[PATCH] drm/ttm: Add DMA map/unmap tracepoint (v3)
Christian König
deathsimple at vodafone.de
Sat Aug 19 08:40:54 UTC 2017
Give it time till Monday evening and if nobody objected till then just
push it to our internal servers.
Christian.
Am 19.08.2017 um 00:36 schrieb Tom St Denis:
> Hi Christian,
>
> Should I wait for comments on dri-devel or can I push the TTM trace
> patches to our stg-4.12 already?
>
> Cheers,
> Tom
>
> On 18/08/17 09:45 AM, Christian König wrote:
>> Am 18.08.2017 um 15:22 schrieb Tom St Denis:
>>> Also exports two functions that vendor drivers can call
>>> to trace DMA mappings. This is meant to help translate
>>> IOMMU mappings of bus addresses back to physical pages.
>>>
>>> Used by the umr amdgpu debugger for instance.
>>>
>>> Signed-off-by: Tom St Denis <tom.stdenis at amd.com>
>>
>> Reviewed-by: Christian König <christian.koenig at amd.com>.
>>
>> Since it is TTM you need to send it to the drm mailing list as well.
>>
>> Christian.
>>
>>>
>>> (v2): Use dev_name() to get PCI path instead.
>>> (v3): Use correct types for dma/phys addresses
>>> ---
>>> drivers/gpu/drm/ttm/Makefile | 4 +-
>>> drivers/gpu/drm/ttm/ttm_debug.c | 75
>>> ++++++++++++++++++++++++++++++
>>> drivers/gpu/drm/ttm/ttm_trace.h | 87
>>> +++++++++++++++++++++++++++++++++++
>>> drivers/gpu/drm/ttm/ttm_tracepoints.c | 46 ++++++++++++++++++
>>> include/drm/ttm/ttm_debug.h | 31 +++++++++++++
>>> 5 files changed, 241 insertions(+), 2 deletions(-)
>>> create mode 100644 drivers/gpu/drm/ttm/ttm_debug.c
>>> create mode 100644 drivers/gpu/drm/ttm/ttm_trace.h
>>> create mode 100644 drivers/gpu/drm/ttm/ttm_tracepoints.c
>>> create mode 100644 include/drm/ttm/ttm_debug.h
>>>
>>> diff --git a/drivers/gpu/drm/ttm/Makefile
>>> b/drivers/gpu/drm/ttm/Makefile
>>> index f92325800f8a..fd3da00c0bf2 100644
>>> --- a/drivers/gpu/drm/ttm/Makefile
>>> +++ b/drivers/gpu/drm/ttm/Makefile
>>> @@ -1,11 +1,11 @@
>>> #
>>> # Makefile for the drm device driver. This driver provides
>>> support for the
>>> -ccflags-y := -Iinclude/drm
>>> +ccflags-y := -Iinclude/drm -I$(src)/.
>>> ttm-y := ttm_memory.o ttm_tt.o ttm_bo.o \
>>> ttm_bo_util.o ttm_bo_vm.o ttm_module.o \
>>> ttm_object.o ttm_lock.o ttm_execbuf_util.o ttm_page_alloc.o \
>>> - ttm_bo_manager.o ttm_page_alloc_dma.o
>>> + ttm_bo_manager.o ttm_page_alloc_dma.o ttm_debug.o
>>> ttm_tracepoints.o
>>> ttm-$(CONFIG_AGP) += ttm_agp_backend.o
>>> obj-$(CONFIG_DRM_TTM) += ttm.o
>>> diff --git a/drivers/gpu/drm/ttm/ttm_debug.c
>>> b/drivers/gpu/drm/ttm/ttm_debug.c
>>> new file mode 100644
>>> index 000000000000..dd158c6ef90d
>>> --- /dev/null
>>> +++ b/drivers/gpu/drm/ttm/ttm_debug.c
>>> @@ -0,0 +1,75 @@
>>> +/**************************************************************************
>>>
>>> + *
>>> + * Copyright (c) 2017 Advanced Micro Devices, Inc.
>>> + * All Rights Reserved.
