Signed-off-by: John Bridgman <john.bridg...@amd.com>
Signed-off-by: Shaoyun Liu <shaoyun....@amd.com>
Signed-off-by: Jay Cornwall <jay.cornw...@amd.com>
Signed-off-by: Yong Zhao <yong.z...@amd.com>
Signed-off-by: Felix Kuehling <felix.kuehl...@amd.com>
---
 MAINTAINERS                                       |    1 +
 drivers/gpu/drm/amd/amdgpu/Makefile               |    3 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c        |    4 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h        |    1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c | 1043 +++++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c             |    1 +
 6 files changed, 1052 insertions(+), 1 deletion(-)
 create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 6804170..9bfb765 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -766,6 +766,7 @@ F:  drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
 F:     drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
 F:     drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
 F:     drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
+F:     drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c
 F:     drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c
 F:     drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
 F:     drivers/gpu/drm/amd/amdkfd/
diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile 
b/drivers/gpu/drm/amd/amdgpu/Makefile
index 2ca2b51..f300202 100644
--- a/drivers/gpu/drm/amd/amdgpu/Makefile
+++ b/drivers/gpu/drm/amd/amdgpu/Makefile
@@ -130,7 +130,8 @@ amdgpu-y += \
         amdgpu_amdkfd.o \
         amdgpu_amdkfd_fence.o \
         amdgpu_amdkfd_gpuvm.o \
-        amdgpu_amdkfd_gfx_v8.o
+        amdgpu_amdkfd_gfx_v8.o \
+        amdgpu_amdkfd_gfx_v9.o
 
 # add cgs
 amdgpu-y += amdgpu_cgs.o
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index 4d36203..fcd10db 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -92,6 +92,10 @@ void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev)
        case CHIP_POLARIS11:
                kfd2kgd = amdgpu_amdkfd_gfx_8_0_get_functions();
                break;
+       case CHIP_VEGA10:
+       case CHIP_RAVEN:
+               kfd2kgd = amdgpu_amdkfd_gfx_9_0_get_functions();
+               break;
        default:
                dev_dbg(adev->dev, "kfd not supported on this ASIC\n");
                return;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
index c3024b1..12367a9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
@@ -122,6 +122,7 @@ int amdgpu_amdkfd_submit_ib(struct kgd_dev *kgd, enum 
kgd_engine_type engine,
 
 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_7_get_functions(void);
 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_8_0_get_functions(void);
+struct kfd2kgd_calls *amdgpu_amdkfd_gfx_9_0_get_functions(void);
 
 bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid);
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c
new file mode 100644
index 0000000..8f37991
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c
@@ -0,0 +1,1043 @@
+/*
+ * Copyright 2014-2018 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.
+ */
+
+#define pr_fmt(fmt) "kfd2kgd: " fmt
+
+#include <linux/module.h>
+#include <linux/fdtable.h>
+#include <linux/uaccess.h>
+#include <linux/firmware.h>
+#include <drm/drmP.h>
+#include "amdgpu.h"
+#include "amdgpu_amdkfd.h"
+#include "amdgpu_ucode.h"
+#include "soc15_hw_ip.h"
+#include "gc/gc_9_0_offset.h"
+#include "gc/gc_9_0_sh_mask.h"
+#include "vega10_enum.h"
+#include "sdma0/sdma0_4_0_offset.h"
+#include "sdma0/sdma0_4_0_sh_mask.h"
+#include "sdma1/sdma1_4_0_offset.h"
+#include "sdma1/sdma1_4_0_sh_mask.h"
+#include "athub/athub_1_0_offset.h"
+#include "athub/athub_1_0_sh_mask.h"
+#include "oss/osssys_4_0_offset.h"
+#include "oss/osssys_4_0_sh_mask.h"
+#include "soc15_common.h"
+#include "v9_structs.h"
+#include "soc15.h"
+#include "soc15d.h"
+
+/* HACK: MMHUB and GC both have VM-related register with the same
+ * names but different offsets. Define the MMHUB register we need here
+ * with a prefix. A proper solution would be to move the functions
+ * programming these registers into gfx_v9_0.c and mmhub_v1_0.c
+ * respectively.
