[PATCH 5/5] drm/amdgpu: add soc21 common ip block v2
Alex Deucher
alexander.deucher at amd.com
Tue Apr 26 18:52:55 UTC 2022
From: "Stanley.Yang" <Stanley.Yang at amd.com>
This adds soc21 common ip block support
Changed from v1:
Switch WREG32/RREG32_PCIE to use indirect reg access
helper for sco15 and onwards
Signed-off-by: Stanley.Yang <Stanley.Yang at amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/amd/amdgpu/Makefile | 2 +-
drivers/gpu/drm/amd/amdgpu/soc21.c | 620 ++++++++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/soc21.h | 30 ++
3 files changed, 651 insertions(+), 1 deletion(-)
create mode 100644 drivers/gpu/drm/amd/amdgpu/soc21.c
create mode 100644 drivers/gpu/drm/amd/amdgpu/soc21.h
diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
index b525f9be9326..2b454e7d7a76 100644
--- a/drivers/gpu/drm/amd/amdgpu/Makefile
+++ b/drivers/gpu/drm/amd/amdgpu/Makefile
@@ -74,7 +74,7 @@ amdgpu-$(CONFIG_DRM_AMDGPU_SI)+= si.o gmc_v6_0.o gfx_v6_0.o si_ih.o si_dma.o dce
amdgpu-y += \
vi.o mxgpu_vi.o nbio_v6_1.o soc15.o emu_soc.o mxgpu_ai.o nbio_v7_0.o vega10_reg_init.o \
vega20_reg_init.o nbio_v7_4.o nbio_v2_3.o nv.o arct_reg_init.o mxgpu_nv.o \
- nbio_v7_2.o hdp_v4_0.o hdp_v5_0.o aldebaran_reg_init.o aldebaran.o
+ nbio_v7_2.o hdp_v4_0.o hdp_v5_0.o aldebaran_reg_init.o aldebaran.o soc21.o
# add DF block
amdgpu-y += \
diff --git a/drivers/gpu/drm/amd/amdgpu/soc21.c b/drivers/gpu/drm/amd/amdgpu/soc21.c
new file mode 100644
index 000000000000..a139fd1d3127
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/soc21.c
@@ -0,0 +1,620 @@
+/*
+ * 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 <linux/firmware.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+
+#include "amdgpu.h"
+#include "amdgpu_atombios.h"
+#include "amdgpu_ih.h"
+#include "amdgpu_uvd.h"
+#include "amdgpu_vce.h"
+#include "amdgpu_ucode.h"
+#include "amdgpu_psp.h"
+#include "amdgpu_smu.h"
+#include "atom.h"
+#include "amd_pcie.h"
+
+#include "gc/gc_11_0_0_offset.h"
+#include "gc/gc_11_0_0_sh_mask.h"
+#include "mp/mp_13_0_0_offset.h"
+
+#include "soc15.h"
+#include "soc15_common.h"
+
+static const struct amd_ip_funcs soc21_common_ip_funcs;
+
+/*
+ * Indirect registers accessor
+ */
+static u32 soc21_pcie_rreg(struct amdgpu_device *adev, u32 reg)
+{
+ unsigned long address, data;
+ address = adev->nbio.funcs->get_pcie_index_offset(adev);
+ data = adev->nbio.funcs->get_pcie_data_offset(adev);
+
+ return amdgpu_device_indirect_rreg(adev, address, data, reg);
+}
+
+static void soc21_pcie_wreg(struct amdgpu_device *adev, u32 reg, u32 v)
+{
+ unsigned long address, data;
+
+ address = adev->nbio.funcs->get_pcie_index_offset(adev);
+ data = adev->nbio.funcs->get_pcie_data_offset(adev);
+
+ amdgpu_device_indirect_wreg(adev, address, data, reg, v);
+}
+
+static u64 soc21_pcie_rreg64(struct amdgpu_device *adev, u32 reg)
+{
+ unsigned long address, data;
+ address = adev->nbio.funcs->get_pcie_index_offset(adev);
+ data = adev->nbio.funcs->get_pcie_data_offset(adev);
+
+ return amdgpu_device_indirect_rreg64(adev, address, data, reg);
+}
+
+static void soc21_pcie_wreg64(struct amdgpu_device *adev, u32 reg, u64 v)
