[igt-dev] [PATCH i-g-t 04/50] lib/intel_batchbuffer: Add allocator support in blitter fast copy
Zbigniew Kempczyński
zbigniew.kempczynski at intel.com
Thu Jul 22 08:31:54 UTC 2021
From: Bhanuprakash Modem <bhanuprakash.modem at intel.com>
For newer gens kernel will reject relocations by returning -EINVAL
so we should support allocator and acquire offsets for blit.
Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem at intel.com>
Cc: Zbigniew Kempczyński <zbigniew.kempczynski at intel.com>
Cc: Petri Latvala <petri.latvala at intel.com>
Cc: Ashutosh Dixit <ashutosh.dixit at intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
---
lib/igt_fb.c | 17 ++++++++++++++++-
lib/intel_batchbuffer.c | 38 +++++++++++++++++++++++++++++---------
lib/intel_batchbuffer.h | 6 +++++-
3 files changed, 50 insertions(+), 11 deletions(-)
diff --git a/lib/igt_fb.c b/lib/igt_fb.c
index 75ab217b8..1bb32cd8a 100644
--- a/lib/igt_fb.c
+++ b/lib/igt_fb.c
@@ -2417,6 +2417,8 @@ static void blitcopy(const struct igt_fb *dst_fb,
const struct igt_fb *src_fb)
{
uint32_t src_tiling, dst_tiling;
+ uint32_t ctx = 0;
+ uint64_t ahnd = 0;
igt_assert_eq(dst_fb->fd, src_fb->fd);
igt_assert_eq(dst_fb->num_planes, src_fb->num_planes);
@@ -2424,6 +2426,12 @@ static void blitcopy(const struct igt_fb *dst_fb,
src_tiling = igt_fb_mod_to_tiling(src_fb->modifier);
dst_tiling = igt_fb_mod_to_tiling(dst_fb->modifier);
+ if (!gem_has_relocations(dst_fb->fd)) {
+ igt_require(gem_has_contexts(dst_fb->fd));
+ ctx = gem_context_create(dst_fb->fd);
+ ahnd = get_reloc_ahnd(dst_fb->fd, ctx);
+ }
+
for (int i = 0; i < dst_fb->num_planes; i++) {
igt_assert_eq(dst_fb->plane_bpp[i], src_fb->plane_bpp[i]);
igt_assert_eq(dst_fb->plane_width[i], src_fb->plane_width[i]);
@@ -2435,11 +2443,13 @@ static void blitcopy(const struct igt_fb *dst_fb,
*/
if (fast_blit_ok(src_fb) && fast_blit_ok(dst_fb)) {
igt_blitter_fast_copy__raw(dst_fb->fd,
+ ahnd, ctx,
src_fb->gem_handle,
src_fb->offsets[i],
src_fb->strides[i],
src_tiling,
0, 0, /* src_x, src_y */
+ src_fb->size,
dst_fb->plane_width[i],
dst_fb->plane_height[i],
dst_fb->plane_bpp[i],
@@ -2447,7 +2457,8 @@ static void blitcopy(const struct igt_fb *dst_fb,
dst_fb->offsets[i],
dst_fb->strides[i],
dst_tiling,
- 0, 0 /* dst_x, dst_y */);
+ 0, 0 /* dst_x, dst_y */,
+ dst_fb->size);
} else {
igt_blitter_src_copy(dst_fb->fd,
src_fb->gem_handle,
@@ -2465,6 +2476,10 @@ static void blitcopy(const struct igt_fb *dst_fb,
0, 0 /* dst_x, dst_y */);
}
}
+
+ if (ctx)
+ gem_context_destroy(dst_fb->fd, ctx);
+ put_ahnd(ahnd);
}
static void free_linear_mapping(struct fb_blit_upload *blit)
diff --git a/lib/intel_batchbuffer.c b/lib/intel_batchbuffer.c
index 2b8b903e2..563b03f64 100644
--- a/lib/intel_batchbuffer.c
+++ b/lib/intel_batchbuffer.c
@@ -703,12 +703,13 @@ fill_object(struct drm_i915_gem_exec_object2 *obj, uint32_t gem_handle,
static void exec_blit(int fd,
struct drm_i915_gem_exec_object2 *objs, uint32_t count,
- unsigned int gen)
+ unsigned int gen, uint32_t ctx)
{
struct drm_i915_gem_execbuffer2 exec = {
.buffers_ptr = to_user_pointer(objs),
.buffer_count = count,
.flags = gen >= 6 ? I915_EXEC_BLT : 0,
+ .rsvd1 = ctx,
};
gem_execbuf(fd, &exec);
@@ -893,7 +894,7 @@ void igt_blitter_src_copy(int fd,
objs[0].flags |= EXEC_OBJECT_NEEDS_FENCE;
objs[1].flags |= EXEC_OBJECT_NEEDS_FENCE;
- exec_blit(fd, objs, 3, gen);
+ exec_blit(fd, objs, 3, gen, 0);
gem_close(fd, batch_handle);
}
@@ -901,6 +902,8 @@ void igt_blitter_src_copy(int fd,
/**
* igt_blitter_fast_copy__raw:
* @fd: file descriptor of the i915 driver
+ * @ahnd: handle to an allocator
+ * @ctx: context within which execute copy blit
* @src_handle: GEM handle of the source buffer
* @src_delta: offset into the source GEM bo, in bytes
* @src_stride: Stride (in bytes) of the source buffer
@@ -920,12 +923,15 @@ void igt_blitter_src_copy(int fd,
* Like igt_blitter_fast_copy(), but talking to the kernel directly.
