diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_lrc.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lrc.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_lrc.h b/drivers/gpu/drm/i915/intel_lrc.h new file mode 100644 index 000000000..adb731e49 --- /dev/null +++ b/drivers/gpu/drm/i915/intel_lrc.h @@ -0,0 +1,93 @@ +/* + * Copyright © 2014 Intel Corporation + * + * 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 (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 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. + */ + +#ifndef _INTEL_LRC_H_ +#define _INTEL_LRC_H_ + +#define GEN8_LR_CONTEXT_ALIGN 4096 + +/* Execlists regs */ +#define RING_ELSP(ring) ((ring)->mmio_base+0x230) +#define RING_EXECLIST_STATUS(ring) ((ring)->mmio_base+0x234) +#define RING_CONTEXT_CONTROL(ring) ((ring)->mmio_base+0x244) +#define CTX_CTRL_INHIBIT_SYN_CTX_SWITCH (1 << 3) +#define CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT (1 << 0) +#define RING_CONTEXT_STATUS_BUF(ring) ((ring)->mmio_base+0x370) +#define RING_CONTEXT_STATUS_PTR(ring) ((ring)->mmio_base+0x3a0) + +/* Logical Rings */ +void intel_logical_ring_stop(struct intel_engine_cs *ring); +void intel_logical_ring_cleanup(struct intel_engine_cs *ring); +int intel_logical_rings_init(struct drm_device *dev); + +int logical_ring_flush_all_caches(struct intel_ringbuffer *ringbuf, + struct intel_context *ctx); +/** + * intel_logical_ring_advance() - advance the ringbuffer tail + * @ringbuf: Ringbuffer to advance. + * + * The tail is only updated in our logical ringbuffer struct. + */ +static inline void intel_logical_ring_advance(struct intel_ringbuffer *ringbuf) +{ + ringbuf->tail &= ringbuf->size - 1; +} +/** + * intel_logical_ring_emit() - write a DWORD to the ringbuffer. + * @ringbuf: Ringbuffer to write to. + * @data: DWORD to write. + */ +static inline void intel_logical_ring_emit(struct intel_ringbuffer *ringbuf, + u32 data) +{ + iowrite32(data, ringbuf->virtual_start + ringbuf->tail); + ringbuf->tail += 4; +} +int intel_logical_ring_begin(struct intel_ringbuffer *ringbuf, + struct intel_context *ctx, + int num_dwords); + +/* Logical Ring Contexts */ +void intel_lr_context_free(struct intel_context *ctx); +int intel_lr_context_deferred_create(struct intel_context *ctx, + struct intel_engine_cs *ring); +void intel_lr_context_unpin(struct intel_engine_cs *ring, + struct intel_context *ctx); +void intel_lr_context_reset(struct drm_device *dev, + struct intel_context *ctx); + +/* Execlists */ +int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists); +int intel_execlists_submission(struct drm_device *dev, struct drm_file *file, + struct intel_engine_cs *ring, + struct intel_context *ctx, + struct drm_i915_gem_execbuffer2 *args, + struct list_head *vmas, + struct drm_i915_gem_object *batch_obj, + u64 exec_start, u32 dispatch_flags); +u32 intel_execlists_ctx_id(struct drm_i915_gem_object *ctx_obj); + +void intel_lrc_irq_handler(struct intel_engine_cs *ring); +void intel_execlists_retire_requests(struct intel_engine_cs *ring); + +#endif /* _INTEL_LRC_H_ */ |