From: Felix Kuehling <Felix.Kuehling@amd.com> To: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: alex.sierra@amd.com, philip.yang@amd.com Subject: [PATCH 15/35] drm/amdkfd: add xnack enabled flag to kfd_process Date: Wed, 6 Jan 2021 22:01:07 -0500 [thread overview] Message-ID: <20210107030127.20393-16-Felix.Kuehling@amd.com> (raw) In-Reply-To: <20210107030127.20393-1-Felix.Kuehling@amd.com> From: Alex Sierra <alex.sierra@amd.com> This flag is useful at cpu invalidation page table decision. Between select queue eviction or page fault. Signed-off-by: Alex Sierra <alex.sierra@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> --- drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 4 +++ drivers/gpu/drm/amd/amdkfd/kfd_process.c | 36 ++++++++++++++++++++++++ 2 files changed, 40 insertions(+) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index f1e95773e19b..7a4b4b6dcf32 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -821,6 +821,8 @@ struct kfd_process { /* shared virtual memory registered by this process */ struct svm_range_list svms; + + bool xnack_enabled; }; #define KFD_PROCESS_TABLE_SIZE 5 /* bits: 32 entries */ @@ -874,6 +876,8 @@ struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev, struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev, struct kfd_process *p); +bool kfd_process_xnack_supported(struct kfd_process *p); + int kfd_reserved_mem_mmap(struct kfd_dev *dev, struct kfd_process *process, struct vm_area_struct *vma); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index 0f31538b2a91..f7a50a364d78 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -1157,6 +1157,39 @@ static int kfd_process_device_init_cwsr_dgpu(struct kfd_process_device *pdd) return 0; } +bool kfd_process_xnack_supported(struct kfd_process *p) +{ + int i; + + /* On most GFXv9 GPUs, the retry mode in the SQ must match the + * boot time retry setting. Mixing processes with different + * XNACK/retry settings can hang the GPU. + * + * Different GPUs can have different noretry settings depending + * on HW bugs or limitations. We need to find at least one + * XNACK mode for this process that's compatible with all GPUs. + * Fortunately GPUs with retry enabled (noretry=0) can run code + * built for XNACK-off. On GFXv9 it may perform slower. + * + * Therefore applications built for XNACK-off can always be + * supported and will be our fallback if any GPU does not + * support retry. + */ + for (i = 0; i < p->n_pdds; i++) { + struct kfd_dev *dev = p->pdds[i]->dev; + + /* Only consider GFXv9 and higher GPUs. Older GPUs don't + * support the SVM APIs and don't need to be considered + * for the XNACK mode selection. + */ + if (dev->device_info->asic_family >= CHIP_VEGA10 && + dev->noretry) + return false; + } + + return true; +} + /* * On return the kfd_process is fully operational and will be freed when the * mm is released @@ -1194,6 +1227,9 @@ static struct kfd_process *create_process(const struct task_struct *thread) if (err != 0) goto err_init_apertures; + /* Check XNACK support after PDDs are created in kfd_init_apertures */ + process->xnack_enabled = kfd_process_xnack_supported(process); + err = svm_range_list_init(process); if (err) goto err_init_svm_range_list; -- 2.29.2 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
WARNING: multiple messages have this Message-ID (diff)
