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i915 preview #4

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git-svn-id: svn://kolibrios.org@2344 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge) 2012-02-04 13:23:46 +00:00
parent 9dadf069ea
commit 6ed41e9c86
13 changed files with 847 additions and 204 deletions
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1
drivers/video/drm/i915/Gtt/intel-gtt.c
View File

@ -600,6 +600,7 @@ void intel_gtt_insert_pages(unsigned int first_entry, unsigned int num_entries,
}
readl(intel_private.gtt+j-1);
}
EXPORT_SYMBOL(intel_gtt_insert_pages);
void intel_gtt_clear_range(unsigned int first_entry, unsigned int num_entries)

76
drivers/video/drm/i915/bitmap.c
View File

@ -8,11 +8,11 @@
void __attribute__((regparm(1))) destroy_bitmap(bitmap_t *bitmap)
{
/*
*
*
*
*/
printf("destroy bitmap %d\n", bitmap->handle);
free_handle(&bm_man, bitmap->handle);
bitmap->handle = 0;
i915_gem_object_unpin(bitmap->obj);
drm_gem_object_unreference(&bitmap->obj->base);
__DestroyObject(bitmap);
};
@ -30,29 +30,47 @@ int init_bitmaps()
};
int create_bitmap(struct ubitmap *pbitmap)
int create_surface(struct io_call_10 *pbitmap)
{
struct drm_i915_gem_object *obj;
bitmap_t *bitmap;
u32 handle;
u32 width;
u32 height;
u32 size;
u32 pitch;
u32 width, max_width;
u32 height, max_height;
u32 size, max_size;
u32 pitch, max_pitch;
void *uaddr;
int ret;
pbitmap->handle = 0;
pbitmap->data = NULL;
pbitmap->data = (void*)-1;
width = pbitmap->width;
width = pbitmap->width;
height = pbitmap->height;
/*
if((width==0)||(height==0)||(width>4096)||(height>4096))
goto err1;
if( ((pbitmap->max_width !=0 ) &&
(pbitmap->max_width < width)) ||
(pbitmap->max_width > 4096) )
goto err1;
if( ((pbitmap->max_height !=0 ) &&
(pbitmap->max_height < width)) ||
(pbitmap->max_height > 4096) )
goto err1;
if( pbitmap->format != 0)
goto err1;
*/
max_width = (pbitmap->max_width ==0) ? width : pbitmap->max_width;
max_height = (pbitmap->max_height==0) ? height : pbitmap->max_height;
handle = alloc_handle(&bm_man);
// printf("%s %d\n",__FUNCTION__, handle);
@ -73,6 +91,7 @@ int create_bitmap(struct ubitmap *pbitmap)
pitch = ALIGN(width*4,64);
size = roundup(pitch*height, PAGE_SIZE);
// printf("pitch %d size %d\n", pitch, size);
obj = i915_gem_alloc_object(main_device, size);
@ -83,48 +102,59 @@ int create_bitmap(struct ubitmap *pbitmap)
if (ret)
goto err3;
uaddr = UserAlloc(size);
max_pitch = ALIGN(max_width*4,64);
max_size = roundup(max_pitch*max_height, PAGE_SIZE);
uaddr = UserAlloc(max_size);
if( uaddr == NULL)
goto err4;
else
{
u32_t *src, *dst;
int count;
u32 count, max_count;
#define page_tabs 0xFDC00000 /* really dirty hack */
src = (u32_t*)obj->pages;
dst = &((u32_t*)page_tabs)[(u32_t)uaddr >> 12];
count = size/4096;
max_count = max_size/4096 - count;
while(count--)
{
*dst++ = (0xFFFFF000 & *src++) | 0x207 ; // map as shared page
};
// while(max_count--)
// *dst++ = 0; // cleanup unused space
}
bitmap->handle = handle;
bitmap->width = width;
bitmap->height = height;
bitmap->uaddr = uaddr;
bitmap->pitch = pitch;
bitmap->gaddr = obj->gtt_offset;
bitmap->uaddr = uaddr;
bitmap->width = width;
bitmap->height = height;
bitmap->max_width = max_width;
bitmap->max_height = max_height;
bitmap->obj = obj;
bitmap->header.destroy = destroy_bitmap;
pbitmap->pitch = pitch;
pbitmap->handle = handle;
pbitmap->data = uaddr;
pbitmap->pitch = pitch;
// printf("%s handle %d pitch %d gpu %x user %x\n",
// __FUNCTION__, handle, pitch, obj->gtt_offset, uaddr);
printf("%s handle: %d pitch: %d gpu_addr: %x user_addr: %x\n",
__FUNCTION__, handle, pitch, obj->gtt_offset, uaddr);
return 0;
err4:
// drm_gem_object_unpin;
i915_gem_object_unpin(obj);
err3:
// drm_gem_object_unreference(&obj->base);
drm_gem_object_unreference(&obj->base);
err2:
free_handle(&bm_man, handle);
__DestroyObject(bitmap);
@ -134,6 +164,8 @@ err1:
};
int init_hman(struct hman *man, u32 count)
{
u32* data;

