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-rw-r--r--sys/dev/drm/i915_drm.h496
1 files changed, 484 insertions, 12 deletions
diff --git a/sys/dev/drm/i915_drm.h b/sys/dev/drm/i915_drm.h
index 778088fb25c9..18db791dafa1 100644
--- a/sys/dev/drm/i915_drm.h
+++ b/sys/dev/drm/i915_drm.h
@@ -1,7 +1,7 @@
/*-
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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
@@ -9,11 +9,11 @@
* 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.
@@ -21,7 +21,7 @@
* 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 <sys/cdefs.h>
@@ -46,7 +46,12 @@ typedef struct _drm_i915_init {
enum {
I915_INIT_DMA = 0x01,
I915_CLEANUP_DMA = 0x02,
- I915_RESUME_DMA = 0x03
+ I915_RESUME_DMA = 0x03,
+
+ /* Since this struct isn't versioned, just used a new
+ * 'func' code to indicate the presence of dri2 sarea
+ * info. */
+ I915_INIT_DMA2 = 0x04
} func;
unsigned int mmio_offset;
int sarea_priv_offset;
@@ -64,10 +69,11 @@ typedef struct _drm_i915_init {
unsigned int depth_pitch;
unsigned int cpp;
unsigned int chipset;
+ unsigned int sarea_handle;
} drm_i915_init_t;
-typedef struct _drm_i915_sarea {
- drm_tex_region_t texList[I915_NR_TEX_REGIONS + 1];
+typedef struct drm_i915_sarea {
+ struct drm_tex_region texList[I915_NR_TEX_REGIONS + 1];
int last_upload; /* last time texture was uploaded */
int last_enqueue; /* last time a buffer was enqueued */
int last_dispatch; /* age of the most recently dispatched buffer */
@@ -107,8 +113,42 @@ typedef struct _drm_i915_sarea {
unsigned int depth_tiled;
unsigned int rotated_tiled;
unsigned int rotated2_tiled;
+
+ int planeA_x;
+ int planeA_y;
+ int planeA_w;
+ int planeA_h;
+ int planeB_x;
+ int planeB_y;
+ int planeB_w;
+ int planeB_h;
+
+ /* Triple buffering */
+ drm_handle_t third_handle;
+ int third_offset;
+ int third_size;
+ unsigned int third_tiled;
+
+ /* buffer object handles for the static buffers. May change
+ * over the lifetime of the client, though it doesn't in our current
+ * implementation.
+ */
+ unsigned int front_bo_handle;
+ unsigned int back_bo_handle;
+ unsigned int third_bo_handle;
+ unsigned int depth_bo_handle;
} drm_i915_sarea_t;
+/* Driver specific fence types and classes.
+ */
+
+/* The only fence class we support */
+#define DRM_I915_FENCE_CLASS_ACCEL 0
+/* Fence type that guarantees read-write flush */
+#define DRM_I915_FENCE_TYPE_RW 2
+/* MI_FLUSH programmed just before the fence */
+#define DRM_I915_FENCE_FLAG_FLUSHED 0x01000000
+
/* Flags for perf_boxes
*/
#define I915_BOX_RING_EMPTY 0x1
@@ -135,10 +175,30 @@ typedef struct _drm_i915_sarea {
#define DRM_I915_DESTROY_HEAP 0x0c
#define DRM_I915_SET_VBLANK_PIPE 0x0d
#define DRM_I915_GET_VBLANK_PIPE 0x0e
+#define DRM_I915_VBLANK_SWAP 0x0f
+#define DRM_I915_MMIO 0x10
+#define DRM_I915_HWS_ADDR 0x11
+#define DRM_I915_EXECBUFFER 0x12
+#define DRM_I915_GEM_INIT 0x13
+#define DRM_I915_GEM_EXECBUFFER 0x14
+#define DRM_I915_GEM_PIN 0x15
+#define DRM_I915_GEM_UNPIN 0x16
+#define DRM_I915_GEM_BUSY 0x17
+#define DRM_I915_GEM_THROTTLE 0x18
+#define DRM_I915_GEM_ENTERVT 0x19
+#define DRM_I915_GEM_LEAVEVT 0x1a
+#define DRM_I915_GEM_CREATE 0x1b
+#define DRM_I915_GEM_PREAD 0x1c
+#define DRM_I915_GEM_PWRITE 0x1d
+#define DRM_I915_GEM_MMAP 0x1e
+#define DRM_I915_GEM_SET_DOMAIN 0x1f
+#define DRM_I915_GEM_SW_FINISH 0x20
+#define DRM_I915_GEM_SET_TILING 0x21
+#define DRM_I915_GEM_GET_TILING 0x22
#define DRM_IOCTL_I915_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
#define DRM_IOCTL_I915_FLUSH DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
