[Intel-gfx] [PATCH igt] igt/gem_softpin: Remove false dependencies on esoteric features
Chris Wilson
chris at chris-wilson.co.uk
Thu Jan 14 03:02:49 PST 2016
For softpinning, we do not require either userptr or extended ppgtt, so
remove those requirements and make the tests work universally. (Certain
ABI tests require large GTT, or per-process GTT.)
In the process, make the tests more extensive - validate overlapping
handling more careful, explicitly test no-relocation support, validate
more ABI handling. And for fun, cause a kernel GPF.
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
tests/gem_softpin.c | 1313 +++++++++++++--------------------------------------
1 file changed, 324 insertions(+), 989 deletions(-)
diff --git a/tests/gem_softpin.c b/tests/gem_softpin.c
index 1cbde4e..f188559 100644
--- a/tests/gem_softpin.c
+++ b/tests/gem_softpin.c
@@ -26,80 +26,10 @@
*
*/
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <string.h>
-#include <fcntl.h>
-#include <inttypes.h>
-#include <errno.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <sys/time.h>
-#include <malloc.h>
-#include "drm.h"
-#include "ioctl_wrappers.h"
-#include "drmtest.h"
-#include "intel_chipset.h"
-#include "intel_io.h"
-#include "i915_drm.h"
-#include <assert.h>
-#include <sys/wait.h>
-#include <sys/ipc.h>
-#include <sys/shm.h>
-#include "igt_kms.h"
-#include <inttypes.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#define BO_SIZE 4096
-#define MULTIPAGE_BO_SIZE 2 * BO_SIZE
-#define STORE_BATCH_BUFFER_SIZE 4
+#include "igt.h"
+
#define EXEC_OBJECT_PINNED (1<<4)
#define EXEC_OBJECT_SUPPORTS_48B_ADDRESS (1<<3)
-#define SHARED_BUFFER_SIZE 4096
-
-typedef struct drm_i915_gem_userptr i915_gem_userptr;
-
-static uint32_t init_userptr(int fd, i915_gem_userptr *, void *ptr, uint64_t size);
-static void *create_mem_buffer(uint64_t size);
-static int gem_call_userptr_ioctl(int fd, i915_gem_userptr *userptr);
-static void gem_pin_userptr_test(void);
-static void gem_pin_bo_test(void);
-static void gem_pin_invalid_vma_test(bool test_decouple_flags, bool test_canonical_offset);
-static void gem_pin_overlap_test(void);
-static void gem_pin_high_address_test(void);
-
-#define NO_PPGTT 0
-#define ALIASING_PPGTT 1
-#define FULL_32_BIT_PPGTT 2
-#define FULL_48_BIT_PPGTT 3
-/* uses_full_ppgtt
- * Finds supported PPGTT details.
- * @fd DRM fd
- * @min can be
- * 0 - No PPGTT
- * 1 - Aliasing PPGTT
- * 2 - Full PPGTT (32b)
- * 3 - Full PPGTT (48b)
- * RETURNS true/false if min support is present
-*/
-static bool uses_full_ppgtt(int fd, int min)
-{
- struct drm_i915_getparam gp;
- int val = 0;
-
- memset(&gp, 0, sizeof(gp));
- gp.param = 18; /* HAS_ALIASING_PPGTT */
- gp.value = &val;
-
- if (drmIoctl(fd, DRM_IOCTL_I915_GETPARAM, &gp))
- return 0;
-
- errno = 0;
- return val >= min;
-}
/* has_softpin_support
* Finds if softpin feature is supported
@@ -121,83 +51,6 @@ static bool has_softpin_support(int fd)
return (val == 1);
}
-/* gem_call_userptr_ioctl
- * Helper to call ioctl - TODO: move to lib
- * @fd - drm fd
- * @userptr - pointer to initialised userptr
- * RETURNS status of ioctl call
-*/
-static int gem_call_userptr_ioctl(int fd, i915_gem_userptr *userptr)
-{
- int ret;
-
- ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_USERPTR, userptr);
-
- if (ret)
- ret = errno;
-
- return ret;
-}
-
-/* init_userptr
- * Helper that inits userptr an returns handle
- * @fd - drm fd
- * @userptr - pointer to empty userptr
- * @ptr - buffer to be shared
- * @size - size of buffer
- * @ro - read only flag
- * RETURNS handle to shared buffer
-*/
-static uint32_t init_userptr(int fd, i915_gem_userptr *userptr, void *ptr,
- uint64_t size)
-{
- int ret;
-
- memset((void*)userptr, 0, sizeof(i915_gem_userptr));
-
- userptr->user_ptr = (unsigned long)ptr; /* Need the cast to overcome compiler warning */
- userptr->user_size = size;
- userptr->flags = 0; /* use synchronized operation */
-
- ret = gem_call_userptr_ioctl(fd, userptr);
- igt_assert_eq(ret, 0);
-
- return userptr->handle;
-}
-
-/* create_mem_buffer
- * Creates a 4K aligned CPU buffer
- * @size - size of buffer
- * RETURNS pointer to buffer of @size
-*/
-static void *create_mem_buffer(uint64_t size)
-{
- void *addr;
- int ret;
-
- ret = posix_memalign(&addr, 4096, size);
- igt_assert(ret == 0);
-
- return addr;
-}
-
-/* setup_exec_obj
- * populate exec object
- * @exec - exec object
- * @handle - handle to gem buffer
- * @flags - any flags
- * @offset - requested VMA
-*/
-static void setup_exec_obj(struct drm_i915_gem_exec_object2 *exec,
- uint32_t handle, uint32_t flags,
- uint64_t offset)
-{
- memset(exec, 0, sizeof(struct drm_i915_gem_exec_object2));
- exec->handle = handle;
- exec->flags = flags;
- exec->offset = offset;
-}
-
/* gen8_canonical_addr
* Used to convert any address into canonical form, i.e. [63:48] == [47].
* Based on kernel's sign_extend64 implementation.
