drm/amdkfd: add debug wave launch override operation

[linux-2.6-microblaze.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_amdkfd_aldebaran.c

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_aldebaran.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_aldebaran.c
index 4485bb2..d7881bb 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_aldebaran.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_aldebaran.c
@@ -23,6 +23,89 @@
 #include "amdgpu_amdkfd.h"
 #include "amdgpu_amdkfd_arcturus.h"
 #include "amdgpu_amdkfd_gfx_v9.h"
+#include "gc/gc_9_4_2_offset.h"
+#include "gc/gc_9_4_2_sh_mask.h"
+#include <uapi/linux/kfd_ioctl.h>
+
+/*
+ * Returns TRAP_EN, EXCP_EN and EXCP_REPLACE.
+ *
+ * restore_dbg_registers is ignored here but is a general interface requirement
+ * for devices that support GFXOFF and where the RLC save/restore list
+ * does not support hw registers for debugging i.e. the driver has to manually
+ * initialize the debug mode registers after it has disabled GFX off during the
+ * debug session.
+ */
+static uint32_t kgd_aldebaran_enable_debug_trap(struct amdgpu_device *adev,
+                                           bool restore_dbg_registers,
+                                           uint32_t vmid)
+{
+       uint32_t data = 0;
+
+       data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, TRAP_EN, 1);
+       data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_EN, 0);
+       data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_REPLACE, 0);
+
+       return data;
+}
+
+/* returns TRAP_EN, EXCP_EN and EXCP_REPLACE. */
+static uint32_t kgd_aldebaran_disable_debug_trap(struct amdgpu_device *adev,
+                                               bool keep_trap_enabled,
+                                               uint32_t vmid)
+{
+       uint32_t data = 0;
+
+       data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, TRAP_EN, keep_trap_enabled);
+       data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_EN, 0);
+       data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_REPLACE, 0);
+
+       return data;
+}
+
+static int kgd_aldebaran_validate_trap_override_request(struct amdgpu_device *adev,
+                                                       uint32_t trap_override,
+                                                       uint32_t *trap_mask_supported)
+{
+       *trap_mask_supported &= KFD_DBG_TRAP_MASK_FP_INVALID |
+                               KFD_DBG_TRAP_MASK_FP_INPUT_DENORMAL |
+                               KFD_DBG_TRAP_MASK_FP_DIVIDE_BY_ZERO |
+                               KFD_DBG_TRAP_MASK_FP_OVERFLOW |
+                               KFD_DBG_TRAP_MASK_FP_UNDERFLOW |
+                               KFD_DBG_TRAP_MASK_FP_INEXACT |
+                               KFD_DBG_TRAP_MASK_INT_DIVIDE_BY_ZERO |
+                               KFD_DBG_TRAP_MASK_DBG_ADDRESS_WATCH |
+                               KFD_DBG_TRAP_MASK_DBG_MEMORY_VIOLATION;
+
+       if (trap_override != KFD_DBG_TRAP_OVERRIDE_OR &&
+                       trap_override != KFD_DBG_TRAP_OVERRIDE_REPLACE)
+               return -EPERM;
+
+       return 0;
+}
+
+/* returns TRAP_EN, EXCP_EN and EXCP_RPLACE. */
+static uint32_t kgd_aldebaran_set_wave_launch_trap_override(struct amdgpu_device *adev,
+                                       uint32_t vmid,
+                                       uint32_t trap_override,
+                                       uint32_t trap_mask_bits,
+                                       uint32_t trap_mask_request,
+                                       uint32_t *trap_mask_prev,
+                                       uint32_t kfd_dbg_trap_cntl_prev)
+
+{
+       uint32_t data = 0;
+
+       *trap_mask_prev = REG_GET_FIELD(kfd_dbg_trap_cntl_prev, SPI_GDBG_PER_VMID_CNTL, EXCP_EN);
+       trap_mask_bits = (trap_mask_bits & trap_mask_request) |
+               (*trap_mask_prev & ~trap_mask_request);
+
+       data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, TRAP_EN, 1);
+       data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_EN, trap_mask_bits);
+       data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_REPLACE, trap_override);
+
+       return data;
+}
 
 const struct kfd2kgd_calls aldebaran_kfd2kgd = {
        .program_sh_mem_settings = kgd_gfx_v9_program_sh_mem_settings,
@@ -42,5 +125,11 @@ const struct kfd2kgd_calls aldebaran_kfd2kgd = {
                                kgd_gfx_v9_get_atc_vmid_pasid_mapping_info,
        .set_vm_context_page_table_base = kgd_gfx_v9_set_vm_context_page_table_base,
        .get_cu_occupancy = kgd_gfx_v9_get_cu_occupancy,
-       .program_trap_handler_settings = kgd_gfx_v9_program_trap_handler_settings
+       .enable_debug_trap = kgd_aldebaran_enable_debug_trap,
+       .disable_debug_trap = kgd_aldebaran_disable_debug_trap,
+       .validate_trap_override_request = kgd_aldebaran_validate_trap_override_request,
+       .set_wave_launch_trap_override = kgd_aldebaran_set_wave_launch_trap_override,
+       .get_iq_wait_times = kgd_gfx_v9_get_iq_wait_times,
+       .build_grace_period_packet_info = kgd_gfx_v9_build_grace_period_packet_info,
+       .program_trap_handler_settings = kgd_gfx_v9_program_trap_handler_settings,
 };