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Add dma_sync* calls to make memory coherent between
CPU and Device.
Bug 983988
Change-Id: I40c514e01130762a12833c3ab7e0613f984870c6
Signed-off-by: Pradeep Kumar <pgoudagunta@nvidia.com>
Reviewed-on: http://git-master/r/103336
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
GVS: Gerrit_Virtual_Submit
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Make tegra_apb_readl() , tegra_apb_writel()
T20 only
Bug 950116
Change-Id: I75601bebaee14ed2e217a16c0e46fb2910c421c8
Signed-off-by: Prashant Malani <pmalani@nvidia.com>
Reviewed-on: http://git-master/r/102712
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
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To terminate request from dma, use the tegra_dma_cancel() inplace of
tegra_dma_dequeue().
The api tegra_dma_dequeue() is getting to be obsolete.
Change-Id: I4b886489458e4ec8f5eb43d857bf710fbb56f5ee
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/91751
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Venu Byravarasu <vbyravarasu@nvidia.com>
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By changing the dma allocation API to take the client name, it is easy
to track who is allocated the DMA channels when we run out of the
DMA channels.
Original-Change-Id: I016011cfd74089fed0da1bc0f121800017ce124a
Reviewed-on: http://git-master/r/28031
Reviewed-by: Varun Colbert <vcolbert@nvidia.com>
Tested-by: Varun Colbert <vcolbert@nvidia.com>
Original-Change-Id: I048bcb87f95ee6d8ad2fdce993a1758dc5071666
Rebase-Id: R08ce682381dad3170a335f47333f0a6afb8d4579
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In one bug report, the APB readl DMA transfer took up to 300mS. And
after apb_readl() has the timeout, the kernel crashed due to the NULL
pointer dereference.
In the apb_readl(), after the timeout the tegra_dma_req is destroyed at
the function return. But the DMA interrupt handler later will try to
delete the same destroyed DMA request link list node which will cause
the kernel crash.
Fix this by dequeue the DMA request if the DMA transfer timeout happens.
Reviewed-on: http://git-master/r/23413
(cherry picked from commit 41d4494d0d3235b8f0c605364d5bd0370f3d5323)
Original-Change-Id: Id62b73ea4b81294a85ff1dfcfd96fede07f9497d
Reviewed-on: http://git-master/r/23775
Reviewed-by: Jonathan Mayo <jmayo@nvidia.com>
Reviewed-by: Scott Peterson <speterson@nvidia.com>
Tested-by: Bharat Nihalani <bnihalani@nvidia.com>
Rebase-Id: R372818cbf33d71ce9b416577d8bcf339ee874352
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Change-Id: Iaf07fe2412a012c3b02850fecc6f1dba90bd8ff1
Signed-off-by: Colin Cross <ccross@android.com>
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Change-Id: I165411a14342666cbac02fb8cb171580ab0826aa
Reviewed-on: http://git-master/r/14464
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Tested-by: Jon Mayo <jmayo@nvidia.com>
Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
Signed-off-by: Jon Mayo <jmayo@nvidia.com>
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