Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 293 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
new file mode 100644
index 000000000..d242b9a51
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -0,0 +1,293 @@
+/*
+ * Copyright 2016 Advanced Micro Devices, 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Authors: Christian König
+ */
+#ifndef __AMDGPU_RING_H__
+#define __AMDGPU_RING_H__
+
+#include <drm/amdgpu_drm.h>
+#include <drm/gpu_scheduler.h>
+#include <drm/drm_print.h>
+
+/* max number of rings */
+#define AMDGPU_MAX_RINGS		21
+#define AMDGPU_MAX_GFX_RINGS		1
+#define AMDGPU_MAX_COMPUTE_RINGS	8
+#define AMDGPU_MAX_VCE_RINGS		3
+#define AMDGPU_MAX_UVD_ENC_RINGS	2
+
+/* some special values for the owner field */
+#define AMDGPU_FENCE_OWNER_UNDEFINED	((void *)0ul)
+#define AMDGPU_FENCE_OWNER_VM		((void *)1ul)
+#define AMDGPU_FENCE_OWNER_KFD		((void *)2ul)
+
+#define AMDGPU_FENCE_FLAG_64BIT         (1 << 0)
+#define AMDGPU_FENCE_FLAG_INT           (1 << 1)
+#define AMDGPU_FENCE_FLAG_TC_WB_ONLY    (1 << 2)
+
+#define to_amdgpu_ring(s) container_of((s), struct amdgpu_ring, sched)
+
+enum amdgpu_ring_type {
+	AMDGPU_RING_TYPE_GFX,
+	AMDGPU_RING_TYPE_COMPUTE,
+	AMDGPU_RING_TYPE_SDMA,
+	AMDGPU_RING_TYPE_UVD,
+	AMDGPU_RING_TYPE_VCE,
+	AMDGPU_RING_TYPE_KIQ,
+	AMDGPU_RING_TYPE_UVD_ENC,
+	AMDGPU_RING_TYPE_VCN_DEC,
+	AMDGPU_RING_TYPE_VCN_ENC,
+	AMDGPU_RING_TYPE_VCN_JPEG
+};
+
+struct amdgpu_device;
+struct amdgpu_ring;
+struct amdgpu_ib;
+struct amdgpu_cs_parser;
+struct amdgpu_job;
+
+/*
+ * Fences.
+ */
+struct amdgpu_fence_driver {
+	uint64_t			gpu_addr;
+	volatile uint32_t		*cpu_addr;
+	/* sync_seq is protected by ring emission lock */
+	uint32_t			sync_seq;
+	atomic_t			last_seq;
+	bool				initialized;
+	struct amdgpu_irq_src		*irq_src;
+	unsigned			irq_type;
+	struct timer_list		fallback_timer;
+	unsigned			num_fences_mask;
+	spinlock_t			lock;
+	struct dma_fence		**fences;
+};
+
+int amdgpu_fence_driver_init(struct amdgpu_device *adev);
+void amdgpu_fence_driver_fini(struct amdgpu_device *adev);
+void amdgpu_fence_driver_force_completion(struct amdgpu_ring *ring);
+
+int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring,
+				  unsigned num_hw_submission);
+int amdgpu_fence_driver_start_ring(struct amdgpu_ring *ring,
+				   struct amdgpu_irq_src *irq_src,
+				   unsigned irq_type);
+void amdgpu_fence_driver_suspend(struct amdgpu_device *adev);
+void amdgpu_fence_driver_resume(struct amdgpu_device *adev);
+int amdgpu_fence_emit(struct amdgpu_ring *ring, struct dma_fence **fence,
+		      unsigned flags);
+int amdgpu_fence_emit_polling(struct amdgpu_ring *ring, uint32_t *s);
+void amdgpu_fence_process(struct amdgpu_ring *ring);
+int amdgpu_fence_wait_empty(struct amdgpu_ring *ring);
+signed long amdgpu_fence_wait_polling(struct amdgpu_ring *ring,
+				      uint32_t wait_seq,
+				      signed long timeout);
+unsigned amdgpu_fence_count_emitted(struct amdgpu_ring *ring);
+
+/*
+ * Rings.
