diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h new file mode 100644 index 000000000000..0f8026d64ea5 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h @@ -0,0 +1,182 @@ +/* + * Copyright 2022 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 AMDGPU_XCP_H +#define AMDGPU_XCP_H + +#include <linux/pci.h> +#include <linux/xarray.h> + +#include "amdgpu_ctx.h" + +#define MAX_XCP 8 + +#define AMDGPU_XCP_MODE_NONE -1 +#define AMDGPU_XCP_MODE_TRANS -2 + +#define AMDGPU_XCP_FL_NONE 0 +#define AMDGPU_XCP_FL_LOCKED (1 << 0) + +struct amdgpu_fpriv; + +enum AMDGPU_XCP_IP_BLOCK { + AMDGPU_XCP_GFXHUB, + AMDGPU_XCP_GFX, + AMDGPU_XCP_SDMA, + AMDGPU_XCP_VCN, + AMDGPU_XCP_MAX_BLOCKS +}; + +enum AMDGPU_XCP_STATE { + AMDGPU_XCP_PREPARE_SUSPEND, + AMDGPU_XCP_SUSPEND, + AMDGPU_XCP_PREPARE_RESUME, + AMDGPU_XCP_RESUME, +}; + +struct amdgpu_xcp_ip_funcs { + int (*prepare_suspend)(void *handle, uint32_t inst_mask); + int (*suspend)(void *handle, uint32_t inst_mask); + int (*prepare_resume)(void *handle, uint32_t inst_mask); + int (*resume)(void *handle, uint32_t inst_mask); +}; + +struct amdgpu_xcp_ip { + struct amdgpu_xcp_ip_funcs *ip_funcs; + uint32_t inst_mask; + + enum AMDGPU_XCP_IP_BLOCK ip_id; + bool valid; +}; + +struct amdgpu_xcp { + struct amdgpu_xcp_ip ip[AMDGPU_XCP_MAX_BLOCKS]; + + uint8_t id; + uint8_t mem_id; + bool valid; + atomic_t ref_cnt; + struct drm_device *ddev; + struct drm_device *rdev; + struct drm_device *pdev; + struct drm_driver *driver; + struct drm_vma_offset_manager *vma_offset_manager; + struct amdgpu_sched gpu_sched[AMDGPU_HW_IP_NUM][AMDGPU_RING_PRIO_MAX]; +}; + +struct amdgpu_xcp_mgr { + struct amdgpu_device *adev; + struct mutex xcp_lock; + struct amdgpu_xcp_mgr_funcs *funcs; + + struct amdgpu_xcp xcp[MAX_XCP]; + uint8_t num_xcps; + int8_t mode; + + /* Used to determine KFD memory size limits per XCP */ + unsigned int num_xcp_per_mem_partition; +}; + +struct amdgpu_xcp_mgr_funcs { + int (*switch_partition_mode)(struct amdgpu_xcp_mgr *xcp_mgr, int mode, + int *num_xcps); + int (*query_partition_mode)(struct amdgpu_xcp_mgr *xcp_mgr); + int (*get_ip_details)(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id, + enum AMDGPU_XCP_IP_BLOCK ip_id, + struct amdgpu_xcp_ip *ip); + int (*get_xcp_mem_id)(struct amdgpu_xcp_mgr *xcp_mgr, + struct amdgpu_xcp *xcp, uint8_t *mem_id); + + int (*prepare_suspend)(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); + int (*suspend)(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); + int (*prepare_resume)(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); + int (*resume)(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); + int (*select_scheds)(struct amdgpu_device *adev, + u32 hw_ip, u32 hw_prio, struct amdgpu_fpriv *fpriv, + unsigned int *num_scheds, struct drm_gpu_scheduler ***scheds); + int (*update_partition_sched_list)(struct amdgpu_device *adev); +}; + +int amdgpu_xcp_prepare_suspend(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); +int amdgpu_xcp_suspend(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); +int amdgpu_xcp_prepare_resume(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); +int amdgpu_xcp_resume(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); + +int amdgpu_xcp_mgr_init(struct amdgpu_device *adev, int init_mode, + int init_xcps, struct amdgpu_xcp_mgr_funcs *xcp_funcs); +int amdgpu_xcp_init(struct amdgpu_xcp_mgr *xcp_mgr, int num_xcps, int mode); +int amdgpu_xcp_query_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, u32 flags); +int amdgpu_xcp_switch_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, int mode); +int amdgpu_xcp_get_partition(struct amdgpu_xcp_mgr *xcp_mgr, + enum AMDGPU_XCP_IP_BLOCK ip, int instance); + +int amdgpu_xcp_get_inst_details(struct amdgpu_xcp *xcp, + enum AMDGPU_XCP_IP_BLOCK ip, + uint32_t *inst_mask); + +int amdgpu_xcp_dev_register(struct amdgpu_device *adev, + const struct pci_device_id *ent); +void amdgpu_xcp_dev_unplug(struct amdgpu_device *adev); +int amdgpu_xcp_open_device(struct amdgpu_device *adev, + struct amdgpu_fpriv *fpriv, + struct drm_file *file_priv); +void amdgpu_xcp_release_sched(struct amdgpu_device *adev, + struct amdgpu_ctx_entity *entity); + +#define amdgpu_xcp_select_scheds(adev, e, c, d, x, y) \ + ((adev)->xcp_mgr && (adev)->xcp_mgr->funcs && \ + (adev)->xcp_mgr->funcs->select_scheds ? \ + (adev)->xcp_mgr->funcs->select_scheds((adev), (e), (c), (d), (x), (y)) : -ENOENT) +#define amdgpu_xcp_update_partition_sched_list(adev) \ + ((adev)->xcp_mgr && (adev)->xcp_mgr->funcs && \ + (adev)->xcp_mgr->funcs->update_partition_sched_list ? \ + (adev)->xcp_mgr->funcs->update_partition_sched_list(adev) : 0) + +static inline int amdgpu_xcp_get_num_xcp(struct amdgpu_xcp_mgr *xcp_mgr) +{ + if (!xcp_mgr) + return 1; + else + return xcp_mgr->num_xcps; +} + +static inline struct amdgpu_xcp * +amdgpu_get_next_xcp(struct amdgpu_xcp_mgr *xcp_mgr, int *from) +{ + if (!xcp_mgr) + return NULL; + + while (*from < MAX_XCP) { + if (xcp_mgr->xcp[*from].valid) + return &xcp_mgr->xcp[*from]; + ++(*from); + } + + return NULL; +} + +#define for_each_xcp(xcp_mgr, xcp, i) \ + for (i = 0, xcp = amdgpu_get_next_xcp(xcp_mgr, &i); xcp; \ + xcp = amdgpu_get_next_xcp(xcp_mgr, &i)) + +#endif |