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* [PATCH 01/15] drm/tegra: Map cmdbuf once for reloc processing
       [not found] <20191118103536.17675-1-daniel.vetter@ffwll.ch>
@ 2019-11-18 10:35 ` Daniel Vetter
  2019-11-25  9:58   ` Daniel Vetter
  2019-11-25 11:02   ` Thierry Reding
  2019-11-18 10:35 ` [PATCH 02/15] drm/tegra: Delete host1x_bo_ops->k(un)map Daniel Vetter
  2019-11-18 10:35 ` [PATCH 08/15] drm/tegra: Remove dma_buf->k(un)map Daniel Vetter
  2 siblings, 2 replies; 8+ messages in thread
From: Daniel Vetter @ 2019-11-18 10:35 UTC (permalink / raw)
  To: DRI Development
  Cc: linux-tegra, Daniel Vetter, Intel Graphics Development,
	Daniel Vetter

A few reasons to drop kmap:

- For native objects all we do is look at obj->vaddr anyway, so might
  as well not call functions for every page.

- Reloc-processing on dma-buf is ... questionable.

- Plus most dma-buf that bother kernel cpu mmaps give you at least
  vmap, much less kmaps. And all the ones relevant for arm-soc are
  again doing a obj->vaddr game anyway, there's no real kmap going on
  on arm it seems.

Plus this seems to be the only real in-tree user of dma_buf_kmap, and
I'd like to get rid of that.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: linux-tegra@vger.kernel.org
---
 drivers/gpu/host1x/job.c | 21 +++++++--------------
 1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c
index 25ca54de8fc5..60b2fedd0061 100644
--- a/drivers/gpu/host1x/job.c
+++ b/drivers/gpu/host1x/job.c
@@ -244,8 +244,7 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job)
 
 static int do_relocs(struct host1x_job *job, struct host1x_job_gather *g)
 {
-	u32 last_page = ~0;
-	void *cmdbuf_page_addr = NULL;
+	void *cmdbuf_addr = NULL;
 	struct host1x_bo *cmdbuf = g->bo;
 	unsigned int i;
 
@@ -267,28 +266,22 @@ static int do_relocs(struct host1x_job *job, struct host1x_job_gather *g)
 			goto patch_reloc;
 		}
 
-		if (last_page != reloc->cmdbuf.offset >> PAGE_SHIFT) {
-			if (cmdbuf_page_addr)
-				host1x_bo_kunmap(cmdbuf, last_page,
-						 cmdbuf_page_addr);
+		if (!cmdbuf_addr) {
+			cmdbuf_addr = host1x_bo_mmap(cmdbuf);
 
-			cmdbuf_page_addr = host1x_bo_kmap(cmdbuf,
-					reloc->cmdbuf.offset >> PAGE_SHIFT);
-			last_page = reloc->cmdbuf.offset >> PAGE_SHIFT;
-
-			if (unlikely(!cmdbuf_page_addr)) {
+			if (unlikely(!cmdbuf_addr)) {
 				pr_err("Could not map cmdbuf for relocation\n");
 				return -ENOMEM;
 			}
 		}
 
-		target = cmdbuf_page_addr + (reloc->cmdbuf.offset & ~PAGE_MASK);
+		target = cmdbuf_addr + reloc->cmdbuf.offset;
 patch_reloc:
 		*target = reloc_addr;
 	}
 
-	if (cmdbuf_page_addr)
-		host1x_bo_kunmap(cmdbuf, last_page, cmdbuf_page_addr);
+	if (cmdbuf_addr)
+		host1x_bo_munmap(cmdbuf, cmdbuf_addr);
 
 	return 0;
 }
-- 
2.24.0

_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH 02/15] drm/tegra: Delete host1x_bo_ops->k(un)map
       [not found] <20191118103536.17675-1-daniel.vetter@ffwll.ch>
  2019-11-18 10:35 ` [PATCH 01/15] drm/tegra: Map cmdbuf once for reloc processing Daniel Vetter
@ 2019-11-18 10:35 ` Daniel Vetter
  2019-11-25 11:04   ` Thierry Reding
  2019-11-18 10:35 ` [PATCH 08/15] drm/tegra: Remove dma_buf->k(un)map Daniel Vetter
  2 siblings, 1 reply; 8+ messages in thread
From: Daniel Vetter @ 2019-11-18 10:35 UTC (permalink / raw)
  To: DRI Development
  Cc: Daniel Vetter, Intel Graphics Development, Jonathan Hunter,
	linux-tegra, Daniel Vetter

It doesn't have any callers anymore.

