[PATCH 54/57] drm/amdgpu/df: implement df v3_6 callback functions (v2)
Alex Deucher
alexdeucher at gmail.com
Tue May 15 14:59:30 UTC 2018
From: Feifei Xu <Feifei.Xu at amd.com>
New df helpers for 3.6.
v2: switch to using df 3.5 headers.
Signed-off-by: Feifei Xu <Feifei.Xu at amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>
Reviewed-by: Huang Rui <ray.huang at amd.com>
---
drivers/gpu/drm/amd/amdgpu/Makefile | 3 +-
drivers/gpu/drm/amd/amdgpu/df_v3_6.c | 116 +++++++++++++++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/df_v3_6.h | 40 ++++++++++++
3 files changed, 158 insertions(+), 1 deletion(-)
create mode 100644 drivers/gpu/drm/amd/amdgpu/df_v3_6.c
create mode 100644 drivers/gpu/drm/amd/amdgpu/df_v3_6.h
diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
index 1dd740b76d41..4ed943df2461 100644
--- a/drivers/gpu/drm/amd/amdgpu/Makefile
+++ b/drivers/gpu/drm/amd/amdgpu/Makefile
@@ -67,7 +67,8 @@ amdgpu-y += \
# add DF block
amdgpu-y += \
- df_v1_7.o
+ df_v1_7.o \
+ df_v3_6.o
# add GMC block
amdgpu-y += \
diff --git a/drivers/gpu/drm/amd/amdgpu/df_v3_6.c b/drivers/gpu/drm/amd/amdgpu/df_v3_6.c
new file mode 100644
index 000000000000..60608b3df881
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/df_v3_6.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+#include "amdgpu.h"
+#include "df_v3_6.h"
+
+#include "df/df_3_6_default.h"
+#include "df/df_3_6_offset.h"
+#include "df/df_3_6_sh_mask.h"
+
+static u32 df_v3_6_channel_number[] = {1, 2, 0, 4, 0, 8, 0,
+ 16, 32, 0, 0, 0, 2, 4, 8};
+
+static void df_v3_6_init(struct amdgpu_device *adev)
+{
+}
+
+static void df_v3_6_enable_broadcast_mode(struct amdgpu_device *adev,
+ bool enable)
+{
+ u32 tmp;
+
+ if (enable) {
+ tmp = RREG32_SOC15(DF, 0, mmFabricConfigAccessControl);
+ tmp &= ~FabricConfigAccessControl__CfgRegInstAccEn_MASK;
+ WREG32_SOC15(DF, 0, mmFabricConfigAccessControl, tmp);
+ } else
+ WREG32_SOC15(DF, 0, mmFabricConfigAccessControl,
+ mmFabricConfigAccessControl_DEFAULT);
+}
+
+static u32 df_v3_6_get_fb_channel_number(struct amdgpu_device *adev)
+{
+ u32 tmp;
+
+ tmp = RREG32_SOC15(DF, 0, mmDF_CS_UMC_AON0_DramBaseAddress0);
+ tmp &= DF_CS_UMC_AON0_DramBaseAddress0__IntLvNumChan_MASK;
+ tmp >>= DF_CS_UMC_AON0_DramBaseAddress0__IntLvNumChan__SHIFT;
+
+ return tmp;
+}
+
+static u32 df_v3_6_get_hbm_channel_number(struct amdgpu_device *adev)
+{
+ int fb_channel_number;
+
+ fb_channel_number = adev->df_funcs->get_fb_channel_number(adev);
+ if (fb_channel_number > ARRAY_SIZE(df_v3_6_channel_number))
+ fb_channel_number = 0;
+
+ return df_v3_6_channel_number[fb_channel_number];
+}
+
+static void df_v3_6_update_medium_grain_clock_gating(struct amdgpu_device *adev,
+ bool enable)
+{
+ u32 tmp;
+
+ /* Put DF on broadcast mode */
+ adev->df_funcs->enable_broadcast_mode(adev, true);
+
+ if (enable && (adev->cg_flags & AMD_CG_SUPPORT_DF_MGCG)) {
+ tmp = RREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater);
+ tmp &= ~DF_PIE_AON0_DfGlobalClkGater__MGCGMode_MASK;
+ tmp |= DF_V3_6_MGCG_ENABLE_15_CYCLE_DELAY;
+ WREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater, tmp);
+ } else {
+ tmp = RREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater);
+ tmp &= ~DF_PIE_AON0_DfGlobalClkGater__MGCGMode_MASK;
+ tmp |= DF_V3_6_MGCG_DISABLE;
+ WREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater, tmp);
+ }
+
+ /* Exit broadcast mode */
+ adev->df_funcs->enable_broadcast_mode(adev, false);
+}
+
+static void df_v3_6_get_clockgating_state(struct amdgpu_device *adev,
+ u32 *flags)
+{
+ u32 tmp;
+
+ /* AMD_CG_SUPPORT_DF_MGCG */
+ tmp = RREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater);
+ if (tmp & DF_V3_6_MGCG_ENABLE_15_CYCLE_DELAY)
+ *flags |= AMD_CG_SUPPORT_DF_MGCG;
+}
+
+const struct amdgpu_df_funcs df_v3_6_funcs = {
+ .init = df_v3_6_init,
+ .enable_broadcast_mode = df_v3_6_enable_broadcast_mode,
+ .get_fb_channel_number = df_v3_6_get_fb_channel_number,
+ .get_hbm_channel_number = df_v3_6_get_hbm_channel_number,
+ .update_medium_grain_clock_gating =
+ df_v3_6_update_medium_grain_clock_gating,
+ .get_clockgating_state = df_v3_6_get_clockgating_state,
+};
diff --git a/drivers/gpu/drm/amd/amdgpu/df_v3_6.h b/drivers/gpu/drm/amd/amdgpu/df_v3_6.h
new file mode 100644
index 000000000000..e79c58e5efcb
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/df_v3_6.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __DF_V3_6_H__
+#define __DF_V3_6_H__
+
+#include "soc15_common.h"
+
+enum DF_V3_6_MGCG {
+ DF_V3_6_MGCG_DISABLE = 0,
+ DF_V3_6_MGCG_ENABLE_00_CYCLE_DELAY = 1,
+ DF_V3_6_MGCG_ENABLE_01_CYCLE_DELAY = 2,
+ DF_V3_6_MGCG_ENABLE_15_CYCLE_DELAY = 13,
+ DF_V3_6_MGCG_ENABLE_31_CYCLE_DELAY = 14,
+ DF_V3_6_MGCG_ENABLE_63_CYCLE_DELAY = 15
+};
+
+extern const struct amdgpu_df_funcs df_v3_6_funcs;
+
+#endif
--
2.13.6
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