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/Linux-v5.10/include/linux/soc/ti/
Dk3-ringacc.h3 * K3 Ring Accelerator (RA) subsystem interface
18 * RA ring operational modes
20 * @K3_RINGACC_RING_MODE_RING: Exposed Ring mode for SW direct access
43 * RA ring element's sizes in bytes.
60 * enum k3_ring_cfg - RA ring configuration structure
62 * @size: Ring size, number of elements
63 * @elm_size: Ring element size
64 * @mode: Ring operational mode
65 * @flags: Ring configuration flags. Possible values:
66 * @K3_RINGACC_RING_SHARED: when set allows to request the same ring
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/Linux-v5.10/drivers/gpu/drm/amd/amdgpu/
Damdgpu_ring.c40 * Most engines on the GPU are fed via ring buffers. Ring
46 * pointers are equal, the ring is idle. When the host
47 * writes commands to the ring buffer, it increments the
53 * amdgpu_ring_alloc - allocate space on the ring buffer
56 * @ring: amdgpu_ring structure holding ring information
57 * @ndw: number of dwords to allocate in the ring buffer
59 * Allocate @ndw dwords in the ring buffer (all asics).
62 int amdgpu_ring_alloc(struct amdgpu_ring *ring, unsigned ndw) in amdgpu_ring_alloc() argument
66 ndw = (ndw + ring->funcs->align_mask) & ~ring->funcs->align_mask; in amdgpu_ring_alloc()
71 if (WARN_ON_ONCE(ndw > ring->max_dw)) in amdgpu_ring_alloc()
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Djpeg_v1_0.c36 static void jpeg_v1_0_ring_begin_use(struct amdgpu_ring *ring);
38 static void jpeg_v1_0_decode_ring_patch_wreg(struct amdgpu_ring *ring, uint32_t *ptr, uint32_t reg_… in jpeg_v1_0_decode_ring_patch_wreg() argument
40 struct amdgpu_device *adev = ring->adev; in jpeg_v1_0_decode_ring_patch_wreg()
41 …ring->ring[(*ptr)++] = PACKETJ(SOC15_REG_OFFSET(JPEG, 0, mmUVD_JRBC_EXTERNAL_REG_BASE), 0, 0, PACK… in jpeg_v1_0_decode_ring_patch_wreg()
44 ring->ring[(*ptr)++] = 0; in jpeg_v1_0_decode_ring_patch_wreg()
45 ring->ring[(*ptr)++] = PACKETJ((reg_offset >> 2), 0, 0, PACKETJ_TYPE0); in jpeg_v1_0_decode_ring_patch_wreg()
47 ring->ring[(*ptr)++] = reg_offset; in jpeg_v1_0_decode_ring_patch_wreg()
48 ring->ring[(*ptr)++] = PACKETJ(0, 0, 0, PACKETJ_TYPE0); in jpeg_v1_0_decode_ring_patch_wreg()
50 ring->ring[(*ptr)++] = val; in jpeg_v1_0_decode_ring_patch_wreg()
53 static void jpeg_v1_0_decode_ring_set_patch_ring(struct amdgpu_ring *ring, uint32_t ptr) in jpeg_v1_0_decode_ring_set_patch_ring() argument
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Damdgpu_fence.c49 * are no longer in use by the associated ring on the GPU and
57 struct amdgpu_ring *ring; member
94 * @ring: ring the fence is associated with
99 static void amdgpu_fence_write(struct amdgpu_ring *ring, u32 seq) in amdgpu_fence_write() argument
101 struct amdgpu_fence_driver *drv = &ring->fence_drv; in amdgpu_fence_write()
110 * @ring: ring the fence is associated with
115 static u32 amdgpu_fence_read(struct amdgpu_ring *ring) in amdgpu_fence_read() argument
117 struct amdgpu_fence_driver *drv = &ring->fence_drv; in amdgpu_fence_read()
129 * amdgpu_fence_emit - emit a fence on the requested ring
131 * @ring: ring the fence is associated with
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Damdgpu_ring.h74 /* Direct submission to the ring buffer during init and reset. */
97 /* sync_seq is protected by ring emission lock */
111 void amdgpu_fence_driver_force_completion(struct amdgpu_ring *ring);
113 int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring,
