Displaying 20 results from an estimated 1478 matches for "page_shift".
2019 Jul 30
0
[PATCH 07/13] mm: remove the page_shift member from struct hmm_range
...4
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -818,7 +818,6 @@ int amdgpu_ttm_tt_get_user_pages(struct amdgpu_bo *bo, struct page **pages)
0 : range->flags[HMM_PFN_WRITE];
range->pfn_flags_mask = 0;
range->pfns = pfns;
- range->page_shift = PAGE_SHIFT;
range->start = start;
range->end = start + ttm->num_pages * PAGE_SIZE;
diff --git a/drivers/gpu/drm/nouveau/nouveau_svm.c b/drivers/gpu/drm/nouveau/nouveau_svm.c
index 40e706234554..e7068ce46949 100644
--- a/drivers/gpu/drm/nouveau/nouveau_svm.c
+++ b/drivers/gpu/drm/no...
2019 Aug 06
0
[PATCH 07/15] mm: remove the page_shift member from struct hmm_range
...4
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -818,7 +818,6 @@ int amdgpu_ttm_tt_get_user_pages(struct amdgpu_bo *bo, struct page **pages)
0 : range->flags[HMM_PFN_WRITE];
range->pfn_flags_mask = 0;
range->pfns = pfns;
- range->page_shift = PAGE_SHIFT;
range->start = start;
range->end = start + ttm->num_pages * PAGE_SIZE;
diff --git a/drivers/gpu/drm/nouveau/nouveau_svm.c b/drivers/gpu/drm/nouveau/nouveau_svm.c
index 41fad4719ac6..668d4bd0c118 100644
--- a/drivers/gpu/drm/nouveau/nouveau_svm.c
+++ b/drivers/gpu/drm/no...
2019 Jul 30
29
hmm_range_fault related fixes and legacy API removal v3
Hi Jérôme, Ben, Felxi and Jason,
below is a series against the hmm tree which cleans up various minor
bits and allows HMM_MIRROR to be built on all architectures.
Diffstat:
7 files changed, 81 insertions(+), 171 deletions(-)
A git tree is also available at:
git://git.infradead.org/users/hch/misc.git hmm-cleanups
Gitweb:
2023 Jan 25
5
[PATCH v2 1/4] drm/amdgpu: Use cursor start instead of ttm resource start
cleanup PAGE_SHIFT operation and replacing
ttm_resource resource->start with cursor start
using amdgpu_res_first API.
v1 -> v2: reorder patch sequence
Signed-off-by: Somalapuram Amaranath <Amaranath.Somalapuram at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 11 ++++++++---
drivers/gpu/drm/...
2013 Nov 29
2
Fixing nouveau for >4k PAGE_SIZE
...ruct nouveau_vmmgr *vmm = vm->vmm;
- int big = vma->node->type != vmm->spg_shift;
u32 offset = vma->node->offset + (delta >> 12);
- u32 bits = vma->node->type - 12;
- u32 num = length >> vma->node->type;
+ u32 shift = vma->node->type;
+ u32 order = PAGE_SHIFT - shift;
+ u32 num = length >> PAGE_SHIFT;
u32 pde = (offset >> vmm->pgt_bits) - vm->fpde;
- u32 pte = (offset & ((1 << vmm->pgt_bits) - 1)) >> bits;
- u32 max = 1 << (vmm->pgt_bits - bits);
- unsigned m, sglen;
- u32 end, len;
+ u32 pte = offset...
2023 Jan 25
4
[PATCH v3 1/4] drm/amdgpu: Use cursor start instead of ttm resource start
cleanup PAGE_SHIFT operation and replacing
ttm_resource resource->start with cursor start
using amdgpu_res_first API.
v1 -> v2: reorder patch sequence
v2 -> v3: addressing review comment v2
Signed-off-by: Somalapuram Amaranath <Amaranath.Somalapuram at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_o...
2013 Aug 11
2
Fixing nouveau for >4k PAGE_SIZE
...> > @@ -98,7 +99,7 @@ nouveau_vm_map_sg_table(struct nouveau_vma *vma, u64 delta, u64 length,
> >
> > for_each_sg(mem->sg->sgl, sg, mem->sg->nents, i) {
> > struct nouveau_gpuobj *pgt = vm->pgt[pde].obj[big];
> > - sglen = sg_dma_len(sg) >> PAGE_SHIFT;
> > + sglen = sg_dma_len(sg) >> shift;
> >
> > end = pte + sglen;
> > if (unlikely(end >= max))
> Please add a WARN_ON(big); in map_sg and map_sg_table if you do this.
