From nobody Sun Feb 8 08:47:47 2026 Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E34243597C for ; Wed, 18 Dec 2024 18:19:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.112 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734545962; cv=pass; b=PEqhhtE8tiaFnRrDFyF1nXx104VzDVYbT6UWpUU8dbXz7Xmyl9vEyDV5L1Or5UAwc55YxetOCew/+7PI7PKx/8+nG7TPMpT6srwjXlB3YedOPZG2SzNr9qa6AVG++nMHzHWI426/p+Fr/ndgPePAiEWpBXSIy8qt+OhijlEOF6c= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734545962; c=relaxed/simple; bh=7B/XXlt3T6vmyUnJIZ4g5rByMKH/tlLXop32pAgU+hg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=vCcoEV4VIcyej79AJJnxiTLNV9LVotvCnpPEybFETnT9KFVd3quVlzVzAgrLsn0l7ldhLKtXiexkEiqPuNwvPa0Zkq6x11sECJNdLPxCL3H65O1M+U07iBTdVz88mMy0/V8zYKThQz46Cg24+nZDYFml++mYHbNyN9bsSNdmFmw= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=adrian.larumbe@collabora.com header.b=Ke69zk6A; arc=pass smtp.client-ip=136.143.188.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=collabora.com header.i=adrian.larumbe@collabora.com header.b="Ke69zk6A" ARC-Seal: i=1; a=rsa-sha256; t=1734545946; cv=none; d=zohomail.com; s=zohoarc; b=MnbLXqwGbzZnE9drtU26DFyb0xw/eua9xvVgWkvNXJkLeWWz66Gfzf49XqUj1QX1l7mfnbIPUSGR/vI6W39oPSBUVDJxGpbhRE8GBEyYHXIbWkkN3bhxZ3NOIHY3CIIZHbym7ZP13Dj2ozHtYgwNEYK9NA6Y/cBpso9KdEhAXZg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1734545946; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=i2Qm9u9FUO0KbG26hke264ZJ0Oq1Pw9HXsupbnIJhBw=; b=gw2mpUrUReA/8oAOAwPTSzqazwm8GOAD1eL2e23Z9o1FLeS95aX+1XSLdlTNXtx09nGhFmjd00TXPhPx+bRRFk3QIT3iDZXFJsuOHXA4SzjQBr0iNFTBWHWUAX2Rn4739DZ4hsmJ/RahkvRxwROsUa6eP5wRBK6OrxedJBQouaA= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=adrian.larumbe@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1734545946; s=zohomail; d=collabora.com; i=adrian.larumbe@collabora.com; h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-ID:In-Reply-To:References:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Reply-To; bh=i2Qm9u9FUO0KbG26hke264ZJ0Oq1Pw9HXsupbnIJhBw=; b=Ke69zk6AiRJtY2nFFPDt6BaTOG+u8HSU2H62nDaCq3kGpK5RAtoEy1VMHfZ2XxBB /eZMqsH6YekNtM1NbFV8XN1yJqB8Nqmmsz5TOEATLxuh7G7al3fzQzF9B4dGDHNcx4k 848h2XIquNoJWxgrkSstpLohDCniF0Hhl1Yy8mDg= Received: by mx.zohomail.com with SMTPS id 173454594452326.99884982888068; Wed, 18 Dec 2024 10:19:04 -0800 (PST) From: =?UTF-8?q?Adri=C3=A1n=20Mart=C3=ADnez=20Larumbe?= To: Boris Brezillon , Steven Price , Liviu Dudau , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: Cc:kernel@collabora.com, =?UTF-8?q?Adri=C3=A1n=20Larumbe?= , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 1/2] drm/panthor: Expose size of driver internal BO's over fdinfo Date: Thu, 19 Dec 2024 02:18:41 +0800 Message-ID: <20241218181844.886043-2-adrian.larumbe@collabora.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241218181844.886043-1-adrian.larumbe@collabora.com> References: <20241218181844.886043-1-adrian.larumbe@collabora.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable From: Adri=C3=A1n Larumbe This will display the sizes of kenrel BO's bound to an open file, which are otherwise not exposed to UM through a handle. The sizes recorded are as follows: - Per group: suspend buffer, protm-suspend buffer, syncobjcs - Per queue: ringbuffer, profiling slots, firmware interface - For all heaps in all heap pools across all VM's bound to an open file, record size of all heap chuks, and for each pool the gpu_context BO too. This does not record the size of FW regions, as these aren't bound to a specific open file and remain active through the whole life of the driver. Signed-off-by: Adri=C3=A1n Larumbe Reviewed-by: Liviu Dudau Reviewed-by: Mihail Atanassov Reviewed-by: Steven Price --- drivers/gpu/drm/panthor/panthor_drv.c | 12 ++++++ drivers/gpu/drm/panthor/panthor_heap.c | 26 +++++++++++++ drivers/gpu/drm/panthor/panthor_heap.h | 2 + drivers/gpu/drm/panthor/panthor_mmu.c | 35 +++++++++++++++++ drivers/gpu/drm/panthor/panthor_mmu.h | 4 ++ drivers/gpu/drm/panthor/panthor_sched.c | 52 ++++++++++++++++++++++++- drivers/gpu/drm/panthor/panthor_sched.h | 4 ++ 7 files changed, 134 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/panthor/panthor_drv.c b/drivers/gpu/drm/pantho= r/panthor_drv.c index d5dcd3d1b33a..277babcdae12 100644 --- a/drivers/gpu/drm/panthor/panthor_drv.c +++ b/drivers/gpu/drm/panthor/panthor_drv.c @@ -1457,12 +1457,24 @@ static void panthor_gpu_show_fdinfo(struct panthor_= device *ptdev, drm_printf(p, "drm-curfreq-panthor:\t%lu Hz\n", ptdev->current_frequency); } =20 +static void panthor_show_internal_memory_stats(struct drm_printer *p, stru= ct drm_file *file) +{ + struct panthor_file *pfile =3D file->driver_priv; + struct drm_memory_stats status =3D {0}; + + panthor_group_kbo_sizes(pfile, &status); + panthor_vm_heaps_sizes(pfile, &status); + + drm_print_memory_stats(p, &status, DRM_GEM_OBJECT_RESIDENT, "internal"); +} + static void panthor_show_fdinfo(struct drm_printer *p, struct drm_file *fi= le) { struct drm_device *dev =3D file->minor->dev; struct panthor_device *ptdev =3D container_of(dev, struct panthor_device,= base); =20 panthor_gpu_show_fdinfo(ptdev, file->driver_priv, p); + panthor_show_internal_memory_stats(p, file); =20 drm_show_memory_stats(p, file); } diff --git a/drivers/gpu/drm/panthor/panthor_heap.c b/drivers/gpu/drm/panth= or/panthor_heap.c index 3796a9eb22af..49e426fc2a31 100644 --- a/drivers/gpu/drm/panthor/panthor_heap.c +++ b/drivers/gpu/drm/panthor/panthor_heap.c @@ -603,3 +603,29 @@ void panthor_heap_pool_destroy(struct panthor_heap_poo= l *pool) =20 panthor_heap_pool_put(pool); } + +/** + * panthor_heap_pool_size() - Calculate size of all chunks across all heap= s in a pool + * @pool: Pool whose total chunk size to calculate. + * + * This function adds the size of all heap chunks across all heaps in the + * argument pool. It also adds the size of the gpu contexts kernel bo. + * It is meant to be used by fdinfo for displaying the size of internal + * driver BO's that aren't exposed to userspace through a GEM handle. + * + */ +size_t panthor_heap_pool_size(struct panthor_heap_pool *pool) +{ + struct panthor_heap *heap; + unsigned long i; + size_t size =3D 0; + + down_read(&pool->lock); + xa_for_each(&pool->xa, i, heap) + size +=3D heap->chunk_size * heap->chunk_count; + up_write(&pool->lock); + + size +=3D pool->gpu_contexts->obj->size; + + return size; +} diff --git a/drivers/gpu/drm/panthor/panthor_heap.h b/drivers/gpu/drm/panth= or/panthor_heap.h index 25a5f2bba445..e3358d4e8edb 100644 --- a/drivers/gpu/drm/panthor/panthor_heap.h +++ b/drivers/gpu/drm/panthor/panthor_heap.h @@ -27,6 +27,8 @@ struct panthor_heap_pool * panthor_heap_pool_get(struct panthor_heap_pool *pool); void panthor_heap_pool_put(struct panthor_heap_pool *pool); =20 +size_t panthor_heap_pool_size(struct panthor_heap_pool *pool); + int panthor_heap_grow(struct panthor_heap_pool *pool, u64 heap_gpu_va, u32 renderpasses_in_flight, diff --git a/drivers/gpu/drm/panthor/panthor_mmu.c b/drivers/gpu/drm/pantho= r/panthor_mmu.c index c39e3eb1c15d..51f6e66df3f5 100644 --- a/drivers/gpu/drm/panthor/panthor_mmu.c +++ b/drivers/gpu/drm/panthor/panthor_mmu.c @@ -1941,6 +1941,41 @@ struct panthor_heap_pool *panthor_vm_get_heap_pool(s= truct panthor_vm *vm, bool c return pool; } =20 +/** + * panthor_vm_heaps_size() - Calculate size of all heap chunks across all + * heaps over all the heap pools in a VM + * @pfile: File. + * @status: Memory status to be updated. + * + * Calculate all heap chunk sizes in all heap pools bound to a VM. If the = VM + * is active, record the size as active as well. + */ +void panthor_vm_heaps_sizes(struct panthor_file *pfile, struct drm_memory_= stats *status) +{ + struct panthor_vm *vm; + unsigned long i; + + if (!pfile->vms) + return; + + xa_for_each(&pfile->vms->xa, i, vm) { + size_t size; + + mutex_lock(&vm->heaps.lock); + if (!vm->heaps.pool) { + mutex_unlock(&vm->heaps.lock); + continue; + } + size =3D panthor_heap_pool_size(vm->heaps.pool); + mutex_unlock(&vm->heaps.lock); + + status->resident +=3D size; + status->private +=3D size; + if (vm->as.id >=3D 0) + status->active +=3D size; + } +} + static u64 mair_to_memattr(u64 mair, bool coherent) { u64 memattr =3D 0; diff --git a/drivers/gpu/drm/panthor/panthor_mmu.h b/drivers/gpu/drm/pantho= r/panthor_mmu.h index 8d21e83d8aba..2aeb2522cdfa 100644 --- a/drivers/gpu/drm/panthor/panthor_mmu.h +++ b/drivers/gpu/drm/panthor/panthor_mmu.h @@ -5,10 +5,12 @@ #ifndef __PANTHOR_MMU_H__ #define __PANTHOR_MMU_H__ =20 +#include #include =20 struct drm_exec; struct drm_sched_job; +struct drm_memory_stats; struct panthor_gem_object; struct panthor_heap_pool; struct panthor_vm; @@ -37,6 +39,8 @@ int panthor_vm_flush_all(struct panthor_vm *vm); struct panthor_heap_pool * panthor_vm_get_heap_pool(struct panthor_vm *vm, bool create); =20 +void panthor_vm_heaps_sizes(struct panthor_file *pfile, struct drm_memory_= stats *status); + struct panthor_vm *panthor_vm_get(struct panthor_vm *vm); void panthor_vm_put(struct panthor_vm *vm); struct panthor_vm *panthor_vm_create(struct panthor_device *ptdev, bool fo= r_mcu, diff --git a/drivers/gpu/drm/panthor/panthor_sched.c b/drivers/gpu/drm/pant= hor/panthor_sched.c index 77b184c3fb0c..bb4b3ffadcd1 100644 --- a/drivers/gpu/drm/panthor/panthor_sched.c +++ b/drivers/gpu/drm/panthor/panthor_sched.c @@ -628,7 +628,7 @@ struct panthor_group { */ struct panthor_kernel_bo *syncobjs; =20 - /** @fdinfo: Per-file total cycle and timestamp values reference. */ + /** @fdinfo: Per-group total cycle and timestamp values and kernel BO siz= es. */ struct { /** @data: Total sampled values for jobs in queues from this group. */ struct panthor_gpu_usage data; @@ -638,6 +638,9 @@ struct panthor_group { * and job post-completion processing function */ struct mutex lock; + + /** @bo_sizes: Aggregate size of private kernel BO's held by the group. = */ + size_t kbo_sizes; } fdinfo; =20 /** @state: Group state. */ @@ -3381,6 +3384,29 @@ group_create_queue(struct panthor_group *group, return ERR_PTR(ret); } =20 +static void add_group_kbo_sizes(struct panthor_device *ptdev, + struct panthor_group *group) +{ + struct panthor_queue *queue; + int i; + + if (drm_WARN_ON(&ptdev->base, IS_ERR_OR_NULL(group))) + return; + if (drm_WARN_ON(&ptdev->base, ptdev !=3D group->ptdev)) + return; + + group->fdinfo.kbo_sizes +=3D group->suspend_buf->obj->size; + group->fdinfo.kbo_sizes +=3D group->protm_suspend_buf->obj->size; + group->fdinfo.kbo_sizes +=3D group->syncobjs->obj->size; + + for (i =3D 0; i < group->queue_count; i++) { + queue =3D group->queues[i]; + group->fdinfo.kbo_sizes +=3D queue->ringbuf->obj->size; + group->fdinfo.kbo_sizes +=3D queue->iface.mem->obj->size; + group->fdinfo.kbo_sizes +=3D queue->profiling.slots->obj->size; + } +} + #define MAX_GROUPS_PER_POOL 128 =20 int panthor_group_create(struct panthor_file *pfile, @@ -3505,6 +3531,7 @@ int panthor_group_create(struct panthor_file *pfile, } mutex_unlock(&sched->reset.lock); =20 + add_group_kbo_sizes(group->ptdev, group); mutex_init(&group->fdinfo.lock); =20 return gid; @@ -3624,6 +3651,29 @@ void