diff options
| author | Lijo Lazar <lijo.lazar@amd.com> | 2023-01-19 12:17:22 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 16:52:06 +0300 |
| commit | 233bb3733bd43966696f4a5e95129476e86bf4e3 (patch) | |
| tree | 1cabfd0608e225d3e85e841d8ff8ea65ba2dce9c /drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h | |
| parent | 7389c75114c53b061d686f19dff5833adaf96cb8 (diff) | |
| download | linux-233bb3733bd43966696f4a5e95129476e86bf4e3.tar.xz | |
drm/amdgpu: Use unique doorbell range per xcc
Program different ranges in each XCC with MEC_DOORBELL_RANGE_LOWER/HIGHER.
Keeping the same range causes CPF in other XCCs also to be busy when an IB
packet is submitted to KCQ. Only the XCC which processes the packet
comes back to idle afterwards and this causes other CPs not be idle.
This in turn affects clockgating behavior as RLC doesn't get idle
interrupt.
LOWER/HIGHER covers only KIQ/KCQs which are per XCC queues. Assigning
different ranges doesn't seem to have any side effect as user queue ranges
are outside of this range. User queue tests - PM4 through KFD and AQL
through rocr - have the same results after this change.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h index 3c3ae2b4dbc8..f637574644c0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h @@ -86,6 +86,8 @@ struct amdgpu_doorbell_index { uint32_t max_assignment; /* Per engine SDMA doorbell size in dword */ uint32_t sdma_doorbell_range; + /* Per xcc doorbell size for KIQ/KCQ */ + uint32_t xcc_doorbell_range; }; typedef enum _AMDGPU_DOORBELL_ASSIGNMENT @@ -309,28 +311,31 @@ typedef enum _AMDGPU_DOORBELL64_ASSIGNMENT AMDGPU_DOORBELL64_INVALID = 0xFFFF } AMDGPU_DOORBELL64_ASSIGNMENT; -typedef enum _AMDGPU_DOORBELL_ASSIGNMENT_LAYOUT1 -{ - /* KIQ: 0~7 for maximum 8 XCD */ - AMDGPU_DOORBELL_LAYOUT1_KIQ_START = 0x000, - AMDGPU_DOORBELL_LAYOUT1_HIQ = 0x008, - AMDGPU_DOORBELL_LAYOUT1_DIQ = 0x009, - /* Compute: 0x0A ~ 0x49 */ - AMDGPU_DOORBELL_LAYOUT1_MEC_RING_START = 0x00A, - AMDGPU_DOORBELL_LAYOUT1_MEC_RING_END = 0x049, - AMDGPU_DOORBELL_LAYOUT1_USERQUEUE_START = 0x04A, - AMDGPU_DOORBELL_LAYOUT1_USERQUEUE_END = 0x0C9, +typedef enum _AMDGPU_DOORBELL_ASSIGNMENT_LAYOUT1 { + /* XCC0: 0x00 ~20, XCC1: 20 ~ 2F ... */ + + /* KIQ/HIQ/DIQ */ + AMDGPU_DOORBELL_LAYOUT1_KIQ_START = 0x000, + AMDGPU_DOORBELL_LAYOUT1_HIQ = 0x001, + AMDGPU_DOORBELL_LAYOUT1_DIQ = 0x002, + /* Compute: 0x08 ~ 0x20 */ + AMDGPU_DOORBELL_LAYOUT1_MEC_RING_START = 0x008, + AMDGPU_DOORBELL_LAYOUT1_MEC_RING_END = 0x00F, + AMDGPU_DOORBELL_LAYOUT1_USERQUEUE_START = 0x010, + AMDGPU_DOORBELL_LAYOUT1_USERQUEUE_END = 0x01F, + AMDGPU_DOORBELL_LAYOUT1_XCC_RANGE = 0x020, + /* SDMA: 0x100 ~ 0x19F */ - AMDGPU_DOORBELL_LAYOUT1_sDMA_ENGINE_START = 0x100, - AMDGPU_DOORBELL_LAYOUT1_sDMA_ENGINE_END = 0x19F, + AMDGPU_DOORBELL_LAYOUT1_sDMA_ENGINE_START = 0x100, + AMDGPU_DOORBELL_LAYOUT1_sDMA_ENGINE_END = 0x19F, /* IH: 0x1A0 ~ 0x1AF */ AMDGPU_DOORBELL_LAYOUT1_IH = 0x1A0, /* VCN: 0x1B0 ~ 0x1D4 */ AMDGPU_DOORBELL_LAYOUT1_VCN_START = 0x1B0, AMDGPU_DOORBELL_LAYOUT1_VCN_END = 0x1D4, - 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_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_INVALID = 0xFFFF |