drm/amdkfd: Change MQD manager to be H/W specific

The MQDs for CI and VI are different. Therefore, the MQD manager module need to
be H/W specific.

This patch splits the current MQD manager into three files:

- kfd_mqd_manager.c, which contains common functions and initializes the
  specific mqd manager module according to the H/W

- kfd_mqd_manager_cik.c, which contains Kaveri specific functions. This is
  basically the old kfd_mqd_manager.c

- kfd_mqd_manager_vi.c, which will contain VI specific functions. Currently it
  is not implemented except for returning NULL on initialization.
Signed-off-by: Ben Goz <ben.goz@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdkfd/Makefile

@@ -7,6 +7,7 @@ ccflags-y := -Iinclude/drm -Idrivers/gpu/drm/amd/include/
 amdkfd-y	:= kfd_module.o kfd_device.o kfd_chardev.o kfd_topology.o \
 		kfd_pasid.o kfd_doorbell.o kfd_flat_memory.o \
 		kfd_process.o kfd_queue.o kfd_mqd_manager.o \
+		kfd_mqd_manager_cik.o kfd_mqd_manager_vi.o \
 		kfd_kernel_queue.o kfd_packet_manager.o \
 		kfd_process_queue_manager.o kfd_device_queue_manager.o \
 		kfd_interrupt.o

drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c

@@ -21,439 +21,17 @@
  *
  */
 
-#include <linux/printk.h>
-#include <linux/slab.h>
 #include "kfd_priv.h"
-#include "kfd_mqd_manager.h"
-#include "cik_regs.h"
-#include "cik_structs.h"
-
-inline void busy_wait(unsigned long ms)
-{
-	while (time_before(jiffies, ms))
-		cpu_relax();
-}
-
-static inline struct cik_mqd *get_mqd(void *mqd)
-{
-	return (struct cik_mqd *)mqd;
-}
-
-static int init_mqd(struct mqd_manager *mm, void **mqd,
-		struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
-		struct queue_properties *q)
-{
-	uint64_t addr;
-	struct cik_mqd *m;
-	int retval;
-
-	BUG_ON(!mm || !q || !mqd);
-
-	pr_debug("kfd: In func %s\n", __func__);
-
-	retval = kfd_gtt_sa_allocate(mm->dev, sizeof(struct cik_mqd),
-					mqd_mem_obj);
-
-	if (retval != 0)
-		return -ENOMEM;
-
-	m = (struct cik_mqd *) (*mqd_mem_obj)->cpu_ptr;
-	addr = (*mqd_mem_obj)->gpu_addr;
-
-	memset(m, 0, ALIGN(sizeof(struct cik_mqd), 256));
-
-	m->header = 0xC0310800;
-	m->compute_pipelinestat_enable = 1;
-	m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF;
-	m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF;
-	m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF;
-	m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF;
-
-	/*
-	 * Make sure to use the last queue state saved on mqd when the cp
-	 * reassigns the queue, so when queue is switched on/off (e.g over
-	 * subscription or quantum timeout) the context will be consistent
-	 */
-	m->cp_hqd_persistent_state =
-				DEFAULT_CP_HQD_PERSISTENT_STATE | PRELOAD_REQ;
-
-	m->cp_mqd_control             = MQD_CONTROL_PRIV_STATE_EN;
-	m->cp_mqd_base_addr_lo        = lower_32_bits(addr);
-	m->cp_mqd_base_addr_hi        = upper_32_bits(addr);
-
-	m->cp_hqd_ib_control = DEFAULT_MIN_IB_AVAIL_SIZE | IB_ATC_EN;
-	/* Although WinKFD writes this, I suspect it should not be necessary */
-	m->cp_hqd_ib_control = IB_ATC_EN | DEFAULT_MIN_IB_AVAIL_SIZE;
-
-	m->cp_hqd_quantum = QUANTUM_EN | QUANTUM_SCALE_1MS |
-				QUANTUM_DURATION(10);
-
-	/*
-	 * Pipe Priority
-	 * Identifies the pipe relative priority when this queue is connected
-	 * to the pipeline. The pipe priority is against the GFX pipe and HP3D.
-	 * In KFD we are using a fixed pipe priority set to CS_MEDIUM.
-	 * 0 = CS_LOW (typically below GFX)
-	 * 1 = CS_MEDIUM (typically between HP3D and GFX
-	 * 2 = CS_HIGH (typically above HP3D)
-	 */
-	m->cp_hqd_pipe_priority = 1;
-	m->cp_hqd_queue_priority = 15;
-
-	*mqd = m;
-	if (gart_addr != NULL)
-		*gart_addr = addr;
-	retval = mm->update_mqd(mm, m, q);
-
-	return retval;
-}
-
-static int init_mqd_sdma(struct mqd_manager *mm, void **mqd,
-			struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
-			struct queue_properties *q)
-{
-	int retval;
-	struct cik_sdma_rlc_registers *m;
-
-	BUG_ON(!mm || !mqd || !mqd_mem_obj);
-
-	retval = kfd_gtt_sa_allocate(mm->dev,
-					sizeof(struct cik_sdma_rlc_registers),
-					mqd_mem_obj);
-
-	if (retval != 0)
-		return -ENOMEM;
-
-	m = (struct cik_sdma_rlc_registers *) (*mqd_mem_obj)->cpu_ptr;
-
-	memset(m, 0, sizeof(struct cik_sdma_rlc_registers));
-
-	*mqd = m;
-	if (gart_addr != NULL)
-		*gart_addr = (*mqd_mem_obj)->gpu_addr;
-
-	retval = mm->update_mqd(mm, m, q);
-
-	return retval;
-}
-
-static void uninit_mqd(struct mqd_manager *mm, void *mqd,
-			struct kfd_mem_obj *mqd_mem_obj)
-{
-	BUG_ON(!mm || !mqd);
-	kfd_gtt_sa_free(mm->dev, mqd_mem_obj);
-}
-
-static void uninit_mqd_sdma(struct mqd_manager *mm, void *mqd,
-				struct kfd_mem_obj *mqd_mem_obj)
