/**************************************************************************
- *
- * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
+ *
+ * Copyright 2006 VMware, Inc.
* All Rights Reserved.
- *
+ *
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
- *
+ *
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
- *
+ *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
+ *
**************************************************************************/
/* Provide additional functionality on top of bufmgr buffers:
* last moment.
*/
-#include "intel_context.h"
+#include <sys/ioctl.h>
+#include <errno.h>
+
+#include "main/hash.h"
+#include "brw_context.h"
#include "intel_regions.h"
#include "intel_blit.h"
-#include "bufmgr.h"
-#include "imports.h"
+#include "intel_buffer_objects.h"
+#include "intel_bufmgr.h"
+#include "intel_batchbuffer.h"
-/* XXX: Thread safety?
+#define FILE_DEBUG_FLAG DEBUG_REGION
+
+/* This should be set to the maximum backtrace size desired.
+ * Set it to 0 to disable backtrace debugging.
*/
-GLubyte *intel_region_map(struct intel_context *intel, struct intel_region *region)
+#define DEBUG_BACKTRACE_SIZE 0
+
+#if DEBUG_BACKTRACE_SIZE == 0
+/* Use the standard debug output */
+#define _DBG(...) DBG(__VA_ARGS__)
+#else
+/* Use backtracing debug output */
+#define _DBG(...) {debug_backtrace(); DBG(__VA_ARGS__);}
+
+/* Backtracing debug support */
+#include <execinfo.h>
+
+static void
+debug_backtrace(void)
{
- DBG("%s\n", __FUNCTION__);
- if (!region->map_refcount++) {
- region->map = bmMapBuffer(intel, region->buffer, 0);
- if (!region->map)
- region->map_refcount--;
+ void *trace[DEBUG_BACKTRACE_SIZE];
+ char **strings = NULL;
+ int traceSize;
+ register int i;
+
+ traceSize = backtrace(trace, DEBUG_BACKTRACE_SIZE);
+ strings = backtrace_symbols(trace, traceSize);
+ if (strings == NULL) {
+ DBG("no backtrace:");
+ return;
}
- return region->map;
-}
+ /* Spit out all the strings with a colon separator. Ignore
+ * the first, since we don't really care about the call
+ * to debug_backtrace() itself. Skip until the final "/" in
+ * the trace to avoid really long lines.
+ */
+ for (i = 1; i < traceSize; i++) {
+ char *p = strings[i], *slash = strings[i];
+ while (*p) {
+ if (*p++ == '/') {
+ slash = p;
+ }
+ }
-void intel_region_unmap(struct intel_context *intel,
- struct intel_region *region)
-{
- DBG("%s\n", __FUNCTION__);
- if (!--region->map_refcount) {
- bmUnmapBufferAUB(intel, region->buffer, 0, 0);
- region->map = NULL;
+ DBG("%s:", slash);
}
+
+ /* Free up the memory, and we're done */
+ free(strings);
}
-struct intel_region *intel_region_alloc( struct intel_context *intel,
- GLuint cpp,
- GLuint pitch,
- GLuint height )
+#endif
+
+static struct intel_region *
+intel_region_alloc_internal(struct intel_screen *screen,
+ GLuint cpp,
+ GLuint width, GLuint height, GLuint pitch,
+ uint32_t tiling, drm_intel_bo *buffer)
{
- struct intel_region *region = calloc(sizeof(*region), 1);
+ struct intel_region *region;
- DBG("%s %dx%dx%d == 0x%x bytes\n", __FUNCTION__,
- cpp, pitch, height, cpp*pitch*height);
+ region = calloc(sizeof(*region), 1);
