/* * Copyright 2018 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. * */ /* * GPU doorbell structures, functions & helpers */ struct amdgpu_doorbell { /* doorbell mmio */ resource_size_t base; resource_size_t size; u32 __iomem *ptr; u32 num_doorbells; /* Number of doorbells actually reserved for amdgpu. */ }; /* Reserved doorbells for amdgpu (including multimedia). * KFD can use all the rest in the 2M doorbell bar. * For asic before vega10, doorbell is 32-bit, so the * index/offset is in dword. For vega10 and after, doorbell * can be 64-bit, so the index defined is in qword. */ struct amdgpu_doorbell_index { uint32_t kiq; uint32_t mec_ring0; uint32_t mec_ring1; uint32_t mec_ring2; uint32_t mec_ring3; uint32_t mec_ring4; uint32_t mec_ring5; uint32_t mec_ring6; uint32_t mec_ring7; uint32_t userqueue_start; uint32_t userqueue_end; uint32_t gfx_ring0; uint32_t sdma_engine[8]; uint32_t ih; union { struct { uint32_t vcn_ring0_1; uint32_t vcn_ring2_3; uint32_t vcn_ring4_5; uint32_t vcn_ring6_7; } vcn; struct { uint32_t uvd_ring0_1; uint32_t uvd_ring2_3; uint32_t uvd_ring4_5; uint32_t uvd_ring6_7; uint32_t vce_ring0_1; uint32_t vce_ring2_3; uint32_t vce_ring4_5; uint32_t vce_ring6_7; } uvd_vce; }; uint32_t max_assignment; /* Per engine SDMA doorbell size in dword */ uint32_t sdma_doorbell_range; }; typedef enum _AMDGPU_DOORBELL_ASSIGNMENT { AMDGPU_DOORBELL_KIQ = 0x000, AMDGPU_DOORBELL_HIQ = 0x001, AMDGPU_DOORBELL_DIQ = 0x002, AMDGPU_DOORBELL_MEC_RING0 = 0x010, AMDGPU_DOORBELL_MEC_RING1 = 0x011, AMDGPU_DOORBELL_MEC_RING2 = 0x012, AMDGPU_DOORBELL_MEC_RING3 = 0x013, AMDGPU_DOORBELL_MEC_RING4 = 0x014, AMDGPU_DOORBELL_MEC_RING5 = 0x015, AMDGPU_DOORBELL_MEC_RING6 = 0x016, AMDGPU_DOORBELL_MEC_RING7 = 0x017, AMDGPU_DOORBELL_GFX_RING0 = 0x020, AMDGPU_DOORBELL_sDMA_ENGINE0 = 0x1E0, AMDGPU_DOORBELL_sDMA_ENGINE1 = 0x1E1, AMDGPU_DOORBELL_IH = 0x1E8, AMDGPU_DOORBELL_MAX_ASSIGNMENT = 0x3FF, AMDGPU_DOORBELL_INVALID = 0xFFFF } AMDGPU_DOORBELL_ASSIGNMENT; typedef enum _AMDGPU_VEGA20_DOORBELL_ASSIGNMENT { /* Compute + GFX: 0~255 */ AMDGPU_VEGA20_DOORBELL_KIQ = 0x000, AMDGPU_VEGA20_DOORBELL_HIQ = 0x001, AMDGPU_VEGA20_DOORBELL_DIQ = 0x002, AMDGPU_VEGA20_DOORBELL_MEC_RING0 = 0x003, AMDGPU_VEGA20_DOORBELL_MEC_RING1 = 0x004, AMDGPU_VEGA20_DOORBELL_MEC_RING2 = 0x005, AMDGPU_VEGA20_DOORBELL_MEC_RING3 = 0x006, AMDGPU_VEGA20_DOORBELL_MEC_RING4 = 0x007, AMDGPU_VEGA20_DOORBELL_MEC_RING5 = 0x008, AMDGPU_VEGA20_DOORBELL_MEC_RING6 = 0x009, AMDGPU_VEGA20_DOORBELL_MEC_RING7 = 0x00A, AMDGPU_VEGA20_DOORBELL_USERQUEUE_START = 0x00B, AMDGPU_VEGA20_DOORBELL_USERQUEUE_END = 0x08A, AMDGPU_VEGA20_DOORBELL_GFX_RING0 = 0x08B, /* SDMA:256~335*/ AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE0 = 0x100, AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE1 = 0x10A, AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE2 = 0x114, AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE3 = 0x11E, AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE4 = 0x128, AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE5 = 0x132, AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE6 = 0x13C, AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE7 = 0x146, /* IH: 376~391 */ AMDGPU_VEGA20_DOORBELL_IH = 0x178, /* MMSCH: 392~407 * overlap the doorbell assignment with VCN as they are mutually exclusive * VCE engine's doorbell is 32 bit and two VCE ring share one QWORD */ AMDGPU_VEGA20_DOORBELL64_VCN0_1 = 0x188, /* lower 32 bits for VNC0 and upper 32 bits for VNC1 */ AMDGPU_VEGA20_DOORBELL64_VCN2_3 = 0x189, AMDGPU_VEGA20_DOORBELL64_VCN4_5 = 0x18A, AMDGPU_VEGA20_DOORBELL64_VCN6_7 = 0x18B, AMDGPU_VEGA20_DOORBELL64_UVD_RING0_1 = 0x188, AMDGPU_VEGA20_DOORBELL64_UVD_RING2_3 = 0x189, AMDGPU_VEGA20_DOORBELL64_UVD_RING4_5 = 0x18A, AMDGPU_VEGA20_DOORBELL64_UVD_RING6_7 = 0x18B, AMDGPU_VEGA20_DOORBELL64_VCE_RING0_1 = 0x18C, AMDGPU_VEGA20_DOORBELL64_VCE_RING2_3 = 0x18D, AMDGPU_VEGA20_DOORBELL64_VCE_RING4_5 = 0x18E, AMDGPU_VEGA20_DOORBELL64_VCE_RING6_7 = 0x18F, AMDGPU_VEGA20_DOORBELL_MAX_ASSIGNMENT = 0x18F, AMDGPU_VEGA20_DOORBELL_INVALID = 0xFFFF } AMDGPU_VEGA20_DOORBELL_ASSIGNMENT; /* * 64bit doorbell, offset are in QWORD, occupy 2KB doorbell space */ typedef enum _AMDGPU_DOORBELL64_ASSIGNMENT { /* * All compute related doorbells: kiq, hiq, diq, traditional compute queue, user queue, should locate in * a continues range so that programming CP_MEC_DOORBELL_RANGE_LOWER/UPPER can cover this range. * Compute related doorbells are allocated from 0x00 to 0x8a */ /* kernel scheduling */ AMDGPU_DOORBELL64_KIQ = 0x00, /* HSA interface queue and debug queue */ AMDGPU_DOORBELL64_HIQ = 0x01, AMDGPU_DOORBELL64_DIQ = 0x02, /* Compute engines */ AMDGPU_DOORBELL64_MEC_RING0 = 0x03, AMDGPU_DOORBELL64_MEC_RING1 = 0x04, AMDGPU_DOORBELL64_MEC_RING2 = 0x05, AMDGPU_DOORBELL64_MEC_RING3 = 0x06, AMDGPU_DOORBELL64_MEC_RING4 = 0x07, AMDGPU_DOORBELL64_MEC_RING5 = 0x08, AMDGPU_DOORBELL64_MEC_RING6 = 0x09, AMDGPU_DOORBELL64_MEC_RING7 = 0x0a, /* User queue doorbell range (128 doorbells) */ AMDGPU_DOORBELL64_USERQUEUE_START = 0x0b, AMDGPU_DOORBELL64_USERQUEUE_END = 0x8a, /* Graphics engine */ AMDGPU_DOORBELL64_GFX_RING0 = 0x8b, /* * Other graphics doorbells can be allocated here: from 0x8c to 0xdf * Graphics voltage island aperture 1 * default non-graphics QWORD index is 0xe0 - 0xFF inclusive */ /* For vega10 sriov, the sdma doorbell must be fixed as follow * to keep the same setting with host driver, or it will * happen conflicts */ AMDGPU_DOORBELL64_sDMA_ENGINE0 = 0xF0, AMDGPU_DOORBELL64_sDMA_HI_PRI_ENGINE0 = 0xF1, AMDGPU_DOORBELL64_sDMA_ENGINE1 = 0xF2, AMDGPU_DOORBELL64_sDMA_HI_PRI_ENGINE1 = 0xF3, /* Interrupt handler */ AMDGPU_DOORBELL64_IH = 0xF4, /* For legacy interrupt ring buffer */ AMDGPU_DOORBELL64_IH_RING1 = 0xF5, /* For page migration request log */ AMDGPU_DOORBELL64_IH_RING2 = 0xF6, /* For page migration translation/invalidation log */ /* VCN engine use 32 bits doorbell */ AMDGPU_DOORBELL64_VCN0_1 = 0xF8, /* lower 32 bits for VNC0 and upper 32 bits for VNC1 */ AMDGPU_DOORBELL64_VCN2_3 = 0xF9, AMDGPU_DOORBELL64_VCN4_5 = 0xFA, AMDGPU_DOORBELL64_VCN6_7 = 0xFB, /* overlap the doorbell assignment with VCN as they are mutually exclusive * VCE engine's doorbell is 32 bit and two VCE ring share one QWORD */ AMDGPU_DOORBELL64_UVD_RING0_1 = 0xF8, AMDGPU_DOORBELL64_UVD_RING2_3 = 0xF9, AMDGPU_DOORBELL64_UVD_RING4_5 = 0xFA, AMDGPU_DOORBELL64_UVD_RING6_7 = 0xFB, AMDGPU_DOORBELL64_VCE_RING0_1 = 0xFC, AMDGPU_DOORBELL64_VCE_RING2_3 = 0xFD, AMDGPU_DOORBELL64_VCE_RING4_5 = 0xFE, AMDGPU_DOORBELL64_VCE_RING6_7 = 0xFF, AMDGPU_DOORBELL64_MAX_ASSIGNMENT = 0xFF, AMDGPU_DOORBELL64_INVALID = 0xFFFF } AMDGPU_DOORBELL64_ASSIGNMENT; u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index); void amdgpu_mm_wdoorbell(struct amdgpu_device *adev, u32 index, u32 v); u64 amdgpu_mm_rdoorbell64(struct amdgpu_device *adev, u32 index); void amdgpu_mm_wdoorbell64(struct amdgpu_device *adev, u32 index, u64 v); #define RDOORBELL32(index) amdgpu_mm_rdoorbell(adev, (index)) #define WDOORBELL32(index, v) amdgpu_mm_wdoorbell(adev, (index), (v)) #define RDOORBELL64(index) amdgpu_mm_rdoorbell64(adev, (index)) #define WDOORBELL64(index, v) amdgpu_mm_wdoorbell64(adev, (index), (v))