From 21e2214c3db8889a5fe2449690d283c67f2150cb Mon Sep 17 00:00:00 2001
From: Seema Khowala <seemaj@nvidia.com>
Date: Tue, 17 Mar 2020 19:17:52 -0700
Subject: [PATCH] gpu: nvgpu: support nvgpu-next intr config

JIRA NVGPU-4864

Change-Id: I2fb5be3270c73ea891021161f539a7f731e05f63
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2314372
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Lakshmanan M <lm@nvidia.com>
Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: Lakshmanan M <lm@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
---
 drivers/gpu/nvgpu/common/mc/mc.c     | 42 ++++++++++++++++++++++++++++
 drivers/gpu/nvgpu/include/nvgpu/mc.h |  6 ++++
 2 files changed, 48 insertions(+)

diff --git a/drivers/gpu/nvgpu/common/mc/mc.c b/drivers/gpu/nvgpu/common/mc/mc.c
index b286ce7e6..621152f3f 100644
--- a/drivers/gpu/nvgpu/common/mc/mc.c
+++ b/drivers/gpu/nvgpu/common/mc/mc.c
@@ -24,6 +24,7 @@
 
 #include <nvgpu/mc.h>
 #include <nvgpu/gk20a.h>
+#include <nvgpu/bug.h>
 
 void nvgpu_wait_for_deferred_interrupts(struct gk20a *g)
 {
@@ -122,3 +123,44 @@ void nvgpu_mc_intr_nonstall_resume(struct gk20a *g)
 	g->ops.mc.intr_nonstall_resume(g);
 	nvgpu_spinunlock_irqrestore(&g->mc.intr_lock, flags);
 }
+
+#if defined(CONFIG_NVGPU_NON_FUSA) && defined(CONFIG_NVGPU_NEXT)
+void nvgpu_mc_intr_unit_vectorid_init(struct gk20a *g, u32 unit,
+		u32 *vectorid, u32 num_entries)
+{
+	unsigned long flags = 0;
+	u32 i = 0U;
+	struct nvgpu_intr_unit_info *intr_unit_info;
+
+	nvgpu_assert(num_entries <= INTR_VECTORID_SIZE_MAX);
+
+	intr_unit_info = g->mc.nvgpu_next.intr_unit_info;
+
+	nvgpu_spinlock_irqsave(&g->mc.intr_lock, flags);
+
+	if (intr_unit_info[unit].valid == false) {
+		for (i = 0U; i < num_entries; i++) {
+			intr_unit_info[unit].vectorid[i] = *(vectorid + i);
+		}
+		intr_unit_info[unit].vectorid_size = num_entries;
+	}
+	nvgpu_spinunlock_irqrestore(&g->mc.intr_lock, flags);
+}
+
+bool nvgpu_mc_intr_is_unit_info_valid(struct gk20a *g, u32 unit)
+{
+	unsigned long flags = 0;
+	struct nvgpu_intr_unit_info *intr_unit_info;
+	bool info_valid = false;
+
+	intr_unit_info = g->mc.nvgpu_next.intr_unit_info;
+
+	nvgpu_spinlock_irqsave(&g->mc.intr_lock, flags);
+	if (intr_unit_info[unit].valid == true) {
+		info_valid = true;
+	}
+	nvgpu_spinunlock_irqrestore(&g->mc.intr_lock, flags);
+
+	return info_valid;
+}
+#endif
diff --git a/drivers/gpu/nvgpu/include/nvgpu/mc.h b/drivers/gpu/nvgpu/include/nvgpu/mc.h
index dcff59599..94f70dcbd 100644
--- a/drivers/gpu/nvgpu/include/nvgpu/mc.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/mc.h
@@ -501,4 +501,10 @@ void nvgpu_mc_intr_nonstall_pause(struct gk20a *g);
  */
 void nvgpu_mc_intr_nonstall_resume(struct gk20a *g);
 
+#if defined(CONFIG_NVGPU_NON_FUSA) && defined(CONFIG_NVGPU_NEXT)
+void nvgpu_mc_intr_unit_vectorid_init(struct gk20a *g, u32 unit,
+		u32 *vectorid, u32 num_entries);
+bool nvgpu_mc_intr_is_unit_info_valid(struct gk20a *g, u32 unit);
+#endif
+
 #endif