[Intel-gfx] [PATCH v2 i-g-t] lib/chv: CHV media pipeline command sequence
Sean V Kelley
sean.v.kelley at intel.com
Tue Aug 5 22:53:49 CEST 2014
Enable gem_media_fill test for CHV platform. In addition to differences in
media IP blocks from Broadwell, the command sequence also differs for
programming the media pipeline, e.g., should not send a MEDIA_STATE_FLUSH
right before the MI_BATCH_BUFFER_END of batch buffers using MEDIA_OBJECT.
Uses explicit IS_BROADWELL / IS_CHERRYVIEW to distinguish in gen8 media
fill handling.
Signed-off-by: Sean V Kelley <sean.v.kelley at intel.com>
---
lib/Makefile.sources | 1 +
lib/intel_batchbuffer.c | 4 +-
lib/media_fill.h | 7 +
lib/media_fill_gen8lp.c | 370 ++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 381 insertions(+), 1 deletion(-)
create mode 100644 lib/media_fill_gen8lp.c
diff --git a/lib/Makefile.sources b/lib/Makefile.sources
index aa9a130..242d2e0 100644
--- a/lib/Makefile.sources
+++ b/lib/Makefile.sources
@@ -25,6 +25,7 @@ libintel_tools_la_SOURCES = \
media_fill.h \
media_fill_gen7.c \
media_fill_gen8.c \
+ media_fill_gen8lp.c \
gen7_media.h \
gen8_media.h \
rendercopy_i915.c \
diff --git a/lib/intel_batchbuffer.c b/lib/intel_batchbuffer.c
index e868922..2c253d5 100644
--- a/lib/intel_batchbuffer.c
+++ b/lib/intel_batchbuffer.c
@@ -460,10 +460,12 @@ igt_media_fillfunc_t igt_get_media_fillfunc(int devid)
{
igt_media_fillfunc_t fill = NULL;
- if (IS_GEN8(devid))
+ if (IS_BROADWELL(devid))
fill = gen8_media_fillfunc;
else if (IS_GEN7(devid))
fill = gen7_media_fillfunc;
+ else if (IS_CHERRYVIEW(devid))
+ fill = gen8lp_media_fillfunc;
return fill;
}
diff --git a/lib/media_fill.h b/lib/media_fill.h
index d417c75..ca35aeb 100644
--- a/lib/media_fill.h
+++ b/lib/media_fill.h
@@ -18,4 +18,11 @@ gen7_media_fillfunc(struct intel_batchbuffer *batch,
unsigned width, unsigned height,
uint8_t color);
+void
+gen8lp_media_fillfunc(struct intel_batchbuffer *batch,
+ struct igt_buf *dst,
+ unsigned x, unsigned y,
+ unsigned width, unsigned height,
+ uint8_t color);
+
#endif /* RENDE_MEDIA_FILL_H */
diff --git a/lib/media_fill_gen8lp.c b/lib/media_fill_gen8lp.c
new file mode 100644
index 0000000..74dc573
--- /dev/null
+++ b/lib/media_fill_gen8lp.c
@@ -0,0 +1,370 @@
+#include <intel_bufmgr.h>
+#include <i915_drm.h>
+
+#include "media_fill.h"
+#include "gen8_media.h"
+#include "intel_reg.h"
+#include "drmtest.h"
+
+#include <assert.h>
+
+
+static const uint32_t media_kernel[][4] = {
+ { 0x00400001, 0x20202288, 0x00000020, 0x00000000 },
+ { 0x00600001, 0x20800208, 0x008d0000, 0x00000000 },
+ { 0x00200001, 0x20800208, 0x00450040, 0x00000000 },
+ { 0x00000001, 0x20880608, 0x00000000, 0x000f000f },
+ { 0x00800001, 0x20a00208, 0x00000020, 0x00000000 },
+ { 0x00800001, 0x20e00208, 0x00000020, 0x00000000 },
+ { 0x00800001, 0x21200208, 0x00000020, 0x00000000 },
+ { 0x00800001, 0x21600208, 0x00000020, 0x00000000 },