115 int amdgpu_fence_driver_start_ring(struct amdgpu_ring *ring,
120 int amdgpu_fence_emit(struct amdgpu_ring *ring, struct dma_fence **fence,
122 int amdgpu_fence_emit_polling(struct amdgpu_ring *ring, uint32_t *s,
124 bool amdgpu_fence_process(struct amdgpu_ring *ring);
125 int amdgpu_fence_wait_empty(struct amdgpu_ring *ring);
126 signed long amdgpu_fence_wait_polling(struct amdgpu_ring *ring,
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Djpeg_v2_0.c65 * Set ring and irq function pointers
89 struct amdgpu_ring *ring; in jpeg_v2_0_sw_init() local
106 ring = &adev->jpeg.inst->ring_dec; in jpeg_v2_0_sw_init()
107 ring->use_doorbell = true; in jpeg_v2_0_sw_init()
108 ring->doorbell_index = (adev->doorbell_index.vcn.vcn_ring0_1 << 1) + 1; in jpeg_v2_0_sw_init()
109 sprintf(ring->name, "jpeg_dec"); in jpeg_v2_0_sw_init()
110 r = amdgpu_ring_init(adev, ring, 512, &adev->jpeg.inst->irq, in jpeg_v2_0_sw_init()
151 struct amdgpu_ring *ring = &adev->jpeg.inst->ring_dec; in jpeg_v2_0_hw_init() local
154 adev->nbio.funcs->vcn_doorbell_range(adev, ring->use_doorbell, in jpeg_v2_0_hw_init()
157 r = amdgpu_ring_test_helper(ring); in jpeg_v2_0_hw_init()
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/Linux-v5.10/drivers/gpu/drm/radeon/
Dradeon_ring.c38 * Most engines on the GPU are fed via ring buffers. Ring
44 * pointers are equal, the ring is idle. When the host
45 * writes commands to the ring buffer, it increments the
49 static int radeon_debugfs_ring_init(struct radeon_device *rdev, struct radeon_ring *ring);
52 * radeon_ring_supports_scratch_reg - check if the ring supports
56 * @ring: radeon_ring structure holding ring information
58 * Check if a specific ring supports writing to scratch registers (all asics).
59 * Returns true if the ring supports writing to scratch regs, false if not.
62 struct radeon_ring *ring) in radeon_ring_supports_scratch_reg() argument
64 switch (ring->idx) { in radeon_ring_supports_scratch_reg()
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Dr600_dma.c35 * to the 3D engine (ring buffer, IBs, etc.), but the
47 * @ring: radeon ring pointer
52 struct radeon_ring *ring) in r600_dma_get_rptr() argument
57 rptr = rdev->wb.wb[ring->rptr_offs/4]; in r600_dma_get_rptr()
68 * @ring: radeon ring pointer
73 struct radeon_ring *ring) in r600_dma_get_wptr() argument
82 * @ring: radeon ring pointer
87 struct radeon_ring *ring) in r600_dma_set_wptr() argument
89 WREG32(DMA_RB_WPTR, (ring->wptr << 2) & 0x3fffc); in r600_dma_set_wptr()
109 rdev->ring[R600_RING_TYPE_DMA_INDEX].ready = false; in r600_dma_stop()
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Dcik_sdma.c43 * and each one supports 1 ring buffer used for gfx
47 * (ring buffer, IBs, etc.), but sDMA has it's own
59 * @ring: radeon ring pointer
64 struct radeon_ring *ring) in cik_sdma_get_rptr() argument
69 rptr = rdev->wb.wb[ring->rptr_offs/4]; in cik_sdma_get_rptr()
71 if (ring->idx == R600_RING_TYPE_DMA_INDEX) in cik_sdma_get_rptr()
86 * @ring: radeon ring pointer
91 struct radeon_ring *ring) in cik_sdma_get_wptr() argument
95 if (ring->idx == R600_RING_TYPE_DMA_INDEX) in cik_sdma_get_wptr()
107 * @ring: radeon ring pointer
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/Linux-v5.10/drivers/soc/ti/
Dk3-ringacc.c3 * TI K3 NAVSS Ring Accelerator subsystem driver
29 * @db: Ring Doorbell Register
31 * @occ: Ring Occupancy Register
32 * @indx: Ring Current Index Register
33 * @hwocc: Ring Hardware Occupancy Register
34 * @hwindx: Ring Hardware Current Index Register
