drm/amdgpu: add hdp version 4 functions

Unify hdp related function into hdp structure for hdp version 4.
V2: Add function to remap hdp registers for nbio version 6.1

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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 (file)
index 0000000..e46621f
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c
@@ -0,0 +1,137 @@
+/*
+ * 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>
+
+/* 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)
+{
+       if (!ring || !ring->funcs->emit_wreg)
+               WREG32_NO_KIQ((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0);
+       else
+               amdgpu_ring_emit_wreg(ring, (adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 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_VEGA10 ||
+           adev->asic_type == CHIP_VEGA12 ||
+           adev->asic_type == CHIP_RAVEN) {
+               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);
+       } else {
+               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);
+       }
+}
+
+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 (file)
index 0000000..d1e6399
--- /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

diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c b/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c
index d2f1fe5..7fc5043 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c
@@ -29,6 +29,15 @@
 #include "nbio/nbio_6_1_sh_mask.h"
 #include "nbio/nbio_6_1_smn.h"
 #include "vega10_enum.h"
+#include <uapi/linux/kfd_ioctl.h>
+
+static void nbio_v6_1_remap_hdp_registers(struct amdgpu_device *adev)
+{
+       WREG32_SOC15(NBIO, 0, mmREMAP_HDP_MEM_FLUSH_CNTL,
+               adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL);
+       WREG32_SOC15(NBIO, 0, mmREMAP_HDP_REG_FLUSH_CNTL,
+               adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL);
+}
 
 static u32 nbio_v6_1_get_rev_id(struct amdgpu_device *adev)
 {
@@ -277,4 +286,5 @@ const struct amdgpu_nbio_funcs nbio_v6_1_funcs = {
        .get_clockgating_state = nbio_v6_1_get_clockgating_state,
        .ih_control = nbio_v6_1_ih_control,
        .init_registers = nbio_v6_1_init_registers,
+       .remap_hdp_registers = nbio_v6_1_remap_hdp_registers,
 };