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path: root/drivers/gpu/drm/i915/intel_ringbuffer.h
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.h')
-rw-r--r--drivers/gpu/drm/i915/intel_ringbuffer.h272
1 files changed, 0 insertions, 272 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
deleted file mode 100644
index 799f04c9da45..000000000000
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ /dev/null
@@ -1,272 +0,0 @@
-#ifndef _INTEL_RINGBUFFER_H_
-#define _INTEL_RINGBUFFER_H_
-
-/*
- * Gen2 BSpec "1. Programming Environment" / 1.4.4.6 "Ring Buffer Use"
- * Gen3 BSpec "vol1c Memory Interface Functions" / 2.3.4.5 "Ring Buffer Use"
- * Gen4+ BSpec "vol1c Memory Interface and Command Stream" / 5.3.4.5 "Ring Buffer Use"
- *
- * "If the Ring Buffer Head Pointer and the Tail Pointer are on the same
- * cacheline, the Head Pointer must not be greater than the Tail
- * Pointer."
- */
-#define I915_RING_FREE_SPACE 64
-
-struct intel_hw_status_page {
- u32 *page_addr;
- unsigned int gfx_addr;
- struct drm_i915_gem_object *obj;
-};
-
-#define I915_READ_TAIL(ring) I915_READ(RING_TAIL((ring)->mmio_base))
-#define I915_WRITE_TAIL(ring, val) I915_WRITE(RING_TAIL((ring)->mmio_base), val)
-
-#define I915_READ_START(ring) I915_READ(RING_START((ring)->mmio_base))
-#define I915_WRITE_START(ring, val) I915_WRITE(RING_START((ring)->mmio_base), val)
-
-#define I915_READ_HEAD(ring) I915_READ(RING_HEAD((ring)->mmio_base))
-#define I915_WRITE_HEAD(ring, val) I915_WRITE(RING_HEAD((ring)->mmio_base), val)
-
-#define I915_READ_CTL(ring) I915_READ(RING_CTL((ring)->mmio_base))
-#define I915_WRITE_CTL(ring, val) I915_WRITE(RING_CTL((ring)->mmio_base), val)
-
-#define I915_READ_IMR(ring) I915_READ(RING_IMR((ring)->mmio_base))
-#define I915_WRITE_IMR(ring, val) I915_WRITE(RING_IMR((ring)->mmio_base), val)
-
-#define I915_READ_NOPID(ring) I915_READ(RING_NOPID((ring)->mmio_base))
-#define I915_READ_SYNC_0(ring) I915_READ(RING_SYNC_0((ring)->mmio_base))
-#define I915_READ_SYNC_1(ring) I915_READ(RING_SYNC_1((ring)->mmio_base))
-
-enum intel_ring_hangcheck_action { wait, active, kick, hung };
-
-struct intel_ring_hangcheck {
- bool deadlock;
- u32 seqno;
- u32 acthd;
- int score;
- enum intel_ring_hangcheck_action action;
-};
-
-struct intel_ring_buffer {
- const char *name;
- enum intel_ring_id {
- RCS = 0x0,
- VCS,
- BCS,
- VECS,
- } id;
-#define I915_NUM_RINGS 4
- u32 mmio_base;
- void __iomem *virtual_start;
- struct drm_device *dev;
- struct drm_i915_gem_object *obj;
-
- u32 head;
- u32 tail;
- int space;
- int size;
- int effective_size;
- struct intel_hw_status_page status_page;
-
- /** We track the position of the requests in the ring buffer, and
- * when each is retired we increment last_retired_head as the GPU
- * must have finished processing the request and so we know we
- * can advance the ringbuffer up to that position.
- *
- * last_retired_head is set to -1 after the value is consumed so
- * we can detect new retirements.
- */
- u32 last_retired_head;
-
- struct {
- u32 gt; /* protected by dev_priv->irq_lock */
- u32 pm; /* protected by dev_priv->rps.lock (sucks) */
- } irq_refcount;
- u32 irq_enable_mask; /* bitmask to enable ring interrupt */
- u32 trace_irq_seqno;
- u32 sync_seqno[I915_NUM_RINGS-1];
- bool __must_check (*irq_get)(struct intel_ring_buffer *ring);
- void (*irq_put)(struct intel_ring_buffer *ring);
-
- int (*init)(struct intel_ring_buffer *ring);
-
- void (*write_tail)(struct intel_ring_buffer *ring,
- u32 value);
- int __must_check (*flush)(struct intel_ring_buffer *ring,
- u32 invalidate_domains,
- u32 flush_domains);
- int (*add_request)(struct intel_ring_buffer *ring);
- /* Some chipsets are not quite as coherent as advertised and need
- * an expensive kick to force a true read of the up-to-date seqno.
- * However, the up-to-date seqno is not always required and the last
- * seen value is good enough. Note that the seqno will always be
- * monotonic, even if not coherent.
- */
- u32 (*get_seqno)(struct intel_ring_buffer *ring,
- bool lazy_coherency);
- void (*set_seqno)(struct intel_ring_buffer *ring,
- u32 seqno);
- int (*dispatch_execbuffer)(struct intel_ring_buffer *ring,
- u32 offset, u32 length,
- unsigned flags);
-#define I915_DISPATCH_SECURE 0x1
-#define I915_DISPATCH_PINNED 0x2
- void (*cleanup)(struct intel_ring_buffer *ring);
- int (*sync_to)(struct intel_ring_buffer *ring,
- struct intel_ring_buffer *to,
- u32 seqno);
-
- /* our mbox written by others */
- u32 semaphore_register[I915_NUM_RINGS];
- /* mboxes this ring signals to */
- u32 signal_mbox[I915_NUM_RINGS];
-
- /**
- * List of objects currently involved in rendering from the
- * ringbuffer.
