Re: [PATCH v2 14/25] amdkfd: Add mqd_manager module

From: Oded Gabbay
Date: Sat Aug 02 2014 - 15:19:27 EST

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On 21/07/14 05:33, Jerome Glisse wrote:
> On Thu, Jul 17, 2014 at 04:29:21PM +0300, Oded Gabbay wrote:
>> From: Ben Goz <ben.goz@xxxxxxx>
>>
>> The mqd_manager module handles MQD data structures. MQD stands for Memory Queue Descriptor, which is used by the H/W to keep the usermode queue state in memory.
>>
>> Signed-off-by: Ben Goz <ben.goz@xxxxxxx>
>> Signed-off-by: Oded Gabbay <oded.gabbay@xxxxxxx>
>> ---
>> drivers/gpu/drm/radeon/amdkfd/Makefile | 2 +-
>> drivers/gpu/drm/radeon/amdkfd/cik_mqds.h | 185 +++++++++++++++
>> drivers/gpu/drm/radeon/amdkfd/cik_regs.h | 220 ++++++++++++++++++
>> drivers/gpu/drm/radeon/amdkfd/kfd_mqd_manager.c | 291 ++++++++++++++++++++++++
>> drivers/gpu/drm/radeon/amdkfd/kfd_mqd_manager.h | 54 +++++
>> drivers/gpu/drm/radeon/amdkfd/kfd_priv.h | 8 +
>> 6 files changed, 759 insertions(+), 1 deletion(-)
>> create mode 100644 drivers/gpu/drm/radeon/amdkfd/cik_mqds.h
>> create mode 100644 drivers/gpu/drm/radeon/amdkfd/cik_regs.h
>> create mode 100644 drivers/gpu/drm/radeon/amdkfd/kfd_mqd_manager.c
>> create mode 100644 drivers/gpu/drm/radeon/amdkfd/kfd_mqd_manager.h
>>
>> diff --git a/drivers/gpu/drm/radeon/amdkfd/Makefile b/drivers/gpu/drm/radeon/amdkfd/Makefile
>> index dbff147..b5201f4 100644
>> --- a/drivers/gpu/drm/radeon/amdkfd/Makefile
>> +++ b/drivers/gpu/drm/radeon/amdkfd/Makefile
>> @@ -6,6 +6,6 @@ ccflags-y := -Iinclude/drm
>>
>> amdkfd-y := kfd_module.o kfd_device.o kfd_chardev.o kfd_topology.o \
>> kfd_pasid.o kfd_doorbell.o kfd_vidmem.o kfd_aperture.o \
>> - kfd_process.o kfd_queue.o
>> + kfd_process.o kfd_queue.o kfd_mqd_manager.o
>>
>> obj-$(CONFIG_HSA_RADEON) += amdkfd.o
>> diff --git a/drivers/gpu/drm/radeon/amdkfd/cik_mqds.h b/drivers/gpu/drm/radeon/amdkfd/cik_mqds.h
>> new file mode 100644
>> index 0000000..ce75604
>> --- /dev/null
>> +++ b/drivers/gpu/drm/radeon/amdkfd/cik_mqds.h
>> @@ -0,0 +1,185 @@
>> +/*
>> + * Copyright 2014 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.
>> + *
>> + */
>> +
>> +#ifndef CIK_MQDS_H_
>> +#define CIK_MQDS_H_
>> +
>> +#pragma pack(push, 4)
>
> No pragma pack.
>
Fixed in v3.
>> +
>> +struct cik_hpd_registers {
>> + u32 cp_hpd_roq_offsets;
>> + u32 cp_hpd_eop_base_addr;
>> + u32 cp_hpd_eop_base_addr_hi;
>> + u32 cp_hpd_eop_vmid;
>> + u32 cp_hpd_eop_control;
>> +};
>> +
>> +/* This structure represents mqd used for cp scheduling queue
>> + * taken from Gfx72_cp_program_spec.pdf
>> + */
>> +struct cik_compute_mqd {
>> + u32 header;
>> + u32 compute_dispatch_initiator;
>> + u32 compute_dim_x;
>> + u32 compute_dim_y;
>> + u32 compute_dim_z;
>> + u32 compute_start_x;
>> + u32 compute_start_y;
>> + u32 compute_start_z;
>> + u32 compute_num_thread_x;
>> + u32 compute_num_thread_y;
>> + u32 compute_num_thread_z;
>> + u32 compute_pipelinestat_enable;
>> + u32 compute_perfcount_enable;
>> + u32 compute_pgm_lo;
>> + u32 compute_pgm_hi;
>> + u32 compute_tba_lo;
>> + u32 compute_tba_hi;
>> + u32 compute_tma_lo;
>> + u32 compute_tma_hi;
>> + u32 compute_pgm_rsrc1;
>> + u32 compute_pgm_rsrc2;
>> + u32 compute_vmid;
>> + u32 compute_resource_limits;
>> + u32 compute_static_thread_mgmt_se0;
>> + u32 compute_static_thread_mgmt_se1;
>> + u32 compute_tmpring_size;
>> + u32 compute_static_thread_mgmt_se2;
>> + u32 compute_static_thread_mgmt_se3;
>> + u32 compute_restart_x;
>> + u32 compute_restart_y;
>> + u32 compute_restart_z;