-{
-	BUG_ON(!mm || !mqd);
-	kfd_gtt_sa_free(mm->dev, mqd_mem_obj);
-}
-
-static int load_mqd(struct mqd_manager *mm, void *mqd, uint32_t pipe_id,
-			uint32_t queue_id, uint32_t __user *wptr)
-{
-	return kfd2kgd->hqd_load(mm->dev->kgd, mqd, pipe_id, queue_id, wptr);
-}
-
-static int load_mqd_sdma(struct mqd_manager *mm, void *mqd,
-			uint32_t pipe_id, uint32_t queue_id,
-			uint32_t __user *wptr)
-{
-	return kfd2kgd->hqd_sdma_load(mm->dev->kgd, mqd);
-}
-
-static int update_mqd(struct mqd_manager *mm, void *mqd,
-			struct queue_properties *q)
-{
-	struct cik_mqd *m;
-
-	BUG_ON(!mm || !q || !mqd);
-
-	pr_debug("kfd: In func %s\n", __func__);
-
-	m = get_mqd(mqd);
-	m->cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE |
-				DEFAULT_MIN_AVAIL_SIZE | PQ_ATC_EN;
-
-	/*
-	 * Calculating queue size which is log base 2 of actual queue size -1
-	 * dwords and another -1 for ffs
-	 */
-	m->cp_hqd_pq_control |= ffs(q->queue_size / sizeof(unsigned int))
-								- 1 - 1;
-	m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
-	m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
-	m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
-	m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
-	m->cp_hqd_pq_doorbell_control = DOORBELL_EN |
-					DOORBELL_OFFSET(q->doorbell_off);
-
-	m->cp_hqd_vmid = q->vmid;
-
-	if (q->format == KFD_QUEUE_FORMAT_AQL) {
-		m->cp_hqd_iq_rptr = AQL_ENABLE;
-		m->cp_hqd_pq_control |= NO_UPDATE_RPTR;
-	}
-
-	m->cp_hqd_active = 0;
-	q->is_active = false;
-	if (q->queue_size > 0 &&
-			q->queue_address != 0 &&
-			q->queue_percent > 0) {
-		m->cp_hqd_active = 1;
-		q->is_active = true;
-	}
-
-	return 0;
-}
-
-static int update_mqd_sdma(struct mqd_manager *mm, void *mqd,
-				struct queue_properties *q)
-{
-	struct cik_sdma_rlc_registers *m;
-
-	BUG_ON(!mm || !mqd || !q);
-
-	m = get_sdma_mqd(mqd);
-	m->sdma_rlc_rb_cntl =
-		SDMA_RB_SIZE((ffs(q->queue_size / sizeof(unsigned int)))) |
-		SDMA_RB_VMID(q->vmid) |
-		SDMA_RPTR_WRITEBACK_ENABLE |
-		SDMA_RPTR_WRITEBACK_TIMER(6);
-
-	m->sdma_rlc_rb_base = lower_32_bits(q->queue_address >> 8);
-	m->sdma_rlc_rb_base_hi = upper_32_bits(q->queue_address >> 8);
-	m->sdma_rlc_rb_rptr_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
-	m->sdma_rlc_rb_rptr_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
-	m->sdma_rlc_doorbell = SDMA_OFFSET(q->doorbell_off) | SDMA_DB_ENABLE;
-	m->sdma_rlc_virtual_addr = q->sdma_vm_addr;
-
-	m->sdma_engine_id = q->sdma_engine_id;
-	m->sdma_queue_id = q->sdma_queue_id;
-
-	q->is_active = false;
-	if (q->queue_size > 0 &&
-			q->queue_address != 0 &&
-			q->queue_percent > 0) {
-		m->sdma_rlc_rb_cntl |= SDMA_RB_ENABLE;
-		q->is_active = true;
-	}
-
-	return 0;
-}
-
-static int destroy_mqd(struct mqd_manager *mm, void *mqd,
-			enum kfd_preempt_type type,
-			unsigned int timeout, uint32_t pipe_id,
-			uint32_t queue_id)
-{
-	return kfd2kgd->hqd_destroy(mm->dev->kgd, type, timeout,
-					pipe_id, queue_id);
-}
-
-/*
- * preempt type here is ignored because there is only one way
- * to preempt sdma queue
- */
-static int destroy_mqd_sdma(struct mqd_manager *mm, void *mqd,
-				enum kfd_preempt_type type,
-				unsigned int timeout, uint32_t pipe_id,
-				uint32_t queue_id)
-{
-	return kfd2kgd->hqd_sdma_destroy(mm->dev->kgd, mqd, timeout);
-}
-
-static bool is_occupied(struct mqd_manager *mm, void *mqd,
-			uint64_t queue_address,	uint32_t pipe_id,
-			uint32_t queue_id)
-{
-
-	return kfd2kgd->hqd_is_occupies(mm->dev->kgd, queue_address,
-					pipe_id, queue_id);
-