From: Felix Kuehling <Felix.Kuehling@amd.com> To: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: alex.sierra@amd.com, philip.yang@amd.com Subject: [PATCH 15/35] drm/amdkfd: add xnack enabled flag to kfd_process Date: Wed, 6 Jan 2021 22:01:07 -0500 [thread overview] Message-ID: <20210107030127.20393-16-Felix.Kuehling@amd.com> (raw) In-Reply-To: <20210107030127.20393-1-Felix.Kuehling@amd.com> From: Alex Sierra <alex.sierra@amd.com> This flag is useful at cpu invalidation page table decision. Between select queue eviction or page fault. Signed-off-by: Alex Sierra <alex.sierra@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> --- drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 4 +++ drivers/gpu/drm/amd/amdkfd/kfd_process.c | 36 ++++++++++++++++++++++++ 2 files changed, 40 insertions(+) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index f1e95773e19b..7a4b4b6dcf32 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -821,6 +821,8 @@ struct kfd_process { /* shared virtual memory registered by this process */ struct svm_range_list svms; + + bool xnack_enabled; }; #define KFD_PROCESS_TABLE_SIZE 5 /* bits: 32 entries */ @@ -874,6 +876,8 @@ struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev, struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev, struct kfd_process *p); +bool kfd_process_xnack_supported(struct kfd_process *p); + int kfd_reserved_mem_mmap(struct kfd_dev *dev, struct kfd_process *process, struct vm_area_struct *vma); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index 0f31538b2a91..f7a50a364d78 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -1157,6 +1157,39 @@ static int kfd_process_device_init_cwsr_dgpu(struct kfd_process_device *pdd) return 0; } +bool kfd_process_xnack_supported(struct kfd_process *p) +{ + int i; + + /* On most GFXv9 GPUs, the retry mode in the SQ must match the + * boot time retry setting. Mixing processes with different + * XNACK/retry settings can hang the GPU. + * + * Different GPUs can have different noretry settings depending + * on HW bugs or limitations. We need to find at least one + * XNACK mode for this process that's compatible with all GPUs. + * Fortunately GPUs with retry enabled (noretry=0) can run code + * built for XNACK-off. On GFXv9 it may perform slower. + * + * Therefore applications built for XNACK-off can always be + * supported and will be our fallback if any GPU does not + * support retry. + */ + for (i = 0; i < p->n_pdds; i++) { + struct kfd_dev *dev = p->pdds[i]->dev; + + /* Only consider GFXv9 and higher GPUs. Older GPUs don't + * support the SVM APIs and don't need to be considered + * for the XNACK mode selection. + */ + if (dev->device_info->asic_family >= CHIP_VEGA10 && + dev->noretry) + return false; + } + + return true; +} + /* * On return the kfd_process is fully operational and will be freed when the * mm is released @@ -1194,6 +1227,9 @@ static struct kfd_process *create_process(const struct task_struct *thread) if (err != 0) goto err_init_apertures; + /* Check XNACK support after PDDs are created in kfd_init_apertures */ + process->xnack_enabled = kfd_process_xnack_supported(process); + err = svm_range_list_init(process); if (err) goto err_init_svm_range_list; -- 2.29.2 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx
next prev parent reply other threads:[~2021-01-07 3:03 UTC|newest] Thread overview: 168+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-07 3:00 [PATCH 00/35] Add HMM-based SVM memory manager to KFD Felix Kuehling 2021-01-07 3:00 ` Felix Kuehling 2021-01-07 3:00 ` [PATCH 01/35] drm/amdkfd: select kernel DEVICE_PRIVATE option Felix Kuehling 2021-01-07 3:00 ` Felix Kuehling 2021-01-07 3:00 ` [PATCH 02/35] drm/amdgpu: replace per_device_list by array Felix Kuehling 2021-01-07 3:00 ` Felix Kuehling 2021-01-07 3:00 ` [PATCH 03/35] drm/amdkfd: helper to convert