[Mesa-dev] [PATCH 2/6] gallium: add interface and state tracker support for GL_AMD_pinned_memory
Marek Olšák
maraeo at gmail.com
Wed Feb 11 12:18:12 PST 2015
From: Marek Olšák <marek.olsak at amd.com>
---
src/gallium/docs/source/screen.rst | 5 +++++
src/gallium/drivers/i915/i915_screen.c | 1 +
src/gallium/drivers/ilo/ilo_screen.c | 1 +
src/gallium/drivers/llvmpipe/lp_screen.c | 1 +
src/gallium/drivers/nouveau/nv30/nv30_screen.c | 1 +
src/gallium/drivers/nouveau/nv50/nv50_screen.c | 1 +
src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 1 +
src/gallium/drivers/r300/r300_screen.c | 1 +
src/gallium/drivers/softpipe/sp_screen.c | 1 +
src/gallium/drivers/svga/svga_screen.c | 1 +
src/gallium/drivers/vc4/vc4_screen.c | 1 +
src/gallium/include/pipe/p_defines.h | 1 +
src/gallium/include/pipe/p_screen.h | 8 ++++++++
src/mesa/state_tracker/st_cb_bufferobjects.c | 18 +++++++++++++-----
src/mesa/state_tracker/st_extensions.c | 1 +
15 files changed, 38 insertions(+), 5 deletions(-)
diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
index aa519d2..313980a 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -246,6 +246,11 @@ The integer capabilities:
* ``PIPE_CAP_MULTISAMPLE_Z_RESOLVE``: Whether the driver supports blitting
a multisampled depth buffer into a single-sampled texture (or depth buffer).
Only the first sampled should be copied.
+* ``PIPE_CAP_RESOURCE_FROM_USER_MEMORY``: Whether the driver can create
+ a pipe_resource where an already-existing piece of (malloc'd) user memory
+ is used as its backing storage. In other words, whether the driver can map
+ existing user memory into the device address space for direct device access.
+ The create function is pipe_screen::resource_from_user_memory.
.. _pipe_capf:
diff --git a/src/gallium/drivers/i915/i915_screen.c b/src/gallium/drivers/i915/i915_screen.c
index d2199a2..6c35fc8 100644
--- a/src/gallium/drivers/i915/i915_screen.c
+++ b/src/gallium/drivers/i915/i915_screen.c
@@ -231,6 +231,7 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
case PIPE_CAP_VERTEXID_NOBASE:
case PIPE_CAP_POLYGON_OFFSET_CLAMP:
case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
+ case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
return 0;
case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
diff --git a/src/gallium/drivers/ilo/ilo_screen.c b/src/gallium/drivers/ilo/ilo_screen.c
index 6e9e723..0182b7f 100644
--- a/src/gallium/drivers/ilo/ilo_screen.c
+++ b/src/gallium/drivers/ilo/ilo_screen.c
@@ -473,6 +473,7 @@ ilo_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
case PIPE_CAP_SAMPLER_VIEW_TARGET:
case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
+ case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
return 0;
case PIPE_CAP_VENDOR_ID:
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
index 31c65df..8b6e66e 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -288,6 +288,7 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_POLYGON_OFFSET_CLAMP:
return 1;
case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
+ case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
return 0;
}
/* should only get here on unhandled cases */
diff --git a/src/gallium/drivers/nouveau/nv30/nv30_screen.c b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
index 9c183f2..247ecbb 100644
--- a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
+++ b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
@@ -160,6 +160,7 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_VERTEXID_NOBASE:
case PIPE_CAP_POLYGON_OFFSET_CLAMP:
case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
+ case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
return 0;
case PIPE_CAP_VENDOR_ID:
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
index b79c237..729fc04 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
@@ -208,6 +208,7 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_DRAW_INDIRECT:
case PIPE_CAP_VERTEXID_NOBASE:
case PIPE_CAP_MULTISAMPLE_Z_RESOLVE: /* potentially supported on some hw */
+ case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
return 0;
case PIPE_CAP_VENDOR_ID:
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index 4e53ca4..956905c 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -192,6 +192,7 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_FAKE_SW_MSAA:
case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
case PIPE_CAP_VERTEXID_NOBASE:
+ case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
return 0;
case PIPE_CAP_VENDOR_ID:
diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c
index e6b826d..77b5dbf 100644
--- a/src/gallium/drivers/r300/r300_screen.c
+++ b/src/gallium/drivers/r300/r300_screen.c
@@ -184,6 +184,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
