-----Original Message----- From: Thierry, Michel Sent: Tuesday, January 5, 2016 10:02 AM To: Belgaumkar, Vinay Subject: RE: [PATCH i-g-t] tests/gem_softpin: Use offset addresses in canonical form > -----Original Message----- > From: Intel-gfx [mailto:intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf > Of Michel Thierry > Sent: Friday, December 11, 2015 2:14 PM > To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx > Subject: [PATCH i-g-t] tests/gem_softpin: Use offset addresses > in > canonical form > > i915 validates that requested offset is in canonical form, so tests need > to convert the offsets as required. > > Also add test to verify non-canonical 48-bit address will be rejected. > > Signed-off-by: Michel Thierry <michel.thierry@xxxxxxxxx> > Reviewed-by: Vinay Belgaumkar <vinay.belgaumkar@xxxxxxxxx> > --- > tests/gem_softpin.c | 66 +++++++++++++++++++++++++++++++++++++--- > ------------- > 1 file changed, 46 insertions(+), 20 deletions(-) > > diff --git a/tests/gem_softpin.c b/tests/gem_softpin.c > index 7bee16b..2981b30 100644 > --- a/tests/gem_softpin.c > +++ b/tests/gem_softpin.c > @@ -67,7 +67,7 @@ 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); > +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); > > @@ -198,6 +198,15 @@ static void setup_exec_obj(struct > drm_i915_gem_exec_object2 *exec, > exec->offset = offset; > } > > +/* gen8_canonical_addr > + * Used to convert any address into canonical form, i.e. [63:48] == [47]. > + * @address - a virtual address > +*/ > +static uint64_t gen8_canonical_addr(uint64_t address) > +{ > + return ((int64_t)address << 16) >> 16; > +} > + > /* gem_store_data_svm > * populate batch buffer with MI_STORE_DWORD_IMM command > * @fd: drm file descriptor > @@ -630,6 +639,7 @@ static void gem_pin_overlap_test(void) > * 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 > @@ -637,7 +647,7 @@ static void gem_pin_overlap_test(void) > #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) > { > i915_gem_userptr userptr; > @@ -650,7 +660,7 @@ static void gem_softpin_stress_test(void) > uint32_t batch_buf_handle; > int ring, len; > int buf, loop; > - uint64_t pinning_offset = 0x800000000000; > + uint64_t pinning_offset = STRESS_START_ADDRESS; > > fd = drm_open_driver(DRIVER_INTEL); > igt_require(uses_full_ppgtt(fd, FULL_48_BIT_PPGTT)); > @@ -680,10 +690,10 @@ static void gem_softpin_stress_test(void) > setup_exec_obj(&exec_object2[buf], shared_handle[buf], > EXEC_OBJECT_PINNED | > EXEC_OBJECT_SUPPORTS_48B_ADDRESS, > - pinning_offset); > + gen8_canonical_addr(pinning_offset)); > len += gem_store_data_svm(fd, batch_buffer + (len/4), > - pinning_offset, buf, > - (buf == STRESS_NUM_BUFFERS-1)? > \ > + > gen8_canonical_addr(pinning_offset), > + buf, (buf == > STRESS_NUM_BUFFERS-1)? \ > true:false); > > /* decremental 4K aligned address */ > @@ -705,10 +715,11 @@ static void gem_softpin_stress_test(void) > 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 = 0x800000000000; > + 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 == > pinning_offset); > + 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]); > @@ -727,10 +738,11 @@ static void gem_softpin_stress_test(void) > STRESS_NUM_BUFFERS + 1, len); > for (loop = 0; loop < STRESS_NUM_LOOPS; loop++) { > submit_and_sync(fd, &execbuf, batch_buf_handle); > - pinning_offset = 0x800000000000; > + 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 == > pinning_offset); > + 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]); > @@ -837,12 +849,14 @@ static void gem_write_multipage_buffer_test(void) > * 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. > + * 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) > +static void gem_pin_invalid_vma_test(bool test_decouple_flags, > + bool test_canonical_offset) > { > i915_gem_userptr userptr; > int fd, ret; > @@ -852,6 +866,7 @@ static void gem_pin_invalid_vma_test(bool > test_decouple_flags) > 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); > @@ -865,7 +880,11 @@ static void gem_pin_invalid_vma_test(bool > test_decouple_flags) > /* share with GPU */ > shared_buf_handle = init_userptr(fd, &userptr, shared_buffer, > BO_SIZE); > > - if (uses_full_ppgtt(fd, FULL_48_BIT_PPGTT) && > !test_decouple_flags) { > + 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); > @@ -965,7 +984,10 @@ static void gem_pin_high_address_test(void) > * 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 > + * 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 > @@ -990,7 +1012,7 @@ static void gem_pin_near_48Bit_test(void) > uint32_t batch_buf_handle, shared_buf_handle; > int ring, len; > const uint32_t data = 0x12345678; > - uint64_t high_address; > + uint64_t high_address, can_high_address; > > fd = drm_open_driver(DRIVER_INTEL); > igt_require(uses_full_ppgtt(fd, FULL_48_BIT_PPGTT)); > @@ -1007,14 +1029,15 @@ static void gem_pin_near_48Bit_test(void) > > 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, high_address, > + 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, > - high_address); > + can_high_address); > setup_exec_obj(&exec_object2[1], batch_buf_handle, 0, 0); > > ring = I915_EXEC_RENDER; > @@ -1022,7 +1045,7 @@ static void gem_pin_near_48Bit_test(void) > submit_and_sync(fd, &execbuf, batch_buf_handle); > gem_userptr_sync(fd, shared_buf_handle); > > - igt_assert(exec_object2[0].offset == high_address); > + 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, \ > @@ -1063,12 +1086,15 @@ int main(int argc, char* argv[]) > > /* Following tests need 32/48 Bit PPGTT support */ > igt_subtest("gem_pin_invalid_vma") { > - gem_pin_invalid_vma_test(false); > + gem_pin_invalid_vma_test(false, false); > } > > /* 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); > + gem_pin_invalid_vma_test(true, false); > } > igt_subtest("gem_softpin_stress") { > gem_softpin_stress_test(); > -- > 2.6.3 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/intel-gfx _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