49 * struct k3_ring_fifo_regs - The Ring Accelerator Queues Registers region
51 * @head_data: Ring Head Entry Data Registers
52 * @tail_data: Ring Tail Entry Data Registers
53 * @peek_head_data: Ring Peek Head Entry Data Regs
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/Linux-v5.10/drivers/net/wireless/broadcom/b43legacy/
Ddma.c32 struct b43legacy_dmadesc32 *op32_idx2desc(struct b43legacy_dmaring *ring, in op32_idx2desc() argument
38 *meta = &(ring->meta[slot]); in op32_idx2desc()
39 desc = ring->descbase; in op32_idx2desc()
45 static void op32_fill_descriptor(struct b43legacy_dmaring *ring, in op32_fill_descriptor() argument
50 struct b43legacy_dmadesc32 *descbase = ring->descbase; in op32_fill_descriptor()
57 B43legacy_WARN_ON(!(slot >= 0 && slot < ring->nr_slots)); in op32_fill_descriptor()
62 addr |= ring->dev->dma.translation; in op32_fill_descriptor()
63 ctl = (bufsize - ring->frameoffset) in op32_fill_descriptor()
65 if (slot == ring->nr_slots - 1) in op32_fill_descriptor()
80 static void op32_poke_tx(struct b43legacy_dmaring *ring, int slot) in op32_poke_tx() argument
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/Linux-v5.10/drivers/net/wireless/broadcom/b43/
Ddma.c72 struct b43_dmadesc_generic *op32_idx2desc(struct b43_dmaring *ring, in op32_idx2desc() argument
78 *meta = &(ring->meta[slot]); in op32_idx2desc()
79 desc = ring->descbase; in op32_idx2desc()
85 static void op32_fill_descriptor(struct b43_dmaring *ring, in op32_fill_descriptor() argument
90 struct b43_dmadesc32 *descbase = ring->descbase; in op32_fill_descriptor()
97 B43_WARN_ON(!(slot >= 0 && slot < ring->nr_slots)); in op32_fill_descriptor()
99 addr = b43_dma_address(&ring->dev->dma, dmaaddr, B43_DMA_ADDR_LOW); in op32_fill_descriptor()
100 addrext = b43_dma_address(&ring->dev->dma, dmaaddr, B43_DMA_ADDR_EXT); in op32_fill_descriptor()
103 if (slot == ring->nr_slots - 1) in op32_fill_descriptor()
118 static void op32_poke_tx(struct b43_dmaring *ring, int slot) in op32_poke_tx() argument
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/Linux-v5.10/drivers/net/ethernet/apm/xgene/
Dxgene_enet_ring2.c12 static void xgene_enet_ring_init(struct xgene_enet_desc_ring *ring) in xgene_enet_ring_init() argument
14 u32 *ring_cfg = ring->state; in xgene_enet_ring_init()
15 u64 addr = ring->dma; in xgene_enet_ring_init()
17 if (xgene_enet_ring_owner(ring->id) == RING_OWNER_CPU) { in xgene_enet_ring_init()
18 ring_cfg[0] |= SET_VAL(X2_INTLINE, ring->id & RING_BUFNUM_MASK); in xgene_enet_ring_init()
27 ring_cfg[3] |= SET_VAL(RINGSIZE, ring->cfgsize) in xgene_enet_ring_init()
34 static void xgene_enet_ring_set_type(struct xgene_enet_desc_ring *ring) in xgene_enet_ring_set_type() argument
36 u32 *ring_cfg = ring->state; in xgene_enet_ring_set_type()
40 is_bufpool = xgene_enet_is_bufpool(ring->id); in xgene_enet_ring_set_type()
47 static void xgene_enet_ring_set_recombbuf(struct xgene_enet_desc_ring *ring) in xgene_enet_ring_set_recombbuf() argument
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/Linux-v5.10/drivers/thunderbolt/
Dnhi.c26 #define RING_TYPE(ring) ((ring)->is_tx ? "TX ring" : "RX ring") argument
39 static int ring_interrupt_index(struct tb_ring *ring) in ring_interrupt_index() argument
41 int bit = ring->hop; in ring_interrupt_index()
42 if (!ring->is_tx) in ring_interrupt_index()
43 bit += ring->nhi->hop_count; in ring_interrupt_index()
48 * ring_interrupt_active() - activate/deactivate interrupts for a single ring
50 * ring->nhi->lock must be held.