>> + u32 compute_thread_trace_enable;
>> + u32 compute_misc_reserved;
>> + u32 compute_user_data[16];
>> + u32 vgt_csinvoc_count_lo;
>> + u32 vgt_csinvoc_count_hi;
>> + u32 cp_mqd_base_addr51;
>> + u32 cp_mqd_base_addr_hi;
>> + u32 cp_hqd_active;
>> + u32 cp_hqd_vmid;
>> + u32 cp_hqd_persistent_state;
>> + u32 cp_hqd_pipe_priority;
>> + u32 cp_hqd_queue_priority;
>> + u32 cp_hqd_quantum;
>> + u32 cp_hqd_pq_base;
>> + u32 cp_hqd_pq_base_hi;
>> + u32 cp_hqd_pq_rptr;
>> + u32 cp_hqd_pq_rptr_report_addr;
>> + u32 cp_hqd_pq_rptr_report_addr_hi;
>> + u32 cp_hqd_pq_wptr_poll_addr;
>> + u32 cp_hqd_pq_wptr_poll_addr_hi;
>> + u32 cp_hqd_pq_doorbell_control;
>> + u32 cp_hqd_pq_wptr;
>> + u32 cp_hqd_pq_control;
>> + u32 cp_hqd_ib_base_addr;
>> + u32 cp_hqd_ib_base_addr_hi;
>> + u32 cp_hqd_ib_rptr;
>> + u32 cp_hqd_ib_control;
>> + u32 cp_hqd_iq_timer;
>> + u32 cp_hqd_iq_rptr;
>> + u32 cp_hqd_dequeue_request;
>> + u32 cp_hqd_dma_offload;
>> + u32 cp_hqd_sema_cmd;
>> + u32 cp_hqd_msg_type;
>> + u32 cp_hqd_atomic0_preop_lo;
>> + u32 cp_hqd_atomic0_preop_hi;
>> + u32 cp_hqd_atomic1_preop_lo;
>> + u32 cp_hqd_atomic1_preop_hi;
>> + u32 cp_hqd_hq_scheduler0;
>> + u32 cp_hqd_hq_scheduler1;
>> + u32 cp_mqd_control;
>> + u32 reserved1[10];
>> + u32 cp_mqd_query_time_lo;
>> + u32 cp_mqd_query_time_hi;
>> + u32 reserved2[4];
>> + u32 cp_mqd_connect_start_time_lo;
>> + u32 cp_mqd_connect_start_time_hi;
>> + u32 cp_mqd_connect_end_time_lo;
>> + u32 cp_mqd_connect_end_time_hi;
>> + u32 cp_mqd_connect_end_wf_count;
>> + u32 cp_mqd_connect_end_pq_rptr;
>> + u32 cp_mqd_connect_end_pq_wptr;
>> + u32 cp_mqd_connect_end_ib_rptr;
>> + u32 reserved3[18];
>> +};
>> +
>> +/* This structure represents all *IQs
>> + * Taken from Gfx73_CPC_Eng_Init_Prog.pdf
>> + */
>> +struct cik_interface_mqd {
>> + u32 reserved1[128];
>> + u32 cp_mqd_base_addr;
>> + u32 cp_mqd_base_addr_hi;
>> + u32 cp_hqd_active;
>> + u32 cp_hqd_vmid;
>> + u32 cp_hqd_persistent_state;
>> + u32 cp_hqd_pipe_priority;
>> + u32 cp_hqd_queue_priority;
>> + u32 cp_hqd_quantum;
>> + u32 cp_hqd_pq_base;
>> + u32 cp_hqd_pq_base_hi;
>> + u32 cp_hqd_pq_rptr;
>> + u32 cp_hqd_pq_rptr_report_addr;
>> + u32 cp_hqd_pq_rptr_report_addr_hi;
>> + u32 cp_hqd_pq_wptr_poll_addr;
>> + u32 cp_hqd_pq_wptr_poll_addr_hi;
>> + u32 cp_hqd_pq_doorbell_control;
>> + u32 cp_hqd_pq_wptr;
>> + u32 cp_hqd_pq_control;
>> + u32 cp_hqd_ib_base_addr;
>> + u32 cp_hqd_ib_base_addr_hi;
>> + u32 cp_hqd_ib_rptr;
>> + u32 cp_hqd_ib_control;
>> + u32 cp_hqd_iq_timer;
>> + u32 cp_hqd_iq_rptr;
>> + u32 cp_hqd_dequeue_request;
>> + u32 cp_hqd_dma_offload;
>> + u32 cp_hqd_sema_cmd;
>> + u32 cp_hqd_msg_type;
>> + u32 cp_hqd_atomic0_preop_lo;
>> + u32 cp_hqd_atomic0_preop_hi;
>> + u32 cp_hqd_atomic1_preop_lo;
>> + u32 cp_hqd_atomic1_preop_hi;
>> + u32 cp_hqd_hq_status0;
>> + u32 cp_hqd_hq_control0;
>> + u32 cp_mqd_control;
>> + u32 reserved2[3];
>> + u32 cp_hqd_hq_status1;
>> + u32 cp_hqd_hq_control1;
>> + u32 reserved3[16];
>> + u32 cp_hqd_hq_status2;
>> + u32 cp_hqd_hq_control2;
>> + u32 cp_hqd_hq_status3;
>> + u32 cp_hqd_hq_control3;
>> + u32 reserved4[2];
>> + u32 cp_mqd_query_time_lo;
>> + u32 cp_mqd_query_time_hi;
>> + u32 reserved5[48];
>> + u32 cp_mqd_skip_process[16];
>> +};
>
> I have not fully check but very few of the above fields are use. So please
> do strip this structure to only used field we need to keep stack use as low
> as possible. Moreover the whole reserved* business kind of tell me that this
> is done to match register layout which i would rather avoid being use as a
> struct.
