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linux/drivers/gpu/drm/vmwgfx/device_include/svga_reg.h

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/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/**********************************************************
* Copyright 1998-2015 VMware, Inc.
*
* 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, sublicense, 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 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
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* 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.
*
**********************************************************/
/*
* svga_reg.h --
*
* Virtual hardware definitions for the VMware SVGA II device.
*/
#ifndef _SVGA_REG_H_
#define _SVGA_REG_H_
#include <linux/pci_ids.h>
#define INCLUDE_ALLOW_MODULE
#define INCLUDE_ALLOW_USERLEVEL
#define INCLUDE_ALLOW_VMCORE
#include "includeCheck.h"
#include "svga_types.h"
/*
* SVGA_REG_ENABLE bit definitions.
*/
typedef enum {
SVGA_REG_ENABLE_DISABLE = 0,
SVGA_REG_ENABLE_ENABLE = (1 << 0),
SVGA_REG_ENABLE_HIDE = (1 << 1),
} SvgaRegEnable;
typedef uint32 SVGAMobId;
/*
* Arbitrary and meaningless limits. Please ignore these when writing
* new drivers.
*/
#define SVGA_MAX_WIDTH 2560
#define SVGA_MAX_HEIGHT 1600
#define SVGA_MAX_BITS_PER_PIXEL 32
#define SVGA_MAX_DEPTH 24
#define SVGA_MAX_DISPLAYS 10
#define SVGA_MAX_SCREEN_SIZE 8192
#define SVGA_SCREEN_ROOT_LIMIT (SVGA_MAX_SCREEN_SIZE * SVGA_MAX_DISPLAYS)
/*
* Legal values for the SVGA_REG_CURSOR_ON register in old-fashioned
* cursor bypass mode.
*/
#define SVGA_CURSOR_ON_HIDE 0x0
#define SVGA_CURSOR_ON_SHOW 0x1
/*
* Remove the cursor from the framebuffer
* because we need to see what's under it
*/
#define SVGA_CURSOR_ON_REMOVE_FROM_FB 0x2
/* Put the cursor back in the framebuffer so the user can see it */
#define SVGA_CURSOR_ON_RESTORE_TO_FB 0x3
/*
* The maximum framebuffer size that can traced for guests unless the
* SVGA_CAP_GBOBJECTS is set in SVGA_REG_CAPABILITIES. In that case
* the full framebuffer can be traced independent of this limit.
*/
#define SVGA_FB_MAX_TRACEABLE_SIZE 0x1000000
#define SVGA_MAX_PSEUDOCOLOR_DEPTH 8
#define SVGA_MAX_PSEUDOCOLORS (1 << SVGA_MAX_PSEUDOCOLOR_DEPTH)
#define SVGA_NUM_PALETTE_REGS (3 * SVGA_MAX_PSEUDOCOLORS)
#define SVGA_MAGIC 0x900000UL
#define SVGA_MAKE_ID(ver) (SVGA_MAGIC << 8 | (ver))
/* Version 2 let the address of the frame buffer be unsigned on Win32 */
#define SVGA_VERSION_2 2
#define SVGA_ID_2 SVGA_MAKE_ID(SVGA_VERSION_2)
/* Version 1 has new registers starting with SVGA_REG_CAPABILITIES so
PALETTE_BASE has moved */
#define SVGA_VERSION_1 1
#define SVGA_ID_1 SVGA_MAKE_ID(SVGA_VERSION_1)
/* Version 0 is the initial version */
#define SVGA_VERSION_0 0
#define SVGA_ID_0 SVGA_MAKE_ID(SVGA_VERSION_0)
/*
* "Invalid" value for all SVGA IDs.
* (Version ID, screen object ID, surface ID...)
*/
#define SVGA_ID_INVALID 0xFFFFFFFF
/* Port offsets, relative to BAR0 */
#define SVGA_INDEX_PORT 0x0
#define SVGA_VALUE_PORT 0x1
#define SVGA_BIOS_PORT 0x2
#define SVGA_IRQSTATUS_PORT 0x8
/*
* Interrupt source flags for IRQSTATUS_PORT and IRQMASK.
*
* Interrupts are only supported when the
* SVGA_CAP_IRQMASK capability is present.
*/
#define SVGA_IRQFLAG_ANY_FENCE 0x1 /* Any fence was passed */
#define SVGA_IRQFLAG_FIFO_PROGRESS 0x2 /* Made forward progress in the FIFO */
#define SVGA_IRQFLAG_FENCE_GOAL 0x4 /* SVGA_FIFO_FENCE_GOAL reached */
#define SVGA_IRQFLAG_COMMAND_BUFFER 0x8 /* Command buffer completed */
#define SVGA_IRQFLAG_ERROR 0x10 /* Error while processing commands */
/*
* The byte-size is the size of the actual cursor data,
* possibly after expanding it to the current bit depth.
*
* 40K is sufficient memory for two 32-bit planes for a 64 x 64 cursor.
*
* The dimension limit is a bound on the maximum width or height.
*/
#define SVGA_MAX_CURSOR_CMD_BYTES (40 * 1024)
#define SVGA_MAX_CURSOR_CMD_DIMENSION 1024
/*
* Registers
*/
enum {
SVGA_REG_ID = 0,
SVGA_REG_ENABLE = 1,
SVGA_REG_WIDTH = 2,
SVGA_REG_HEIGHT = 3,
SVGA_REG_MAX_WIDTH = 4,
SVGA_REG_MAX_HEIGHT = 5,
SVGA_REG_DEPTH = 6,
SVGA_REG_BITS_PER_PIXEL = 7, /* Current bpp in the guest */
SVGA_REG_PSEUDOCOLOR = 8,
SVGA_REG_RED_MASK = 9,
SVGA_REG_GREEN_MASK = 10,
SVGA_REG_BLUE_MASK = 11,
SVGA_REG_BYTES_PER_LINE = 12,
SVGA_REG_FB_START = 13, /* (Deprecated) */
SVGA_REG_FB_OFFSET = 14,
SVGA_REG_VRAM_SIZE = 15,
SVGA_REG_FB_SIZE = 16,
/* ID 0 implementation only had the above registers, then the palette */
SVGA_REG_ID_0_TOP = 17,
SVGA_REG_CAPABILITIES = 17,
SVGA_REG_MEM_START = 18, /* (Deprecated) */
SVGA_REG_MEM_SIZE = 19,
SVGA_REG_CONFIG_DONE = 20, /* Set when memory area configured */
SVGA_REG_SYNC = 21, /* See "FIFO Synchronization Registers" */
SVGA_REG_BUSY = 22, /* See "FIFO Synchronization Registers" */
SVGA_REG_GUEST_ID = 23, /* (Deprecated) */
SVGA_REG_DEAD = 24, /* Drivers should never write this. */
SVGA_REG_CURSOR_X = 25, /* (Deprecated) */
SVGA_REG_CURSOR_Y = 26, /* (Deprecated) */
SVGA_REG_CURSOR_ON = 27, /* (Deprecated) */
SVGA_REG_HOST_BITS_PER_PIXEL = 28, /* (Deprecated) */
SVGA_REG_SCRATCH_SIZE = 29, /* Number of scratch registers */
SVGA_REG_MEM_REGS = 30, /* Number of FIFO registers */
SVGA_REG_NUM_DISPLAYS = 31, /* (Deprecated) */
SVGA_REG_PITCHLOCK = 32, /* Fixed pitch for all modes */
SVGA_REG_IRQMASK = 33, /* Interrupt mask */
/* Legacy multi-monitor support */
SVGA_REG_NUM_GUEST_DISPLAYS = 34,/* Number of guest displays in X/Y direction */
SVGA_REG_DISPLAY_ID = 35, /* Display ID for the following display attributes */
SVGA_REG_DISPLAY_IS_PRIMARY = 36,/* Whether this is a primary display */
SVGA_REG_DISPLAY_POSITION_X = 37,/* The display position x */
SVGA_REG_DISPLAY_POSITION_Y = 38,/* The display position y */
SVGA_REG_DISPLAY_WIDTH = 39, /* The display's width */
SVGA_REG_DISPLAY_HEIGHT = 40, /* The display's height */
/* See "Guest memory regions" below. */
SVGA_REG_GMR_ID = 41,
SVGA_REG_GMR_DESCRIPTOR = 42,
SVGA_REG_GMR_MAX_IDS = 43,
SVGA_REG_GMR_MAX_DESCRIPTOR_LENGTH = 44,
SVGA_REG_TRACES = 45, /* Enable trace-based updates even when FIFO is on */
SVGA_REG_GMRS_MAX_PAGES = 46, /* Maximum number of 4KB pages for all GMRs */
SVGA_REG_MEMORY_SIZE = 47, /* Total dedicated device memory excluding FIFO */
SVGA_REG_COMMAND_LOW = 48, /* Lower 32 bits and submits commands */
SVGA_REG_COMMAND_HIGH = 49, /* Upper 32 bits of command buffer PA */
/*
* Max primary memory.
* See SVGA_CAP_NO_BB_RESTRICTION.
*/
SVGA_REG_MAX_PRIMARY_MEM = 50,
SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM = 50,
/*
* Legacy version of SVGA_REG_GBOBJECT_MEM_SIZE_KB for drivers that
* don't know how to convert to a 64-bit byte value without overflowing.
* (See SVGA_REG_GBOBJECT_MEM_SIZE_KB).
*/
SVGA_REG_SUGGESTED_GBOBJECT_MEM_SIZE_KB = 51,
SVGA_REG_DEV_CAP = 52, /* Write dev cap index, read value */
SVGA_REG_CMD_PREPEND_LOW = 53,
SVGA_REG_CMD_PREPEND_HIGH = 54,
SVGA_REG_SCREENTARGET_MAX_WIDTH = 55,
SVGA_REG_SCREENTARGET_MAX_HEIGHT = 56,
SVGA_REG_MOB_MAX_SIZE = 57,
SVGA_REG_BLANK_SCREEN_TARGETS = 58,
SVGA_REG_CAP2 = 59,
SVGA_REG_DEVEL_CAP = 60,
/*
* Allow the guest to hint to the device which driver is running.
*
* This should not generally change device behavior, but might be
* convenient to work-around specific bugs in guest drivers.