+ if (region == NULL)
+ return region;
region->cpp = cpp;
+ region->width = width;
+ region->height = height;
region->pitch = pitch;
- region->height = height; /* needed? */
region->refcount = 1;
+ region->bo = buffer;
+ region->tiling = tiling;
- bmGenBuffers(intel, "tex", 1, ®ion->buffer, 6);
- bmBufferData(intel, region->buffer, pitch * cpp * height, NULL, 0);
-
+ _DBG("%s <-- %p\n", __FUNCTION__, region);
return region;
}
-void intel_region_reference( struct intel_region **dst,
- struct intel_region *src)
+struct intel_region *
+intel_region_alloc(struct intel_screen *screen,
+ uint32_t tiling,
+ GLuint cpp, GLuint width, GLuint height,
+ bool expect_accelerated_upload)
{
- src->refcount++;
- assert(*dst == NULL);
- *dst = src;
+ drm_intel_bo *buffer;
+ unsigned long flags = 0;
+ unsigned long aligned_pitch;
+ struct intel_region *region;
+
+ if (expect_accelerated_upload)
+ flags |= BO_ALLOC_FOR_RENDER;
+
+ buffer = drm_intel_bo_alloc_tiled(screen->bufmgr, "region",
+ width, height, cpp,
+ &tiling, &aligned_pitch, flags);
+ if (buffer == NULL)
+ return NULL;
+
+ region = intel_region_alloc_internal(screen, cpp, width, height,
+ aligned_pitch, tiling, buffer);
+ if (region == NULL) {
+ drm_intel_bo_unreference(buffer);
+ return NULL;
+ }
+
+ return region;
}
-void intel_region_release( struct intel_context *intel,
- struct intel_region **region )
+bool
+intel_region_flink(struct intel_region *region, uint32_t *name)
{
- if (!*region)
- return;
-
- DBG("%s %d\n", __FUNCTION__, (*region)->refcount-1);
-
- if (--(*region)->refcount == 0) {
- assert((*region)->map_refcount == 0);
- bmDeleteBuffers(intel, 1, &(*region)->buffer);
- free(*region);
+ if (region->name == 0) {
+ if (drm_intel_bo_flink(region->bo, ®ion->name))
+ return false;
}
- *region = NULL;
-}
+ *name = region->name;
-struct intel_region *intel_region_create_static( struct intel_context *intel,
- GLuint mem_type,
- GLuint offset,
- void *virtual,
- GLuint cpp,
- GLuint pitch,
- GLuint height,
- GLuint size,
- GLboolean tiled )
-{
- struct intel_region *region = calloc(sizeof(*region), 1);
- GLint pool;
-
- DBG("%s\n", __FUNCTION__);
+ return true;
+}
- region->cpp = cpp;
- region->pitch = pitch;
- region->height = height; /* needed? */
- region->refcount = 1;
- region->tiled = tiled;
+struct intel_region *
+intel_region_alloc_for_handle(struct intel_screen *screen,
+ GLuint cpp,
+ GLuint width, GLuint height, GLuint pitch,
+ GLuint handle, const char *name)
+{
+ struct intel_region *region;
+ drm_intel_bo *buffer;
+ int ret;
+ uint32_t bit_6_swizzle, tiling;
+
+ buffer = intel_bo_gem_create_from_name(screen->bufmgr, name, handle);
+ if (buffer == NULL)
+ return NULL;
+ ret = drm_intel_bo_get_tiling(buffer, &tiling, &bit_6_swizzle);
+ if (ret != 0) {
+ fprintf(stderr, "Couldn't get tiling of buffer %d (%s): %s\n",
+ handle, name, strerror(-ret));
+ drm_intel_bo_unreference(buffer);
+ return NULL;
+ }
- /* Recipe for creating a static buffer - create a static pool with
- * the right offset and size, generate a buffer and use a special
- * call to bind it to all of the memory in that pool.