>
The struct cik_mqd, which also includes struct cik_hqd_registers,
describe the mqd itself. The mqd is not registers perse, but rather a
structure that is common interface between the CPU and GPU. Although we
don't initalize all its members (as some of them are for the GPU usage),
I believe this is the proper way to use it. Do you have another suggestion ?

>> +
>> +#pragma pack(pop)
>> +
>> +
>> +#endif /* CIK_MQDS_H_ */
>> diff --git a/drivers/gpu/drm/radeon/amdkfd/cik_regs.h b/drivers/gpu/drm/radeon/amdkfd/cik_regs.h
>> new file mode 100644
>> index 0000000..a6404e3
>> --- /dev/null
>> +++ b/drivers/gpu/drm/radeon/amdkfd/cik_regs.h
>> @@ -0,0 +1,220 @@
>> +/*
>> + * Copyright 2014 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.
>> + */
>> +
>> +#ifndef CIK_REGS_H
>> +#define CIK_REGS_H
>> +
>> +#define IH_VMID_0_LUT 0x3D40u
>> +
>> +#define BIF_DOORBELL_CNTL 0x530Cu
>> +
>> +#define SRBM_GFX_CNTL 0xE44
>> +#define PIPEID(x) ((x) << 0)
>> +#define MEID(x) ((x) << 2)
>> +#define VMID(x) ((x) << 4)
>> +#define QUEUEID(x) ((x) << 8)
>> +
>> +#define SQ_CONFIG 0x8C00
>> +
>> +#define SH_MEM_BASES 0x8C28
>> +/* if PTR32, these are the bases for scratch and lds */
>> +#define PRIVATE_BASE(x) ((x) << 0) /* scratch */
>> +#define SHARED_BASE(x) ((x) << 16) /* LDS */
>> +#define SH_MEM_APE1_BASE 0x8C2C
>> +/* if PTR32, this is the base location of GPUVM */
>> +#define SH_MEM_APE1_LIMIT 0x8C30
>> +/* if PTR32, this is the upper limit of GPUVM */
>> +#define SH_MEM_CONFIG 0x8C34
>> +#define PTR32 (1 << 0)
>> +#define PRIVATE_ATC (1 << 1)
>> +#define ALIGNMENT_MODE(x) ((x) << 2)
>> +#define SH_MEM_ALIGNMENT_MODE_DWORD 0
>> +#define SH_MEM_ALIGNMENT_MODE_DWORD_STRICT 1
>> +#define SH_MEM_ALIGNMENT_MODE_STRICT 2
>> +#define SH_MEM_ALIGNMENT_MODE_UNALIGNED 3
>> +#define DEFAULT_MTYPE(x) ((x) << 4)
>> +#define APE1_MTYPE(x) ((x) << 7)
>> +
>> +/* valid for both DEFAULT_MTYPE and APE1_MTYPE */
>> +#define MTYPE_CACHED 0
>> +#define MTYPE_NONCACHED 3
>> +
>> +
>> +#define SH_STATIC_MEM_CONFIG 0x9604u
>> +
>> +#define TC_CFG_L1_LOAD_POLICY0 0xAC68
>> +#define TC_CFG_L1_LOAD_POLICY1 0xAC6C
>> +#define TC_CFG_L1_STORE_POLICY 0xAC70
>> +#define TC_CFG_L2_LOAD_POLICY0 0xAC74
>> +#define TC_CFG_L2_LOAD_POLICY1 0xAC78
>> +#define TC_CFG_L2_STORE_POLICY0 0xAC7C
>> +#define TC_CFG_L2_STORE_POLICY1 0xAC80
>> +#define TC_CFG_L2_ATOMIC_POLICY 0xAC84
>> +#define TC_CFG_L1_VOLATILE 0xAC88
>> +#define TC_CFG_L2_VOLATILE 0xAC8C
>> +
>> +#define CP_PQ_WPTR_POLL_CNTL 0xC20C
>> +#define WPTR_POLL_EN (1 << 31)
>> +
>> +#define CPC_INT_CNTL 0xC2D0
>> +#define CP_ME1_PIPE0_INT_CNTL 0xC214
>> +#define CP_ME1_PIPE1_INT_CNTL 0xC218
>> +#define CP_ME1_PIPE2_INT_CNTL 0xC21C
>> +#define CP_ME1_PIPE3_INT_CNTL 0xC220
>> +#define CP_ME2_PIPE0_INT_CNTL 0xC224
>> +#define CP_ME2_PIPE1_INT_CNTL 0xC228
>> +#define CP_ME2_PIPE2_INT_CNTL 0xC22C