+ */
+
+/* provided by hw blocks that expose a ring buffer for commands */
+struct amdgpu_ring_funcs {
+	enum amdgpu_ring_type	type;
+	uint32_t		align_mask;
+	u32			nop;
+	bool			support_64bit_ptrs;
+	unsigned		vmhub;
+	unsigned		extra_dw;
+
+	/* ring read/write ptr handling */
+	u64 (*get_rptr)(struct amdgpu_ring *ring);
+	u64 (*get_wptr)(struct amdgpu_ring *ring);
+	void (*set_wptr)(struct amdgpu_ring *ring);
+	/* validating and patching of IBs */
+	int (*parse_cs)(struct amdgpu_cs_parser *p, uint32_t ib_idx);
+	int (*patch_cs_in_place)(struct amdgpu_cs_parser *p, uint32_t ib_idx);
+	/* constants to calculate how many DW are needed for an emit */
+	unsigned emit_frame_size;
+	unsigned emit_ib_size;
+	/* command emit functions */
+	void (*emit_ib)(struct amdgpu_ring *ring,
+			struct amdgpu_ib *ib,
+			unsigned vmid, bool ctx_switch);
+	void (*emit_fence)(struct amdgpu_ring *ring, uint64_t addr,
+			   uint64_t seq, unsigned flags);
+	void (*emit_pipeline_sync)(struct amdgpu_ring *ring);
+	void (*emit_vm_flush)(struct amdgpu_ring *ring, unsigned vmid,
+			      uint64_t pd_addr);
+	void (*emit_hdp_flush)(struct amdgpu_ring *ring);
+	void (*emit_gds_switch)(struct amdgpu_ring *ring, uint32_t vmid,
+				uint32_t gds_base, uint32_t gds_size,
+				uint32_t gws_base, uint32_t gws_size,
+				uint32_t oa_base, uint32_t oa_size);
+	/* testing functions */
+	int (*test_ring)(struct amdgpu_ring *ring);
+	int (*test_ib)(struct amdgpu_ring *ring, long timeout);
+	/* insert NOP packets */
+	void (*insert_nop)(struct amdgpu_ring *ring, uint32_t count);
+	void (*insert_start)(struct amdgpu_ring *ring);
+	void (*insert_end)(struct amdgpu_ring *ring);
+	/* pad the indirect buffer to the necessary number of dw */
+	void (*pad_ib)(struct amdgpu_ring *ring, struct amdgpu_ib *ib);
+	unsigned (*init_cond_exec)(struct amdgpu_ring *ring);
+	void (*patch_cond_exec)(struct amdgpu_ring *ring, unsigned offset);
+	/* note usage for clock and power gating */
+	void (*begin_use)(struct amdgpu_ring *ring);
+	void (*end_use)(struct amdgpu_ring *ring);
+	void (*emit_switch_buffer) (struct amdgpu_ring *ring);
+	void (*emit_cntxcntl) (struct amdgpu_ring *ring, uint32_t flags);
+	void (*emit_rreg)(struct amdgpu_ring *ring, uint32_t reg);
+	void (*emit_wreg)(struct amdgpu_ring *ring, uint32_t reg, uint32_t val);
+	void (*emit_reg_wait)(struct amdgpu_ring *ring, uint32_t reg,
+			      uint32_t val, uint32_t mask);
+	void (*emit_reg_write_reg_wait)(struct amdgpu_ring *ring,
+					uint32_t reg0, uint32_t reg1,
+					uint32_t ref, uint32_t mask);
+	void (*emit_tmz)(struct amdgpu_ring *ring, bool start);
+	/* priority functions */
+	void (*set_priority) (struct amdgpu_ring *ring,
+			      enum drm_sched_priority priority);
+};
+
+struct amdgpu_ring {
+	struct amdgpu_device		*adev;
+	const struct amdgpu_ring_funcs	*funcs;
+	struct amdgpu_fence_driver	fence_drv;
+	struct drm_gpu_scheduler	sched;
+	struct list_head		lru_list;
+
+	struct amdgpu_bo	*ring_obj;
+	volatile uint32_t	*ring;
+	unsigned		rptr_offs;
+	u64			wptr;
+	u64			wptr_old;
+	unsigned		ring_size;
+	unsigned		max_dw;
+	int			count_dw;
+	uint64_t		gpu_addr;