+{
+ unsigned long address, data;
+
+ address = adev->nbio.funcs->get_pcie_index_offset(adev);
+ data = adev->nbio.funcs->get_pcie_data_offset(adev);
+
+ amdgpu_device_indirect_wreg64(adev, address, data, reg, v);
+}
+
+static u32 soc21_didt_rreg(struct amdgpu_device *adev, u32 reg)
+{
+ unsigned long flags, address, data;
+ u32 r;
+
+ address = SOC15_REG_OFFSET(GC, 0, regDIDT_IND_INDEX);
+ data = SOC15_REG_OFFSET(GC, 0, regDIDT_IND_DATA);
+
+ spin_lock_irqsave(&adev->didt_idx_lock, flags);
+ WREG32(address, (reg));
+ r = RREG32(data);
+ spin_unlock_irqrestore(&adev->didt_idx_lock, flags);
+ return r;
+}
+
+static void soc21_didt_wreg(struct amdgpu_device *adev, u32 reg, u32 v)
+{
+ unsigned long flags, address, data;
+
+ address = SOC15_REG_OFFSET(GC, 0, regDIDT_IND_INDEX);
+ data = SOC15_REG_OFFSET(GC, 0, regDIDT_IND_DATA);
+
+ spin_lock_irqsave(&adev->didt_idx_lock, flags);
+ WREG32(address, (reg));
+ WREG32(data, (v));
+ spin_unlock_irqrestore(&adev->didt_idx_lock, flags);
+}
+
+static u32 soc21_get_config_memsize(struct amdgpu_device *adev)
+{
+ return adev->nbio.funcs->get_memsize(adev);
+}
+
+static u32 soc21_get_xclk(struct amdgpu_device *adev)
+{
+ return adev->clock.spll.reference_freq;
+}
+
+
+void soc21_grbm_select(struct amdgpu_device *adev,
+ u32 me, u32 pipe, u32 queue, u32 vmid)
+{
+ u32 grbm_gfx_cntl = 0;
+ grbm_gfx_cntl = REG_SET_FIELD(grbm_gfx_cntl, GRBM_GFX_CNTL, PIPEID, pipe);
+ grbm_gfx_cntl = REG_SET_FIELD(grbm_gfx_cntl, GRBM_GFX_CNTL, MEID, me);
+ grbm_gfx_cntl = REG_SET_FIELD(grbm_gfx_cntl, GRBM_GFX_CNTL, VMID, vmid);
+ grbm_gfx_cntl = REG_SET_FIELD(grbm_gfx_cntl, GRBM_GFX_CNTL, QUEUEID, queue);
+
+ WREG32(SOC15_REG_OFFSET(GC, 0, regGRBM_GFX_CNTL), grbm_gfx_cntl);
+}
+
+static void soc21_vga_set_state(struct amdgpu_device *adev, bool state)
+{
+ /* todo */
+}
+
+static bool soc21_read_disabled_bios(struct amdgpu_device *adev)
+{
+ /* todo */
+ return false;
+}
+
+static struct soc15_allowed_register_entry soc21_allowed_read_registers[] = {
+ { SOC15_REG_ENTRY(GC, 0, regGRBM_STATUS)},
+ { SOC15_REG_ENTRY(GC, 0, regGRBM_STATUS2)},
+ { SOC15_REG_ENTRY(GC, 0, regGRBM_STATUS_SE0)},
+ { SOC15_REG_ENTRY(GC, 0, regGRBM_STATUS_SE1)},
+ { SOC15_REG_ENTRY(GC, 0, regGRBM_STATUS_SE2)},
+ { SOC15_REG_ENTRY(GC, 0, regGRBM_STATUS_SE3)},
+ { SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_STATUS_REG)},
+ { SOC15_REG_ENTRY(SDMA1, 0, regSDMA1_STATUS_REG)},
+ { SOC15_REG_ENTRY(GC, 0, regCP_STAT)},
+ { SOC15_REG_ENTRY(GC, 0, regCP_STALLED_STAT1)},
+ { SOC15_REG_ENTRY(GC, 0, regCP_STALLED_STAT2)},
+ { SOC15_REG_ENTRY(GC, 0, regCP_STALLED_STAT3)},
+ { SOC15_REG_ENTRY(GC, 0, regCP_CPF_BUSY_STAT)},
+ { SOC15_REG_ENTRY(GC, 0, regCP_CPF_STALLED_STAT1)},
+ { SOC15_REG_ENTRY(GC, 0, regCP_CPF_STATUS)},
+ { SOC15_REG_ENTRY(GC, 0, regCP_CPC_BUSY_STAT)},
+ { SOC15_REG_ENTRY(GC, 0, regCP_CPC_STALLED_STAT1)},
+ { SOC15_REG_ENTRY(GC, 0, regCP_CPC_STATUS)},
+ { SOC15_REG_ENTRY(GC, 0, regGB_ADDR_CONFIG)},
+};
+
+static uint32_t soc21_read_indexed_register(struct amdgpu_device *adev, u32 se_num,
+ u32 sh_num, u32 reg_offset)
+{
+ uint32_t val;
+
+ mutex_lock(&adev->grbm_idx_mutex);