>> +#define CP_ME2_PIPE3_INT_CNTL 0xC230
>> +#define DEQUEUE_REQUEST_INT_ENABLE (1 << 13)
>> +#define WRM_POLL_TIMEOUT_INT_ENABLE (1 << 17)
>> +#define PRIV_REG_INT_ENABLE (1 << 23)
>> +#define TIME_STAMP_INT_ENABLE (1 << 26)
>> +#define GENERIC2_INT_ENABLE (1 << 29)
>> +#define GENERIC1_INT_ENABLE (1 << 30)
>> +#define GENERIC0_INT_ENABLE (1 << 31)
>> +#define CP_ME1_PIPE0_INT_STATUS 0xC214
>> +#define CP_ME1_PIPE1_INT_STATUS 0xC218
>> +#define CP_ME1_PIPE2_INT_STATUS 0xC21C
>> +#define CP_ME1_PIPE3_INT_STATUS 0xC220
>> +#define CP_ME2_PIPE0_INT_STATUS 0xC224
>> +#define CP_ME2_PIPE1_INT_STATUS 0xC228
>> +#define CP_ME2_PIPE2_INT_STATUS 0xC22C
>> +#define CP_ME2_PIPE3_INT_STATUS 0xC230
>> +#define DEQUEUE_REQUEST_INT_STATUS (1 << 13)
>> +#define WRM_POLL_TIMEOUT_INT_STATUS (1 << 17)
>> +#define PRIV_REG_INT_STATUS (1 << 23)
>> +#define TIME_STAMP_INT_STATUS (1 << 26)
>> +#define GENERIC2_INT_STATUS (1 << 29)
>> +#define GENERIC1_INT_STATUS (1 << 30)
>> +#define GENERIC0_INT_STATUS (1 << 31)
>> +
>> +#define CP_HPD_EOP_BASE_ADDR 0xC904
>> +#define CP_HPD_EOP_BASE_ADDR_HI 0xC908
>> +#define CP_HPD_EOP_VMID 0xC90C
>> +#define CP_HPD_EOP_CONTROL 0xC910
>> +#define EOP_SIZE(x) ((x) << 0)
>> +#define EOP_SIZE_MASK (0x3f << 0)
>> +#define CP_MQD_BASE_ADDR 0xC914
>> +#define CP_MQD_BASE_ADDR_HI 0xC918
>> +#define CP_HQD_ACTIVE 0xC91C
>> +#define CP_HQD_VMID 0xC920
>> +
>> +#define CP_HQD_PERSISTENT_STATE 0xC924u
>> +#define DEFAULT_CP_HQD_PERSISTENT_STATE (0x33U << 8)
>> +
>> +#define CP_HQD_PIPE_PRIORITY 0xC928u
>> +#define CP_HQD_QUEUE_PRIORITY 0xC92Cu
>> +#define CP_HQD_QUANTUM 0xC930u
>> +#define QUANTUM_EN 1U
>> +#define QUANTUM_SCALE_1MS (1U << 4)
>> +#define QUANTUM_DURATION(x) ((x) << 8)
>> +
>> +#define CP_HQD_PQ_BASE 0xC934
>> +#define CP_HQD_PQ_BASE_HI 0xC938
>> +#define CP_HQD_PQ_RPTR 0xC93C
>> +#define CP_HQD_PQ_RPTR_REPORT_ADDR 0xC940
>> +#define CP_HQD_PQ_RPTR_REPORT_ADDR_HI 0xC944
>> +#define CP_HQD_PQ_WPTR_POLL_ADDR 0xC948
>> +#define CP_HQD_PQ_WPTR_POLL_ADDR_HI 0xC94C
>> +#define CP_HQD_PQ_DOORBELL_CONTROL 0xC950
>> +#define DOORBELL_OFFSET(x) ((x) << 2)
>> +#define DOORBELL_OFFSET_MASK (0x1fffff << 2)
>> +#define DOORBELL_SOURCE (1 << 28)
>> +#define DOORBELL_SCHD_HIT (1 << 29)
>> +#define DOORBELL_EN (1 << 30)
>> +#define DOORBELL_HIT (1 << 31)
>> +#define CP_HQD_PQ_WPTR 0xC954
>> +#define CP_HQD_PQ_CONTROL 0xC958
>> +#define QUEUE_SIZE(x) ((x) << 0)
>> +#define QUEUE_SIZE_MASK (0x3f << 0)
>> +#define RPTR_BLOCK_SIZE(x) ((x) << 8)
>> +#define RPTR_BLOCK_SIZE_MASK (0x3f << 8)
>> +#define MIN_AVAIL_SIZE(x) ((x) << 20)
>> +#define PQ_ATC_EN (1 << 23)
>> +#define PQ_VOLATILE (1 << 26)
>> +#define NO_UPDATE_RPTR (1 << 27)
>> +#define UNORD_DISPATCH (1 << 28)
>> +#define ROQ_PQ_IB_FLIP (1 << 29)
>> +#define PRIV_STATE (1 << 30)
>> +#define KMD_QUEUE (1 << 31)
>> +
>> +#define DEFAULT_RPTR_BLOCK_SIZE RPTR_BLOCK_SIZE(5)