-#define DRM_IOCTL_I915_FLIP DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLIP)
+#define DRM_IOCTL_I915_FLIP DRM_IOW( DRM_COMMAND_BASE + DRM_I915_FLIP, drm_i915_flip_t)
#define DRM_IOCTL_I915_BATCHBUFFER DRM_IOW( DRM_COMMAND_BASE + DRM_I915_BATCHBUFFER, drm_i915_batchbuffer_t)
#define DRM_IOCTL_I915_IRQ_EMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_IRQ_EMIT, drm_i915_irq_emit_t)
#define DRM_IOCTL_I915_IRQ_WAIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_IRQ_WAIT, drm_i915_irq_wait_t)
@@ -151,18 +211,48 @@ typedef struct _drm_i915_sarea {
#define DRM_IOCTL_I915_DESTROY_HEAP DRM_IOW( DRM_COMMAND_BASE + DRM_I915_DESTROY_HEAP, drm_i915_mem_destroy_heap_t)
#define DRM_IOCTL_I915_SET_VBLANK_PIPE DRM_IOW( DRM_COMMAND_BASE + DRM_I915_SET_VBLANK_PIPE, drm_i915_vblank_pipe_t)
#define DRM_IOCTL_I915_GET_VBLANK_PIPE DRM_IOR( DRM_COMMAND_BASE + DRM_I915_GET_VBLANK_PIPE, drm_i915_vblank_pipe_t)
+#define DRM_IOCTL_I915_VBLANK_SWAP DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_VBLANK_SWAP, drm_i915_vblank_swap_t)
+#define DRM_IOCTL_I915_MMIO DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_MMIO, drm_i915_mmio)
+#define DRM_IOCTL_I915_EXECBUFFER DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_EXECBUFFER, struct drm_i915_execbuffer)
+#define DRM_IOCTL_I915_GEM_INIT DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_INIT, struct drm_i915_gem_init)
+#define DRM_IOCTL_I915_GEM_EXECBUFFER DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_EXECBUFFER, struct drm_i915_gem_execbuffer)
+#define DRM_IOCTL_I915_GEM_PIN DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_PIN, struct drm_i915_gem_pin)
+#define DRM_IOCTL_I915_GEM_UNPIN DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_UNPIN, struct drm_i915_gem_unpin)
+#define DRM_IOCTL_I915_GEM_BUSY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_BUSY, struct drm_i915_gem_busy)
+#define DRM_IOCTL_I915_GEM_THROTTLE DRM_IO ( DRM_COMMAND_BASE + DRM_I915_GEM_THROTTLE)
+#define DRM_IOCTL_I915_GEM_ENTERVT DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_ENTERVT)
+#define DRM_IOCTL_I915_GEM_LEAVEVT DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_LEAVEVT)
+#define DRM_IOCTL_I915_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_CREATE, struct drm_i915_gem_create)
+#define DRM_IOCTL_I915_GEM_PREAD DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_PREAD, struct drm_i915_gem_pread)
+#define DRM_IOCTL_I915_GEM_PWRITE DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_PWRITE, struct drm_i915_gem_pwrite)
+#define DRM_IOCTL_I915_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MMAP, struct drm_i915_gem_mmap)
+#define DRM_IOCTL_I915_GEM_SET_DOMAIN DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_SET_DOMAIN, struct drm_i915_gem_set_domain)
+#define DRM_IOCTL_I915_GEM_SW_FINISH DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_SW_FINISH, struct drm_i915_gem_sw_finish)
+#define DRM_IOCTL_I915_GEM_SET_TILING DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_SET_TILING, struct drm_i915_gem_set_tiling)
+#define DRM_IOCTL_I915_GEM_GET_TILING DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_GET_TILING, struct drm_i915_gem_get_tiling)
+/* Asynchronous page flipping:
+ */
+typedef struct drm_i915_flip {
+ /*
+ * This is really talking about planes, and we could rename it
+ * except for the fact that some of the duplicated i915_drm.h files
+ * out there check for HAVE_I915_FLIP and so might pick up this
+ * version.
