Hi Deborah,
On 2026-09-21 at 20:05:37 -0700, Deborah Brouwer wrote:
> Sparse VM_BIND support was introduced with Panthor DRM driver version
> 1.9. If a driver isn't advertising support for v1.9, skip the sparse
> VM_BIND subtests.
> 
> Use the advertised driver version rather than probing for EINVAL, since
> EINVAL may also indicate a uAPI regression rather than lack of support for
> sparse VM_BIND.
> 
> Signed-off-by: Deborah Brouwer <[email protected]>

Applied, thanks!


Regards,
Kamil

> ---
> Changes in v3:
> - change macro to function
> - move the helper functions to tests/panthor
> - add documentation for functions
> - Link to v2: 
> https://lore.kernel.org/r/20260920-b4-panthor_version_sparse-v2-1-fa395c125...@collabora.com
> 
> Changes in v2:
> - check for version at each subtest
> - make version check available to all panthor tests
> - use macro to suppress printing the last error
> - Link to v1: 
> https://lore.kernel.org/r/20260915-b4-panthor_version_sparse-v1-1-7ac10b75e...@collabora.com
> ---
>  tests/panthor/panthor_vm.c | 59 
> ++++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 59 insertions(+)
> 
> diff --git a/tests/panthor/panthor_vm.c b/tests/panthor/panthor_vm.c
> index 9011df25e..08a4b7f05 100644
> --- a/tests/panthor/panthor_vm.c
> +++ b/tests/panthor/panthor_vm.c
> @@ -7,6 +7,47 @@
>  #include "igt_sizes.h"
>  #include "panthor_drm.h"
>  
> +/**
> + * panthor_driver_version_at_least:
> + * @fd: panthor device file descriptor
> + * @major: required Panthor major version
> + * @minor: required Panthor minor version
> + *
> + * Returns true if the Panthor version is at least the requested version.
> + */
> +static bool
> +panthor_driver_version_at_least(int fd, int major, int minor)
> +{
> +     drmVersionPtr version = drmGetVersion(fd);
> +     bool supported;
> +
> +     igt_assert(version);
> +     supported = version->version_major > major ||
> +                 (version->version_major == major &&
> +                  version->version_minor >= minor);
> +     drmFreeVersion(version);
> +
> +     return supported;
> +}
> +
> +/**
> + * require_panthor_version:
> + * @fd: device file descriptor
> + * @major: required Panthor major version
> + * @minor: required Panthor minor version
> + *
> + * Require the Panthor version to be at least the requested version.
> + */
> +static void
> +require_panthor_version(int fd, int major, int minor)
> +{
> +     if (!panthor_driver_version_at_least(fd, major, minor)) {
> +             /* Clear irrelevant errno to avoid printing it in the skip log. 
> */
> +             errno = 0;
> +             igt_skip("Panthor version %d.%d or newer required\n", major, 
> minor);
> +     }
> +}
> +
>  int igt_main() {
>       int fd = -1;
>  
> @@ -293,6 +334,7 @@ int igt_main() {
>               uint32_t vm_id;
>               uint64_t map_size = SZ_4K * 4;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -306,6 +348,7 @@ int igt_main() {
>               uint64_t map_size = SZ_2M * 3;
>               const int INITIAL_VA = SZ_4M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -321,6 +364,7 @@ int igt_main() {
>               uint64_t map_size = SZ_2M * 3;
>               const int INITIAL_VA = SZ_4M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -336,6 +380,7 @@ int igt_main() {
>               uint64_t map_size = SZ_2M * 3;
>               const int INITIAL_VA = SZ_4M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -351,6 +396,7 @@ int igt_main() {
>               uint64_t map_size = SZ_2M * 3;
>               const int INITIAL_VA = SZ_4M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -366,6 +412,7 @@ int igt_main() {
>               uint64_t map_size = SZ_2M * 3;
>               const int INITIAL_VA = SZ_4M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -382,6 +429,7 @@ int igt_main() {
>               uint64_t map_size = SZ_2M * 3;
>               const int INITIAL_VA = SZ_4M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -402,6 +450,7 @@ int igt_main() {
>               uint64_t map_size = SZ_2M * 3;
>               const int INITIAL_VA = SZ_4M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -422,6 +471,7 @@ int igt_main() {
>               uint64_t map_size = SZ_2M * 3;
>               const int INITIAL_VA = SZ_4M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -442,6 +492,7 @@ int igt_main() {
>               uint64_t map_size = SZ_2M * 3;
>               const int INITIAL_VA = SZ_4M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -463,6 +514,7 @@ int igt_main() {
>               uint64_t map_size = SZ_2M * 3;
>               const int INITIAL_VA = SZ_4M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -483,6 +535,7 @@ int igt_main() {
>               uint64_t map_size = SZ_2M * 3;
>               const int INITIAL_VA = SZ_4M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -503,6 +556,7 @@ int igt_main() {
>               uint64_t map_size = SZ_2M * 3;
>               const int INITIAL_VA = SZ_4M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -524,6 +578,7 @@ int igt_main() {
>               uint64_t map_size = SZ_2M * 3;
>               const int INITIAL_VA = SZ_4M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -545,6 +600,7 @@ int igt_main() {
>               uint64_t map_size = SZ_2M * 3;
>               const int INITIAL_VA = SZ_4M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -566,6 +622,7 @@ int igt_main() {
>               uint64_t map_size = SZ_2M * 3;
>               const int INITIAL_VA = SZ_4M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -585,6 +642,7 @@ int igt_main() {
>               uint64_t map_size = ALIGN_DOWN(UINT64_MAX, SZ_2M) - (SZ_2M * 3);
>               const int INITIAL_VA = SZ_512M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> @@ -599,6 +657,7 @@ int igt_main() {
>               uint64_t unmap_size = ALIGN_DOWN(UINT64_MAX, SZ_2M) - map_size;
>               const int INITIAL_VA = SZ_512M;
>  
> +             require_panthor_version(fd, 1, 9);
>               igt_panthor_vm_create(fd, &vm_id, 0);
>               igt_assert(vm_id != 0);
>  
> 
> ---
> base-commit: 520aba273f391e31e18b6fe98d71201eb505a683
> change-id: 20260915-b4-panthor_version_sparse-5fbd31cc0d5d
> 
> Best regards,
> -- 
> Deborah Brouwer <[email protected]>
> 

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