nv-tegra-mirror/linux-nvgpu
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nvgpu.git synced 2025-12-22 17:36:20 +03:00
Code Issues Packages Projects Releases Wiki Activity

gpu: nvgpu: do not abort probe if secure page alloc fails

Browse Source 
Do not abort GPU probe if secure page alloc fails.
We can just note that this allocation failed (using bool
secure_alloc_ready) and prevent further secure memory
allocation if this flag is not set.

Bug 1525465

Change-Id: Ie4eb6393951690174013d2de3db507876d7b657f
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/427730
GVS: Gerrit_Virtual_Submit
Reviewed-by: Shridhar Rasal <srasal@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Deepak Nibade
2014-06-24 18:11:25 +05:30
committed by Dan Willemsen
parent 2680d6be57
commit 7ed71374e9
3 changed files with 11 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/nvgpu/gk20a/gk20a.c
View File

@@ -1351,6 +1351,9 @@ int gk20a_secure_page_alloc(struct platform_device *pdev)
tegra_periph_reset_deassert(platform->clk[0]);
}
if (!err)
platform->secure_alloc_ready = true;
return err;
}
@@ -1453,10 +1456,9 @@ static int gk20a_probe(struct platform_device *dev)
}
err = gk20a_secure_page_alloc(dev);
if (err) {
dev_err(&dev->dev, "failed to allocate secure buffer\n");
return err;
}
if (err)
dev_err(&dev->dev,
"failed to allocate secure buffer %d\n", err);
gk20a_debug_init(dev);

1
drivers/gpu/nvgpu/gk20a/platform_gk20a.h
View File

@@ -108,6 +108,7 @@ struct gk20a_platform {
*/
int (*secure_page_alloc)(struct platform_device *dev);
struct secure_page_buffer secure_buffer;
bool secure_alloc_ready;
/* Device is going to be suspended */
int (*suspend)(struct device *);

4
drivers/gpu/nvgpu/gk20a/platform_gk20a_tegra.c
View File

@@ -135,6 +135,7 @@ static int gk20a_tegra_secure_alloc(struct platform_device *pdev,
struct gr_ctx_buffer_desc *desc,
size_t size)
{
struct gk20a_platform *platform = platform_get_drvdata(pdev);
struct device *dev = &pdev->dev;
DEFINE_DMA_ATTRS(attrs);
dma_addr_t iova;
@@ -142,6 +143,9 @@ static int gk20a_tegra_secure_alloc(struct platform_device *pdev,
struct page *page;
int err = 0;
if (!platform->secure_alloc_ready)
return -EINVAL;
(void)dma_alloc_attrs(&tegra_vpr_dev, size, &iova,
DMA_MEMORY_NOMAP, &attrs);
if (dma_mapping_error(&tegra_vpr_dev, iova))