case PIPE_CAP_VERTEXID_NOBASE:
case PIPE_CAP_POLYGON_OFFSET_CLAMP:
case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
+ case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
return 0;
/* SWTCL-only features. */
diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index 365fc0a..bae1367 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -236,6 +236,7 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_POLYGON_OFFSET_CLAMP:
return 0;
case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
+ case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
return 0;
}
/* should only get here on unhandled cases */
diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c
index 0156001..4f2969c 100644
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -307,6 +307,7 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
/* XXX: Query the host ? */
return 1;
case PIPE_CAP_UMA:
+ case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
return 0;
}
diff --git a/src/gallium/drivers/vc4/vc4_screen.c b/src/gallium/drivers/vc4/vc4_screen.c
index 29637fb..1fe25c9 100644
--- a/src/gallium/drivers/vc4/vc4_screen.c
+++ b/src/gallium/drivers/vc4/vc4_screen.c
@@ -172,6 +172,7 @@ vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_VERTEXID_NOBASE:
case PIPE_CAP_POLYGON_OFFSET_CLAMP:
case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
+ case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
return 0;
/* Stream output. */
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 192af63..bdf527c 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -575,6 +575,7 @@ enum pipe_cap {
PIPE_CAP_VERTEXID_NOBASE = 112,
PIPE_CAP_POLYGON_OFFSET_CLAMP = 113,
PIPE_CAP_MULTISAMPLE_Z_RESOLVE = 114,
+ PIPE_CAP_RESOURCE_FROM_USER_MEMORY = 115,
};
#define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)
diff --git a/src/gallium/include/pipe/p_screen.h b/src/gallium/include/pipe/p_screen.h
index cf958d2..6b151a2 100644
--- a/src/gallium/include/pipe/p_screen.h
+++ b/src/gallium/include/pipe/p_screen.h
@@ -164,6 +164,14 @@ struct pipe_screen {
struct winsys_handle *handle);
/**
+ * Create a resource from user memory. This maps the user memory into
+ * the device address space.
+ */
+ struct pipe_resource * (*resource_from_user_memory)(struct pipe_screen *,
+ const struct pipe_resource *templat,
+ void *user_memory);
+
+ /**
* Get a winsys_handle from a texture. Some platforms/winsys requires
* that the texture is created with a special usage flag like
* DISPLAYTARGET or PRIMARY.
diff --git a/src/mesa/state_tracker/st_cb_bufferobjects.c b/src/mesa/state_tracker/st_cb_bufferobjects.c
index 90f786c..f24805c 100644
--- a/src/mesa/state_tracker/st_cb_bufferobjects.c
+++ b/src/mesa/state_tracker/st_cb_bufferobjects.c
@@ -186,7 +186,8 @@ st_bufferobj_data(struct gl_context *ctx,
struct st_buffer_object *st_obj = st_buffer_object(obj);
unsigned bind, pipe_usage, pipe_flags = 0;
- if (size && data && st_obj->buffer &&
+ if (target != GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD &&
+ size && data && st_obj->buffer &&
st_obj->Base.Size == size &&
st_obj->Base.Usage == usage &&
st_obj->Base.StorageFlags == storageFlags) {
@@ -287,6 +288,7 @@ st_bufferobj_data(struct gl_context *ctx,
}
if (size != 0) {
+ struct pipe_screen *screen = pipe->screen;
struct pipe_resource buffer;
memset(&buffer, 0, sizeof buffer);
@@ -300,16 +302,22 @@ st_bufferobj_data(struct gl_context *ctx,
buffer.depth0 = 1;
buffer.array_size = 1;
- st_obj->buffer = pipe->screen->resource_create(pipe->screen, &buffer);
+ if (target == GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD) {
+ st_obj->buffer =
+ screen->resource_from_user_memory(screen, &buffer, (void*)data);
+ }
+ else {
+ st_obj->buffer = screen->resource_create(screen, &buffer);
+
+ if (st_obj->buffer && data)
+ pipe_buffer_write(pipe, st_obj->buffer, 0, size, data);
+ }
if (!st_obj->buffer) {
/* out of memory */
st_obj->Base.Size = 0;
return GL_FALSE;
}
-
- if (data)
- pipe_buffer_write(pipe, st_obj->buffer, 0, size, data);
}
/* BufferData may change an array or uniform buffer, need to update it */
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 240308a..6278711 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -449,6 +449,7 @@ void st_init_extensions(struct pipe_screen *screen,
{ o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
{ o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
+ { o(AMD_pinned_memory), PIPE_CAP_RESOURCE_FROM_USER_MEMORY },
{ o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
{ o(ATI_separate_stencil), PIPE_CAP_TWO_SIDED_STENCIL },
{ o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
--
2.1.0
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