+ */
+#define mmMMHUB_VM_INVALIDATE_ENG16_REQ                                0x06f3
+#define mmMMHUB_VM_INVALIDATE_ENG16_REQ_BASE_IDX               0
+
+#define mmMMHUB_VM_INVALIDATE_ENG16_ACK                                0x0705
+#define mmMMHUB_VM_INVALIDATE_ENG16_ACK_BASE_IDX               0
+
+#define mmMMHUB_VM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32          0x072b
+#define mmMMHUB_VM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32_BASE_IDX 0
+#define mmMMHUB_VM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32          0x072c
+#define mmMMHUB_VM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32_BASE_IDX 0
+
+#define mmMMHUB_VM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32         0x074b
+#define mmMMHUB_VM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32_BASE_IDX        0
+#define mmMMHUB_VM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32         0x074c
+#define mmMMHUB_VM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32_BASE_IDX        0
+
+#define mmMMHUB_VM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32           0x076b
+#define mmMMHUB_VM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32_BASE_IDX  0
+#define mmMMHUB_VM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32           0x076c
+#define mmMMHUB_VM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32_BASE_IDX  0
+
+#define mmMMHUB_VM_INVALIDATE_ENG16_ADDR_RANGE_LO32            0x0727
+#define mmMMHUB_VM_INVALIDATE_ENG16_ADDR_RANGE_LO32_BASE_IDX   0
+#define mmMMHUB_VM_INVALIDATE_ENG16_ADDR_RANGE_HI32            0x0728
+#define mmMMHUB_VM_INVALIDATE_ENG16_ADDR_RANGE_HI32_BASE_IDX   0
+
+#define V9_PIPE_PER_MEC                (4)
+#define V9_QUEUES_PER_PIPE_MEC (8)
+
+enum hqd_dequeue_request_type {
+       NO_ACTION = 0,
+       DRAIN_PIPE,
+       RESET_WAVES
+};
+
+/*
+ * Register access functions
+ */
+
+static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
+               uint32_t sh_mem_config,
+               uint32_t sh_mem_ape1_base, uint32_t sh_mem_ape1_limit,
+               uint32_t sh_mem_bases);
+static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
+               unsigned int vmid);
+static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id);
+static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
+                       uint32_t queue_id, uint32_t __user *wptr,
+                       uint32_t wptr_shift, uint32_t wptr_mask,
+                       struct mm_struct *mm);
+static int kgd_hqd_dump(struct kgd_dev *kgd,
+                       uint32_t pipe_id, uint32_t queue_id,
+                       uint32_t (**dump)[2], uint32_t *n_regs);
+static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd,
+                            uint32_t __user *wptr, struct mm_struct *mm);
+static int kgd_hqd_sdma_dump(struct kgd_dev *kgd,
+                            uint32_t engine_id, uint32_t queue_id,
+                            uint32_t (**dump)[2], uint32_t *n_regs);
+static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
+               uint32_t pipe_id, uint32_t queue_id);
+static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd);
+static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
+                               enum kfd_preempt_type reset_type,
+                               unsigned int utimeout, uint32_t pipe_id,
+                               uint32_t queue_id);
+static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
+                               unsigned int utimeout);
+static int kgd_address_watch_disable(struct kgd_dev *kgd);
+static int kgd_address_watch_execute(struct kgd_dev *kgd,
+                                       unsigned int watch_point_id,
+                                       uint32_t cntl_val,
+                                       uint32_t addr_hi,
+                                       uint32_t addr_lo);
+static int kgd_wave_control_execute(struct kgd_dev *kgd,
+                                       uint32_t gfx_index_val,
+                                       uint32_t sq_cmd);
+static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd,
+                                       unsigned int watch_point_id,
+                                       unsigned int reg_offset);
+
+static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd,
+               uint8_t vmid);
+static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd,
+               uint8_t vmid);
+static void set_vm_context_page_table_base(struct kgd_dev *kgd, uint32_t vmid,
+               uint32_t page_table_base);
+static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type);
+static void set_scratch_backing_va(struct kgd_dev *kgd,
+                                       uint64_t va, uint32_t vmid);
+static int invalidate_tlbs(struct kgd_dev *kgd, uint16_t pasid);
+static int invalidate_tlbs_vmid(struct kgd_dev *kgd, uint16_t vmid);
+
+/* Because of REG_GET_FIELD() being used, we put this function in the
+ * asic specific file.
+ */
+static int amdgpu_amdkfd_get_tile_config(struct kgd_dev *kgd,
+               struct tile_config *config)
+{
+       struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
+
+       config->gb_addr_config = adev->gfx.config.gb_addr_config;
+
+       config->tile_config_ptr = adev->gfx.config.tile_mode_array;
+       config->num_tile_configs =
+                       ARRAY_SIZE(adev->gfx.config.tile_mode_array);
+       config->macro_tile_config_ptr =
+                       adev->gfx.config.macrotile_mode_array;
+       config->num_macro_tile_configs =
+                       ARRAY_SIZE(adev->gfx.config.macrotile_mode_array);