+ */
+ int pipes;
+} drm_i915_flip_t;
/* Allow drivers to submit batchbuffers directly to hardware, relying
* on the security mechanisms provided by hardware.
*/
-typedef struct _drm_i915_batchbuffer {
+typedef struct drm_i915_batchbuffer {
int start; /* agp offset */
int used; /* nr bytes in use */
int DR1; /* hw flags for GFX_OP_DRAWRECT_INFO */
int DR4; /* window origin for GFX_OP_DRAWRECT_INFO */
int num_cliprects; /* mulitpass with multiple cliprects? */
- drm_clip_rect_t __user *cliprects; /* pointer to userspace cliprects */
+ struct drm_clip_rect __user *cliprects; /* pointer to userspace cliprects */
} drm_i915_batchbuffer_t;
/* As above, but pass a pointer to userspace buffer which can be
@@ -174,7 +264,7 @@ typedef struct _drm_i915_cmdbuffer {
int DR1; /* hw flags for GFX_OP_DRAWRECT_INFO */
int DR4; /* window origin for GFX_OP_DRAWRECT_INFO */
int num_cliprects; /* mulitpass with multiple cliprects? */
- drm_clip_rect_t __user *cliprects; /* pointer to userspace cliprects */
+ struct drm_clip_rect __user *cliprects; /* pointer to userspace cliprects */
} drm_i915_cmdbuffer_t;
/* Userspace can request & wait on irq's:
@@ -192,6 +282,8 @@ typedef struct drm_i915_irq_wait {
#define I915_PARAM_IRQ_ACTIVE 1
#define I915_PARAM_ALLOW_BATCHBUFFER 2
#define I915_PARAM_LAST_DISPATCH 3
+#define I915_PARAM_CHIPSET_ID 4
+#define I915_PARAM_HAS_GEM 5
typedef struct drm_i915_getparam {
int param;
@@ -235,7 +327,7 @@ typedef struct drm_i915_mem_init_heap {
* rotate):
*/
typedef struct drm_i915_mem_destroy_heap {
- int region;
+ int region;
} drm_i915_mem_destroy_heap_t;
/* Allow X server to configure which pipes to monitor for vblank signals
@@ -247,4 +339,384 @@ typedef struct drm_i915_vblank_pipe {
int pipe;
} drm_i915_vblank_pipe_t;
+/* Schedule buffer swap at given vertical blank:
+ */
+typedef struct drm_i915_vblank_swap {
+ drm_drawable_t drawable;
+ enum drm_vblank_seq_type seqtype;
+ unsigned int sequence;
+} drm_i915_vblank_swap_t;
+
+#define I915_MMIO_READ 0
+#define I915_MMIO_WRITE 1
+
+#define I915_MMIO_MAY_READ 0x1
+#define I915_MMIO_MAY_WRITE 0x2
+
+#define MMIO_REGS_IA_PRIMATIVES_COUNT 0
+#define MMIO_REGS_IA_VERTICES_COUNT 1
+#define MMIO_REGS_VS_INVOCATION_COUNT 2
+#define MMIO_REGS_GS_PRIMITIVES_COUNT 3