Aside: The ->mmap/munmap hooks have a bit a confusing name, they don't
do userspace mmaps, but a kernel vmap. I think most places use vmap
for this, except ttm, which uses kmap for vmap for added confusion.
mmap seems entirely for userspace mappings set up through mmap(2)
syscall.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org
---
 drivers/gpu/drm/tegra/gem.c | 28 ----------------------------
 include/linux/host1x.h      | 13 -------------
 2 files changed, 41 deletions(-)

diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
index 746dae32c484..662cb7c87ef5 100644
--- a/drivers/gpu/drm/tegra/gem.c
+++ b/drivers/gpu/drm/tegra/gem.c
@@ -103,32 +103,6 @@ static void tegra_bo_munmap(struct host1x_bo *bo, void *addr)
 		vunmap(addr);
 }
 
-static void *tegra_bo_kmap(struct host1x_bo *bo, unsigned int page)
-{
-	struct tegra_bo *obj = host1x_to_tegra_bo(bo);
-
-	if (obj->vaddr)
-		return obj->vaddr + page * PAGE_SIZE;
-	else if (obj->gem.import_attach)
-		return dma_buf_kmap(obj->gem.import_attach->dmabuf, page);
-	else
-		return vmap(obj->pages + page, 1, VM_MAP,
-			    pgprot_writecombine(PAGE_KERNEL));
-}
-
-static void tegra_bo_kunmap(struct host1x_bo *bo, unsigned int page,
-			    void *addr)
-{
-	struct tegra_bo *obj = host1x_to_tegra_bo(bo);
-
-	if (obj->vaddr)
-		return;
-	else if (obj->gem.import_attach)
-		dma_buf_kunmap(obj->gem.import_attach->dmabuf, page, addr);
-	else
-		vunmap(addr);
-}
-
 static struct host1x_bo *tegra_bo_get(struct host1x_bo *bo)
 {
 	struct tegra_bo *obj = host1x_to_tegra_bo(bo);
@@ -145,8 +119,6 @@ static const struct host1x_bo_ops tegra_bo_ops = {
 	.unpin = tegra_bo_unpin,
 	.mmap = tegra_bo_mmap,
 	.munmap = tegra_bo_munmap,
-	.kmap = tegra_bo_kmap,
-	.kunmap = tegra_bo_kunmap,
 };
 
 static int tegra_bo_iommu_map(struct tegra_drm *tegra, struct tegra_bo *bo)
diff --git a/include/linux/host1x.h b/include/linux/host1x.h
index 6f8d772591ba..6edeb9228c4e 100644
--- a/include/linux/host1x.h
+++ b/include/linux/host1x.h
@@ -72,8 +72,6 @@ struct host1x_bo_ops {
 	void (*unpin)(struct device *dev, struct sg_table *sgt);
 	void *(*mmap)(struct host1x_bo *bo);
 	void (*munmap)(struct host1x_bo *bo, void *addr);
-	void *(*kmap)(struct host1x_bo *bo, unsigned int pagenum);
-	void (*kunmap)(struct host1x_bo *bo, unsigned int pagenum, void *addr);
 };
 
 struct host1x_bo {
@@ -119,17 +117,6 @@ static inline void host1x_bo_munmap(struct host1x_bo *bo, void *addr)
 	bo->ops->munmap(bo, addr);
 }
 
-static inline void *host1x_bo_kmap(struct host1x_bo *bo, unsigned int pagenum)
-{
-	return bo->ops->kmap(bo, pagenum);
-}
-
-static inline void host1x_bo_kunmap(struct host1x_bo *bo,
-				    unsigned int pagenum, void *addr)
-{
-	bo->ops->kunmap(bo, pagenum, addr);
-}
-
 /*
  * host1x syncpoints
  */
-- 
2.24.0

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH 08/15] drm/tegra: Remove dma_buf->k(un)map
       [not found] <20191118103536.17675-1-daniel.vetter@ffwll.ch>
  2019-11-18 10:35 ` [PATCH 01/15] drm/tegra: Map cmdbuf once for reloc processing Daniel Vetter
  2019-11-18 10:35 ` [PATCH 02/15] drm/tegra: Delete host1x_bo_ops->k(un)map Daniel Vetter
@ 2019-11-18 10:35 ` Daniel Vetter
  2019-11-25 11:06   ` Thierry Reding
  2 siblings, 1 reply; 8+ messages in thread
From: Daniel Vetter @ 2019-11-18 10:35 UTC (permalink / raw)
  To: DRI Development
  Cc: Daniel Vetter, Intel Graphics Development, Jonathan Hunter,
	linux-tegra, Daniel Vetter