@@ -210,904 +63,386 @@ static uint64_t gen8_canonical_addr(uint64_t address)
return (__s64)(address << shift) >> shift;
}
-/* gem_store_data_svm
- * populate batch buffer with MI_STORE_DWORD_IMM command
- * @fd: drm file descriptor
- * @cmd_buf: batch buffer
- * @vaddr: destination Virtual address
- * @data: data to be store at destination
- * @end: whether to end batch buffer or not
-*/
-static int gem_store_data_svm(int fd, uint32_t *cmd_buf, uint64_t vaddr,
- uint32_t data, bool end)
+static int __gem_execbuf(int fd, struct drm_i915_gem_execbuffer2 *eb)
{
- int i = 0;
-
- cmd_buf[i++] = MI_STORE_DWORD_IMM;
- cmd_buf[i++] = vaddr & 0xFFFFFFFC;
- cmd_buf[i++] = (vaddr >> 32) & 0xFFFF; /* bits 32:47 */
-
- cmd_buf[i++] = data;
- if (end) {
- cmd_buf[i++] = MI_BATCH_BUFFER_END;
- cmd_buf[i++] = 0;
- }
-
- return(i * sizeof(uint32_t));
+ int err = 0;
+ if (drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, eb))
+ err = -errno;
+ return err;
}
-/* gem_store_data
- * populate batch buffer with MI_STORE_DWORD_IMM command
- * This one fills up reloc buffer as well
- * @fd: drm file descriptor
- * @cmd_buf: batch buffer
- * @data: data to be store at destination
- * @reloc - relocation entry
- * @end: whether to end batch buffer or not
-*/
-static int gem_store_data(int fd, uint32_t *cmd_buf,
- uint32_t handle, uint32_t data,
- struct drm_i915_gem_relocation_entry *reloc,
- bool end)
+static void test_invalid(int fd)
{
- int i = 0;
-
- cmd_buf[i++] = MI_STORE_DWORD_IMM;
- cmd_buf[i++] = 0; /* lower 31 bits of 48 bit address - 0 reloc needed */
- cmd_buf[i++] = 0; /* upper 15 bits of 48 bit address - 0 reloc needed */
- reloc->offset = 1 * sizeof(uint32_t);
- reloc->delta = 0;
- reloc->target_handle = handle;
- reloc->read_domains = I915_GEM_DOMAIN_RENDER;
- reloc->write_domain = I915_GEM_DOMAIN_RENDER;
- reloc->presumed_offset = 0;
- cmd_buf[i++] = data;
- if (end) {
- cmd_buf[i++] = MI_BATCH_BUFFER_END;
- cmd_buf[i++] = 0;
+ const uint32_t bbe = MI_BATCH_BUFFER_END;
+ struct drm_i915_gem_execbuffer2 execbuf;
+ struct drm_i915_gem_exec_object2 object;
+
+ memset(&execbuf, 0, sizeof(execbuf));
+ execbuf.buffers_ptr = (unsigned long)&object;
+ execbuf.buffer_count = 1;
+
+ memset(&object, 0, sizeof(object));
+ object.handle = gem_create(fd, 2*4096);
+ object.flags = EXEC_OBJECT_SUPPORTS_48B_ADDRESS | EXEC_OBJECT_PINNED;
+ gem_write(fd, object.handle, 0, &bbe, sizeof(bbe));
+
+ /* Check invalid alignment */
+ object.offset = 4096;
+ object.alignment = 64*1024;
+ igt_assert_eq(__gem_execbuf(fd, &execbuf), -EINVAL);
+ object.alignment = 0;
+
+ /* Check wraparound */
+ object.offset = -4096ULL;
+ igt_assert_eq(__gem_execbuf(fd, &execbuf), -EINVAL);
+
+ /* Check beyond bounds of aperture */
+ object.offset = gem_aperture_size(fd) - 4096;
+ object.offset = gen8_canonical_addr(object.offset);
+ igt_assert_eq(__gem_execbuf(fd, &execbuf), -EINVAL);
+
+ /* Check gen8 canonical addressing */
+ if (gem_aperture_size(fd) > 1ull<<GEN8_HIGH_ADDRESS_BIT) {
+ object.offset = 1ull << GEN8_HIGH_ADDRESS_BIT;
+ igt_assert_eq(__gem_execbuf(fd, &execbuf), -EINVAL);
+
+ object.offset = gen8_canonical_addr(object.offset);
+ igt_assert_eq(__gem_execbuf(fd, &execbuf), 0);
}
- return (i * sizeof(uint32_t));
-}
+ /* Check extended range */
+ if (gem_aperture_size(fd) > 1ull<<32) {
+ object.flags = EXEC_OBJECT_PINNED;
+ object.offset = 1ull<<32;
+ igt_assert_eq(__gem_execbuf(fd, &execbuf), -EINVAL);
-/* setup_execbuffer
- * helper for buffer execution
- * @execbuf - pointer to execbuffer
- * @exec_object - pointer to exec object2 struct
- * @ring - ring to be used
- * @buffer_count - how manu buffers to submit
- * @batch_length - length of batch buffer
-*/
-static void setup_execbuffer(struct drm_i915_gem_execbuffer2 *execbuf,
- struct drm_i915_gem_exec_object2 *exec_object,
- int ring, int buffer_count, int batch_length)
-{
- execbuf->buffers_ptr = (unsigned long)exec_object;
- execbuf->buffer_count = buffer_count;
- execbuf->batch_start_offset = 0;
- execbuf->batch_len = batch_length;
- execbuf->cliprects_ptr = 0;
- execbuf->num_cliprects = 0;
- execbuf->DR1 = 0;
- execbuf->DR4 = 0;
- execbuf->flags = ring;
- i915_execbuffer2_set_context_id(*execbuf, 0);
- execbuf->rsvd2 = 0;
-}
-
-/* submit_and_sync
- * Helper function for exec and sync functions
- * @fd - drm fd
- * @execbuf - pointer to execbuffer
- * @batch_buf_handle - batch buffer handle
-*/
-static void submit_and_sync(int fd, struct drm_i915_gem_execbuffer2 *execbuf,
- uint32_t batch_buf_handle)
-{
- gem_execbuf(fd, execbuf);
- gem_sync(fd, batch_buf_handle);
-}
-
-/* gem_userptr_sync
- * helper for syncing to CPU domain - copy/paste from userblit
- * @fd - drm fd
- * @handle - buffer handle to sync
-*/
-static void gem_userptr_sync(int fd, uint32_t handle)
-{
- gem_set_domain(fd, handle, I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
-}
-
-
-/* gem_pin_userptr_test
- * This test will create a shared buffer, and create a command
- * for GPU to write data in it
- * CPU will read and make sure expected value is obtained
- * Malloc a 4K buffer
- * Share buffer with with GPU by using userptr ioctl
- * Create batch buffer to write DATA to first dword of buffer
- * Use 0x1000 address as destination address in batch buffer
- * Set EXEC_OBJECT_PINNED flag in exec object
- * Set 'offset' in exec object to 0x1000
- * Submit execbuffer
- * Verify value of first DWORD in shared buffer matches DATA
-*/
-static void gem_pin_userptr_test(void)
-{
- i915_gem_userptr userptr;