+#define MMIO_REGS_GS_INVOCATION_COUNT 4
+#define MMIO_REGS_CL_PRIMITIVES_COUNT 5
+#define MMIO_REGS_CL_INVOCATION_COUNT 6
+#define MMIO_REGS_PS_INVOCATION_COUNT 7
+#define MMIO_REGS_PS_DEPTH_COUNT 8
+
+typedef struct drm_i915_mmio_entry {
+ unsigned int flag;
+ unsigned int offset;
+ unsigned int size;
+} drm_i915_mmio_entry_t;
+
+typedef struct drm_i915_mmio {
+ unsigned int read_write:1;
+ unsigned int reg:31;
+ void __user *data;
+} drm_i915_mmio_t;
+
+typedef struct drm_i915_hws_addr {
+ uint64_t addr;
+} drm_i915_hws_addr_t;
+
+/*
+ * Relocation header is 4 uint32_ts
+ * 0 - 32 bit reloc count
+ * 1 - 32-bit relocation type
+ * 2-3 - 64-bit user buffer handle ptr for another list of relocs.
+ */
+#define I915_RELOC_HEADER 4
+
+/*
+ * type 0 relocation has 4-uint32_t stride
+ * 0 - offset into buffer
+ * 1 - delta to add in
+ * 2 - buffer handle
+ * 3 - reserved (for optimisations later).
+ */
+/*
+ * type 1 relocation has 4-uint32_t stride.
+ * Hangs off the first item in the op list.
+ * Performed after all valiations are done.
+ * Try to group relocs into the same relocatee together for
+ * performance reasons.
+ * 0 - offset into buffer
+ * 1 - delta to add in
+ * 2 - buffer index in op list.
+ * 3 - relocatee index in op list.
+ */
+#define I915_RELOC_TYPE_0 0
+#define I915_RELOC0_STRIDE 4
+#define I915_RELOC_TYPE_1 1
+#define I915_RELOC1_STRIDE 4
+
+
+struct drm_i915_op_arg {
+ uint64_t next;
+ uint64_t reloc_ptr;
+ int handled;
+ unsigned int pad64;
+ union {
+ struct drm_bo_op_req req;
+ struct drm_bo_arg_rep rep;
+ } d;
+
+};
+
+struct drm_i915_execbuffer {
+ uint64_t ops_list;
+ uint32_t num_buffers;
+ struct drm_i915_batchbuffer batch;
+ drm_context_t context; /* for lockless use in the future */
+ struct drm_fence_arg fence_arg;
+};
+
+struct drm_i915_gem_init {
+ /**
+ * Beginning offset in the GTT to be managed by the DRM memory
+ * manager.
+ */
+ uint64_t gtt_start;
+ /**
+ * Ending offset in the GTT to be managed by the DRM memory
+ * manager.
+ */
+ uint64_t gtt_end;
+};
+
+struct drm_i915_gem_create {
+ /**
+ * Requested size for the object.
+ *
+ * The (page-aligned) allocated size for the object will be returned.
+ */
+ uint64_t size;
+ /**
+ * Returned handle for the object.
+ *
+ * Object handles are nonzero.