>> +#define DEFAULT_MIN_AVAIL_SIZE MIN_AVAIL_SIZE(3)
>> +
>> +#define CP_HQD_IB_BASE_ADDR 0xC95Cu
>> +#define CP_HQD_IB_BASE_ADDR_HI 0xC960u
>> +#define CP_HQD_IB_RPTR 0xC964u
>> +#define CP_HQD_IB_CONTROL 0xC968u
>> +#define IB_ATC_EN (1U << 23)
>> +#define DEFAULT_MIN_IB_AVAIL_SIZE (3U << 20)
>> +
>> +#define CP_HQD_DEQUEUE_REQUEST 0xC974
>> +#define DEQUEUE_REQUEST_DRAIN 1
>> +#define DEQUEUE_REQUEST_RESET 2
>> +#define DEQUEUE_INT (1U << 8)
>> +
>> +#define CP_HQD_SEMA_CMD 0xC97Cu
>> +#define CP_HQD_MSG_TYPE 0xC980u
>> +#define CP_HQD_ATOMIC0_PREOP_LO 0xC984u
>> +#define CP_HQD_ATOMIC0_PREOP_HI 0xC988u
>> +#define CP_HQD_ATOMIC1_PREOP_LO 0xC98Cu
>> +#define CP_HQD_ATOMIC1_PREOP_HI 0xC990u
>> +#define CP_HQD_HQ_SCHEDULER0 0xC994u
>> +#define CP_HQD_HQ_SCHEDULER1 0xC998u
>> +
>> +
>> +#define CP_MQD_CONTROL 0xC99C
>> +#define MQD_VMID(x) ((x) << 0)
>> +#define MQD_VMID_MASK (0xf << 0)
>> +#define MQD_CONTROL_PRIV_STATE_EN (1U << 8)
>> +
>> +#define GRBM_GFX_INDEX 0x30800
>> +#define INSTANCE_INDEX(x) ((x) << 0)
>> +#define SH_INDEX(x) ((x) << 8)
>> +#define SE_INDEX(x) ((x) << 16)
>> +#define SH_BROADCAST_WRITES (1 << 29)
>> +#define INSTANCE_BROADCAST_WRITES (1 << 30)
>> +#define SE_BROADCAST_WRITES (1 << 31)
>> +
>> +#define SQC_CACHES 0x30d20
>> +#define SQC_POLICY 0x8C38u
>> +#define SQC_VOLATILE 0x8C3Cu
>> +
>> +#define CP_PERFMON_CNTL 0x36020
>> +
>> +#define ATC_VMID0_PASID_MAPPING 0x339Cu
>> +#define ATC_VMID_PASID_MAPPING_UPDATE_STATUS 0x3398u
>> +#define ATC_VMID_PASID_MAPPING_VALID (1U << 31)
>> +
>> +#define ATC_VM_APERTURE0_CNTL 0x3310u
>> +#define ATS_ACCESS_MODE_NEVER 0
>> +#define ATS_ACCESS_MODE_ALWAYS 1
>> +
>> +#define ATC_VM_APERTURE0_CNTL2 0x3318u
>> +#define ATC_VM_APERTURE0_HIGH_ADDR 0x3308u
>> +#define ATC_VM_APERTURE0_LOW_ADDR 0x3300u
>> +#define ATC_VM_APERTURE1_CNTL 0x3314u
>> +#define ATC_VM_APERTURE1_CNTL2 0x331Cu
>> +#define ATC_VM_APERTURE1_HIGH_ADDR 0x330Cu
>> +#define ATC_VM_APERTURE1_LOW_ADDR 0x3304u
>> +
>> +#endif
>> diff --git a/drivers/gpu/drm/radeon/amdkfd/kfd_mqd_manager.c b/drivers/gpu/drm/radeon/amdkfd/kfd_mqd_manager.c
>> new file mode 100644
>> index 0000000..5f9f9b9
>> --- /dev/null
>> +++ b/drivers/gpu/drm/radeon/amdkfd/kfd_mqd_manager.c
>> @@ -0,0 +1,291 @@
>> +/*
>> + * Copyright 2014 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.
>> + *
>> + */
>> +
>> +#include <linux/printk.h>
>> +#include <linux/slab.h>
>> +#include "kfd_priv.h"
>> +#include "kfd_mqd_manager.h"
>> +#include "cik_mqds.h"
>> +#include "cik_regs.h"
>> +#include "../cik_reg.h"
>> +
>> +inline uint32_t lower_32(uint64_t x)
>> +{
>> + return (uint32_t)x;
>> +}
>> +
>> +inline uint32_t upper_32(uint64_t x)
>> +{
>> + return (uint32_t)(x >> 32);
>> +}
>
> Do use kernel macro upper_32_bits or lower_32_bits. Each time you do something
> like that go check for existing macro.
