diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 147 |
1 files changed, 115 insertions, 32 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h index bbb53720a018..b95b47110769 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h @@ -37,7 +37,7 @@ struct amdgpu_job; struct amdgpu_vm; /* max number of rings */ -#define AMDGPU_MAX_RINGS 124 +#define AMDGPU_MAX_RINGS 149 #define AMDGPU_MAX_HWIP_RINGS 64 #define AMDGPU_MAX_GFX_RINGS 2 #define AMDGPU_MAX_SW_GFX_RINGS 2 @@ -82,6 +82,7 @@ enum amdgpu_ring_type { AMDGPU_RING_TYPE_KIQ, AMDGPU_RING_TYPE_MES, AMDGPU_RING_TYPE_UMSCH_MM, + AMDGPU_RING_TYPE_CPER, }; enum amdgpu_ib_pool_type { @@ -163,8 +164,24 @@ void amdgpu_fence_update_start_timestamp(struct amdgpu_ring *ring, uint32_t seq, /* provided by hw blocks that expose a ring buffer for commands */ struct amdgpu_ring_funcs { + /** + * @type: + * + * GFX, Compute, SDMA, UVD, VCE, VCN, VPE, KIQ, MES, UMSCH, and CPER + * use ring buffers. The type field just identifies which component the + * ring buffer is associated with. + */ enum amdgpu_ring_type type; uint32_t align_mask; + + /** + * @nop: + * + * Every block in the amdgpu has no-op instructions (e.g., GFX 10 + * uses PACKET3(PACKET3_NOP, 0x3FFF), VCN 5 uses VCN_ENC_CMD_NO_OP, + * etc). This field receives the specific no-op for the component + * that initializes the ring. + */ u32 nop; bool support_64bit_ptrs; bool no_user_fence; @@ -209,8 +226,7 @@ struct amdgpu_ring_funcs { 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); + unsigned (*init_cond_exec)(struct amdgpu_ring *ring, uint64_t addr); /* note usage for clock and power gating */ void (*begin_use)(struct amdgpu_ring *ring); void (*end_use)(struct amdgpu_ring *ring); @@ -236,8 +252,14 @@ struct amdgpu_ring_funcs { void (*patch_cntl)(struct amdgpu_ring *ring, unsigned offset); void (*patch_ce)(struct amdgpu_ring *ring, unsigned offset); void (*patch_de)(struct amdgpu_ring *ring, unsigned offset); + int (*reset)(struct amdgpu_ring *ring, unsigned int vmid); + void (*emit_cleaner_shader)(struct amdgpu_ring *ring); + bool (*is_guilty)(struct amdgpu_ring *ring); }; +/** + * amdgpu_ring - Holds ring information + */ struct amdgpu_ring { struct amdgpu_device *adev; const struct amdgpu_ring_funcs *funcs; @@ -245,17 +267,65 @@ struct amdgpu_ring { struct drm_gpu_scheduler sched; struct amdgpu_bo *ring_obj; - volatile uint32_t *ring; + uint32_t *ring; unsigned rptr_offs; u64 rptr_gpu_addr; volatile u32 *rptr_cpu_addr; + + /** + * @wptr: + * + * This is part of the Ring buffer implementation and represents the + * write pointer. The wptr determines where the host has written. + */ u64 wptr; + + /** + * @wptr_old: + * + * Before update wptr with the new value, usually the old value is + * stored in the wptr_old. + */ u64 wptr_old; unsigned ring_size; + + /** + * @max_dw: + * + * Maximum number of DWords for ring allocation. This information is + * provided at the ring initialization time, and each IP block can + * specify a specific value. Check places that invoke + * amdgpu_ring_init() to see the maximum size per block. + */ unsigned max_dw; + + /** + * @count_dw: + * + * This value starts with the maximum amount of DWords supported by the + * ring. This value is updated based on the ring manipulation. + */ int count_dw; uint64_t gpu_addr; + + /** + * @ptr_mask: + * + * Some IPs provide support for 64-bit pointers and others for 32-bit + * only; this behavior is component-specific and defined by the field + * support_64bit_ptr. If the IP block supports 64-bits, the mask + * 0xffffffffffffffff is set; otherwise, this value assumes buf_mask. + * Notice that this field is used to keep wptr under a valid range. + */ uint64_t ptr_mask; + + /** + * @buf_mask: + * + * Buffer mask is a value used to keep wptr count under its + * thresholding. Buffer mask initialized during the ring buffer + * initialization time, and it is defined as (ring_size / 4) -1. + */ uint32_t buf_mask; u32 idx; u32 xcc_id; @@ -273,6 +343,13 @@ struct amdgpu_ring { bool use_pollmem; unsigned wptr_offs; u64 wptr_gpu_addr; + + /** + * @wptr_cpu_addr: + * + * This is the CPU address pointer in the writeback slot. This is used + * to commit changes