+
+       return 0;
+}
+
+static const struct kfd2kgd_calls kfd2kgd = {
+       .init_gtt_mem_allocation = alloc_gtt_mem,
+       .free_gtt_mem = free_gtt_mem,
+       .get_local_mem_info = get_local_mem_info,
+       .get_gpu_clock_counter = get_gpu_clock_counter,
+       .get_max_engine_clock_in_mhz = get_max_engine_clock_in_mhz,
+       .alloc_pasid = amdgpu_pasid_alloc,
+       .free_pasid = amdgpu_pasid_free,
+       .program_sh_mem_settings = kgd_program_sh_mem_settings,
+       .set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping,
+       .init_interrupts = kgd_init_interrupts,
+       .hqd_load = kgd_hqd_load,
+       .hqd_sdma_load = kgd_hqd_sdma_load,
+       .hqd_dump = kgd_hqd_dump,
+       .hqd_sdma_dump = kgd_hqd_sdma_dump,
+       .hqd_is_occupied = kgd_hqd_is_occupied,
+       .hqd_sdma_is_occupied = kgd_hqd_sdma_is_occupied,
+       .hqd_destroy = kgd_hqd_destroy,
+       .hqd_sdma_destroy = kgd_hqd_sdma_destroy,
+       .address_watch_disable = kgd_address_watch_disable,
+       .address_watch_execute = kgd_address_watch_execute,
+       .wave_control_execute = kgd_wave_control_execute,
+       .address_watch_get_offset = kgd_address_watch_get_offset,
+       .get_atc_vmid_pasid_mapping_pasid =
+                       get_atc_vmid_pasid_mapping_pasid,
+       .get_atc_vmid_pasid_mapping_valid =
+                       get_atc_vmid_pasid_mapping_valid,
+       .get_fw_version = get_fw_version,
+       .set_scratch_backing_va = set_scratch_backing_va,
+       .get_tile_config = amdgpu_amdkfd_get_tile_config,
+       .get_cu_info = get_cu_info,
+       .get_vram_usage = amdgpu_amdkfd_get_vram_usage,
+       .create_process_vm = amdgpu_amdkfd_gpuvm_create_process_vm,
+       .acquire_process_vm = amdgpu_amdkfd_gpuvm_acquire_process_vm,
+       .destroy_process_vm = amdgpu_amdkfd_gpuvm_destroy_process_vm,
+       .get_process_page_dir = amdgpu_amdkfd_gpuvm_get_process_page_dir,
+       .set_vm_context_page_table_base = set_vm_context_page_table_base,
+       .alloc_memory_of_gpu = amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu,
+       .free_memory_of_gpu = amdgpu_amdkfd_gpuvm_free_memory_of_gpu,
+       .map_memory_to_gpu = amdgpu_amdkfd_gpuvm_map_memory_to_gpu,
+       .unmap_memory_to_gpu = amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu,
+       .sync_memory = amdgpu_amdkfd_gpuvm_sync_memory,
+       .map_gtt_bo_to_kernel = amdgpu_amdkfd_gpuvm_map_gtt_bo_to_kernel,
+       .restore_process_bos = amdgpu_amdkfd_gpuvm_restore_process_bos,
+       .invalidate_tlbs = invalidate_tlbs,
+       .invalidate_tlbs_vmid = invalidate_tlbs_vmid,
+       .submit_ib = amdgpu_amdkfd_submit_ib,
+};
+
+struct kfd2kgd_calls *amdgpu_amdkfd_gfx_9_0_get_functions(void)
+{
+       return (struct kfd2kgd_calls *)&kfd2kgd;
+}
+
+static inline struct amdgpu_device *get_amdgpu_device(struct kgd_dev *kgd)
+{
+       return (struct amdgpu_device *)kgd;
+}
+
+static void lock_srbm(struct kgd_dev *kgd, uint32_t mec, uint32_t pipe,
+                       uint32_t queue, uint32_t vmid)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+
+       mutex_lock(&adev->srbm_mutex);
+       soc15_grbm_select(adev, mec, pipe, queue, vmid);
+}
+
+static void unlock_srbm(struct kgd_dev *kgd)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+
+       soc15_grbm_select(adev, 0, 0, 0, 0);
+       mutex_unlock(&adev->srbm_mutex);
+}
+
+static void acquire_queue(struct kgd_dev *kgd, uint32_t pipe_id,
+                               uint32_t queue_id)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+
+       uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
+       uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
+
+       lock_srbm(kgd, mec, pipe, queue_id, 0);
+}
+
+static uint32_t get_queue_mask(struct amdgpu_device *adev,
+                              uint32_t pipe_id, uint32_t queue_id)
+{
+       unsigned int bit = (pipe_id * adev->gfx.mec.num_queue_per_pipe +
+                           queue_id) & 31;
+
+       return ((uint32_t)1) << bit;
+}
+
+static void release_queue(struct kgd_dev *kgd)
+{
+       unlock_srbm(kgd);
+}
+
+static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
+                                       uint32_t sh_mem_config,
+                                       uint32_t sh_mem_ape1_base,
+                                       uint32_t sh_mem_ape1_limit,
+                                       uint32_t sh_mem_bases)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+
+       lock_srbm(kgd, 0, 0, 0, vmid);
+
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmSH_MEM_CONFIG), sh_mem_config);
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmSH_MEM_BASES), sh_mem_bases);
+       /* APE1 no longer exists on GFX9 */
+
+       unlock_srbm(kgd);
+}
+
+static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
+                                       unsigned int vmid)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+
+       /*
+        * We have to assume that there is no outstanding mapping.
+        * The ATC_VMID_PASID_MAPPING_UPDATE_STATUS bit could be 0 because
+        * a mapping is in progress or because a mapping finished
+        * and the SW cleared it.
+        * So the protocol is to always wait & clear.
+        */
+       uint32_t pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid |
+                       ATC_VMID0_PASID_MAPPING__VALID_MASK;
+
+       /*
+        * need to do this twice, once for gfx and once for mmhub
+        * for ATC add 16 to VMID for mmhub, for IH different registers.
+        * ATC_VMID0..15 registers are separate from ATC_VMID16..31.