+	uint64_t		ptr_mask;
+	uint32_t		buf_mask;
+	bool			ready;
+	u32			idx;
+	u32			me;
+	u32			pipe;
+	u32			queue;
+	struct amdgpu_bo	*mqd_obj;
+	uint64_t                mqd_gpu_addr;
+	void                    *mqd_ptr;
+	uint64_t                eop_gpu_addr;
+	u32			doorbell_index;
+	bool			use_doorbell;
+	bool			use_pollmem;
+	unsigned		wptr_offs;
+	unsigned		fence_offs;
+	uint64_t		current_ctx;
+	char			name[16];
+	unsigned		cond_exe_offs;
+	u64			cond_exe_gpu_addr;
+	volatile u32		*cond_exe_cpu_addr;
+	unsigned		vm_inv_eng;
+	struct dma_fence	*vmid_wait;
+	bool			has_compute_vm_bug;
+
+	atomic_t		num_jobs[DRM_SCHED_PRIORITY_MAX];
+	struct mutex		priority_mutex;
+	/* protected by priority_mutex */
+	int			priority;
+
+#if defined(CONFIG_DEBUG_FS)
+	struct dentry *ent;
+#endif
+};
+
+int amdgpu_ring_alloc(struct amdgpu_ring *ring, unsigned ndw);
+void amdgpu_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count);
+void amdgpu_ring_generic_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib);
+void amdgpu_ring_commit(struct amdgpu_ring *ring);
+void amdgpu_ring_undo(struct amdgpu_ring *ring);
+void amdgpu_ring_priority_get(struct amdgpu_ring *ring,
+			      enum drm_sched_priority priority);
+void amdgpu_ring_priority_put(struct amdgpu_ring *ring,
+			      enum drm_sched_priority priority);
+int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
+		     unsigned ring_size, struct amdgpu_irq_src *irq_src,
+		     unsigned irq_type);
+void amdgpu_ring_fini(struct amdgpu_ring *ring);
+int amdgpu_ring_lru_get(struct amdgpu_device *adev, int type,
+			int *blacklist, int num_blacklist,
+			bool lru_pipe_order, struct amdgpu_ring **ring);
+void amdgpu_ring_lru_touch(struct amdgpu_device *adev, struct amdgpu_ring *ring);
+void amdgpu_ring_emit_reg_write_reg_wait_helper(struct amdgpu_ring *ring,
+						uint32_t reg0, uint32_t val0,
+						uint32_t reg1, uint32_t val1);
+
+static inline void amdgpu_ring_clear_ring(struct amdgpu_ring *ring)
+{
+	int i = 0;
+	while (i <= ring->buf_mask)
+		ring->ring[i++] = ring->funcs->nop;
+
+}
+
+static inline void amdgpu_ring_write(struct amdgpu_ring *ring, uint32_t v)
+{
+	if (ring->count_dw <= 0)
+		DRM_ERROR("amdgpu: writing more dwords to the ring than expected!\n");
+	ring->ring[ring->wptr++ & ring->buf_mask] = v;
+	ring->wptr &= ring->ptr_mask;
+	ring->count_dw--;
+}
+
+static inline void amdgpu_ring_write_multiple(struct amdgpu_ring *ring,
+					      void *src, int count_dw)
+{
+	unsigned occupied, chunk1, chunk2;
+	void *dst;
+
+	if (unlikely(ring->count_dw < count_dw))
+		DRM_ERROR("amdgpu: writing more dwords to the ring than expected!\n");
+
+	occupied = ring->wptr & ring->buf_mask;
+	dst = (void *)&ring->ring[occupied];
+	chunk1 = ring->buf_mask + 1 - occupied;
+	chunk1 = (chunk1 >= count_dw) ? count_dw: chunk1;
+	chunk2 = count_dw - chunk1;
+	chunk1 <<= 2;
+	chunk2 <<= 2;
+
+	if (chunk1)
+		memcpy(dst, src, chunk1);
+
+	if (chunk2) {
+		src += chunk1;
+		dst = (void *)ring->ring;
+		memcpy(dst, src, chunk2);
+	}
+
+	ring->wptr += count_dw;
+	ring->wptr &= ring->ptr_mask;
+	ring->count_dw -= count_dw;
+}
+
+#endif