So that's debatable :-)
The above code is map_sg. Arguably my patch *fixes* usi...
2019 Jul 30
0
[PATCH 06/13] mm: remove superflous arguments from hmm_range_register
The start, end and page_shift values are all saved in the range
structure, so we might as well use that for argument passing.
Signed-off-by: Christoph Hellwig <hch at lst.de>
---
Documentation/vm/hmm.rst | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 7 +++++--
drivers/gpu/drm/nouveau/nouveau_svm.c...
2007 Feb 12
0
[PATCH] lift physical address restriction in svae/restore code
.../xc_linux_restore.c 2007-01-17 11:16:20.000000000 +0100
+++ 2007-02-07/tools/libxc/xc_linux_restore.c 2007-02-12 09:06:05.000000000 +0100
@@ -82,7 +82,7 @@ static int uncanonicalize_pagetable(int
if(!(pte & _PAGE_PRESENT))
continue;
- pfn = (pte >> PAGE_SHIFT) & 0xffffffff;
+ pfn = (pte >> PAGE_SHIFT) & MFN_MASK_X86;
if(pfn >= max_pfn) {
/* This "page table page" is probably not one; bail. */
@@ -120,12 +120,12 @@ static int uncanonicalize_pagetable(int
if(!(pte & _PAGE_PRES...
2013 Aug 11
2
Fixing nouveau for >4k PAGE_SIZE
...ouveau_mem is called "node" in various places (in
> nouveau_ttm) which is confusing. What is the relationship between
> nouveau_mem, nouveau_mm and nouveau_mm_node ? nouveau_mem seems to be
> having things such as "offset" in multiple of PAGE_SIZE, but have a
> "page_shift" member that appears to match the buffer object page_shift,
> hence seem to indicate that it is a card page shift...
>
> Would it be possible, maybe, to add comments next to the fields in
> those various data structure indicating in which units they are ?
>
> - Similar confu...
2005 Mar 14
4
[patch/unstable] page table cleanups
...l1e, *spl1e, gl2e, sl2e, gl1pfn, sl1mfn, sl1ss;
+ l1_pgentry_t *gpl1e, *spl1e;
+ l2_pgentry_t gl2e, sl2e;
+ unsigned long gl1pfn, sl1mfn, sl1ss;
struct pfn_info *sl1mfn_info;
int i;
__guest_get_l2e(ed, va, &gl2e);
- gl1pfn = gl2e >> PAGE_SHIFT;
+ gl1pfn = l2_pgentry_val(gl2e) >> PAGE_SHIFT;
sl1ss = __shadow_status(d, gl1pfn);
if ( !(sl1ss & PSH_shadowed) )
@@ -561,10 +563,10 @@ static void shadow_map_l1_into_current_l
__guest_set_l2e(ed, va, gl2e);
__shadow_set_l2e(ed, va, sl2e);
- gpl1...
2013 Aug 11
2
Fixing nouveau for >4k PAGE_SIZE
On Sun, 2013-08-11 at 17:06 +1000, Benjamin Herrenschmidt wrote:
> I think I found at least two cases where "12" was used where it should
> have been PAGE_SHIFT (basically ttm_mem_reg->num_pages). This
> is only the tip of the iceberg, so this isn't a formal patch submission,
> but I would appreciate your thought as to whether the below is correct
> (and thus I'm on the right track) :
This patch (which needs cleanups, and probably be b...
2019 Aug 06
24
hmm cleanups, v2
Hi Jérôme, Ben, Felix and Jason,
below is a series against the hmm tree which cleans up various minor
bits and allows HMM_MIRROR to be built on all architectures.
Diffstat:
11 files changed, 94 insertions(+), 210 deletions(-)
A git tree is also available at:
git://git.infradead.org/users/hch/misc.git hmm-cleanups.2
Gitweb:
2013 Dec 11
0
Fixing nouveau for >4k PAGE_SIZE
...gt;node->type != vmm->spg_shift;
> u32 offset = vma->node->offset + (delta >> 12);
> - u32 bits = vma->node->type - 12;
> - u32 num = length >> vma->node->type;
> + u32 shift = vma->node->type;
> + u32 order = PAGE_SHIFT - shift;
> + u32 num = length >> PAGE_SHIFT;
> u32 pde = (offset >> vmm->pgt_bits) - vm->fpde;
> - u32 pte = (offset & ((1 << vmm->pgt_bits) - 1)) >> bits;
> - u32 max = 1 << (vmm->pgt_bits - bits);
> -...
