drm/amdkfd: add per-vmid-debug map_process_support

In order to support multi-process debugging, HWS PM4 packet
MAP_PROCESS requires an extension of 5 DWORDS to support targeting of
per-vmid SPI debug control registers as well as watch points per process.
Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -26,6 +26,7 @@
 #include "kfd_priv.h"
 #include "kfd_device_queue_manager.h"
 #include "kfd_pm4_headers_vi.h"
+#include "kfd_pm4_headers_aldebaran.h"
 #include "cwsr_trap_handler.h"
 #include "kfd_iommu.h"
 #include "amdgpu_amdkfd.h"
@@ -714,7 +715,7 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
 			 struct drm_device *ddev,
 			 const struct kgd2kfd_shared_resources *gpu_resources)
 {
-	unsigned int size;
+	unsigned int size, map_process_packet_size;
 
 	kfd->ddev = ddev;
 	kfd->mec_fw_version = amdgpu_amdkfd_get_fw_version(kfd->kgd,
@@ -749,7 +750,11 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
 	 * calculate max size of runlist packet.
 	 * There can be only 2 packets at once
 	 */
-	size += (KFD_MAX_NUM_OF_PROCESSES * sizeof(struct pm4_mes_map_process) +
+	map_process_packet_size =
+			kfd->device_info->asic_family == CHIP_ALDEBARAN ?
+				sizeof(struct pm4_mes_map_process_aldebaran) :
+					sizeof(struct pm4_mes_map_process);
+	size += (KFD_MAX_NUM_OF_PROCESSES * map_process_packet_size +
 		max_num_of_queues_per_device * sizeof(struct pm4_mes_map_queues)
 		+ sizeof(struct pm4_mes_runlist)) * 2;
 

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

@@ -242,7 +242,6 @@ int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm)
 	case CHIP_RAVEN:
 	case CHIP_RENOIR:
 	case CHIP_ARCTURUS:
-	case CHIP_ALDEBARAN:
 	case CHIP_NAVI10:
 	case CHIP_NAVI12:
 	case CHIP_NAVI14:
@@ -252,6 +251,9 @@ int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm)
 	case CHIP_DIMGREY_CAVEFISH:
 		pm->pmf = &kfd_v9_pm_funcs;
 		break;
+	case CHIP_ALDEBARAN:
+		pm->pmf = &kfd_aldebaran_pm_funcs;
+		break;
 	default:
 		WARN(1, "Unexpected ASIC family %u",
 		     dqm->dev->device_info->asic_family);

drivers/gpu/drm/amd/amdkfd/kfd_packet_manager_v9.c

@@ -24,6 +24,7 @@
 #include "kfd_kernel_queue.h"
 #include "kfd_device_queue_manager.h"
 #include "kfd_pm4_headers_ai.h"
+#include "kfd_pm4_headers_aldebaran.h"
 #include "kfd_pm4_opcodes.h"
 #include "gc/gc_10_1_0_sh_mask.h"
 
@@ -35,7 +36,6 @@ static int pm_map_process_v9(struct packet_manager *pm,
 
 	packet = (struct pm4_mes_map_process *)buffer;
 	memset(buffer, 0, sizeof(struct pm4_mes_map_process));
-
 	packet->header.u32All = pm_build_pm4_header(IT_MAP_PROCESS,
 					sizeof(struct pm4_mes_map_process));
 	packet->bitfields2.diq_enable = (qpd->is_debug) ? 1 : 0;
@@ -73,6 +73,45 @@ static int pm_map_process_v9(struct packet_manager *pm,
 	return 0;
 }
 