*
* Drivers should first write their id value into SVGA_REG_GUEST_DRIVER_ID,
* and then fill out all of the version registers that they have defined.
*
* After the driver has written all of the registers, they should
* then write the value SVGA_REG_GUEST_DRIVER_ID_SUBMIT to the
* SVGA_REG_GUEST_DRIVER_ID register, to signal that they have finished.
*
* The SVGA_REG_GUEST_DRIVER_ID values are defined below by the
* SVGARegGuestDriverId enum.
*
* The SVGA_REG_GUEST_DRIVER_VERSION fields are driver-specific,
* but ideally should encode a monotonically increasing number that allows
* the device to perform inequality checks against ranges of driver versions.
*/
SVGA_REG_GUEST_DRIVER_ID = 61,
SVGA_REG_GUEST_DRIVER_VERSION1 = 62,
SVGA_REG_GUEST_DRIVER_VERSION2 = 63,
SVGA_REG_GUEST_DRIVER_VERSION3 = 64,
SVGA_REG_CURSOR_MOBID = 65,
SVGA_REG_CURSOR_MAX_BYTE_SIZE = 66,
SVGA_REG_CURSOR_MAX_DIMENSION = 67,
SVGA_REG_FIFO_CAPS = 68,
SVGA_REG_FENCE = 69,
SVGA_REG_RESERVED1 = 70,
SVGA_REG_RESERVED2 = 71,
SVGA_REG_RESERVED3 = 72,
SVGA_REG_RESERVED4 = 73,
SVGA_REG_RESERVED5 = 74,
SVGA_REG_SCREENDMA = 75,
/*
* The maximum amount of guest-backed objects that the device can have
* resident at a time. Guest-drivers should keep their working set size
* below this limit for best performance.
*
* Note that this value is in kilobytes, and not bytes, because the actual
* number of bytes might be larger than can fit in a 32-bit register.
*
* PLEASE USE A 64-BIT VALUE WHEN CONVERTING THIS INTO BYTES.
* (See SVGA_REG_SUGGESTED_GBOBJECT_MEM_SIZE_KB).
*/
SVGA_REG_GBOBJECT_MEM_SIZE_KB = 76,
SVGA_REG_TOP = 77, /* Must be 1 more than the last register */
SVGA_PALETTE_BASE = 1024, /* Base of SVGA color map */
/* Next 768 (== 256*3) registers exist for colormap */
SVGA_SCRATCH_BASE = SVGA_PALETTE_BASE + SVGA_NUM_PALETTE_REGS
/* Base of scratch registers */
/* Next reg[SVGA_REG_SCRATCH_SIZE] registers exist for scratch usage:
First 4 are reserved for VESA BIOS Extension; any remaining are for
the use of the current SVGA driver. */
};
/*
* Values for SVGA_REG_GUEST_DRIVER_ID.
*/
typedef enum SVGARegGuestDriverId {
SVGA_REG_GUEST_DRIVER_ID_UNKNOWN = 0,
SVGA_REG_GUEST_DRIVER_ID_WDDM = 1,
SVGA_REG_GUEST_DRIVER_ID_LINUX = 2,
SVGA_REG_GUEST_DRIVER_ID_MAX,
SVGA_REG_GUEST_DRIVER_ID_SUBMIT = MAX_UINT32,
} SVGARegGuestDriverId;
/*
* Guest memory regions (GMRs):
*
* This is a new memory mapping feature available in SVGA devices
* which have the SVGA_CAP_GMR bit set. Previously, there were two
* fixed memory regions available with which to share data between the
* device and the driver: the FIFO ('MEM') and the framebuffer. GMRs
* are our name for an extensible way of providing arbitrary DMA
* buffers for use between the driver and the SVGA device. They are a
* new alternative to framebuffer memory, usable for both 2D and 3D
* graphics operations.
*
* Since GMR mapping must be done synchronously with guest CPU
* execution, we use a new pair of SVGA registers:
*
* SVGA_REG_GMR_ID --
*
* Read/write.
* This register holds the 32-bit ID (a small positive integer)
* of a GMR to create, delete, or redefine. Writing this register
* has no side-effects.
*
* SVGA_REG_GMR_DESCRIPTOR --
*
* Write-only.
* Writing this register will create, delete, or redefine the GMR
* specified by the above ID register. If this register is zero,
* the GMR is deleted. Any pointers into this GMR (including those
* currently being processed by FIFO commands) will be
* synchronously invalidated.
*
* If this register is nonzero, it must be the physical page
* number (PPN) of a data structure which describes the physical
* layout of the memory region this GMR should describe. The
* descriptor structure will be read synchronously by the SVGA
* device when this register is written. The descriptor need not
* remain allocated for the lifetime of the GMR.
*
* The guest driver should write SVGA_REG_GMR_ID first, then
* SVGA_REG_GMR_DESCRIPTOR.
*
* SVGA_REG_GMR_MAX_IDS --
*
* Read-only.
* The SVGA device may choose to support a maximum number of
* user-defined GMR IDs. This register holds the number of supported
* IDs. (The maximum supported ID plus 1)
*
* SVGA_REG_GMR_MAX_DESCRIPTOR_LENGTH --
*
* Read-only.
* The SVGA device may choose to put a limit on the total number
* of SVGAGuestMemDescriptor structures it will read when defining
* a single GMR.
*
* The descriptor structure is an array of SVGAGuestMemDescriptor
* structures. Each structure may do one of three things:
*
* - Terminate the GMR descriptor list.
* (ppn==0, numPages==0)
*
* - Add a PPN or range of PPNs to the GMR's virtual address space.
* (ppn != 0, numPages != 0)
*
* - Provide the PPN of the next SVGAGuestMemDescriptor, in order to
* support multi-page GMR descriptor tables without forcing the
* driver to allocate physically contiguous memory.
* (ppn != 0, numPages == 0)
*
* Note that each physical page of SVGAGuestMemDescriptor structures
* can describe at least 2MB of guest memory. If the driver needs to
* use more than one page of descriptor structures, it must use one of
* its SVGAGuestMemDescriptors to point to an additional page. The
* device will never automatically cross a page boundary.
*
* Once the driver has described a GMR, it is immediately available
* for use via any FIFO command that uses an SVGAGuestPtr structure.
* These pointers include a GMR identifier plus an offset into that
* GMR.
*
* The driver must check the SVGA_CAP_GMR bit before using the GMR
* registers.
*/
/*
* Special GMR IDs, allowing SVGAGuestPtrs to point to framebuffer
* memory as well. In the future, these IDs could even be used to
* allow legacy memory regions to be redefined by the guest as GMRs.
*
* Using the guest framebuffer (GFB) at BAR1 for general purpose DMA
* is being phased out. Please try to use user-defined GMRs whenever
* possible.
*/
#define SVGA_GMR_NULL ((uint32) -1)
#define SVGA_GMR_FRAMEBUFFER ((uint32) -2) /* Guest Framebuffer (GFB) */
typedef
#include "vmware_pack_begin.h"
struct SVGAGuestMemDescriptor {
uint32 ppn;
uint32 numPages;
}
#include "vmware_pack_end.h"
SVGAGuestMemDescriptor;
typedef
#include "vmware_pack_begin.h"
struct SVGAGuestPtr {
uint32 gmrId;
uint32 offset;
}
#include "vmware_pack_end.h"
SVGAGuestPtr;
/*
* Register based command buffers --
*
* Provide an SVGA device interface that allows the guest to submit
* command buffers to the SVGA device through an SVGA device register.
* The metadata for each command buffer is contained in the
* SVGACBHeader structure along with the return status codes.
*
* The SVGA device supports command buffers if
* SVGA_CAP_COMMAND_BUFFERS is set in the device caps register. The
* fifo must be enabled for command buffers to be submitted.
*
* Command buffers are submitted when the guest writing the 64 byte
* aligned physical address into the SVGA_REG_COMMAND_LOW and
* SVGA_REG_COMMAND_HIGH. SVGA_REG_COMMAND_HIGH contains the upper 32
* bits of the physical address. SVGA_REG_COMMAND_LOW contains the
* lower 32 bits of the physical address, since the command buffer
* headers are required to be 64 byte aligned the lower 6 bits are
* used for the SVGACBContext value. Writing to SVGA_REG_COMMAND_LOW
* submits the command buffer to the device and queues it for
* execution. The SVGA device supports at least
* SVGA_CB_MAX_QUEUED_PER_CONTEXT command buffers that can be queued
* per context and if that limit is reached the device will write the
* status SVGA_CB_STATUS_QUEUE_FULL to the status value of the command
* buffer header synchronously and not raise any IRQs.
*
* It is invalid to submit a command buffer without a valid physical
* address and results are undefined.
*
* The device guarantees that command buffers of size SVGA_CB_MAX_SIZE
* will be supported. If a larger command buffer is submitted results
* are unspecified and the device will either complete the command
* buffer or return an error.
*
* The device guarantees that any individual command in a command
* buffer can be up to SVGA_CB_MAX_COMMAND_SIZE in size which is
* enough to fit a 64x64 color-cursor definition. If the command is
* too large the device is allowed to process the command or return an
* error.
*
* The device context is a special SVGACBContext that allows for
* synchronous register like accesses with the flexibility of
* commands. There is a different command set defined by
* SVGADeviceContextCmdId. The commands in each command buffer is not
* allowed to straddle physical pages.
*
* The offset field which is available starting with the
* SVGA_CAP_CMD_BUFFERS_2 cap bit can be set by the guest to bias the
* start of command processing into the buffer. If an error is
* encountered the errorOffset will still be relative to the specific
* PA, not biased by the offset. When the command buffer is finished
* the guest should not read the offset field as there is no guarantee
* what it will set to.
*
* When the SVGA_CAP_HP_CMD_QUEUE cap bit is set a new command queue
* SVGA_CB_CONTEXT_1 is available. Commands submitted to this queue
* will be executed as quickly as possible by the SVGA device
* potentially before already queued commands on SVGA_CB_CONTEXT_0.
* The SVGA device guarantees that any command buffers submitted to
* SVGA_CB_CONTEXT_0 will be executed after any _already_ submitted
* command buffers to SVGA_CB_CONTEXT_1.
