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authorDave Airlie <airlied@redhat.com>2022-05-19 14:09:46 +1000
committerDave Airlie <airlied@redhat.com>2022-05-19 14:09:54 +1000
commit00df0514ab13813655a6fbaba85425f8f4780be2 (patch)
tree85e9e8908b702575ff4a7e4a58cf36dcca93c204 /drivers/gpu/drm/amd/amdgpu/athub_v3_0.c
parentf8122500a039abeabfff41b0ad8b6a2c94c1107d (diff)
parent0223e516470aa0589da6c03e6d177c10594cabbd (diff)
Merge tag 'amd-drm-next-5.19-2022-05-18' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-5.19-2022-05-18: amdgpu: - Misc code cleanups - Additional SMU 13.x enablement - Smartshift fixes - GFX11 fixes - Support for SMU 13.0.4 - SMU mutex fix - Suspend/resume fix amdkfd: - static checker fix - Doorbell/MMIO resource handling fix Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220518205621.5741-1-alexander.deucher@amd.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/athub_v3_0.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/athub_v3_0.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/athub_v3_0.c b/drivers/gpu/drm/amd/amdgpu/athub_v3_0.c
new file mode 100644
index 000000000000..33a8a7365aef
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/athub_v3_0.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright 2021 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 "athub_v3_0.h"
+#include "athub/athub_3_0_0_offset.h"
+#include "athub/athub_3_0_0_sh_mask.h"
+#include "navi10_enum.h"
+#include "soc15_common.h"
+
+static void
+athub_v3_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
+ bool enable)
+{
+ uint32_t def, data;
+
+ def = data = RREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL);
+
+ if (enable && (adev->cg_flags & AMD_CG_SUPPORT_ATHUB_MGCG))
+ data |= ATHUB_MISC_CNTL__CG_ENABLE_MASK;
+ else
+ data &= ~ATHUB_MISC_CNTL__CG_ENABLE_MASK;
+
+ if (def != data)
+ WREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL, data);
+}
+
+static void
+athub_v3_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
+ bool enable)
+{
+ uint32_t def, data;
+
+ def = data = RREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL);
+
+ if (enable && (adev->cg_flags & AMD_CG_SUPPORT_ATHUB_LS))
+ data |= ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK;
+ else
+ data &= ~ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK;
+
+ if (def != data)
+ WREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL, data);
+}
+
+int athub_v3_0_set_clockgating(struct amdgpu_device *adev,
+ enum amd_clockgating_state state)
+{
+ if (amdgpu_sriov_vf(adev))
+ return 0;
+
+ switch (adev->ip_versions[ATHUB_HWIP][0]) {
+ case IP_VERSION(3, 0, 0):
+ case IP_VERSION(3, 0, 2):
+ athub_v3_0_update_medium_grain_clock_gating(adev,
+ state == AMD_CG_STATE_GATE);
+ athub_v3_0_update_medium_grain_light_sleep(adev,
+ state == AMD_CG_STATE_GATE);
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+void athub_v3_0_get_clockgating(struct amdgpu_device *adev, u64 *flags)
+{
+ int data;
+
+ /* AMD_CG_SUPPORT_ATHUB_MGCG */
+ data = RREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL);
+ if (data & ATHUB_MISC_CNTL__CG_ENABLE_MASK)
+ *flags |= AMD_CG_SUPPORT_ATHUB_MGCG;
+
+ /* AMD_CG_SUPPORT_ATHUB_LS */
+ if (data & ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK)
+ *flags |= AMD_CG_SUPPORT_ATHUB_LS;
+}