diff options
Diffstat (limited to 'drivers/gpu/drm/xe')
| -rw-r--r-- | drivers/gpu/drm/xe/instructions/xe_instr_defs.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/instructions/xe_mi_commands.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt_debugfs.c | 46 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_lrc.c | 97 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_lrc.h | 5 |
5 files changed, 152 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/instructions/xe_instr_defs.h b/drivers/gpu/drm/xe/instructions/xe_instr_defs.h index a7ec46395786..e403b4fcc20a 100644 --- a/drivers/gpu/drm/xe/instructions/xe_instr_defs.h +++ b/drivers/gpu/drm/xe/instructions/xe_instr_defs.h @@ -15,6 +15,7 @@ */ #define XE_INSTR_CMD_TYPE GENMASK(31, 29) #define XE_INSTR_MI REG_FIELD_PREP(XE_INSTR_CMD_TYPE, 0x0) +#define XE_INSTR_GFXPIPE REG_FIELD_PREP(XE_INSTR_CMD_TYPE, 0x3) /* * Most (but not all) instructions have a "length" field in the instruction diff --git a/drivers/gpu/drm/xe/instructions/xe_mi_commands.h b/drivers/gpu/drm/xe/instructions/xe_mi_commands.h index 753ebf1efa78..1cfa96167fde 100644 --- a/drivers/gpu/drm/xe/instructions/xe_mi_commands.h +++ b/drivers/gpu/drm/xe/instructions/xe_mi_commands.h @@ -30,6 +30,9 @@ #define MI_ARB_DISABLE 0x0 #define MI_BATCH_BUFFER_END __MI_INSTR(0xA) +#define MI_TOPOLOGY_FILTER __MI_INSTR(0xD) +#define MI_FORCE_WAKEUP __MI_INSTR(0x1D) + #define MI_STORE_DATA_IMM __MI_INSTR(0x20) #define MI_SDI_GGTT REG_BIT(22) #define MI_SDI_LEN_DW GENMASK(9, 0) diff --git a/drivers/gpu/drm/xe/xe_gt_debugfs.c b/drivers/gpu/drm/xe/xe_gt_debugfs.c index cd6d28c7b923..c4b67cf09f8f 100644 --- a/drivers/gpu/drm/xe/xe_gt_debugfs.c +++ b/drivers/gpu/drm/xe/xe_gt_debugfs.c @@ -15,6 +15,7 @@ #include "xe_gt_mcr.h" #include "xe_gt_topology.h" #include "xe_hw_engine.h" +#include "xe_lrc.h" #include "xe_macros.h" #include "xe_pat.h" #include "xe_reg_sr.h" @@ -149,6 +150,46 @@ static int pat(struct seq_file *m, void *data) return 0; } +static int rcs_default_lrc(struct seq_file *m, void *data) +{ + struct drm_printer p = drm_seq_file_printer(m); + + xe_lrc_dump_default(&p, node_to_gt(m->private), XE_ENGINE_CLASS_RENDER); + return 0; +} + +static int ccs_default_lrc(struct seq_file *m, void *data) +{ + struct drm_printer p = drm_seq_file_printer(m); + + xe_lrc_dump_default(&p, node_to_gt(m->private), XE_ENGINE_CLASS_COMPUTE); + return 0; +} + +static int bcs_default_lrc(struct seq_file *m, void *data) +{ + struct drm_printer p = drm_seq_file_printer(m); + + xe_lrc_dump_default(&p, node_to_gt(m->private), XE_ENGINE_CLASS_COPY); + return 0; +} + +static int vcs_default_lrc(struct seq_file *m, void *data) +{ + struct drm_printer p = drm_seq_file_printer(m); + + xe_lrc_dump_default(&p, node_to_gt(m->private), XE_ENGINE_CLASS_VIDEO_DECODE); + return 0; +} + +static int vecs_default_lrc(struct seq_file *m, void *data) +{ + struct drm_printer p = drm_seq_file_printer(m); + + xe_lrc_dump_default(&p, node_to_gt(m->private), XE_ENGINE_CLASS_VIDEO_ENHANCE); + return 0; +} + static const struct drm_info_list debugfs_list[] = { {"hw_engines", hw_engines, 0}, {"force_reset", force_reset, 0}, @@ -159,6 +200,11 @@ static const struct drm_info_list debugfs_list[] = { {"register-save-restore", register_save_restore, 0}, {"workarounds", workarounds, 0}, {"pat", pat, 0}, + {"default_lrc_rcs", rcs_default_lrc}, + {"default_lrc_ccs", ccs_default_lrc}, + {"default_lrc_bcs", bcs_default_lrc}, + {"default_lrc_vcs", vcs_default_lrc}, + {"default_lrc_vecs", vecs_default_lrc}, }; void xe_gt_debugfs_register(struct xe_gt *gt) diff --git