+static int pm_map_process_aldebaran(struct packet_manager *pm,
+		uint32_t *buffer, struct qcm_process_device *qpd)
+{
+	struct pm4_mes_map_process_aldebaran *packet;
+	uint64_t vm_page_table_base_addr = qpd->page_table_base;
+
+	packet = (struct pm4_mes_map_process_aldebaran *)buffer;
+	memset(buffer, 0, sizeof(struct pm4_mes_map_process_aldebaran));
+	packet->header.u32All = pm_build_pm4_header(IT_MAP_PROCESS,
+			sizeof(struct pm4_mes_map_process_aldebaran));
+	packet->bitfields2.diq_enable = (qpd->is_debug) ? 1 : 0;
+	packet->bitfields2.process_quantum = 10;
+	packet->bitfields2.pasid = qpd->pqm->process->pasid;
+	packet->bitfields14.gds_size = qpd->gds_size & 0x3F;
+	packet->bitfields14.gds_size_hi = (qpd->gds_size >> 6) & 0xF;
+	packet->bitfields14.num_gws = (qpd->mapped_gws_queue) ? qpd->num_gws : 0;
+	packet->bitfields14.num_oac = qpd->num_oac;
+	packet->bitfields14.sdma_enable = 1;
+	packet->bitfields14.num_queues = (qpd->is_debug) ? 0 : qpd->queue_count;
+
+	packet->sh_mem_config = qpd->sh_mem_config;
+	packet->sh_mem_bases = qpd->sh_mem_bases;
+	if (qpd->tba_addr) {
+		packet->sq_shader_tba_lo = lower_32_bits(qpd->tba_addr >> 8);
+		packet->sq_shader_tma_lo = lower_32_bits(qpd->tma_addr >> 8);
+		packet->sq_shader_tma_hi = upper_32_bits(qpd->tma_addr >> 8);
+	}
+
+	packet->gds_addr_lo = lower_32_bits(qpd->gds_context_area);
+	packet->gds_addr_hi = upper_32_bits(qpd->gds_context_area);
+
+	packet->vm_context_page_table_base_addr_lo32 =
+			lower_32_bits(vm_page_table_base_addr);
+	packet->vm_context_page_table_base_addr_hi32 =
+			upper_32_bits(vm_page_table_base_addr);
+
+	return 0;
+}
+
 static int pm_runlist_v9(struct packet_manager *pm, uint32_t *buffer,
 			uint64_t ib, size_t ib_size_in_dwords, bool chain)
 {
@@ -324,3 +363,20 @@ const struct packet_manager_funcs kfd_v9_pm_funcs = {
 	.query_status_size	= sizeof(struct pm4_mes_query_status),
 	.release_mem_size	= 0,
 };
+
+const struct packet_manager_funcs kfd_aldebaran_pm_funcs = {
+	.map_process		= pm_map_process_aldebaran,
+	.runlist		= pm_runlist_v9,
+	.set_resources		= pm_set_resources_v9,
+	.map_queues		= pm_map_queues_v9,
+	.unmap_queues		= pm_unmap_queues_v9,
+	.query_status		= pm_query_status_v9,
+	.release_mem		= NULL,
+	.map_process_size	= sizeof(struct pm4_mes_map_process_aldebaran),
+	.runlist_size		= sizeof(struct pm4_mes_runlist),
+	.set_resources_size	= sizeof(struct pm4_mes_set_resources),
+	.map_queues_size	= sizeof(struct pm4_mes_map_queues),
+	.unmap_queues_size	= sizeof(struct pm4_mes_unmap_queues),
+	.query_status_size	= sizeof(struct pm4_mes_query_status),
+	.release_mem_size	= 0,
+};

drivers/gpu/drm/amd/amdkfd/kfd_pm4_headers_aldebaran.h

+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+/*--------------------MES_MAP_PROCESS (PER DEBUG VMID)--------------------*/
+
+#ifndef PM4_MES_MAP_PROCESS_PER_DEBUG_VMID_DEFINED
+#define PM4_MES_MAP_PROCESS_PER_DEBUG_VMID_DEFINED
+
+struct pm4_mes_map_process_aldebaran {
+	union {
+		union PM4_MES_TYPE_3_HEADER header;	/* header */
+		uint32_t ordinal1;
+	};
+
+	union {
+		struct {
+			uint32_t pasid:16;	    /* 0 - 15  */
+			uint32_t single_memops:1;   /* 16      */
+			uint32_t reserved1:1;	    /* 17      */
+			uint32_t debug_vmid:4;	    /* 18 - 21 */
+			uint32_t new_debug:1;	    /* 22      */
+			uint32_t tmz:1;		    /* 23      */
+			uint32_t diq_enable:1;      /* 24      */
+			uint32_t process_quantum:7; /* 25 - 31 */
+		} bitfields2;
+		uint32_t ordinal2;
+	};
+
+	uint32_t vm_context_page_table_base_addr_lo32;
+
+	uint32_t vm_context_page_table_base_addr_hi32;
+
+	uint32_t sh_mem_bases;
+
+	uint32_t sh_mem_config;
+
+	uint32_t sq_shader_tba_lo;
+
+	uint32_t sq_shader_tba_hi;
+
+	uint32_t sq_shader_tma_lo;
+
+	uint32_t sq_shader_tma_hi;
+
+	uint32_t reserved6;
+
+	uint32_t gds_addr_lo;
+
+	uint32_t gds_addr_hi;
+
+	union {
+		struct {
+			uint32_t num_gws:7;
+			uint32_t sdma_enable:1;
+			uint32_t num_oac:4;
+			uint32_t gds_size_hi:4;
+			uint32_t gds_size:6;
+			uint32_t num_queues:10;
+		} bitfields14;
+		uint32_t ordinal14;
+	};
+
+	uint32_t spi_gdbg_per_vmid_cntl;
+
+	uint32_t tcp_watch_cntl[4];
+
+	uint32_t completion_signal_lo;
+
+	uint32_t completion_signal_hi;
+
+};
+
+#endif

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

@@ -1088,6 +1088,7 @@ struct packet_manager_funcs {
 
 extern const struct packet_manager_funcs kfd_vi_pm_funcs;
 extern const struct packet_manager_funcs kfd_v9_pm_funcs;
+extern const struct packet_manager_funcs kfd_aldebaran_pm_funcs;
 
 int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm);
 void pm_uninit(struct packet_manager *pm, bool hanging);