/**************************************************************************
*
- * 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
* 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.
* last moment.
*/
+#include <sys/ioctl.h>
+#include <errno.h>
+
+#include "main/hash.h"
#include "intel_context.h"
#include "intel_regions.h"
#include "intel_blit.h"
#include "intel_buffer_objects.h"
-#include "dri_bufmgr.h"
-#include "intel_bufmgr_ttm.h"
+#include "intel_bufmgr.h"
#include "intel_batchbuffer.h"
#define FILE_DEBUG_FLAG DEBUG_REGION
-void
-intel_region_idle(intelScreenPrivate *intelScreen, struct intel_region *region)
+/* This should be set to the maximum backtrace size desired.
+ * Set it to 0 to disable backtrace debugging.
+ */
+#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__);
- /* XXX: Using this function is likely bogus -- it ought to only have been
- * used before a map, anyway, but leave this cheap implementation of it
- * for now.
- */
- if (region && region->buffer) {
- /* Mapping it for read will ensure that any acceleration to the region
- * would have landed already.
- */
- dri_bo_map(region->buffer, GL_TRUE);
- dri_bo_unmap(region->buffer);
+ 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;
}
-}
-/* XXX: Thread safety?
- */
-GLubyte *
-intel_region_map(intelScreenPrivate *intelScreen, struct intel_region *region)
-{
- DBG("%s\n", __FUNCTION__);
- if (!region->map_refcount++) {
- if (region->pbo)
- intel_region_cow(intelScreen, region);
+ /* 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;
+ }
+ }
- dri_bo_map(region->buffer, GL_TRUE);
- region->map = region->buffer->virtual;
+ DBG("%s:", slash);
}
- return region->map;
+ /* Free up the memory, and we're done */
+ free(strings);
}
-void
-intel_region_unmap(intelScreenPrivate *intelScreen, struct intel_region *region)
-{
- DBG("%s\n", __FUNCTION__);
- if (!--region->map_refcount) {
- dri_bo_unmap(region->buffer);
- region->map = NULL;
- }
-}
+#endif
-struct intel_region *
-intel_region_alloc(intelScreenPrivate *intelScreen,
- GLuint cpp, GLuint pitch, GLuint height)
+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\n", __FUNCTION__);
+ 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;
- region->buffer = dri_bo_alloc(intelScreen->bufmgr, "region",
- pitch * cpp * height, 64, DRM_BO_FLAG_MEM_TT);
+ _DBG("%s <-- %p\n", __func__, region);
return region;
}
-void
-intel_region_reference(struct intel_region **dst, struct intel_region *src)
-{
- assert(*dst == NULL);
- if (src) {
- src->refcount++;
- *dst = src;
- }
-}
-
-void
-intel_region_release(struct intel_region **region)
-{
- if (!*region)
- return;
-
- DBG("%s %d\n", __FUNCTION__, (*region)->refcount - 1);
-
- ASSERT((*region)->refcount > 0);
- (*region)->refcount--;
-
- if ((*region)->refcount == 0) {
- assert((*region)->map_refcount == 0);
-
- if ((*region)->pbo)
- (*region)->pbo->region = NULL;
- (*region)->pbo = NULL;
- dri_bo_unreference((*region)->buffer);
- free(*region);
- }
- *region = NULL;
-}
-
-
struct intel_region *
-intel_region_create_static(intelScreenPrivate *intelScreen,
- GLuint mem_type,
- unsigned int bo_handle,
- GLuint offset,
- void *virtual,
- GLuint cpp, GLuint pitch, GLuint height)
+intel_region_alloc(struct intel_screen *screen,
+ uint32_t tiling,
+ GLuint cpp, GLuint width, GLuint height,
+ bool expect_accelerated_upload)
{
- struct intel_region *region = calloc(sizeof(*region), 1);
- DBG("%s\n", __FUNCTION__);
-
- region->cpp = cpp;
- region->pitch = pitch;
- region->height = height; /* needed? */
- region->refcount = 1;
-
- if (intelScreen->ttm) {
- assert(bo_handle != -1);
- region->buffer = intel_ttm_bo_create_from_handle(intelScreen->bufmgr,
- "static region",
- bo_handle);
- } else {
- region->buffer = dri_bo_alloc_static(intelScreen->bufmgr,
- "static region",
- offset, pitch * cpp * height,
- virtual,
- DRM_BO_FLAG_MEM_TT);
+ 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_update_static(intelScreenPrivate *intelScreen,
- struct intel_region *region,
- GLuint mem_type,
- unsigned int bo_handle,
- GLuint offset,
- void *virtual,
- GLuint cpp, GLuint pitch, GLuint height)
+bool
+intel_region_flink(struct intel_region *region, uint32_t *name)
{
- DBG("%s\n", __FUNCTION__);
-
- region->cpp = cpp;
- region->pitch = pitch;
- region->height = height; /* needed? */
-
- /*
- * We use a "shared" buffer type to indicate buffers created and
- * shared by others.
