From: Ben G. <bg...@gm...> - 2009-01-15 03:12:04
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--- drivers/gpu/drm/i915/i915_gem_debugfs.c | 573 +++++++++++++++++++++++++++++++ 1 files changed, 573 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_debugfs.c b/drivers/gpu/drm/i915/i915_gem_debugfs.c index ccc6d5f..cc91461 100644 --- a/drivers/gpu/drm/i915/i915_gem_debugfs.c +++ b/drivers/gpu/drm/i915/i915_gem_debugfs.c @@ -176,6 +176,576 @@ static int i915_hws_info(struct seq_file *m, void *data) return 0; } +#define DRM_I915_RING_DEBUG 1 +#if DRM_I915_RING_DEBUG +static char *mi_cmds[0x40] = { + "MI_NOOP", /* 00 */ + "Reserved 01", + "MI_USER_INTERRUPT", + "MI_WAIT_FOR_EVENT", + + "MI_FLUSH", /* 04 */ + "MI_ARB_CHECK", + NULL, + "MI_REPORT_HEAD", + + NULL, /* 08 */ + NULL, + "MI_BATCH_BUFFER_END", + NULL, + + NULL, /* 0c */ + NULL, + NULL, + NULL, + + NULL, /* 10 */ + "MI_OVERLAY_FLIP", + "MI_LOAD_SCAN_LINES_INCL", + "MI_LOAD_SCAN_LINES_EXCL", + + "MI_DISPLAY_BUFFER_INFO", /* 14 */ + NULL, + NULL, + NULL, + + "MI_SET_CONTEXT", /* 18 */ + NULL, + NULL, + NULL, + + NULL, /* 1c */ + NULL, + NULL, + NULL, + + "MI_STORE_DATA_IMM", /* 20 */ + "MI_STORE_DATA_INDEX", + "MI_LOAD_REGISTER_IMM", + NULL, + + "MI_STORE_REGISTER_MEM", /* 24 */ + NULL, + NULL, + NULL, + + NULL, /* 28 */ + NULL, + NULL, + NULL, + + NULL, /* 2c */ + NULL, + NULL, + NULL, + + NULL, /* 30 */ + "MI_BATCH_BUFFER_START", + NULL, + NULL, + + NULL, /* 34 */ + NULL, + NULL, + NULL, + + NULL, /* 38 */ + NULL, + NULL, + NULL, + + NULL, /* 3c */ + NULL, + NULL, + NULL, +}; + +static char *_2d_cmds[0x80] = { + NULL, /* 00 */ + "XY_SETUP_BLT", + NULL, + "XY_SETUP_CLIP_BLT", + + NULL, /* 04 */ + NULL, + NULL, + NULL, + + NULL, /* 08 */ + NULL, + NULL, + NULL, + + NULL, /* 0c */ + NULL, + NULL, + NULL, + + NULL, /* 10 */ + "XY_SETUP_MONO_PATTERN_SL_BLT", + NULL, + NULL, + + NULL, /* 14 */ + NULL, + NULL, + NULL, + + NULL, /* 18 */ + NULL, + NULL, + NULL, + + NULL, /* 1c */ + NULL, + NULL, + NULL, + + NULL, /* 20 */ + NULL, + NULL, + NULL, + + "XY_PIXEL_BLT", /* 24 */ + "XY_SCANLINE_BLT", + "XY_TEXT_BLT", + NULL, + + NULL, /* 28 */ + NULL, + NULL, + NULL, + + NULL, /* 2c */ + NULL, + NULL, + NULL, + + NULL, /* 30 */ + "XY_TEXT_IMMEDIATE_BLT", + NULL, + NULL, + + NULL, /* 34 */ + NULL, + NULL, + NULL, + + NULL, /* 38 */ + NULL, + NULL, + NULL, + + NULL, /* 3c */ + NULL, + NULL, + NULL, + + "COLOR_BLT", /* 40 */ + NULL, + NULL, + "SRC_COPY_BLT", + + NULL, /* 44 */ + NULL, + NULL, + NULL, + + NULL, /* 48 */ + NULL, + NULL, + NULL, + + NULL, /* 4c */ + NULL, + NULL, + NULL, + + "XY_COLOR_BLT", /* 50 */ + "XY_PAT_BLT", + "XY_MONO_PAT_BLT", + "XY_SRC_COPY_BLT", + + "XY_MONO_SRC_COPY_BLT", /* 54 */ + "XY_FULL_BLT", + "XY_FULL_MONO_SRC_BLT", + "XY_FULL_MONO_PATTERN_BLT", + + "XY_FULL_MONO_PATTERN_MONO_SRC_BLT", /* 