+        */
+
+       WREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID0_PASID_MAPPING) + vmid,
+              pasid_mapping);
+
+       while (!(RREG32(SOC15_REG_OFFSET(
+                               ATHUB, 0,
+                               mmATC_VMID_PASID_MAPPING_UPDATE_STATUS)) &
+                (1U << vmid)))
+               cpu_relax();
+
+       WREG32(SOC15_REG_OFFSET(ATHUB, 0,
+                               mmATC_VMID_PASID_MAPPING_UPDATE_STATUS),
+              1U << vmid);
+
+       /* Mapping vmid to pasid also for IH block */
+       WREG32(SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid,
+              pasid_mapping);
+
+       WREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID16_PASID_MAPPING) + vmid,
+              pasid_mapping);
+
+       while (!(RREG32(SOC15_REG_OFFSET(
+                               ATHUB, 0,
+                               mmATC_VMID_PASID_MAPPING_UPDATE_STATUS)) &
+                (1U << (vmid + 16))))
+               cpu_relax();
+
+       WREG32(SOC15_REG_OFFSET(ATHUB, 0,
+                               mmATC_VMID_PASID_MAPPING_UPDATE_STATUS),
+              1U << (vmid + 16));
+
+       /* Mapping vmid to pasid also for IH block */
+       WREG32(SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT_MM) + vmid,
+              pasid_mapping);
+       return 0;
+}
+
+/* TODO - RING0 form of field is obsolete, seems to date back to SI
+ * but still works
+ */
+
+static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+       uint32_t mec;
+       uint32_t pipe;
+
+       mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
+       pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
+
+       lock_srbm(kgd, mec, pipe, 0, 0);
+
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmCPC_INT_CNTL),
+               CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK |
+               CP_INT_CNTL_RING0__OPCODE_ERROR_INT_ENABLE_MASK);
+
+       unlock_srbm(kgd);
+
+       return 0;
+}
+
+static uint32_t get_sdma_base_addr(struct amdgpu_device *adev,
+                               unsigned int engine_id,
+                               unsigned int queue_id)
+{
+       uint32_t base[2] = {
+               SOC15_REG_OFFSET(SDMA0, 0,
+                                mmSDMA0_RLC0_RB_CNTL) - mmSDMA0_RLC0_RB_CNTL,
+               SOC15_REG_OFFSET(SDMA1, 0,
+                                mmSDMA1_RLC0_RB_CNTL) - mmSDMA1_RLC0_RB_CNTL
+       };
+       uint32_t retval;
+
+       retval = base[engine_id] + queue_id * (mmSDMA0_RLC1_RB_CNTL -
+                                              mmSDMA0_RLC0_RB_CNTL);
+
+       pr_debug("sdma base address: 0x%x\n", retval);
+
+       return retval;
+}
+
+static inline struct v9_mqd *get_mqd(void *mqd)
+{
+       return (struct v9_mqd *)mqd;
+}
+
+static inline struct v9_sdma_mqd *get_sdma_mqd(void *mqd)
+{
+       return (struct v9_sdma_mqd *)mqd;
+}
+
+static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
+                       uint32_t queue_id, uint32_t __user *wptr,
+                       uint32_t wptr_shift, uint32_t wptr_mask,
+                       struct mm_struct *mm)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+       struct v9_mqd *m;
+       uint32_t *mqd_hqd;
+       uint32_t reg, hqd_base, data;
+
+       m = get_mqd(mqd);
+
+       acquire_queue(kgd, pipe_id, queue_id);
+
+       /* HIQ is set during driver init period with vmid set to 0*/
+       if (m->cp_hqd_vmid == 0) {
+               uint32_t value, mec, pipe;
+
+               mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
+               pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
+
+               pr_debug("kfd: set HIQ, mec:%d, pipe:%d, queue:%d.\n",
+                       mec, pipe, queue_id);
+               value = RREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_CP_SCHEDULERS));
+               value = REG_SET_FIELD(value, RLC_CP_SCHEDULERS, scheduler1,
+                       ((mec << 5) | (pipe << 3) | queue_id | 0x80));
+               WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_CP_SCHEDULERS), value);
+       }
+
+       /* HQD registers extend from CP_MQD_BASE_ADDR to CP_HQD_EOP_WPTR_MEM. */
+       mqd_hqd = &m->cp_mqd_base_addr_lo;
+       hqd_base = SOC15_REG_OFFSET(GC, 0, mmCP_MQD_BASE_ADDR);
+
+       for (reg = hqd_base;
+            reg <= SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_HI); reg++)
+               WREG32(reg, mqd_hqd[reg - hqd_base]);
+
+
+       /* Activate doorbell logic before triggering WPTR poll. */
+       data = REG_SET_FIELD(m->cp_hqd_pq_doorbell_control,
+                            CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1);
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_DOORBELL_CONTROL), data);
+
+       if (wptr) {
+               /* Don't read wptr with get_user because the user
+                * context may not be accessible (if this function
+                * runs in a work queue). Instead trigger a one-shot
+                * polling read from memory in the CP. This assumes
+                * that wptr is GPU-accessible in the queue's VMID via
+                * ATC or SVM. WPTR==RPTR before starting the poll so
+                * the CP starts fetching new commands from the right
+                * place.
+                *
+                * Guessing a 64-bit WPTR from a 32-bit RPTR is a bit
+                * tricky. Assume that the queue didn't overflow. The
+                * number of valid bits in the 32-bit RPTR depends on
+                * the queue size. The remaining bits are taken from
+                * the saved 64-bit WPTR. If the WPTR wrapped, add the
+                * queue size.