- *
- * Includes buffers having the contents of their GPU caches
- * flushed, not necessarily primitives. last_rendering_seqno
- * represents when the rendering involved will be completed.
- *
- * A reference is held on the buffer while on this list.
- */
- struct list_head active_list;
-
- /**
- * List of breadcrumbs associated with GPU requests currently
- * outstanding.
- */
- struct list_head request_list;
-
- /**
- * Do we have some not yet emitted requests outstanding?
- */
- u32 outstanding_lazy_request;
- bool gpu_caches_dirty;
- bool fbc_dirty;
-
- wait_queue_head_t irq_queue;
-
- /**
- * Do an explicit TLB flush before MI_SET_CONTEXT
- */
- bool itlb_before_ctx_switch;
- struct i915_hw_context *default_context;
- struct i915_hw_context *last_context;
-
- struct intel_ring_hangcheck hangcheck;
-
- void *private;
-};
-
-static inline bool
-intel_ring_initialized(struct intel_ring_buffer *ring)
-{
- return ring->obj != NULL;
-}
-
-static inline unsigned
-intel_ring_flag(struct intel_ring_buffer *ring)
-{
- return 1 << ring->id;
-}
-
-static inline u32
-intel_ring_sync_index(struct intel_ring_buffer *ring,
- struct intel_ring_buffer *other)
-{
- int idx;
-
- /*
- * cs -> 0 = vcs, 1 = bcs
- * vcs -> 0 = bcs, 1 = cs,
- * bcs -> 0 = cs, 1 = vcs.
- */
-
- idx = (other - ring) - 1;
- if (idx < 0)
- idx += I915_NUM_RINGS;
-
- return idx;
-}
-
-static inline u32
-intel_read_status_page(struct intel_ring_buffer *ring,
- int reg)
-{
- /* Ensure that the compiler doesn't optimize away the load. */
- barrier();
- return ring->status_page.page_addr[reg];
-}
-
-static inline void
-intel_write_status_page(struct intel_ring_buffer *ring,
- int reg, u32 value)
-{
- ring->status_page.page_addr[reg] = value;
-}
-
-/**
- * Reads a dword out of the status page, which is written to from the command
- * queue by automatic updates, MI_REPORT_HEAD, MI_STORE_DATA_INDEX, or
- * MI_STORE_DATA_IMM.
- *
- * The following dwords have a reserved meaning:
- * 0x00: ISR copy, updated when an ISR bit not set in the HWSTAM changes.
- * 0x04: ring 0 head pointer
- * 0x05: ring 1 head pointer (915-class)
- * 0x06: ring 2 head pointer (915-class)
- * 0x10-0x1b: Context status DWords (GM45)
- * 0x1f: Last written status offset. (GM45)
- *
- * The area from dword 0x20 to 0x3ff is available for driver usage.
- */
-#define I915_GEM_HWS_INDEX 0x20
-#define I915_GEM_HWS_SCRATCH_INDEX 0x30
-#define I915_GEM_HWS_SCRATCH_ADDR (I915_GEM_HWS_SCRATCH_INDEX << MI_STORE_DWORD_INDEX_SHIFT)
-
-void intel_cleanup_ring_buffer(struct intel_ring_buffer *ring);
-
-int __must_check intel_ring_begin(struct intel_ring_buffer *ring, int n);
-static inline void intel_ring_emit(struct intel_ring_buffer *ring,
- u32 data)
-{
- iowrite32(data, ring->virtual_start + ring->tail);
- ring->tail += 4;
-}
-void intel_ring_advance(struct intel_ring_buffer *ring);
-int __must_check intel_ring_idle(struct intel_ring_buffer *ring);
-void intel_ring_init_seqno(struct intel_ring_buffer *ring, u32 seqno);
-int intel_ring_flush_all_caches(struct intel_ring_buffer *ring);
-int intel_ring_invalidate_all_caches(struct intel_ring_buffer *ring);
-
-int intel_init_render_ring_buffer(struct drm_device *dev);
-int intel_init_bsd_ring_buffer(struct drm_device *dev);
-int intel_init_blt_ring_buffer(struct drm_device *dev);
-int intel_init_vebox_ring_buffer(struct drm_device *dev);
-
-u32 intel_ring_get_active_head(struct intel_ring_buffer *ring);
-void intel_ring_setup_status_page(struct intel_ring_buffer *ring);
-
-static inline u32 intel_ring_get_tail(struct intel_ring_buffer *ring)
-{
- return ring->tail;
-}
-
-static inline u32 intel_ring_get_seqno(struct intel_ring_buffer *ring)
-{
- BUG_ON(ring->outstanding_lazy_request == 0);
- return ring->outstanding_lazy_request;
-}
-
-static inline void i915_trace_irq_get(struct intel_ring_buffer *ring, u32 seqno)
-{
- if (ring->trace_irq_seqno == 0 && ring->irq_get(ring))
- ring->trace_irq_seqno = seqno;
-}
-
-/* DRI warts */
-int intel_render_ring_init_dri(struct drm_device *dev, u64 start, u32 size);
-
-#endif /* _INTEL_RINGBUFFER_H_ */