diff options
| author | Mark Hairgrove <mhairgrove@nvidia.com> | 2018-10-03 20:51:34 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-10-04 08:55:54 +0200 |
| commit | f86ad3e0194b6964a058dc223ca80bf81b419cf0 (patch) | |
| tree | e7c895acc5c13730f8edbbe59c2248cefd6f130d /arch | |
| parent | powerpc/powernv/npu: Use size-based ATSD invalidates (diff) | |
| download | linux-f86ad3e0194b6964a058dc223ca80bf81b419cf0.tar.xz linux-f86ad3e0194b6964a058dc223ca80bf81b419cf0.zip | |
powerpc/powernv/npu: Remove atsd_threshold debugfs setting
This threshold is no longer used now that all invalidates issue a single
ATSD to each active NPU.
Signed-off-by: Mark Hairgrove <mhairgrove@nvidia.com>
Reviewed-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/platforms/powernv/npu-dma.c | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c index e4c0fabf37ac..6f60e0931922 100644 --- a/arch/powerpc/platforms/powernv/npu-dma.c +++ b/arch/powerpc/platforms/powernv/npu-dma.c @@ -17,7 +17,6 @@ #include <linux/pci.h> #include <linux/memblock.h> #include <linux/iommu.h> -#include <linux/debugfs.h> #include <linux/sizes.h> #include <asm/debugfs.h> @@ -43,14 +42,6 @@ static DEFINE_SPINLOCK(npu_context_lock); /* - * When an address shootdown range exceeds this threshold we invalidate the - * entire TLB on the GPU for the given PID rather than each specific address in - * the range. - */ -static uint64_t atsd_threshold = 2 * 1024 * 1024; -static struct dentry *atsd_threshold_dentry; - -/* * Other types of TCE cache invalidation are not functional in the * hardware. */ @@ -966,11 +957,6 @@ int pnv_npu2_init(struct pnv_phb *phb) static int npu_index; uint64_t rc = 0; - if (!atsd_threshold_dentry) { - atsd_threshold_dentry = debugfs_create_x64("atsd_threshold", - 0600, powerpc_debugfs_root, &atsd_threshold); - } - phb->npu.nmmu_flush = of_property_read_bool(phb->hose->dn, "ibm,nmmu-flush"); for_each_child_of_node(phb->hose->dn, dn) { |