| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20140721023351.GK3068@gmail.com>
Date: Sun, 20 Jul 2014 22:33:54 -0400
From: Jerome Glisse <j.glisse@...il.com>
To: Oded Gabbay <oded.gabbay@....com>
Cc: David Airlie <airlied@...ux.ie>,
Alex Deucher <alexdeucher@...il.com>,
Andrew Morton <akpm@...ux-foundation.org>,
John Bridgman <John.Bridgman@....com>,
Joerg Roedel <joro@...tes.org>,
Andrew Lewycky <Andrew.Lewycky@....com>,
Christian König <deathsimple@...afone.de>,
Michel Dänzer <michel.daenzer@....com>,
Ben Goz <Ben.Goz@....com>,
Alexey Skidanov <Alexey.Skidanov@....com>,
Evgeny Pinchuk <Evgeny.Pinchuk@....com>,
Alex Deucher <alexander.deucher@....com>,
Christian König <christian.koenig@....com>,
linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v2 14/25] amdkfd: Add mqd_manager module
On Thu, Jul 17, 2014 at 04:29:21PM +0300, Oded Gabbay wrote:
> From: Ben Goz <ben.goz@....com>
>
> 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@....com>
> Signed-off-by: Oded Gabbay <oded.gabbay@....com>
> ---
> 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.
> +
> +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.
> +
> +#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.
> +
> +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.
> +
> +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)
> +
> +#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
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists