lib/drmtest: extract gem_set_tiling

Way too much copy-pasting going on here.

Also fix a compiler warnings in gem_stress while fixup things up.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

lib/drmtest.c

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2007 Intel Corporation
+ * Copyright © 2007, 2011 Intel Corporation
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -22,16 +22,21 @@
  *
  * Authors:
  *    Eric Anholt <eric@anholt.net>
+ *    Daniel Vetter <daniel.vetter@ffwll.ch>
  *
  */
 
 #include <fcntl.h>
 #include <sys/stat.h>
 #include <sys/ioctl.h>
+#include <string.h>
 #include "drmtest.h"
 #include "i915_drm.h"
 #include "intel_chipset.h"
 
+/* This file contains a bunch of wrapper functions to directly use gem ioctls.
+ * Mostly useful to write kernel tests. */
+
 static int
 is_intel(int fd)
 {
@@ -110,3 +115,22 @@ int drm_open_any_master(void)
 	fprintf(stderr, "Couldn't find an un-controlled DRM device\n");
 	abort();
 }
+
+void gem_set_tiling(int fd, uint32_t handle, int tiling, int stride)
+{
+	struct drm_i915_gem_set_tiling st;
+	int ret;
+
+	memset(&st, 0, sizeof(st));
+	do {
+		st.handle = handle;
+		st.tiling_mode = tiling;
+		st.stride = tiling ? stride : 0;
+
+		ret = ioctl(fd, DRM_IOCTL_I915_GEM_SET_TILING, &st);
+	} while (ret == -1 && (errno == EINTR || errno == EAGAIN));
+	assert(ret == 0);
+	assert(st.tiling_mode == tiling);
+}
+
+

lib/drmtest.h

@@ -35,3 +35,6 @@
 
 int drm_open_any(void);
 int drm_open_any_master(void);
+
+
+void gem_set_tiling(int fd, uint32_t handle, int tiling, int stride);

tests/gem_gtt_speed.c

@@ -98,20 +98,6 @@ static int gem_read(int fd,
 	return drmIoctl(fd, DRM_IOCTL_I915_GEM_PREAD, &pread);
 }
 
-static void gem_set_tiling(int fd, uint32_t handle, int tiling)
-{
-	struct drm_i915_gem_set_tiling set_tiling;
-	int ret;
-
-	do {
-		set_tiling.handle = handle;
-		set_tiling.tiling_mode = tiling;
-		set_tiling.stride = 512;
-
-		ret = ioctl(fd, DRM_IOCTL_I915_GEM_SET_TILING, &set_tiling);
-	} while (ret == -1 && (errno == EINTR || errno == EAGAIN));
-}
-
 static void gem_close(int fd, uint32_t handle)
 {
 	struct drm_gem_close close;
@@ -165,7 +151,7 @@ int main(int argc, char **argv)
 		if (tiling != I915_TILING_NONE) {
 			printf("\nSetting tiling mode to %s\n",
 			       tiling == I915_TILING_X ? "X" : "Y");
-			gem_set_tiling(fd, handle, tiling);
+			gem_set_tiling(fd, handle, tiling, 512);
 		}
 
 		if (tiling == I915_TILING_NONE) {

tests/gem_stress.c

@@ -188,14 +188,14 @@ void keep_gpu_busy(void)
 		 busy_bo, 0, 4096, 0, 128);
 }
 
-static void set_to_cpu_domain(struct scratch_buf *buf, int write)
+static void set_to_cpu_domain(struct scratch_buf *buf, int writing)
 {
 	struct drm_i915_gem_set_domain set_domain;
 	int ret;
 
 	set_domain.handle = buf->bo->handle;
 	set_domain.read_domains = I915_GEM_DOMAIN_CPU;
-	if (write)
+	if (writing)
 		set_domain.write_domain = I915_GEM_DOMAIN_CPU;
 	else
 		set_domain.write_domain = 0;
@@ -522,32 +522,6 @@ static void exchange_buf(void *array, unsigned i, unsigned j)
 }
 