-}
-
-static bool is_occupied_sdma(struct mqd_manager *mm, void *mqd,
-			uint64_t queue_address,	uint32_t pipe_id,
-			uint32_t queue_id)
-{
-	return kfd2kgd->hqd_sdma_is_occupied(mm->dev->kgd, mqd);
-}
-
-/*
- * HIQ MQD Implementation, concrete implementation for HIQ MQD implementation.
- * The HIQ queue in Kaveri is using the same MQD structure as all the user mode
- * queues but with different initial values.
- */
-
-static int init_mqd_hiq(struct mqd_manager *mm, void **mqd,
-		struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
-		struct queue_properties *q)
-{
-	uint64_t addr;
-	struct cik_mqd *m;
-	int retval;
-
-	BUG_ON(!mm || !q || !mqd || !mqd_mem_obj);
-
-	pr_debug("kfd: In func %s\n", __func__);
-
-	retval = kfd_gtt_sa_allocate(mm->dev, sizeof(struct cik_mqd),
-					mqd_mem_obj);
-
-	if (retval != 0)
-		return -ENOMEM;
-
-	m = (struct cik_mqd *) (*mqd_mem_obj)->cpu_ptr;
-	addr = (*mqd_mem_obj)->gpu_addr;
-
-	memset(m, 0, ALIGN(sizeof(struct cik_mqd), 256));
-
-	m->header = 0xC0310800;
-	m->compute_pipelinestat_enable = 1;
-	m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF;
-	m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF;
-	m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF;
-	m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF;
-
-	m->cp_hqd_persistent_state = DEFAULT_CP_HQD_PERSISTENT_STATE |
-					PRELOAD_REQ;
-	m->cp_hqd_quantum = QUANTUM_EN | QUANTUM_SCALE_1MS |
-				QUANTUM_DURATION(10);
-
-	m->cp_mqd_control             = MQD_CONTROL_PRIV_STATE_EN;
-	m->cp_mqd_base_addr_lo        = lower_32_bits(addr);
-	m->cp_mqd_base_addr_hi        = upper_32_bits(addr);
-
-	m->cp_hqd_ib_control = DEFAULT_MIN_IB_AVAIL_SIZE;
-
-	/*
-	 * Pipe Priority
-	 * Identifies the pipe relative priority when this queue is connected
-	 * to the pipeline. The pipe priority is against the GFX pipe and HP3D.
-	 * In KFD we are using a fixed pipe priority set to CS_MEDIUM.
-	 * 0 = CS_LOW (typically below GFX)
-	 * 1 = CS_MEDIUM (typically between HP3D and GFX
-	 * 2 = CS_HIGH (typically above HP3D)
-	 */
-	m->cp_hqd_pipe_priority = 1;
-	m->cp_hqd_queue_priority = 15;
-
-	*mqd = m;
-	if (gart_addr)
-		*gart_addr = addr;
-	retval = mm->update_mqd(mm, m, q);
-
-	return retval;
-}
-
-static int update_mqd_hiq(struct mqd_manager *mm, void *mqd,
-				struct queue_properties *q)
-{
-	struct cik_mqd *m;
-
-	BUG_ON(!mm || !q || !mqd);
-
-	pr_debug("kfd: In func %s\n", __func__);
-
-	m = get_mqd(mqd);
-	m->cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE |
-				DEFAULT_MIN_AVAIL_SIZE |
-				PRIV_STATE |
-				KMD_QUEUE;
-
-	/*
-	 * Calculating queue size which is log base 2 of actual queue
-	 * size -1 dwords
-	 */
-	m->cp_hqd_pq_control |= ffs(q->queue_size / sizeof(unsigned int))
-								- 1 - 1;
-	m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
-	m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
-	m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
-	m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
-	m->cp_hqd_pq_doorbell_control = DOORBELL_EN |
-					DOORBELL_OFFSET(q->doorbell_off);
-
-	m->cp_hqd_vmid = q->vmid;
-
-	m->cp_hqd_active = 0;
-	q->is_active = false;
-	if (q->queue_size > 0 &&
-			q->queue_address != 0 &&
-			q->queue_percent > 0) {
-		m->cp_hqd_active = 1;
-		q->is_active = true;
-	}
-
-	return 0;
-}
-
-/*
- * SDMA MQD Implementation
- */
-
-struct cik_sdma_rlc_registers *get_sdma_mqd(void *mqd)
-{
-	struct cik_sdma_rlc_registers *m;
-
-	BUG_ON(!mqd);
-
-	m = (struct cik_sdma_rlc_registers *)mqd;
-
-	return m;
-}
 
