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linux-zen-server/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c

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Initial commit
2023-08-30 17:53:23 +02:00
// 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;
}