+ */
+ uint32_t handle;
+ uint32_t pad;
+};
+
+struct drm_i915_gem_pread {
+ /** Handle for the object being read. */
+ uint32_t handle;
+ uint32_t pad;
+ /** Offset into the object to read from */
+ uint64_t offset;
+ /** Length of data to read */
+ uint64_t size;
+ /** Pointer to write the data into. */
+ uint64_t data_ptr; /* void *, but pointers are not 32/64 compatible */
+};
+
+struct drm_i915_gem_pwrite {
+ /** Handle for the object being written to. */
+ uint32_t handle;
+ uint32_t pad;
+ /** Offset into the object to write to */
+ uint64_t offset;
+ /** Length of data to write */
+ uint64_t size;
+ /** Pointer to read the data from. */
+ uint64_t data_ptr; /* void *, but pointers are not 32/64 compatible */
+};
+
+struct drm_i915_gem_mmap {
+ /** Handle for the object being mapped. */
+ uint32_t handle;
+ uint32_t pad;
+ /** Offset in the object to map. */
+ uint64_t offset;
+ /**
+ * Length of data to map.
+ *
+ * The value will be page-aligned.
+ */
+ uint64_t size;
+ /** Returned pointer the data was mapped at */
+ uint64_t addr_ptr; /* void *, but pointers are not 32/64 compatible */
+};
+
+struct drm_i915_gem_set_domain {
+ /** Handle for the object */
+ uint32_t handle;
+
+ /** New read domains */
+ uint32_t read_domains;
+
+ /** New write domain */
+ uint32_t write_domain;
+};
+
+struct drm_i915_gem_sw_finish {
+ /** Handle for the object */
+ uint32_t handle;
+};
+
+struct drm_i915_gem_relocation_entry {
+ /**
+ * Handle of the buffer being pointed to by this relocation entry.
+ *
+ * It's appealing to make this be an index into the mm_validate_entry
+ * list to refer to the buffer, but this allows the driver to create
+ * a relocation list for state buffers and not re-write it per
+ * exec using the buffer.
+ */
+ uint32_t target_handle;
+
+ /**
+ * Value to be added to the offset of the target buffer to make up
+ * the relocation entry.
+ */
+ uint32_t delta;
+
+ /** Offset in the buffer the relocation entry will be written into */
+ uint64_t offset;
+
+ /**
+ * Offset value of the target buffer that the relocation entry was last
+ * written as.
+ *
+ * If the buffer has the same offset as last time, we can skip syncing
+ * and writing the relocation. This value is written back out by
+ * the execbuffer ioctl when the relocation is written.
+ */
+ uint64_t presumed_offset;
+
+ /**
+ * Target memory domains read by this operation.
+ */
+ uint32_t read_domains;
+
+ /**
+ * Target memory domains written by this operation.
+ *
+ * Note that only one domain may be written by the whole
+ * execbuffer operation, so that where there are conflicts,
+ * the application will get -EINVAL back.
+ */
+ uint32_t write_domain;
+};
+
+/** @{
+ * Intel memory domains
+ *
+ * Most of these just align with the various caches in
+ * the system and are used to flush and invalidate as
+ * objects end up cached in different domains.
+ */
+/** CPU cache */
+#define I915_GEM_DOMAIN_CPU 0x00000001
+/** Render cache, used by 2D and 3D drawing */
+#define I915_GEM_DOMAIN_RENDER 0x00000002
+/** Sampler cache, used by texture engine */
+#define I915_GEM_DOMAIN_SAMPLER 0x00000004
+/** Command queue, used to load batch buffers */
+#define I915_GEM_DOMAIN_COMMAND 0x00000008
+/** Instruction cache, used by shader programs */
+#define I915_GEM_DOMAIN_INSTRUCTION 0x00000010
+/** Vertex address cache */
+#define I915_GEM_DOMAIN_VERTEX 0x00000020
+/** GTT domain - aperture and scanout */
+#define I915_GEM_DOMAIN_GTT 0x00000040
+/** @} */
+
+struct drm_i915_gem_exec_object {
+ /**
+ * User's handle for a buffer to be bound into the GTT for this
+ * operation.
+ */
+ uint32_t handle;
+
+ /** Number of relocations to be performed on this buffer */
+ uint32_t relocation_count;
+ /**
+ * Pointer to array of struct drm_i915_gem_relocation_entry containing
+ * the relocations to be performed in this buffer.