52 static void ring_interrupt_active(struct tb_ring *ring, bool active) in ring_interrupt_active() argument
55 ring_interrupt_index(ring) / 32 * 4; in ring_interrupt_active()
56 int bit = ring_interrupt_index(ring) & 31; in ring_interrupt_active()
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/Linux-v5.10/drivers/crypto/qat/qat_common/
Dadf_transport.c36 static int adf_reserve_ring(struct adf_etr_bank_data *bank, u32 ring) in adf_reserve_ring() argument
39 if (bank->ring_mask & (1 << ring)) { in adf_reserve_ring()
43 bank->ring_mask |= (1 << ring); in adf_reserve_ring()
48 static void adf_unreserve_ring(struct adf_etr_bank_data *bank, u32 ring) in adf_unreserve_ring() argument
51 bank->ring_mask &= ~(1 << ring); in adf_unreserve_ring()
55 static void adf_enable_ring_irq(struct adf_etr_bank_data *bank, u32 ring) in adf_enable_ring_irq() argument
58 bank->irq_mask |= (1 << ring); in adf_enable_ring_irq()
65 static void adf_disable_ring_irq(struct adf_etr_bank_data *bank, u32 ring) in adf_disable_ring_irq() argument
68 bank->irq_mask &= ~(1 << ring); in adf_disable_ring_irq()
73 int adf_send_message(struct adf_etr_ring_data *ring, u32 *msg) in adf_send_message() argument
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/Linux-v5.10/drivers/gpu/drm/i915/gt/
Dintel_ring.c14 unsigned int intel_ring_update_space(struct intel_ring *ring) in intel_ring_update_space() argument
18 space = __intel_ring_space(ring->head, ring->emit, ring->size); in intel_ring_update_space()
20 ring->space = space; in intel_ring_update_space()
24 void __intel_ring_pin(struct intel_ring *ring) in __intel_ring_pin() argument
26 GEM_BUG_ON(!atomic_read(&ring->pin_count)); in __intel_ring_pin()
27 atomic_inc(&ring->pin_count); in __intel_ring_pin()
30 int intel_ring_pin(struct intel_ring *ring, struct i915_gem_ww_ctx *ww) in intel_ring_pin() argument
32 struct i915_vma *vma = ring->vma; in intel_ring_pin()
37 if (atomic_fetch_inc(&ring->pin_count)) in intel_ring_pin()
40 /* Ring wraparound at offset 0 sometimes hangs. No idea why. */ in intel_ring_pin()
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Dselftest_ring.c8 struct intel_ring *ring; in mock_ring() local
10 ring = kzalloc(sizeof(*ring) + sz, GFP_KERNEL); in mock_ring()
11 if (!ring) in mock_ring()
14 kref_init(&ring->ref); in mock_ring()
15 ring->size = sz; in mock_ring()
16 ring->wrap = BITS_PER_TYPE(ring->size) - ilog2(sz); in mock_ring()
17 ring->effective_size = sz; in mock_ring()
18 ring->vaddr = (void *)(ring + 1); in mock_ring()
19 atomic_set(&ring->pin_count, 1); in mock_ring()
21 intel_ring_update_space(ring); in mock_ring()
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/Linux-v5.10/drivers/crypto/inside-secure/
Dsafexcel_ring.c21 /* Actual command descriptor ring */ in safexcel_init_ring_descriptors()
32 /* Command descriptor shadow ring for storing additional token data */ in safexcel_init_ring_descriptors()