*/
#define SVGA_CB_MAX_SIZE (512 * 1024) /* 512 KB */
#define SVGA_CB_MAX_QUEUED_PER_CONTEXT 32
#define SVGA_CB_MAX_COMMAND_SIZE (32 * 1024) /* 32 KB */
#define SVGA_CB_CONTEXT_MASK 0x3f
typedef enum {
SVGA_CB_CONTEXT_DEVICE = 0x3f,
SVGA_CB_CONTEXT_0 = 0x0,
SVGA_CB_CONTEXT_1 = 0x1, /* Supported with SVGA_CAP_HP_CMD_QUEUE */
SVGA_CB_CONTEXT_MAX = 0x2,
} SVGACBContext;
typedef enum {
/*
* The guest is supposed to write SVGA_CB_STATUS_NONE to the status
* field before submitting the command buffer header, the host will
* change the value when it is done with the command buffer.
*/
SVGA_CB_STATUS_NONE = 0,
/*
* Written by the host when a command buffer completes successfully.
* The device raises an IRQ with SVGA_IRQFLAG_COMMAND_BUFFER unless
* the SVGA_CB_FLAG_NO_IRQ flag is set.
*/
SVGA_CB_STATUS_COMPLETED = 1,
/*
* Written by the host synchronously with the command buffer
* submission to indicate the command buffer was not submitted. No
* IRQ is raised.
*/
SVGA_CB_STATUS_QUEUE_FULL = 2,
/*
* Written by the host when an error was detected parsing a command
* in the command buffer, errorOffset is written to contain the
* offset to the first byte of the failing command. The device
* raises the IRQ with both SVGA_IRQFLAG_ERROR and
* SVGA_IRQFLAG_COMMAND_BUFFER. Some of the commands may have been
* processed.
*/
SVGA_CB_STATUS_COMMAND_ERROR = 3,
/*
* Written by the host if there is an error parsing the command
* buffer header. The device raises the IRQ with both
* SVGA_IRQFLAG_ERROR and SVGA_IRQFLAG_COMMAND_BUFFER. The device
* did not processes any of the command buffer.
*/
SVGA_CB_STATUS_CB_HEADER_ERROR = 4,
/*
* Written by the host if the guest requested the host to preempt
* the command buffer. The device will not raise any IRQs and the
* command buffer was not processed.
*/
SVGA_CB_STATUS_PREEMPTED = 5,
/*
* Written by the host synchronously with the command buffer
* submission to indicate the the command buffer was not submitted
* due to an error. No IRQ is raised.
*/
SVGA_CB_STATUS_SUBMISSION_ERROR = 6,
/*
* Written by the host when the host finished a
* SVGA_DC_CMD_ASYNC_STOP_QUEUE request for this command buffer
* queue. The offset of the first byte not processed is stored in
* the errorOffset field of the command buffer header. All guest
* visible side effects of commands till that point are guaranteed
* to be finished before this is written. The
* SVGA_IRQFLAG_COMMAND_BUFFER IRQ is raised as long as the
* SVGA_CB_FLAG_NO_IRQ is not set.
*/
SVGA_CB_STATUS_PARTIAL_COMPLETE = 7,
} SVGACBStatus;
typedef enum {
SVGA_CB_FLAG_NONE = 0,
SVGA_CB_FLAG_NO_IRQ = 1 << 0,
SVGA_CB_FLAG_DX_CONTEXT = 1 << 1,
SVGA_CB_FLAG_MOB = 1 << 2,
} SVGACBFlags;
typedef
#include "vmware_pack_begin.h"
struct {
volatile SVGACBStatus status; /* Modified by device. */
volatile uint32 errorOffset; /* Modified by device. */
uint64 id;
SVGACBFlags flags;
uint32 length;
union {
PA pa;
struct {
SVGAMobId mobid;
uint32 mobOffset;
} mob;
} ptr;
uint32 offset; /* Valid if CMD_BUFFERS_2 cap set, must be zero otherwise,
* modified by device.
*/
uint32 dxContext; /* Valid if DX_CONTEXT flag set, must be zero otherwise */
uint32 mustBeZero[6];
}
#include "vmware_pack_end.h"
SVGACBHeader;
typedef enum {
SVGA_DC_CMD_NOP = 0,
SVGA_DC_CMD_START_STOP_CONTEXT = 1,
SVGA_DC_CMD_PREEMPT = 2,
SVGA_DC_CMD_START_QUEUE = 3, /* Requires SVGA_CAP_HP_CMD_QUEUE */
SVGA_DC_CMD_ASYNC_STOP_QUEUE = 4, /* Requires SVGA_CAP_HP_CMD_QUEUE */
SVGA_DC_CMD_EMPTY_CONTEXT_QUEUE = 5, /* Requires SVGA_CAP_HP_CMD_QUEUE */
SVGA_DC_CMD_MAX = 6,
} SVGADeviceContextCmdId;
/*
* Starts or stops both SVGA_CB_CONTEXT_0 and SVGA_CB_CONTEXT_1.
*/
typedef struct SVGADCCmdStartStop {
uint32 enable;
SVGACBContext context; /* Must be zero */
} SVGADCCmdStartStop;
/*
* SVGADCCmdPreempt --
*
* This command allows the guest to request that all command buffers
* on SVGA_CB_CONTEXT_0 be preempted that can be. After execution
* of this command all command buffers that were preempted will
* already have SVGA_CB_STATUS_PREEMPTED written into the status
* field. The device might still be processing a command buffer,
* assuming execution of it started before the preemption request was
* received. Specifying the ignoreIDZero flag to TRUE will cause the
* device to not preempt command buffers with the id field in the
* command buffer header set to zero.
*/
typedef struct SVGADCCmdPreempt {
SVGACBContext context; /* Must be zero */
uint32 ignoreIDZero;
} SVGADCCmdPreempt;
/*
* Starts the requested command buffer processing queue. Valid only
* if the SVGA_CAP_HP_CMD_QUEUE cap is set.
*
* For a command queue to be considered runnable it must be enabled
* and any corresponding higher priority queues must also be enabled.
* For example in order for command buffers to be processed on
* SVGA_CB_CONTEXT_0 both SVGA_CB_CONTEXT_0 and SVGA_CB_CONTEXT_1 must
* be enabled. But for commands to be runnable on SVGA_CB_CONTEXT_1
* only that queue must be enabled.
*/
typedef struct SVGADCCmdStartQueue {
SVGACBContext context;
} SVGADCCmdStartQueue;
/*
* Requests the SVGA device to stop processing the requested command
* buffer queue as soon as possible. The guest knows the stop has
* completed when one of the following happens.
*
* 1) A command buffer status of SVGA_CB_STATUS_PARTIAL_COMPLETE is returned
* 2) A command buffer error is encountered with would stop the queue
* regardless of the async stop request.
* 3) All command buffers that have been submitted complete successfully.
* 4) The stop completes synchronously if no command buffers are
* active on the queue when it is issued.
*
* If the command queue is not in a runnable state there is no
* guarentee this async stop will finish. For instance if the high
* priority queue is not enabled and a stop is requested on the low
* priority queue, the high priority queue must be reenabled to
* guarantee that the async stop will finish.
*
* This command along with SVGA_DC_CMD_EMPTY_CONTEXT_QUEUE can be used
* to implement mid command buffer preemption.
*
* Valid only if the SVGA_CAP_HP_CMD_QUEUE cap is set.
*/
typedef struct SVGADCCmdAsyncStopQueue {
SVGACBContext context;
} SVGADCCmdAsyncStopQueue;
/*
* Requests the SVGA device to throw away any full command buffers on
* the requested command queue that have not been started. For a
* driver to know which command buffers were thrown away a driver
* should only issue this command when the queue is stopped, for
* whatever reason.
*/
typedef struct SVGADCCmdEmptyQueue {
SVGACBContext context;
} SVGADCCmdEmptyQueue;
/*
* SVGAGMRImageFormat --
*
* This is a packed representation of the source 2D image format
* for a GMR-to-screen blit. Currently it is defined as an encoding
* of the screen's color depth and bits-per-pixel, however, 16 bits
* are reserved for future use to identify other encodings (such as
* RGBA or higher-precision images).
*
* Currently supported formats:
*
* bpp depth Format Name
* --- ----- -----------
* 32 24 32-bit BGRX
* 24 24 24-bit BGR
* 16 16 RGB 5-6-5
* 16 15 RGB 5-5-5
*
*/
typedef struct SVGAGMRImageFormat {
union {
struct {
uint32 bitsPerPixel : 8;
uint32 colorDepth : 8;
uint32 reserved : 16; /* Must be zero */
};
uint32 value;
};
} SVGAGMRImageFormat;
typedef
#include "vmware_pack_begin.h"
struct SVGAGuestImage {
SVGAGuestPtr ptr;
/*
* A note on interpretation of pitch: This value of pitch is the
* number of bytes between vertically adjacent image
* blocks. Normally this is the number of bytes between the first
* pixel of two adjacent scanlines. With compressed textures,
* however, this may represent the number of bytes between
* compression blocks rather than between rows of pixels.
*
* XXX: Compressed textures currently must be tightly packed in guest memory.
*
* If the image is 1-dimensional, pitch is ignored.
*
* If 'pitch' is zero, the SVGA3D device calculates a pitch value
* assuming each row of blocks is tightly packed.
*/
uint32 pitch;
}
#include "vmware_pack_end.h"
SVGAGuestImage;
/*
* SVGAColorBGRX --
*
* A 24-bit color format (BGRX), which does not depend on the
* format of the legacy guest framebuffer (GFB) or the current
* GMRFB state.
*/
typedef struct SVGAColorBGRX {
union {
struct {
uint32 b : 8;
uint32 g : 8;
uint32 r : 8;
uint32 x : 8; /* Unused */
};
uint32 value;
};
} SVGAColorBGRX;
/*
* SVGASignedRect --
* SVGASignedPoint --
*
* Signed rectangle and point primitives. These are used by the new
* 2D primitives for drawing to Screen Objects, which can occupy a
* signed virtual coordinate space.
*
* SVGASignedRect specifies a half-open interval: the (left, top)
* pixel is part of the rectangle, but the (right, bottom) pixel is
* not.