+ { 0x0c800031, 0x24000a40, 0x0e000080, 0x120a8000 },
+ { 0x00600001, 0x2e000208, 0x008d0000, 0x00000000 },
+ { 0x07800031, 0x20000a40, 0x0e000e00, 0x82000010 },
+};
+
+static uint32_t
+batch_used(struct intel_batchbuffer *batch)
+{
+ return batch->ptr - batch->buffer;
+}
+
+static uint32_t
+batch_align(struct intel_batchbuffer *batch, uint32_t align)
+{
+ uint32_t offset = batch_used(batch);
+ offset = ALIGN(offset, align);
+ batch->ptr = batch->buffer + offset;
+ return offset;
+}
+
+static void *
+batch_alloc(struct intel_batchbuffer *batch, uint32_t size, uint32_t align)
+{
+ uint32_t offset = batch_align(batch, align);
+ batch->ptr += size;
+ return memset(batch->buffer + offset, 0, size);
+}
+
+static uint32_t
+batch_offset(struct intel_batchbuffer *batch, void *ptr)
+{
+ return (uint8_t *)ptr - batch->buffer;
+}
+
+static uint32_t
+batch_copy(struct intel_batchbuffer *batch, const void *ptr, uint32_t size, uint32_t align)
+{
+ return batch_offset(batch, memcpy(batch_alloc(batch, size, align), ptr, size));
+}
+
+static void
+gen8_render_flush(struct intel_batchbuffer *batch, uint32_t batch_end)
+{
+ int ret;
+
+ ret = drm_intel_bo_subdata(batch->bo, 0, 4096, batch->buffer);
+ if (ret == 0)
+ ret = drm_intel_bo_mrb_exec(batch->bo, batch_end,
+ NULL, 0, 0, 0);
+ assert(ret == 0);
+}
+
+static uint32_t
+gen8_fill_curbe_buffer_data(struct intel_batchbuffer *batch,
+ uint8_t color)
+{
+ uint8_t *curbe_buffer;
+ uint32_t offset;
+
+ curbe_buffer = batch_alloc(batch, sizeof(uint32_t) * 8, 64);
+ offset = batch_offset(batch, curbe_buffer);
+ *curbe_buffer = color;
+
+ return offset;
+}
+
+static uint32_t
+gen8_fill_surface_state(struct intel_batchbuffer *batch,
+ struct igt_buf *buf,
+ uint32_t format,
+ int is_dst)
+{
+ struct gen8_surface_state *ss;
+ uint32_t write_domain, read_domain, offset;
+ int ret;
+
+ if (is_dst) {
+ write_domain = read_domain = I915_GEM_DOMAIN_RENDER;
+ } else {
+ write_domain = 0;
+ read_domain = I915_GEM_DOMAIN_SAMPLER;
+ }
+
+ ss = batch_alloc(batch, sizeof(*ss), 64);
+ offset = batch_offset(batch, ss);
+
+ ss->ss0.surface_type = GEN8_SURFACE_2D;
+ ss->ss0.surface_format = format;
+ ss->ss0.render_cache_read_write = 1;
+ ss->ss0.vertical_alignment = 1; /* align 4 */
+ ss->ss0.horizontal_alignment = 1; /* align 4 */
+
+ if (buf->tiling == I915_TILING_X)
+ ss->ss0.tiled_mode = 2;
+ else if (buf->tiling == I915_TILING_Y)
+ ss->ss0.tiled_mode = 3;
+
+ ss->ss8.base_addr = buf->bo->offset;
+
+ ret = drm_intel_bo_emit_reloc(batch->bo,
+ batch_offset(batch, ss) + 8 * 4,
+ buf->bo, 0,
+ read_domain, write_domain);
+ assert(ret == 0);
+
+ ss->ss2.height = igt_buf_height(buf) - 1;
+ ss->ss2.width = igt_buf_width(buf) - 1;
+ ss->ss3.pitch = buf->stride - 1;
+
+ ss->ss7.shader_chanel_select_r = 4;
+ ss->ss7.shader_chanel_select_g = 5;
+ ss->ss7.shader_chanel_select_b = 6;
+ ss->ss7.shader_chanel_select_a = 7;
+