>
Done in v3
>> +
>> +inline void busy_wait(unsigned long ms)
>> +{
>> + while (time_before(jiffies, ms))
>> + cpu_relax();
>> +}
>> +
>> +static inline struct cik_mqd *get_mqd(void *mqd)
>> +{
>> + return (struct cik_mqd *)mqd;
>> +}
>> +
>> +static int init_mqd(struct mqd_manager *mm, void **mqd, kfd_mem_obj *mqd_mem_obj,
>> + uint64_t *gart_addr, struct queue_properties *q)
>> +{
>> + uint64_t addr;
>> + struct cik_mqd *m;
>> + int retval;
>> +
>> + BUG_ON(!mm || !q || !mqd);
>> +
>> + pr_debug("kfd: In func %s\n", __func__);
>> +
>> + retval = kfd_vidmem_alloc_map(
>> + mm->dev,
>> + mqd_mem_obj,
>> + (void **)&m,
>> + &addr,
>> + ALIGN(sizeof(struct cik_mqd), 256));
>> +
>> + if (retval != 0)
>> + return -ENOMEM;
>> +
>> + memset(m, 0, sizeof(struct cik_mqd));
>> +
>> + m->header = 0xC0310800;
>> + m->pipeline_stat_enable = 1;
>> + m->static_thread_mgmt01[0] = 0xFFFFFFFF;
>> + m->static_thread_mgmt01[1] = 0xFFFFFFFF;
>> + m->static_thread_mgmt23[0] = 0xFFFFFFFF;
>> + m->static_thread_mgmt23[1] = 0xFFFFFFFF;
>> +
>> + m->queue_state.cp_hqd_persistent_state = DEFAULT_CP_HQD_PERSISTENT_STATE;
>> +
>> + m->queue_state.cp_mqd_control = MQD_CONTROL_PRIV_STATE_EN;
>> + m->queue_state.cp_mqd_base_addr = lower_32(addr);
>> + m->queue_state.cp_mqd_base_addr_hi = upper_32(addr);
>> +
>> + m->queue_state.cp_hqd_ib_control = DEFAULT_MIN_IB_AVAIL_SIZE | IB_ATC_EN;
>> + /* Although WinKFD writes this, I suspect it should not be necessary. */
>> + m->queue_state.cp_hqd_ib_control = IB_ATC_EN | DEFAULT_MIN_IB_AVAIL_SIZE;
>> +
>> + m->queue_state.cp_hqd_quantum = QUANTUM_EN | QUANTUM_SCALE_1MS | QUANTUM_DURATION(10);
>> +
>> + m->queue_state.cp_hqd_pipe_priority = 1;
>> + m->queue_state.cp_hqd_queue_priority = 15;
>> +
>> + *mqd = m;
>> + if (gart_addr != NULL)
>> + *gart_addr = addr;
>> + retval = mm->update_mqd(mm, m, q);
>> +
>> + return retval;
>> +}
>> +
>> +static void uninit_mqd(struct mqd_manager *mm, void *mqd, kfd_mem_obj mqd_mem_obj)
>> +{
>> + BUG_ON(!mm || !mqd);
>> + kfd_vidmem_free_unmap(mm->dev, mqd_mem_obj);
>> +}
>> +
>> +static int load_mqd(struct mqd_manager *mm, void *mqd, uint32_t pipe_id, uint32_t queue_id, uint32_t __user *wptr)
>> +{
>> + return kfd2kgd->hqd_load(mm->dev->kgd, mqd, pipe_id, queue_id, wptr);
>> +
>> +}
>> +
>> +static int update_mqd(struct mqd_manager *mm, void *mqd, struct queue_properties *q)
>> +{
>> + struct cik_mqd *m;
>> +
>> + BUG_ON(!mm || !q || !mqd);
>> +
>> + pr_debug("kfd: In func %s\n", __func__);
>> +
>> + m = get_mqd(mqd);
>> + m->queue_state.cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE | DEFAULT_MIN_AVAIL_SIZE | PQ_ATC_EN;
>> + /* calculating queue size which is log base 2 of actual queue size -1 dwords and another -1 for ffs */
>> + m->queue_state.cp_hqd_pq_control |= ffs(q->queue_size / sizeof(unsigned int)) - 1 - 1;
>> + m->queue_state.cp_hqd_pq_base = lower_32((uint64_t)q->queue_address >> 8);
>> + m->queue_state.cp_hqd_pq_base_hi = upper_32((uint64_t)q->queue_address >> 8);
>> + m->queue_state.cp_hqd_pq_rptr_report_addr = lower_32((uint64_t)q->read_ptr);
>> + m->queue_state.cp_hqd_pq_rptr_report_addr_hi = upper_32((uint64_t)q->read_ptr);
>> + m->queue_state.cp_hqd_pq_doorbell_control = DOORBELL_EN | DOORBELL_OFFSET(q->doorbell_off);
>> +
>> + m->queue_state.cp_hqd_vmid = q->vmid;
>> +
>> + m->queue_state.cp_hqd_active = 0;
>> + q->is_active = false;
>> + if (q->queue_size > 0 &&
>> + q->queue_address != 0 &&
>> + q->queue_percent > 0) {
>> + m->queue_state.cp_hqd_active = 1;
>> + q->is_active = true;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +static int destroy_mqd(struct mqd_manager *mm, bool is_reset, unsigned int timeout, uint32_t pipe_id, uint32_t queue_id)
>> +{
>> + return kfd2kgd->hqd_destroy(mm->dev->kgd, is_reset, timeout, pipe_id, queue_id);
>> +}
>> +
>> +bool is_occupied(struct mqd_manager *mm, uint64_t queue_address, uint32_t pipe_id, uint32_t queue_id)
>> +{
>> +
>> + return kfd2kgd->hqd_is_occupies(mm->dev->kgd, queue_address, pipe_id, queue_id);
>> +
>> +}
>> +
>> +/*
>> + * HIQ MQD Implementation
>> + */
>
> A more useful comment than that.