 struct mqd_manager *mqd_manager_init(enum KFD_MQD_TYPE type,
 					struct kfd_dev *dev)
 {
-	struct mqd_manager *mqd;
-
-	BUG_ON(!dev);
-	BUG_ON(type >= KFD_MQD_TYPE_MAX);
-
-	pr_debug("kfd: In func %s\n", __func__);
-
-	mqd = kzalloc(sizeof(struct mqd_manager), GFP_KERNEL);
-	if (!mqd)
-		return NULL;
-
-	mqd->dev = dev;
-
-	switch (type) {
-	case KFD_MQD_TYPE_CP:
-	case KFD_MQD_TYPE_COMPUTE:
-		mqd->init_mqd = init_mqd;
-		mqd->uninit_mqd = uninit_mqd;
-		mqd->load_mqd = load_mqd;
-		mqd->update_mqd = update_mqd;
-		mqd->destroy_mqd = destroy_mqd;
-		mqd->is_occupied = is_occupied;
-		break;
-	case KFD_MQD_TYPE_HIQ:
-		mqd->init_mqd = init_mqd_hiq;
-		mqd->uninit_mqd = uninit_mqd;
-		mqd->load_mqd = load_mqd;
-		mqd->update_mqd = update_mqd_hiq;
-		mqd->destroy_mqd = destroy_mqd;
-		mqd->is_occupied = is_occupied;
-		break;
-	case KFD_MQD_TYPE_SDMA:
-		mqd->init_mqd = init_mqd_sdma;
-		mqd->uninit_mqd = uninit_mqd_sdma;
-		mqd->load_mqd = load_mqd_sdma;
-		mqd->update_mqd = update_mqd_sdma;
-		mqd->destroy_mqd = destroy_mqd_sdma;
-		mqd->is_occupied = is_occupied_sdma;
-		break;
-	default:
-		kfree(mqd);
-		return NULL;
+	switch (dev->device_info->asic_family) {
+	case CHIP_KAVERI:
+		return mqd_manager_init_cik(type, dev);
+	case CHIP_CARRIZO:
+		return mqd_manager_init_vi(type, dev);
 	}
 