- int fd;
- uint32_t *shared_buffer;
- struct drm_i915_gem_execbuffer2 execbuf;
- struct drm_i915_gem_exec_object2 exec_object2[2];
- uint32_t batch_buffer[STORE_BATCH_BUFFER_SIZE + 2];
- uint32_t batch_buf_handle, shared_buf_handle;
- int ring, len;
- const uint32_t data = 0x12345678;
- uint64_t pinning_offset = 0x1000;
-
- fd = drm_open_driver(DRIVER_INTEL);
- igt_require(uses_full_ppgtt(fd, ALIASING_PPGTT));
- igt_require(has_softpin_support(fd));
- batch_buf_handle = gem_create(fd, BO_SIZE);
-
- /* create cpu buffer */
- shared_buffer = create_mem_buffer(BO_SIZE);
-
- /* share with GPU */
- shared_buf_handle = init_userptr(fd, &userptr, shared_buffer,
- BO_SIZE);
-
- /* create command buffer with write command */
- len = gem_store_data_svm(fd, batch_buffer, pinning_offset, data, true);
- gem_write(fd, batch_buf_handle, 0, batch_buffer, len);
-
- /* submit command buffer */
- setup_exec_obj(&exec_object2[0], shared_buf_handle,
- EXEC_OBJECT_PINNED, pinning_offset);
- setup_exec_obj(&exec_object2[1], batch_buf_handle, 0, 0);
-
- ring = I915_EXEC_RENDER;
-
- setup_execbuffer(&execbuf, exec_object2, ring, 2, len);
- submit_and_sync(fd, &execbuf, batch_buf_handle);
- gem_userptr_sync(fd, shared_buf_handle);
-
- /* Check if driver pinned the buffer as requested */
- igt_fail_on_f(exec_object2[0].offset != pinning_offset,
- "\nFailed to pin at requested offset");
- /* check on CPU to see if value changes */
- igt_fail_on_f(shared_buffer[0] != data,
- "\nCPU read does not match GPU write,\
- expected: 0x%x, got: 0x%x\n",
- data, shared_buffer[0]);
-
- gem_close(fd, batch_buf_handle);
- gem_close(fd, shared_buf_handle);
- close(fd);
- free(shared_buffer);
+ object.offset = gen8_canonical_addr(object.offset);
+ object.flags |= EXEC_OBJECT_SUPPORTS_48B_ADDRESS;
+ igt_assert_eq(__gem_execbuf(fd, &execbuf), 0);
+ }
}
-/* gem_pin_bo
- * This test will test softpinning of a gem buffer object
- * Malloc a 4K buffer
- * Create batch buffer to write DATA to first dword of buffer
- * Use 0x1000 address as destination address in batch buffer
- * Set EXEC_OBJECT_PINNED flag in exec object
- * Set 'offset' in exec object to 0x1000
- * Submit execbuffer
- * Verify value pinned offset matches the request
-*/
-static void gem_pin_bo_test(void)
+static void test_softpin(int fd)
{
- int fd;
+ const uint32_t size = 1024 * 1024;
+ const uint32_t bbe = MI_BATCH_BUFFER_END;
struct drm_i915_gem_execbuffer2 execbuf;
- struct drm_i915_gem_exec_object2 exec_object2[2];
- uint32_t batch_buffer[STORE_BATCH_BUFFER_SIZE + 2];
- uint32_t batch_buf_handle, unshared_buf_handle;
- struct drm_i915_gem_relocation_entry reloc[4];
- int ring, len;
- uint32_t value;
- const uint32_t data = 0x12345678;
- uint64_t pinning_offset = 0x1000;
-
- fd = drm_open_driver(DRIVER_INTEL);
- igt_require(uses_full_ppgtt(fd, ALIASING_PPGTT));
- igt_require(has_softpin_support(fd));
-
- batch_buf_handle = gem_create(fd, BO_SIZE);
-
- /* create gem buffer */
- unshared_buf_handle = gem_create(fd, BO_SIZE);
-
- /* create command buffer with write command */
- len = gem_store_data(fd, batch_buffer, unshared_buf_handle, data,
- reloc, true);
- gem_write(fd, batch_buf_handle, 0, batch_buffer, len);
-
- /* submit command buffer */
- setup_exec_obj(&exec_object2[0], unshared_buf_handle,
- EXEC_OBJECT_PINNED, pinning_offset);
- setup_exec_obj(&exec_object2[1], batch_buf_handle, 0, 0);
- exec_object2[1].relocation_count = 1;
- exec_object2[1].relocs_ptr = (unsigned long)reloc;
-
- ring = I915_EXEC_RENDER;
-
- setup_execbuffer(&execbuf, exec_object2, ring, 2, len);
- submit_and_sync(fd, &execbuf, batch_buf_handle);
-
- /* Check if driver pinned the buffer as requested */
- igt_fail_on_f(exec_object2[0].offset != pinning_offset,
- "\nFailed to pin at requested offset");
- gem_read(fd, unshared_buf_handle, 0, (void*)&value, 4);
- igt_assert(value == data);
-
- gem_close(fd, batch_buf_handle);
- gem_close(fd, unshared_buf_handle);
- close(fd);
-}
-
-
-/* gem_multiple_process_test
- * Run basic test simultaneously with multiple processes
- * This will test pinning same VA separately in each process
-
- * fork();
- * Execute basic test in parent/child processes
-*/
-#define MAX_NUM_PROCESSES 10
-
-static void gem_multiple_process_test(void)
-{
- int fd;
-
- fd = drm_open_driver(DRIVER_INTEL);
- igt_require(uses_full_ppgtt(fd, ALIASING_PPGTT));
- igt_require(has_softpin_support(fd));
+ struct drm_i915_gem_exec_object2 object;
+ uint64_t offset, end;
+ int loop;
+
+ memset(&execbuf, 0, sizeof(execbuf));
+ execbuf.buffers_ptr = (unsigned long)&object;
+ execbuf.buffer_count = 1;
+ for (loop = 0; loop < 1024; loop++) {
+ memset(&object, 0, sizeof(object));
+ object.handle = gem_create(fd, 2*size);
+ gem_write(fd, object.handle, 0, &bbe, sizeof(bbe));
+
+ /* Find a hole */
+ gem_execbuf(fd, &execbuf);
+ gem_close(fd, object.handle);
+
+ igt_debug("Made a 2 MiB hole: %08llx\n",
+ object.offset);
+
+ object.handle = gem_create(fd, size);
+ gem_write(fd, object.handle, 0, &bbe, sizeof(bbe));
+ object.flags |= EXEC_OBJECT_PINNED;
+
+ end = object.offset + size;
+ for (offset = object.offset; offset <= end; offset += 4096) {
+ object.offset = offset;
+ gem_execbuf(fd, &execbuf);
+ igt_assert_eq_u64(object.offset, offset);
+ }
- igt_fork(child, MAX_NUM_PROCESSES) {
- gem_pin_userptr_test();
+ gem_close(fd, object.handle);
}
- igt_waitchildren();
-
- close(fd);
-}
-
-
-/* gem_repin_test
- * This test tries to repin a buffer at a previously pinned vma
- * from a different execbuf.
