diff options
author | Dave Airlie <airlied@redhat.com> | 2017-12-01 09:14:46 +1000 |
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committer | Dave Airlie <airlied@redhat.com> | 2017-12-01 09:14:46 +1000 |
commit | 662e70400721f7bcf3b689acfe418f745f76096b (patch) | |
tree | 9991783a1ef0af97480d9036186afa0cb15912db | |
parent | a42ea78f5b73d8aba9665ad34fb88e483f442f6f (diff) | |
parent | b4d085201d86af69cbda2214c6dafc0be240ef9f (diff) | |
download | linux-662e70400721f7bcf3b689acfe418f745f76096b.tar.bz2 |
Merge tag 'drm-amdkfd-fixes-2017-11-26' of git://people.freedesktop.org/~gabbayo/linux into drm-fixes
This is amdkfd pull request for -rc2. It contains three small fixes to the
CIK SDMA code, compilation error fix in kfd_ioctl.h and fix to accessing
a pointer after it was released.
* tag 'drm-amdkfd-fixes-2017-11-26' of git://people.freedesktop.org/~gabbayo/linux:
uapi: fix linux/kfd_ioctl.h userspace compilation errors
drm/amdkfd: fix amdkfd use-after-free GP fault
drm/amdkfd: Fix SDMA oversubsription handling
drm/amdkfd: Fix SDMA ring buffer size calculation
drm/amdgpu: Fix SDMA load/unload sequence on HWS disabled mode
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c | 47 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_module.c | 3 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c | 4 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c | 18 | ||||
-rw-r--r-- | include/uapi/linux/kfd_ioctl.h | 22 |
5 files changed, 67 insertions, 27 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c index 47d1c132ac40..1e3e9be7d77e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c @@ -379,29 +379,50 @@ static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd) { struct amdgpu_device *adev = get_amdgpu_device(kgd); struct cik_sdma_rlc_registers *m; + unsigned long end_jiffies; uint32_t sdma_base_addr; + uint32_t data; m = get_sdma_mqd(mqd); sdma_base_addr = get_sdma_base_addr(m); - WREG32(sdma_base_addr + mmSDMA0_RLC0_VIRTUAL_ADDR, - m->sdma_rlc_virtual_addr); + WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, + m->sdma_rlc_rb_cntl & (~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)); - WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE, - m->sdma_rlc_rb_base); + end_jiffies = msecs_to_jiffies(2000) + jiffies; + while (true) { + data = RREG32(sdma_base_addr + mmSDMA0_RLC0_CONTEXT_STATUS); + if (data & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK) + break; + if (time_after(jiffies, end_jiffies)) + return -ETIME; + usleep_range(500, 1000); + } + if (m->sdma_engine_id) { + data = RREG32(mmSDMA1_GFX_CONTEXT_CNTL); + data = REG_SET_FIELD(data, SDMA1_GFX_CONTEXT_CNTL, + RESUME_CTX, 0); + WREG32(mmSDMA1_GFX_CONTEXT_CNTL, data); + } else { + data = RREG32(mmSDMA0_GFX_CONTEXT_CNTL); + data = REG_SET_FIELD(data, SDMA0_GFX_CONTEXT_CNTL, + RESUME_CTX, 0); + WREG32(mmSDMA0_GFX_CONTEXT_CNTL, data); + } + WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, + m->sdma_rlc_doorbell); + WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR, 0); + WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR, 0); + WREG32(sdma_base_addr + mmSDMA0_RLC0_VIRTUAL_ADDR, + m->sdma_rlc_virtual_addr); + WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE, m->sdma_rlc_rb_base); WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE_HI, m->sdma_rlc_rb_base_hi); - WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_LO, m->sdma_rlc_rb_rptr_addr_lo); - WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_HI, m->sdma_rlc_rb_rptr_addr_hi); - - WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, - m->sdma_rlc_doorbell); - WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, m->sdma_rlc_rb_cntl); @@ -574,9 +595,9 @@ static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd, } WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, 0); - WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR, 0); - WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR, 0); - WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE, 0); + WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, + RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL) | + SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK); return 0; } diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_module.c b/drivers/gpu/drm/amd/amdkfd/kfd_module.c index 6c5a9cab55de..f744caeaee04 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_module.