*/
typedef
#include "vmware_pack_begin.h"
struct {
int32 left;
int32 top;
int32 right;
int32 bottom;
}
#include "vmware_pack_end.h"
SVGASignedRect;
typedef
#include "vmware_pack_begin.h"
struct {
int32 x;
int32 y;
}
#include "vmware_pack_end.h"
SVGASignedPoint;
/*
* SVGA Device Capabilities
*
* Note the holes in the bitfield. Missing bits have been deprecated,
* and must not be reused. Those capabilities will never be reported
* by new versions of the SVGA device.
*
* SVGA_CAP_IRQMASK --
* Provides device interrupts. Adds device register SVGA_REG_IRQMASK
* to set interrupt mask and direct I/O port SVGA_IRQSTATUS_PORT to
* set/clear pending interrupts.
*
* SVGA_CAP_GMR --
* Provides synchronous mapping of guest memory regions (GMR).
* Adds device registers SVGA_REG_GMR_ID, SVGA_REG_GMR_DESCRIPTOR,
* SVGA_REG_GMR_MAX_IDS, and SVGA_REG_GMR_MAX_DESCRIPTOR_LENGTH.
*
* SVGA_CAP_TRACES --
* Allows framebuffer trace-based updates even when FIFO is enabled.
* Adds device register SVGA_REG_TRACES.
*
* SVGA_CAP_GMR2 --
* Provides asynchronous commands to define and remap guest memory
* regions. Adds device registers SVGA_REG_GMRS_MAX_PAGES and
* SVGA_REG_MEMORY_SIZE.
*
* SVGA_CAP_SCREEN_OBJECT_2 --
* Allow screen object support, and require backing stores from the
* guest for each screen object.
*
* SVGA_CAP_COMMAND_BUFFERS --
* Enable register based command buffer submission.
*
* SVGA_CAP_DEAD1 --
* This cap was incorrectly used by old drivers and should not be
* reused.
*
* SVGA_CAP_CMD_BUFFERS_2 --
* Enable support for the prepend command buffer submision
* registers. SVGA_REG_CMD_PREPEND_LOW and
* SVGA_REG_CMD_PREPEND_HIGH.
*
* SVGA_CAP_GBOBJECTS --
* Enable guest-backed objects and surfaces.
*
* 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.)
*
* SVGA_CAP_CAP2_REGISTER --
* If this cap is present, the SVGA_REG_CAP2 register is supported.
*/
#define SVGA_CAP_NONE 0x00000000
#define SVGA_CAP_RECT_COPY 0x00000002
#define SVGA_CAP_CURSOR 0x00000020
#define SVGA_CAP_CURSOR_BYPASS 0x00000040
#define SVGA_CAP_CURSOR_BYPASS_2 0x00000080
#define SVGA_CAP_8BIT_EMULATION 0x00000100
#define SVGA_CAP_ALPHA_CURSOR 0x00000200
#define SVGA_CAP_3D 0x00004000
#define SVGA_CAP_EXTENDED_FIFO 0x00008000
#define SVGA_CAP_MULTIMON 0x00010000
#define SVGA_CAP_PITCHLOCK 0x00020000
#define SVGA_CAP_IRQMASK 0x00040000
#define SVGA_CAP_DISPLAY_TOPOLOGY 0x00080000
#define SVGA_CAP_GMR 0x00100000
#define SVGA_CAP_TRACES 0x00200000
#define SVGA_CAP_GMR2 0x00400000
#define SVGA_CAP_SCREEN_OBJECT_2 0x00800000
#define SVGA_CAP_COMMAND_BUFFERS 0x01000000
#define SVGA_CAP_DEAD1 0x02000000
#define SVGA_CAP_CMD_BUFFERS_2 0x04000000
#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_CAP2_REGISTER 0x80000000
/*
* The SVGA_REG_CAP2 register is an additional set of SVGA capability bits.
*
* SVGA_CAP2_GROW_OTABLE --
* Allow the GrowOTable/DXGrowCOTable commands.
*
* SVGA_CAP2_INTRA_SURFACE_COPY --
* Allow the IntraSurfaceCopy command.
*
* SVGA_CAP2_DX2 --
* Allow the DefineGBSurface_v3, WholeSurfaceCopy, WriteZeroSurface, and
* HintZeroSurface commands, and the SVGA_REG_GUEST_DRIVER_ID register.
*
* SVGA_CAP2_GB_MEMSIZE_2 --
* Allow the SVGA_REG_GBOBJECT_MEM_SIZE_KB register.
*
* SVGA_CAP2_SCREENDMA_REG --
* Allow the SVGA_REG_SCREENDMA register.
*
* SVGA_CAP2_OTABLE_PTDEPTH_2 --
* Allow 2 level page tables for OTable commands.
*
* SVGA_CAP2_NON_MS_TO_MS_STRETCHBLT --
* Allow a stretch blt from a non-multisampled surface to a multisampled
* surface.
*
* SVGA_CAP2_CURSOR_MOB --
* Allow the SVGA_REG_CURSOR_MOBID register.
*
* SVGA_CAP2_MSHINT --
* Allow the SVGA_REG_MSHINT register.
*
* SVGA_CAP2_DX3 --
* Allows the DefineGBSurface_v4 command.
* Allows the DXDefineDepthStencilView_v2, DXDefineStreamOutputWithMob,
* and DXBindStreamOutput commands if 3D is also available.
* Allows the DXPredStagingCopy and DXStagingCopy commands if SM41
* is also available.
*
* SVGA_CAP2_RESERVED --
* Reserve the last bit for extending the SVGA capabilities to some
* future mechanisms.
*/
#define SVGA_CAP2_NONE 0x00000000
#define SVGA_CAP2_GROW_OTABLE 0x00000001
#define SVGA_CAP2_INTRA_SURFACE_COPY 0x00000002
#define SVGA_CAP2_DX2 0x00000004
#define SVGA_CAP2_GB_MEMSIZE_2 0x00000008
#define SVGA_CAP2_SCREENDMA_REG 0x00000010
#define SVGA_CAP2_OTABLE_PTDEPTH_2 0x00000020
#define SVGA_CAP2_NON_MS_TO_MS_STRETCHBLT 0x00000040
#define SVGA_CAP2_CURSOR_MOB 0x00000080
#define SVGA_CAP2_MSHINT 0x00000100
#define SVGA_CAP2_DX3 0x00000400
#define SVGA_CAP2_RESERVED 0x80000000
/*
* The Guest can optionally read some SVGA device capabilities through
* the backdoor with command BDOOR_CMD_GET_SVGA_CAPABILITIES before
* the SVGA device is initialized. The type of capability the guest
* is requesting from the SVGABackdoorCapType enum should be placed in
* the upper 16 bits of the backdoor command id (ECX). On success the
* the value of EBX will be set to BDOOR_MAGIC and EAX will be set to
* the requested capability. If the command is not supported then EBX
* will be left unchanged and EAX will be set to -1. Because it is
* possible that -1 is the value of the requested cap the correct way
* to check if the command was successful is to check if EBX was changed
* to BDOOR_MAGIC making sure to initialize the register to something
* else first.
*/
typedef enum {
SVGABackdoorCapDeviceCaps = 0,
SVGABackdoorCapFifoCaps = 1,
SVGABackdoorCap3dHWVersion = 2,
SVGABackdoorCapDeviceCaps2 = 3,
SVGABackdoorCapDevelCaps = 4,
SVGABackdoorDevelRenderer = 5,
SVGABackdoorCapMax = 6,
} SVGABackdoorCapType;
/*
* FIFO register indices.
*
* The FIFO is a chunk of device memory mapped into guest physmem. It
* is always treated as 32-bit words.
*
* The guest driver gets to decide how to partition it between
* - FIFO registers (there are always at least 4, specifying where the
* following data area is and how much data it contains; there may be
* more registers following these, depending on the FIFO protocol
* version in use)
* - FIFO data, written by the guest and slurped out by the VMX.
* These indices are 32-bit word offsets into the FIFO.
*/
enum {
/*
* Block 1 (basic registers): The originally defined FIFO registers.
* These exist and are valid for all versions of the FIFO protocol.
*/
SVGA_FIFO_MIN = 0,
SVGA_FIFO_MAX, /* The distance from MIN to MAX must be at least 10K */
SVGA_FIFO_NEXT_CMD,
SVGA_FIFO_STOP,
/*
* Block 2 (extended registers): Mandatory registers for the extended
* FIFO. These exist if the SVGA caps register includes
* SVGA_CAP_EXTENDED_FIFO; some of them are valid only if their
* associated capability bit is enabled.
*
* Note that when originally defined, SVGA_CAP_EXTENDED_FIFO implied
* support only for (FIFO registers) CAPABILITIES, FLAGS, and FENCE.
* This means that the guest has to test individually (in most cases
* using FIFO caps) for the presence of registers after this; the VMX
* can define "extended FIFO" to mean whatever it wants, and currently
* won't enable it unless there's room for that set and much more.
*/
SVGA_FIFO_CAPABILITIES = 4,
SVGA_FIFO_FLAGS,
/* Valid with SVGA_FIFO_CAP_FENCE: */
SVGA_FIFO_FENCE,
/*
* Block 3a (optional extended registers): Additional registers for the
* extended FIFO, whose presence isn't actually implied by
* SVGA_CAP_EXTENDED_FIFO; these exist if SVGA_FIFO_MIN is high enough to
* leave room for them.
*
* These in block 3a, the VMX currently considers mandatory for the
* extended FIFO.
*/
/* Valid if exists (i.e. if extended FIFO enabled): */
SVGA_FIFO_3D_HWVERSION, /* See SVGA3dHardwareVersion in svga3d_reg.h */
/* Valid with SVGA_FIFO_CAP_PITCHLOCK: */
SVGA_FIFO_PITCHLOCK,
/* Valid with SVGA_FIFO_CAP_CURSOR_BYPASS_3: */
SVGA_FIFO_CURSOR_ON, /* Cursor bypass 3 show/hide register */
SVGA_FIFO_CURSOR_X, /* Cursor bypass 3 x register */
SVGA_FIFO_CURSOR_Y, /* Cursor bypass 3 y register */
SVGA_FIFO_CURSOR_COUNT, /* Incremented when any of the other 3 change */
SVGA_FIFO_CURSOR_LAST_UPDATED,/* Last time the host updated the cursor */
/* Valid with SVGA_FIFO_CAP_RESERVE: */
SVGA_FIFO_RESERVED, /* Bytes past NEXT_CMD with real contents */
/*
* Valid with SVGA_FIFO_CAP_SCREEN_OBJECT or SVGA_FIFO_CAP_SCREEN_OBJECT_2:
*
* By default this is SVGA_ID_INVALID, to indicate that the cursor
* coordinates are specified relative to the virtual root. If this
* is set to a specific screen ID, cursor position is reinterpreted
* as a signed offset relative to that screen's origin.
*/
SVGA_FIFO_CURSOR_SCREEN_ID,
/*
* Valid with SVGA_FIFO_CAP_DEAD
*
* An arbitrary value written by the host, drivers should not use it.
*/
SVGA_FIFO_DEAD,
/*
* Valid with SVGA_FIFO_CAP_3D_HWVERSION_REVISED:
*
* Contains 3D HWVERSION (see SVGA3dHardwareVersion in svga3d_reg.h)
* on platforms that can enforce graphics resource limits.
*/
SVGA_FIFO_3D_HWVERSION_REVISED,
/*
* XXX: The gap here, up until SVGA_FIFO_3D_CAPS, can be used for new
* registers, but this must be done carefully and with judicious use of
* capability bits, since comparisons based on SVGA_FIFO_MIN aren't
* enough to tell you whether the register exists: we've shipped drivers
* and products that used SVGA_FIFO_3D_CAPS but didn't know about some of
* the earlier ones. The actual order of introduction was:
* - PITCHLOCK
* - 3D_CAPS
* - CURSOR_* (cursor bypass 3)
* - RESERVED
* So, code that wants to know whether it can use any of the
* aforementioned registers, or anything else added after PITCHLOCK and
* before 3D_CAPS, needs to reason about something other than
* SVGA_FIFO_MIN.
*/
/*
* 3D caps block space; valid with 3D hardware version >=
* SVGA3D_HWVERSION_WS6_B1.
*/
SVGA_FIFO_3D_CAPS = 32,
SVGA_FIFO_3D_CAPS_LAST = 32 + 255,
/*
* End of VMX's current definition of "extended-FIFO registers".
* Registers before here are always enabled/disabled as a block; either
* the extended FIFO is enabled and includes all preceding registers, or
* it's disabled entirely.
*
* Block 3b (truly optional extended registers): Additional registers for
* the extended FIFO, which the VMX already knows how to enable and
* disable with correct granularity.
*
* Registers after here exist if and only if the guest SVGA driver
* sets SVGA_FIFO_MIN high enough to leave room for them.
*/
/* Valid if register exists: */
SVGA_FIFO_GUEST_3D_HWVERSION, /* Guest driver's 3D version */
SVGA_FIFO_FENCE_GOAL, /* Matching target for SVGA_IRQFLAG_FENCE_GOAL */
SVGA_FIFO_BUSY, /* See "FIFO Synchronization Registers" */
/*
* Always keep this last. This defines the maximum number of
* registers we know about. At power-on, this value is placed in
* the SVGA_REG_MEM_REGS register, and we expect the guest driver
* to allocate this much space in FIFO memory for registers.
*/
SVGA_FIFO_NUM_REGS
};
/*
* Definition of registers included in extended FIFO support.
*
* The guest SVGA driver gets to allocate the FIFO between registers
* and data. It must always allocate at least 4 registers, but old
* drivers stopped there.
*
* The VMX will enable extended FIFO support if and only if the guest
* left enough room for all registers defined as part of the mandatory
* set for the extended FIFO.
*
* Note that the guest drivers typically allocate the FIFO only at
* initialization time, not at mode switches, so it's likely that the
* number of FIFO registers won't change without a reboot.
*
* All registers less than this value are guaranteed to be present if
* svgaUser->fifo.extended is set. Any later registers must be tested
* individually for compatibility at each use (in the VMX).
*
* This value is used only by the VMX, so it can change without
* affecting driver compatibility; keep it that way?
*/
#define SVGA_FIFO_EXTENDED_MANDATORY_REGS (SVGA_FIFO_3D_CAPS_LAST + 1)
/*
* FIFO Synchronization Registers
*
* SVGA_REG_SYNC --
*
* The SYNC register can be used by the guest driver to signal to the
* device that the guest driver is waiting for previously submitted
* commands to complete.
*
* When the guest driver writes to the SYNC register, the device sets
* the BUSY register to TRUE, and starts processing the submitted commands
* (if it was not already doing so). When all previously submitted
* commands are finished and the device is idle again, it sets the BUSY
* register back to FALSE. (If the guest driver submits new commands
* after writing the SYNC register, the new commands are not guaranteed
* to have been procesesd.)
*
* When guest drivers are submitting commands using the FIFO, the device
* periodically polls to check for new FIFO commands when idle, which may
* introduce a delay in command processing. If the guest-driver wants
* the commands to be processed quickly (which it typically does), it
* should write SYNC after each batch of commands is committed to the
* FIFO to immediately wake up the device. For even better performance,
* the guest can use the SVGA_FIFO_BUSY register to avoid these extra
* SYNC writes if the device is already active, using the technique known
* as "Ringing the Doorbell" (described below). (Note that command
* buffer submission implicitly wakes up the device, and so doesn't
* suffer from this problem.)
*
* The SYNC register can also be used in combination with BUSY to
* synchronously ensure that all SVGA commands are processed (with both
* the FIFO and command-buffers). To do this, the guest driver should
* write to SYNC, and then loop reading BUSY until BUSY returns FALSE.
* This technique is known as a "Legacy Sync".
*
* SVGA_REG_BUSY --
*
* This register is set to TRUE when SVGA_REG_SYNC is written,
* and is set back to FALSE when the device has finished processing
* all commands and is idle again.
*
* Every read from the BUSY reigster will block for an undefined
* amount of time (normally until the device finishes some interesting
* work unit), or the device is idle.
*
* Guest drivers can also do a partial Legacy Sync to check for some
* particular condition, for instance by stopping early when a fence
* passes before BUSY has been set back to FALSE. This is particularly
* useful if the guest-driver knows that it is blocked waiting on the
* device, because it will yield CPU time back to the host.
*
* SVGA_FIFO_BUSY --
*
* The SVGA_FIFO_BUSY register is a fast way for the guest driver to check
* whether the device is actively processing FIFO commands before writing
* the more expensive SYNC register.
*
* If this register reads as TRUE, the device is actively processing
* FIFO commands.
*
* If this register reads as FALSE, the device may not be actively
* processing commands, and the guest driver should try
* "Ringing the Doorbell".
*
* To Ring the Doorbell, the guest should:
*
* 1. Have already written their batch of commands into the FIFO.
* 2. Check if the SVGA_FIFO_BUSY register is available by reading
* SVGA_FIFO_MIN.
* 3. Read SVGA_FIFO_BUSY. If it reads as TRUE, the device is actively
* processing FIFO commands, and no further action is necessary.
* 4. If SVGA_FIFO_BUSY was FALSE, write TRUE to SVGA_REG_SYNC.
*
* For maximum performance, this procedure should be followed after
* every meaningful batch of commands has been written into the FIFO.
* (Normally when the underlying application signals it's finished a
* meaningful work unit by calling Flush.)
*/
/*
* FIFO Capabilities
*
* Fence -- Fence register and command are supported
* Accel Front -- Front buffer only commands are supported
* Pitch Lock -- Pitch lock register is supported
* Video -- SVGA Video overlay units are supported
* Escape -- Escape command is supported
*
* SVGA_FIFO_CAP_SCREEN_OBJECT --
*
* Provides dynamic multi-screen rendering, for improved Unity and
* multi-monitor modes. With Screen Object, the guest can
* dynamically create and destroy 'screens', which can represent
* Unity windows or virtual monitors. Screen Object also provides
* strong guarantees that DMA operations happen only when
* guest-initiated. Screen Object deprecates the BAR1 guest
* framebuffer (GFB) and all commands that work only with the GFB.
*
* New registers:
* FIFO_CURSOR_SCREEN_ID, VIDEO_DATA_GMRID, VIDEO_DST_SCREEN_ID
*
* New 2D commands:
* DEFINE_SCREEN, DESTROY_SCREEN, DEFINE_GMRFB, BLIT_GMRFB_TO_SCREEN,
* BLIT_SCREEN_TO_GMRFB, ANNOTATION_FILL, ANNOTATION_COPY
*
* New 3D commands:
* BLIT_SURFACE_TO_SCREEN
*
* New guarantees:
*
* - The host will not read or write guest memory, including the GFB,
* except when explicitly initiated by a DMA command.
*
* - All DMA, including legacy DMA like UPDATE and PRESENT_READBACK,
* is guaranteed to complete before any subsequent FENCEs.
*
* - All legacy commands which affect a Screen (UPDATE, PRESENT,
* PRESENT_READBACK) as well as new Screen blit commands will
* all behave consistently as blits, and memory will be read
* or written in FIFO order.
*
* For example, if you PRESENT from one SVGA3D surface to multiple
* places on the screen, the data copied will always be from the
* SVGA3D surface at the time the PRESENT was issued in the FIFO.
* This was not necessarily true on devices without Screen Object.
*
* This means that on devices that support Screen Object, the
* PRESENT_READBACK command should not be necessary unless you
* actually want to read back the results of 3D rendering into
* system memory. (And for that, the BLIT_SCREEN_TO_GMRFB
* command provides a strict superset of functionality.)
*
* - When a screen is resized, either using Screen Object commands or
* legacy multimon registers, its contents are preserved.
*
* SVGA_FIFO_CAP_GMR2 --
*
* Provides new commands to define and remap guest memory regions (GMR).
*
* New 2D commands:
* DEFINE_GMR2, REMAP_GMR2.
*
* SVGA_FIFO_CAP_3D_HWVERSION_REVISED --
*
* Indicates new register SVGA_FIFO_3D_HWVERSION_REVISED exists.
* This register may replace SVGA_FIFO_3D_HWVERSION on platforms
* that enforce graphics resource limits. This allows the platform
* to clear SVGA_FIFO_3D_HWVERSION and disable 3D in legacy guest
* drivers that do not limit their resources.
*
* Note this is an alias to SVGA_FIFO_CAP_GMR2 because these indicators
* are codependent (and thus we use a single capability bit).