to the GPU. + */ volatile u32 *wptr_cpu_addr; unsigned fence_offs; u64 fence_gpu_addr; @@ -286,23 +363,23 @@ struct amdgpu_ring { unsigned cond_exe_offs; u64 cond_exe_gpu_addr; volatile u32 *cond_exe_cpu_addr; + unsigned int set_q_mode_offs; + u32 *set_q_mode_ptr; + u64 set_q_mode_token; unsigned vm_hub; unsigned vm_inv_eng; struct dma_fence *vmid_wait; bool has_compute_vm_bug; bool no_scheduler; + bool no_user_submission; int hw_prio; unsigned num_hw_submission; atomic_t *sched_score; - /* used for mes */ - bool is_mes_queue; - uint32_t hw_queue_id; - struct amdgpu_mes_ctx_data *mes_ctx; - bool is_sw_ring; unsigned int entry_index; - + /* store the cached rptr to restore after reset */ + uint64_t cached_rptr; }; #define amdgpu_ring_parse_cs(r, p, job, ib) ((r)->funcs->parse_cs((p), (job), (ib))) @@ -327,12 +404,12 @@ struct amdgpu_ring { #define amdgpu_ring_emit_reg_write_reg_wait(r, d0, d1, v, m) (r)->funcs->emit_reg_write_reg_wait((r), (d0), (d1), (v), (m)) #define amdgpu_ring_emit_frame_cntl(r, b, s) (r)->funcs->emit_frame_cntl((r), (b), (s)) #define amdgpu_ring_pad_ib(r, ib) ((r)->funcs->pad_ib((r), (ib))) -#define amdgpu_ring_init_cond_exec(r) (r)->funcs->init_cond_exec((r)) -#define amdgpu_ring_patch_cond_exec(r,o) (r)->funcs->patch_cond_exec((r),(o)) +#define amdgpu_ring_init_cond_exec(r, a) (r)->funcs->init_cond_exec((r), (a)) #define amdgpu_ring_preempt_ib(r) (r)->funcs->preempt_ib(r) #define amdgpu_ring_patch_cntl(r, o) ((r)->funcs->patch_cntl((r), (o))) #define amdgpu_ring_patch_ce(r, o) ((r)->funcs->patch_ce((r), (o))) #define amdgpu_ring_patch_de(r, o) ((r)->funcs->patch_de((r), (o))) +#define amdgpu_ring_reset(r, v) (r)->funcs->reset((r), (v)) unsigned int amdgpu_ring_max_ibs(enum amdgpu_ring_type type); int amdgpu_ring_alloc(struct amdgpu_ring *ring, unsigned ndw); @@ -373,8 +450,6 @@ static inline void amdgpu_ring_clear_ring(struct amdgpu_ring *ring) 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--; @@ -384,13 +459,8 @@ 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; @@ -398,12 +468,11 @@ static inline void amdgpu_ring_write_multiple(struct amdgpu_ring *ring, chunk2 <<= 2; if (chunk1) - memcpy(dst, src, chunk1); + memcpy(&ring->ring[occupied], src, chunk1); if (chunk2) { src += chunk1; - dst = (void *)ring->ring; - memcpy(dst, src, chunk2); + memcpy(ring->ring, src, chunk2); } ring->wptr += count_dw; @@ -411,14 +480,29 @@ static inline void amdgpu_ring_write_multiple(struct amdgpu_ring *ring, ring->count_dw -= count_dw; } -#define amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset) \ - (ring->is_mes_queue && ring->mes_ctx ? \ - (ring->mes_ctx->meta_data_gpu_addr + offset) : 0) +/** + * amdgpu_ring_patch_cond_exec - patch dw count of conditional execute + * @ring: amdgpu_ring structure + * @offset: offset returned by amdgpu_ring_init_cond_exec + * + * Calculate the dw count and patch it into a cond_exec command. + */ +static inline void amdgpu_ring_patch_cond_exec(struct amdgpu_ring *ring, + unsigned int offset) +{ + unsigned cur; -#define amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset) \ - (ring->is_mes_queue && ring->mes_ctx ? \ - (void *)((uint8_t *)(ring->mes_ctx->meta_data_ptr) + offset) : \ - NULL) + if (!ring->funcs->init_cond_exec) + return; + + WARN_ON(offset > ring->buf_mask); + WARN_ON(ring->ring[offset] != 0); + + cur = (ring->wptr - 1) & ring->buf_mask; + if (cur < offset) + cur += ring->ring_size >> 2; + ring->ring[offset] = cur - offset; +} int amdgpu_ring_test_helper(struct amdgpu_ring *ring); @@ -442,13 +526,12 @@ int amdgpu_ib_get(struct amdgpu_device *adev, struct amdgpu_vm *vm, unsigned size, enum amdgpu_ib_pool_type pool, struct amdgpu_ib *ib); -void amdgpu_ib_free(struct amdgpu_device *adev, struct amdgpu_ib *ib, - struct dma_fence *f); +void amdgpu_ib_free(struct amdgpu_ib *ib, struct dma_fence *f); int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs, struct amdgpu_ib *ibs, struct amdgpu_job *job, struct dma_fence **f); int amdgpu_ib_pool_init(struct amdgpu_device *adev); void amdgpu_ib_pool_fini(struct amdgpu_device *adev); int amdgpu_ib_ring_tests(struct amdgpu_device *adev); - +bool amdgpu_ring_sched_ready(struct amdgpu_ring *ring); #endif |