2019 Jul 26
0
[PATCH v2 5/7] mm/hmm: make full use of walk_page_range()
...-EBUSY;
+
+ /*
+ * Skip vma ranges that don't have struct page backing them or
+ * map I/O devices directly.
+ * TODO: handle peer-to-peer device mappings.
+ */
+ if (vma->vm_flags & (VM_IO | VM_PFNMAP | VM_MIXEDMAP))
+ return -EFAULT;
+
+ if (is_vm_hugetlb_page(vma)) {
+ if (huge_page_shift(hstate_vma(vma)) != range->page_shift &&
+ range->page_shift != PAGE_SHIFT)
+ return -EINVAL;
+ } else {
+ if (range->page_shift != PAGE_SHIFT)
+ return -EINVAL;
+ }
+
+ /*
+ * If vma does not allow read access, then assume that it does not
+ * allow write access, eithe...
2007 Apr 18
0
[PATCH 1/5] Paravirt page alloc.patch
...========================================================
--- a/arch/i386/mm/init.c
+++ b/arch/i386/mm/init.c
@@ -62,6 +62,7 @@ static pmd_t * __init one_md_table_init(
#ifdef CONFIG_X86_PAE
pmd_table = (pmd_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+ paravirt_alloc_pd(__pa(pmd_table) >> PAGE_SHIFT);
set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
pud = pud_offset(pgd, 0);
if (pmd_table != pmd_offset(pud, 0))
@@ -82,6 +83,7 @@ static pte_t * __init one_page_table_ini
{
if (pmd_none(*pmd)) {
pte_t *page_table = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+ paravirt_alloc_...
2007 Apr 18
0
[PATCH 1/5] Paravirt page alloc.patch
...========================================================
--- a/arch/i386/mm/init.c
+++ b/arch/i386/mm/init.c
@@ -62,6 +62,7 @@ static pmd_t * __init one_md_table_init(
#ifdef CONFIG_X86_PAE
pmd_table = (pmd_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+ paravirt_alloc_pd(__pa(pmd_table) >> PAGE_SHIFT);
set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
pud = pud_offset(pgd, 0);
if (pmd_table != pmd_offset(pud, 0))
@@ -82,6 +83,7 @@ static pte_t * __init one_page_table_ini
{
if (pmd_none(*pmd)) {
pte_t *page_table = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+ paravirt_alloc_...
2005 Jun 13
2
[PATCH] fix x86_64 initrd support
...7,20 @@ void __init setup_arch(char **cmdline_p)
acpi_reserve_bootmem();
#endif
#ifdef CONFIG_BLK_DEV_INITRD
- if (xen_start_info.mod_start) {
- if (LOADER_TYPE && INITRD_START) {
- if (INITRD_START + INITRD_SIZE <= (end_pfn << PAGE_SHIFT)) {
- /* reserve_bootmem_generic(INITRD_START, INITRD_SIZE); */
- initrd_start = INITRD_START + PAGE_OFFSET;
- initrd_end = initrd_start+INITRD_SIZE;
- initrd_below_start_ok =...
2003 Aug 22
2
kernel: locore.s doesn't assemble (fillkpt, $PAGE_SHIFT, $PTESHIFT)
since august 8th, 2003 the kernel on my i386 pentiumIII won't compile.
the problem arises in locore.s with the definition of the constants
$PAGE_SHIFT and $PTESHIFT used in `shr' and `shl' instructions within
the macros `fillkpt' and `fillkptphys'.
i've tried to cvsup(1) RELENG_4 and RELENG_4_8 every day for over a
week now, but kernel builds (as part of a buildworld) don't work
anymore. i have set up an area different f...
2007 Apr 18
0
[PATCH 1/6] Page allocation hooks for VMI backend
...========================================================
--- a/arch/i386/mm/init.c
+++ b/arch/i386/mm/init.c
@@ -62,6 +62,7 @@ static pmd_t * __init one_md_table_init(
#ifdef CONFIG_X86_PAE
pmd_table = (pmd_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+ paravirt_alloc_pd(__pa(pmd_table) >> PAGE_SHIFT);
set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
pud = pud_offset(pgd, 0);
if (pmd_table != pmd_offset(pud, 0))
@@ -82,6 +83,7 @@ static pte_t * __init one_page_table_ini
{
if (pmd_none(*pmd)) {
pte_t *page_table = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+ paravirt_alloc_...