gpu id and idx Felix Kuehling 2021-01-07 3:00 ` Felix Kuehling 2021-01-07 3:00 ` [PATCH 04/35] drm/amdkfd: add svm ioctl API Felix Kuehling 2021-01-07 3:00 ` Felix Kuehling 2021-01-07 3:00 ` [PATCH 05/35] drm/amdkfd: Add SVM API support capability bits Felix Kuehling 2021-01-07 3:00 ` Felix Kuehling 2021-01-07 3:00 ` [PATCH 06/35] drm/amdkfd: register svm range Felix Kuehling 2021-01-07 3:00 ` Felix Kuehling 2021-01-07 3:00 ` [PATCH 07/35] drm/amdkfd: add svm ioctl GET_ATTR op Felix Kuehling 2021-01-07 3:00 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 08/35] drm/amdgpu: add common HMM get pages function Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 10:53 ` Christian König 2021-01-07 10:53 ` Christian König 2021-01-07 3:01 ` [PATCH 09/35] drm/amdkfd: validate svm range system memory Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 10/35] drm/amdkfd: register overlap system memory range Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 11/35] drm/amdkfd: deregister svm range Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 12/35] drm/amdgpu: export vm update mapping interface Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 10:54 ` Christian König 2021-01-07 10:54 ` Christian König 2021-01-07 3:01 ` [PATCH 13/35] drm/amdkfd: map svm range to GPUs Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 14/35] drm/amdkfd: svm range eviction and restore Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling [this message] 2021-01-07 3:01 ` [PATCH 15/35] drm/amdkfd: add xnack enabled flag to kfd_process Felix Kuehling 2021-01-07 3:01 ` [PATCH 16/35] drm/amdkfd: add ioctl to configure and query xnack retries Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 17/35] drm/amdkfd: register HMM device private zone Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-03-01 8:32 ` Daniel Vetter 2021-03-01 8:32 ` Daniel Vetter 2021-03-01 8:46 ` Thomas Hellström (Intel) 2021-03-01 8:46 ` Thomas Hellström (Intel) 2021-03-01 8:58 ` Daniel Vetter 2021-03-01 8:58 ` Daniel Vetter 2021-03-01 9:30 ` Thomas Hellström (Intel) 2021-03-01 9:30 ` Thomas Hellström (Intel) 2021-03-04 17:58 ` Felix Kuehling 2021-03-04 17:58 ` Felix Kuehling 2021-03-11 12:24 ` Thomas Hellström (Intel) 2021-03-11 12:24 ` Thomas Hellström (Intel) 2021-01-07 3:01 ` [PATCH 18/35] drm/amdkfd: validate vram svm range from TTM Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 19/35] drm/amdkfd: support xgmi same hive mapping Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 20/35] drm/amdkfd: copy memory through gart table Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 21/35] drm/amdkfd: HMM migrate ram to vram Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 22/35] drm/amdkfd: HMM migrate vram to ram Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 23/35] drm/amdkfd: invalidate tables on page retry fault Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 24/35] drm/amdkfd: page table restore through svm API Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 25/35] drm/amdkfd: SVM API call to restore page tables Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 26/35] drm/amdkfd: add svm_bo reference for eviction fence Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 27/35] drm/amdgpu: add param bit flag to create SVM BOs Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 28/35] drm/amdkfd: add svm_bo eviction mechanism support Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 29/35] drm/amdgpu: svm bo enable_signal call condition Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 10:56 ` Christian König 2021-01-07 10:56 ` Christian König 2021-01-07 16:16 ` Felix Kuehling 2021-01-07 16:16 ` Felix Kuehling 2021-01-07 16:28 ` Christian König 2021-01-07 16:28 ` Christian König 2021-01-07 16:53 ` Felix Kuehling 2021-01-07 16:53 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 30/35] drm/amdgpu: add svm_bo eviction to enable_signal cb Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 31/35] drm/amdgpu: reserve fence slot to update page table Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 10:57 ` Christian König 2021-01-07 10:57 ` Christian König 2021-01-07 3:01 ` [PATCH 32/35] drm/amdgpu: enable retry fault wptr overflow Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 11:01 ` Christian König 2021-01-07 11:01 ` Christian König 2021-01-07 3:01 ` [PATCH 33/35] drm/amdkfd: refine migration policy with xnack on Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 34/35] drm/amdkfd: add svm range validate timestamp Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 3:01 ` [PATCH 35/35] drm/amdkfd: multiple gpu migrate vram to vram Felix Kuehling 2021-01-07 3:01 ` Felix Kuehling 2021-01-07 9:23 ` [PATCH 00/35] Add HMM-based SVM memory manager to KFD Daniel Vetter 2021-01-07 9:23 ` Daniel Vetter 2021-01-07 16:25 ` Felix Kuehling 2021-01-07 16:25 ` Felix Kuehling 2021-01-08 14:40 ` Daniel Vetter 2021-01-08 14:40 ` Daniel Vetter 2021-01-08 14:45 ` Christian König 2021-01-08 14:45 ` Christian König 2021-01-08 15:58 ` Felix Kuehling 2021-01-08 15:58 ` Felix Kuehling 2021-01-08 16:06 ` Daniel Vetter 2021-01-08 16:06 ` Daniel Vetter 2021-01-08 16:36 ` Felix Kuehling 2021-01-08 16:36 ` Felix Kuehling 2021-01-08 16:53 ` Daniel Vetter 2021-01-08 16:53 ` Daniel Vetter 2021-01-08 17:56 ` Felix Kuehling 2021-01-08 17:56 ` Felix Kuehling 2021-01-11 16:29 ` Daniel Vetter 2021-01-11 16:29 ` Daniel Vetter 2021-01-14 5:34 ` Felix Kuehling 2021-01-14 5:34 ` Felix Kuehling 2021-01-14 12:19 ` Christian König 2021-01-14 12:19 ` Christian König 2021-01-13 16:56 ` Jerome Glisse 2021-01-13 16:56 ` Jerome Glisse 2021-01-13 20:31 ` Daniel Vetter 2021-01-13 20:31 ` Daniel Vetter 2021-01-14 3:27 ` Jerome Glisse 2021-01-14 3:27 ` Jerome Glisse 2021-01-14 9:26 ` Daniel Vetter 2021-01-14 9:26 ` Daniel Vetter 2021-01-14 10:39 ` Daniel Vetter 2021-01-14 10:39 ` Daniel Vetter 2021-01-14 10:49 ` Christian König 2021-01-14 10:49 ` Christian König 2021-01-14 11:52 ` Daniel Vetter 2021-01-14 11:52 ` Daniel Vetter 2021-01-14 13:37 ` HMM fence (was Re: [PATCH 00/35] Add HMM-based SVM memory manager to KFD) Christian König 2021-01-14 13:37 ` Christian König 2021-01-14 13:57 ` Daniel Vetter 2021-01-14 13:57 ` Daniel Vetter 2021-01-14 14:13 ` Christian König 2021-01-14 14:13 ` Christian König 2021-01-14 14:23 ` Daniel Vetter 2021-01-14 14:23 ` Daniel Vetter 2021-01-14 15:08 ` Christian König 2021-01-14 15:08 ` Christian König 2021-01-14 15:40 ` Daniel Vetter 2021-01-14 15:40 ` Daniel Vetter 2021-01-14 16:01 ` Christian König 2021-01-14 16:01 ` Christian König 2021-01-14 16:36 ` Daniel Vetter 2021-01-14 16:36 ` Daniel Vetter 2021-01-14 19:08 ` Christian König 2021-01-14 19:08 ` Christian König 2021-01-14 20:09 ` Daniel Vetter 2021-01-14 20:09 ` Daniel Vetter 2021-01-14 16:51 ` Jerome Glisse 2021-01-14 16:51 ` Jerome Glisse 2021-01-14 21:13 ` Felix Kuehling 2021-01-14 21:13 ` Felix Kuehling 2021-01-15 7:47 ` Christian König 2021-01-15 7:47 ` Christian König 2021-01-13 16:47 ` [PATCH 00/35] Add HMM-based SVM memory manager to KFD Jerome Glisse 2021-01-13 16:47 ` Jerome Glisse 2021-01-14 0:06 ` Felix Kuehling 2021-01-14 0:06 ` Felix Kuehling
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