78 struct safexcel_desc_ring *ring, in safexcel_ring_next_cwptr() argument
82 void *ptr = ring->write; in safexcel_ring_next_cwptr()
85 *atoken = ring->shwrite; in safexcel_ring_next_cwptr()
87 if ((ring->write == ring->read - ring->offset) || in safexcel_ring_next_cwptr()
88 (ring->read == ring->base && ring->write == ring->base_end)) in safexcel_ring_next_cwptr()
91 if (ring->write == ring->base_end) { in safexcel_ring_next_cwptr()
92 ring->write = ring->base; in safexcel_ring_next_cwptr()
93 ring->shwrite = ring->shbase; in safexcel_ring_next_cwptr()
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/Linux-v5.10/Documentation/devicetree/bindings/net/wireless/
Dqcom,ath11k.yaml33 - description: interrupt event for ring CE0
34 - description: interrupt event for ring CE1
35 - description: interrupt event for ring CE2
36 - description: interrupt event for ring CE3
37 - description: interrupt event for ring CE4
38 - description: interrupt event for ring CE5
39 - description: interrupt event for ring CE6
40 - description: interrupt event for ring CE7
41 - description: interrupt event for ring CE8
42 - description: interrupt event for ring CE9
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/Linux-v5.10/drivers/net/ethernet/mellanox/mlx4/
Den_tx.c55 struct mlx4_en_tx_ring *ring; in mlx4_en_create_tx_ring() local
59 ring = kzalloc_node(sizeof(*ring), GFP_KERNEL, node); in mlx4_en_create_tx_ring()
60 if (!ring) { in mlx4_en_create_tx_ring()
61 en_err(priv, "Failed allocating TX ring\n"); in mlx4_en_create_tx_ring()
65 ring->size = size; in mlx4_en_create_tx_ring()
66 ring->size_mask = size - 1; in mlx4_en_create_tx_ring()
67 ring->sp_stride = stride; in mlx4_en_create_tx_ring()
68 ring->full_size = ring->size - HEADROOM - MAX_DESC_TXBBS; in mlx4_en_create_tx_ring()
71 ring->tx_info = kvmalloc_node(tmp, GFP_KERNEL, node); in mlx4_en_create_tx_ring()
72 if (!ring->tx_info) { in mlx4_en_create_tx_ring()
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/Linux-v5.10/drivers/gpu/drm/msm/
Dmsm_ringbuffer.c13 struct msm_ringbuffer *ring; in msm_ringbuffer_new() local
20 ring = kzalloc(sizeof(*ring), GFP_KERNEL); in msm_ringbuffer_new()
21 if (!ring) { in msm_ringbuffer_new()
26 ring->gpu = gpu; in msm_ringbuffer_new()
27 ring->id = id; in msm_ringbuffer_new()
29 ring->start = msm_gem_kernel_new(gpu->dev, MSM_GPU_RINGBUFFER_SZ, in msm_ringbuffer_new()
31 gpu->aspace, &ring->bo, &ring->iova); in msm_ringbuffer_new()
33 if (IS_ERR(ring->start)) { in msm_ringbuffer_new()
34 ret = PTR_ERR(ring->start); in msm_ringbuffer_new()
35 ring->start = 0; in msm_ringbuffer_new()
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/Linux-v5.10/drivers/net/wireless/ath/ath11k/
Ddbring.c10 struct ath11k_dbring *ring, in ath11k_dbring_bufs_replenish() argument
22 srng = &ab->hal.srng_list[ring->refill_srng.ring_id]; in ath11k_dbring_bufs_replenish()