 
-/* libdrm is too clever and prevents us from changing tiling of buffers already
- * used in relocations. */
-static void set_tiling(drm_intel_bo *bo, unsigned *tiling, unsigned stride)
-{
-	struct drm_i915_gem_set_tiling set_tiling;
-	int ret;
-
-	memset(&set_tiling, 0, sizeof(set_tiling));
-	do {
-		/* set_tiling is slightly broken and overwrites the
-		 * input on the error path, so we have to open code
-		 * drmIoctl.
-		 */
-		set_tiling.handle = bo->handle;
-		set_tiling.tiling_mode = *tiling;
-		set_tiling.stride = tiling ? stride : 0;
-
-		ret = ioctl(drm_fd,
-			    DRM_IOCTL_I915_GEM_SET_TILING,
-			    &set_tiling);
-	} while (ret == -1 && (errno == EINTR || errno == EAGAIN));
-	assert(ret != -1);
-
-	*tiling = set_tiling.tiling_mode;
-}
-
 static void init_set(unsigned set)
 {
 	long int r;
@@ -591,9 +565,9 @@ static void init_set(unsigned set)
 
 		sanitize_stride(&buffers[set][i]);
 
-		set_tiling(buffers[set][i].bo,
+		gem_set_tiling(drm_fd, buffers[set][i].bo->handle,
-			   &buffers[set][i].tiling,
+			       buffers[set][i].tiling,
-			   buffers[set][i].stride);
+			       buffers[set][i].stride);
 
 		if (options.trace_tile != -1 && i == options.trace_tile/options.tiles_per_buf)
 			printf("changing buffer %i containing tile %i: tiling %i, stride %i\n", i,
@@ -857,11 +831,8 @@ static void init(void)
 	batch = intel_batchbuffer_alloc(bufmgr, devid);
 
 	busy_bo = drm_intel_bo_alloc(bufmgr, "tiled bo", BUSY_BUF_SIZE, 4096);
-	if (options.forced_tiling >= 0) {
+	if (options.forced_tiling >= 0)
-		tmp = options.forced_tiling;
+		gem_set_tiling(drm_fd, busy_bo->handle, options.forced_tiling, 4096);
-		set_tiling(busy_bo, &tmp, 4096);
-		assert(tmp == options.forced_tiling);
-	}
 
 	for (i = 0; i < num_buffers; i++) {
 		init_buffer(&buffers[0][i], options.scratch_buf_size);

tests/gem_tiled_pread.c

@@ -103,21 +103,6 @@ gem_read(int fd, uint32_t handle, int offset, int length, void *buf)
 	assert(ret == 0);
 }
 
-static void
-gem_set_tiling(int fd, uint32_t handle, int tiling)
-{
-	struct drm_i915_gem_set_tiling set_tiling;
-	int ret;
-
-	do {
-		set_tiling.handle = handle;
-		set_tiling.tiling_mode = tiling;
-		set_tiling.stride = WIDTH * sizeof(uint32_t);
-
-		ret = ioctl(fd, DRM_IOCTL_I915_GEM_SET_TILING, &set_tiling);
-	} while (ret == -1 && (errno == EINTR || errno == EAGAIN));
-}
-
 static void
 gem_get_tiling(int fd, uint32_t handle, uint32_t *tiling, uint32_t *swizzle)
 {
@@ -142,7 +127,7 @@ create_bo(int fd)
 	int i;
 
 	handle = gem_create(fd, sizeof(linear));
-	gem_set_tiling(fd, handle, I915_TILING_X);
+	gem_set_tiling(fd, handle, I915_TILING_X, WIDTH * sizeof(uint32_t));
 
 	/* Fill the BO with dwords starting at start_val */
 	data = gem_mmap(fd, handle, sizeof(linear), PROT_READ | PROT_WRITE);

tests/gem_tiled_pread_pwrite.c

@@ -122,21 +122,6 @@ gem_read(int fd, uint32_t handle, int offset, int length, void *buf)
 	assert(ret == 0);
 }
 
-static void
-gem_set_tiling(int fd, uint32_t handle, int tiling)
-{
-	struct drm_i915_gem_set_tiling set_tiling;
-	int ret;
-
-	do {
-		set_tiling.handle = handle;
-		set_tiling.tiling_mode = tiling;
-		set_tiling.stride = WIDTH * sizeof(uint32_t);
-
-		ret = ioctl(fd, DRM_IOCTL_I915_GEM_SET_TILING, &set_tiling);
-	} while (ret == -1 && (errno == EINTR || errno == EAGAIN));
-}
-
 static void
 gem_get_tiling(int fd, uint32_t handle, uint32_t *tiling, uint32_t *swizzle)
 {
@@ -161,7 +146,7 @@ create_bo_and_fill(int fd)
 	int i;
 
 	handle = gem_create(fd, sizeof(linear));
-	gem_set_tiling(fd, handle, current_tiling_mode);
+	gem_set_tiling(fd, handle, current_tiling_mode, WIDTH * sizeof(uint32_t));
 
