search for: d_page

...x); first_page = get_first_page(f_page); @@ -1546,7 +1540,6 @@ static void zs_object_copy(unsigned long dst, unsigned long src, kunmap_atomic(d_addr); kunmap_atomic(s_addr); s_page = get_next_page(s_page); - BUG_ON(!s_page); s_addr = kmap_atomic(s_page); d_addr = kmap_atomic(d_page); s_size = class->size - written; @@ -1556,7 +1549,6 @@ static void zs_object_copy(unsigned long dst, unsigned long src, if (d_off >= PAGE_SIZE) { kunmap_atomic(d_addr); d_page = get_next_page(d_page); - BUG_ON(!d_page); d_addr = kmap_atomic(d_page); d_size = class-&g...

Greetings, When box is earning its keep, nouveau/swiotlb grumble.. a LOT. The below is from master.today. [12594.640959] nouveau 0000:01:00.0: swiotlb buffer is full (sz: 2097152 bytes) [12594.693000] nouveau 0000:01:00.0: swiotlb buffer is full (sz: 2097152 bytes) [12594.713787] nouveau 0000:01:00.0: swiotlb buffer is full (sz: 2097152 bytes) [12594.743413] nouveau 0000:01:00.0: swiotlb buffer

...;inuse == class->objs_per_zspage; > } > > unsigned long zs_get_total_pages(struct zs_pool *pool) > @@ -1625,7 +1622,7 @@ static int migrate_zspage(struct zs_pool *pool, struct size_class *class, > } > > /* Stop if there is no more space */ > - if (zspage_full(d_page)) { > + if (zspage_full(class, d_page)) { > unpin_tag(handle); > ret = -ENOMEM; > break; > @@ -1684,7 +1681,7 @@ static enum fullness_group putback_zspage(struct zs_pool *pool, > { > enum fullness_group fullness; > > - fullness = get_fullness_group(fi...

...;inuse == class->objs_per_zspage; > } > > unsigned long zs_get_total_pages(struct zs_pool *pool) > @@ -1625,7 +1622,7 @@ static int migrate_zspage(struct zs_pool *pool, struct size_class *class, > } > > /* Stop if there is no more space */ > - if (zspage_full(d_page)) { > + if (zspage_full(class, d_page)) { > unpin_tag(handle); > ret = -ENOMEM; > break; > @@ -1684,7 +1681,7 @@ static enum fullness_group putback_zspage(struct zs_pool *pool, > { > enum fullness_group fullness; > > - fullness = get_fullness_group(fi...

...(struct zs_pool *pool, unsigned long handle) } EXPORT_SYMBOL_GPL(zs_free); -static void zs_object_copy(unsigned long dst, unsigned long src, - struct size_class *class) +static void zs_object_copy(struct size_class *class, unsigned long dst, + unsigned long src) { struct page *s_page, *d_page; unsigned long s_objidx, d_objidx; @@ -1563,8 +1565,8 @@ static void zs_object_copy(unsigned long dst, unsigned long src, * Find alloced object in zspage from index object and * return handle. */ -static unsigned long find_alloced_obj(struct page *page, int index, - struct size_class *c...

...he one on hand? (seems to work) --- drivers/gpu/drm/ttm/ttm_page_alloc_dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c @@ -342,7 +342,7 @@ static struct dma_page *__ttm_dma_alloc_ if (!d_page) return NULL; - if (pool->type & IS_HUGE) + if (1 || pool->type & IS_HUGE) attrs = DMA_ATTR_NO_WARN; vaddr = dma_alloc_attrs(pool->dev, pool->size, &d_page->dma,

...age->objects; + return first_page->inuse == class->objs_per_zspage; } unsigned long zs_get_total_pages(struct zs_pool *pool) @@ -1625,7 +1622,7 @@ static int migrate_zspage(struct zs_pool *pool, struct size_class *class, } /* Stop if there is no more space */ - if (zspage_full(d_page)) { + if (zspage_full(class, d_page)) { unpin_tag(handle); ret = -ENOMEM; break; @@ -1684,7 +1681,7 @@ static enum fullness_group putback_zspage(struct zs_pool *pool, { enum fullness_group fullness; - fullness = get_fullness_group(first_page); + fullness = get_fullness_group(class...

...age->objects; + return first_page->inuse == class->objs_per_zspage; } unsigned long zs_get_total_pages(struct zs_pool *pool) @@ -1628,7 +1625,7 @@ static int migrate_zspage(struct zs_pool *pool, struct size_class *class, } /* Stop if there is no more space */ - if (zspage_full(d_page)) { + if (zspage_full(class, d_page)) { unpin_tag(handle); ret = -ENOMEM; break; @@ -1687,7 +1684,7 @@ static enum fullness_group putback_zspage(struct zs_pool *pool, { enum fullness_group fullness; - fullness = get_fullness_group(first_page); + fullness = get_fullness_group(class...

