[PATCH 1/2] drm/amdgpu: reapply "fix start calculation in amdgpu_vram_mgr_new""

[PATCH 1/2] drm/amdgpu: reapply "fix start calculation in amdgpu_vram_mgr_new""

[Christian König]

This re-applys commit 5e3f1e7729ec7a99e145e9d8ed58963d86cdfb98.

The original problem this was reverted for was found and the correct fix
will be merged to drm-misc-next-fixes.

Signed-off-by: Christian König <christian.koenig@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 22 +++++++++++++-------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
index 49e4092f447f..51d9d3a4456c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
@@ -496,16 +496,22 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
 			list_splice_tail(trim_list, &vres->blocks);
 	}
 
-	list_for_each_entry(block, &vres->blocks, link)
-		vis_usage += amdgpu_vram_mgr_vis_size(adev, block);
+	vres->base.start = 0;
+	list_for_each_entry(block, &vres->blocks, link) {
+		unsigned long start;
 
-	block = amdgpu_vram_mgr_first_block(&vres->blocks);
-	if (!block) {
-		r = -EINVAL;
-		goto error_fini;
-	}
+		start = amdgpu_vram_mgr_block_start(block) +
+			amdgpu_vram_mgr_block_size(block);
+		start >>= PAGE_SHIFT;
 
-	vres->base.start = amdgpu_vram_mgr_block_start(block) >> PAGE_SHIFT;
+		if (start > vres->base.num_pages)
+			start -= vres->base.num_pages;
+		else
+			start = 0;
+		vres->base.start = max(vres->base.start, start);
+
+		vis_usage += amdgpu_vram_mgr_vis_size(adev, block);
+	}
 
 	if (amdgpu_is_vram_mgr_blocks_contiguous(&vres->blocks))
 		vres->base.placement |= TTM_PL_FLAG_CONTIGUOUS;
-- 
2.25.1

[PATCH 2/2] drm/amdgpu: re-apply "move internal vram_mgr function into the C file""

[Christian König]

This re-applys commit 708d19d9f362766147cab79eccae60912c6d3068.

The original problem this was reverted for was found and the correct fix
will be merged to drm-misc-next-fixes.

Signed-off-by: Christian König <christian.koenig@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 29 ++++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h | 27 ------------------
 2 files changed, 29 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
index 51d9d3a4456c..7a5e8a7b4a1b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
@@ -50,6 +50,35 @@ to_amdgpu_device(struct amdgpu_vram_mgr *mgr)
 	return container_of(mgr, struct amdgpu_device, mman.vram_mgr);
 }
 
+static inline struct drm_buddy_block *
+amdgpu_vram_mgr_first_block(struct list_head *list)
+{
+	return list_first_entry_or_null(list, struct drm_buddy_block, link);
+}
+
+static inline bool amdgpu_is_vram_mgr_blocks_contiguous(struct list_head *head)
+{
+	struct drm_buddy_block *block;
+	u64 start, size;
+
+	block = amdgpu_vram_mgr_first_block(head);
+	if (!block)
+		return false;
+
+	while (head != block->link.next) {
+		start = amdgpu_vram_mgr_block_start(block);
+		size = amdgpu_vram_mgr_block_size(block);
+
+		block = list_entry(block->link.next, struct drm_buddy_block, link);
+		if (start + size != amdgpu_vram_mgr_block_start(block))
+			return false;
+	}
+
+	return true;
+}
+
+
+
 /**
  * DOC: mem_info_vram_total
  *
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h
index 9a2db87186c7..4b267bf1c5db 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h
@@ -53,33 +53,6 @@ static inline u64 amdgpu_vram_mgr_block_size(struct drm_buddy_block *block)
 	return PAGE_SIZE << drm_buddy_block_order(block);
 }
 
-static inline struct drm_buddy_block *
-amdgpu_vram_mgr_first_block(struct list_head *list)
-{
-	return list_first_entry_or_null(list, struct drm_buddy_block, link);
-}
-
-static inline bool amdgpu_is_vram_mgr_blocks_contiguous(struct list_head *head)
-{
-	struct drm_buddy_block *block;
-	u64 start, size;
-
-	block = amdgpu_vram_mgr_first_block(head);
-	if (!block)
-		return false;
-
-	while (head != block->link.next) {
-		start = amdgpu_vram_mgr_block_start(block);
-		size = amdgpu_vram_mgr_block_size(block);
-
-		block = list_entry(block->link.next, struct drm_buddy_block, link);
-		if (start + size != amdgpu_vram_mgr_block_start(block))
-			return false;
-	}
-
-	return true;
-}
-
 static inline struct amdgpu_vram_mgr_resource *
 to_amdgpu_vram_mgr_resource(struct ttm_resource *res)
 {
-- 
2.25.1

Re: [PATCH 1/2] drm/amdgpu: reapply "fix start calculation in amdgpu_vram_mgr_new""

[Arunpravin Paneer Selvam]

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Hi Christian,

I verified the patch.

