1 files changed, 52 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3088-drm-amdgpu-add-HDP-asic-callbacks-for-SOC15-v2.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3088-drm-amdgpu-add-HDP-asic-callbacks-for-SOC15-v2.patch
new file mode 100644
index 00000000..9b41ad2f
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3088-drm-amdgpu-add-HDP-asic-callbacks-for-SOC15-v2.patch
@@ -0,0 +1,52 @@
+From 899bd2695fa9c0904b128716818d41d10c3725a0 Mon Sep 17 00:00:00 2001
+From: Alex Deucher <alexander.deucher@amd.com>
+Date: Wed, 6 Sep 2017 18:06:45 -0400
+Subject: [PATCH 3088/4131] drm/amdgpu: add HDP asic callbacks for SOC15 (v2)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Needed to flush and invalidate the HDP block using the CPU.
+
+v2: use preferred register on soc15.
+
+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> (v1)
+---
+ drivers/gpu/drm/amd/amdgpu/soc15.c | 12 ++++++++++++
+ 1 file changed, 12 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
+index a04a033..ad39ffd 100644
+--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
++++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
+@@ -583,6 +583,16 @@ static uint32_t soc15_get_rev_id(struct amdgpu_device *adev)
+ 	return adev->nbio_funcs->get_rev_id(adev);
+ }
+ 
++static void soc15_flush_hdp(struct amdgpu_device *adev)
++{
++	adev->nbio_funcs->hdp_flush(adev);
++}
++
++static void soc15_invalidate_hdp(struct amdgpu_device *adev)
++{
++	WREG32_SOC15_NO_KIQ(NBIO, 0, mmHDP_READ_CACHE_INVALIDATE, 1);
++}
++
+ static const struct amdgpu_asic_funcs soc15_asic_funcs =
+ {
+ 	.read_disabled_bios = &soc15_read_disabled_bios,
+@@ -594,6 +604,8 @@ static const struct amdgpu_asic_funcs soc15_asic_funcs =
+ 	.set_uvd_clocks = &soc15_set_uvd_clocks,
+ 	.set_vce_clocks = &soc15_set_vce_clocks,
+ 	.get_config_memsize = &soc15_get_config_memsize,
++	.flush_hdp = &soc15_flush_hdp,
++	.invalidate_hdp = &soc15_invalidate_hdp,
+ };
+ 
+ static int soc15_common_early_init(void *handle)
+-- 
+2.7.4
+