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authorThomas Gleixner2017-11-23 16:29:05 +0100
committerThomas Gleixner2017-11-23 16:29:05 +0100
commit866c9b94ef968445c52214b3748ecc52a8491bca (patch)
tree1fd073acb9be8e89e77b35c41e2964ac6feabee6 /drivers/gpu/drm/amd/amdgpu/cz_ih.c
parenttimekeeping: Remove CONFIG_GENERIC_TIME_VSYSCALL_OLD (diff)
parenttreewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts (diff)
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Merge tag 'for-linus-timers-conversion-final-v4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux into timers/urgent
Pull the last batch of manual timer conversions from Kees Cook: - final batch of "non trivial" timer conversions (multi-tree dependencies, things Coccinelle couldn't handle, etc). - treewide conversions via Coccinelle, in 4 steps: - DEFINE_TIMER() functions converted to struct timer_list * argument - init_timer() -> setup_timer() - setup_timer() -> timer_setup() - setup_timer() -> timer_setup() (with a single embedded structure) - deprecated timer API removals (init_timer(), setup_*timer()) - finalization of new API (remove global casts)
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/cz_ih.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/cz_ih.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/cz_ih.c b/drivers/gpu/drm/amd/amdgpu/cz_ih.c
index 0c1209cdd1cb..fa61d649bb44 100644
--- a/drivers/gpu/drm/amd/amdgpu/cz_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/cz_ih.c
@@ -208,6 +208,34 @@ static u32 cz_ih_get_wptr(struct amdgpu_device *adev)
}
/**
+ * cz_ih_prescreen_iv - prescreen an interrupt vector
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Returns true if the interrupt vector should be further processed.
+ */
+static bool cz_ih_prescreen_iv(struct amdgpu_device *adev)
+{
+ u32 ring_index = adev->irq.ih.rptr >> 2;
+ u16 pasid;
+
+ switch (le32_to_cpu(adev->irq.ih.ring[ring_index]) & 0xff) {
+ case 146:
+ case 147:
+ pasid = le32_to_cpu(adev->irq.ih.ring[ring_index + 2]) >> 16;
+ if (!pasid || amdgpu_vm_pasid_fault_credit(adev, pasid))
+ return true;
+ break;
+ default:
+ /* Not a VM fault */
+ return true;
+ }
+
+ adev->irq.ih.rptr += 16;
+ return false;
+}
+
+/**
* cz_ih_decode_iv - decode an interrupt vector
*
* @adev: amdgpu_device pointer
@@ -414,6 +442,7 @@ static const struct amd_ip_funcs cz_ih_ip_funcs = {
static const struct amdgpu_ih_funcs cz_ih_funcs = {
.get_wptr = cz_ih_get_wptr,
+ .prescreen_iv = cz_ih_prescreen_iv,
.decode_iv = cz_ih_decode_iv,
.set_rptr = cz_ih_set_rptr
};