*
* SVGA_FIFO_CAP_SCREEN_OBJECT_2 --
*
* Modifies the DEFINE_SCREEN command to include a guest provided
* backing store in GMR memory and the bytesPerLine for the backing
* store. This capability requires the use of a backing store when
* creating screen objects. However if SVGA_FIFO_CAP_SCREEN_OBJECT
* is present then backing stores are optional.
*
* SVGA_FIFO_CAP_DEAD --
*
* Drivers should not use this cap bit. This cap bit can not be
* reused since some hosts already expose it.
*/
#define SVGA_FIFO_CAP_NONE 0
#define SVGA_FIFO_CAP_FENCE (1<<0)
#define SVGA_FIFO_CAP_ACCELFRONT (1<<1)
#define SVGA_FIFO_CAP_PITCHLOCK (1<<2)
#define SVGA_FIFO_CAP_VIDEO (1<<3)
#define SVGA_FIFO_CAP_CURSOR_BYPASS_3 (1<<4)
#define SVGA_FIFO_CAP_ESCAPE (1<<5)
#define SVGA_FIFO_CAP_RESERVE (1<<6)
#define SVGA_FIFO_CAP_SCREEN_OBJECT (1<<7)
#define SVGA_FIFO_CAP_GMR2 (1<<8)
#define SVGA_FIFO_CAP_3D_HWVERSION_REVISED SVGA_FIFO_CAP_GMR2
#define SVGA_FIFO_CAP_SCREEN_OBJECT_2 (1<<9)
#define SVGA_FIFO_CAP_DEAD (1<<10)
/*
* FIFO Flags
*
* Accel Front -- Driver should use front buffer only commands
*/
#define SVGA_FIFO_FLAG_NONE 0
#define SVGA_FIFO_FLAG_ACCELFRONT (1<<0)
#define SVGA_FIFO_FLAG_RESERVED (1<<31) /* Internal use only */
/*
* FIFO reservation sentinel value
*/
#define SVGA_FIFO_RESERVED_UNKNOWN 0xffffffff
/*
* ScreenDMA Register Values
*/
#define SVGA_SCREENDMA_REG_UNDEFINED 0
#define SVGA_SCREENDMA_REG_NOT_PRESENT 1
#define SVGA_SCREENDMA_REG_PRESENT 2
#define SVGA_SCREENDMA_REG_MAX 3
/*
* Video overlay support
*/
#define SVGA_NUM_OVERLAY_UNITS 32
/*
* Video capabilities that the guest is currently using
*/
#define SVGA_VIDEO_FLAG_COLORKEY 0x0001
/*
* Offsets for the video overlay registers
*/
enum {
SVGA_VIDEO_ENABLED = 0,
SVGA_VIDEO_FLAGS,
SVGA_VIDEO_DATA_OFFSET,
SVGA_VIDEO_FORMAT,
SVGA_VIDEO_COLORKEY,
SVGA_VIDEO_SIZE, /* Deprecated */
SVGA_VIDEO_WIDTH,
SVGA_VIDEO_HEIGHT,
SVGA_VIDEO_SRC_X,
SVGA_VIDEO_SRC_Y,
SVGA_VIDEO_SRC_WIDTH,
SVGA_VIDEO_SRC_HEIGHT,
SVGA_VIDEO_DST_X, /* Signed int32 */
SVGA_VIDEO_DST_Y, /* Signed int32 */
SVGA_VIDEO_DST_WIDTH,
SVGA_VIDEO_DST_HEIGHT,
SVGA_VIDEO_PITCH_1,
SVGA_VIDEO_PITCH_2,
SVGA_VIDEO_PITCH_3,
SVGA_VIDEO_DATA_GMRID, /* Optional, defaults to SVGA_GMR_FRAMEBUFFER */
SVGA_VIDEO_DST_SCREEN_ID, /* Optional, defaults to virtual coords */
/* (SVGA_ID_INVALID) */
SVGA_VIDEO_NUM_REGS
};
/*
* SVGA Overlay Units
*
* width and height relate to the entire source video frame.
* srcX, srcY, srcWidth and srcHeight represent subset of the source
* video frame to be displayed.
*/
typedef
#include "vmware_pack_begin.h"
struct SVGAOverlayUnit {
uint32 enabled;
uint32 flags;
uint32 dataOffset;
uint32 format;
uint32 colorKey;
uint32 size;
uint32 width;
uint32 height;
uint32 srcX;
uint32 srcY;
uint32 srcWidth;
uint32 srcHeight;
int32 dstX;
int32 dstY;
uint32 dstWidth;
uint32 dstHeight;
uint32 pitches[3];
uint32 dataGMRId;
uint32 dstScreenId;
}
#include "vmware_pack_end.h"
SVGAOverlayUnit;
/*
* Guest display topology
*
* XXX: This structure is not part of the SVGA device's interface, and
* doesn't really belong here.
*/
#define SVGA_INVALID_DISPLAY_ID ((uint32)-1)
typedef struct SVGADisplayTopology {
uint16 displayId;
uint16 isPrimary;
uint32 width;
uint32 height;
uint32 positionX;
uint32 positionY;
} SVGADisplayTopology;
/*
* SVGAScreenObject --
*
* This is a new way to represent a guest's multi-monitor screen or
* Unity window. Screen objects are only supported if the
* SVGA_FIFO_CAP_SCREEN_OBJECT capability bit is set.
*
* If Screen Objects are supported, they can be used to fully
* replace the functionality provided by the framebuffer registers
* (SVGA_REG_WIDTH, HEIGHT, etc.) and by SVGA_CAP_DISPLAY_TOPOLOGY.
*
* The screen object is a struct with guaranteed binary
* compatibility. New flags can be added, and the struct may grow,
* but existing fields must retain their meaning.
*
* Added with SVGA_FIFO_CAP_SCREEN_OBJECT_2 are required fields of
* a SVGAGuestPtr that is used to back the screen contents. This
* memory must come from the GFB. The guest is not allowed to
* access the memory and doing so will have undefined results. The
* backing store is required to be page aligned and the size is
* padded to the next page boundry. The number of pages is:
* (bytesPerLine * size.width * 4 + PAGE_SIZE - 1) / PAGE_SIZE
*
* The pitch in the backingStore is required to be at least large
* enough to hold a 32bbp scanline. It is recommended that the
* driver pad bytesPerLine for a potential performance win.
*
* The cloneCount field is treated as a hint from the guest that
* the user wants this display to be cloned, countCount times. A
* value of zero means no cloning should happen.
*/
#define SVGA_SCREEN_MUST_BE_SET (1 << 0)
#define SVGA_SCREEN_HAS_ROOT SVGA_SCREEN_MUST_BE_SET /* Deprecated */
#define SVGA_SCREEN_IS_PRIMARY (1 << 1)
#define SVGA_SCREEN_FULLSCREEN_HINT (1 << 2)
/*
* Added with SVGA_FIFO_CAP_SCREEN_OBJECT_2. When the screen is
* deactivated the base layer is defined to lose all contents and
* become black. When a screen is deactivated the backing store is
* optional. When set backingPtr and bytesPerLine will be ignored.
*/
#define SVGA_SCREEN_DEACTIVATE (1 << 3)
/*
* Added with SVGA_FIFO_CAP_SCREEN_OBJECT_2. When this flag is set
* the screen contents will be outputted as all black to the user
* though the base layer contents is preserved. The screen base layer
* can still be read and written to like normal though the no visible
* effect will be seen by the user. When the flag is changed the
* screen will be blanked or redrawn to the current contents as needed
* without any extra commands from the driver. This flag only has an
* effect when the screen is not deactivated.
*/
#define SVGA_SCREEN_BLANKING (1 << 4)
typedef
#include "vmware_pack_begin.h"
struct {
uint32 structSize; /* sizeof(SVGAScreenObject) */
uint32 id;
uint32 flags;
struct {
uint32 width;
uint32 height;
} size;
struct {
int32 x;
int32 y;
} root;
/*
* Added and required by SVGA_FIFO_CAP_SCREEN_OBJECT_2, optional
* with SVGA_FIFO_CAP_SCREEN_OBJECT.
*/
SVGAGuestImage backingStore;
/*
* The cloneCount field is treated as a hint from the guest that
* the user wants this display to be cloned, cloneCount times.
*
* A value of zero means no cloning should happen.
*/
uint32 cloneCount;
}
#include "vmware_pack_end.h"
SVGAScreenObject;
/*
* Commands in the command FIFO:
*
* Command IDs defined below are used for the traditional 2D FIFO
* communication (not all commands are available for all versions of the
* SVGA FIFO protocol).
*
* Note the holes in the command ID numbers: These commands have been
* deprecated, and the old IDs must not be reused.
*
* Command IDs from 1000 to 2999 are reserved for use by the SVGA3D
* protocol.
*
* Each command's parameters are described by the comments and
* structs below.
*/
typedef enum {
SVGA_CMD_INVALID_CMD = 0,
SVGA_CMD_UPDATE = 1,
SVGA_CMD_RECT_COPY = 3,
SVGA_CMD_RECT_ROP_COPY = 14,
SVGA_CMD_DEFINE_CURSOR = 19,
SVGA_CMD_DEFINE_ALPHA_CURSOR = 22,
SVGA_CMD_UPDATE_VERBOSE = 25,
SVGA_CMD_FRONT_ROP_FILL = 29,
SVGA_CMD_FENCE = 30,
SVGA_CMD_ESCAPE = 33,
SVGA_CMD_DEFINE_SCREEN = 34,
SVGA_CMD_DESTROY_SCREEN = 35,
SVGA_CMD_DEFINE_GMRFB = 36,
SVGA_CMD_BLIT_GMRFB_TO_SCREEN = 37,
SVGA_CMD_BLIT_SCREEN_TO_GMRFB = 38,
SVGA_CMD_ANNOTATION_FILL = 39,
SVGA_CMD_ANNOTATION_COPY = 40,
SVGA_CMD_DEFINE_GMR2 = 41,
SVGA_CMD_REMAP_GMR2 = 42,
SVGA_CMD_DEAD = 43,
SVGA_CMD_DEAD_2 = 44,
SVGA_CMD_NOP = 45,
SVGA_CMD_NOP_ERROR = 46,
SVGA_CMD_MAX
} SVGAFifoCmdId;
#define SVGA_CMD_MAX_DATASIZE (256 * 1024)
#define SVGA_CMD_MAX_ARGS 64
/*
* SVGA_CMD_UPDATE --
*
* This is a DMA transfer which copies from the Guest Framebuffer
* (GFB) at BAR1 + SVGA_REG_FB_OFFSET to any screens which
* intersect with the provided virtual rectangle.
