diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3085-drm-amdgpu-add-HDP-asic-callbacks-for-SI.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3085-drm-amdgpu-add-HDP-asic-callbacks-for-SI.patch | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3085-drm-amdgpu-add-HDP-asic-callbacks-for-SI.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3085-drm-amdgpu-add-HDP-asic-callbacks-for-SI.patch new file mode 100644 index 00000000..611a7bed --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3085-drm-amdgpu-add-HDP-asic-callbacks-for-SI.patch @@ -0,0 +1,52 @@ +From 5f23952b33e1837f18080a33077a1400e72ae100 Mon Sep 17 00:00:00 2001 +From: Alex Deucher <alexander.deucher@amd.com> +Date: Wed, 6 Sep 2017 18:05:43 -0400 +Subject: [PATCH 3085/4131] drm/amdgpu: add HDP asic callbacks for SI +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. + +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/si.c | 14 ++++++++++++++ + 1 file changed, 14 insertions(+) + +diff --git a/drivers/gpu/drm/amd/amdgpu/si.c b/drivers/gpu/drm/amd/amdgpu/si.c +index 3598151..44ead2d 100644 +--- a/drivers/gpu/drm/amd/amdgpu/si.c ++++ b/drivers/gpu/drm/amd/amdgpu/si.c +@@ -1296,6 +1296,18 @@ static void si_set_pcie_lanes(struct amdgpu_device *adev, int lanes) + WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl); + } + ++static void si_flush_hdp(struct amdgpu_device *adev) ++{ ++ WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 1); ++ RREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL); ++} ++ ++static void si_invalidate_hdp(struct amdgpu_device *adev) ++{ ++ WREG32(mmHDP_DEBUG0, 1); ++ RREG32(mmHDP_DEBUG0); ++} ++ + static const struct amdgpu_asic_funcs si_asic_funcs = + { + .read_disabled_bios = &si_read_disabled_bios, +@@ -1309,6 +1321,8 @@ static const struct amdgpu_asic_funcs si_asic_funcs = + .get_pcie_lanes = &si_get_pcie_lanes, + .set_pcie_lanes = &si_set_pcie_lanes, + .get_config_memsize = &si_get_config_memsize, ++ .flush_hdp = &si_flush_hdp, ++ .invalidate_hdp = &si_invalidate_hdp, + }; + + static uint32_t si_get_rev_id(struct amdgpu_device *adev) +-- +2.7.4 + |