- */
- pool = bmInitPool(intel, offset, virtual, size,
- (BM_MEM_AGP |
- BM_NO_UPLOAD |
- BM_NO_EVICT |
- BM_NO_MOVE));
- if (pool < 0) {
- _mesa_printf("bmInitPool failed for static region\n");
- exit(1);
+ region = intel_region_alloc_internal(screen, cpp,
+ width, height, pitch, tiling, buffer);
+ if (region == NULL) {
+ drm_intel_bo_unreference(buffer);
+ return NULL;
}
- region->buffer = bmGenBufferStatic(intel, pool);
+ region->name = handle;
return region;
}
+struct intel_region *
+intel_region_alloc_for_fd(struct intel_screen *screen,
+ GLuint cpp,
+ GLuint width, GLuint height, GLuint pitch,
+ GLuint size,
+ int fd, const char *name)
+{
+ struct intel_region *region;
+ drm_intel_bo *buffer;
+ int ret;
+ uint32_t bit_6_swizzle, tiling;
+
+ buffer = drm_intel_bo_gem_create_from_prime(screen->bufmgr, fd, size);
+ if (buffer == NULL)
+ return NULL;
+ ret = drm_intel_bo_get_tiling(buffer, &tiling, &bit_6_swizzle);
+ if (ret != 0) {
+ fprintf(stderr, "Couldn't get tiling of buffer (%s): %s\n",
+ name, strerror(-ret));
+ drm_intel_bo_unreference(buffer);
+ return NULL;
+ }
+ region = intel_region_alloc_internal(screen, cpp,
+ width, height, pitch, tiling, buffer);
+ if (region == NULL) {
+ drm_intel_bo_unreference(buffer);
+ return NULL;
+ }
+ return region;
+}
-void _mesa_copy_rect( GLubyte *dst,
- GLuint cpp,
- GLuint dst_pitch,
- GLuint dst_x,
- GLuint dst_y,
- GLuint width,
- GLuint height,
- const GLubyte *src,
- GLuint src_pitch,
- GLuint src_x,
- GLuint src_y )
+void
+intel_region_reference(struct intel_region **dst, struct intel_region *src)
{
- GLuint i;
-
- dst_pitch *= cpp;
- src_pitch *= cpp;
- dst += dst_x * cpp;
- src += src_x * cpp;
- dst += dst_y * dst_pitch;
- src += src_y * dst_pitch;
- width *= cpp;
-
- if (width == dst_pitch &&
- width == src_pitch)
- do_memcpy(dst, src, height * width);
- else {
- for (i = 0; i < height; i++) {
- do_memcpy(dst, src, width);
- dst += dst_pitch;
- src += src_pitch;
- }
+ _DBG("%s: %p(%d) -> %p(%d)\n", __FUNCTION__,
+ *dst, *dst ? (*dst)->refcount : 0, src, src ? src->refcount : 0);
+
+ if (src != *dst) {
+ if (*dst)
+ intel_region_release(dst);
+
+ if (src)
+ src->refcount++;
+ *dst = src;
}
}
-
-/* Upload data to a rectangular sub-region. Lots of choices how to do this:
- *
- * - memcpy by span to current destination
- * - upload data as new buffer and blit
- *
- * Currently always memcpy.
- */
-GLboolean intel_region_data(struct intel_context *intel,
- struct intel_region *dst,
- GLuint dst_offset,
- GLuint dstx, GLuint dsty,
- const void *src, GLuint src_pitch,
- GLuint srcx, GLuint srcy,
- GLuint width, GLuint height)
+void
+intel_region_release(struct intel_region **region_handle)
{
- DBG("%s\n", __FUNCTION__);
-
- if (width == dst->pitch &&
- width == src_pitch &&
- dst_offset == 0 &&
- height == dst->height &&
- srcx == 0 &&
- srcy == 0)
- {
- return (bmBufferDataAUB(intel,
- dst->buffer,
- dst->cpp * width * dst->height,
- src, 0, 0, 0) == 0);
+ struct intel_region *region = *region_handle;
+
+ if (region == NULL) {
+ _DBG("%s NULL\n", __FUNCTION__);
+ return;
}
- else {
- GLubyte *map = intel_region_map(intel, dst);
-
- if (map) {
- assert (dst_offset + dstx + width +
- (dsty + height - 1) * dst->pitch * dst->cpp <=
- dst->pitch * dst->cpp * dst->height);
-
- _mesa_copy_rect(map + dst_offset,
- dst->cpp,
- dst->pitch,
- dstx, dsty,
- width, height,
- src,
- src_pitch,
- srcx, srcy);
-
- intel_region_unmap(intel, dst);
- return GL_TRUE;
- }
- else
- return GL_FALSE;
+
+ _DBG("%s %p %d\n", __FUNCTION__, region, region->refcount - 1);
+
+ ASSERT(region->refcount > 0);
+ region->refcount--;
+
+ if (region->refcount == 0) {
+ drm_intel_bo_unreference(region->bo);
+
+ free(region);
}
+ *region_handle = NULL;
}
-
-/* Copy rectangular sub-regions. Need better logic about when to
- * push buffers into AGP - will currently do so whenever possible.