*
* This command does not support using arbitrary guest memory as a
* data source- it only works with the pre-defined GFB memory.
* This command also does not support signed virtual coordinates.
* If you have defined screens (using SVGA_CMD_DEFINE_SCREEN) with
* negative root x/y coordinates, the negative portion of those
* screens will not be reachable by this command.
*
* This command is not necessary when using framebuffer
* traces. Traces are automatically enabled if the SVGA FIFO is
* disabled, and you may explicitly enable/disable traces using
* SVGA_REG_TRACES. With traces enabled, any write to the GFB will
* automatically act as if a subsequent SVGA_CMD_UPDATE was issued.
*
* Traces and SVGA_CMD_UPDATE are the only supported ways to render
* pseudocolor screen updates. The newer Screen Object commands
* only support true color formats.
*
* Availability:
* Always available.
*/
typedef
#include "vmware_pack_begin.h"
struct {
uint32 x;
uint32 y;
uint32 width;
uint32 height;
}
#include "vmware_pack_end.h"
SVGAFifoCmdUpdate;
/*
* SVGA_CMD_RECT_COPY --
*
* Perform a rectangular DMA transfer from one area of the GFB to
* another, and copy the result to any screens which intersect it.
*
* Availability:
* SVGA_CAP_RECT_COPY
*/
typedef
#include "vmware_pack_begin.h"
struct {
uint32 srcX;
uint32 srcY;
uint32 destX;
uint32 destY;
uint32 width;
uint32 height;
}
#include "vmware_pack_end.h"
SVGAFifoCmdRectCopy;
/*
* SVGA_CMD_RECT_ROP_COPY --
*
* Perform a rectangular DMA transfer from one area of the GFB to
* another, and copy the result to any screens which intersect it.
* The value of ROP may only be SVGA_ROP_COPY, and this command is
* only supported for backwards compatibility reasons.
*
* Availability:
* SVGA_CAP_RECT_COPY
*/
typedef
#include "vmware_pack_begin.h"
struct {
uint32 srcX;
uint32 srcY;
uint32 destX;
uint32 destY;
uint32 width;
uint32 height;
uint32 rop;
}
#include "vmware_pack_end.h"
SVGAFifoCmdRectRopCopy;
/*
* SVGA_CMD_DEFINE_CURSOR --
*
* Provide a new cursor image, as an AND/XOR mask.
*
* The recommended way to position the cursor overlay is by using
* the SVGA_FIFO_CURSOR_* registers, supported by the
* SVGA_FIFO_CAP_CURSOR_BYPASS_3 capability.
*
* Availability:
* SVGA_CAP_CURSOR
*/
typedef
#include "vmware_pack_begin.h"
struct {
uint32 id; /* Reserved, must be zero. */
uint32 hotspotX;
uint32 hotspotY;
uint32 width;
uint32 height;
uint32 andMaskDepth; /* Value must be 1 or equal to BITS_PER_PIXEL */
uint32 xorMaskDepth; /* Value must be 1 or equal to BITS_PER_PIXEL */
/*
* Followed by scanline data for AND mask, then XOR mask.
* Each scanline is padded to a 32-bit boundary.
*/
}
#include "vmware_pack_end.h"
SVGAFifoCmdDefineCursor;
/*
* SVGA_CMD_DEFINE_ALPHA_CURSOR --
*
* Provide a new cursor image, in 32-bit BGRA format.
*
* The recommended way to position the cursor overlay is by using
* the SVGA_FIFO_CURSOR_* registers, supported by the
* SVGA_FIFO_CAP_CURSOR_BYPASS_3 capability.
*
* Availability:
* SVGA_CAP_ALPHA_CURSOR
*/
typedef
#include "vmware_pack_begin.h"
struct {
uint32 id; /* Reserved, must be zero. */
uint32 hotspotX;
uint32 hotspotY;
uint32 width;
uint32 height;
/* Followed by scanline data */
}
#include "vmware_pack_end.h"
SVGAFifoCmdDefineAlphaCursor;
/*
* Provide a new large cursor image, as an AND/XOR mask.
*
* Should only be used for CursorMob functionality
*/
typedef
#include "vmware_pack_begin.h"
struct {
uint32 hotspotX;
uint32 hotspotY;
uint32 width;
uint32 height;
uint32 andMaskDepth;
uint32 xorMaskDepth;
/*
* Followed by scanline data for AND mask, then XOR mask.
* Each scanline is padded to a 32-bit boundary.
*/
}
#include "vmware_pack_end.h"
SVGAGBColorCursorHeader;
/*
* Provide a new large cursor image, in 32-bit BGRA format.
*
* Should only be used for CursorMob functionality
*/
typedef
#include "vmware_pack_begin.h"
struct {
uint32 hotspotX;
uint32 hotspotY;
uint32 width;
uint32 height;
/* Followed by scanline data */
}
#include "vmware_pack_end.h"
SVGAGBAlphaCursorHeader;
/*
* Define the SVGA guest backed cursor types
*/
typedef enum {
SVGA_COLOR_CURSOR = 0,
SVGA_ALPHA_CURSOR = 1,
} SVGAGBCursorType;
/*
* Provide a new large cursor image.
*
* Should only be used for CursorMob functionality
*/
typedef
#include "vmware_pack_begin.h"
struct {
SVGAGBCursorType type;
union {
SVGAGBColorCursorHeader colorHeader;
SVGAGBAlphaCursorHeader alphaHeader;
} header;
uint32 sizeInBytes;
/*
* Followed by the cursor data
*/
}
#include "vmware_pack_end.h"
SVGAGBCursorHeader;
/*
* SVGA_CMD_UPDATE_VERBOSE --
*
* Just like SVGA_CMD_UPDATE, but also provide a per-rectangle
* 'reason' value, an opaque cookie which is used by internal
* debugging tools. Third party drivers should not use this
* command.
*
* Availability:
* SVGA_CAP_EXTENDED_FIFO
*/
typedef
#include "vmware_pack_begin.h"
struct {
uint32 x;
uint32 y;
uint32 width;
uint32 height;
uint32 reason;
}
#include "vmware_pack_end.h"
SVGAFifoCmdUpdateVerbose;
/*
* SVGA_CMD_FRONT_ROP_FILL --
*
* This is a hint which tells the SVGA device that the driver has
* just filled a rectangular region of the GFB with a solid
* color. Instead of reading these pixels from the GFB, the device
* can assume that they all equal 'color'. This is primarily used
* for remote desktop protocols.
*
* Availability:
* SVGA_FIFO_CAP_ACCELFRONT
*/
#define SVGA_ROP_COPY 0x03
typedef
#include "vmware_pack_begin.h"
struct {
uint32 color; /* In the same format as the GFB */
uint32 x;
uint32 y;
uint32 width;
uint32 height;
uint32 rop; /* Must be SVGA_ROP_COPY */
}
#include "vmware_pack_end.h"
SVGAFifoCmdFrontRopFill;
/*
* SVGA_CMD_FENCE --
*
* Insert a synchronization fence. When the SVGA device reaches
* this command, it will copy the 'fence' value into the
* SVGA_FIFO_FENCE register. It will also compare the fence against
* SVGA_FIFO_FENCE_GOAL. If the fence matches the goal and the
* SVGA_IRQFLAG_FENCE_GOAL interrupt is enabled, the device will
* raise this interrupt.
*
* Availability:
* SVGA_FIFO_FENCE for this command,
* SVGA_CAP_IRQMASK for SVGA_FIFO_FENCE_GOAL.
*/
typedef
#include "vmware_pack_begin.h"
struct {
uint32 fence;
}
#include "vmware_pack_end.h"
SVGAFifoCmdFence;
/*
* SVGA_CMD_ESCAPE --
*
* Send an extended or vendor-specific variable length command.
* This is used for video overlay, third party plugins, and
* internal debugging tools. See svga_escape.h
*
* Availability:
* SVGA_FIFO_CAP_ESCAPE
*/
typedef
#include "vmware_pack_begin.h"
struct {
uint32 nsid;
uint32 size;
/* followed by 'size' bytes of data */
}
#include "vmware_pack_end.h"
SVGAFifoCmdEscape;
/*
* SVGA_CMD_DEFINE_SCREEN --
*
* Define or redefine an SVGAScreenObject. See the description of
* SVGAScreenObject above. The video driver is responsible for
* generating new screen IDs. They should be small positive
* integers. The virtual device will have an implementation
* specific upper limit on the number of screen IDs
* supported. Drivers are responsible for recycling IDs. The first
* valid ID is zero.
*
* - Interaction with other registers:
*
* For backwards compatibility, when the GFB mode registers (WIDTH,
* HEIGHT, PITCHLOCK, BITS_PER_PIXEL) are modified, the SVGA device
* deletes all screens other than screen #0, and redefines screen
* #0 according to the specified mode. Drivers that use
* SVGA_CMD_DEFINE_SCREEN should destroy or redefine screen #0.
*
* If you use screen objects, do not use the legacy multi-mon
* registers (SVGA_REG_NUM_GUEST_DISPLAYS, SVGA_REG_DISPLAY_*).
*
* Availability:
* SVGA_FIFO_CAP_SCREEN_OBJECT or SVGA_FIFO_CAP_SCREEN_OBJECT_2
*/
typedef
#include "vmware_pack_begin.h"
struct {
SVGAScreenObject screen; /* Variable-length according to version */
}
#include "vmware_pack_end.h"
SVGAFifoCmdDefineScreen;
/*
* SVGA_CMD_DESTROY_SCREEN --
*
* Destroy an SVGAScreenObject. Its ID is immediately available for
* re-use.
*
* Availability:
* SVGA_FIFO_CAP_SCREEN_OBJECT or SVGA_FIFO_CAP_SCREEN_OBJECT_2
*/
typedef
#include "vmware_pack_begin.h"
struct {
uint32 screenId;
}
#include "vmware_pack_end.h"
SVGAFifoCmdDestroyScreen;
/*
* SVGA_CMD_DEFINE_GMRFB --
*
* This command sets a piece of SVGA device state called the
* Guest Memory Region Framebuffer, or GMRFB. The GMRFB is a
* piece of light-weight state which identifies the location and
* format of an image in guest memory or in BAR1. The GMRFB has
* an arbitrary size, and it doesn't need to match the geometry
* of the GFB or any screen object.