+ if (se_num != 0xffffffff || sh_num != 0xffffffff)
+ amdgpu_gfx_select_se_sh(adev, se_num, sh_num, 0xffffffff);
+
+ val = RREG32(reg_offset);
+
+ if (se_num != 0xffffffff || sh_num != 0xffffffff)
+ amdgpu_gfx_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff);
+ mutex_unlock(&adev->grbm_idx_mutex);
+ return val;
+}
+
+static uint32_t soc21_get_register_value(struct amdgpu_device *adev,
+ bool indexed, u32 se_num,
+ u32 sh_num, u32 reg_offset)
+{
+ if (indexed) {
+ return soc21_read_indexed_register(adev, se_num, sh_num, reg_offset);
+ } else {
+ if (reg_offset == SOC15_REG_OFFSET(GC, 0, regGB_ADDR_CONFIG) && adev->gfx.config.gb_addr_config)
+ return adev->gfx.config.gb_addr_config;
+ return RREG32(reg_offset);
+ }
+}
+
+static int soc21_read_register(struct amdgpu_device *adev, u32 se_num,
+ u32 sh_num, u32 reg_offset, u32 *value)
+{
+ uint32_t i;
+ struct soc15_allowed_register_entry *en;
+
+ *value = 0;
+ for (i = 0; i < ARRAY_SIZE(soc21_allowed_read_registers); i++) {
+ en = &soc21_allowed_read_registers[i];
+ if (reg_offset !=
+ (adev->reg_offset[en->hwip][en->inst][en->seg] + en->reg_offset))
+ continue;
+
+ *value = soc21_get_register_value(adev,
+ soc21_allowed_read_registers[i].grbm_indexed,
+ se_num, sh_num, reg_offset);
+ return 0;
+ }
+ return -EINVAL;
+}
+
+#if 0
+static int soc21_asic_mode1_reset(struct amdgpu_device *adev)
+{
+ u32 i;
+ int ret = 0;
+
+ amdgpu_atombios_scratch_regs_engine_hung(adev, true);
+
+ /* disable BM */
+ pci_clear_master(adev->pdev);
+
+ amdgpu_device_cache_pci_state(adev->pdev);
+
+ if (amdgpu_dpm_is_mode1_reset_supported(adev)) {
+ dev_info(adev->dev, "GPU smu mode1 reset\n");
+ ret = amdgpu_dpm_mode1_reset(adev);
+ } else {
+ dev_info(adev->dev, "GPU psp mode1 reset\n");
+ ret = psp_gpu_reset(adev);
+ }
+
+ if (ret)
+ dev_err(adev->dev, "GPU mode1 reset failed\n");
+ amdgpu_device_load_pci_state(adev->pdev);
+
+ /* wait for asic to come out of reset */
+ for (i = 0; i < adev->usec_timeout; i++) {
+ u32 memsize = adev->nbio.funcs->get_memsize(adev);
+
+ if (memsize != 0xffffffff)
+ break;
+ udelay(1);
+ }
+
+ amdgpu_atombios_scratch_regs_engine_hung(adev, false);
+
+ return ret;
+}
+#endif
+
+static enum amd_reset_method
+soc21_asic_reset_method(struct amdgpu_device *adev)
+{
+ if (amdgpu_reset_method == AMD_RESET_METHOD_MODE1 ||
+ amdgpu_reset_method == AMD_RESET_METHOD_BACO)
+ return amdgpu_reset_method;
+
+ if (amdgpu_reset_method != -1)
+ dev_warn(adev->dev, "Specified reset method:%d isn't supported, using AUTO instead.\n",
+ amdgpu_reset_method);
+
+ switch (adev->ip_versions[MP1_HWIP][0]) {
+ case IP_VERSION(13, 0, 0):
+ return AMD_RESET_METHOD_MODE1;
+ default:
+ if (amdgpu_dpm_is_baco_supported(adev))
+ return AMD_RESET_METHOD_BACO;
+ else
+ return AMD_RESET_METHOD_MODE1;
+ }
+}
+
+static int soc21_asic_reset(struct amdgpu_device *adev)
+{
+ int ret = 0;
+
+ switch (soc21_asic_reset_method(adev)) {
+ case AMD_RESET_METHOD_PCI:
+ dev_info(adev->dev, "PCI reset\n");
+ ret = amdgpu_device_pci_reset(adev);
+ break;
+ case AMD_RESET_METHOD_BACO:
+ dev_info(adev->dev, "BACO reset\n");
+ ret = amdgpu_dpm_baco_reset(adev);
