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tests/gem_tiled_pread: fixup detiler for gen2

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Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2011-11-01 12:10:35 +01:00
parent 6b4f5c7ad8
commit 37c6400734
1 changed files with 26 additions and 8 deletions
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34
tests/gem_tiled_pread.c
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@ -49,6 +49,7 @@
#include "drm.h"
#include "i915_drm.h"
#include "drmtest.h"
#include "intel_gpu_tools.h"
#define WIDTH 512
#define HEIGHT 512
@ -56,6 +57,10 @@ static uint32_t linear[WIDTH * HEIGHT];
#define PAGE_SIZE 4096
static int tile_width;
static int tile_height;
static int tile_size;
static uint32_t
gem_create(int fd, int size)
{
@ -160,18 +165,18 @@ swizzle_bit(int bit, int offset)
static uint32_t
calculate_expected(int offset)
{
int tile_off = offset & (PAGE_SIZE - 1);
int tile_base = offset & -PAGE_SIZE;
int tile_index = tile_base / PAGE_SIZE;
int tiles_per_row = 4*WIDTH / 512; /* X tiled = 512b rows */
int tile_off = offset & (tile_size - 1);
int tile_base = offset & -tile_size;
int tile_index = tile_base / tile_size;
int tiles_per_row = 4*WIDTH / tile_width;
/* base x,y values from the tile (page) index. */
int base_y = tile_index / tiles_per_row * 8;
int base_x = tile_index % tiles_per_row * 128;
int base_y = tile_index / tiles_per_row * tile_height;
int base_x = tile_index % tiles_per_row * (tile_width/4);
/* x, y offsets within the tile */
int tile_y = tile_off / 512;
int tile_x = (tile_off % 512) / 4;
int tile_y = tile_off / tile_width;
int tile_x = (tile_off % tile_width) / 4;
/* printf("%3d, %3d, %3d,%3d\n", base_x, base_y, tile_x, tile_y); */
return (base_y + tile_y) * WIDTH + base_x + tile_x;
@ -184,12 +189,25 @@ main(int argc, char **argv)
int i, iter = 100;
uint32_t tiling, swizzle;
uint32_t handle;
uint32_t devid;
fd = drm_open_any();
handle = create_bo(fd);
gem_get_tiling(fd, handle, &tiling, &swizzle);
devid = intel_get_drm_devid(fd);
if (IS_GEN2(devid)) {
tile_height = 16;
tile_width = 128;
tile_size = 2048;
} else {
tile_height = 8;
tile_width = 512;
tile_size = PAGE_SIZE;
}
/* Read a bunch of random subsets of the data and check that they come
* out right.
*/