-	return mqd;
+	return NULL;
 }
-
-/* SDMA queues should be implemented here when the cp will supports them */

drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c

+/*
+ * Copyright 2014 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/printk.h>
+#include <linux/slab.h>
+#include "kfd_priv.h"
+#include "kfd_mqd_manager.h"
+#include "cik_regs.h"
+#include "cik_structs.h"
+
+inline void busy_wait(unsigned long ms)
+{
+	while (time_before(jiffies, ms))
+		cpu_relax();
+}
+
+static inline struct cik_mqd *get_mqd(void *mqd)
+{
+	return (struct cik_mqd *)mqd;
+}
+
+static int init_mqd(struct mqd_manager *mm, void **mqd,
+		struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
+		struct queue_properties *q)
+{
+	uint64_t addr;
+	struct cik_mqd *m;
+	int retval;
+
+	BUG_ON(!mm || !q || !mqd);
+
+	pr_debug("kfd: In func %s\n", __func__);
+
+	retval = kfd_gtt_sa_allocate(mm->dev, sizeof(struct cik_mqd),
+					mqd_mem_obj);
+
+	if (retval != 0)
+		return -ENOMEM;
+
+	m = (struct cik_mqd *) (*mqd_mem_obj)->cpu_ptr;
+	addr = (*mqd_mem_obj)->gpu_addr;
+
+	memset(m, 0, ALIGN(sizeof(struct cik_mqd), 256));
+
+	m->header = 0xC0310800;
+	m->compute_pipelinestat_enable = 1;
+	m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF;
+	m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF;
+	m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF;
+	m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF;
+
+	/*
+	 * Make sure to use the last queue state saved on mqd when the cp
+	 * reassigns the queue, so when queue is switched on/off (e.g over
+	 * subscription or quantum timeout) the context will be consistent
+	 */
+	m->cp_hqd_persistent_state =
+				DEFAULT_CP_HQD_PERSISTENT_STATE | PRELOAD_REQ;
+
+	m->cp_mqd_control             = MQD_CONTROL_PRIV_STATE_EN;
+	m->cp_mqd_base_addr_lo        = lower_32_bits(addr);
+	m->cp_mqd_base_addr_hi        = upper_32_bits(addr);
+
+	m->cp_hqd_ib_control = DEFAULT_MIN_IB_AVAIL_SIZE | IB_ATC_EN;
+	/* Although WinKFD writes this, I suspect it should not be necessary */
+	m->cp_hqd_ib_control = IB_ATC_EN | DEFAULT_MIN_IB_AVAIL_SIZE;
+
+	m->cp_hqd_quantum = QUANTUM_EN | QUANTUM_SCALE_1MS |
+				QUANTUM_DURATION(10);
+
+	/*
+	 * Pipe Priority
+	 * Identifies the pipe relative priority when this queue is connected
+	 * to the pipeline. The pipe priority is against the GFX pipe and HP3D.
+	 * In KFD we are using a fixed pipe priority set to CS_MEDIUM.
+	 * 0 = CS_LOW (typically below GFX)
+	 * 1 = CS_MEDIUM (typically between HP3D and GFX
+	 * 2 = CS_HIGH (typically above HP3D)
+	 */
+	m->cp_hqd_pipe_priority = 1;
+	m->cp_hqd_queue_priority = 15;
+
+	*mqd = m;
+	if (gart_addr != NULL)
+		*gart_addr = addr;
+	retval = mm->update_mqd(mm, m, q);
+
+	return retval;
+}
+
+static int init_mqd_sdma(struct mqd_manager *mm, void **mqd,
+			struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
+			struct queue_properties *q)
+{
+	int retval;
+	struct cik_sdma_rlc_registers *m;
+
+	BUG_ON(!mm || !mqd || !mqd_mem_obj);
+
+	retval = kfd_gtt_sa_allocate(mm->dev,
+					sizeof(struct cik_sdma_rlc_registers),
+					mqd_mem_obj);
+
+	if (retval != 0)
+		return -ENOMEM;
+
+	m = (struct cik_sdma_rlc_registers *) (*mqd_mem_obj)->cpu_ptr;
+
+	memset(m, 0, sizeof(struct cik_sdma_rlc_registers));
+
+	*mqd = m;
+	if (gart_addr != NULL)
+		*gart_addr = (*mqd_mem_obj)->gpu_addr;
+
+	retval = mm->update_mqd(mm, m, q);
+
+	return retval;
+}
+
+static void uninit_mqd(struct mqd_manager *mm, void *mqd,
+			struct kfd_mem_obj *mqd_mem_obj)
+{
+	BUG_ON(!mm || !mqd);
+	kfd_gtt_sa_free(mm->dev, mqd_mem_obj);
+}
+
+static void uninit_mqd_sdma(struct mqd_manager *mm, void *mqd,
+				struct kfd_mem_obj *mqd_mem_obj)
+{
+	BUG_ON(!mm || !mqd);
+	kfd_gtt_sa_free(mm->dev, mqd_mem_obj);
+}
+
+static int load_mqd(struct mqd_manager *mm, void *mqd, uint32_t pipe_id,
+			uint32_t queue_id, uint32_t __user *wptr)
+{
+	return kfd2kgd->hqd_load(mm->dev->kgd, mqd, pipe_id, queue_id, wptr);
+}
+
+static int load_mqd_sdma(struct mqd_manager *mm, void *mqd,
+			uint32_t pipe_id, uint32_t queue_id,
+			uint32_t __user *wptr)
+{
+	return kfd2kgd->hqd_sdma_load(mm->dev->kgd, mqd);
+}
+
+static int update_mqd(struct mqd_manager *mm, void *mqd,
+			struct queue_properties *q)
+{
+	struct cik_mqd *m;
+
