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path: root/drivers/gpu/drm/vmwgfx/device_include/svga_reg.h
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Diffstat (limited to 'drivers/gpu/drm/vmwgfx/device_include/svga_reg.h')
-rw-r--r--drivers/gpu/drm/vmwgfx/device_include/svga_reg.h31
1 files changed, 29 insertions, 2 deletions
diff --git a/drivers/gpu/drm/vmwgfx/device_include/svga_reg.h b/drivers/gpu/drm/vmwgfx/device_include/svga_reg.h
index 847e3301c478..b30c006bd80a 100644
--- a/drivers/gpu/drm/vmwgfx/device_include/svga_reg.h
+++ b/drivers/gpu/drm/vmwgfx/device_include/svga_reg.h
@@ -673,8 +673,34 @@ SVGASignedPoint;
* SVGA_CAP_GBOBJECTS --
* Enable guest-backed objects and surfaces.
*
- * SVGA_CAP_CMD_BUFFERS_3 --
- * Enable support for command buffers in a mob.
+ * SVGA_CAP_DX --
+ * Enable support for DX commands, and command buffers in a mob.
+ *
+ * SVGA_CAP_HP_CMD_QUEUE --
+ * Enable support for the high priority command queue, and the
+ * ScreenCopy command.
+ *
+ * SVGA_CAP_NO_BB_RESTRICTION --
+ * Allow ScreenTargets to be defined without regard to the 32-bpp
+ * bounding-box memory restrictions. ie:
+ *
+ * The summed memory usage of all screens (assuming they were defined as
+ * 32-bpp) must always be less than the value of the
+ * SVGA_REG_MAX_PRIMARY_MEM register.
+ *
+ * If this cap is not present, the 32-bpp bounding box around all screens
+ * must additionally be under the value of the SVGA_REG_MAX_PRIMARY_MEM
+ * register.
+ *
+ * If the cap is present, the bounding box restriction is lifted (and only
+ * the screen-sum limit applies).
+ *
+ * (Note that this is a slight lie... there is still a sanity limit on any
+ * dimension of the topology to be less than SVGA_SCREEN_ROOT_LIMIT, even
+ * when SVGA_CAP_NO_BB_RESTRICTION is present, but that should be
+ * large enough to express any possible topology without holes between
+ * monitors.)
+ *
*/
#define SVGA_CAP_NONE 0x00000000
@@ -700,6 +726,7 @@ SVGASignedPoint;
#define SVGA_CAP_GBOBJECTS 0x08000000
#define SVGA_CAP_DX 0x10000000
#define SVGA_CAP_HP_CMD_QUEUE 0x20000000
+#define SVGA_CAP_NO_BB_RESTRICTION 0x40000000
#define SVGA_CAP_CMD_RESERVED 0x80000000