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gpu: host1x: Rewrite syncpoint interrupt handling

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Move from the old, complex intr handling code to a new implementation
based on dma_fences. While there is a fair bit of churn to get there,
the new implementation is much simpler and likely faster as well due
to allowing signaling directly from interrupt context.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: I81c47fa1946679813f90e3fd8e1d1e9d6342143e
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2786635
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Mikko Perttunen
2021-09-07 19:15:08 +03:00
committed by Laxman Dewangan
parent 303267d828
commit 33a40367c0
9 changed files with 166 additions and 497 deletions
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4
drivers/gpu/host1x/dev.c
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@@ -663,7 +663,7 @@ static int host1x_probe(struct platform_device *pdev)
return PTR_ERR(host->regs);
}
syncpt_irq = platform_get_irq(pdev, 0);
host->syncpt_irq = platform_get_irq(pdev, 0);
if (syncpt_irq < 0)
return syncpt_irq;
@@ -725,7 +725,7 @@ static int host1x_probe(struct platform_device *pdev)
goto free_contexts;
}
err = host1x_intr_init(host, syncpt_irq);
err = host1x_intr_init(host);
if (err) {
dev_err(&pdev->dev, "failed to initialize interrupts\n");
goto deinit_syncpt;