+	BUG_ON(!mm || !q || !mqd);
+
+	pr_debug("kfd: In func %s\n", __func__);
+
+	m = get_mqd(mqd);
+	m->cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE |
+				DEFAULT_MIN_AVAIL_SIZE | PQ_ATC_EN;
+
+	/*
+	 * Calculating queue size which is log base 2 of actual queue size -1
+	 * dwords and another -1 for ffs
+	 */
+	m->cp_hqd_pq_control |= ffs(q->queue_size / sizeof(unsigned int))
+								- 1 - 1;
+	m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
+	m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
+	m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
+	m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
+	m->cp_hqd_pq_doorbell_control = DOORBELL_EN |
+					DOORBELL_OFFSET(q->doorbell_off);
+
+	m->cp_hqd_vmid = q->vmid;
+
+	if (q->format == KFD_QUEUE_FORMAT_AQL) {
+		m->cp_hqd_iq_rptr = AQL_ENABLE;
+		m->cp_hqd_pq_control |= NO_UPDATE_RPTR;
+	}
+
+	m->cp_hqd_active = 0;
+	q->is_active = false;
+	if (q->queue_size > 0 &&
+			q->queue_address != 0 &&
+			q->queue_percent > 0) {
+		m->cp_hqd_active = 1;
+		q->is_active = true;
+	}
+
+	return 0;
+}
+
+static int update_mqd_sdma(struct mqd_manager *mm, void *mqd,
+				struct queue_properties *q)
+{
+	struct cik_sdma_rlc_registers *m;
+
+	BUG_ON(!mm || !mqd || !q);
+
+	m = get_sdma_mqd(mqd);
+	m->sdma_rlc_rb_cntl =
+		SDMA_RB_SIZE((ffs(q->queue_size / sizeof(unsigned int)))) |
+		SDMA_RB_VMID(q->vmid) |
+		SDMA_RPTR_WRITEBACK_ENABLE |
+		SDMA_RPTR_WRITEBACK_TIMER(6);
+
+	m->sdma_rlc_rb_base = lower_32_bits(q->queue_address >> 8);
+	m->sdma_rlc_rb_base_hi = upper_32_bits(q->queue_address >> 8);
+	m->sdma_rlc_rb_rptr_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
+	m->sdma_rlc_rb_rptr_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
+	m->sdma_rlc_doorbell = SDMA_OFFSET(q->doorbell_off) | SDMA_DB_ENABLE;
+	m->sdma_rlc_virtual_addr = q->sdma_vm_addr;
+
+	m->sdma_engine_id = q->sdma_engine_id;
+	m->sdma_queue_id = q->sdma_queue_id;
+
+	q->is_active = false;
+	if (q->queue_size > 0 &&
+			q->queue_address != 0 &&
+			q->queue_percent > 0) {
+		m->sdma_rlc_rb_cntl |= SDMA_RB_ENABLE;
+		q->is_active = true;
+	}
+
+	return 0;
+}
+
+static int destroy_mqd(struct mqd_manager *mm, void *mqd,
+			enum kfd_preempt_type type,
+			unsigned int timeout, uint32_t pipe_id,
+			uint32_t queue_id)
+{
+	return kfd2kgd->hqd_destroy(mm->dev->kgd, type, timeout,
+					pipe_id, queue_id);
+}
+
+/*
+ * preempt type here is ignored because there is only one way
+ * to preempt sdma queue
+ */
+static int destroy_mqd_sdma(struct mqd_manager *mm, void *mqd,
+				enum kfd_preempt_type type,
+				unsigned int timeout, uint32_t pipe_id,
+				uint32_t queue_id)
+{
+	return kfd2kgd->hqd_sdma_destroy(mm->dev->kgd, mqd, timeout);
+}
+
+static bool is_occupied(struct mqd_manager *mm, void *mqd,
+			uint64_t queue_address,	uint32_t pipe_id,
+			uint32_t queue_id)
+{
+
+	return kfd2kgd->hqd_is_occupies(mm->dev->kgd, queue_address,
+					pipe_id, queue_id);
+
+}
+
+static bool is_occupied_sdma(struct mqd_manager *mm, void *mqd,
+			uint64_t queue_address,	uint32_t pipe_id,
+			uint32_t queue_id)
+{
+	return kfd2kgd->hqd_sdma_is_occupied(mm->dev->kgd, mqd);
+}
+
+/*
+ * HIQ MQD Implementation, concrete implementation for HIQ MQD implementation.
+ * The HIQ queue in Kaveri is using the same MQD structure as all the user mode
+ * queues but with different initial values.
+ */
+
+static int init_mqd_hiq(struct mqd_manager *mm, void **mqd,
+		struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
+		struct queue_properties *q)
+{
+	uint64_t addr;
+	struct cik_mqd *m;
+	int retval;
+
+	BUG_ON(!mm || !q || !mqd || !mqd_mem_obj);
+
+	pr_debug("kfd: In func %s\n", __func__);
+
+	retval = kfd_gtt_sa_allocate(mm->dev, sizeof(struct cik_mqd),
+					mqd_mem_obj);
+
+	if (retval != 0)
+		return -ENOMEM;
+
+	m = (struct cik_mqd *) (*mqd_mem_obj)->cpu_ptr;
+	addr = (*mqd_mem_obj)->gpu_addr;
+
+	memset(m, 0, ALIGN(sizeof(struct cik_mqd), 256));
+
+	m->header = 0xC0310800;
+	m->compute_pipelinestat_enable = 1;
+	m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF;
+	m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF;
+	m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF;
+	m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF;
+