a/drivers/gpu/drm/xe/xe_lrc.c b/drivers/gpu/drm/xe/xe_lrc.c index a04867131839..38e98c54464b 100644 --- a/drivers/gpu/drm/xe/xe_lrc.c +++ b/drivers/gpu/drm/xe/xe_lrc.c @@ -16,6 +16,7 @@ #include "xe_drm_client.h" #include "xe_exec_queue_types.h" #include "xe_gt.h" +#include "xe_gt_printk.h" #include "xe_hw_fence.h" #include "xe_map.h" #include "xe_vm.h" @@ -903,3 +904,99 @@ struct iosys_map xe_lrc_parallel_map(struct xe_lrc *lrc) { return __xe_lrc_parallel_map(lrc); } + +static int instr_dw(u32 cmd_header) +{ + /* Most instructions have the # of dwords (minus 2) in 7:0 */ + return REG_FIELD_GET(XE_INSTR_LEN_MASK, cmd_header) + 2; +} + +static int dump_mi_command(struct drm_printer *p, + struct xe_gt *gt, + u32 *dw, + int remaining_dw) +{ + u32 inst_header = *dw; + u32 numdw = instr_dw(inst_header); + u32 opcode = REG_FIELD_GET(MI_OPCODE, inst_header); + int num_noop; + + /* First check for commands that don't have/use a '# DW' field */ + switch (inst_header & MI_OPCODE) { + case MI_NOOP: + num_noop = 1; + while (num_noop < remaining_dw && + (*(++dw) & REG_GENMASK(31, 23)) == MI_NOOP) + num_noop++; + drm_printf(p, "[%#010x] MI_NOOP (%d dwords)\n", inst_header, num_noop); + return num_noop; + + case MI_TOPOLOGY_FILTER: + drm_printf(p, "[%#010x] MI_TOPOLOGY_FILTER\n", inst_header); + return 1; + + case MI_BATCH_BUFFER_END: + drm_printf(p, "[%#010x] MI_BATCH_BUFFER_END\n", inst_header); + /* Return 'remaining_dw' to consume the rest of the LRC */ + return remaining_dw; + } + + /* + * Any remaining commands include a # of dwords. We should make sure + * it doesn't exceed the remaining size of the LRC. + */ + if (xe_gt_WARN_ON(gt, numdw > remaining_dw)) + numdw = remaining_dw; + + switch (inst_header & MI_OPCODE) { + case MI_LOAD_REGISTER_IMM: + drm_printf(p, "[%#010x] MI_LOAD_REGISTER_IMM: %d regs\n", + inst_header, (numdw - 1) / 2); + for (int i = 1; i < numdw; i += 2) + drm_printf(p, " - %#6x = %#010x\n", dw[i], dw[i + 1]); + return numdw; + + case MI_FORCE_WAKEUP: + drm_printf(p, "[%#010x] MI_FORCE_WAKEUP\n", inst_header); + return numdw; + + default: + drm_printf(p, "[%#010x] unknown MI opcode %#x, likely %d dwords\n", + inst_header, opcode, numdw); + return numdw; + } +} + +void xe_lrc_dump_default(struct drm_printer *p, + struct xe_gt *gt, + enum xe_engine_class hwe_class) +{ + u32 *dw; + int remaining_dw, num_dw; + + if (!gt->default_lrc[hwe_class]) { + drm_printf(p, "No default LRC for class %d\n", hwe_class); + return; + } + + /* + * Skip the beginning of the LRC since it contains the per-process + * hardware status page. + */ + dw = gt->default_lrc[hwe_class] + LRC_PPHWSP_SIZE; + remaining_dw = (xe_lrc_size(gt_to_xe(gt), hwe_class) - LRC_PPHWSP_SIZE) / 4; + + while (remaining_dw > 0) { + if ((*dw & XE_INSTR_CMD_TYPE) == XE_INSTR_MI) { + num_dw = dump_mi_command(p, gt, dw, remaining_dw); + } else { + num_dw = min(instr_dw(*dw), remaining_dw); + drm_printf(p, "[%#10x] Unknown instruction of type %#x, likely %d dwords\n", + *dw, REG_FIELD_GET(XE_INSTR_CMD_TYPE, *dw), + num_dw); + } + + dw += num_dw; + remaining_dw -= num_dw; + } +} diff --git a/drivers/gpu/drm/xe/xe_lrc.h b/drivers/gpu/drm/xe/xe_lrc.h index 3a6e8fc5a837..a7056eda5e0c 100644 --- a/drivers/gpu/drm/xe/xe_lrc.h +++ b/drivers/gpu/drm/xe/xe_lrc.h @@ -7,6 +7,7 @@ #include "xe_lrc_types.h" +struct drm_printer; struct xe_device; struct xe_exec_queue; enum xe_engine_class; @@ -47,4 +48,8 @@ struct iosys_map xe_lrc_parallel_map(struct xe_lrc *lrc); size_t xe_lrc_skip_size(struct xe_device *xe); +void xe_lrc_dump_default(struct drm_printer *p, + struct xe_gt *gt, + enum xe_engine_class); + #endif |