29 ptr_aligned = PTR_ALIGN(ptr_unaligned, ring->buf_align); in ath11k_dbring_bufs_replenish()
30 paddr = dma_map_single(ab->dev, ptr_aligned, ring->buf_sz, in ath11k_dbring_bufs_replenish()
37 spin_lock_bh(&ring->idr_lock); in ath11k_dbring_bufs_replenish()
38 buf_id = idr_alloc(&ring->bufs_idr, buff, 0, ring->bufs_max, gfp); in ath11k_dbring_bufs_replenish()
39 spin_unlock_bh(&ring->idr_lock); in ath11k_dbring_bufs_replenish()
63 spin_lock_bh(&ring->idr_lock); in ath11k_dbring_bufs_replenish()
64 idr_remove(&ring->bufs_idr, buf_id); in ath11k_dbring_bufs_replenish()
65 spin_unlock_bh(&ring->idr_lock); in ath11k_dbring_bufs_replenish()
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/Linux-v5.10/net/rds/
Dib_ring.c66 void rds_ib_ring_init(struct rds_ib_work_ring *ring, u32 nr) in rds_ib_ring_init() argument
68 memset(ring, 0, sizeof(*ring)); in rds_ib_ring_init()
69 ring->w_nr = nr; in rds_ib_ring_init()
70 rdsdebug("ring %p nr %u\n", ring, ring->w_nr); in rds_ib_ring_init()
73 static inline u32 __rds_ib_ring_used(struct rds_ib_work_ring *ring) in __rds_ib_ring_used() argument
78 diff = ring->w_alloc_ctr - (u32) atomic_read(&ring->w_free_ctr); in __rds_ib_ring_used()
79 BUG_ON(diff > ring->w_nr); in __rds_ib_ring_used()
84 void rds_ib_ring_resize(struct rds_ib_work_ring *ring, u32 nr) in rds_ib_ring_resize() argument
88 BUG_ON(__rds_ib_ring_used(ring)); in rds_ib_ring_resize()
89 ring->w_nr = nr; in rds_ib_ring_resize()
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/Linux-v5.10/tools/testing/selftests/net/
Dpsock_tpacket.c66 struct ring { struct
71 void (*walk)(int sock, struct ring *ring); argument
220 static void walk_v1_v2_rx(int sock, struct ring *ring) in walk_v1_v2_rx() argument
227 bug_on(ring->type != PACKET_RX_RING); in walk_v1_v2_rx()
239 while (__v1_v2_rx_kernel_ready(ring->rd[frame_num].iov_base, in walk_v1_v2_rx()
240 ring->version)) { in walk_v1_v2_rx()
241 ppd.raw = ring->rd[frame_num].iov_base; in walk_v1_v2_rx()
243 switch (ring->version) { in walk_v1_v2_rx()
260 __v1_v2_rx_user_ready(ppd.raw, ring->version); in walk_v1_v2_rx()
262 frame_num = (frame_num + 1) % ring->rd_num; in walk_v1_v2_rx()
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/Linux-v5.10/drivers/net/ethernet/aquantia/atlantic/
Daq_vec.c27 struct aq_ring_s ring[AQ_CFG_TCS_MAX][2]; member
37 struct aq_ring_s *ring = NULL; in aq_vec_poll() local
46 for (i = 0U, ring = self->ring[0]; in aq_vec_poll()
47 self->tx_rings > i; ++i, ring = self->ring[i]) { in aq_vec_poll()
48 u64_stats_update_begin(&ring[AQ_VEC_RX_ID].stats.rx.syncp); in aq_vec_poll()
49 ring[AQ_VEC_RX_ID].stats.rx.polls++; in aq_vec_poll()
50 u64_stats_update_end(&ring[AQ_VEC_RX_ID].stats.rx.syncp); in aq_vec_poll()
54 &ring[AQ_VEC_TX_ID]); in aq_vec_poll()
59 if (ring[AQ_VEC_TX_ID].sw_head != in aq_vec_poll()
60 ring[AQ_VEC_TX_ID].hw_head) { in aq_vec_poll()
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