+ return offset;
+}
+
+static uint32_t
+gen8_fill_binding_table(struct intel_batchbuffer *batch,
+ struct igt_buf *dst)
+{
+ uint32_t *binding_table, offset;
+
+ binding_table = batch_alloc(batch, 32, 64);
+ offset = batch_offset(batch, binding_table);
+
+ binding_table[0] = gen8_fill_surface_state(batch, dst, GEN8_SURFACEFORMAT_R8_UNORM, 1);
+
+ return offset;
+}
+
+static uint32_t
+gen8_fill_media_kernel(struct intel_batchbuffer *batch,
+ const uint32_t kernel[][4],
+ size_t size)
+{
+ uint32_t offset;
+
+ offset = batch_copy(batch, kernel, size, 64);
+
+ return offset;
+}
+
+static uint32_t
+gen8_fill_interface_descriptor(struct intel_batchbuffer *batch, struct igt_buf *dst)
+{
+ struct gen8_interface_descriptor_data *idd;
+ uint32_t offset;
+ uint32_t binding_table_offset, kernel_offset;
+
+ binding_table_offset = gen8_fill_binding_table(batch, dst);
+ kernel_offset = gen8_fill_media_kernel(batch, media_kernel, sizeof(media_kernel));
+
+ idd = batch_alloc(batch, sizeof(*idd), 64);
+ offset = batch_offset(batch, idd);
+
+ idd->desc0.kernel_start_pointer = (kernel_offset >> 6);
+
+ idd->desc2.single_program_flow = 1;
+ idd->desc2.floating_point_mode = GEN8_FLOATING_POINT_IEEE_754;
+
+ idd->desc3.sampler_count = 0; /* 0 samplers used */
+ idd->desc3.sampler_state_pointer = 0;
+
+ idd->desc4.binding_table_entry_count = 0;
+ idd->desc4.binding_table_pointer = (binding_table_offset >> 5);
+
+ idd->desc5.constant_urb_entry_read_offset = 0;
+ idd->desc5.constant_urb_entry_read_length = 1; /* grf 1 */
+
+ return offset;
+}
+
+static void
+gen8_emit_state_base_address(struct intel_batchbuffer *batch)
+{
+ OUT_BATCH(GEN8_STATE_BASE_ADDRESS | (16 - 2));
+
+ /* general */
+ OUT_BATCH(0 | BASE_ADDRESS_MODIFY);
+ OUT_BATCH(0);
+
+ /* stateless data port */
+ OUT_BATCH(0 | BASE_ADDRESS_MODIFY);
+
+ /* surface */
+ OUT_RELOC(batch->bo, I915_GEM_DOMAIN_SAMPLER, 0, BASE_ADDRESS_MODIFY);
+ OUT_BATCH(0);
+
+ /* dynamic */
+ OUT_RELOC(batch->bo, I915_GEM_DOMAIN_RENDER | I915_GEM_DOMAIN_INSTRUCTION,
+ 0, BASE_ADDRESS_MODIFY);
+ OUT_BATCH(0);
+
+ /* indirect */
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+
+ /* instruction */
+ OUT_RELOC(batch->bo, I915_GEM_DOMAIN_INSTRUCTION, 0, BASE_ADDRESS_MODIFY);
+ OUT_BATCH(0);
+
+ /* general state buffer size */
+ OUT_BATCH(0xfffff000 | 1);
+ /* dynamic state buffer size */
+ OUT_BATCH(1 << 12 | 1);
+ /* indirect object buffer size */
+ OUT_BATCH(0xfffff000 | 1);
+ /* intruction buffer size, must set modify enable bit, otherwise it may result in GPU hang */
+ OUT_BATCH(1 << 12 | 1);
+}
+
+static void
+gen8_emit_vfe_state(struct intel_batchbuffer *batch)
+{
+ OUT_BATCH(GEN8_MEDIA_VFE_STATE | (9 - 2));
+
+ /* scratch buffer */
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+
+ /* number of threads & urb entries */
+ OUT_BATCH(1 << 16 |
+ 2 << 8);
+
+ OUT_BATCH(0);
+
+ /* urb entry size & curbe size */