No in-tree users left.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org
---
 drivers/gpu/drm/tegra/gem.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
index 662cb7c87ef5..84bb29070536 100644
--- a/drivers/gpu/drm/tegra/gem.c
+++ b/drivers/gpu/drm/tegra/gem.c
@@ -585,16 +585,6 @@ static int tegra_gem_prime_end_cpu_access(struct dma_buf *buf,
 	return 0;
 }
 
-static void *tegra_gem_prime_kmap(struct dma_buf *buf, unsigned long page)
-{
-	return NULL;
-}
-
-static void tegra_gem_prime_kunmap(struct dma_buf *buf, unsigned long page,
-				   void *addr)
-{
-}
-
 static int tegra_gem_prime_mmap(struct dma_buf *buf, struct vm_area_struct *vma)
 {
 	struct drm_gem_object *gem = buf->priv;
@@ -625,8 +615,6 @@ static const struct dma_buf_ops tegra_gem_prime_dmabuf_ops = {
 	.release = tegra_gem_prime_release,
 	.begin_cpu_access = tegra_gem_prime_begin_cpu_access,
 	.end_cpu_access = tegra_gem_prime_end_cpu_access,
-	.map = tegra_gem_prime_kmap,
-	.unmap = tegra_gem_prime_kunmap,
 	.mmap = tegra_gem_prime_mmap,
 	.vmap = tegra_gem_prime_vmap,
 	.vunmap = tegra_gem_prime_vunmap,
-- 
2.24.0

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 8+ messages in thread

* Re: [PATCH 01/15] drm/tegra: Map cmdbuf once for reloc processing
  2019-11-18 10:35 ` [PATCH 01/15] drm/tegra: Map cmdbuf once for reloc processing Daniel Vetter
@ 2019-11-25  9:58   ` Daniel Vetter
  2019-11-25 10:47     ` Thierry Reding
  2019-11-25 11:02   ` Thierry Reding
  1 sibling, 1 reply; 8+ messages in thread
From: Daniel Vetter @ 2019-11-25  9:58 UTC (permalink / raw)
  To: DRI Development
  Cc: linux-tegra, Daniel Vetter, Intel Graphics Development,
	Daniel Vetter

On Mon, Nov 18, 2019 at 11:35:22AM +0100, Daniel Vetter wrote:
> A few reasons to drop kmap:
> 
> - For native objects all we do is look at obj->vaddr anyway, so might
>   as well not call functions for every page.
> 
> - Reloc-processing on dma-buf is ... questionable.
> 
> - Plus most dma-buf that bother kernel cpu mmaps give you at least
>   vmap, much less kmaps. And all the ones relevant for arm-soc are
>   again doing a obj->vaddr game anyway, there's no real kmap going on
>   on arm it seems.
> 
> Plus this seems to be the only real in-tree user of dma_buf_kmap, and
> I'd like to get rid of that.
> 
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Thierry Reding <thierry.reding@gmail.com>
> Cc: linux-tegra@vger.kernel.org

Ping for testing/review on these first 2 tegra patches. They're holding up
the entire series, and I got acks for all the other bits surprisingly
fast. So would like to land this rather sooner than later. I'm also
working on a lot more dma-buf patches ...

