From: Karol Wachowski <karol.wachow...@linux.intel.com>
Move sequence of masking and unmasking global interrupts from buttress
interrupt handler to generic one that handles both VPUIP and BTRS
interrupts. Unmasking global interrupts will re-trigger MSI for any
pending interrupts.
Lack of this sequence will cause the driver to miss any
VPUIP interrupt that comes after reading VPU_37XX_HOST_SS_ICB_STATUS_0
and before clearing all active interrupt sources.
Signed-off-by: Karol Wachowski <karol.wachow...@linux.intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.grus...@linux.intel.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.grus...@linux.intel.com>
---
drivers/accel/ivpu/ivpu_hw_37xx.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/accel/ivpu/ivpu_hw_37xx.c
b/drivers/accel/ivpu/ivpu_hw_37xx.c
index 7e4e87aa7602..5c0246b9e522 100644
--- a/drivers/accel/ivpu/ivpu_hw_37xx.c
+++ b/drivers/accel/ivpu/ivpu_hw_37xx.c
@@ -906,9 +906,6 @@ static u32 ivpu_hw_37xx_irqb_handler(struct ivpu_device
*vdev, int irq)
if (status == 0)
return 0;
- /* Disable global interrupt before handling local buttress interrupts */
- REGB_WR32(VPU_37XX_BUTTRESS_GLOBAL_INT_MASK, 0x1);
-
if (REG_TEST_FLD(VPU_37XX_BUTTRESS_INTERRUPT_STAT, FREQ_CHANGE, status))
ivpu_dbg(vdev, IRQ, "FREQ_CHANGE irq: %08x",
REGB_RD32(VPU_37XX_BUTTRESS_CURRENT_PLL));
@@ -940,9 +937,6 @@ static u32 ivpu_hw_37xx_irqb_handler(struct ivpu_device
*vdev, int irq)
else
REGB_WR32(VPU_37XX_BUTTRESS_INTERRUPT_STAT, status);
- /* Re-enable global interrupt */
- REGB_WR32(VPU_37XX_BUTTRESS_GLOBAL_INT_MASK, 0x0);
-
if (schedule_recovery)
ivpu_pm_schedule_recovery(vdev);
@@ -954,9 +948,14 @@ static irqreturn_t ivpu_hw_37xx_irq_handler(int irq, void
*ptr)
struct ivpu_device *vdev = ptr;
u32 ret_irqv, ret_irqb;
+ REGB_WR32(VPU_37XX_BUTTRESS_GLOBAL_INT_MASK, 0x1);
+
ret_irqv = ivpu_hw_37xx_irqv_handler(vdev, irq);
ret_irqb = ivpu_hw_37xx_irqb_handler(vdev, irq);
+ /* Re-enable global interrupts to re-trigger MSI for pending interrupts
*/
+ REGB_WR32(VPU_37XX_BUTTRESS_GLOBAL_INT_MASK, 0x0);
+
return IRQ_RETVAL(ret_irqb | ret_irqv);
}
--
2.25.1