Reviewed-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>

Regards,
Arun

On 7/14/2022 6:53 PM, Christian König wrote:
> This re-applys commit 5e3f1e7729ec7a99e145e9d8ed58963d86cdfb98.
>
> The original problem this was reverted for was found and the correct fix
> will be merged to drm-misc-next-fixes.
>
> Signed-off-by: Christian König<christian.koenig@amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 22 +++++++++++++-------
>   1 file changed, 14 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
> index 49e4092f447f..51d9d3a4456c 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
> @@ -496,16 +496,22 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
>   			list_splice_tail(trim_list, &vres->blocks);
>   	}
>   
> -	list_for_each_entry(block, &vres->blocks, link)
> -		vis_usage += amdgpu_vram_mgr_vis_size(adev, block);
> +	vres->base.start = 0;
> +	list_for_each_entry(block, &vres->blocks, link) {
> +		unsigned long start;
>   
> -	block = amdgpu_vram_mgr_first_block(&vres->blocks);
> -	if (!block) {
> -		r = -EINVAL;
> -		goto error_fini;
> -	}
> +		start = amdgpu_vram_mgr_block_start(block) +
> +			amdgpu_vram_mgr_block_size(block);
> +		start >>= PAGE_SHIFT;
>   
> -	vres->base.start = amdgpu_vram_mgr_block_start(block) >> PAGE_SHIFT;
> +		if (start > vres->base.num_pages)
> +			start -= vres->base.num_pages;
> +		else
> +			start = 0;
> +		vres->base.start = max(vres->base.start, start);
> +
> +		vis_usage += amdgpu_vram_mgr_vis_size(adev, block);
> +	}
>   
>   	if (amdgpu_is_vram_mgr_blocks_contiguous(&vres->blocks))
>   		vres->base.placement |= TTM_PL_FLAG_CONTIGUOUS;

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Re: [PATCH 2/2] drm/amdgpu: re-apply "move internal vram_mgr function into the C file""

[Arunpravin Paneer Selvam]

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Hi Christian,

I verified the patch.

Reviewed-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>

Thanks,
Arun

On 7/14/2022 6:53 PM, Christian König wrote:
> This re-applys commit 708d19d9f362766147cab79eccae60912c6d3068.
>
> The original problem this was reverted for was found and the correct fix
> will be merged to drm-misc-next-fixes.
>
> Signed-off-by: Christian König<christian.koenig@amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 29 ++++++++++++++++++++
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h | 27 ------------------
>   2 files changed, 29 insertions(+), 27 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
> index 51d9d3a4456c..7a5e8a7b4a1b 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
> @@ -50,6 +50,35 @@ to_amdgpu_device(struct amdgpu_vram_mgr *mgr)
>   	return container_of(mgr, struct amdgpu_device, mman.vram_mgr);
>   }
>   
> +static inline struct drm_buddy_block *
> +amdgpu_vram_mgr_first_block(struct list_head *list)
> +{
> +	return list_first_entry_or_null(list, struct drm_buddy_block, link);
> +}
> +
> +static inline bool amdgpu_is_vram_mgr_blocks_contiguous(struct list_head *head)
> +{
> +	struct drm_buddy_block *block;
> +	u64 start, size;
> +
> +	block = amdgpu_vram_mgr_first_block(head);
> +	if (!block)
> +		return false;
> +
> +	while (head != block->link.next) {
> +		start = amdgpu_vram_mgr_block_start(block);
> +		size = amdgpu_vram_mgr_block_size(block);
> +
> +		block = list_entry(block->link.next, struct drm_buddy_block, link);
> +		if (start + size != amdgpu_vram_mgr_block_start(block))
> +			return false;
> +	}
> +
> +	return true;
> +}
> +
> +
> +
>   /**
>    * DOC: mem_info_vram_total
>    *
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h
> index 9a2db87186c7..4b267bf1c5db 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h
> @@ -53,33 +53,6 @@ static inline u64 amdgpu_vram_mgr_block_size(struct drm_buddy_block *block)
>   	return PAGE_SIZE << drm_buddy_block_order(block);
>   }
>   
> -static inline struct drm_buddy_block *
> -amdgpu_vram_mgr_first_block(struct list_head *list)
> -{
> -	return list_first_entry_or_null(list, struct drm_buddy_block, link);
> -}
> -
> -static inline bool amdgpu_is_vram_mgr_blocks_contiguous(struct list_head *head)
> -{
> -	struct drm_buddy_block *block;
> -	u64 start, size;
> -
> -	block = amdgpu_vram_mgr_first_block(head);
> -	if (!block)
> -		return false;
> -
> -	while (head != block->link.next) {
> -		start = amdgpu_vram_mgr_block_start(block);
> -		size = amdgpu_vram_mgr_block_size(block);
> -
> -		block = list_entry(block->link.next, struct drm_buddy_block, link);
> -		if (start + size != amdgpu_vram_mgr_block_start(block))
> -			return false;
> -	}
> -
> -	return true;
> -}
> -
>   static inline struct amdgpu_vram_mgr_resource *
>   to_amdgpu_vram_mgr_resource(struct ttm_resource *res)
>   {

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