Thanks, Daniel

> ---
>  drivers/gpu/host1x/job.c | 21 +++++++--------------
>  1 file changed, 7 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c
> index 25ca54de8fc5..60b2fedd0061 100644
> --- a/drivers/gpu/host1x/job.c
> +++ b/drivers/gpu/host1x/job.c
> @@ -244,8 +244,7 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job)
>  
>  static int do_relocs(struct host1x_job *job, struct host1x_job_gather *g)
>  {
> -	u32 last_page = ~0;
> -	void *cmdbuf_page_addr = NULL;
> +	void *cmdbuf_addr = NULL;
>  	struct host1x_bo *cmdbuf = g->bo;
>  	unsigned int i;
>  
> @@ -267,28 +266,22 @@ static int do_relocs(struct host1x_job *job, struct host1x_job_gather *g)
>  			goto patch_reloc;
>  		}
>  
> -		if (last_page != reloc->cmdbuf.offset >> PAGE_SHIFT) {
> -			if (cmdbuf_page_addr)
> -				host1x_bo_kunmap(cmdbuf, last_page,
> -						 cmdbuf_page_addr);
> +		if (!cmdbuf_addr) {
> +			cmdbuf_addr = host1x_bo_mmap(cmdbuf);
>  
> -			cmdbuf_page_addr = host1x_bo_kmap(cmdbuf,
> -					reloc->cmdbuf.offset >> PAGE_SHIFT);
> -			last_page = reloc->cmdbuf.offset >> PAGE_SHIFT;
> -
> -			if (unlikely(!cmdbuf_page_addr)) {
> +			if (unlikely(!cmdbuf_addr)) {
>  				pr_err("Could not map cmdbuf for relocation\n");
>  				return -ENOMEM;
>  			}
>  		}
>  
> -		target = cmdbuf_page_addr + (reloc->cmdbuf.offset & ~PAGE_MASK);
> +		target = cmdbuf_addr + reloc->cmdbuf.offset;
>  patch_reloc:
>  		*target = reloc_addr;
>  	}
>  
> -	if (cmdbuf_page_addr)
> -		host1x_bo_kunmap(cmdbuf, last_page, cmdbuf_page_addr);
> +	if (cmdbuf_addr)
> +		host1x_bo_munmap(cmdbuf, cmdbuf_addr);
>  
>  	return 0;
>  }
> -- 
> 2.24.0
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH 01/15] drm/tegra: Map cmdbuf once for reloc processing
  2019-11-25  9:58   ` Daniel Vetter
@ 2019-11-25 10:47     ` Thierry Reding
  0 siblings, 0 replies; 8+ messages in thread
From: Thierry Reding @ 2019-11-25 10:47 UTC (permalink / raw)
  To: Daniel Vetter
  Cc: linux-tegra, Daniel Vetter, Intel Graphics Development,
	DRI Development, Daniel Vetter


[-- Attachment #1.1: Type: text/plain, Size: 3173 bytes --]

On Mon, Nov 25, 2019 at 10:58:56AM +0100, Daniel Vetter wrote:
> On Mon, Nov 18, 2019 at 11:35:22AM +0100, Daniel Vetter wrote:
> > A few reasons to drop kmap:
> > 
> > - For native objects all we do is look at obj->vaddr anyway, so might
> >   as well not call functions for every page.
> > 
> > - Reloc-processing on dma-buf is ... questionable.
> > 
> > - Plus most dma-buf that bother kernel cpu mmaps give you at least
> >   vmap, much less kmaps. And all the ones relevant for arm-soc are
> >   again doing a obj->vaddr game anyway, there's no real kmap going on
> >   on arm it seems.
> > 
> > Plus this seems to be the only real in-tree user of dma_buf_kmap, and
> > I'd like to get rid of that.
> > 
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Thierry Reding <thierry.reding@gmail.com>
> > Cc: linux-tegra@vger.kernel.org
> 
> Ping for testing/review on these first 2 tegra patches. They're holding up
> the entire series, and I got acks for all the other bits surprisingly
> fast. So would like to land this rather sooner than later. I'm also
> working on a lot more dma-buf patches ...

Right, I had forgotten about this series. Let me go test it right away.