37
drivers/video/drm/i915/bitmap.h
View File

@ -36,25 +36,36 @@ typedef struct
{
kobj_t header;
u32 handle;
u32 width;
u32 height;
u32 pitch;
u32 gaddr;
void *uaddr;
u32 handle;
void *uaddr;
u32 pitch;
u32 gaddr;
u32 width;
u32 height;
u32 max_width;
u32 max_height;
u32 format;
struct drm_i915_gem_object *obj;
}bitmap_t;
struct ubitmap
struct io_call_10 /* SRV_CREATE_SURFACE */
{
u32 width;
u32 height;
u32 pitch;
u32 handle;
void *data;
u32 handle; // ignored
void *data; // ignored
u32 width;
u32 height;
u32 pitch; // ignored
u32 max_width;
u32 max_height;
u32 format; // reserved mbz
};
int create_bitmap(struct ubitmap *pbitmap);
int create_surface(struct io_call_10 *pbitmap);
int init_bitmaps();

121
drivers/video/drm/i915/clip.inc Normal file
View File

@ -0,0 +1,121 @@
#define CLIP_TOP 1
#define CLIP_BOTTOM 2
#define CLIP_RIGHT 4
#define CLIP_LEFT 8
typedef struct
{
int xmin;
int ymin;
int xmax;
int ymax;
}clip_t;
static int _L1OutCode( clip_t *clip, int x, int y )
/*=================================
Verify that a point is inside or outside the active viewport. */
{
int flag;
flag = 0;
if( x < clip->xmin ) {
flag |= CLIP_LEFT;
} else if( x > clip->xmax ) {
flag |= CLIP_RIGHT;
}
if( y < clip->ymin ) {
flag |= CLIP_TOP;
} else if( y > clip->ymax ) {
flag |= CLIP_BOTTOM;
}
return( flag );
};
static void block_inter( clip_t *clip, int *x, int *y, int flag )
/*======================================================
Find the intersection of a block with a boundary of the viewport. */
{
if( flag & CLIP_TOP ) {
*y = clip->ymin;
} else if( flag & CLIP_BOTTOM ) {
*y = clip->ymax;
} else if( flag & CLIP_RIGHT ) {
*x = clip->xmax;
} else if( flag & CLIP_LEFT ) {
*x = clip->xmin;
}
}
int BlockClip(clip_t *clip, int *x1, int *y1, int *x2, int* y2 )
/*==============================================================
Clip a block with opposite corners (x1,y1) and (x2,y2) to the
active viewport based on the Cohen-Sutherland algorithm for line
clipping. Return the clipped coordinates and a decision drawing
flag ( 0 draw : 1 don't draw ). */
{
int flag1;
int flag2;
flag1 = _L1OutCode( clip, *x1, *y1 );
flag2 = _L1OutCode( clip, *x2, *y2 );
for( ;; ) {
if( flag1 & flag2 ) break; /* trivially outside */
if( flag1 == flag2 ) break; /* completely inside */
if( flag1 == 0 ) {
block_inter( clip, x2, y2, flag2 );
flag2 = _L1OutCode( clip, *x2, *y2 );
} else {
block_inter( clip, x1, y1, flag1 );
flag1 = _L1OutCode( clip, *x1, *y1 );
}
}
return( flag1 & flag2 );
}
int blit_clip(clip_t *dst_clip,int *dst_x,int *dst_y,
clip_t *src_clip,int *src_x, int *src_y,
u32_t *w, u32_t *h)
{
int sx0, sy0, sx1, sy1;
sx0 = *src_x;
sy0 = *src_y;
sx1 = sx0 + *w - 1;
sy1 = sy0 + *h - 1;
if( ! BlockClip( src_clip, &sx0, &sy0, &sx1, &sy1))
{
int dx0, dy0, dx1, dy1;
dx0 = *dst_x + sx0 - *src_x;
dy0 = *dst_y + sy0 - *src_y;
dx1 = dx0 + sx1 - sx0;
dy1 = dy0 + sy1 - sy0;
if( ! BlockClip( dst_clip, &dx0, &dy0, &dx1, &dy1))
{
*w = dx1 - dx0 + 1;
*h = dy1 - dy0 + 1;
*src_x += dx0 - *dst_x;
*src_y += dy0 - *dst_y;
*dst_x = dx0;
*dst_y = dy0;
return 0;
};
}
return 1;
};