Done in v3
>
>> +
>> +static int init_mqd_hiq(struct mqd_manager *mm, void **mqd, kfd_mem_obj *mqd_mem_obj,
>> + uint64_t *gart_addr, struct queue_properties *q)
>> +{
>> + uint64_t addr;
>> + struct cik_mqd *m;
>> + int retval;
>> +
>> + BUG_ON(!mm || !q || !mqd || !mqd_mem_obj);
>> +
>> + pr_debug("kfd: In func %s\n", __func__);
>> +
>> + retval = kfd_vidmem_alloc_map(
>> + mm->dev,
>> + mqd_mem_obj,
>> + (void **)&m,
>> + &addr,
>> + ALIGN(sizeof(struct cik_mqd), PAGE_SIZE));
>> +
>> + if (retval != 0)
>> + return -ENOMEM;
>> +
>> + memset(m, 0, sizeof(struct cik_mqd));
>> +
>> + m->header = 0xC0310800;
>> + m->pipeline_stat_enable = 1;
>> + m->static_thread_mgmt01[0] = 0xFFFFFFFF;
>> + m->static_thread_mgmt01[1] = 0xFFFFFFFF;
>> + m->static_thread_mgmt23[0] = 0xFFFFFFFF;
>> + m->static_thread_mgmt23[1] = 0xFFFFFFFF;
>> +
>> + m->queue_state.cp_hqd_persistent_state = DEFAULT_CP_HQD_PERSISTENT_STATE;
>> +
>> + m->queue_state.cp_mqd_control = MQD_CONTROL_PRIV_STATE_EN;
>> + m->queue_state.cp_mqd_base_addr = lower_32(addr);
>> + m->queue_state.cp_mqd_base_addr_hi = upper_32(addr);
>> +
>> + m->queue_state.cp_hqd_ib_control = DEFAULT_MIN_IB_AVAIL_SIZE;
>> +
>> + m->queue_state.cp_hqd_quantum = QUANTUM_EN | QUANTUM_SCALE_1MS | QUANTUM_DURATION(10);
>> +
>> + m->queue_state.cp_hqd_pipe_priority = 1;
>> + m->queue_state.cp_hqd_queue_priority = 15;
>> +
>> + *mqd = m;
>> + if (gart_addr)
>> + *gart_addr = addr;
>> + retval = mm->update_mqd(mm, m, q);
>> +
>> + return retval;
>> +}
>> +
>> +static int update_mqd_hiq(struct mqd_manager *mm, void *mqd, struct queue_properties *q)
>> +{
>> + struct cik_mqd *m;
>> +
>> + BUG_ON(!mm || !q || !mqd);
>> +
>> + pr_debug("kfd: In func %s\n", __func__);
>> +
>> + m = get_mqd(mqd);
>> + m->queue_state.cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE | DEFAULT_MIN_AVAIL_SIZE | PRIV_STATE | KMD_QUEUE;
>> + /* calculating queue size which is log base 2 of actual queue size -1 dwords */
>> + m->queue_state.cp_hqd_pq_control |= ffs(q->queue_size / sizeof(unsigned int)) - 1 - 1;
>> + m->queue_state.cp_hqd_pq_base = lower_32((uint64_t)q->queue_address >> 8);
>> + m->queue_state.cp_hqd_pq_base_hi = upper_32((uint64_t)q->queue_address >> 8);
>> + m->queue_state.cp_hqd_pq_rptr_report_addr = lower_32((uint64_t)q->read_ptr);
>> + m->queue_state.cp_hqd_pq_rptr_report_addr_hi = upper_32((uint64_t)q->read_ptr);
>> + m->queue_state.cp_hqd_pq_doorbell_control = DOORBELL_EN | DOORBELL_OFFSET(q->doorbell_off);
>> +
>> + m->queue_state.cp_hqd_vmid = q->vmid;
>> +
>> + m->queue_state.cp_hqd_active = 0;
>> + q->is_active = false;
>> + if (q->queue_size > 0 &&
>> + q->queue_address != 0 &&
>> + q->queue_percent > 0) {
>> + m->queue_state.cp_hqd_active = 1;
>> + q->is_active = true;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +struct mqd_manager *mqd_manager_init(enum KFD_MQD_TYPE type, struct kfd_dev *dev)
>> +{
>> + struct mqd_manager *mqd;
>> +
>> + BUG_ON(!dev);
>> + BUG_ON(type >= KFD_MQD_TYPE_MAX);
>> +
>> + pr_debug("kfd: In func %s\n", __func__);
>> +