Thierry

> > ---
> >  drivers/gpu/host1x/job.c | 21 +++++++--------------
> >  1 file changed, 7 insertions(+), 14 deletions(-)
> > 
> > diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c
> > index 25ca54de8fc5..60b2fedd0061 100644
> > --- a/drivers/gpu/host1x/job.c
> > +++ b/drivers/gpu/host1x/job.c
> > @@ -244,8 +244,7 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job)
> >  
> >  static int do_relocs(struct host1x_job *job, struct host1x_job_gather *g)
> >  {
> > -	u32 last_page = ~0;
> > -	void *cmdbuf_page_addr = NULL;
> > +	void *cmdbuf_addr = NULL;
> >  	struct host1x_bo *cmdbuf = g->bo;
> >  	unsigned int i;
> >  
> > @@ -267,28 +266,22 @@ static int do_relocs(struct host1x_job *job, struct host1x_job_gather *g)
> >  			goto patch_reloc;
> >  		}
> >  
> > -		if (last_page != reloc->cmdbuf.offset >> PAGE_SHIFT) {
> > -			if (cmdbuf_page_addr)
> > -				host1x_bo_kunmap(cmdbuf, last_page,
> > -						 cmdbuf_page_addr);
> > +		if (!cmdbuf_addr) {
> > +			cmdbuf_addr = host1x_bo_mmap(cmdbuf);
> >  
> > -			cmdbuf_page_addr = host1x_bo_kmap(cmdbuf,
> > -					reloc->cmdbuf.offset >> PAGE_SHIFT);
> > -			last_page = reloc->cmdbuf.offset >> PAGE_SHIFT;
> > -
> > -			if (unlikely(!cmdbuf_page_addr)) {
> > +			if (unlikely(!cmdbuf_addr)) {
> >  				pr_err("Could not map cmdbuf for relocation\n");
> >  				return -ENOMEM;
> >  			}
> >  		}
> >  
> > -		target = cmdbuf_page_addr + (reloc->cmdbuf.offset & ~PAGE_MASK);
> > +		target = cmdbuf_addr + reloc->cmdbuf.offset;
> >  patch_reloc:
> >  		*target = reloc_addr;
> >  	}
> >  
> > -	if (cmdbuf_page_addr)
> > -		host1x_bo_kunmap(cmdbuf, last_page, cmdbuf_page_addr);
> > +	if (cmdbuf_addr)
> > +		host1x_bo_munmap(cmdbuf, cmdbuf_addr);
> >  
> >  	return 0;
> >  }
> > -- 
> > 2.24.0
> > 
> 
> -- 
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch

[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH 01/15] drm/tegra: Map cmdbuf once for reloc processing
  2019-11-18 10:35 ` [PATCH 01/15] drm/tegra: Map cmdbuf once for reloc processing Daniel Vetter
  2019-11-25  9:58   ` Daniel Vetter
@ 2019-11-25 11:02   ` Thierry Reding
  1 sibling, 0 replies; 8+ messages in thread
From: Thierry Reding @ 2019-11-25 11:02 UTC (permalink / raw)
  To: Daniel Vetter
  Cc: linux-tegra, Daniel Vetter, Intel Graphics Development,
	DRI Development


[-- Attachment #1.1: Type: text/plain, Size: 2716 bytes --]

On Mon, Nov 18, 2019 at 11:35:22AM +0100, Daniel Vetter wrote:
> A few reasons to drop kmap:
> 
> - For native objects all we do is look at obj->vaddr anyway, so might
>   as well not call functions for every page.
> 
> - Reloc-processing on dma-buf is ... questionable.
> 
> - Plus most dma-buf that bother kernel cpu mmaps give you at least
>   vmap, much less kmaps. And all the ones relevant for arm-soc are
>   again doing a obj->vaddr game anyway, there's no real kmap going on
>   on arm it seems.
> 
> Plus this seems to be the only real in-tree user of dma_buf_kmap, and
> I'd like to get rid of that.
> 
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Thierry Reding <thierry.reding@gmail.com>
> Cc: linux-tegra@vger.kernel.org
> ---
>  drivers/gpu/host1x/job.c | 21 +++++++--------------
>  1 file changed, 7 insertions(+), 14 deletions(-)

This looks correct to me, and running some of the grate project's tests
against this works just fine, so:

Reviewed-by: Thierry Reding <treding@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>

> diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c
> index 25ca54de8fc5..60b2fedd0061 100644
> --- a/drivers/gpu/host1x/job.c
> +++ b/drivers/gpu/host1x/job.c
> @@ -244,8 +244,7 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job)
>  
>  static int do_relocs(struct host1x_job *job, struct host1x_job_gather *g)
>  {
> -	u32 last_page = ~0;
> -	void *cmdbuf_page_addr = NULL;
> +	void *cmdbuf_addr = NULL;
>  	struct host1x_bo *cmdbuf = g->bo;
>  	unsigned int i;
>  
> @@ -267,28 +266,22 @@ static int do_relocs(struct host1x_job *job, struct host1x_job_gather *g)
>  			goto patch_reloc;
>  		}
>  
> -		if (last_page != reloc->cmdbuf.offset >> PAGE_SHIFT) {
> -			if (cmdbuf_page_addr)
> -				host1x_bo_kunmap(cmdbuf, last_page,
> -						 cmdbuf_page_addr);
> +		if (!cmdbuf_addr) {
> +			cmdbuf_addr = host1x_bo_mmap(cmdbuf);
>  
> -			cmdbuf_page_addr = host1x_bo_kmap(cmdbuf,
> -					reloc->cmdbuf.offset >> PAGE_SHIFT);
> -			last_page = reloc->cmdbuf.offset >> PAGE_SHIFT;
> -
> -			if (unlikely(!cmdbuf_page_addr)) {
> +			if (unlikely(!cmdbuf_addr)) {
>  				pr_err("Could not map cmdbuf for relocation\n");
>  				return -ENOMEM;
>  			}
>  		}
>  
> -		target = cmdbuf_page_addr + (reloc->cmdbuf.offset & ~PAGE_MASK);
> +		target = cmdbuf_addr + reloc->cmdbuf.offset;
>  patch_reloc:
>  		*target = reloc_addr;
>  	}
>  
> -	if (cmdbuf_page_addr)
> -		host1x_bo_kunmap(cmdbuf, last_page, cmdbuf_page_addr);
> +	if (cmdbuf_addr)
> +		host1x_bo_munmap(cmdbuf, cmdbuf_addr);
>  
>  	return 0;
>  }
> -- 
> 2.24.0
> 