2
drivers/video/drm/i915/i915_drv.h
View File

@ -756,6 +756,8 @@ enum i915_cache_level {
struct drm_i915_gem_object {
struct drm_gem_object base;
void *mapped;
/** Current space allocated to this object in the GTT, if any. */
struct drm_mm_node *gtt_space;
struct list_head gtt_list;

633
drivers/video/drm/i915/i915_gem.c
View File

@ -36,6 +36,19 @@
//#include <linux/swap.h>
#include <linux/pci.h>
extern int x86_clflush_size;
#undef mb
#undef rmb
#undef wmb
#define mb() asm volatile("mfence")
#define rmb() asm volatile ("lfence")
#define wmb() asm volatile ("sfence")
static inline void clflush(volatile void *__p)
{
asm volatile("clflush %0" : "+m" (*(volatile char*)__p));
}
#define MAX_ERRNO 4095
@ -56,6 +69,16 @@ static inline long PTR_ERR(const void *ptr)
return (long) ptr;
}
void
drm_gem_object_free(struct kref *kref)
{
struct drm_gem_object *obj = (struct drm_gem_object *) kref;
struct drm_device *dev = obj->dev;
BUG_ON(!mutex_is_locked(&dev->struct_mutex));
i915_gem_free_object(obj);
}
/**
* Initialize an already allocated GEM object of the specified size with
@ -67,13 +90,16 @@ int drm_gem_object_init(struct drm_device *dev,
BUG_ON((size & (PAGE_SIZE - 1)) != 0);
obj->dev = dev;
kref_init(&obj->refcount);
atomic_set(&obj->handle_count, 0);
obj->size = size;
return 0;
}
void
drm_gem_object_release(struct drm_gem_object *obj)
{ }
#define I915_EXEC_CONSTANTS_MASK (3<<6)
@ -264,7 +290,6 @@ i915_gem_create(struct drm_file *file,
/* drop reference from allocate - handle holds it now */
drm_gem_object_unreference(&obj->base);
// trace_i915_gem_object_create(obj);
*handle_p = handle;
return 0;
@ -755,8 +780,8 @@ i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj,
return 0;
err_pages:
// while (i--)
// page_cache_release(obj->pages[i]);
while (i--)
FreePage(obj->pages[i]);
free(obj->pages);
obj->pages = NULL;
@ -769,6 +794,8 @@ i915_gem_object_put_pages_gtt(struct drm_i915_gem_object *obj)
int page_count = obj->base.size / PAGE_SIZE;
int i;
ENTER();
BUG_ON(obj->madv == __I915_MADV_PURGED);
// if (obj->tiling_mode != I915_TILING_NONE)
@ -776,21 +803,16 @@ i915_gem_object_put_pages_gtt(struct drm_i915_gem_object *obj)
if (obj->madv == I915_MADV_DONTNEED)
obj->dirty = 0;
/* It's a swap!!!
for (i = 0; i < page_count; i++) {
if (obj->dirty)
set_page_dirty(obj->pages[i]);
if (obj->madv == I915_MADV_WILLNEED)
mark_page_accessed(obj->pages[i]);
//page_cache_release(obj->pages[i]);
FreePage(obj->pages[i]);
}
obj->dirty = 0;
*/
free(obj->pages);
obj->pages = NULL;
LEAVE();
}
void
@ -806,7 +828,7 @@ i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
/* Add a reference if we're newly entering the active list. */
if (!obj->active) {
// drm_gem_object_reference(&obj->base);
drm_gem_object_reference(&obj->base);
