1 files changed, 58 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/1347-drm-amd-powerplay-add-interface-to-allocate-memory-p.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/1347-drm-amd-powerplay-add-interface-to-allocate-memory-p.patch
new file mode 100644
index 00000000..19e9dcec
--- /dev/null
+++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/1347-drm-amd-powerplay-add-interface-to-allocate-memory-p.patch
@@ -0,0 +1,58 @@
+From 686c04c99775e8b0b2af7b04ddfe461e6ade5c6f Mon Sep 17 00:00:00 2001
+From: Huang Rui <ray.huang@amd.com>
+Date: Wed, 5 Dec 2018 11:41:33 +0800
+Subject: [PATCH 1347/2940] drm/amd/powerplay: add interface to allocate memory
+ pool (v2)
+
+This patch adds interface to allocate memory pool for smu.
+This memory pool will be used for SMC use and msg SetSystemVirtualDramAddr and
+DramLogSetDramAddr can notify it changed.
+
+v2: add detailed info to describe this function
+
+Signed-off-by: Huang Rui <ray.huang@amd.com>
+Acked-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 19 +++++++++++++++++++
+ 1 file changed, 19 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+index 87c46cf32293..4f61ee954ea7 100644
+--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
++++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+@@ -216,6 +216,21 @@ static int smu_smc_table_hw_init(struct smu_context *smu)
+ 	return ret;
+ }
+ 
++/**
++ * smu_alloc_memory_pool - allocate memory pool in the system memory
++ *
++ * @smu: amdgpu_device pointer
++ *
++ * This memory pool will be used for SMC use and msg SetSystemVirtualDramAddr
++ * and DramLogSetDramAddr can notify it changed.
++ *
++ * Returns 0 on success, error on failure.
++ */
++static int smu_alloc_memory_pool(struct smu_context *smu)
++{
++	return 0;
++}
++
+ static int smu_hw_init(void *handle)
+ {
+ 	int ret;
+@@ -243,6 +258,10 @@ static int smu_hw_init(void *handle)
+ 	if (ret)
+ 		goto failed;
+ 
++	ret = smu_alloc_memory_pool(smu);
++	if (ret)
++		goto failed;
++
+ 	mutex_unlock(&smu->mutex);
+ 
+ 	pr_info("SMU is initialized successfully!\n");
+-- 
+2.17.1
+