+ */
+ uint64_t relocs_ptr;
+
+ /** Required alignment in graphics aperture */
+ uint64_t alignment;
+
+ /**
+ * Returned value of the updated offset of the object, for future
+ * presumed_offset writes.
+ */
+ uint64_t offset;
+};
+
+struct drm_i915_gem_execbuffer {
+ /**
+ * List of buffers to be validated with their relocations to be
+ * performend on them.
+ *
+ * This is a pointer to an array of struct drm_i915_gem_validate_entry.
+ *
+ * These buffers must be listed in an order such that all relocations
+ * a buffer is performing refer to buffers that have already appeared
+ * in the validate list.
+ */
+ uint64_t buffers_ptr;
+ uint32_t buffer_count;
+
+ /** Offset in the batchbuffer to start execution from. */
+ uint32_t batch_start_offset;
+ /** Bytes used in batchbuffer from batch_start_offset */
+ uint32_t batch_len;
+ uint32_t DR1;
+ uint32_t DR4;
+ uint32_t num_cliprects;
+ uint64_t cliprects_ptr; /* struct drm_clip_rect *cliprects */
+};
+
+struct drm_i915_gem_pin {
+ /** Handle of the buffer to be pinned. */
+ uint32_t handle;
+ uint32_t pad;
+
+ /** alignment required within the aperture */
+ uint64_t alignment;
+
+ /** Returned GTT offset of the buffer. */
+ uint64_t offset;
+};
+
+struct drm_i915_gem_unpin {
+ /** Handle of the buffer to be unpinned. */
+ uint32_t handle;
+ uint32_t pad;
+};
+
+struct drm_i915_gem_busy {
+ /** Handle of the buffer to check for busy */
+ uint32_t handle;
+
+ /** Return busy status (1 if busy, 0 if idle) */
+ uint32_t busy;
+};
+
+#define I915_TILING_NONE 0
+#define I915_TILING_X 1
+#define I915_TILING_Y 2
+
+#define I915_BIT_6_SWIZZLE_NONE 0
+#define I915_BIT_6_SWIZZLE_9 1
+#define I915_BIT_6_SWIZZLE_9_10 2
+#define I915_BIT_6_SWIZZLE_9_11 3
+#define I915_BIT_6_SWIZZLE_9_10_11 4
+/* Not seen by userland */
+#define I915_BIT_6_SWIZZLE_UNKNOWN 5
+
+struct drm_i915_gem_set_tiling {
+ /** Handle of the buffer to have its tiling state updated */
+ uint32_t handle;
+
+ /**
+ * Tiling mode for the object (I915_TILING_NONE, I915_TILING_X,
+ * I915_TILING_Y).
+ *
+ * This value is to be set on request, and will be updated by the
+ * kernel on successful return with the actual chosen tiling layout.
+ *
+ * The tiling mode may be demoted to I915_TILING_NONE when the system
+ * has bit 6 swizzling that can't be managed correctly by GEM.
+ *
+ * Buffer contents become undefined when changing tiling_mode.
+ */
+ uint32_t tiling_mode;
+
+ /**
+ * Stride in bytes for the object when in I915_TILING_X or
+ * I915_TILING_Y.
+ */
+ uint32_t stride;
+
+ /**
+ * Returned address bit 6 swizzling required for CPU access through
+ * mmap mapping.
+ */
+ uint32_t swizzle_mode;
+};
+
+struct drm_i915_gem_get_tiling {
+ /** Handle of the buffer to get tiling state for. */
+ uint32_t handle;
+
+ /**
+ * Current tiling mode for the object (I915_TILING_NONE, I915_TILING_X,
+ * I915_TILING_Y).
+ */
+ uint32_t tiling_mode;
+
+ /**
+ * Returned address bit 6 swizzling required for CPU access through
+ * mmap mapping.
+ */
+ uint32_t swizzle_mode;
+};
+
#endif /* _I915_DRM_H_ */