+                */
+               uint32_t queue_size =
+                       2 << REG_GET_FIELD(m->cp_hqd_pq_control,
+                                          CP_HQD_PQ_CONTROL, QUEUE_SIZE);
+               uint64_t guessed_wptr = m->cp_hqd_pq_rptr & (queue_size - 1);
+
+               if ((m->cp_hqd_pq_wptr_lo & (queue_size - 1)) < guessed_wptr)
+                       guessed_wptr += queue_size;
+               guessed_wptr += m->cp_hqd_pq_wptr_lo & ~(queue_size - 1);
+               guessed_wptr += (uint64_t)m->cp_hqd_pq_wptr_hi << 32;
+
+               WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_LO),
+                      lower_32_bits(guessed_wptr));
+               WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_HI),
+                      upper_32_bits(guessed_wptr));
+               WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_POLL_ADDR),
+                      lower_32_bits((uint64_t)wptr));
+               WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_POLL_ADDR_HI),
+                      upper_32_bits((uint64_t)wptr));
+               WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_PQ_WPTR_POLL_CNTL1),
+                      get_queue_mask(adev, pipe_id, queue_id));
+       }
+
+       /* Start the EOP fetcher */
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_EOP_RPTR),
+              REG_SET_FIELD(m->cp_hqd_eop_rptr,
+                            CP_HQD_EOP_RPTR, INIT_FETCHER, 1));
+
+       data = REG_SET_FIELD(m->cp_hqd_active, CP_HQD_ACTIVE, ACTIVE, 1);
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_ACTIVE), data);
+
+       release_queue(kgd);
+
+       return 0;
+}
+
+static int kgd_hqd_dump(struct kgd_dev *kgd,
+                       uint32_t pipe_id, uint32_t queue_id,
+                       uint32_t (**dump)[2], uint32_t *n_regs)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+       uint32_t i = 0, reg;
+#define HQD_N_REGS 56
+#define DUMP_REG(addr) do {                            \
+               if (WARN_ON_ONCE(i >= HQD_N_REGS))      \
+                       break;                          \
+               (*dump)[i][0] = (addr) << 2;            \
+               (*dump)[i++][1] = RREG32(addr);         \
+       } while (0)
+
+       *dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL);
+       if (*dump == NULL)
+               return -ENOMEM;
+
+       acquire_queue(kgd, pipe_id, queue_id);
+
+       for (reg = SOC15_REG_OFFSET(GC, 0, mmCP_MQD_BASE_ADDR);
+            reg <= SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_HI); reg++)
+               DUMP_REG(reg);
+
+       release_queue(kgd);
+
+       WARN_ON_ONCE(i != HQD_N_REGS);
+       *n_regs = i;
+
+       return 0;
+}
+
+static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd,
+                            uint32_t __user *wptr, struct mm_struct *mm)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+       struct v9_sdma_mqd *m;
+       uint32_t sdma_base_addr, sdmax_gfx_context_cntl;
+       unsigned long end_jiffies;
+       uint32_t data;
+       uint64_t data64;
+       uint64_t __user *wptr64 = (uint64_t __user *)wptr;
+
+       m = get_sdma_mqd(mqd);
+       sdma_base_addr = get_sdma_base_addr(adev, m->sdma_engine_id,
+                                           m->sdma_queue_id);
+       sdmax_gfx_context_cntl = m->sdma_engine_id ?
+               SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_GFX_CONTEXT_CNTL) :
+               SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_GFX_CONTEXT_CNTL);
+
+       WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL,
+               m->sdmax_rlcx_rb_cntl & (~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK));
+
+       end_jiffies = msecs_to_jiffies(2000) + jiffies;
+       while (true) {
+               data = RREG32(sdma_base_addr + mmSDMA0_RLC0_CONTEXT_STATUS);
+               if (data & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
+                       break;
+               if (time_after(jiffies, end_jiffies))
+                       return -ETIME;
+               usleep_range(500, 1000);
+       }
+       data = RREG32(sdmax_gfx_context_cntl);
+       data = REG_SET_FIELD(data, SDMA0_GFX_CONTEXT_CNTL,
+                            RESUME_CTX, 0);
+       WREG32(sdmax_gfx_context_cntl, data);
+
+       WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL_OFFSET,
+              m->sdmax_rlcx_doorbell_offset);
+
+       data = REG_SET_FIELD(m->sdmax_rlcx_doorbell, SDMA0_RLC0_DOORBELL,
+                            ENABLE, 1);
+       WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, data);
+       WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR, m->sdmax_rlcx_rb_rptr);
+       WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_HI,
+                               m->sdmax_rlcx_rb_rptr_hi);
+
+       WREG32(sdma_base_addr + mmSDMA0_RLC0_MINOR_PTR_UPDATE, 1);
+       if (read_user_wptr(mm, wptr64, data64)) {
+               WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR,
+                      lower_32_bits(data64));
+               WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR_HI,
+                      upper_32_bits(data64));
+       } else {
+               WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR,
+                      m->sdmax_rlcx_rb_rptr);
+               WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR_HI,
+                      m->sdmax_rlcx_rb_rptr_hi);
+       }
+       WREG32(sdma_base_addr + mmSDMA0_RLC0_MINOR_PTR_UPDATE, 0);
+
+       WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE, m->sdmax_rlcx_rb_base);
+       WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE_HI,
+                       m->sdmax_rlcx_rb_base_hi);
+       WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_LO,
+                       m->sdmax_rlcx_rb_rptr_addr_lo);
+       WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_HI,
+                       m->sdmax_rlcx_rb_rptr_addr_hi);
+
+       data = REG_SET_FIELD(m->sdmax_rlcx_rb_cntl, SDMA0_RLC0_RB_CNTL,
+                            RB_ENABLE, 1);
+       WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, data);
+
+       return 0;
+}
+
+static int kgd_hqd_sdma_dump(struct kgd_dev *kgd,
+                            uint32_t engine_id, uint32_t queue_id,
+                            uint32_t (**dump)[2], uint32_t *n_regs)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+       uint32_t sdma_base_addr = get_sdma_base_addr(adev, engine_id, queue_id);
+       uint32_t i = 0, reg;
+#undef HQD_N_REGS
+#define HQD_N_REGS (19+6+7+10)
+
+       *dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL);
+       if (*dump == NULL)
