[PATCH 1/5] drm/amdgpu: add hdp version 4 functions
Likun Gao
likun.gao at amd.com
Mon Dec 28 09:18:30 UTC 2020
From: Likun Gao <Likun.Gao at amd.com>
Unfiy hdp related function into hdp structure for hdp version 4.
Signed-off-by: Likun Gao <Likun.Gao at amd.com>
Change-Id: I0462a24f0fae08b3d36c01a8f0df81599377c048
---
drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c | 150 ++++++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/hdp_v4_0.h | 31 ++++++
2 files changed, 181 insertions(+)
create mode 100644 drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c
create mode 100644 drivers/gpu/drm/amd/amdgpu/hdp_v4_0.h
diff --git a/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c b/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c
new file mode 100644
index 000000000000..58cf0670d8af
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c
@@ -0,0 +1,150 @@
+/*
+ * Copyright 2020 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 "amdgpu_atombios.h"
+#include "hdp_v4_0.h"
+#include "amdgpu_ras.h"
+
+#include "hdp/hdp_4_0_offset.h"
+#include "hdp/hdp_4_0_sh_mask.h"
+#include <uapi/linux/kfd_ioctl.h>
+
+#define mmBIF_BX_PF0_HDP_MEM_COHERENCY_FLUSH_CNTL 0x00f7
+#define mmBIF_BX_PF0_HDP_MEM_COHERENCY_FLUSH_CNTL_BASE_IDX 2
+/* for Vega20 register name change */
+#define mmHDP_MEM_POWER_CTRL 0x00d4
+#define HDP_MEM_POWER_CTRL__IPH_MEM_POWER_CTRL_EN_MASK 0x00000001L
+#define HDP_MEM_POWER_CTRL__IPH_MEM_POWER_LS_EN_MASK 0x00000002L
+#define HDP_MEM_POWER_CTRL__RC_MEM_POWER_CTRL_EN_MASK 0x00010000L
+#define HDP_MEM_POWER_CTRL__RC_MEM_POWER_LS_EN_MASK 0x00020000L
+#define mmHDP_MEM_POWER_CTRL_BASE_IDX 0
+
+static void hdp_v4_0_flush_hdp(struct amdgpu_device *adev,
+ struct amdgpu_ring *ring)
+{
+ uint32_t reg_addr;
+
+ if (adev->flags & AMD_IS_APU ||
+ adev->asic_type == CHIP_VEGA20 ||
+ adev->asic_type == CHIP_ARCTURUS)
+ reg_addr = (adev->rmmio_remap.reg_offset +
+ KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2;
+ else
+ reg_addr = SOC15_REG_OFFSET(NBIO, 0,
+ mmBIF_BX_PF0_HDP_MEM_COHERENCY_FLUSH_CNTL);
+
+ if (!ring || !ring->funcs->emit_wreg)
+ WREG32_NO_KIQ(reg_addr, 0);
+ else
+ amdgpu_ring_emit_wreg(ring, reg_addr, 0);
+}
+
+static void hdp_v4_0_invalidate_hdp(struct amdgpu_device *adev,
+ struct amdgpu_ring *ring)
+{
+ if (!ring || !ring->funcs->emit_wreg)
+ WREG32_SOC15_NO_KIQ(HDP, 0, mmHDP_READ_CACHE_INVALIDATE, 1);
+ else
+ amdgpu_ring_emit_wreg(ring, SOC15_REG_OFFSET(
+ HDP, 0, mmHDP_READ_CACHE_INVALIDATE), 1);
+}
+
+static void hdp_v4_0_reset_ras_error_count(struct amdgpu_device *adev)
+{
+ if (!amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__HDP))
+ return;
+ /*read back hdp ras counter to reset it to 0 */
+ RREG32_SOC15(HDP, 0, mmHDP_EDC_CNT);
+}
+
+static void hdp_v4_0_update_clock_gating(struct amdgpu_device *adev,
+ bool enable)
+{
+ uint32_t def, data;
+
+ if (adev->asic_type == CHIP_VEGA20 ||
+ adev->asic_type == CHIP_ARCTURUS ||
+ adev->asic_type == CHIP_RENOIR) {
+ def = data = RREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MEM_POWER_CTRL));
+
+ if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
+ data |= HDP_MEM_POWER_CTRL__IPH_MEM_POWER_CTRL_EN_MASK |
+ HDP_MEM_POWER_CTRL__IPH_MEM_POWER_LS_EN_MASK |
+ HDP_MEM_POWER_CTRL__RC_MEM_POWER_CTRL_EN_MASK |
+ HDP_MEM_POWER_CTRL__RC_MEM_POWER_LS_EN_MASK;
+ else
+ data &= ~(HDP_MEM_POWER_CTRL__IPH_MEM_POWER_CTRL_EN_MASK |
+ HDP_MEM_POWER_CTRL__IPH_MEM_POWER_LS_EN_MASK |
+ HDP_MEM_POWER_CTRL__RC_MEM_POWER_CTRL_EN_MASK |
+ HDP_MEM_POWER_CTRL__RC_MEM_POWER_LS_EN_MASK);
+
+ if (def != data)
+ WREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MEM_POWER_CTRL), data);
+ } else {
+ def = data = RREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MEM_POWER_LS));
+
+ if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
+ data |= HDP_MEM_POWER_LS__LS_ENABLE_MASK;
+ else
+ data &= ~HDP_MEM_POWER_LS__LS_ENABLE_MASK;
+
+ if (def != data)
+ WREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MEM_POWER_LS), data);
+ }
+}
+
+static void hdp_v4_0_get_clockgating_state(struct amdgpu_device *adev,
+ u32 *flags)
+{
+ int data;
+
+ /* AMD_CG_SUPPORT_HDP_LS */
+ data = RREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MEM_POWER_LS));
+ if (data & HDP_MEM_POWER_LS__LS_ENABLE_MASK)
+ *flags |= AMD_CG_SUPPORT_HDP_LS;
+}
+
+static void hdp_v4_0_init_registers(struct amdgpu_device *adev)
+{
+ switch (adev->asic_type) {
+ case CHIP_ARCTURUS:
+ WREG32_FIELD15(HDP, 0, HDP_MMHUB_CNTL, HDP_MMHUB_GCC, 1);
+ break;
+ default:
+ break;
+ }
+
+ WREG32_FIELD15(HDP, 0, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 1);
+
+ WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE, (adev->gmc.vram_start >> 8));
+ WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE_HI, (adev->gmc.vram_start >> 40));
+}
+
+const struct amdgpu_hdp_funcs hdp_v4_0_funcs = {
+ .flush_hdp = hdp_v4_0_flush_hdp,
+ .invalidate_hdp = hdp_v4_0_invalidate_hdp,
+ .reset_ras_error_count = hdp_v4_0_reset_ras_error_count,
+ .update_clock_gating = hdp_v4_0_update_clock_gating,
+ .get_clock_gating_state = hdp_v4_0_get_clockgating_state,
+ .init_registers = hdp_v4_0_init_registers,
+};
diff --git a/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.h b/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.h
new file mode 100644
index 000000000000..d1e6399e8c46
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2020 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 __HDP_V4_0_H__
+#define __HDP_V4_0_H__
+
+#include "soc15_common.h"
+
+extern const struct amdgpu_hdp_funcs hdp_v4_0_funcs;
+
+#endif
--
2.25.1
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