- * Malloc a 4K buffer
- * Share buffer with with GPU by using userptr ioctl
- * Create batch buffer to write DATA to first dword of buffer
- * Use 0x1000 address as destination address in batch buffer
- * Set EXEC_OBJECT_PINNED flag in exec object
- * Set 'offset' in exec object to 0x1000 VMA
- * Submit execbuffer
- * Verify value of first DWORD in shared buffer matches DATA
-
- * Create second shared buffer
- * Follow all steps above
- * Execpt, for offset, use VMA of first buffer above
- * Submit execbuffer
- * Verify value of first DWORD in second shared buffer matches DATA
-*/
-static void gem_repin_test(void)
-{
- i915_gem_userptr userptr;
- i915_gem_userptr userptr1;
- int fd;
- uint32_t *shared_buffer;
- uint32_t *shared_buffer1;
- struct drm_i915_gem_execbuffer2 execbuf;
- struct drm_i915_gem_exec_object2 exec_object2[2];
- uint32_t batch_buffer[STORE_BATCH_BUFFER_SIZE + 2];
- uint32_t batch_buf_handle, shared_buf_handle, shared_buf_handle1;
- int ring, len;
- const uint32_t data = 0x12345678;
- uint64_t pinning_offset = 0x1000;
-
- /* Create gem object */
- fd = drm_open_driver(DRIVER_INTEL);
- igt_require(uses_full_ppgtt(fd, ALIASING_PPGTT));
- igt_require(has_softpin_support(fd));
-
- batch_buf_handle = gem_create(fd, BO_SIZE);
-
- /* create cpu buffer, set first elements to 0x0 */
- shared_buffer = create_mem_buffer(BO_SIZE);
- shared_buffer1 = create_mem_buffer(BO_SIZE);
- shared_buffer[0] = 0x0;
- shared_buffer1[0] = 0x0;
-
- /* share with GPU and get handles */
- shared_buf_handle = init_userptr(fd, &userptr, shared_buffer,
- BO_SIZE);
- shared_buf_handle1 = init_userptr(fd, &userptr1, shared_buffer1,
- BO_SIZE);
-
- /* create command buffer with write command */
- len = gem_store_data_svm(fd, batch_buffer, pinning_offset, data, true);
- gem_write(fd, batch_buf_handle, 0, batch_buffer, len);
-
- /* submit command buffer */
- setup_exec_obj(&exec_object2[0], shared_buf_handle,
- EXEC_OBJECT_PINNED, pinning_offset);
- setup_exec_obj(&exec_object2[1], batch_buf_handle, 0, 0);
-
- ring = I915_EXEC_RENDER;
-
- setup_execbuffer(&execbuf, exec_object2, ring, 2, len);
- submit_and_sync(fd, &execbuf, batch_buf_handle);
- gem_userptr_sync(fd, shared_buf_handle);
-
- igt_assert(exec_object2[0].offset == pinning_offset);
- igt_assert(*shared_buffer == data);
-
- /* Second buffer */
- /* create command buffer with write command */
- pinning_offset = exec_object2[0].offset;
- len = gem_store_data_svm(fd, batch_buffer, pinning_offset, data, true);
- gem_write(fd, batch_buf_handle, 0, batch_buffer, len);
-
- /* submit command buffer */
- /* Pin at shared_buffer, not shared_buffer1 */
- /* We are requesting address where another buffer was pinned previously */
- setup_exec_obj(&exec_object2[0], shared_buf_handle1,
- EXEC_OBJECT_PINNED, pinning_offset);
- setup_exec_obj(&exec_object2[1], batch_buf_handle, 0, 0);
-
- ring = I915_EXEC_RENDER;
-
- setup_execbuffer(&execbuf, exec_object2, ring, 2, len);
- submit_and_sync(fd, &execbuf, batch_buf_handle);
- gem_userptr_sync(fd, shared_buf_handle1);
-
- igt_assert(exec_object2[0].offset == pinning_offset);
- igt_assert(*shared_buffer1 == data);
-
- gem_close(fd, batch_buf_handle);
- gem_close(fd, shared_buf_handle);
- close(fd);
-
- free(shared_buffer);
- free(shared_buffer1);
}
-
-/* gem_repin_overlap_test
- * This test will attempt to pin two buffers at the same VMA as part of the same
- execbuffer object
-
- * Malloc a 4K buffer
- * Share buffer with with GPU by using userptr ioctl
- * Create second shared buffer
- * Create batch buffer to write DATA to first dword of each buffer
- * Use same virtual address as destination addresses in batch buffer
- * Set EXEC_OBJECT_PINNED flag in both exec objects
- * Set 'offset' in both exec objects to same VMA
- * Submit execbuffer
- * Command should return EINVAL, since we are trying to pin to same VMA
-*/
-static void gem_pin_overlap_test(void)
+static void test_overlap(int fd)
{
- i915_gem_userptr userptr;
- i915_gem_userptr userptr1;
- int fd, ret;
- uint32_t *shared_buffer;
- uint32_t *shared_buffer1;
+ const uint32_t size = 1024 * 1024;
+ const uint32_t bbe = MI_BATCH_BUFFER_END;
struct drm_i915_gem_execbuffer2 execbuf;
- struct drm_i915_gem_exec_object2 exec_object2[3];
- uint32_t shared_buf_handle, shared_buf_handle1;
- int ring, len;
- uint64_t pinning_offset = 0x1000;
-
- fd = drm_open_driver(DRIVER_INTEL);
- igt_require(uses_full_ppgtt(fd, ALIASING_PPGTT));
- igt_require(has_softpin_support(fd));
-
- shared_buffer = create_mem_buffer(BO_SIZE);
- shared_buffer1 = create_mem_buffer(BO_SIZE * 2);
-
- /* share with GPU */
- shared_buf_handle = init_userptr(fd, &userptr, shared_buffer,
- BO_SIZE);
- shared_buf_handle1 = init_userptr(fd, &userptr1, shared_buffer1,
- BO_SIZE * 2);
-
- /* submit command buffer */
- setup_exec_obj(&exec_object2[0], shared_buf_handle,
- EXEC_OBJECT_PINNED, pinning_offset);
- setup_exec_obj(&exec_object2[1], shared_buf_handle1,
- EXEC_OBJECT_PINNED, pinning_offset);
-
- ring = I915_EXEC_RENDER;
-
- setup_execbuffer(&execbuf, exec_object2, ring, 2, len);
-
- ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf);
-
- /* expect to fail */
- igt_assert_neq(ret, 0);
- igt_assert(errno == EINVAL);
+ struct drm_i915_gem_exec_object2 object[2];
+ uint64_t offset;
+ uint32_t handle;
+
+ handle = gem_create(fd, 3*size);
+ gem_write(fd, handle, 0, &bbe, sizeof(bbe));
+
+ memset(object, 0, sizeof(object));
+ object[0].handle = handle;
+
+ /* Find a hole */
+ memset(&execbuf, 0, sizeof(execbuf));
+ execbuf.buffers_ptr = (unsigned long)object;
+ execbuf.buffer_count = 1;
+ gem_execbuf(fd, &execbuf);
+
+ igt_debug("Made a 3x1 MiB hole: %08llx\n",
+ object[0].offset);
+
+ object[0].handle = gem_create(fd, size);
+ object[0].offset += size;
+ object[0].flags |= EXEC_OBJECT_PINNED;
+ object[1].handle = gem_create(fd, size);
+ object[1].flags |= EXEC_OBJECT_PINNED;
+ gem_write(fd, object[1].handle, 0, &bbe, sizeof(bbe));
+ execbuf.buffer_count = 2;
+
+ /* Check that we fit into our hole */
+ object[1].offset = object[0].offset - size;
+ gem_execbuf(fd, &execbuf);
+ igt_assert_eq_u64(object[1].offset + size, object[0].offset);
+
+ object[1].offset = object[0].offset + size;
+ gem_execbuf(fd, &execbuf);
+ igt_assert_eq_u64(object[1].offset - size, object[0].offset);
+
+ /* Try all possible page-aligned overlaps */
+ for (offset = object[0].offset - size + 4096;
+ offset < object[0].offset + size;
+ offset += 4096) {
+ object[1].offset = offset;
+ igt_debug("[0]=[%08llx - %08llx] [1]=[%08llx - %08llx]\n",
+ (long long)object[0].offset,
+ (long long)object[0].offset + size,
+ (long long)object[1].offset,