+               return -ENOMEM;
+
+       for (reg = mmSDMA0_RLC0_RB_CNTL; reg <= mmSDMA0_RLC0_DOORBELL; reg++)
+               DUMP_REG(sdma_base_addr + reg);
+       for (reg = mmSDMA0_RLC0_STATUS; reg <= mmSDMA0_RLC0_CSA_ADDR_HI; reg++)
+               DUMP_REG(sdma_base_addr + reg);
+       for (reg = mmSDMA0_RLC0_IB_SUB_REMAIN;
+            reg <= mmSDMA0_RLC0_MINOR_PTR_UPDATE; reg++)
+               DUMP_REG(sdma_base_addr + reg);
+       for (reg = mmSDMA0_RLC0_MIDCMD_DATA0;
+            reg <= mmSDMA0_RLC0_MIDCMD_CNTL; reg++)
+               DUMP_REG(sdma_base_addr + reg);
+
+       WARN_ON_ONCE(i != HQD_N_REGS);
+       *n_regs = i;
+
+       return 0;
+}
+
+static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
+                               uint32_t pipe_id, uint32_t queue_id)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+       uint32_t act;
+       bool retval = false;
+       uint32_t low, high;
+
+       acquire_queue(kgd, pipe_id, queue_id);
+       act = RREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_ACTIVE));
+       if (act) {
+               low = lower_32_bits(queue_address >> 8);
+               high = upper_32_bits(queue_address >> 8);
+
+               if (low == RREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_BASE)) &&
+                  high == RREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_BASE_HI)))
+                       retval = true;
+       }
+       release_queue(kgd);
+       return retval;
+}
+
+static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+       struct v9_sdma_mqd *m;
+       uint32_t sdma_base_addr;
+       uint32_t sdma_rlc_rb_cntl;
+
+       m = get_sdma_mqd(mqd);
+       sdma_base_addr = get_sdma_base_addr(adev, m->sdma_engine_id,
+                                           m->sdma_queue_id);
+
+       sdma_rlc_rb_cntl = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL);
+
+       if (sdma_rlc_rb_cntl & SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)
+               return true;
+
+       return false;
+}
+
+static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
+                               enum kfd_preempt_type reset_type,
+                               unsigned int utimeout, uint32_t pipe_id,
+                               uint32_t queue_id)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+       enum hqd_dequeue_request_type type;
+       unsigned long end_jiffies;
+       uint32_t temp;
+       struct v9_mqd *m = get_mqd(mqd);
+
+       acquire_queue(kgd, pipe_id, queue_id);
+
+       if (m->cp_hqd_vmid == 0)
+               WREG32_FIELD15(GC, 0, RLC_CP_SCHEDULERS, scheduler1, 0);
+
+       switch (reset_type) {
+       case KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN:
+               type = DRAIN_PIPE;
+               break;
+       case KFD_PREEMPT_TYPE_WAVEFRONT_RESET:
+               type = RESET_WAVES;
+               break;
+       default:
+               type = DRAIN_PIPE;
+               break;
+       }
+
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_DEQUEUE_REQUEST), type);
+
+       end_jiffies = (utimeout * HZ / 1000) + jiffies;
+       while (true) {
+               temp = RREG32(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_ACTIVE));
+               if (!(temp & CP_HQD_ACTIVE__ACTIVE_MASK))
+                       break;
+               if (time_after(jiffies, end_jiffies)) {
+                       pr_err("cp queue preemption time out.\n");
+                       release_queue(kgd);
+                       return -ETIME;
+               }
+               usleep_range(500, 1000);
+       }
+
+       release_queue(kgd);
+       return 0;
+}
+
+static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
+                               unsigned int utimeout)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+       struct v9_sdma_mqd *m;
+       uint32_t sdma_base_addr;
+       uint32_t temp;
+       unsigned long end_jiffies = (utimeout * HZ / 1000) + jiffies;
+
+       m = get_sdma_mqd(mqd);
+       sdma_base_addr = get_sdma_base_addr(adev, m->sdma_engine_id,
+                                           m->sdma_queue_id);
+
+       temp = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL);
+       temp = temp & ~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK;
+       WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, temp);
+
+       while (true) {
+               temp = RREG32(sdma_base_addr + mmSDMA0_RLC0_CONTEXT_STATUS);
+               if (temp & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
+                       break;
+               if (time_after(jiffies, end_jiffies))
+                       return -ETIME;
+               usleep_range(500, 1000);
+       }
+
+       WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, 0);
+       WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL,
+               RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL) |
+               SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK);
+
+       m->sdmax_rlcx_rb_rptr = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR);
+       m->sdmax_rlcx_rb_rptr_hi =
+               RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_HI);
+
+       return 0;
+}
+
+static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd,
+                                                       uint8_t vmid)
+{
+       uint32_t reg;
+       struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
+
+       reg = RREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID0_PASID_MAPPING)
+                    + vmid);
+       return reg & ATC_VMID0_PASID_MAPPING__VALID_MASK;
+}
+
+static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd,
+                                                               uint8_t vmid)
+{
+       uint32_t reg;
+       struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
+
+       reg = RREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID0_PASID_MAPPING)
+                    + vmid);
+       return reg & ATC_VMID0_PASID_MAPPING__PASID_MASK;
+}
+
+static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid)
+{
+       struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
+       uint32_t req = (1 << vmid) |
+               (0 << VM_INVALIDATE_ENG16_REQ__FLUSH_TYPE__SHIFT) | /* legacy */
+               VM_INVALIDATE_ENG16_REQ__INVALIDATE_L2_PTES_MASK |
+               VM_INVALIDATE_ENG16_REQ__INVALIDATE_L2_PDE0_MASK |
+               VM_INVALIDATE_ENG16_REQ__INVALIDATE_L2_PDE1_MASK |
+               VM_INVALIDATE_ENG16_REQ__INVALIDATE_L2_PDE2_MASK |
+               VM_INVALIDATE_ENG16_REQ__INVALIDATE_L1_PTES_MASK;
+
+       mutex_lock(&adev->srbm_mutex);
+
+       /* Use legacy mode tlb invalidation.