panthor_group_pool_destroy(struct panthor_file = *pfile) pfile->groups =3D NULL; } =20 +/** + * panthor_group_kbo_sizes() - Retrieve aggregate size of all private kern= el BO's + * belonging to all the groups owned by an open Panthor file + * @pfile: File. + * @status: Memory status to be updated. + * + */ +void panthor_group_kbo_sizes(struct panthor_file *pfile, struct drm_memory= _stats *status) +{ + struct panthor_group_pool *gpool =3D pfile->groups; + struct panthor_group *group; + unsigned long i; + + if (IS_ERR_OR_NULL(gpool)) + return; + xa_for_each(&gpool->xa, i, group) { + status->resident +=3D group->fdinfo.kbo_sizes; + status->private +=3D group->fdinfo.kbo_sizes; + if (group->csg_id >=3D 0) + status->active +=3D group->fdinfo.kbo_sizes; + } +} + static void job_release(struct kref *ref) { struct panthor_job *job =3D container_of(ref, struct panthor_job, refcoun= t); diff --git a/drivers/gpu/drm/panthor/panthor_sched.h b/drivers/gpu/drm/pant= hor/panthor_sched.h index 5ae6b4bde7c5..4dd6a7fc8fbd 100644 --- a/drivers/gpu/drm/panthor/panthor_sched.h +++ b/drivers/gpu/drm/panthor/panthor_sched.h @@ -4,11 +4,14 @@ #ifndef __PANTHOR_SCHED_H__ #define __PANTHOR_SCHED_H__ =20 +#include + struct drm_exec; struct dma_fence; struct drm_file; struct drm_gem_object; struct drm_sched_job; +struct drm_memory_stats; struct drm_panthor_group_create; struct drm_panthor_queue_create; struct drm_panthor_group_get_state; @@ -36,6 +39,7 @@ void panthor_job_update_resvs(struct drm_exec *exec, stru= ct drm_sched_job *job); =20 int panthor_group_pool_create(struct panthor_file *pfile); void panthor_group_pool_destroy(struct panthor_file *pfile); 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charset="utf-8" Content-Transfer-Encoding: quoted-printable From: Adri=C3=A1n Larumbe A previous commit enabled display of driver-internal kernel BO sizes through the device file's fdinfo interface. Expand the description of the relevant driver-specific key:value pairs with the definitions of the new drm-*-internal ones. Signed-off-by: Adri=C3=A1n Larumbe Reviewed-by: Mihail Atanassov Reviewed-by: Liviu Dudau Reviewed-by: Steven Price --- Documentation/gpu/panthor.rst | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/Documentation/gpu/panthor.rst b/Documentation/gpu/panthor.rst index 3f8979fa2b86..23aa3d67c9d2 100644 --- a/Documentation/gpu/panthor.rst +++ b/Documentation/gpu/panthor.rst @@ -26,6 +26,10 @@ the currently possible format options: drm-cycles-panthor: 94439687187 drm-maxfreq-panthor: 1000000000 Hz drm-curfreq-panthor: 1000000000 Hz + drm-total-internal: 10396 KiB + drm-shared-internal: 0 + drm-active-internal: 10396 KiB + drm-resident-internal: 10396 KiB drm-total-memory: 16480 KiB drm-shared-memory: 0 drm-active-memory: 16200 KiB @@ -44,3 +48,13 @@ driver by writing into the appropriate sysfs node:: =20 Where `N` is a bit mask where cycle and timestamp sampling are respectively enabled by the first and second bits. + +Possible `drm-*-internal` keys are: `total`, `active`, `resident` and `sha= red`. +These values convey the sizes of the internal driver-owned shmem BO's that +aren't exposed to user-space through a DRM handle, like queue ring buffers, +sync object arrays and heap chunks. Because they are all allocated and pin= ned +at creation time, `drm-resident-internal` and `drm-total-internal` should = always +be equal. `drm-active-internal` shows the size of kernel BO's associated w= ith +VM's and groups currently being scheduled for execution by the GPU. +`drm-shared-internal` is unused at present, but in the future it might sta= nd for +the size of executable FW regions, since they do not belong to an open fil= e context. --=20 2.47.0