+ (long long)object[1].offset + size);
+ igt_assert_eq(__gem_execbuf(fd, &execbuf), -EINVAL);
+ igt_assert_eq_u64(object[1].offset, offset);
+ }
- close(fd);
- free(shared_buffer);
- free(shared_buffer1);
+ gem_close(fd, object[1].handle);
+ gem_close(fd, object[0].handle);
+ gem_close(fd, handle);
}
-/* gem_softpin_stress_test
- * Stress test which creates 10K buffers and shares with GPU
- * Create 100K uint32 buffers of size 4K each
- * Share with GPU using userptr ioctl
- * Create batch buffer to write DATA in first element of each buffer
- * Pin each buffer to varying addresses starting from 0x800000000000 going below
- * (requires offsets in canonical form)
- * Execute Batch Buffer on Blit ring STRESS_NUM_LOOPS times
- * Validate every buffer has DATA in first element
- * Rinse and Repeat on Render ring
-*/
-#define STRESS_NUM_BUFFERS 100000
-#define STRESS_NUM_LOOPS 100
-#define STRESS_STORE_COMMANDS 4 * STRESS_NUM_BUFFERS
-#define STRESS_START_ADDRESS 0x800000000000
-static void gem_softpin_stress_test(void)
+static uint64_t busy_batch(int fd)
{
- i915_gem_userptr userptr;
- int fd;
- uint32_t **shared_buffer;
- uint32_t *shared_handle;
+ const int gen = intel_gen(intel_get_drm_devid(fd));
+ const int has_64bit_reloc = gen >= 8;
struct drm_i915_gem_execbuffer2 execbuf;
- struct drm_i915_gem_exec_object2 *exec_object2;
- uint32_t *batch_buffer;
- uint32_t batch_buf_handle;
- int ring, len;
- int buf, loop;
- uint64_t pinning_offset = STRESS_START_ADDRESS;
-
- fd = drm_open_driver(DRIVER_INTEL);
- igt_require(uses_full_ppgtt(fd, FULL_48_BIT_PPGTT));
- igt_require(has_softpin_support(fd));
-
-
- /* Allocate blobs for all data structures */
- shared_handle = calloc(STRESS_NUM_BUFFERS, sizeof(uint32_t));
- shared_buffer = calloc(STRESS_NUM_BUFFERS, sizeof(uint32_t *));
- exec_object2 = calloc(STRESS_NUM_BUFFERS + 1,
- sizeof(struct drm_i915_gem_exec_object2));
- /* 4 dwords per buffer + 2 for the end of batchbuffer */
- batch_buffer = calloc(STRESS_STORE_COMMANDS + 2, sizeof(uint32_t));
- batch_buf_handle = gem_create(fd, (STRESS_STORE_COMMANDS + 2)*4);
-
- /* create command buffer with write commands */
- len = 0;
- for(buf = 0; buf < STRESS_NUM_BUFFERS; buf++) {
- shared_buffer[buf] = create_mem_buffer(BO_SIZE);
- *shared_buffer[buf] = 0xFFFFFFFF;
-
- /* share with GPU */
- shared_handle[buf] = init_userptr(fd, &userptr,
- shared_buffer[buf],
- BO_SIZE);
-
- setup_exec_obj(&exec_object2[buf], shared_handle[buf],
- EXEC_OBJECT_PINNED |
- EXEC_OBJECT_SUPPORTS_48B_ADDRESS,
- gen8_canonical_addr(pinning_offset));
- len += gem_store_data_svm(fd, batch_buffer + (len/4),
- gen8_canonical_addr(pinning_offset),
- buf, (buf == STRESS_NUM_BUFFERS-1)? \
- true:false);
-
- /* decremental 4K aligned address */
- pinning_offset -= ALIGN(BO_SIZE, 4096);
- }
+ struct drm_i915_gem_exec_object2 object[2];
+ uint32_t *map;
+ int factor = 10;
+ int i = 0;
- /* setup command buffer */
- gem_write(fd, batch_buf_handle, 0, batch_buffer, len);
- setup_exec_obj(&exec_object2[STRESS_NUM_BUFFERS], batch_buf_handle,
- 0, 0);
-
- /* We want to run this on BLT ring if possible */
- if (HAS_BLT_RING(intel_get_drm_devid(fd))) {
- ring = I915_EXEC_BLT;
-
- setup_execbuffer(&execbuf, exec_object2, ring,
- STRESS_NUM_BUFFERS + 1, len);
-
- for (loop = 0; loop < STRESS_NUM_LOOPS; loop++) {
- submit_and_sync(fd, &execbuf, batch_buf_handle);
- /* Set pinning offset back to original value */
- pinning_offset = STRESS_START_ADDRESS;
- for(buf = 0; buf < STRESS_NUM_BUFFERS; buf++) {
- gem_userptr_sync(fd, shared_handle[buf]);
- igt_assert(exec_object2[buf].offset ==
- gen8_canonical_addr(pinning_offset));
- igt_fail_on_f(*shared_buffer[buf] != buf, \
- "Mismatch in buffer %d, iteration %d: 0x%08X\n", \
- buf, loop, *shared_buffer[buf]);
- pinning_offset -= ALIGN(BO_SIZE, 4096);
- }
- /* Reset the buffer entries for next iteration */
- for(buf = 0; buf < STRESS_NUM_BUFFERS; buf++) {
- *shared_buffer[buf] = 0xFFFFFFFF;
- }
- }
+ memset(object, 0, sizeof(object));
+ object[0].handle = gem_create(fd, 1024*1024);
+ object[1].handle = gem_create(fd, 4096);
+ map = gem_mmap__cpu(fd, object[1].handle, 0, 4096, PROT_WRITE);
+ gem_set_domain(fd, object[1].handle,
+ I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
+
+ *map = MI_BATCH_BUFFER_END;
+
+ memset(&execbuf, 0, sizeof(execbuf));
+ execbuf.buffers_ptr = (unsigned long)object;
+ execbuf.buffer_count = 2;
+ if (gen >= 6)
+ execbuf.flags = I915_EXEC_BLT;
+ gem_execbuf(fd, &execbuf);
+
+ igt_debug("Active offsets = [%08llx, %08llx]\n",
+ object[0].offset, object[1].offset);
+
+#define COPY_BLT_CMD (2<<29|0x53<<22|0x6)
+#define BLT_WRITE_ALPHA (1<<21)
+#define BLT_WRITE_RGB (1<<20)
+ gem_set_domain(fd, object[1].handle,
+ I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
+ while (factor--) {
+ /* XY_SRC_COPY */
+ map[i++] = COPY_BLT_CMD | BLT_WRITE_ALPHA | BLT_WRITE_RGB;
+ if (has_64bit_reloc)
+ map[i-1] += 2;
+ map[i++] = 0xcc << 16 | 1 << 25 | 1 << 24 | (4*1024);
+ map[i++] = 0;
+ map[i++] = 256 << 16 | 1024;
+ map[i++] = object[0].offset;
+ if (has_64bit_reloc)
+ map[i++] = object[0].offset >> 32;
+ map[i++] = 0;
+ map[i++] = 4096;
+ map[i++] = object[0].offset;
+ if (has_64bit_reloc)
+ map[i++] = object[0].offset >> 32;
}
+ map[i++] = MI_BATCH_BUFFER_END;
+ munmap(map, 4096);
- /* Now Render Ring */
- ring = I915_EXEC_RENDER;
- setup_execbuffer(&execbuf, exec_object2, ring,
- STRESS_NUM_BUFFERS + 1, len);
- for (loop = 0; loop < STRESS_NUM_LOOPS; loop++) {
- submit_and_sync(fd, &execbuf, batch_buf_handle);
- pinning_offset = STRESS_START_ADDRESS;
- for(buf = 0; buf < STRESS_NUM_BUFFERS; buf++) {
- gem_userptr_sync(fd, shared_handle[buf]);
- igt_assert(exec_object2[buf].offset ==
- gen8_canonical_addr(pinning_offset));
- igt_fail_on_f(*shared_buffer[buf] != buf, \
- "Mismatch in buffer %d, \
- iteration %d: 0x%08X\n", buf, loop, *shared_buffer[buf]);
- pinning_offset -= ALIGN(BO_SIZE, 4096);
- }
- /* Reset the buffer entries for next iteration */
- for(buf = 0; buf < STRESS_NUM_BUFFERS; buf++) {
- *shared_buffer[buf] = 0xFFFFFFFF;
- }
- }
-
- for(buf = 0; buf < STRESS_NUM_BUFFERS; buf++) {
- gem_close(fd, shared_handle[buf]);
- free(shared_buffer[buf]);
- }
- gem_close(fd, batch_buf_handle);
- close(fd);
+ object[0].flags = EXEC_OBJECT_PINNED | EXEC_OBJECT_WRITE;
+ object[1].flags = EXEC_OBJECT_PINNED;
+ gem_execbuf(fd, &execbuf);
+ gem_close(fd, object[0].handle);
+ gem_close(fd, object[1].handle);
- free(shared_handle);
- free(shared_buffer);
- free(exec_object2);
- free(batch_buffer);
+ return object[1].offset;
}
-/* gem_write_multipage_buffer
- * Create a buffer spanning multiple pages, and share with GPU.
