6.6-stable review patch. If anyone has any objections, please let me know.
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From: Mohamed Ahmed mohamedahmedegypt2001@gmail.com
[ Upstream commit aed9a1a4f7106ff99a882ad06318cebfa71016a2 ]
Allow PTE kind and tile mode on BO create with VM_BIND, and add a GETPARAM to indicate this change. This is needed to support modifiers in NVK and ensure correctness when dealing with the nouveau GL driver.
The userspace modifiers implementation this is for can be found here: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24795
Fixes: b88baab82871 ("drm/nouveau: implement new VM_BIND uAPI") Signed-off-by: Mohamed Ahmed mohamedahmedegypt2001@gmail.com Reviewed-by: Faith Ekstrand faith.ekstrand@collabora.com Signed-off-by: Danilo Krummrich dakr@redhat.com Link: https://patchwork.freedesktop.org/patch/msgid/20240509204352.7597-1-mohameda... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/nouveau/nouveau_abi16.c | 3 ++ drivers/gpu/drm/nouveau/nouveau_bo.c | 44 +++++++++++-------------- include/uapi/drm/nouveau_drm.h | 7 ++++ 3 files changed, 29 insertions(+), 25 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c index 0fbc9c841666e..b3f0e10f83fef 100644 --- a/drivers/gpu/drm/nouveau/nouveau_abi16.c +++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c @@ -277,6 +277,9 @@ nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS) getparam->value = (u64)ttm_resource_manager_usage(vram_mgr) << PAGE_SHIFT; break; } + case NOUVEAU_GETPARAM_HAS_VMA_TILEMODE: + getparam->value = 1; + break; default: NV_PRINTK(dbg, cli, "unknown parameter %lld\n", getparam->param); return -EINVAL; diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 254d6c9ef2023..3a7f4ce34aa31 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -234,28 +234,28 @@ nouveau_bo_alloc(struct nouveau_cli *cli, u64 *size, int *align, u32 domain, }
nvbo->contig = !(tile_flags & NOUVEAU_GEM_TILE_NONCONTIG); - if (!nouveau_cli_uvmm(cli) || internal) { - /* for BO noVM allocs, don't assign kinds */ - if (cli->device.info.family >= NV_DEVICE_INFO_V0_FERMI) { - nvbo->kind = (tile_flags & 0x0000ff00) >> 8; - if (!nvif_mmu_kind_valid(mmu, nvbo->kind)) { - kfree(nvbo); - return ERR_PTR(-EINVAL); - }
- nvbo->comp = mmu->kind[nvbo->kind] != nvbo->kind; - } else if (cli->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { - nvbo->kind = (tile_flags & 0x00007f00) >> 8; - nvbo->comp = (tile_flags & 0x00030000) >> 16; - if (!nvif_mmu_kind_valid(mmu, nvbo->kind)) { - kfree(nvbo); - return ERR_PTR(-EINVAL); - } - } else { - nvbo->zeta = (tile_flags & 0x00000007); + if (cli->device.info.family >= NV_DEVICE_INFO_V0_FERMI) { + nvbo->kind = (tile_flags & 0x0000ff00) >> 8; + if (!nvif_mmu_kind_valid(mmu, nvbo->kind)) { + kfree(nvbo); + return ERR_PTR(-EINVAL); + } + + nvbo->comp = mmu->kind[nvbo->kind] != nvbo->kind; + } else if (cli->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { + nvbo->kind = (tile_flags & 0x00007f00) >> 8; + nvbo->comp = (tile_flags & 0x00030000) >> 16; + if (!nvif_mmu_kind_valid(mmu, nvbo->kind)) { + kfree(nvbo); + return ERR_PTR(-EINVAL); } - nvbo->mode = tile_mode; + } else { + nvbo->zeta = (tile_flags & 0x00000007); + } + nvbo->mode = tile_mode;
+ if (!nouveau_cli_uvmm(cli) || internal) { /* Determine the desirable target GPU page size for the buffer. */ for (i = 0; i < vmm->page_nr; i++) { /* Because we cannot currently allow VMM maps to fail @@ -297,12 +297,6 @@ nouveau_bo_alloc(struct nouveau_cli *cli, u64 *size, int *align, u32 domain, } nvbo->page = vmm->page[pi].shift; } else { - /* reject other tile flags when in VM mode. */ - if (tile_mode) - return ERR_PTR(-EINVAL); - if (tile_flags & ~NOUVEAU_GEM_TILE_NONCONTIG) - return ERR_PTR(-EINVAL); - /* Determine the desirable target GPU page size for the buffer. */ for (i = 0; i < vmm->page_nr; i++) { /* Because we cannot currently allow VMM maps to fail diff --git a/include/uapi/drm/nouveau_drm.h b/include/uapi/drm/nouveau_drm.h index 77d7ff0d5b110..c3d8dc7512971 100644 --- a/include/uapi/drm/nouveau_drm.h +++ b/include/uapi/drm/nouveau_drm.h @@ -68,6 +68,13 @@ extern "C" { */ #define NOUVEAU_GETPARAM_VRAM_USED 19
+/* + * NOUVEAU_GETPARAM_HAS_VMA_TILEMODE + * + * Query whether tile mode and PTE kind are accepted with VM allocs or not. + */ +#define NOUVEAU_GETPARAM_HAS_VMA_TILEMODE 20 + struct drm_nouveau_getparam { __u64 param; __u64 value;