58 */ + "XY_MONO_PAT_FIXED_BLT", + NULL, + NULL, + + NULL, /* 5c */ + NULL, + NULL, + NULL, + + NULL, /* 60 */ + NULL, + NULL, + NULL, + + NULL, /* 64 */ + NULL, + NULL, + NULL, + + NULL, /* 68 */ + NULL, + NULL, + NULL, + + NULL, /* 6c */ + NULL, + NULL, + NULL, + + NULL, /* 70 */ + "XY_MONO_SRC_COPY_IMMEDIATE_BLT", + "XY_PAT_BLT_IMMEDIATE", + "XY_SRC_COPY_CHROMA_BLT", + + "XY_FULL_IMMEDIATE_PATTERN_BLT", /* 74 */ + "XY_FULL_MONO_SRC_IMMEDIATE_PATTERN_BLT", + "XY_PAT_CHROMA_BLT", + "XY_PAT_CHROMA_BLT_IMMEDIATE", + + NULL, /* 78 */ + NULL, + NULL, + NULL, + + NULL, /* 7c */ + NULL, + NULL, + NULL, +}; + +#define _3D_ONE_WORD 1 + +static struct { + char *name; + int flags; +} _3d_cmds[0x4][0x8][0x100] = { + { /* Pipeline Type 00 (Common) */ + { /* Opcode 0 */ + { "URB_FENCE", 0 }, /* 00 */ + { "CS_URB_STATE", 0 }, + { "CONSTANT_BUFFER", 0 }, + { "STATE_PREFETCH", 0 }, + }, + { /* Opcode 1 */ + { NULL, 0 }, /* 00 */ + { "STATE_BASE_ADDRESS", 0 }, + { "STATE_SIP", 0 }, + { NULL, 0 }, + + { "PIPELINE_SELECT", _3D_ONE_WORD }, /* 04 */ + }, + }, + { /* Pipeline Type 01 (Single DW) */ + { /* Opcode 0 */ + }, + { /* Opcode 1 */ + { NULL, 0 }, /* 00 */ + { NULL, 0 }, + { NULL, 0 }, + { NULL, 0 }, + + { "PIPELINE_SELECT", 0 }, /* 04 */ + { NULL, 0 }, + { NULL, 0 }, + { NULL, 0 }, + }, + }, + { /* Pipeline Type 02 (Media) */ + { /* Opcode 0 */ + { "MEDIA_STATE_POINTERS", 0 }, /* 00 */ + }, + { /* Opcode 1 */ + { "MEDIA_OBJECT", 0 }, /* 00 */ + { "MEDIA_OBJECT_EX", 0 }, + { "MEDIA_OBJECT_PTR", 0 }, + }, + }, + { /* Pipeline Type 03 (3D) */ + { /* Opcode 0 */ + { "3DSTATE_PIPELINED_POINTERS", 0 }, /* 00 */ + { "3DSTATE_BINDING_TABLE_POINTERS", 0 }, + { NULL, 0 }, + { NULL, 0 }, + + { NULL, 0 }, /* 04 */ + { "3DSTATE_URB", 0 }, + { NULL, 0 }, + { NULL, 0 }, + + { "3DSTATE_VERTEX_BUFFERS", 0 }, /* 08 */ + { "3DSTATE_VERTEX_ELEMENTS", 0 }, + { "3DSTATE_INDEX_BUFFER", 0 }, + { "3DSTATE_VF_STATISTICS", _3D_ONE_WORD }, + + { NULL, 0 }, /* 0c */ + { "3DSTATE_VIEWPORT_STATE_POINTERS", 0 }, + }, + { /* Opcode 1 */ + { "3DSTATE_DRAWING_RECTANGLE", 0 }, /* 00 */ + { "3DSTATE_CONSTANT_COLOR", 0 }, + { "3DSTATE_SAMPLER_PALETTE_LOAD0", 0 }, + { NULL, 0 }, + + { "3DSTATE_CHROMA_KEY", 0 }, /* 04 */ + { "3DSTATE_DEPTH_BUFFER", 0 }, + { "3DSTATE_POLY_STIPPLE_OFFSET", 0 }, + { "3DSTATE_POLY_STIPPLE_PATTERN", 0 }, + + { "3DSTATE_LINE_STIPPLE", 0 }, /* 08 */ + { "3DSTATE_GLOBAL_DEPTH_OFFSET_CLAMP", 0 }, + }, + { /* Opcode 2 */ + { "PIPE_CONTROL", 0 }, /* 00 */ + }, + { /* Opcode 3 */ + { "3DPRIMITIVE", 0 }, /* 00 */ + }, + }, +}; + +static int valid_command(uint32_t cmd) +{ + uint32_t type = (cmd >> 29) & 0x7; + uint32_t pipeline_type; + uint32_t opcode; + uint32_t subopcode; + uint32_t count = 0; + + switch (type) { + case 0: /* Memory Interface */ + opcode = (cmd >> 23) & 0x3f; + if (opcode < 0x10) + count = 1; + else + count = (cmd & 0x3f) + 2; + + if (opcode == 0x00 && cmd != 0x00000000) + return -1; + if (!mi_cmds[opcode]) + return -1; + break; + + case 1: + break; + + case 2: /* 2D */ + count = (cmd & 0x1f) + 2; + opcode = (cmd >> 22) & 0x7f; + if (!