- * Write to every element of the buffer
- * and verify correct contents.
-
- * Create 8K buffer
- * Share with GPU using userptr ioctl
- * Create batch buffer to write DATA in all elements of buffer
- * Execute Batch Buffer
- * Validate every element has DATA
-*/
-
-#define DWORD_SIZE sizeof(uint32_t)
-#define BB_SIZE ((MULTIPAGE_BO_SIZE / DWORD_SIZE) * STORE_BATCH_BUFFER_SIZE) + 2
-#define NUM_DWORDS (MULTIPAGE_BO_SIZE/sizeof(uint32_t))
-static void gem_write_multipage_buffer_test(void)
+static void test_evict_active(int fd)
{
- i915_gem_userptr userptr;
- int fd;
- uint32_t *shared_buffer;
- uint32_t shared_handle;
+ const uint32_t bbe = MI_BATCH_BUFFER_END;
struct drm_i915_gem_execbuffer2 execbuf;
- struct drm_i915_gem_exec_object2 exec_object2[2];
- uint32_t batch_buffer[BB_SIZE];
- uint32_t batch_buf_handle;
- int ring, len, j;
- uint64_t pinning_offset=0x1000;
- uint64_t vaddr;
-
- fd = drm_open_driver(DRIVER_INTEL);
- igt_require(uses_full_ppgtt(fd, ALIASING_PPGTT));
- igt_require(has_softpin_support(fd));
-
- batch_buf_handle = gem_create(fd, sizeof(batch_buffer));
- shared_buffer = create_mem_buffer(MULTIPAGE_BO_SIZE);
-
- len = 0;
- memset(batch_buffer, 0, sizeof(batch_buffer));
- memset(shared_buffer, 0, MULTIPAGE_BO_SIZE);
-
- /* share with GPU */
- shared_handle = init_userptr(fd, &userptr, shared_buffer,
- MULTIPAGE_BO_SIZE);
- setup_exec_obj(&exec_object2[0], shared_handle,
- EXEC_OBJECT_PINNED, pinning_offset);
-
- /* create command buffer with write commands */
- vaddr = pinning_offset;
- for(j=0; j< NUM_DWORDS; j++) {
- len += gem_store_data_svm(fd, batch_buffer + (len/4), vaddr,
- j,
- (j == NUM_DWORDS - 1) ? true:false);
- vaddr += sizeof(shared_buffer[0]); /* 4 bytes */
- }
+ struct drm_i915_gem_exec_object2 object;
+ uint64_t expected;
- gem_write(fd, batch_buf_handle, 0, batch_buffer, len);
+ memset(&object, 0, sizeof(object));
+ object.handle = gem_create(fd, 4096);
+ gem_write(fd, object.handle, 0, &bbe, sizeof(bbe));
- /* submit command buffer */
- setup_exec_obj(&exec_object2[1], batch_buf_handle, 0, 0);
+ expected = busy_batch(fd);
+ object.offset = expected;
+ object.flags = EXEC_OBJECT_PINNED;
- ring = I915_EXEC_RENDER;
- setup_execbuffer(&execbuf, exec_object2, ring, 2, len);
- submit_and_sync(fd, &execbuf, batch_buf_handle);
- gem_userptr_sync(fd, shared_handle);
-
- igt_assert(exec_object2[0].offset == pinning_offset);
- for(j = 0; j < (MULTIPAGE_BO_SIZE/sizeof(uint32_t)); j++) {
- igt_fail_on_f(shared_buffer[j] != j,
- "Mismatch in index %d: 0x%08X\n", j, shared_buffer[j]);
- }
+ /* Replace the active batch with ourselves, forcing an eviction */
+ memset(&execbuf, 0, sizeof(execbuf));
+ execbuf.buffers_ptr = (unsigned long)&object;
+ execbuf.buffer_count = 1;
- gem_close(fd, batch_buf_handle);
- gem_close(fd, shared_handle);
- close(fd);
+ gem_execbuf(fd, &execbuf);
+ gem_close(fd, object.handle);
- free(shared_buffer);
+ igt_assert_eq_u64(object.offset, expected);
}
-/* gem_pin_invalid_vma_test
- * This test will request to pin a shared buffer to an invalid
- * VMA > 48-bit address if system supports 48B PPGTT; it also
- * will test that any attempt of using a 48-bit address requires
- * the SUPPORTS_48B_ADDRESS flag, and that 48-bit address need to be
- * in canonical form (bits [63:48] == [47]).
