#include "amd_family.h"
#include "addrlib/src/amdgpu_asic_addr.h"
#include "ac_gpu_info.h"
+#include "util/hash_table.h"
#include "util/macros.h"
+#include "util/simple_mtx.h"
#include "util/u_atomic.h"
#include "util/u_math.h"
+#include "util/u_memory.h"
#include "sid.h"
#include <errno.h>
struct ac_addrlib {
ADDR_HANDLE handle;
+
+ /* The cache of DCC retile maps for reuse when allocating images of
+ * similar sizes.
+ */
+ simple_mtx_t dcc_retile_map_lock;
+ struct hash_table *dcc_retile_maps;
+};
+
+struct dcc_retile_map_key {
+ enum radeon_family family;
+ unsigned retile_width;
+ unsigned retile_height;
+ bool rb_aligned;
+ bool pipe_aligned;
+ unsigned dcc_retile_num_elements;
+ ADDR2_COMPUTE_DCC_ADDRFROMCOORD_INPUT input;
};
+static uint32_t dcc_retile_map_hash_key(const void *key)
+{
+ return _mesa_hash_data(key, sizeof(struct dcc_retile_map_key));
+}
+
+static bool dcc_retile_map_keys_equal(const void *a, const void *b)
+{
+ return memcmp(a, b, sizeof(struct dcc_retile_map_key)) == 0;
+}
+
+static void dcc_retile_map_free(struct hash_entry *entry)
+{
+ free((void*)entry->key);
+ free(entry->data);
+}
+
+static uint32_t *ac_compute_dcc_retile_map(struct ac_addrlib *addrlib,
+ const struct radeon_info *info,
+ unsigned retile_width, unsigned retile_height,
+ bool rb_aligned, bool pipe_aligned, bool use_uint16,
+ unsigned dcc_retile_num_elements,
+ const ADDR2_COMPUTE_DCC_ADDRFROMCOORD_INPUT *in)
+{
+ unsigned dcc_retile_map_size = dcc_retile_num_elements * (use_uint16 ? 2 : 4);
+ struct dcc_retile_map_key key;
+
+ assert(in->numFrags == 1 && in->numSlices == 1 && in->numMipLevels == 1);
+
+ memset(&key, 0, sizeof(key));
+ key.family = info->family;
+ key.retile_width = retile_width;
+ key.retile_height = retile_height;
+ key.rb_aligned = rb_aligned;
+ key.pipe_aligned = pipe_aligned;
+ key.dcc_retile_num_elements = dcc_retile_num_elements;
+ memcpy(&key.input, in, sizeof(*in));
+
+ simple_mtx_lock(&addrlib->dcc_retile_map_lock);
+
+ /* If we have already computed this retile map, get it from the hash table. */
+ struct hash_entry *entry = _mesa_hash_table_search(addrlib->dcc_retile_maps, &key);
+ if (entry) {
+ uint32_t *map = entry->data;
+ simple_mtx_unlock(&addrlib->dcc_retile_map_lock);
+ return map;
+ }
+
+ ADDR2_COMPUTE_DCC_ADDRFROMCOORD_INPUT addrin;
+ memcpy(&addrin, in, sizeof(*in));
+
+ ADDR2_COMPUTE_DCC_ADDRFROMCOORD_OUTPUT addrout = {};
+ addrout.size = sizeof(addrout);
+
+ void *dcc_retile_map = malloc(dcc_retile_map_size);
+ if (!dcc_retile_map) {
+ simple_mtx_unlock(&addrlib->dcc_retile_map_lock);
+ return NULL;
+ }
+
+ unsigned index = 0;
+
+ for (unsigned y = 0; y < retile_height; y += in->compressBlkHeight) {
+ addrin.y = y;
+
+ for (unsigned x = 0; x < retile_width; x += in->compressBlkWidth) {