+ break;
+ default:
+ dev_info(adev->dev, "MODE1 reset\n");
+ ret = amdgpu_device_mode1_reset(adev);
+ break;
+ }
+
+ return ret;
+}
+
+static int soc21_set_uvd_clocks(struct amdgpu_device *adev, u32 vclk, u32 dclk)
+{
+ /* todo */
+ return 0;
+}
+
+static int soc21_set_vce_clocks(struct amdgpu_device *adev, u32 evclk, u32 ecclk)
+{
+ /* todo */
+ return 0;
+}
+
+static void soc21_pcie_gen3_enable(struct amdgpu_device *adev)
+{
+ if (pci_is_root_bus(adev->pdev->bus))
+ return;
+
+ if (amdgpu_pcie_gen2 == 0)
+ return;
+
+ if (!(adev->pm.pcie_gen_mask & (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
+ CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3)))
+ return;
+
+ /* todo */
+}
+
+static void soc21_program_aspm(struct amdgpu_device *adev)
+{
+
+ if (amdgpu_aspm == 0)
+ return;
+
+ /* todo */
+}
+
+static void soc21_enable_doorbell_aperture(struct amdgpu_device *adev,
+ bool enable)
+{
+ adev->nbio.funcs->enable_doorbell_aperture(adev, enable);
+ adev->nbio.funcs->enable_doorbell_selfring_aperture(adev, enable);
+}
+
+const struct amdgpu_ip_block_version soc21_common_ip_block =
+{
+ .type = AMD_IP_BLOCK_TYPE_COMMON,
+ .major = 1,
+ .minor = 0,
+ .rev = 0,
+ .funcs = &soc21_common_ip_funcs,
+};
+
+static uint32_t soc21_get_rev_id(struct amdgpu_device *adev)
+{
+ return adev->nbio.funcs->get_rev_id(adev);
+}
+
+static bool soc21_need_full_reset(struct amdgpu_device *adev)
+{
+ return true;
+}
+
+static bool soc21_need_reset_on_init(struct amdgpu_device *adev)
+{
+ u32 sol_reg;
+
+ if (adev->flags & AMD_IS_APU)
+ return false;
+
+ /* Check sOS sign of life register to confirm sys driver and sOS
+ * are already been loaded.
+ */
+ sol_reg = RREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_81);
+ if (sol_reg)
+ return true;
+
+ return false;
+}
+
+static uint64_t soc21_get_pcie_replay_count(struct amdgpu_device *adev)
+{
+
+ /* TODO
+ * dummy implement for pcie_replay_count sysfs interface
+ * */
+
+ return 0;
+}
+
+static void soc21_init_doorbell_index(struct amdgpu_device *adev)
+{
+ adev->doorbell_index.kiq = AMDGPU_NAVI10_DOORBELL_KIQ;
+ adev->doorbell_index.mec_ring0 = AMDGPU_NAVI10_DOORBELL_MEC_RING0;
+ adev->doorbell_index.mec_ring1 = AMDGPU_NAVI10_DOORBELL_MEC_RING1;
+ adev->doorbell_index.mec_ring2 = AMDGPU_NAVI10_DOORBELL_MEC_RING2;
+ adev->doorbell_index.mec_ring3 = AMDGPU_NAVI10_DOORBELL_MEC_RING3;
+ adev->doorbell_index.mec_ring4 = AMDGPU_NAVI10_DOORBELL_MEC_RING4;
+ adev->doorbell_index.mec_ring5 = AMDGPU_NAVI10_DOORBELL_MEC_RING5;
+ adev->doorbell_index.mec_ring6 = AMDGPU_NAVI10_DOORBELL_MEC_RING6;
+ adev->doorbell_index.mec_ring7 = AMDGPU_NAVI10_DOORBELL_MEC_RING7;
+ adev->doorbell_index.userqueue_start = AMDGPU_NAVI10_DOORBELL_USERQUEUE_START;
+ adev->doorbell_index.userqueue_end = AMDGPU_NAVI10_DOORBELL_USERQUEUE_END;
+ adev->doorbell_index.gfx_ring0 = AMDGPU_NAVI10_DOORBELL_GFX_RING0;
+ adev->doorbell_index.gfx_ring1 = AMDGPU_NAVI10_DOORBELL_GFX_RING1;
+ adev->doorbell_index.mes_ring = AMDGPU_NAVI10_DOORBELL_MES_RING;
+ adev->doorbell_index.sdma_engine[0] = AMDGPU_NAVI10_DOORBELL_sDMA_ENGINE0;
