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gpu: host1x: Program virtualization tables

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Program virtualization tables specifying which VMs have access to which
Host1x hardware resources. Programming these has become mandatory in
Tegra234.

For now, since the driver does not operate as a Host1x hypervisor, we
basically allow access to everything to everyone.

Bug 3724727

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: I67e09e7d9c55128c40c54c078912cc38c7616eac
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2745952
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
Reviewed-by: Jonathan Hunter <jonathanh@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: Brad Griffis <bgriffis@nvidia.com>
This commit is contained in:
Mikko Perttunen
2022-03-08 12:16:16 +02:00
committed by Laxman Dewangan
parent d9c7b1421d
commit d801058ffc
2 changed files with 26 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/host1x/dev.h
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@@ -90,6 +90,11 @@ struct host1x_sid_entry {
unsigned int limit;
};
struct host1x_table_desc {
unsigned int base;
unsigned int count;
};
struct host1x_info {
unsigned int nb_channels; /* host1x: number of channels supported */
unsigned int nb_pts; /* host1x: number of syncpoints supported */
@@ -103,6 +108,9 @@ struct host1x_info {
bool has_common; /* has common registers separate from hypervisor */
unsigned int num_sid_entries;
const struct host1x_sid_entry *sid_table;
struct host1x_table_desc streamid_vm_table;
struct host1x_table_desc classid_vm_table;
struct host1x_table_desc mmio_vm_table;
/*
* On T20-T148, the boot chain may setup DC to increment syncpoints
* 26/27 on VBLANK. As such we cannot use these syncpoints until