_2d_cmds[opcode]) + return -1; + break; + + case 3: /* 3D */ + pipeline_type = (cmd >> 27) & 0x3; + opcode = (cmd >> 24) & 0x7; + subopcode = (cmd >> 16) & 0xff; + if (_3d_cmds[pipeline_type][opcode][subopcode].flags & _3D_ONE_WORD) + count = 1; + else + count = (cmd & 0xff) + 2; + + if (pipeline_type <= 3) + return count; + if (!_3d_cmds[pipeline_type][opcode][subopcode].name) + return -1; + break; + + default: + return -1; + } + return count; +} + +static int dump_cmd(struct seq_file *m, uint32_t cmd, int count) +{ + uint32_t type = (cmd >> 29) & 0x7; + uint32_t opcode, subopcode; + uint32_t pipeline_type; + int ret = 1; + + seq_printf(m, "\t"); + switch (type) { + /* Memory Interface */ + case 0: + opcode = (cmd >> 23) & 0x3f; + if (mi_cmds[opcode]) + seq_printf(m, "%-40.40s %d\n", mi_cmds[opcode], count); + else + seq_printf(m, "Memory Interface Reserved\n"); + break; + + case 1: + break; + + /* 2D */ + case 2: + opcode = (cmd >> 22) & 0x7f; + if (_2d_cmds[opcode]) + seq_printf(m, "%-40.40s %d\n", _2d_cmds[opcode], count); + else + seq_printf(m, "2D Reserved\n"); + break; + + /* 3D */ + case 3: + pipeline_type = (cmd >> 27) & 0x3; + opcode = (cmd >> 24) & 0x7; + subopcode = (cmd >> 16) & 0xff; + if (_3d_cmds[pipeline_type][opcode][subopcode].name) { + seq_printf(m, "%-40.40s %d\n", + _3d_cmds[pipeline_type][opcode][subopcode].name, + count); + } else { + seq_printf(m, "3D/Media Reserved (pipe %d op %d sub %d)\n", + pipeline_type, opcode, subopcode); + } + break; + + default: + seq_printf(m, "Reserved\n"); + break; + } + return ret; +} + +static void dump_cmds (struct seq_file *m, + volatile unsigned char *virt, + uint32_t start, + uint32_t stop, + uint32_t mask, + uint32_t acthd) +{ + uint32_t ring = start; + uint32_t cmd = start; + uint32_t data; + uint32_t batch_start_mask = ((0x7 << 29) | + (0x3f << 23) | + (0x7ff << 12) | + (1 << 11) | + (1 << 7) | + (1 << 6) | + (0x3f << 0)); + uint32_t batch_start_cmd = ((0x0 << 29) | + (0x31 << 23) | + (0x00 << 12) | + (0 << 11) | + (1 << 7) | + (0 << 6) | + (0 << 0)); + int count; + volatile uint32_t *ptr; + + while (ring != stop) { + if (ring == acthd) + seq_printf(m, "****"); + + DRM_INFO("\t%08x: %08x", ring, *(volatile unsigned int*) (virt + ring)); + if (ring == cmd) { + ptr = (volatile uint32_t *) (virt + ring); + data = *ptr; + count = valid_command(data); + dump_cmd(m, data, count); + + /* check for MI_BATCH_BUFFER_END */ + if (data == (0x0a << 23)) + stop = (ring + 4) & mask; + + /* check for MI_BATCH_BUFFER_START */ + if ( (data & batch_start_mask) == batch_start_cmd) { + uint32_t batch = ptr[1] & ~3; + seq_printf(m, "\t%08x: %08x\n", (ring + 4) & mask, batch); + seq_printf(m, "Batch buffer at 0x%08x {\n", batch); + /* TODO: Implement batch buffer dumping + dump_cmds(m, acthd); + ring = (ring + (count -1)*4) & mask; + */ + seq_printf(m, "}\n"); + } + cmd = (cmd + count * 4) & mask; + } else + seq_printf(m, "\n"); + ring = (ring + 4) & mask; + } +} + +static int valid_chain(struct drm_device *dev, unsigned int ring, unsigned int end) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + unsigned int head, tail, mask; + volatile unsigned char *virt; + uint32_t data; + int count; + volatile uint32_t *ptr; + + head = dev_priv->ring.head & HEAD_ADDR; + tail = dev_priv->ring.tail & TAIL_ADDR; + mask = dev_priv->ring.tail_mask; + virt = dev_priv->ring.virtual_start; + + for (;;) { + ptr = (volatile uint32_t *) (virt + ring); + data = *ptr; + count = valid_command(data); + if (count < 0) + return 0; + while (count > 0 && ring != end) { + ring = (ring + 4) & mask; + count--; + } + if (ring == end) { + if (count == 0) + return 1; + else + return 0; + } + } +} + +static void dump_ring(struct seq_file *m, struct drm_device *dev, uint32_t acthd) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + unsigned int head, tail, mask, cmd; + volatile unsigned char *virt; + + head = dev_priv->ring.head & HEAD_ADDR; + tail = dev_priv->ring.tail & TAIL_ADDR; + mask = dev_priv->ring.tail_mask; + virt = dev_priv->ring.virtual_start; + seq_printf(m, "Ring at %p head 0x%x tail 0x%x count %d acthd 0x%x\n", + virt, head, tail, (((tail + mask + 1) - head) & mask) >> 2, acthd); + + for (cmd = (head - 256) & mask; + cmd != (head & mask); + cmd = (cmd + 4) & mask) { + if (valid_chain(dev, cmd, (head & mask))) + break; + } + + dump_cmds(m, virt, cmd, head, mask, acthd); + seq_printf(m, "Ring end\n"); +} + +static int i915_ring_buffer_info(struct seq_file *m, void *data) +{ + struct drm_minor *minor = (struct drm_minor *) m->private; + struct drm_device *dev = minor->dev; + drm_i915_private_t *dev_priv = dev->dev_private; + uint32_t acthd; + + acthd = I915_READ(ACTHD_I965); + dump_ring(m, dev, acthd); + return 0; +} +#endif /* DRM_I915_RING_DEBUG */ static struct drm_debugfs_list i915_gem_debugfs_list[] = { @@ -186,6 +756,9 @@ static struct drm_debugfs_list i915_gem_debugfs_list[] = { {"i915_gem_seqno", i915_gem_seqno_info, 0}, {"i915_gem_interrupt", i915_interrupt_info, 0}, {"i915_gem_hws", i915_hws_info, 0}, +#if DRM_I915_RING_DEBUG + {"i915_gem_ringbuf", i915_ring_buffer_info, 0}, +#endif }; #define I915_GEM_DEBUGFS_ENTRIES ARRAY_SIZE(i915_gem_debugfs_list) -- 1.6.0.6 |