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^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH 02/15] drm/tegra: Delete host1x_bo_ops->k(un)map
  2019-11-18 10:35 ` [PATCH 02/15] drm/tegra: Delete host1x_bo_ops->k(un)map Daniel Vetter
@ 2019-11-25 11:04   ` Thierry Reding
  0 siblings, 0 replies; 8+ messages in thread
From: Thierry Reding @ 2019-11-25 11:04 UTC (permalink / raw)
  To: Daniel Vetter
  Cc: linux-tegra, Daniel Vetter, Intel Graphics Development,
	DRI Development, Jonathan Hunter


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On Mon, Nov 18, 2019 at 11:35:23AM +0100, Daniel Vetter wrote:
> It doesn't have any callers anymore.
> 
> Aside: The ->mmap/munmap hooks have a bit a confusing name, they don't
> do userspace mmaps, but a kernel vmap. I think most places use vmap
> for this, except ttm, which uses kmap for vmap for added confusion.
> mmap seems entirely for userspace mappings set up through mmap(2)
> syscall.
> 
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Thierry Reding <thierry.reding@gmail.com>
> Cc: Jonathan Hunter <jonathanh@nvidia.com>
> Cc: linux-tegra@vger.kernel.org
> ---
>  drivers/gpu/drm/tegra/gem.c | 28 ----------------------------
>  include/linux/host1x.h      | 13 -------------
>  2 files changed, 41 deletions(-)

Tested along with the rest of the series and this is obviously right now
that the only user is gone, so:

Reviewed-by: Thierry Reding <treding@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>

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^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH 08/15] drm/tegra: Remove dma_buf->k(un)map
  2019-11-18 10:35 ` [PATCH 08/15] drm/tegra: Remove dma_buf->k(un)map Daniel Vetter
@ 2019-11-25 11:06   ` Thierry Reding
  0 siblings, 0 replies; 8+ messages in thread
From: Thierry Reding @ 2019-11-25 11:06 UTC (permalink / raw)
  To: Daniel Vetter
  Cc: linux-tegra, Daniel Vetter, Intel Graphics Development,
	DRI Development, Jonathan Hunter


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On Mon, Nov 18, 2019 at 11:35:29AM +0100, Daniel Vetter wrote:
> No in-tree users left.
> 
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Thierry Reding <thierry.reding@gmail.com>
> Cc: Jonathan Hunter <jonathanh@nvidia.com>
> Cc: linux-tegra@vger.kernel.org
> ---
>  drivers/gpu/drm/tegra/gem.c | 12 ------------
>  1 file changed, 12 deletions(-)

Same as before, I don't see any regressions when running some of the
grate tests, and there's obviously no longer any reason to keep these
functions around given that they are no longer used, so:

Reviewed-by: Thierry Reding <treding@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>

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^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2019-11-25 11:06 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
     [not found] <20191118103536.17675-1-daniel.vetter@ffwll.ch>
2019-11-18 10:35 ` [PATCH 01/15] drm/tegra: Map cmdbuf once for reloc processing Daniel Vetter
2019-11-25  9:58   ` Daniel Vetter
2019-11-25 10:47     ` Thierry Reding
2019-11-25 11:02   ` Thierry Reding
2019-11-18 10:35 ` [PATCH 02/15] drm/tegra: Delete host1x_bo_ops->k(un)map Daniel Vetter
2019-11-25 11:04   ` Thierry Reding
2019-11-18 10:35 ` [PATCH 08/15] drm/tegra: Remove dma_buf->k(un)map Daniel Vetter
2019-11-25 11:06   ` Thierry Reding

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