+ addrin.x = x;
+
+ /* Compute src DCC address */
+ addrin.dccKeyFlags.pipeAligned = pipe_aligned;
+ addrin.dccKeyFlags.rbAligned = rb_aligned;
+ addrout.addr = 0;
+
+ if (Addr2ComputeDccAddrFromCoord(addrlib->handle, &addrin, &addrout) != ADDR_OK) {
+ simple_mtx_unlock(&addrlib->dcc_retile_map_lock);
+ return NULL;
+ }
+
+ if (use_uint16)
+ ((uint16_t*)dcc_retile_map)[index * 2] = addrout.addr;
+ else
+ ((uint32_t*)dcc_retile_map)[index * 2] = addrout.addr;
+
+ /* Compute dst DCC address */
+ addrin.dccKeyFlags.pipeAligned = 0;
+ addrin.dccKeyFlags.rbAligned = 0;
+ addrout.addr = 0;
+
+ if (Addr2ComputeDccAddrFromCoord(addrlib->handle, &addrin, &addrout) != ADDR_OK) {
+ simple_mtx_unlock(&addrlib->dcc_retile_map_lock);
+ return NULL;
+ }
+
+ if (use_uint16)
+ ((uint16_t*)dcc_retile_map)[index * 2 + 1] = addrout.addr;
+ else
+ ((uint32_t*)dcc_retile_map)[index * 2 + 1] = addrout.addr;
+
+ assert(index * 2 + 1 < dcc_retile_num_elements);
+ index++;
+ }
+ }
+ /* Fill the remaining pairs with the last one (for the compute shader). */
+ for (unsigned i = index * 2; i < dcc_retile_num_elements; i++) {
+ if (use_uint16)
+ ((uint16_t*)dcc_retile_map)[i] = ((uint16_t*)dcc_retile_map)[i - 2];
+ else
+ ((uint32_t*)dcc_retile_map)[i] = ((uint32_t*)dcc_retile_map)[i - 2];
+ }
+
+ /* Insert the retile map into the hash table, so that it can be reused and
+ * the computation can be skipped for similar image sizes.
+ */
+ _mesa_hash_table_insert(addrlib->dcc_retile_maps,
+ mem_dup(&key, sizeof(key)), dcc_retile_map);
+
+ simple_mtx_unlock(&addrlib->dcc_retile_map_lock);
+ return dcc_retile_map;
+}
+
static void *ADDR_API allocSysMem(const ADDR_ALLOCSYSMEM_INPUT * pInput)
{
return malloc(pInput->sizeInBytes);
}
addrlib->handle = addrCreateOutput.hLib;
+ simple_mtx_init(&addrlib->dcc_retile_map_lock, mtx_plain);
+ addrlib->dcc_retile_maps = _mesa_hash_table_create(NULL, dcc_retile_map_hash_key,
+ dcc_retile_map_keys_equal);
return addrlib;
}
void ac_addrlib_destroy(struct ac_addrlib *addrlib)
{
AddrDestroy(addrlib->handle);
+ simple_mtx_destroy(&addrlib->dcc_retile_map_lock);
+ _mesa_hash_table_destroy(addrlib->dcc_retile_maps, dcc_retile_map_free);
free(addrlib);
}
surf->u.gfx9.dcc_retile_use_uint16 =
surf->u.gfx9.display_dcc_size <= UINT16_MAX + 1 &&
surf->dcc_size <= UINT16_MAX + 1;
+
+ /* Align the retile map size to get more hash table hits and
+ * decrease the maximum memory footprint when all retile maps
+ * are cached in the hash table.
+ */
+ unsigned retile_dim[2] = {in->width, in->height};
+
+ for (unsigned i = 0; i < 2; i++) {
+ /* Increase the alignment as the size increases.
+ * Greater alignment increases retile compute work,
+ * but decreases maximum memory footprint for the cache.
