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gpu: host1x: Add API for reading actmon count

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Add API for reading the activity monitor average count for VIC,
NVENC, and NVDEC. There is currently no support for initializing
actmon, so this relies on someone else on a virtualized system
having initialized it (and mapped the actmon region read-only).

Bug 3973633

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: Ia1bfec6a090d4effb288b17cbac4d42bf5d0b4e5
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2864719
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Jonathan Hunter <jonathanh@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Mikko Perttunen
2023-02-28 11:12:18 +02:00
committed by Laxman Dewangan
parent 4207a59049
commit 41a9f72f78
5 changed files with 48 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/host1x/dev.c
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@@ -748,6 +748,7 @@ static int host1x_get_syncpt_pools(struct host1x *host)
static int host1x_probe(struct platform_device *pdev)
{
struct resource *res;
struct host1x *host;
int err;
@@ -758,8 +759,6 @@ static int host1x_probe(struct platform_device *pdev)
host->info = of_device_get_match_data(&pdev->dev);
if (host->info->has_hypervisor) {
struct resource *res;
host->regs = devm_platform_ioremap_resource_byname(pdev, "vm");
if (IS_ERR(host->regs))
return PTR_ERR(host->regs);
@@ -782,6 +781,13 @@ static int host1x_probe(struct platform_device *pdev)
return PTR_ERR(host->regs);
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "actmon");
if (res) {
host->actmon_regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(host->actmon_regs))
return PTR_ERR(host->actmon_regs);
}
host->syncpt_irq = platform_get_irq(pdev, 0);
if (host->syncpt_irq < 0)
return host->syncpt_irq;