+ adev->doorbell_index.sdma_engine[1] = AMDGPU_NAVI10_DOORBELL_sDMA_ENGINE1;
+ adev->doorbell_index.ih = AMDGPU_NAVI10_DOORBELL_IH;
+ adev->doorbell_index.vcn.vcn_ring0_1 = AMDGPU_NAVI10_DOORBELL64_VCN0_1;
+ adev->doorbell_index.vcn.vcn_ring2_3 = AMDGPU_NAVI10_DOORBELL64_VCN2_3;
+ adev->doorbell_index.vcn.vcn_ring4_5 = AMDGPU_NAVI10_DOORBELL64_VCN4_5;
+ adev->doorbell_index.vcn.vcn_ring6_7 = AMDGPU_NAVI10_DOORBELL64_VCN6_7;
+ adev->doorbell_index.first_non_cp = AMDGPU_NAVI10_DOORBELL64_FIRST_NON_CP;
+ adev->doorbell_index.last_non_cp = AMDGPU_NAVI10_DOORBELL64_LAST_NON_CP;
+
+ adev->doorbell_index.max_assignment = AMDGPU_NAVI10_DOORBELL_MAX_ASSIGNMENT << 1;
+ adev->doorbell_index.sdma_doorbell_range = 20;
+}
+
+static void soc21_pre_asic_init(struct amdgpu_device *adev)
+{
+}
+
+static const struct amdgpu_asic_funcs soc21_asic_funcs =
+{
+ .read_disabled_bios = &soc21_read_disabled_bios,
+ .read_bios_from_rom = &amdgpu_soc15_read_bios_from_rom,
+ .read_register = &soc21_read_register,
+ .reset = &soc21_asic_reset,
+ .reset_method = &soc21_asic_reset_method,
+ .set_vga_state = &soc21_vga_set_state,
+ .get_xclk = &soc21_get_xclk,
+ .set_uvd_clocks = &soc21_set_uvd_clocks,
+ .set_vce_clocks = &soc21_set_vce_clocks,
+ .get_config_memsize = &soc21_get_config_memsize,
+ .init_doorbell_index = &soc21_init_doorbell_index,
+ .need_full_reset = &soc21_need_full_reset,
+ .need_reset_on_init = &soc21_need_reset_on_init,
+ .get_pcie_replay_count = &soc21_get_pcie_replay_count,
+ .supports_baco = &amdgpu_dpm_is_baco_supported,
+ .pre_asic_init = &soc21_pre_asic_init,
+};
+
+static int soc21_common_early_init(void *handle)
+{
+#define MMIO_REG_HOLE_OFFSET (0x80000 - PAGE_SIZE)
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ adev->rmmio_remap.reg_offset = MMIO_REG_HOLE_OFFSET;
+ adev->rmmio_remap.bus_addr = adev->rmmio_base + MMIO_REG_HOLE_OFFSET;
+ adev->smc_rreg = NULL;
+ adev->smc_wreg = NULL;
+ adev->pcie_rreg = &soc21_pcie_rreg;
+ adev->pcie_wreg = &soc21_pcie_wreg;
+ adev->pcie_rreg64 = &soc21_pcie_rreg64;
+ adev->pcie_wreg64 = &soc21_pcie_wreg64;
+
+ /* TODO: will add them during VCN v2 implementation */
+ adev->uvd_ctx_rreg = NULL;
+ adev->uvd_ctx_wreg = NULL;
+
+ adev->didt_rreg = &soc21_didt_rreg;
+ adev->didt_wreg = &soc21_didt_wreg;
+
+ adev->asic_funcs = &soc21_asic_funcs;
+
+ adev->rev_id = soc21_get_rev_id(adev);
+ adev->external_rev_id = 0xff;
+ switch (adev->ip_versions[GC_HWIP][0]) {
+ case IP_VERSION(11, 0, 0):
+ adev->cg_flags = 0;
+ adev->pg_flags = 0;
+ adev->external_rev_id = adev->rev_id + 0x1; // TODO: need update
+ break;
+ default:
+ /* FIXME: not supported yet */
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int soc21_common_late_init(void *handle)
+{
+ return 0;
+}
+
+static int soc21_common_sw_init(void *handle)
+{
+ return 0;
+}
+
+static int soc21_common_sw_fini(void *handle)
+{
+ return 0;
+}
+
+static int soc21_common_hw_init(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ /* enable pcie gen2/3 link */
+ soc21_pcie_gen3_enable(adev);
+ /* enable aspm */
+ soc21_program_aspm(adev);
+ /* setup nbio registers */
+ adev->nbio.funcs->init_registers(adev);
