Merge branch 'vmwgfx_branch'

1 files changed, 455 insertions, 0 deletions

diff --git a/vmwgfx/vmwgfx_crtc.c b/vmwgfx/vmwgfx_crtc.c
new file mode 100644
index 0000000..eaf87b2
--- /dev/null
+++ b/vmwgfx/vmwgfx_crtc.c
@@ -0,0 +1,455 @@
+/*
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2011 VMWare, Inc.
+ * All Rights Reserved.
+ *
+ * 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 TUNGSTEN GRAPHICS 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.
+ *
+ *
+ * Author: Alan Hourihane <alanh@tungstengraphics.com>
+ * Author: Jakob Bornecrantz <wallbraker@gmail.com>
+ * Author: Thomas Hellstrom <thellstrom@vmware.com>
+ */
+
+#include <unistd.h>
+#include <string.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <math.h>
+#include <stdint.h>
+
+#include "xorg-server.h"
+#include <xf86.h>
+#include <xf86i2c.h>
+#include <xf86Crtc.h>
+#include <cursorstr.h>
+#include "vmwgfx_driver.h"
+#include "xf86Modes.h"
+#include "vmwgfx_saa.h"
+
+#ifdef HAVE_XEXTPROTO_71
+#include <X11/extensions/dpmsconst.h>
+#else
+#define DPMS_SERVER
+#include <X11/extensions/dpms.h>
+#endif
+
+struct crtc_private
+{
+    drmModeCrtcPtr drm_crtc;
+
+    /* hwcursor */
+    struct vmwgfx_dmabuf *cursor_bo;
+    uint32_t scanout_id;
+    unsigned cursor_handle;
+
+    /* Scanout info for pixmaps */
+    struct vmwgfx_screen_entry entry;
+};
+
+static void
+crtc_dpms(xf86CrtcPtr crtc, int mode)
+{
+    struct crtc_private *crtcp = crtc->driver_private;
+    /* ScrnInfoPtr pScrn = crtc->scrn; */
+
+    switch (mode) {
+    case DPMSModeOn:
+    case DPMSModeStandby:
+    case DPMSModeSuspend:
+	break;
+    case DPMSModeOff:
+
+      /*
+       * The xf86 modesetting code uses DPMS off to turn off
+       * crtcs that are not enabled. However, the DPMS code does the same.
+       * We assume, that if we get this call with the crtc not enabled,
+       * it's a permanent switch off which will only be reversed by a
+       * major modeset.
+       *
+       * If it's a DPMS switch off, (crtc->enabled == TRUE),
+       * the crtc may be turned on again by
+       * another dpms call, so don't release the scanout pixmap ref.
+       */
+	if (!crtc->enabled && crtcp->entry.pixmap) {
+	    vmwgfx_scanout_unref(&crtcp->entry);
+	}
+	break;
+    }
+}
+
+/*
+ * Disable outputs and crtcs and drop the scanout reference from
+ * scanout pixmaps. This will essentialy free all kms fb allocations.
+ */
+
+void
+vmwgfx_disable_scanout(ScrnInfoPtr pScrn)
+{
+    int i;
+    Bool save_enabled;
+    xf86CrtcPtr crtc;
+    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
+
+    xf86DPMSSet(pScrn, DPMSModeOff, 0);
+    for (i=0; i < config->num_crtc; ++i) {
+	crtc = config->crtc[i];
+	save_enabled = crtc->enabled;
+	crtc->enabled = FALSE;
+	crtc_dpms(crtc, DPMSModeOff);
+	crtc->enabled = save_enabled;
+    }
+    xf86RotateFreeShadow(pScrn);
+}
+
+static Bool
+crtc_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
+		    Rotation rotation, int x, int y)
+{
+    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
+    modesettingPtr ms = modesettingPTR(crtc->scrn);
+    ScreenPtr pScreen = crtc->scrn->pScreen;
+    xf86OutputPtr output = NULL;
+    struct crtc_private *crtcp = crtc->driver_private;
+    drmModeCrtcPtr drm_crtc = crtcp->drm_crtc;
+    drmModeModeInfo drm_mode;
+    int i, ret;
+    unsigned int connector_id;
+    PixmapPtr pixmap;
+
+    for (i = 0; i < config->num_output; output = NULL, i++) {
+	output = config->output[i];
+
+	if (output->crtc == crtc)
+	    break;
+    }
+
+    if (!output) {
+	LogMessage(X_ERROR, "No output for this crtc.\n");
+	return FALSE;
+    }
+
+    connector_id = xorg_output_get_id(output);
+
+    drm_mode.clock = mode->Clock;
+    drm_mode.hdisplay = mode->HDisplay;
+    drm_mode.hsync_start = mode->HSyncStart;
+    drm_mode.hsync_end = mode->HSyncEnd;
+    drm_mode.htotal = mode->HTotal;
+    drm_mode.vdisplay = mode->VDisplay;
+    drm_mode.vsync_start = mode->VSyncStart;
+    drm_mode.vsync_end = mode->VSyncEnd;
+    drm_mode.vtotal = mode->VTotal;
+    drm_mode.flags = mode->Flags;
+    drm_mode.hskew = mode->HSkew;
+    drm_mode.vscan = mode->VScan;
+    drm_mode.vrefresh = mode->VRefresh;
+    if (!mode->name)
+	xf86SetModeDefaultName(mode);
+    strncpy(drm_mode.name, mode->name, DRM_DISPLAY_MODE_LEN - 1);
+    drm_mode.name[DRM_DISPLAY_MODE_LEN - 1] = '\0';
+
+    /*
+     * Check if we need to scanout from something else than the root
+     * pixmap. In that case, xf86CrtcRotate will take care of allocating
+     * new opaque scanout buffer data "crtc->rotatedData".
