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drm/amdgpu: Doorbell layout for vega20 and future asic

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This introduces new doorbell layout for vega20 and future asics

v2: Use enum definition instead of hardcoded value

Signed-off-by: Oak Zeng <ozeng@amd.com>
Suggested-by: Felix Kuehling <Felix.Kuehling@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Oak Zeng
2018-11-19 15:59:53 -06:00
committed by Alex Deucher
parent 4e2c1ac202
commit c93aa77586
4 changed files with 105 additions and 1 deletions
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50
drivers/gpu/drm/amd/amdgpu/amdgpu.h
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@@ -392,6 +392,56 @@ struct amdgpu_doorbell {
u32 num_doorbells; /* Number of doorbells actually reserved for amdgpu. */
};
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
*/