+ /* remap HDP registers to a hole in mmio space,
+ * for the purpose of expose those registers
+ * to process space
+ */
+ if (adev->nbio.funcs->remap_hdp_registers)
+ adev->nbio.funcs->remap_hdp_registers(adev);
+ /* enable the doorbell aperture */
+ soc21_enable_doorbell_aperture(adev, true);
+
+ return 0;
+}
+
+static int soc21_common_hw_fini(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ /* disable the doorbell aperture */
+ soc21_enable_doorbell_aperture(adev, false);
+
+ return 0;
+}
+
+static int soc21_common_suspend(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ return soc21_common_hw_fini(adev);
+}
+
+static int soc21_common_resume(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ return soc21_common_hw_init(adev);
+}
+
+static bool soc21_common_is_idle(void *handle)
+{
+ return true;
+}
+
+static int soc21_common_wait_for_idle(void *handle)
+{
+ return 0;
+}
+
+static int soc21_common_soft_reset(void *handle)
+{
+ return 0;
+}
+
+static int soc21_common_set_clockgating_state(void *handle,
+ enum amd_clockgating_state state)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ switch (adev->ip_versions[NBIO_HWIP][0]) {
+ case IP_VERSION(4, 3, 0):
+ adev->nbio.funcs->update_medium_grain_clock_gating(adev,
+ state == AMD_CG_STATE_GATE);
+ adev->nbio.funcs->update_medium_grain_light_sleep(adev,
+ state == AMD_CG_STATE_GATE);
+ adev->hdp.funcs->update_clock_gating(adev,
+ state == AMD_CG_STATE_GATE);
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
+
+static int soc21_common_set_powergating_state(void *handle,
+ enum amd_powergating_state state)
+{
+ /* TODO */
+ return 0;
+}
+
+static void soc21_common_get_clockgating_state(void *handle, u64 *flags)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ adev->nbio.funcs->get_clockgating_state(adev, flags);
+
+ adev->hdp.funcs->get_clock_gating_state(adev, flags);
+
+ return;
+}
+
+static const struct amd_ip_funcs soc21_common_ip_funcs = {
+ .name = "soc21_common",
+ .early_init = soc21_common_early_init,
+ .late_init = soc21_common_late_init,
+ .sw_init = soc21_common_sw_init,
+ .sw_fini = soc21_common_sw_fini,
+ .hw_init = soc21_common_hw_init,
+ .hw_fini = soc21_common_hw_fini,
+ .suspend = soc21_common_suspend,
+ .resume = soc21_common_resume,
+ .is_idle = soc21_common_is_idle,
+ .wait_for_idle = soc21_common_wait_for_idle,
+ .soft_reset = soc21_common_soft_reset,
+ .set_clockgating_state = soc21_common_set_clockgating_state,
+ .set_powergating_state = soc21_common_set_powergating_state,
+ .get_clockgating_state = soc21_common_get_clockgating_state,
+};
diff --git a/drivers/gpu/drm/amd/amdgpu/soc21.h b/drivers/gpu/drm/amd/amdgpu/soc21.h
new file mode 100644
index 000000000000..4c8067af1b65
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/soc21.h
@@ -0,0 +1,30 @@
+/*
+ * 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.
+ *
+ */
+#ifndef __SOC21_H__
+#define __SOC21_H__
+
+extern const struct amdgpu_ip_block_version soc21_common_ip_block;
+
+void soc21_grbm_select(struct amdgpu_device *adev,
+ u32 me, u32 pipe, u32 queue, u32 vmid);
+#endif
--
2.35.1
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