+
+/**
+ * This function computes masks that may be used to select the bits of the X
+ * and Y coordinates that indicate the offset within a tile. If the region is
+ * untiled, the masks are set to 0.
*/
-void intel_region_copy( struct intel_context *intel,
- struct intel_region *dst,
- GLuint dst_offset,
- GLuint dstx, GLuint dsty,
- struct intel_region *src,
- GLuint src_offset,
- GLuint srcx, GLuint srcy,
- GLuint width, GLuint height )
+void
+intel_region_get_tile_masks(struct intel_region *region,
+ uint32_t *mask_x, uint32_t *mask_y,
+ bool map_stencil_as_y_tiled)
{
- DBG("%s\n", __FUNCTION__);
-
- assert(src->cpp == dst->cpp);
-
- intelEmitCopyBlit(intel,
- dst->cpp,
- src->pitch, src->buffer, src_offset, src->tiled,
- dst->pitch, dst->buffer, dst_offset, dst->tiled,
- srcx, srcy,
- dstx, dsty,
- width, height,
- GL_COPY );
+ int cpp = region->cpp;
+ uint32_t tiling = region->tiling;
+
+ if (map_stencil_as_y_tiled)
+ tiling = I915_TILING_Y;
+
+ switch (tiling) {
+ default:
+ assert(false);
+ case I915_TILING_NONE:
+ *mask_x = *mask_y = 0;
+ break;
+ case I915_TILING_X:
+ *mask_x = 512 / cpp - 1;
+ *mask_y = 7;
+ break;
+ case I915_TILING_Y:
+ *mask_x = 128 / cpp - 1;
+ *mask_y = 31;
+ break;
+ }
}
-/* Fill a rectangular sub-region. Need better logic about when to
- * push buffers into AGP - will currently do so whenever possible.
+/**
+ * Compute the offset (in bytes) from the start of the region to the given x
+ * and y coordinate. For tiled regions, caller must ensure that x and y are
+ * multiples of the tile size.
*/
-void intel_region_fill( struct intel_context *intel,
- struct intel_region *dst,
- GLuint dst_offset,
- GLuint dstx, GLuint dsty,
- GLuint width, GLuint height,
- GLuint color )
+uint32_t
+intel_region_get_aligned_offset(struct intel_region *region, uint32_t x,
+ uint32_t y, bool map_stencil_as_y_tiled)
{
- DBG("%s\n", __FUNCTION__);
-
- intelEmitFillBlit(intel,
- dst->cpp,
- dst->pitch, dst->buffer, dst_offset, dst->tiled,
- dstx, dsty,
- width, height,
- color );
-}
+ int cpp = region->cpp;
+ uint32_t pitch = region->pitch;
+ uint32_t tiling = region->tiling;
+
+ if (map_stencil_as_y_tiled) {
+ tiling = I915_TILING_Y;
+
+ /* When mapping a W-tiled stencil buffer as Y-tiled, each 64-high W-tile
+ * gets transformed into a 32-high Y-tile. Accordingly, the pitch of
+ * the resulting region is twice the pitch of the original region, since
+ * each row in the Y-tiled view corresponds to two rows in the actual
+ * W-tiled surface. So we need to correct the pitch before computing
+ * the offsets.
+ */
+ pitch *= 2;
+ }
+ switch (tiling) {
+ default:
+ assert(false);
+ case I915_TILING_NONE:
+ return y * pitch + x * cpp;
+ case I915_TILING_X:
+ assert((x % (512 / cpp)) == 0);
+ assert((y % 8) == 0);
+ return y * pitch + x / (512 / cpp) * 4096;
+ case I915_TILING_Y:
+ assert((x % (128 / cpp)) == 0);
+ assert((y % 32) == 0);
+ return y * pitch + x / (128 / cpp) * 4096;
+ }
+}
projects / mesa.git / blobdiff