- */
-
- dri_bo_unreference(region->buffer);
- if (intelScreen->ttm) {
- assert(bo_handle != -1);
- region->buffer = intel_ttm_bo_create_from_handle(intelScreen->bufmgr,
- "static region",
- bo_handle);
- } else {
- region->buffer = dri_bo_alloc_static(intelScreen->bufmgr,
- "static region",
- offset, pitch * cpp * height,
- virtual,
- DRM_BO_FLAG_MEM_TT);
+ if (region->name == 0) {
+ if (drm_intel_bo_flink(region->bo, ®ion->name))
+ return false;
}
-}
-
+ *name = region->name;
-/*
- * XXX Move this into core Mesa?
- */
-static 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)
-{
- 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)
- memcpy(dst, src, height * width);
- else {
- for (i = 0; i < height; i++) {
- memcpy(dst, src, width);
- dst += dst_pitch;
- src += src_pitch;
- }
- }
+ return true;
}
-
-/* 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.
- */
-void
-intel_region_data(intelScreenPrivate *intelScreen,
- 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)
+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_context *intel = intelScreenContext(intelScreen);
-
- DBG("%s\n", __FUNCTION__);
-
- if (intel == NULL)
- return;
-
- if (dst->pbo) {
- if (dstx == 0 &&
- dsty == 0 && width == dst->pitch && height == dst->height)
- intel_region_release_pbo(intelScreen, dst);
- else
- intel_region_cow(intelScreen, dst);
+ struct intel_region *region;
+ drm_intel_bo *buffer;
+ int ret;
+ uint32_t bit_6_swizzle, tiling;
+
+ buffer = drm_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;
}
+ region = intel_region_alloc_internal(screen, cpp,
+ width, height, pitch, tiling, buffer);
+ if (region == NULL) {
+ drm_intel_bo_unreference(buffer);
+ return NULL;
+ }
- LOCK_HARDWARE(intel);
-
- _mesa_copy_rect(intel_region_map(intelScreen, dst) + dst_offset,
- dst->cpp,
- dst->pitch,
- dstx, dsty, width, height, src, src_pitch, srcx, srcy);
-
- intel_region_unmap(intelScreen, dst);
-
- UNLOCK_HARDWARE(intel);
+ region->name = handle;
+ return region;
}
-/* Copy rectangular sub-regions. Need better logic about when to
- * push buffers into AGP - will currently do so whenever possible.
- */
-void
-intel_region_copy(intelScreenPrivate *intelScreen,
- 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)
+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_context *intel = intelScreenContext(intelScreen);
-
- DBG("%s\n", __FUNCTION__);
-
- if (intel == NULL)
- return;
-
- if (dst->pbo) {
- if (dstx == 0 &&
- dsty == 0 && width == dst->pitch && height == dst->height)
- intel_region_release_pbo(intelScreen, dst);
- else
- intel_region_cow(intelScreen, dst);
+ 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;
}
- assert(src->cpp == dst->cpp);
+ region = intel_region_alloc_internal(screen, cpp,
+ width, height, pitch, tiling, buffer);
+ if (region == NULL) {
+ drm_intel_bo_unreference(buffer);
+ return NULL;
+ }
- intelEmitCopyBlit(intel,
- dst->cpp,
- src->pitch, src->buffer, src_offset,
- dst->pitch, dst->buffer, dst_offset,
- srcx, srcy, dstx, dsty, width, height,
- GL_COPY);
+ return region;
}
-/* Fill a rectangular sub-region. Need better logic about when to
- * push buffers into AGP - will currently do so whenever possible.
- */
void
-intel_region_fill(intelScreenPrivate *intelScreen,
- struct intel_region *dst,
- GLuint dst_offset,
- GLuint dstx, GLuint dsty,
- GLuint width, GLuint height, GLuint color)
+intel_region_reference(struct intel_region **dst, struct intel_region *src)
{
- struct intel_context *intel = intelScreenContext(intelScreen);
-
- DBG("%s\n", __FUNCTION__);
+ _DBG("%s: %p(%d) -> %p(%d)\n", __func__,
+ *dst, *dst ? (*dst)->refcount : 0, src, src ? src->refcount : 0);
- if (intel == NULL)
- return;
+ if (src != *dst) {
+ if (*dst)
+ intel_region_release(dst);
- if (dst->pbo) {
- if (dstx == 0 &&
- dsty == 0 && width == dst->pitch && height == dst->height)
- intel_region_release_pbo(intelScreen, dst);
- else
- intel_region_cow(intelScreen, dst);
+ if (src)
+ src->refcount++;
+ *dst = src;
}
-
- intelEmitFillBlit(intel,
- dst->cpp,
- dst->pitch, dst->buffer, dst_offset,
- dstx, dsty, width, height, color);
}
-/* Attach to a pbo, discarding our data. Effectively zero-copy upload
- * the pbo's data.