>>> + *
>>> + * 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, sub license, 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 (including
>>> the
>>> + * next paragraph) 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 NON-INFRINGEMENT. IN NO
>>> EVENT SHALL
>>> + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
>>> + *
>>> +
>>> **************************************************************************/
>>>
>>> +/*
>>> + * Authors: Tom St Denis <tom.stdenis at amd.com>
>>> + */
>>> +#include <linux/sched.h>
>>> +#include <linux/highmem.h>
>>> +#include <linux/pagemap.h>
>>> +#include <linux/shmem_fs.h>
>>> +#include <linux/file.h>
>>> +#include <linux/swap.h>
>>> +#include <linux/slab.h>
>>> +#include <linux/export.h>
>>> +#include <drm/drm_cache.h>
>>> +#include <drm/drm_mem_util.h>
>>> +#include <drm/ttm/ttm_module.h>
>>> +#include <drm/ttm/ttm_bo_driver.h>
>>> +#include <drm/ttm/ttm_placement.h>
>>> +#include <drm/ttm/ttm_page_alloc.h>
>>> +#include "ttm_trace.h"
>>> +
>>> +void ttm_trace_dma_map(struct device *dev, struct ttm_dma_tt *tt)
>>> +{
>>> + unsigned i;
>>> +
>>> + if (unlikely(trace_ttm_dma_map_enabled())) {
>>> + for (i = 0; i < tt->ttm.num_pages; i++) {
>>> + trace_ttm_dma_map(
>>> + dev,
>>> + tt->ttm.pages[i],
>>> + tt->dma_address[i]);
>>> + }
>>> + }
>>> +}
>>> +EXPORT_SYMBOL(ttm_trace_dma_map);
>>> +
>>> +void ttm_trace_dma_unmap(struct device *dev, struct ttm_dma_tt *tt)
>>> +{
>>> + unsigned i;
>>> +
>>> + if (unlikely(trace_ttm_dma_unmap_enabled())) {
>>> + for (i = 0; i < tt->ttm.num_pages; i++) {
>>> + trace_ttm_dma_unmap(
>>> + dev,
>>> + tt->ttm.pages[i],
>>> + tt->dma_address[i]);
>>> + }
>>> + }
>>> +}
>>> +EXPORT_SYMBOL(ttm_trace_dma_unmap);
>>> +
>>> diff --git a/drivers/gpu/drm/ttm/ttm_trace.h
>>> b/drivers/gpu/drm/ttm/ttm_trace.h
>>> new file mode 100644
>>> index 000000000000..23279b9b8e64
>>> --- /dev/null
>>> +++ b/drivers/gpu/drm/ttm/ttm_trace.h
>>> @@ -0,0 +1,87 @@
>>> +/**************************************************************************
>>>
>>> + *
>>> + * Copyright (c) 2017 Advanced Micro Devices, Inc.
>>> + * All Rights Reserved.
>>> + *
>>> + * 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, sub license, 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 (including
>>> the
>>> + * next paragraph) 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 NON-INFRINGEMENT. IN NO
>>> EVENT SHALL
>>> + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
>>> + *
>>> +
>>> **************************************************************************/
>>>
>>> +/*
>>> + * Authors: Tom St Denis <tom.stdenis at amd.com>
>>> + */
>>> +#if !defined(_TTM_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
>>> +#define _TTM_TRACE_H_
>>> +
>>> +#include <linux/stringify.h>
>>> +#include <linux/types.h>
>>> +#include <linux/tracepoint.h>
>>> +
>>> +#include <drm/drmP.h>
>>> +
>>> +#undef TRACE_SYSTEM
>>> +#define TRACE_SYSTEM ttm
>>> +#define TRACE_INCLUDE_FILE ttm_trace
>>> +
>>> +TRACE_EVENT(ttm_dma_map,
>>> + TP_PROTO(struct device *dev, struct page *page, dma_addr_t
>>> dma_address),
>>> + TP_ARGS(dev, page, dma_address),
>>> + TP_STRUCT__entry(
>>> + __string(device, dev_name(dev))
>>> + __field(dma_addr_t, dma)
>>> + __field(phys_addr_t, phys)
>>> + ),
>>> + TP_fast_assign(
>>> + __assign_str(device, dev_name(dev));
>>> + __entry->dma = dma_address;
>>> + __entry->phys = page_to_phys(page);
>>> + ),
>>> + TP_printk("%s: %pad => %pa",
>>> + __get_str(device),
>>> + &__entry->dma,
>>> + &__entry->phys)
>>> +);
>>> +
>>> +TRACE_EVENT(ttm_dma_unmap,
>>> + TP_PROTO(struct device *dev, struct page *page, dma_addr_t
>>> dma_address),
>>> + TP_ARGS(dev, page, dma_address),
>>> + TP_STRUCT__entry(
>>> + __string(device, dev_name(dev))
>>> + __field(dma_addr_t, dma)
>>> + __field(phys_addr_t, phys)
>>> + ),
>>> + TP_fast_assign(
>>> + __assign_str(device, dev_name(dev));
>>> + __entry->dma = dma_address;
>>> + __entry->phys = page_to_phys(page);
>>> + ),
>>> + TP_printk("%s: %pad => %pa",
>>> + __get_str(device),
>>> + &__entry->dma,
>>> + &__entry->phys)
>>> +);
>>> +
>>> +#endif
>>> +
>>> +/* This part must be outside protection */
>>> +#undef TRACE_INCLUDE_PATH
>>> +#define TRACE_INCLUDE_PATH .