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_module.c @@ -24,6 +24,7 @@ #include <linux/sched.h> #include <linux/moduleparam.h> #include <linux/device.h> +#include <linux/printk.h> #include "kfd_priv.h" #define KFD_DRIVER_AUTHOR "AMD Inc. and others" @@ -132,7 +133,7 @@ static void __exit kfd_module_exit(void) kfd_process_destroy_wq(); kfd_topology_shutdown(); kfd_chardev_exit(); - dev_info(kfd_device, "Removed module\n"); + pr_info("amdkfd: Removed module\n"); } module_init(kfd_module_init); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c index 4859d263fa2a..4728fad3fd74 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c @@ -202,8 +202,8 @@ static int update_mqd_sdma(struct mqd_manager *mm, void *mqd, struct cik_sdma_rlc_registers *m; m = get_sdma_mqd(mqd); - m->sdma_rlc_rb_cntl = ffs(q->queue_size / sizeof(unsigned int)) << - SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT | + m->sdma_rlc_rb_cntl = (ffs(q->queue_size / sizeof(unsigned int)) - 1) + << SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT | q->vmid << SDMA0_RLC0_RB_CNTL__RB_VMID__SHIFT | 1 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT | 6 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT; diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c index 2bec902fc939..a3f1e62c60ba 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c @@ -191,6 +191,24 @@ int pqm_create_queue(struct process_queue_manager *pqm, switch (type) { case KFD_QUEUE_TYPE_SDMA: + if (dev->dqm->queue_count >= + CIK_SDMA_QUEUES_PER_ENGINE * CIK_SDMA_ENGINE_NUM) { + pr_err("Over-subscription is not allowed for SDMA.\n"); + retval = -EPERM; + goto err_create_queue; + } + + retval = create_cp_queue(pqm, dev, &q, properties, f, *qid); + if (retval != 0) + goto err_create_queue; + pqn->q = q; + pqn->kq = NULL; + retval = dev->dqm->ops.create_queue(dev->dqm, q, &pdd->qpd, + &q->properties.vmid); + pr_debug("DQM returned %d for create_queue\n", retval); + print_queue(q); + break; + case KFD_QUEUE_TYPE_COMPUTE: /* check if there is over subscription */ if ((sched_policy == KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION) && diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h index 731d0df722e3..6e80501368ae 100644 --- a/include/uapi/linux/kfd_ioctl.h +++ b/include/uapi/linux/kfd_ioctl.h @@ -233,29 +233,29 @@ struct kfd_ioctl_wait_events_args { }; struct kfd_ioctl_set_scratch_backing_va_args { - uint64_t va_addr; /* to KFD */ - uint32_t gpu_id; /* to KFD */ - uint32_t pad; + __u64 va_addr; /* to KFD */ + __u32 gpu_id; /* to KFD */ + __u32 pad; }; struct kfd_ioctl_get_tile_config_args { /* to KFD: pointer to tile array */ - uint64_t tile_config_ptr; + __u64 tile_config_ptr; /* to KFD: pointer to macro tile array */ - uint64_t macro_tile_config_ptr; + __u64 macro_tile_config_ptr; /* to KFD: array size allocated by user mode * from KFD: array size filled by kernel */ - uint32_t num_tile_configs; + __u32 num_tile_configs; /* to KFD: array size allocated by user mode * from KFD: array size filled by kernel */ - uint32_t num_macro_tile_configs; + __u32 num_macro_tile_configs; - uint32_t gpu_id; /* to KFD */ - uint32_t gb_addr_config; /* from KFD */ - uint32_t num_banks; /* from KFD */ - uint32_t num_ranks; /* from KFD */ + __u32 gpu_id; /* to KFD */ + __u32 gb_addr_config; /* from KFD */ + __u32 num_banks; /* from KFD */ + __u32 num_ranks; /* from KFD */ /* struct size can be extended later if needed * without breaking ABI compatibility */ |