- * If system supports 32B PPGTT, it will test the equivalent invalid VMA
- * Create shared buffer of size 4K
- * Try and Pin object to invalid address
-*/
-static void gem_pin_invalid_vma_test(bool test_decouple_flags,
- bool test_canonical_offset)
+static void test_evict_hang(int fd)
{
- i915_gem_userptr userptr;
- int fd, ret;
- uint32_t *shared_buffer;
+ const uint32_t bbe = MI_BATCH_BUFFER_END;
struct drm_i915_gem_execbuffer2 execbuf;
- struct drm_i915_gem_exec_object2 exec_object2[1];
- uint32_t shared_buf_handle;
- int ring;
- uint64_t invalid_address_for_48b = 0x9000000000000; /* 52 bit address */
- uint64_t noncanonical_address_for_48b = 0xFF0000000000; /* 48 bit address in noncanonical form */
- uint64_t invalid_address_for_32b = 0x900000000; /* 36 bit address */
-
- fd = drm_open_driver(DRIVER_INTEL);
- igt_require(uses_full_ppgtt(fd, FULL_48_BIT_PPGTT) ||
- uses_full_ppgtt(fd, FULL_32_BIT_PPGTT));
- igt_require(has_softpin_support(fd));
-
- shared_buffer = create_mem_buffer(BO_SIZE);
- *shared_buffer = 0xFFFFFFFF;
-
- /* share with GPU */
- shared_buf_handle = init_userptr(fd, &userptr, shared_buffer, BO_SIZE);
-
- if (uses_full_ppgtt(fd, FULL_48_BIT_PPGTT) && test_canonical_offset) {
- setup_exec_obj(&exec_object2[0], shared_buf_handle,
- EXEC_OBJECT_PINNED | EXEC_OBJECT_SUPPORTS_48B_ADDRESS,
- noncanonical_address_for_48b);
- } else if (uses_full_ppgtt(fd, FULL_48_BIT_PPGTT) && !test_decouple_flags) {
- setup_exec_obj(&exec_object2[0], shared_buf_handle,
- EXEC_OBJECT_PINNED | EXEC_OBJECT_SUPPORTS_48B_ADDRESS,
- invalid_address_for_48b);
- } else {
- /* This also fails in 48b without 48B_ADDRESS support flag */
- setup_exec_obj(&exec_object2[0], shared_buf_handle,
- EXEC_OBJECT_PINNED, invalid_address_for_32b);
- }
-
- ring = I915_EXEC_RENDER;
-
- setup_execbuffer(&execbuf, exec_object2, ring, 1, 0);
+ struct drm_i915_gem_exec_object2 object;
+ uint64_t expected;
+ igt_hang_ring_t hang;
- /* Expect execbuf to fail */
- ret = drmIoctl(fd,
- DRM_IOCTL_I915_GEM_EXECBUFFER2,
- &execbuf);
+ memset(&object, 0, sizeof(object));
+ object.handle = gem_create(fd, 4096);
+ gem_write(fd, object.handle, 0, &bbe, sizeof(bbe));
- igt_assert(errno == EINVAL);
- igt_assert_neq(ret, 0);
+ hang = igt_hang_ctx(fd, 0, 0, 0, (uint64_t *)&expected);
+ object.offset = expected;
+ object.flags = EXEC_OBJECT_PINNED;
- gem_close(fd, shared_buf_handle);
- close(fd);
- free(shared_buffer);
-}
+ /* Replace the hanging batch with ourselves, forcing an eviction */
+ memset(&execbuf, 0, sizeof(execbuf));
+ execbuf.buffers_ptr = (unsigned long)&object;
+ execbuf.buffer_count = 1;
+ gem_execbuf(fd, &execbuf);
+ gem_close(fd, object.handle);
-/* gem_pin_high_address_test
- * This test will create a shared buffer, and create a command
- * for GPU to write data in it. It will attempt to pin the buffer at address > 32 bits.
- * CPU will read and make sure expected value is obtained
+ igt_assert_eq_u64(object.offset, expected);
- * Malloc a 4K buffer
- * Share buffer with with GPU by using userptr ioctl
- * Create batch buffer to write DATA to first dword of buffer
- * Use virtual address of buffer as 0x1100000000 (> 32 bit)
- * Set EXEC_OBJECT_PINNED flag in exec object
- * Set 'offset' in exec object to shared buffer VMA
- * Submit execbuffer
- * Verify value of first DWORD in shared buffer matches DATA
-*/
+ igt_post_hang_ring(fd, hang);
+}
-static void gem_pin_high_address_test(void)
+static void xchg_offset(void *array, unsigned i, unsigned j)
{
- i915_gem_userptr userptr;
- int fd;
- uint32_t *shared_buffer;
- struct drm_i915_gem_execbuffer2 execbuf;
- struct drm_i915_gem_exec_object2 exec_object2[2];
- uint32_t batch_buffer[STORE_BATCH_BUFFER_SIZE + 2];
- uint32_t batch_buf_handle, shared_buf_handle;
- int ring, len;
- const uint32_t data = 0x12345678;
- uint64_t high_address = 0x1111FFFF000; /* 44 bit address */
-
- fd = drm_open_driver(DRIVER_INTEL);
- igt_require(uses_full_ppgtt(fd, FULL_48_BIT_PPGTT));
- igt_require(has_softpin_support(fd));
-
- batch_buf_handle = gem_create(fd, BO_SIZE);
-
- /* create cpu buffer, set to all 0xF's */
- shared_buffer = create_mem_buffer(BO_SIZE);
- *shared_buffer = 0xFFFFFFFF;
-
- /* share with GPU */
- shared_buf_handle = init_userptr(fd, &userptr, shared_buffer, BO_SIZE);
-
- /* create command buffer with write command */
- len = gem_store_data_svm(fd, batch_buffer, high_address, data, true);
- gem_write(fd, batch_buf_handle, 0, batch_buffer, len);
-
- /* submit command buffer */
- setup_exec_obj(&exec_object2[0], shared_buf_handle,
- EXEC_OBJECT_PINNED | EXEC_OBJECT_SUPPORTS_48B_ADDRESS, high_address);
- setup_exec_obj(&exec_object2[1], batch_buf_handle, 0, 0);
-
- ring = I915_EXEC_RENDER;
-
- setup_execbuffer(&execbuf, exec_object2, ring, 2, len);
- submit_and_sync(fd, &execbuf, batch_buf_handle);
- gem_userptr_sync(fd, shared_buf_handle);
-
- igt_assert(exec_object2[0].offset == high_address);
- /* check on CPU to see if value changes */
- igt_fail_on_f(shared_buffer[0] != data,
- "\nCPU read does not match GPU write, \
- expected: 0x%x, got: 0x%x\n", data, shared_buffer[0]);
-
- gem_close(fd, batch_buf_handle);
- gem_close(fd, shared_buf_handle);
- close(fd);
- free(shared_buffer);
+ struct drm_i915_gem_exec_object2 *object = array;
+ uint64_t tmp = object[i].offset;
+ object[i].offset = object[j].offset;
+ object[j].offset = tmp;
}
-/* gem_pin_near_48Bit_test
- * This test will create a shared buffer,
- * and create a command for GPU to write data in it. It will attempt
- * to pin the buffer at address > 47 bits <= 48-bit.
- * CPU will read and make sure expected value is obtained.
- * Note that we must submit addresses in canonical form, not only
- * because the addresss will be validated, but also the returned offset
- * will be in this format.