+     * However, it will not wrap
+     * that data into pixmaps until the first rotated damage composite.
+     * In out case, the buffer data is actually already a pixmap.
+     */
+
+    if (!xf86CrtcRotate(crtc))
+	return FALSE;
+
+    if (crtc->transform_in_use && crtc->rotatedData) {
+	x = 0;
+	y = 0;
+	pixmap = (PixmapPtr) crtc->rotatedData;
+    } else
+	pixmap = pScreen->GetScreenPixmap(pScreen);
+
+    if (crtcp->entry.pixmap != pixmap) {
+	if (crtcp->entry.pixmap)
+	    vmwgfx_scanout_unref(&crtcp->entry);
+
+	crtcp->entry.pixmap = pixmap;
+	crtcp->scanout_id = vmwgfx_scanout_ref(&crtcp->entry);
+	if (crtcp->scanout_id == -1) {
+	    LogMessage(X_ERROR, "Failed to convert pixmap to scanout.\n");
+	    return FALSE;
+	}
+    }
+    ret = drmModeSetCrtc(ms->fd, drm_crtc->crtc_id, crtcp->scanout_id, x, y,
+			 &connector_id, 1, &drm_mode);
+    if (ret)
+	return FALSE;
+
+    vmwgfx_scanout_refresh(pixmap);
+
+    /* Only set gamma when needed, to avoid unneeded delays. */
+#if defined(XF86_CRTC_VERSION) && XF86_CRTC_VERSION >= 3
+    if (!crtc->active && crtc->version >= 3)
+	crtc->funcs->gamma_set(crtc, crtc->gamma_red, crtc->gamma_green,
+			       crtc->gamma_blue, crtc->gamma_size);
+    crtc->active = TRUE;
+#endif
+
+    return TRUE;
+}
+
+static void
+crtc_gamma_set(xf86CrtcPtr crtc, CARD16 * red, CARD16 * green, CARD16 * blue,
+	       int size)
+{
+    modesettingPtr ms = modesettingPTR(crtc->scrn);
+    struct crtc_private *crtcp = crtc->driver_private;
+
+    drmModeCrtcSetGamma(ms->fd, crtcp->drm_crtc->crtc_id, size, red, green, blue);
+}
+
+static void *
+crtc_shadow_allocate(xf86CrtcPtr crtc, int width, int height)
+{
+    ScreenPtr pScreen = crtc->scrn->pScreen;
+    PixmapPtr rootpix = pScreen->GetScreenPixmap(pScreen);
+
+    /*
+     * Use the same depth as for the root pixmap.
+     * The associated kms fb will be created on demand once this pixmap
+     * is used as scanout by a crtc.
+     */
+
+    return pScreen->CreatePixmap(pScreen, width, height,
+				 rootpix->drawable.depth, 0);
+}
+
+static PixmapPtr
+crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
+{
+    return (PixmapPtr) data;
+}
+
+static void
+crtc_shadow_destroy(xf86CrtcPtr crtc, PixmapPtr rotate_pixmap, void *data)
+{
+    ScreenPtr pScreen = rotate_pixmap->drawable.pScreen;
+
+    pScreen->DestroyPixmap(rotate_pixmap);
+}
+
+
+/*
+ * Cursor functions
+ */
+
+static void
+crtc_set_cursor_colors(xf86CrtcPtr crtc, int bg, int fg)
+{
+    /* XXX: See if this one is needed, as we only support ARGB cursors */
+}
+
+static void
+crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y)
+{
+    modesettingPtr ms = modesettingPTR(crtc->scrn);
+    struct crtc_private *crtcp = crtc->driver_private;
+
+    drmModeMoveCursor(ms->fd, crtcp->drm_crtc->crtc_id, x, y);
+}
+
+static void
+crtc_load_cursor_argb_kms(xf86CrtcPtr crtc, CARD32 * image)
+{
+    modesettingPtr ms = modesettingPTR(crtc->scrn);
+    struct crtc_private *crtcp = crtc->driver_private;
+    unsigned char *ptr;
+    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
+    CursorPtr c = config->cursor;
+
+    if (vmwgfx_cursor_bypass(ms->fd, c->bits->xhot, c->bits->yhot) != 0) {
+	xf86DrvMsg(crtc->scrn->scrnIndex, X_ERROR,
+		   "Failed to set VMWare cursor bypass.\n");
+    }
+
+    if (!crtcp->cursor_bo) {
+	size_t size = 64*64*4;
+        crtcp->cursor_bo = vmwgfx_dmabuf_alloc(ms->fd, size);
+	if (!crtcp->cursor_bo)
+	    return;
+	crtcp->cursor_handle = crtcp->cursor_bo->handle;
+    }
+
+    ptr = vmwgfx_dmabuf_map(crtcp->cursor_bo);
+    if (ptr) {
+	memcpy(ptr, image, 64*64*4);
+	vmwgfx_dmabuf_unmap(crtcp->cursor_bo);
+    }
+
+    if (crtc->cursor_shown)
+	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
+			 crtcp->cursor_handle, 64, 64);
+
+    return;
+}
+
+static void
+crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
+{
+    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
+    modesettingPtr ms = modesettingPTR(crtc->scrn);
+
+    /* Older X servers have cursor reference counting bugs leading to use of
+     * freed memory and consequently random crashes. Should be fixed as of
+     * xserver 1.8, but this workaround shouldn't hurt anyway.
