diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h | 50 |
1 files changed, 32 insertions, 18 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h index f637574644c0..09f6727e7c73 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h @@ -31,10 +31,15 @@ struct amdgpu_doorbell { /* doorbell mmio */ resource_size_t base; resource_size_t size; - u32 __iomem *ptr; /* Number of doorbells reserved for amdgpu kernel driver */ u32 num_kernel_doorbells; + + /* Kernel doorbells */ + struct amdgpu_bo *kernel_doorbells; + + /* For CPU access of doorbells */ + uint32_t *cpu_addr; }; /* Reserved doorbells for amdgpu (including multimedia). @@ -90,8 +95,7 @@ struct amdgpu_doorbell_index { uint32_t xcc_doorbell_range; }; -typedef enum _AMDGPU_DOORBELL_ASSIGNMENT -{ +enum AMDGPU_DOORBELL_ASSIGNMENT { AMDGPU_DOORBELL_KIQ = 0x000, AMDGPU_DOORBELL_HIQ = 0x001, AMDGPU_DOORBELL_DIQ = 0x002, @@ -109,10 +113,10 @@ typedef enum _AMDGPU_DOORBELL_ASSIGNMENT AMDGPU_DOORBELL_IH = 0x1E8, AMDGPU_DOORBELL_MAX_ASSIGNMENT = 0x3FF, AMDGPU_DOORBELL_INVALID = 0xFFFF -} AMDGPU_DOORBELL_ASSIGNMENT; +}; + +enum AMDGPU_VEGA20_DOORBELL_ASSIGNMENT { -typedef enum _AMDGPU_VEGA20_DOORBELL_ASSIGNMENT -{ /* Compute + GFX: 0~255 */ AMDGPU_VEGA20_DOORBELL_KIQ = 0x000, AMDGPU_VEGA20_DOORBELL_HIQ = 0x001, @@ -176,10 +180,10 @@ typedef enum _AMDGPU_VEGA20_DOORBELL_ASSIGNMENT AMDGPU_VEGA20_DOORBELL_MAX_ASSIGNMENT = 0x1F7, AMDGPU_VEGA20_DOORBELL_INVALID = 0xFFFF -} AMDGPU_VEGA20_DOORBELL_ASSIGNMENT; +}; + +enum AMDGPU_NAVI10_DOORBELL_ASSIGNMENT { -typedef enum _AMDGPU_NAVI10_DOORBELL_ASSIGNMENT -{ /* Compute + GFX: 0~255 */ AMDGPU_NAVI10_DOORBELL_KIQ = 0x000, AMDGPU_NAVI10_DOORBELL_HIQ = 0x001, @@ -227,13 +231,12 @@ typedef enum _AMDGPU_NAVI10_DOORBELL_ASSIGNMENT AMDGPU_NAVI10_DOORBELL_MAX_ASSIGNMENT = 0x18F, AMDGPU_NAVI10_DOORBELL_INVALID = 0xFFFF -} AMDGPU_NAVI10_DOORBELL_ASSIGNMENT; +}; /* * 64bit doorbell, offset are in QWORD, occupy 2KB doorbell space */ -typedef enum _AMDGPU_DOORBELL64_ASSIGNMENT -{ +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. @@ -309,9 +312,10 @@ typedef enum _AMDGPU_DOORBELL64_ASSIGNMENT AMDGPU_DOORBELL64_MAX_ASSIGNMENT = 0xFF, AMDGPU_DOORBELL64_INVALID = 0xFFFF -} AMDGPU_DOORBELL64_ASSIGNMENT; +}; + +enum AMDGPU_DOORBELL_ASSIGNMENT_LAYOUT1 { -typedef enum _AMDGPU_DOORBELL_ASSIGNMENT_LAYOUT1 { /* XCC0: 0x00 ~20, XCC1: 20 ~ 2F ... */ /* KIQ/HIQ/DIQ */ @@ -330,22 +334,32 @@ typedef enum _AMDGPU_DOORBELL_ASSIGNMENT_LAYOUT1 { AMDGPU_DOORBELL_LAYOUT1_sDMA_ENGINE_END = 0x19F, /* IH: 0x1A0 ~ 0x1AF */ AMDGPU_DOORBELL_LAYOUT1_IH = 0x1A0, - /* VCN: 0x1B0 ~ 0x1D4 */ + /* VCN: 0x1B0 ~ 0x1E8 */ AMDGPU_DOORBELL_LAYOUT1_VCN_START = 0x1B0, - AMDGPU_DOORBELL_LAYOUT1_VCN_END = 0x1D4, + AMDGPU_DOORBELL_LAYOUT1_VCN_END = 0x1E8, AMDGPU_DOORBELL_LAYOUT1_FIRST_NON_CP = AMDGPU_DOORBELL_LAYOUT1_sDMA_ENGINE_START, AMDGPU_DOORBELL_LAYOUT1_LAST_NON_CP = AMDGPU_DOORBELL_LAYOUT1_VCN_END, - AMDGPU_DOORBELL_LAYOUT1_MAX_ASSIGNMENT = 0x1D4, + AMDGPU_DOORBELL_LAYOUT1_MAX_ASSIGNMENT = 0x1E8, AMDGPU_DOORBELL_LAYOUT1_INVALID = 0xFFFF -} AMDGPU_DOORBELL_ASSIGNMENT_LAYOUT1; +}; 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); +/* + * GPU doorbell aperture helpers function. + */ +int amdgpu_doorbell_init(struct amdgpu_device *adev); +void amdgpu_doorbell_fini(struct amdgpu_device *adev); +int amdgpu_doorbell_create_kernel_doorbells(struct amdgpu_device *adev); +uint32_t amdgpu_doorbell_index_on_bar(struct amdgpu_device *adev, + struct amdgpu_bo *db_bo, + uint32_t doorbell_index); + #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)) |