LXR linux/drivers/gpu/drm/amd/amdgpu/amdgpu

   1/*
   2 * Copyright 2014 Advanced Micro Devices, Inc.
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a
   5 * copy of this software and associated documentation files (the "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 * OTHER DEALINGS IN THE SOFTWARE.
  21 *
  22 */
  23
  24#ifndef __AMDGPU_IH_H__
  25#define __AMDGPU_IH_H__
  26
  27struct amdgpu_device;
  28 /*
  29  * vega10+ IH clients
  30 */
  31enum amdgpu_ih_clientid
  32{
  33    AMDGPU_IH_CLIENTID_IH           = 0x00,
  34    AMDGPU_IH_CLIENTID_ACP          = 0x01,
  35    AMDGPU_IH_CLIENTID_ATHUB        = 0x02,
  36    AMDGPU_IH_CLIENTID_BIF          = 0x03,
  37    AMDGPU_IH_CLIENTID_DCE          = 0x04,
  38    AMDGPU_IH_CLIENTID_ISP          = 0x05,
  39    AMDGPU_IH_CLIENTID_PCIE0        = 0x06,
  40    AMDGPU_IH_CLIENTID_RLC          = 0x07,
  41    AMDGPU_IH_CLIENTID_SDMA0        = 0x08,
  42    AMDGPU_IH_CLIENTID_SDMA1        = 0x09,
  43    AMDGPU_IH_CLIENTID_SE0SH        = 0x0a,
  44    AMDGPU_IH_CLIENTID_SE1SH        = 0x0b,
  45    AMDGPU_IH_CLIENTID_SE2SH        = 0x0c,
  46    AMDGPU_IH_CLIENTID_SE3SH        = 0x0d,
  47    AMDGPU_IH_CLIENTID_SYSHUB       = 0x0e,
  48    AMDGPU_IH_CLIENTID_THM          = 0x0f,
  49    AMDGPU_IH_CLIENTID_UVD          = 0x10,
  50    AMDGPU_IH_CLIENTID_VCE0         = 0x11,
  51    AMDGPU_IH_CLIENTID_VMC          = 0x12,
  52    AMDGPU_IH_CLIENTID_XDMA         = 0x13,
  53    AMDGPU_IH_CLIENTID_GRBM_CP      = 0x14,
  54    AMDGPU_IH_CLIENTID_ATS          = 0x15,
  55    AMDGPU_IH_CLIENTID_ROM_SMUIO    = 0x16,
  56    AMDGPU_IH_CLIENTID_DF           = 0x17,
  57    AMDGPU_IH_CLIENTID_VCE1         = 0x18,
  58    AMDGPU_IH_CLIENTID_PWR          = 0x19,
  59    AMDGPU_IH_CLIENTID_UTCL2        = 0x1b,
  60    AMDGPU_IH_CLIENTID_EA           = 0x1c,
  61    AMDGPU_IH_CLIENTID_UTCL2LOG     = 0x1d,
  62    AMDGPU_IH_CLIENTID_MP0          = 0x1e,
  63    AMDGPU_IH_CLIENTID_MP1          = 0x1f,
  64
  65    AMDGPU_IH_CLIENTID_MAX
  66
  67};
  68
  69#define AMDGPU_IH_CLIENTID_LEGACY 0
  70
  71/*
  72 * R6xx+ IH ring
  73 */
  74struct amdgpu_ih_ring {
  75        struct amdgpu_bo        *ring_obj;
  76        volatile uint32_t       *ring;
  77        unsigned                rptr;
  78        unsigned                ring_size;
  79        uint64_t                gpu_addr;
  80        uint32_t                ptr_mask;
  81        atomic_t                lock;
  82        bool                    enabled;
  83        unsigned                wptr_offs;
  84        unsigned                rptr_offs;
  85        u32                     doorbell_index;
  86        bool                    use_doorbell;
  87        bool                    use_bus_addr;
  88        dma_addr_t              rb_dma_addr; /* only used when use_bus_addr = true */
  89};
  90
  91#define AMDGPU_IH_SRC_DATA_MAX_SIZE_DW 4
  92
  93struct amdgpu_iv_entry {
  94        unsigned client_id;
  95        unsigned src_id;
  96        unsigned ring_id;
  97        unsigned vm_id;
  98        unsigned vm_id_src;
  99        uint64_t timestamp;
 100        unsigned timestamp_src;
 101        unsigned pas_id;
 102        unsigned pasid_src;
 103        unsigned src_data[AMDGPU_IH_SRC_DATA_MAX_SIZE_DW];
 104        const uint32_t *iv_entry;
 105};
 106
 107int amdgpu_ih_ring_init(struct amdgpu_device *adev, unsigned ring_size,
 108                        bool use_bus_addr);
 109void amdgpu_ih_ring_fini(struct amdgpu_device *adev);
 110int amdgpu_ih_process(struct amdgpu_device *adev);
 111
 112#endif
 113