 	/* Fill the BO with dwords starting at start_val */
 	data = gem_mmap(fd, handle, sizeof(linear), PROT_READ | PROT_WRITE);
@@ -178,7 +163,7 @@ create_bo(int fd)
 	uint32_t handle;
 
 	handle = gem_create(fd, sizeof(linear));
-	gem_set_tiling(fd, handle, current_tiling_mode);
+	gem_set_tiling(fd, handle, current_tiling_mode, WIDTH * sizeof(uint32_t));
 
 	return handle;
 }

tests/gen3_mixed_blits.c

@@ -484,22 +484,6 @@ static void *gem_mmap(int fd, uint32_t handle, int size, int prot)
 	return ptr;
 }
 
-static void gem_set_tiling(int fd, uint32_t handle, int tiling, int stride)
-{
-	struct drm_i915_gem_set_tiling set_tiling;
-	int ret;
-
-	do {
-		set_tiling.handle = handle;
-		set_tiling.tiling_mode = tiling;
-		set_tiling.stride = stride;
-
-		ret = ioctl(fd, DRM_IOCTL_I915_GEM_SET_TILING, &set_tiling);
-	} while (ret == -1 && (errno == EINTR || errno == EAGAIN));
-	assert(ret == 0);
-	assert(set_tiling.tiling_mode == tiling);
-}
-
 static uint32_t
 create_bo(int fd, uint32_t val, int tiling)
 {

tests/gen3_render_mixed_blits.c

@@ -373,22 +373,6 @@ static void *gem_mmap(int fd, uint32_t handle, int size, int prot)
 	return ptr;
 }
 
-static void gem_set_tiling(int fd, uint32_t handle, int tiling, int stride)
-{
-	struct drm_i915_gem_set_tiling set_tiling;
-	int ret;
-
-	do {
-		set_tiling.handle = handle;
-		set_tiling.tiling_mode = tiling;
-		set_tiling.stride = stride;
-
-		ret = ioctl(fd, DRM_IOCTL_I915_GEM_SET_TILING, &set_tiling);
-	} while (ret == -1 && (errno == EINTR || errno == EAGAIN));
-	assert(ret == 0);
-	assert(set_tiling.tiling_mode == tiling);
-}
-
 static uint32_t
 create_bo(int fd, uint32_t val, int tiling)
 {

tests/gen3_render_tiledx_blits.c

@@ -360,22 +360,6 @@ static void *gem_mmap(int fd, uint32_t handle, int size, int prot)
 	return ptr;
 }
 
-static void gem_set_tiling(int fd, uint32_t handle, int tiling, int stride)
-{
-	struct drm_i915_gem_set_tiling set_tiling;
-	int ret;
-
-	do {
-		set_tiling.handle = handle;
-		set_tiling.tiling_mode = tiling;
-		set_tiling.stride = stride;
-
-		ret = ioctl(fd, DRM_IOCTL_I915_GEM_SET_TILING, &set_tiling);
-	} while (ret == -1 && (errno == EINTR || errno == EAGAIN));
-	assert(ret == 0);
-	assert(set_tiling.tiling_mode == tiling);
-}
-
 static uint32_t
 create_bo(int fd, uint32_t val)
 {

tests/gen3_render_tiledy_blits.c

@@ -360,22 +360,6 @@ static void *gem_mmap(int fd, uint32_t handle, int size, int prot)
 	return ptr;
 }
 
-static void gem_set_tiling(int fd, uint32_t handle, int tiling, int stride)
-{
-	struct drm_i915_gem_set_tiling set_tiling;
-	int ret;
-
-	do {
-		set_tiling.handle = handle;
-		set_tiling.tiling_mode = tiling;
-		set_tiling.stride = stride;
-
-		ret = ioctl(fd, DRM_IOCTL_I915_GEM_SET_TILING, &set_tiling);
-	} while (ret == -1 && (errno == EINTR || errno == EAGAIN));
-	assert(ret == 0);
-	assert(set_tiling.tiling_mode == tiling);
-}
-
 static uint32_t
 create_bo(int fd, uint32_t val)
 {