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From 572c9105eb8273143b2327887ef08c9c06362ed0 Mon Sep 17 00:00:00 2001
From: Philip Cox <Philip.Cox@amd.com>
Date: Wed, 14 Aug 2019 09:32:55 -0400
Subject: [PATCH 4143/4736] drm/amdkfd: Debugger: block non default trap masks
On the current hardware, we only support the default trap mask,
so we need to block non default values until supported in by
future hardware.
Change-Id: Iad94057bb33564b972cc3e7e0f401340f215c8ba
Signed-off-by: Philip Cox <Philip.Cox@amd.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 52acb0064939..22f7aa576c7e 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -2764,6 +2764,17 @@ static int kfd_ioctl_dbg_set_debug_trap(struct file *filep,
break;
case KFD_IOC_DBG_TRAP_SET_WAVE_LAUNCH_OVERRIDE:
+ if (data2 != 0) {
+ /* On current hardware, we only support a trap
+ * mask value of 0. This is because the debug
+ * trap mask is global and shared by all processes
+ * on current hardware.
+ */
+ pr_err("Invalid trap override option: %i\n",
+ data2);
+ r = -EINVAL;
+ goto unlock_out;
+ }
r = dev->kfd2kgd->set_wave_launch_trap_override(
dev->kgd,
data1,
--
2.17.1
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