>> + mqd = kzalloc(sizeof(struct mqd_manager), GFP_KERNEL);
>> + if (!mqd)
>> + return NULL;
>> +
>> + mqd->dev = dev;
>> +
>> + switch (type) {
>> + case KFD_MQD_TYPE_CIK_CP:
>> + case KFD_MQD_TYPE_CIK_COMPUTE:
>> + mqd->init_mqd = init_mqd;
>> + mqd->uninit_mqd = uninit_mqd;
>> + mqd->load_mqd = load_mqd;
>> + mqd->update_mqd = update_mqd;
>> + mqd->destroy_mqd = destroy_mqd;
>> + mqd->is_occupied = is_occupied;
>> + break;
>> + case KFD_MQD_TYPE_CIK_HIQ:
>> + mqd->init_mqd = init_mqd_hiq;
>> + mqd->uninit_mqd = uninit_mqd;
>> + mqd->load_mqd = load_mqd;
>> + mqd->update_mqd = update_mqd_hiq;
>> + mqd->destroy_mqd = destroy_mqd;
>> + mqd->is_occupied = is_occupied;
>> + break;
>> + default:
>> + kfree(mqd);
>> + return NULL;
>> + break;
>> + }
>> +
>> + return mqd;
>> +}
>> +
>> +/* SDMA queues should be implemented here when the cp will supports them */
>> diff --git a/drivers/gpu/drm/radeon/amdkfd/kfd_mqd_manager.h b/drivers/gpu/drm/radeon/amdkfd/kfd_mqd_manager.h
>> new file mode 100644
>> index 0000000..a6b0007
>> --- /dev/null
>> +++ b/drivers/gpu/drm/radeon/amdkfd/kfd_mqd_manager.h
>> @@ -0,0 +1,54 @@
>> +/*
>> + * Copyright 2014 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.
>> + *
>> + */
>> +
>> +#ifndef KFD_MQD_MANAGER_H_
>> +#define KFD_MQD_MANAGER_H_
>> +
>> +#include "kfd_priv.h"
>> +
>> +struct mqd_manager {
>> + int (*init_mqd)(struct mqd_manager *mm, void **mqd,
>> + kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
>> + struct queue_properties *q);
>> +
>> + int (*load_mqd)(struct mqd_manager *mm, void *mqd,
>> + uint32_t pipe_id, uint32_t queue_id,
>> + uint32_t __user *wptr);
>> +
>> + int (*update_mqd)(struct mqd_manager *mm, void *mqd,
>> + struct queue_properties *q);
>> +
>> + int (*destroy_mqd)(struct mqd_manager *mm, bool is_reset,
>> + unsigned int timeout, uint32_t pipe_id,
>> + uint32_t queue_id);
>> +
>> + void (*uninit_mqd)(struct mqd_manager *mm, void *mqd,
>> + kfd_mem_obj mqd_mem_obj);
>> + bool (*is_occupied)(struct mqd_manager *mm, uint64_t queue_address,
>> + uint32_t pipe_id, uint32_t queue_id);
>> +
>> + struct mutex mqd_mutex;
>> + struct kfd_dev *dev;
>> +};
>
> Would be nice to have this interface documented. For reference see how ttm
> document things (include/drm/ttm/*.h)
>
Done in v3

Oded
>> +
>> +#endif /* KFD_MQD_MANAGER_H_ */
>> diff --git a/drivers/gpu/drm/radeon/amdkfd/kfd_priv.h b/drivers/gpu/drm/radeon/amdkfd/kfd_priv.h
>> index 94ff1c3..76494757 100644
>> --- a/drivers/gpu/drm/radeon/amdkfd/kfd_priv.h
>> +++ b/drivers/gpu/drm/radeon/amdkfd/kfd_priv.h
>> @@ -179,6 +179,14 @@ struct queue {
>> struct kfd_dev *device;
>> };
>>
>> +enum KFD_MQD_TYPE {
>> + KFD_MQD_TYPE_CIK_COMPUTE = 0, /* for no cp scheduling */
>> + KFD_MQD_TYPE_CIK_HIQ, /* for hiq */
>> + KFD_MQD_TYPE_CIK_CP, /* for cp queues and diq */
>> + KFD_MQD_TYPE_CIK_SDMA, /* for sdma queues */
>> + KFD_MQD_TYPE_MAX
>> +};
>> +
>> /* Data that is per-process-per device. */
>> struct kfd_process_device {
>> /*
>> --
>> 1.9.1
>>
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