| /* |
| * 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 first_non_cp; |
| uint32_t last_non_cp; |
| 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_DOORBELL64_FIRST_NON_CP = AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE0, |
| AMDGPU_VEGA20_DOORBELL64_LAST_NON_CP = AMDGPU_VEGA20_DOORBELL64_VCE_RING6_7, |
| |
| 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_FIRST_NON_CP = AMDGPU_DOORBELL64_sDMA_ENGINE0, |
| AMDGPU_DOORBELL64_LAST_NON_CP = AMDGPU_DOORBELL64_VCE_RING6_7, |
| |
| 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)) |
| |