+        *
+        * Currently on Raven the code below is broken for anything but
+        * legacy mode due to a MMHUB power gating problem. A workaround
+        * is for MMHUB to wait until the condition PER_VMID_INVALIDATE_REQ
+        * == PER_VMID_INVALIDATE_ACK instead of simply waiting for the ack
+        * bit.
+        *
+        * TODO 1: agree on the right set of invalidation registers for
+        * KFD use. Use the last one for now. Invalidate both GC and
+        * MMHUB.
+        *
+        * TODO 2: support range-based invalidation, requires kfg2kgd
+        * interface change
+        */
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG16_ADDR_RANGE_LO32),
+                               0xffffffff);
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG16_ADDR_RANGE_HI32),
+                               0x0000001f);
+
+       WREG32(SOC15_REG_OFFSET(MMHUB, 0,
+                               mmMMHUB_VM_INVALIDATE_ENG16_ADDR_RANGE_LO32),
+                               0xffffffff);
+       WREG32(SOC15_REG_OFFSET(MMHUB, 0,
+                               mmMMHUB_VM_INVALIDATE_ENG16_ADDR_RANGE_HI32),
+                               0x0000001f);
+
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG16_REQ), req);
+
+       WREG32(SOC15_REG_OFFSET(MMHUB, 0, mmMMHUB_VM_INVALIDATE_ENG16_REQ),
+                               req);
+
+       while (!(RREG32(SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG16_ACK)) &
+                                       (1 << vmid)))
+               cpu_relax();
+
+       while (!(RREG32(SOC15_REG_OFFSET(MMHUB, 0,
+                                       mmMMHUB_VM_INVALIDATE_ENG16_ACK)) &
+                                       (1 << vmid)))
+               cpu_relax();
+
+       mutex_unlock(&adev->srbm_mutex);
+
+}
+
+static int invalidate_tlbs_with_kiq(struct amdgpu_device *adev, uint16_t pasid)
+{
+       signed long r;
+       uint32_t seq;
+       struct amdgpu_ring *ring = &adev->gfx.kiq.ring;
+
+       spin_lock(&adev->gfx.kiq.ring_lock);
+       amdgpu_ring_alloc(ring, 12); /* fence + invalidate_tlbs package*/
+       amdgpu_ring_write(ring, PACKET3(PACKET3_INVALIDATE_TLBS, 0));
+       amdgpu_ring_write(ring,
+                       PACKET3_INVALIDATE_TLBS_DST_SEL(1) |
+                       PACKET3_INVALIDATE_TLBS_ALL_HUB(1) |
+                       PACKET3_INVALIDATE_TLBS_PASID(pasid) |
+                       PACKET3_INVALIDATE_TLBS_FLUSH_TYPE(0)); /* legacy */
+       amdgpu_fence_emit_polling(ring, &seq);
+       amdgpu_ring_commit(ring);
+       spin_unlock(&adev->gfx.kiq.ring_lock);
+
+       r = amdgpu_fence_wait_polling(ring, seq, adev->usec_timeout);
+       if (r < 1) {
+               DRM_ERROR("wait for kiq fence error: %ld.\n", r);
+               return -ETIME;
+       }
+
+       return 0;
+}
+
+static int invalidate_tlbs(struct kgd_dev *kgd, uint16_t pasid)
+{
+       struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
+       int vmid;
+       struct amdgpu_ring *ring = &adev->gfx.kiq.ring;
+
+       if (ring->ready)
+               return invalidate_tlbs_with_kiq(adev, pasid);
+
+       for (vmid = 0; vmid < 16; vmid++) {
+               if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid))
+                       continue;
+               if (get_atc_vmid_pasid_mapping_valid(kgd, vmid)) {
+                       if (get_atc_vmid_pasid_mapping_pasid(kgd, vmid)
+                               == pasid) {
+                               write_vmid_invalidate_request(kgd, vmid);
+                               break;
+                       }
+               }
+       }
+
+       return 0;
+}
+
+static int invalidate_tlbs_vmid(struct kgd_dev *kgd, uint16_t vmid)
+{
+       struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
+
+       if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) {
+               pr_err("non kfd vmid %d\n", vmid);
+               return 0;
+       }
+
+       write_vmid_invalidate_request(kgd, vmid);
+       return 0;
+}
+
+static int kgd_address_watch_disable(struct kgd_dev *kgd)
+{
+       return 0;
+}
+
+static int kgd_address_watch_execute(struct kgd_dev *kgd,
+                                       unsigned int watch_point_id,
+                                       uint32_t cntl_val,
+                                       uint32_t addr_hi,
+                                       uint32_t addr_lo)
+{
+       return 0;
+}
+
+static int kgd_wave_control_execute(struct kgd_dev *kgd,
+                                       uint32_t gfx_index_val,
+                                       uint32_t sq_cmd)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+       uint32_t data = 0;
+
+       mutex_lock(&adev->grbm_idx_mutex);
+
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmGRBM_GFX_INDEX), gfx_index_val);
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmSQ_CMD), sq_cmd);
+
+       data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
+               INSTANCE_BROADCAST_WRITES, 1);
+       data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
+               SH_BROADCAST_WRITES, 1);
+       data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
+               SE_BROADCAST_WRITES, 1);
+
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmGRBM_GFX_INDEX), data);
+       mutex_unlock(&adev->grbm_idx_mutex);
+
+       return 0;
+}
+
+static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd,
+                                       unsigned int watch_point_id,
+                                       unsigned int reg_offset)
+{
+       return 0;
+}
+
+static void set_scratch_backing_va(struct kgd_dev *kgd,
+                                       uint64_t va, uint32_t vmid)
+{
+       /* No longer needed on GFXv9. The scratch base address is
+        * passed to the shader by the CP. It's the user mode driver's
+        * responsibility.
