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authorDave Airlie <airlied@redhat.com>2019-06-27 12:33:56 +1000
committerDave Airlie <airlied@redhat.com>2019-06-27 12:33:57 +1000
commit14808a12bdbdc21143eba70ea07830197b3a04ff (patch)
tree41ffee477c66169fd8697b5cf57821813daf4dd8 /drivers/gpu/drm/amd/amdgpu/athub_v2_0.c
parentb22342ea07e6b9d867c39c84d3d774add88079c1 (diff)
parenta201b6ac20ff99e1c4b606f54874a20694e3b0c4 (diff)
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Merge tag 'drm-next-5.3-2019-06-25' of git://people.freedesktop.org/~agd5f/linux into drm-next
drm-next-5.3-2019-06-25: Merge drm-next amdgpu: - SR-IOV L1 policy fixes - Removed no longer needed vram_page_split module parameter - Add module parameter to override default ABM level - Gamma fixes - No need to check return values for debugfs - Improve HMM error handling - Avoid possible OOM situations when lots of thread are submitting with memory contention - Improve hw i2c access abritration - DSC (Display Stream Compression) support in DC - Initial navi10 support * DC support * GFX/Compute support * SDMA support * Power Management support * VCN support - Static checker fixes - Misc cleanups - fix long udelay on arm amdkfd: - Implement priority controls for gfx9 - Enable VEGAM - Rework mqd allocation and init - Circular locking fix - Fix SDMA queue allocation race condition - No need to check return values for debugfs - Add proc style process information - Initial navi10 support radeon: - No need to check return values for debugfs UAPI changes: - GDDR6 added to vram type query - New Navi10 details added gpu info query - Navi family added to asic family query Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190625195520.3817-1-alexander.deucher@amd.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/athub_v2_0.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/athub_v2_0.c101
1 files changed, 101 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/athub_v2_0.c b/drivers/gpu/drm/amd/amdgpu/athub_v2_0.c
new file mode 100644
index 000000000000..89b32b6b81c8
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/athub_v2_0.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2019 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_v2_0.h"
+
+#include "athub/athub_2_0_0_offset.h"
+#include "athub/athub_2_0_0_sh_mask.h"
+#include "athub/athub_2_0_0_default.h"
+#include "navi10_enum.h"
+
+#include "soc15_common.h"
+
+static void
+athub_v2_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
+ bool enable)
+{
+ uint32_t def, data;
+
+ def = data = RREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL);
+
+ if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
+ data |= ATHUB_MISC_CNTL__CG_ENABLE_MASK;
+ else
+ data &= ~ATHUB_MISC_CNTL__CG_ENABLE_MASK;
+
+ if (def != data)
+ WREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL, data);
+}
+
+static void
+athub_v2_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
+ bool enable)
+{
+ uint32_t def, data;
+
+ def = data = RREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL);
+
+ if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS) &&
+ (adev->cg_flags & AMD_CG_SUPPORT_HDP_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, mmATHUB_MISC_CNTL, data);
+}
+
+int athub_v2_0_set_clockgating(struct amdgpu_device *adev,
+ enum amd_clockgating_state state)
+{
+ if (amdgpu_sriov_vf(adev))
+ return 0;
+
+ switch (adev->asic_type) {
+ case CHIP_NAVI10:
+ athub_v2_0_update_medium_grain_clock_gating(adev,
+ state == AMD_CG_STATE_GATE ? true : false);
+ athub_v2_0_update_medium_grain_light_sleep(adev,
+ state == AMD_CG_STATE_GATE ? true : false);
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+void athub_v2_0_get_clockgating(struct amdgpu_device *adev, u32 *flags)
+{
+ int data;
+
+ /* AMD_CG_SUPPORT_ATHUB_MGCG */
+ data = RREG32_SOC15(ATHUB, 0, mmATHUB_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;
+}