...e; > > } > > > > unsigned long zs_get_total_pages(struct zs_pool *pool) > >@@ -1625,7 +1622,7 @@ static int migrate_zspage(struct zs_pool *pool, struct size_class *class, > > } > > > > /* Stop if there is no more space */ > >- if (zspage_full(d_page)) { > >+ if (zspage_full(class, d_page)) { > > unpin_tag(handle); > > ret = -ENOMEM; > > break; > >@@ -1684,7 +1681,7 @@ static enum fullness_group putback_zspage(struct zs_pool *pool, > > { > > enum fullness_group fullness; > > > &...

...-- > drivers/gpu/drm/ttm/ttm_page_alloc_dma.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > --- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c > +++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c > @@ -342,7 +342,7 @@ static struct dma_page *__ttm_dma_alloc_ > if (!d_page) > return NULL; > > - if (pool->type & IS_HUGE) > + if (1 || pool->type & IS_HUGE) > attrs = DMA_ATTR_NO_WARN; > > vaddr = dma_alloc_attrs(pool->dev, pool->size, &d_page->dma, While IS_HUGE is indeed false on my box, it just doesn't m...

...git/torvalds/linux.git/commit/fs/exec.c?id=47a2ebb7f5053387f5753b524f4920b9b829f922 "execve: warn if process starts with executable stack" objdump -x shows: /usr/lib/klibc/bin/sh: file format elf32-powerpc /usr/lib/klibc/bin/sh architecture: powerpc:common, flags 0x00000102: EXEC_P, D_PAGED start address 0x10000140 Program Header: PHDR off 0x00000034 vaddr 0x10000034 paddr 0x10000034 align 2**2 filesz 0x000000a0 memsz 0x000000a0 flags r-x INTERP off 0x000000d4 vaddr 0x100000d4 paddr 0x100000d4 align 2**0 filesz 0x0000002a memsz 0x0000002a flags r--...

Another revision of this patchset critical for GK20A to operate. Previous attempts were exclusively using either TTM's regular page allocator or the DMA API one. Both have their advantages and drawbacks: the page allocator is fast but requires explicit synchronization on non-coherent architectures, whereas the DMA allocator always returns coherent memory, but is also slower, creates a

Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.

Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.

Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.

Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.

...= (void *)obj; + set_freeobj(first_page, f_objidx); mod_zspage_inuse(first_page, -1); zs_stat_dec(class, OBJ_USED, 1); } @@ -1543,8 +1576,8 @@ static void zs_object_copy(struct size_class *class, unsigned long dst, obj_to_location(src, &s_page, &s_objidx); obj_to_location(dst, &d_page, &d_objidx); - s_off = obj_idx_to_offset(s_page, s_objidx, class->size); - d_off = obj_idx_to_offset(d_page, d_objidx, class->size); + s_off = (class->size * s_objidx) & ~PAGE_MASK; + d_off = (class->size * d_objidx) & ~PAGE_MASK; if (s_off + class->size > PAGE_S...

...= (void *)obj; + set_freeobj(first_page, f_objidx); mod_zspage_inuse(first_page, -1); zs_stat_dec(class, OBJ_USED, 1); } @@ -1541,8 +1573,8 @@ static void zs_object_copy(struct size_class *class, unsigned long dst, obj_to_location(src, &s_page, &s_objidx); obj_to_location(dst, &d_page, &d_objidx); - s_off = obj_idx_to_offset(s_page, s_objidx, class->size); - d_off = obj_idx_to_offset(d_page, d_objidx, class->size); + s_off = (class->size * s_objidx) & ~PAGE_MASK; + d_off = (class->size * d_objidx) & ~PAGE_MASK; if (s_off + class->size > PAGE_S...

...starts with executable stack" This commit is not a good idea. Does it think it's only in x86_64 land? > > objdump -x shows: > > /usr/lib/klibc/bin/sh: file format elf32-powerpc > /usr/lib/klibc/bin/sh > architecture: powerpc:common, flags 0x00000102: > EXEC_P, D_PAGED > start address 0x10000140 > > Program Header: > PHDR off 0x00000034 vaddr 0x10000034 paddr 0x10000034 align 2**2 > filesz 0x000000a0 memsz 0x000000a0 flags r-x > INTERP off 0x000000d4 vaddr 0x100000d4 paddr 0x100000d4 align 2**0 > filesz 0x00000...

Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.