+     */
+    if (config->cursor)
+       config->cursor->refcnt++;
+
+    if (ms->cursor)
+       FreeCursor(ms->cursor, None);
+
+    ms->cursor = config->cursor;
+    crtc_load_cursor_argb_kms(crtc, image);
+}
+
+static void
+crtc_show_cursor(xf86CrtcPtr crtc)
+{
+    modesettingPtr ms = modesettingPTR(crtc->scrn);
+    struct crtc_private *crtcp = crtc->driver_private;
+
+    if (crtcp->cursor_bo)
+	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
+			 crtcp->cursor_handle, 64, 64);
+}
+
+static void
+crtc_hide_cursor(xf86CrtcPtr crtc)
+{
+    modesettingPtr ms = modesettingPTR(crtc->scrn);
+    struct crtc_private *crtcp = crtc->driver_private;
+
+    drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
+}
+
+/**
+ * Called at vt leave
+ */
+void
+xorg_crtc_cursor_destroy(xf86CrtcPtr crtc)
+{
+    struct crtc_private *crtcp = crtc->driver_private;
+
+    if (crtcp->cursor_bo) {
+	vmwgfx_dmabuf_destroy(crtcp->cursor_bo);
+	crtcp->cursor_bo = NULL;
+    }
+}
+
+/*
+ * Misc functions
+ */
+
+static void
+crtc_destroy(xf86CrtcPtr crtc)
+{
+    struct crtc_private *crtcp = crtc->driver_private;
+
+    if (!WSBMLISTEMPTY(&crtcp->entry.scanout_head))
+	vmwgfx_scanout_unref(&crtcp->entry);
+
+    xorg_crtc_cursor_destroy(crtc);
+
+    drmModeFreeCrtc(crtcp->drm_crtc);
+
+    free(crtcp);
+    crtc->driver_private = NULL;
+}
+
+static const xf86CrtcFuncsRec crtc_funcs = {
+    .dpms = crtc_dpms,
+    .set_mode_major = crtc_set_mode_major,
+
+    .set_cursor_colors = crtc_set_cursor_colors,
+    .set_cursor_position = crtc_set_cursor_position,
+    .show_cursor = crtc_show_cursor,
+    .hide_cursor = crtc_hide_cursor,
+    .load_cursor_argb = crtc_load_cursor_argb,
+
+    .shadow_create = crtc_shadow_create,
+    .shadow_allocate = crtc_shadow_allocate,
+    .shadow_destroy = crtc_shadow_destroy,
+
+    .gamma_set = crtc_gamma_set,
+    .destroy = crtc_destroy,
+};
+
+void
+xorg_crtc_init(ScrnInfoPtr pScrn)
+{
+    modesettingPtr ms = modesettingPTR(pScrn);
+    xf86CrtcPtr crtc;
+    drmModeResPtr res;
+    drmModeCrtcPtr drm_crtc = NULL;
+    struct crtc_private *crtcp;
+    int c;
+
+    res = drmModeGetResources(ms->fd);
+    if (res == 0) {
+	ErrorF("Failed drmModeGetResources %d\n", errno);
+	return;
+    }
+
+    for (c = 0; c < res->count_crtcs; c++) {
+	drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);
+
+	if (!drm_crtc)
+	    continue;
+
+	crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
+	if (crtc == NULL)
+	    goto out;
+
+	crtcp = calloc(1, sizeof(struct crtc_private));
+	if (!crtcp) {
+	    xf86CrtcDestroy(crtc);
+	    goto out;
+	}
+
+	crtcp->drm_crtc = drm_crtc;
+	crtcp->entry.pixmap = NULL;
+	WSBMINITLISTHEAD(&crtcp->entry.scanout_head);
+
+	crtc->driver_private = crtcp;
+    }
+
+  out:
+    drmModeFreeResources(res);
+}
+
+PixmapPtr
+crtc_get_scanout(xf86CrtcPtr crtc)
+{
+    struct crtc_private *crtcp = crtc->driver_private;
+    return crtcp->entry.pixmap;
+}
+
+/* vim: set sw=4 ts=8 sts=4: */