+ OUT_BATCH(2 << 16 |
+ 2);
+
+ /* scoreboard */
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+}
+
+static void
+gen8_emit_curbe_load(struct intel_batchbuffer *batch, uint32_t curbe_buffer)
+{
+ OUT_BATCH(GEN8_MEDIA_CURBE_LOAD | (4 - 2));
+ OUT_BATCH(0);
+ /* curbe total data length */
+ OUT_BATCH(64);
+ /* curbe data start address, is relative to the dynamics base address */
+ OUT_BATCH(curbe_buffer);
+}
+
+static void
+gen8_emit_interface_descriptor_load(struct intel_batchbuffer *batch, uint32_t interface_descriptor)
+{
+ OUT_BATCH(GEN8_MEDIA_INTERFACE_DESCRIPTOR_LOAD | (4 - 2));
+ OUT_BATCH(0);
+ /* interface descriptor data length */
+ OUT_BATCH(sizeof(struct gen8_interface_descriptor_data));
+ /* interface descriptor address, is relative to the dynamics base address */
+ OUT_BATCH(interface_descriptor);
+}
+
+static void
+gen8lp_emit_media_objects(struct intel_batchbuffer *batch,
+ unsigned x, unsigned y,
+ unsigned width, unsigned height)
+{
+ int i, j;
+
+ for (i = 0; i < width / 16; i++) {
+ for (j = 0; j < height / 16; j++) {
+ OUT_BATCH(GEN8_MEDIA_OBJECT | (8 - 2));
+
+ /* interface descriptor offset */
+ OUT_BATCH(0);
+
+ /* without indirect data */
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+
+ /* scoreboard */
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+
+ /* inline data (xoffset, yoffset) */
+ OUT_BATCH(x + i * 16);
+ OUT_BATCH(y + j * 16);
+ }
+ }
+}
+
+/*
+ * This sets up the media pipeline,
+ *
+ * +---------------+ <---- 4096
+ * | ^ |
+ * | | |
+ * | various |
+ * | state |
+ * | | |
+ * |_______|_______| <---- 2048 + ?
+ * | ^ |
+ * | | |
+ * | batch |
+ * | commands |
+ * | | |
+ * | | |
+ * +---------------+ <---- 0 + ?
+ *
+ */
+
+#define BATCH_STATE_SPLIT 2048
+
+void
+gen8lp_media_fillfunc(struct intel_batchbuffer *batch,
+ struct igt_buf *dst,
+ unsigned x, unsigned y,
+ unsigned width, unsigned height,
+ uint8_t color)
+{
+ uint32_t curbe_buffer, interface_descriptor;
+ uint32_t batch_end;
+
+ intel_batchbuffer_flush(batch);
+
+ /* setup states */
+ batch->ptr = &batch->buffer[BATCH_STATE_SPLIT];
+
+ curbe_buffer = gen8_fill_curbe_buffer_data(batch, color);
+ interface_descriptor = gen8_fill_interface_descriptor(batch, dst);
+ assert(batch->ptr < &batch->buffer[4095]);
+
+ /* media pipeline */
+ batch->ptr = batch->buffer;
+ OUT_BATCH(GEN8_PIPELINE_SELECT | PIPELINE_SELECT_MEDIA);
+ gen8_emit_state_base_address(batch);
+
+ gen8_emit_vfe_state(batch);
+
+ gen8_emit_curbe_load(batch, curbe_buffer);
+
+ gen8_emit_interface_descriptor_load(batch, interface_descriptor);
+
+ gen8lp_emit_media_objects(batch, x, y, width, height);
+
+ OUT_BATCH(MI_BATCH_BUFFER_END);
+
+ batch_end = batch_align(batch, 8);
+ assert(batch_end < BATCH_STATE_SPLIT);
+
+ gen8_render_flush(batch, batch_end);
+ intel_batchbuffer_reset(batch);
+}
--
2.0.1
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