*
* The GMRFB can be redefined as often as you like. You could
* always use the same GMRFB, you could redefine it before
* rendering from a different guest screen, or you could even
* redefine it before every blit.
*
* There are multiple ways to use this command. The simplest way is
* to use it to move the framebuffer either to elsewhere in the GFB
* (BAR1) memory region, or to a user-defined GMR. This lets a
* driver use a framebuffer allocated entirely out of normal system
* memory, which we encourage.
*
* Another way to use this command is to set up a ring buffer of
* updates in GFB memory. If a driver wants to ensure that no
* frames are skipped by the SVGA device, it is important that the
* driver not modify the source data for a blit until the device is
* done processing the command. One efficient way to accomplish
* this is to use a ring of small DMA buffers. Each buffer is used
* for one blit, then we move on to the next buffer in the
* ring. The FENCE mechanism is used to protect each buffer from
* re-use until the device is finished with that buffer's
* corresponding blit.
*
* This command does not affect the meaning of SVGA_CMD_UPDATE.
* UPDATEs always occur from the legacy GFB memory area. This
* command has no support for pseudocolor GMRFBs. Currently only
* true-color 15, 16, and 24-bit depths are supported. Future
* devices may expose capabilities for additional framebuffer
* formats.
*
* The default GMRFB value is undefined. Drivers must always send
* this command at least once before performing any blit from the
* GMRFB.
*
* Availability:
* SVGA_FIFO_CAP_SCREEN_OBJECT or SVGA_FIFO_CAP_SCREEN_OBJECT_2
*/
typedef
#include "vmware_pack_begin.h"
struct {
SVGAGuestPtr ptr;
uint32 bytesPerLine;
SVGAGMRImageFormat format;
}
#include "vmware_pack_end.h"
SVGAFifoCmdDefineGMRFB;
/*
* SVGA_CMD_BLIT_GMRFB_TO_SCREEN --
*
* This is a guest-to-host blit. It performs a DMA operation to
* copy a rectangular region of pixels from the current GMRFB to
* a ScreenObject.
*
* The destination coordinate may be specified relative to a
* screen's origin. The provided screen ID must be valid.
*
* The SVGA device is guaranteed to finish reading from the GMRFB
* by the time any subsequent FENCE commands are reached.
*
* This command consumes an annotation. See the
* SVGA_CMD_ANNOTATION_* commands for details.
*
* Availability:
* SVGA_FIFO_CAP_SCREEN_OBJECT or SVGA_FIFO_CAP_SCREEN_OBJECT_2
*/
typedef
#include "vmware_pack_begin.h"
struct {
SVGASignedPoint srcOrigin;
SVGASignedRect destRect;
uint32 destScreenId;
}
#include "vmware_pack_end.h"
SVGAFifoCmdBlitGMRFBToScreen;
/*
* SVGA_CMD_BLIT_SCREEN_TO_GMRFB --
*
* This is a host-to-guest blit. It performs a DMA operation to
* copy a rectangular region of pixels from a single ScreenObject
* back to the current GMRFB.
*
* The source coordinate is specified relative to a screen's
* origin. The provided screen ID must be valid. If any parameters
* are invalid, the resulting pixel values are undefined.
*
* The SVGA device is guaranteed to finish writing to the GMRFB by
* the time any subsequent FENCE commands are reached.
*
* Availability:
* SVGA_FIFO_CAP_SCREEN_OBJECT or SVGA_FIFO_CAP_SCREEN_OBJECT_2
*/
typedef
#include "vmware_pack_begin.h"
struct {
SVGASignedPoint destOrigin;
SVGASignedRect srcRect;
uint32 srcScreenId;
}
#include "vmware_pack_end.h"
SVGAFifoCmdBlitScreenToGMRFB;
/*
* SVGA_CMD_ANNOTATION_FILL --
*
* The annotation commands have been deprecated, should not be used
* by new drivers. They used to provide performance hints to the SVGA
* device about the content of screen updates, but newer SVGA devices
* ignore these.
*
* Availability:
* SVGA_FIFO_CAP_SCREEN_OBJECT or SVGA_FIFO_CAP_SCREEN_OBJECT_2
*/
typedef
#include "vmware_pack_begin.h"
struct {
SVGAColorBGRX color;
}
#include "vmware_pack_end.h"
SVGAFifoCmdAnnotationFill;
/*
* SVGA_CMD_ANNOTATION_COPY --
*
* The annotation commands have been deprecated, should not be used
* by new drivers. They used to provide performance hints to the SVGA
* device about the content of screen updates, but newer SVGA devices
* ignore these.
*
* Availability:
* SVGA_FIFO_CAP_SCREEN_OBJECT or SVGA_FIFO_CAP_SCREEN_OBJECT_2
*/
typedef
#include "vmware_pack_begin.h"
struct {
SVGASignedPoint srcOrigin;
uint32 srcScreenId;
}
#include "vmware_pack_end.h"
SVGAFifoCmdAnnotationCopy;
/*
* SVGA_CMD_DEFINE_GMR2 --
*
* Define guest memory region v2. See the description of GMRs above.
*
* Availability:
* SVGA_CAP_GMR2
*/
typedef
#include "vmware_pack_begin.h"
struct {
uint32 gmrId;
uint32 numPages;
}
#include "vmware_pack_end.h"
SVGAFifoCmdDefineGMR2;
/*
* SVGA_CMD_REMAP_GMR2 --
*
* Remap guest memory region v2. See the description of GMRs above.
*
* This command allows guest to modify a portion of an existing GMR by
* invalidating it or reassigning it to different guest physical pages.
* The pages are identified by physical page number (PPN). The pages
* are assumed to be pinned and valid for DMA operations.
*
* Description of command flags:
*
* SVGA_REMAP_GMR2_VIA_GMR: If enabled, references a PPN list in a GMR.
* The PPN list must not overlap with the remap region (this can be
* handled trivially by referencing a separate GMR). If flag is
* disabled, PPN list is appended to SVGARemapGMR command.
*
* SVGA_REMAP_GMR2_PPN64: If set, PPN list is in PPN64 format, otherwise
* it is in PPN32 format.
*
* SVGA_REMAP_GMR2_SINGLE_PPN: If set, PPN list contains a single entry.
* A single PPN can be used to invalidate a portion of a GMR or
* map it to to a single guest scratch page.
*
* Availability:
* SVGA_CAP_GMR2
*/
typedef enum {
SVGA_REMAP_GMR2_PPN32 = 0,
SVGA_REMAP_GMR2_VIA_GMR = (1 << 0),
SVGA_REMAP_GMR2_PPN64 = (1 << 1),
SVGA_REMAP_GMR2_SINGLE_PPN = (1 << 2),
} SVGARemapGMR2Flags;
typedef
#include "vmware_pack_begin.h"
struct {
uint32 gmrId;
SVGARemapGMR2Flags flags;
uint32 offsetPages; /* offset in pages to begin remap */
uint32 numPages; /* number of pages to remap */
/*
* Followed by additional data depending on SVGARemapGMR2Flags.
*
* If flag SVGA_REMAP_GMR2_VIA_GMR is set, single SVGAGuestPtr follows.
* Otherwise an array of page descriptors in PPN32 or PPN64 format
* (according to flag SVGA_REMAP_GMR2_PPN64) follows. If flag
* SVGA_REMAP_GMR2_SINGLE_PPN is set, array contains a single entry.
*/
}
#include "vmware_pack_end.h"
SVGAFifoCmdRemapGMR2;
/*
* Size of SVGA device memory such as frame buffer and FIFO.
*/
#define SVGA_VRAM_MIN_SIZE (4 * 640 * 480) /* bytes */
#define SVGA_VRAM_MIN_SIZE_3D (16 * 1024 * 1024)
#define SVGA_VRAM_MAX_SIZE (128 * 1024 * 1024)
#define SVGA_MEMORY_SIZE_MAX (1024 * 1024 * 1024)
#define SVGA_FIFO_SIZE_MAX (2 * 1024 * 1024)
#define SVGA_GRAPHICS_MEMORY_KB_MIN (32 * 1024)
#define SVGA_GRAPHICS_MEMORY_KB_MAX_2GB (2 * 1024 * 1024)
#define SVGA_GRAPHICS_MEMORY_KB_MAX_3GB (3 * 1024 * 1024)
#define SVGA_GRAPHICS_MEMORY_KB_MAX_4GB (4 * 1024 * 1024)
#define SVGA_GRAPHICS_MEMORY_KB_MAX_8GB (8 * 1024 * 1024)
#define SVGA_GRAPHICS_MEMORY_KB_DEFAULT (256 * 1024)
#define SVGA_VRAM_SIZE_W2K (64 * 1024 * 1024) /* 64 MB */
#if defined(VMX86_SERVER)
#define SVGA_VRAM_SIZE (4 * 1024 * 1024)
#define SVGA_VRAM_SIZE_3D (64 * 1024 * 1024)
#define SVGA_FIFO_SIZE (256 * 1024)
#define SVGA_FIFO_SIZE_3D (516 * 1024)
#define SVGA_MEMORY_SIZE_DEFAULT (160 * 1024 * 1024)
#define SVGA_AUTODETECT_DEFAULT FALSE
#else
#define SVGA_VRAM_SIZE (16 * 1024 * 1024)
#define SVGA_VRAM_SIZE_3D SVGA_VRAM_MAX_SIZE
#define SVGA_FIFO_SIZE (2 * 1024 * 1024)
#define SVGA_FIFO_SIZE_3D SVGA_FIFO_SIZE
#define SVGA_MEMORY_SIZE_DEFAULT (768 * 1024 * 1024)
#define SVGA_AUTODETECT_DEFAULT TRUE
#endif
#define SVGA_FIFO_SIZE_GBOBJECTS (256 * 1024)
#define SVGA_VRAM_SIZE_GBOBJECTS (4 * 1024 * 1024)
#define SVGA_PCI_REGS_PAGES (1)
#endif
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