+ *
+ * With this alignment, the worst case memory footprint of
+ * the cache is:
+ * 1920x1080: 55 MB
+ * 2560x1440: 99 MB
+ * 3840x2160: 305 MB
+ *
+ * The worst case size in MB can be computed in Haskell as follows:
+ * (sum (map get_retile_size (map get_dcc_size (deduplicate (map align_pair
+ * [(i*16,j*16) | i <- [1..maxwidth`div`16], j <- [1..maxheight`div`16]]))))) `div` 1024^2
+ * where
+ * alignment x = if x <= 512 then 16 else if x <= 1024 then 32 else if x <= 2048 then 64 else 128
+ * align x = (x + (alignment x) - 1) `div` (alignment x) * (alignment x)
+ * align_pair e = (align (fst e), align (snd e))
+ * deduplicate = map head . groupBy (\ a b -> ((fst a) == (fst b)) && ((snd a) == (snd b))) . sortBy compare
+ * get_dcc_size e = ((fst e) * (snd e) * bpp) `div` 256
+ * get_retile_size dcc_size = dcc_size * 2 * (if dcc_size <= 2^16 then 2 else 4)
+ * bpp = 4; maxwidth = 3840; maxheight = 2160
+ */
+ if (retile_dim[i] <= 512)
+ retile_dim[i] = align(retile_dim[i], 16);
+ else if (retile_dim[i] <= 1024)
+ retile_dim[i] = align(retile_dim[i], 32);
+ else if (retile_dim[i] <= 2048)
+ retile_dim[i] = align(retile_dim[i], 64);
+ else
+ retile_dim[i] = align(retile_dim[i], 128);
+
+ /* Don't align more than the DCC pixel alignment. */
+ assert(dout.metaBlkWidth >= 128 && dout.metaBlkHeight >= 128);
+ }
+
surf->u.gfx9.dcc_retile_num_elements =
- DIV_ROUND_UP(in->width, dout.compressBlkWidth) *
- DIV_ROUND_UP(in->height, dout.compressBlkHeight) * 2;
+ DIV_ROUND_UP(retile_dim[0], dout.compressBlkWidth) *
+ DIV_ROUND_UP(retile_dim[1], dout.compressBlkHeight) * 2;
/* Align the size to 4 (for the compute shader). */
surf->u.gfx9.dcc_retile_num_elements =
align(surf->u.gfx9.dcc_retile_num_elements, 4);
if (!(surf->flags & RADEON_SURF_IMPORTED)) {
/* Compute address mapping from non-displayable to displayable DCC. */
- ADDR2_COMPUTE_DCC_ADDRFROMCOORD_INPUT addrin = {};
+ ADDR2_COMPUTE_DCC_ADDRFROMCOORD_INPUT addrin;
+ memset(&addrin, 0, sizeof(addrin));
addrin.size = sizeof(addrin);
addrin.swizzleMode = din.swizzleMode;
addrin.resourceType = din.resourceType;
addrin.metaBlkWidth = dout.metaBlkWidth;
addrin.metaBlkHeight = dout.metaBlkHeight;
addrin.metaBlkDepth = dout.metaBlkDepth;
- addrin.dccRamSliceSize = dout.dccRamSliceSize;
-
- ADDR2_COMPUTE_DCC_ADDRFROMCOORD_OUTPUT addrout = {};
- addrout.size = sizeof(addrout);
+ addrin.dccRamSliceSize = 0; /* Don't care for non-layered images. */
surf->u.gfx9.dcc_retile_map =
- malloc(surf->u.gfx9.dcc_retile_num_elements * 4);
+ ac_compute_dcc_retile_map(addrlib, info,
+ retile_dim[0], retile_dim[1],
+ surf->u.gfx9.dcc.rb_aligned,
+ surf->u.gfx9.dcc.pipe_aligned,
+ surf->u.gfx9.dcc_retile_use_uint16,
+ surf->u.gfx9.dcc_retile_num_elements,
+ &addrin);
if (!surf->u.gfx9.dcc_retile_map)
return ADDR_OUTOFMEMORY;
-
- unsigned index = 0;
-
- for (unsigned y = 0; y < in->height; y += dout.compressBlkHeight) {
- addrin.y = y;
-
- for (unsigned x = 0; x < in->width; x += dout.compressBlkWidth) {
- addrin.x = x;
-
- /* Compute src DCC address */
- addrin.dccKeyFlags.pipeAligned = surf->u.gfx9.dcc.pipe_aligned;
- addrin.dccKeyFlags.rbAligned = surf->u.gfx9.dcc.rb_aligned;
- addrout.addr = 0;
-
- ret = Addr2ComputeDccAddrFromCoord(addrlib->handle, &addrin, &addrout);
- if (ret != ADDR_OK)
- return ret;
-
- surf->u.gfx9.dcc_retile_map[index * 2] = addrout.addr;
-
- /* Compute dst DCC address */
- addrin.dccKeyFlags.pipeAligned = 0;
- addrin.dccKeyFlags.rbAligned = 0;
- addrout.addr = 0;
-
- ret = Addr2ComputeDccAddrFromCoord(addrlib->handle, &addrin, &addrout);
- if (ret != ADDR_OK)
- return ret;
-
- surf->u.gfx9.dcc_retile_map[index * 2 + 1] = addrout.addr;
-
- assert(index * 2 + 1 < surf->u.gfx9.dcc_retile_num_elements);
- index++;
- }
- }
- /* Fill the remaining pairs with the last one (for the compute shader). */
- for (unsigned i = index * 2; i < surf->u.gfx9.dcc_retile_num_elements; i++)
- surf->u.gfx9.dcc_retile_map[i] = surf->u.gfx9.dcc_retile_map[i - 2];
}
}
}
projects / mesa.git / commitdiff