1 files changed, 46 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3084-drm-amdgpu-add-new-asic-callbacks-for-HDP-flush-inva.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3084-drm-amdgpu-add-new-asic-callbacks-for-HDP-flush-inva.patch
new file mode 100644
index 00000000..d416fcee
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3084-drm-amdgpu-add-new-asic-callbacks-for-HDP-flush-inva.patch
@@ -0,0 +1,46 @@
+From 2864605ce1e4c4aa33ac37705109a4436c5f9fd9 Mon Sep 17 00:00:00 2001
+From: Alex Deucher <alexander.deucher@amd.com>
+Date: Wed, 6 Sep 2017 18:04:51 -0400
+Subject: [PATCH 3084/4131] drm/amdgpu: add new asic callbacks for HDP
+ flush/invalidation
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Needed to properly flush the HDP cache with the CPU from rather
+than the GPU.
+
+Reviewed-by: Christian König <christian.koenig@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+Signed-off-by: Samuel Li <Samuel.Li@amd.com>
+---
+ drivers/gpu/drm/amd/amdgpu/amdgpu.h | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+index 2a5155a..de34485d 100755
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+@@ -1311,6 +1311,10 @@ struct amdgpu_asic_funcs {
+ 	void (*set_pcie_lanes)(struct amdgpu_device *adev, int lanes);
+ 	/* get config memsize register */
+ 	u32 (*get_config_memsize)(struct amdgpu_device *adev);
++	/* flush hdp write queue */
++	void (*flush_hdp)(struct amdgpu_device *adev);
++	/* invalidate hdp read cache */
++	void (*invalidate_hdp)(struct amdgpu_device *adev);
+ };
+ 
+ /*
+@@ -1906,6 +1910,8 @@ amdgpu_get_sdma_instance(struct amdgpu_ring *ring)
+ #define amdgpu_asic_read_bios_from_rom(adev, b, l) (adev)->asic_funcs->read_bios_from_rom((adev), (b), (l))
+ #define amdgpu_asic_read_register(adev, se, sh, offset, v)((adev)->asic_funcs->read_register((adev), (se), (sh), (offset), (v)))
+ #define amdgpu_asic_get_config_memsize(adev) (adev)->asic_funcs->get_config_memsize((adev))
++#define amdgpu_asic_flush_hdp(adev) (adev)->asic_funcs->flush_hdp((adev))
++#define amdgpu_asic_invalidate_hdp(adev) (adev)->asic_funcs->invalidate_hdp((adev))
+ #define amdgpu_gart_flush_gpu_tlb(adev, vmid) (adev)->gart.gart_funcs->flush_gpu_tlb((adev), (vmid))
+ #define amdgpu_gart_set_pte_pde(adev, pt, idx, addr, flags) (adev)->gart.gart_funcs->set_pte_pde((adev), (pt), (idx), (addr), (flags))
+ #define amdgpu_gart_get_vm_pde(adev, level, dst, flags) (adev)->gart.gart_funcs->get_vm_pde((adev), (level), (dst), (flags))
+-- 
+2.7.4
+