*/
void igt_blitter_fast_copy__raw(int fd,
+ uint64_t ahnd,
+ uint32_t ctx,
/* src */
uint32_t src_handle,
unsigned int src_delta,
unsigned int src_stride,
unsigned int src_tiling,
unsigned int src_x, unsigned src_y,
+ uint64_t src_size,
/* size */
unsigned int width, unsigned int height,
@@ -938,7 +944,8 @@ void igt_blitter_fast_copy__raw(int fd,
unsigned dst_delta,
unsigned int dst_stride,
unsigned int dst_tiling,
- unsigned int dst_x, unsigned dst_y)
+ unsigned int dst_x, unsigned dst_y,
+ uint64_t dst_size)
{
uint32_t batch[12];
struct drm_i915_gem_exec_object2 objs[3];
@@ -946,8 +953,11 @@ void igt_blitter_fast_copy__raw(int fd,
uint32_t batch_handle;
uint32_t dword0, dword1;
uint32_t src_pitch, dst_pitch;
+ uint64_t batch_offset, src_offset, dst_offset;
int i = 0;
+ src_offset = get_offset(ahnd, src_handle, src_size, 0);
+ dst_offset = get_offset(ahnd, dst_handle, dst_size, 0);
src_pitch = fast_copy_pitch(src_stride, src_tiling);
dst_pitch = fast_copy_pitch(dst_stride, dst_tiling);
dword0 = fast_copy_dword0(src_tiling, dst_tiling);
@@ -964,18 +974,19 @@ void igt_blitter_fast_copy__raw(int fd,
batch[i++] = dword1 | dst_pitch;
batch[i++] = (dst_y << 16) | dst_x; /* dst x1,y1 */
batch[i++] = ((dst_y + height) << 16) | (dst_x + width); /* dst x2,y2 */
- batch[i++] = dst_delta; /* dst address lower bits */
- batch[i++] = 0; /* dst address upper bits */
+ batch[i++] = dst_offset + dst_delta; /* dst address lower bits */
+ batch[i++] = (dst_offset + dst_delta) >> 32; /* dst address upper bits */
batch[i++] = (src_y << 16) | src_x; /* src x1,y1 */
batch[i++] = src_pitch;
- batch[i++] = src_delta; /* src address lower bits */
- batch[i++] = 0; /* src address upper bits */
+ batch[i++] = src_offset + src_delta; /* src address lower bits */
+ batch[i++] = (src_offset + src_delta) >> 32; /* src address upper bits */
batch[i++] = MI_BATCH_BUFFER_END;
batch[i++] = MI_NOOP;
igt_assert(i == ARRAY_SIZE(batch));
batch_handle = gem_create(fd, 4096);
+ batch_offset = get_offset(ahnd, batch_handle, 4096, 0);
gem_write(fd, batch_handle, 0, batch, sizeof(batch));
fill_relocation(&relocs[0], dst_handle, dst_delta, 4,
@@ -984,9 +995,18 @@ void igt_blitter_fast_copy__raw(int fd,
fill_object(&objs[0], dst_handle, NULL, 0);
fill_object(&objs[1], src_handle, NULL, 0);
- fill_object(&objs[2], batch_handle, relocs, 2);
+ fill_object(&objs[2], batch_handle, relocs, !ahnd ? 2 : 0);
+
+ if (ahnd) {
+ objs[0].flags |= EXEC_OBJECT_PINNED | EXEC_OBJECT_WRITE;
+ objs[1].flags |= EXEC_OBJECT_PINNED;
+ objs[2].flags |= EXEC_OBJECT_PINNED;
+ objs[0].offset = dst_offset;
+ objs[1].offset = src_offset;
+ objs[2].offset = batch_offset;
+ }
- exec_blit(fd, objs, 3, intel_gen(intel_get_drm_devid(fd)));
+ exec_blit(fd, objs, 3, intel_gen(intel_get_drm_devid(fd)), ctx);
gem_close(fd, batch_handle);
}
diff --git a/lib/intel_batchbuffer.h b/lib/intel_batchbuffer.h
index bd417e998..74c21c40e 100644
--- a/lib/intel_batchbuffer.h
+++ b/lib/intel_batchbuffer.h
@@ -300,12 +300,15 @@ void igt_blitter_fast_copy(struct intel_batchbuffer *batch,
unsigned dst_x, unsigned dst_y);
void igt_blitter_fast_copy__raw(int fd,
+ uint64_t ahnd,
+ uint32_t ctx,
/* src */
uint32_t src_handle,
unsigned int src_delta,
unsigned int src_stride,
unsigned int src_tiling,
unsigned int src_x, unsigned src_y,
+ uint64_t src_size,
/* size */
unsigned int width, unsigned int height,
@@ -318,7 +321,8 @@ void igt_blitter_fast_copy__raw(int fd,
unsigned int dst_delta,
unsigned int dst_stride,
unsigned int dst_tiling,
- unsigned int dst_x, unsigned dst_y);
+ unsigned int dst_x, unsigned dst_y,
+ uint64_t dst_size);
/**
* igt_render_copyfunc_t:
--
2.26.0
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