+	m->cp_hqd_persistent_state = DEFAULT_CP_HQD_PERSISTENT_STATE |
+					PRELOAD_REQ;
+	m->cp_hqd_quantum = QUANTUM_EN | QUANTUM_SCALE_1MS |
+				QUANTUM_DURATION(10);
+
+	m->cp_mqd_control             = MQD_CONTROL_PRIV_STATE_EN;
+	m->cp_mqd_base_addr_lo        = lower_32_bits(addr);
+	m->cp_mqd_base_addr_hi        = upper_32_bits(addr);
+
+	m->cp_hqd_ib_control = DEFAULT_MIN_IB_AVAIL_SIZE;
+
+	/*
+	 * Pipe Priority
+	 * Identifies the pipe relative priority when this queue is connected
+	 * to the pipeline. The pipe priority is against the GFX pipe and HP3D.
+	 * In KFD we are using a fixed pipe priority set to CS_MEDIUM.
+	 * 0 = CS_LOW (typically below GFX)
+	 * 1 = CS_MEDIUM (typically between HP3D and GFX
+	 * 2 = CS_HIGH (typically above HP3D)
+	 */
+	m->cp_hqd_pipe_priority = 1;
+	m->cp_hqd_queue_priority = 15;
+
+	*mqd = m;
+	if (gart_addr)
+		*gart_addr = addr;
+	retval = mm->update_mqd(mm, m, q);
+
+	return retval;
+}
+
+static int update_mqd_hiq(struct mqd_manager *mm, void *mqd,
+				struct queue_properties *q)
+{
+	struct cik_mqd *m;
+
+	BUG_ON(!mm || !q || !mqd);
+
+	pr_debug("kfd: In func %s\n", __func__);
+
+	m = get_mqd(mqd);
+	m->cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE |
+				DEFAULT_MIN_AVAIL_SIZE |
+				PRIV_STATE |
+				KMD_QUEUE;
+
+	/*
+	 * Calculating queue size which is log base 2 of actual queue
+	 * size -1 dwords
+	 */
+	m->cp_hqd_pq_control |= ffs(q->queue_size / sizeof(unsigned int))
+								- 1 - 1;
+	m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
+	m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
+	m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
+	m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
+	m->cp_hqd_pq_doorbell_control = DOORBELL_EN |
+					DOORBELL_OFFSET(q->doorbell_off);
+
+	m->cp_hqd_vmid = q->vmid;
+
+	m->cp_hqd_active = 0;
+	q->is_active = false;
+	if (q->queue_size > 0 &&
+			q->queue_address != 0 &&
+			q->queue_percent > 0) {
+		m->cp_hqd_active = 1;
+		q->is_active = true;
+	}
+
+	return 0;
+}
+
+struct cik_sdma_rlc_registers *get_sdma_mqd(void *mqd)
+{
+	struct cik_sdma_rlc_registers *m;
+
+	BUG_ON(!mqd);
+
+	m = (struct cik_sdma_rlc_registers *)mqd;
+
+	return m;
+}
+
+struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type,
+		struct kfd_dev *dev)
+{
+	struct mqd_manager *mqd;
+
+	BUG_ON(!dev);
+	BUG_ON(type >= KFD_MQD_TYPE_MAX);
+
+	pr_debug("kfd: In func %s\n", __func__);
+
+	mqd = kzalloc(sizeof(struct mqd_manager), GFP_KERNEL);
+	if (!mqd)
+		return NULL;
+
+	mqd->dev = dev;
+
+	switch (type) {
+	case KFD_MQD_TYPE_CP:
+	case KFD_MQD_TYPE_COMPUTE:
+		mqd->init_mqd = init_mqd;
+		mqd->uninit_mqd = uninit_mqd;
+		mqd->load_mqd = load_mqd;
+		mqd->update_mqd = update_mqd;
+		mqd->destroy_mqd = destroy_mqd;
+		mqd->is_occupied = is_occupied;
+		break;
+	case KFD_MQD_TYPE_HIQ:
+		mqd->init_mqd = init_mqd_hiq;
+		mqd->uninit_mqd = uninit_mqd;
+		mqd->load_mqd = load_mqd;
+		mqd->update_mqd = update_mqd_hiq;
+		mqd->destroy_mqd = destroy_mqd;
+		mqd->is_occupied = is_occupied;
+		break;
+	case KFD_MQD_TYPE_SDMA:
+		mqd->init_mqd = init_mqd_sdma;
+		mqd->uninit_mqd = uninit_mqd_sdma;
+		mqd->load_mqd = load_mqd_sdma;
+		mqd->update_mqd = update_mqd_sdma;
+		mqd->destroy_mqd = destroy_mqd_sdma;
+		mqd->is_occupied = is_occupied_sdma;
+		break;
+	default:
+		kfree(mqd);
+		return NULL;
+	}
+
+	return mqd;
+}
+

drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c

+/*
+ * Copyright 2014 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/printk.h>
+#include "kfd_priv.h"
+#include "kfd_mqd_manager.h"
+
+struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type,
+					struct kfd_dev *dev)
+{
+	pr_warn("amdkfd: VI MQD is not currently supported\n");
+	return NULL;
+}

drivers/gpu/drm/amd/amdkfd/kfd_priv.h

@@ -573,6 +573,10 @@ void print_queue(struct queue *q);
 
 struct mqd_manager *mqd_manager_init(enum KFD_MQD_TYPE type,
 					struct kfd_dev *dev);
+struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type,
+		struct kfd_dev *dev);
+struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type,
+		struct kfd_dev *dev);
 struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev);
 void device_queue_manager_uninit(struct device_queue_manager *dqm);
 struct kernel_queue *kernel_queue_init(struct kfd_dev *dev,