>>> +#include <trace/define_trace.h>
>>> +
>>> diff --git a/drivers/gpu/drm/ttm/ttm_tracepoints.c
>>> b/drivers/gpu/drm/ttm/ttm_tracepoints.c
>>> new file mode 100644
>>> index 000000000000..c13b9f5b6496
>>> --- /dev/null
>>> +++ b/drivers/gpu/drm/ttm/ttm_tracepoints.c
>>> @@ -0,0 +1,46 @@
>>> +/**************************************************************************
>>>
>>> + *
>>> + * Copyright (c) 2017 Advanced Micro Devices, Inc.
>>> + * All Rights Reserved.
>>> + *
>>> + * 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, sub license, 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 (including
>>> the
>>> + * next paragraph) 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 NON-INFRINGEMENT. IN NO
>>> EVENT SHALL
>>> + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
>>> + *
>>> +
>>> **************************************************************************/
>>>
>>> +/*
>>> + * Authors: Tom St Denis <tom.stdenis at amd.com>
>>> + */
>>> +#include <linux/sched.h>
>>> +#include <linux/highmem.h>
>>> +#include <linux/pagemap.h>
>>> +#include <linux/shmem_fs.h>
>>> +#include <linux/file.h>
>>> +#include <linux/swap.h>
>>> +#include <linux/slab.h>
>>> +#include <linux/export.h>
>>> +#include <drm/drm_cache.h>
>>> +#include <drm/drm_mem_util.h>
>>> +#include <drm/ttm/ttm_module.h>
>>> +#include <drm/ttm/ttm_bo_driver.h>
>>> +#include <drm/ttm/ttm_placement.h>
>>> +#include <drm/ttm/ttm_page_alloc.h>
>>> +
>>> +#define CREATE_TRACE_POINTS
>>> +#include "ttm_trace.h"
>>> diff --git a/include/drm/ttm/ttm_debug.h b/include/drm/ttm/ttm_debug.h
>>> new file mode 100644
>>> index 000000000000..b5e460fa5086
>>> --- /dev/null
>>> +++ b/include/drm/ttm/ttm_debug.h
>>> @@ -0,0 +1,31 @@
>>> +/**************************************************************************
>>>
>>> + *
>>> + * Copyright (c) 2017 Advanced Micro Devices, Inc.
>>> + * All Rights Reserved.
>>> + *
>>> + * 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, sub license, 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 (including
>>> the
>>> + * next paragraph) 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 NON-INFRINGEMENT. IN NO
>>> EVENT SHALL
>>> + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
>>> + *
>>> +
>>> **************************************************************************/
>>>
>>> +/*
>>> + * Authors: Tom St Denis <tom.stdenis at amd.com>
>>> + */
>>> +extern void ttm_trace_dma_map(struct device *dev, struct ttm_dma_tt
>>> *tt);
>>> +extern void ttm_trace_dma_unmap(struct device *dev, struct
>>> ttm_dma_tt *tt);
>>
>>
>
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