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gpu: nvgpu: Split stalling interrupt handling

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Split handling of stalling interrupt to Linux specific chip
agnostic and OS independent chip specific parts.

Linux specific chip independent part contains handler for ISR
and passing the control to a bottom half. It uses the new MC HALs
intr_stall (query interrupt status), intr_pause (pause interrupts)
and intr_resume (resume interrupts).

MC HAL isr_stall now returns void and gets called in thread context
and thus remove isr_thread_stall and replace the implementation with
isr_stall.

JIRA NVGPU-26

Change-Id: I206f330f6fc4a1f4def47c5f986585ac4080216d
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1480243
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Terje Bergstrom
2017-05-11 13:12:03 -07:00
committed by mobile promotions
parent 0bb47c3675
commit 726900b843
11 changed files with 147 additions and 89 deletions
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7
drivers/gpu/nvgpu/common/linux/pci.c
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@@ -25,6 +25,7 @@
#include "gk20a/platform_gk20a.h"
#include "clk/clk.h"
#include "module.h"
#include "intr.h"
#include "pci.h"
@@ -232,7 +233,7 @@ static irqreturn_t nvgpu_pci_isr(int irq, void *dev_id)
irqreturn_t ret_stall;
irqreturn_t ret_nonstall;
ret_stall = g->ops.mc.isr_stall(g);
ret_stall = nvgpu_intr_stall(g);
ret_nonstall = g->ops.mc.isr_nonstall(g);
#if defined(CONFIG_PCI_MSI)
@@ -248,9 +249,7 @@ static irqreturn_t nvgpu_pci_intr_thread(int irq, void *dev_id)
{
struct gk20a *g = dev_id;
g->ops.mc.isr_thread_stall(g);
return IRQ_HANDLED;
return nvgpu_intr_thread_stall(g);
}
static int nvgpu_pci_init_support(struct pci_dev *pdev)