc;
+ encoder = &stdu->base.encoder;
+ connector = &stdu->base.connector;
+ primary = &stdu->base.primary;
+ cursor = &stdu->base.cursor;
+
+ stdu->base.pref_active = (unit == 0);
+ stdu->base.pref_width = dev_priv->initial_width;
+ stdu->base.pref_height = dev_priv->initial_height;
+ stdu->base.is_implicit = false;
+
+ /* Initialize primary plane */
+ ret = drm_universal_plane_init(dev, primary,
+ 0, &vmw_stdu_plane_funcs,
+ vmw_primary_plane_formats,
+ ARRAY_SIZE(vmw_primary_plane_formats),
+ NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
+ if (ret) {
+ DRM_ERROR("Failed to initialize primary plane");
+ goto err_free;
+ }
+
+ drm_plane_helper_add(primary, &vmw_stdu_primary_plane_helper_funcs);
+ drm_plane_enable_fb_damage_clips(primary);
+
+ /* Initialize cursor plane */
+ ret = drm_universal_plane_init(dev, &cursor->base,
+ 0, &vmw_stdu_cursor_funcs,
+ vmw_cursor_plane_formats,
+ ARRAY_SIZE(vmw_cursor_plane_formats),
+ NULL, DRM_PLANE_TYPE_CURSOR, NULL);
+ if (ret) {
+ DRM_ERROR("Failed to initialize cursor plane");
+ drm_plane_cleanup(&stdu->base.primary);
+ goto err_free;
+ }
+
+ drm_plane_helper_add(&cursor->base, &vmw_stdu_cursor_plane_helper_funcs);
+
+ ret = drm_connector_init(dev, connector, &vmw_stdu_connector_funcs,
+ DRM_MODE_CONNECTOR_VIRTUAL);
+ if (ret) {
+ DRM_ERROR("Failed to initialize connector\n");
+ goto err_free;
+ }
+
+ drm_connector_helper_add(connector, &vmw_stdu_connector_helper_funcs);
+ connector->status = vmw_du_connector_detect(connector, false);
+
+ ret = drm_encoder_init(dev, encoder, &vmw_stdu_encoder_funcs,
+ DRM_MODE_ENCODER_VIRTUAL, NULL);
+ if (ret) {
+ DRM_ERROR("Failed to initialize encoder\n");
+ goto err_free_connector;
+ }
+
+ (void) drm_connector_attach_encoder(connector, encoder);
+ encoder->possible_crtcs = (1 << unit);
+ encoder->possible_clones = 0;
+
+ ret = drm_connector_register(connector);
+ if (ret) {
+ DRM_ERROR("Failed to register connector\n");
+ goto err_free_encoder;
+ }
+
+ ret = drm_crtc_init_with_planes(dev, crtc, primary,
+ &cursor->base,
+ &vmw_stdu_crtc_funcs, NULL);
+ if (ret) {
+ DRM_ERROR("Failed to initialize CRTC\n");
+ goto err_free_unregister;
+ }
+
+ drm_crtc_helper_add(crtc, &vmw_stdu_crtc_helper_funcs);
+
+ drm_mode_crtc_set_gamma_size(crtc, 256);
+
+ drm_object_attach_property(&connector->base,
+ dev_priv->hotplug_mode_update_property, 1);
+ 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);
+ return 0;
+
+err_free_unregister:
+ drm_connector_unregister(connector);
+err_free_encoder:
+ drm_encoder_cleanup(encoder);
+err_free_connector:
+ drm_connector_cleanup(connector);
+err_free:
+ kfree(stdu);
+ return ret;
+}
+
+
+
+/**
+ * vmw_stdu_destroy - Cleans up a vmw_screen_target_display_unit
+ *
+ * @stdu: Screen Target Display Unit to be destroyed
+ *
+ * Clean up after vmw_stdu_init
+ */
+static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu)
+{
+ vmw_du_cleanup(&stdu->base);
+ kfree(stdu);
+}
+
+
+
+/******************************************************************************
+ * Screen Target Display KMS Functions
+ *
+ * These functions are called by the common KMS code in vmwgfx_kms.c
+ *****************************************************************************/
+
+/**
+ * vmw_kms_stdu_init_display - Initializes a Screen Target based display
+ *
+ * @dev_priv: VMW DRM device
+ *
+ * This function initialize a Screen Target based display device. It checks
+ * the capability bits to make sure the underlying hardware can support
+ * screen targets, and then creates the maximum number of CRTCs, a.k.a Display
+ * Units, as supported by the display hardware.
+ *
+ * RETURNS:
+ * 0 on success, error code otherwise
+ */
+int vmw_kms_stdu_init_display(struct vmw_private *dev_priv)
+{
+ struct drm_device *dev = &dev_priv->drm;
+ int i, ret;
+
+
+ /* Do nothing if there's no support for MOBs */
+ if (!dev_priv->has_mob)
+ return -ENOSYS;
+
+ if (!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS))
+ return -ENOSYS;
+
+ dev_priv->active_display_unit = vmw_du_screen_target;
+
+ for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) {
+ ret = vmw_stdu_init(dev_priv, i);
+
+ if (unlikely(ret != 0)) {
+ drm_err(&dev_priv->drm,
+ "Failed to initialize STDU %d", i);
+ return ret;
+ }
+ }
+
+ drm_mode_config_reset(dev);
+
+ return 0;
+}