-
- * Malloc a 4K buffer
- * Share buffer with with GPU by using userptr ioctl
- * Create batch buffer to write DATA to first dword of buffer
- * Use virtual address of buffer as range between 47-bit and 48-bit
- * Set EXEC_OBJECT_PINNED flag in exec object
- * Set 'offset' in exec object to shared buffer VMA
- * Submit execbuffer
- * Verify value of first DWORD in shared buffer matches DATA
-*/
-#define BEGIN_HIGH_ADDRESS 0x7FFFFFFFF000
-#define END_HIGH_ADDRESS 0xFFFFFFFFC000
-#define ADDRESS_INCREMENT 0x2000000000
-static void gem_pin_near_48Bit_test(void)
+static void test_noreloc(int fd)
{
- i915_gem_userptr userptr;
- int fd;
- uint32_t *shared_buffer;
+ const int gen = intel_gen(intel_get_drm_devid(fd));
+ const uint32_t size = 4096;
+ const uint32_t bbe = MI_BATCH_BUFFER_END;
struct drm_i915_gem_execbuffer2 execbuf;
- struct drm_i915_gem_exec_object2 exec_object2[2];
- uint32_t batch_buffer[BO_SIZE];
- uint32_t batch_buf_handle, shared_buf_handle;
- int ring, len;
- const uint32_t data = 0x12345678;
- uint64_t high_address, can_high_address;
-
- fd = drm_open_driver(DRIVER_INTEL);
- igt_require(uses_full_ppgtt(fd, FULL_48_BIT_PPGTT));
- igt_require(has_softpin_support(fd));
-
- batch_buf_handle = gem_create(fd, BO_SIZE);
-
- /* create cpu buffer, set to all 0xF's */
- shared_buffer = create_mem_buffer(BO_SIZE);
- *shared_buffer = 0xFFFFFFFF;
-
- /* share with GPU */
- shared_buf_handle = init_userptr(fd, &userptr, shared_buffer, BO_SIZE);
-
- for (high_address = BEGIN_HIGH_ADDRESS; high_address <= END_HIGH_ADDRESS;
- high_address+=ADDRESS_INCREMENT) {
- can_high_address = gen8_canonical_addr(high_address);
- /* create command buffer with write command */
- len = gem_store_data_svm(fd, batch_buffer, can_high_address,
- data, true);
- gem_write(fd, batch_buf_handle, 0, batch_buffer, len);
- /* submit command buffer */
- setup_exec_obj(&exec_object2[0], shared_buf_handle,
- EXEC_OBJECT_PINNED | EXEC_OBJECT_SUPPORTS_48B_ADDRESS,
- can_high_address);
- setup_exec_obj(&exec_object2[1], batch_buf_handle, 0, 0);
-
- ring = I915_EXEC_RENDER;
- setup_execbuffer(&execbuf, exec_object2, ring, 2, len);
- submit_and_sync(fd, &execbuf, batch_buf_handle);
- gem_userptr_sync(fd, shared_buf_handle);
-
- igt_assert(exec_object2[0].offset == can_high_address);
- /* check on CPU to see if value changes */
- igt_fail_on_f(shared_buffer[0] != data,
- "\nCPU read does not match GPU write, expected: 0x%x, \
- got: 0x%x\n, 0x%"PRIx64"", data, shared_buffer[0], high_address);
+ struct drm_i915_gem_exec_object2 object[257];
+ uint64_t offset;
+ uint32_t handle;
+ uint32_t *batch, *b;
+ int i, loop;
+
+ handle = gem_create(fd, (ARRAY_SIZE(object)+1)*size);
+ gem_write(fd, handle, 0, &bbe, sizeof(bbe));
+
+ memset(object, 0, sizeof(object));
+ object[0].handle = handle;
+
+ /* Find a hole */
+ memset(&execbuf, 0, sizeof(execbuf));
+ execbuf.buffers_ptr = (unsigned long)object;
+ execbuf.buffer_count = 1;
+ gem_execbuf(fd, &execbuf);
+ gem_close(fd, object[0].handle);
+
+ igt_debug("Made a %dx%d KiB hole: %08llx\n",
+ (int)ARRAY_SIZE(object), size/1024, object[0].offset);
+
+ offset = object[0].offset;
+ for (i = 0; i < ARRAY_SIZE(object) - 1; i++) {
+ object[i].handle = gem_create(fd, size);
+ object[i].offset = offset + i*size;
+ object[i].flags = EXEC_OBJECT_PINNED | EXEC_OBJECT_WRITE;
}
+ object[i].handle = gem_create(fd, 2*size);
+ object[i].offset = offset + i*size;
+ object[i].flags = EXEC_OBJECT_PINNED;
+
+ b = batch = gem_mmap__cpu(fd, object[i].handle, 0, 2*size, PROT_WRITE);
+ gem_set_domain(fd, object[i].handle,
+ I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
+ for (i = 0; i < ARRAY_SIZE(object) - 1; i++) {
+ *b++ = MI_STORE_DWORD_IMM;
+ if (gen < 8) {
+ *b++ = 0;
+ *b++ = object[i].offset;
+ } else {
+ *b++ = object[i].offset;
+ *b++ = object[i].offset >> 32;
+ }
+ *b++ = i;
+ }
+ *b++ = MI_BATCH_BUFFER_END;
+ igt_assert(b - batch <= 2*size/sizeof(uint32_t));
+ munmap(batch, size);
- gem_close(fd, batch_buf_handle);
- gem_close(fd, shared_buf_handle);
- close(fd);
- free(shared_buffer);
-}
+ execbuf.buffer_count = ARRAY_SIZE(object);
+ for (loop = 0; loop < 1024; loop++) {
+ igt_permute_array(object, ARRAY_SIZE(object)-1, xchg_offset);
+ gem_execbuf(fd, &execbuf);
+ for (i = 0; i < ARRAY_SIZE(object) - 1; i++) {
+ uint32_t val;
-int main(int argc, char* argv[])
-{
- igt_subtest_init(argc, argv);
- igt_skip_on_simulation();
-
- /* All tests need PPGTT support */
- igt_subtest("gem_pin_userptr") {
- gem_pin_userptr_test();
- }
- igt_subtest("gem_pin_bo") {
- gem_pin_bo_test();
- }
- igt_subtest("gem_multiple_process") {
- gem_multiple_process_test();
- }
- igt_subtest("gem_repin") {
- gem_repin_test();
- }
- igt_subtest("gem_pin_overlap") {
- gem_pin_overlap_test();
- }
- igt_subtest("gem_write_multipage_buffer") {
- gem_write_multipage_buffer_test();
+ gem_read(fd, object[i].handle, 0, &val, sizeof(val));
+ igt_assert_eq(val, (object[i].offset - offset)/ size);
+ }
}
+ for (i = 0; i < ARRAY_SIZE(object); i++)
+ gem_close(fd, object[i].handle);
+}
- /* Following tests need 32/48 Bit PPGTT support */
- igt_subtest("gem_pin_invalid_vma") {
- gem_pin_invalid_vma_test(false, false);
- }
+igt_main
+{
+ int fd = -1;
- /* Following tests need 48 Bit PPGTT support */
- igt_subtest("gen_pin_noncanonical_high_address") {
- gem_pin_invalid_vma_test(false, true);
- }
- igt_subtest("gem_pin_high_address_without_correct_flag") {
- gem_pin_invalid_vma_test(true, false);
- }
- igt_subtest("gem_softpin_stress") {
- gem_softpin_stress_test();
- }
- igt_subtest("gem_pin_high_address") {
- gem_pin_high_address_test();
- }
- igt_subtest("gem_pin_near_48Bit") {
- gem_pin_near_48Bit_test();
+ igt_skip_on_simulation();
+
+ igt_fixture {
+ fd = drm_open_driver(DRIVER_INTEL);
+ igt_require(has_softpin_support(fd));
}
- igt_exit();
+ igt_subtest("invalid")
+ test_invalid(fd);
+ igt_subtest("softpin")
+ test_softpin(fd);
+ igt_subtest("overlap")
+ test_overlap(fd);
+ igt_subtest("noreloc")
+ test_noreloc(fd);
+ igt_subtest("evict-active")
+ test_evict_active(fd);
+ igt_subtest("evict-hang")
+ test_evict_hang(fd);
+
+ igt_fixture
+ close(fd);
}
--
2.7.0.rc3
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