- */
void
-intel_region_attach_pbo(intelScreenPrivate *intelScreen,
- struct intel_region *region,
- struct intel_buffer_object *pbo)
+intel_region_release(struct intel_region **region_handle)
{
- if (region->pbo == pbo)
- return;
+ struct intel_region *region = *region_handle;
- /* If there is already a pbo attached, break the cow tie now.
- * Don't call intel_region_release_pbo() as that would
- * unnecessarily allocate a new buffer we would have to immediately
- * discard.
- */
- if (region->pbo) {
- region->pbo->region = NULL;
- region->pbo = NULL;
+ if (region == NULL) {
+ _DBG("%s NULL\n", __func__);
+ return;
}
- if (region->buffer) {
- dri_bo_unreference(region->buffer);
- region->buffer = NULL;
- }
+ _DBG("%s %p %d\n", __func__, region, region->refcount - 1);
- region->pbo = pbo;
- region->pbo->region = region;
- dri_bo_reference(pbo->buffer);
- region->buffer = pbo->buffer;
-}
+ assert(region->refcount > 0);
+ region->refcount--;
+ if (region->refcount == 0) {
+ drm_intel_bo_unreference(region->bo);
-/* Break the COW tie to the pbo and allocate a new buffer.
- * The pbo gets to keep the data.
- */
-void
-intel_region_release_pbo(intelScreenPrivate *intelScreen,
- struct intel_region *region)
-{
- assert(region->buffer == region->pbo->buffer);
- region->pbo->region = NULL;
- region->pbo = NULL;
- dri_bo_unreference(region->buffer);
- region->buffer = NULL;
-
- region->buffer = dri_bo_alloc(intelScreen->bufmgr, "region",
- region->pitch * region->cpp * region->height,
- 64, DRM_BO_FLAG_MEM_TT);
+ free(region);
+ }
+ *region_handle = NULL;
}
-/* Break the COW tie to the pbo. Both the pbo and the region end up
- * with a copy of the data.
+/**
+ * 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_cow(intelScreenPrivate *intelScreen, struct intel_region *region)
+intel_region_get_tile_masks(struct intel_region *region,
+ uint32_t *mask_x, uint32_t *mask_y)
{
- struct intel_context *intel = intelScreenContext(intelScreen);
- struct intel_buffer_object *pbo = region->pbo;
-
- if (intel == NULL)
- return;
-
- intel_region_release_pbo(intelScreen, region);
-
- assert(region->cpp * region->pitch * region->height == pbo->Base.Size);
-
- DBG("%s (%d bytes)\n", __FUNCTION__, pbo->Base.Size);
-
- /* Now blit from the texture buffer to the new buffer:
- */
-
- intel_batchbuffer_flush(intel->batch);
-
- if (!intel->locked) {
- LOCK_HARDWARE(intel);
- intelEmitCopyBlit(intel,
- region->cpp,
- region->pitch,
- region->buffer, 0,
- region->pitch,
- pbo->buffer, 0,
- 0, 0, 0, 0,
- region->pitch, region->height,
- GL_COPY);
-
- intel_batchbuffer_flush(intel->batch);
- UNLOCK_HARDWARE(intel);
- }
- else {
- intelEmitCopyBlit(intel,
- region->cpp,
- region->pitch,
- region->buffer, 0,
- region->pitch,
- pbo->buffer, 0,
- 0, 0, 0, 0,
- region->pitch, region->height,
- GL_COPY);
-
- intel_batchbuffer_flush(intel->batch);
+ int cpp = region->cpp;
+ uint32_t tiling = region->tiling;
+
+ 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;
}
}
-dri_bo *
-intel_region_buffer(intelScreenPrivate *intelScreen,
- struct intel_region *region, GLuint flag)
+/**
+ * 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.
+ */
+uint32_t
+intel_region_get_aligned_offset(struct intel_region *region, uint32_t x,
+ uint32_t y)
{
- if (region->pbo) {
- if (flag == INTEL_WRITE_PART)
- intel_region_cow(intelScreen, region);
- else if (flag == INTEL_WRITE_FULL)
- intel_region_release_pbo(intelScreen, region);
+ int cpp = region->cpp;
+ uint32_t pitch = region->pitch;
+ uint32_t tiling = region->tiling;
+
+ 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;
}
-
- return region->buffer;
}
projects / mesa.git / blobdiff