+        */
+}
+
+/* FIXME: Does this need to be ASIC-specific code? */
+static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type)
+{
+       struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
+       const union amdgpu_firmware_header *hdr;
+
+       switch (type) {
+       case KGD_ENGINE_PFP:
+               hdr = (const union amdgpu_firmware_header 
*)adev->gfx.pfp_fw->data;
+               break;
+
+       case KGD_ENGINE_ME:
+               hdr = (const union amdgpu_firmware_header 
*)adev->gfx.me_fw->data;
+               break;
+
+       case KGD_ENGINE_CE:
+               hdr = (const union amdgpu_firmware_header 
*)adev->gfx.ce_fw->data;
+               break;
+
+       case KGD_ENGINE_MEC1:
+               hdr = (const union amdgpu_firmware_header 
*)adev->gfx.mec_fw->data;
+               break;
+
+       case KGD_ENGINE_MEC2:
+               hdr = (const union amdgpu_firmware_header 
*)adev->gfx.mec2_fw->data;
+               break;
+
+       case KGD_ENGINE_RLC:
+               hdr = (const union amdgpu_firmware_header 
*)adev->gfx.rlc_fw->data;
+               break;
+
+       case KGD_ENGINE_SDMA1:
+               hdr = (const union amdgpu_firmware_header 
*)adev->sdma.instance[0].fw->data;
+               break;
+
+       case KGD_ENGINE_SDMA2:
+               hdr = (const union amdgpu_firmware_header 
*)adev->sdma.instance[1].fw->data;
+               break;
+
+       default:
+               return 0;
+       }
+
+       if (hdr == NULL)
+               return 0;
+
+       /* Only 12 bit in use*/
+       return hdr->common.ucode_version;
+}
+
+static void set_vm_context_page_table_base(struct kgd_dev *kgd, uint32_t vmid,
+               uint32_t page_table_base)
+{
+       struct amdgpu_device *adev = get_amdgpu_device(kgd);
+       uint64_t base = (uint64_t)page_table_base << PAGE_SHIFT |
+               AMDGPU_PTE_VALID;
+
+       if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) {
+               pr_err("trying to set page table base for wrong VMID %u\n",
+                      vmid);
+               return;
+       }
+
+       /* TODO: take advantage of per-process address space size. For
+        * now, all processes share the same address space size, like
+        * on GFX8 and older.
+        */
+       WREG32(SOC15_REG_OFFSET(MMHUB, 0, 
mmMMHUB_VM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32) + (vmid*2), 0);
+       WREG32(SOC15_REG_OFFSET(MMHUB, 0, 
mmMMHUB_VM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32) + (vmid*2), 0);
+
+       WREG32(SOC15_REG_OFFSET(MMHUB, 0, 
mmMMHUB_VM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32) + (vmid*2),
+                       lower_32_bits(adev->vm_manager.max_pfn - 1));
+       WREG32(SOC15_REG_OFFSET(MMHUB, 0, 
mmMMHUB_VM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32) + (vmid*2),
+                       upper_32_bits(adev->vm_manager.max_pfn - 1));
+
+       WREG32(SOC15_REG_OFFSET(MMHUB, 0, 
mmMMHUB_VM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32) + (vmid*2), lower_32_bits(base));
+       WREG32(SOC15_REG_OFFSET(MMHUB, 0, 
mmMMHUB_VM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32) + (vmid*2), upper_32_bits(base));
+
+       WREG32(SOC15_REG_OFFSET(GC, 0, 
mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32) + (vmid*2), 0);
+       WREG32(SOC15_REG_OFFSET(GC, 0, 
mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32) + (vmid*2), 0);
+
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32) 
+ (vmid*2),
+                       lower_32_bits(adev->vm_manager.max_pfn - 1));
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32) 
+ (vmid*2),
+                       upper_32_bits(adev->vm_manager.max_pfn - 1));
+
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32) 
+ (vmid*2), lower_32_bits(base));
+       WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32) 
+ (vmid*2), upper_32_bits(base));
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 1ae3de1..68aad8b 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -4627,6 +4627,7 @@ static int gfx_v9_0_get_cu_info(struct amdgpu_device 
*adev,
 
        cu_info->number = active_cu_number;
        cu_info->ao_cu_mask = ao_cu_mask;
+       cu_info->simd_per_cu = NUM_SIMD_PER_CU;
 
        return 0;
 }
-- 
2.7.4

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