obj->active = 1;
}
@ -828,9 +850,50 @@ i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
}
}
static void
i915_gem_object_move_off_active(struct drm_i915_gem_object *obj)
{
list_del_init(&obj->ring_list);
obj->last_rendering_seqno = 0;
}
static void
i915_gem_object_move_to_flushing(struct drm_i915_gem_object *obj)
{
struct drm_device *dev = obj->base.dev;
drm_i915_private_t *dev_priv = dev->dev_private;
BUG_ON(!obj->active);
list_move_tail(&obj->mm_list, &dev_priv->mm.flushing_list);
i915_gem_object_move_off_active(obj);
}
/* Immediately discard the backing storage */
static void
i915_gem_object_truncate(struct drm_i915_gem_object *obj)
{
struct inode *inode;
/* Our goal here is to return as much of the memory as
* is possible back to the system as we are called from OOM.
* To do this we must instruct the shmfs to drop all of its
* backing pages, *now*.
*/
obj->madv = __I915_MADV_PURGED;
}
static inline int
i915_gem_object_is_purgeable(struct drm_i915_gem_object *obj)
{
return obj->madv == I915_MADV_DONTNEED;
}
static void
i915_gem_process_flushing_list(struct intel_ring_buffer *ring,
uint32_t flush_domains)
@ -848,9 +911,6 @@ i915_gem_process_flushing_list(struct intel_ring_buffer *ring,
i915_gem_object_move_to_active(obj, ring,
i915_gem_next_request_seqno(ring));
// trace_i915_gem_object_change_domain(obj,
// obj->base.read_domains,
// old_write_domain);
}
}
}
@ -874,59 +934,6 @@ i915_gem_process_flushing_list(struct intel_ring_buffer *ring,
@ -963,15 +970,102 @@ i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj)
/* If there is rendering queued on the buffer being evicted, wait for
* it.
*/
// if (obj->active) {
if (obj->active) {
// ret = i915_wait_request(obj->ring, obj->last_rendering_seqno);
// if (ret)
// return ret;
// }
}
return 0;
}
static void i915_gem_object_finish_gtt(struct drm_i915_gem_object *obj)
{
u32 old_write_domain, old_read_domains;
/* Act a barrier for all accesses through the GTT */
mb();
/* Force a pagefault for domain tracking on next user access */
// i915_gem_release_mmap(obj);
if ((obj->base.read_domains & I915_GEM_DOMAIN_GTT) == 0)
return;
old_read_domains = obj->base.read_domains;
old_write_domain = obj->base.write_domain;
obj->base.read_domains &= ~I915_GEM_DOMAIN_GTT;
obj->base.write_domain &= ~I915_GEM_DOMAIN_GTT;
}
/**
* Unbinds an object from the GTT aperture.
*/
int
i915_gem_object_unbind(struct drm_i915_gem_object *obj)
{
int ret = 0;
ENTER();
if (obj->gtt_space == NULL)
return 0;
if (obj->pin_count != 0) {
DRM_ERROR("Attempting to unbind pinned buffer\n");
return -EINVAL;
}
ret = i915_gem_object_finish_gpu(obj);
if (ret == -ERESTARTSYS)
return ret;
/* Continue on if we fail due to EIO, the GPU is hung so we
* should be safe and we need to cleanup or else we might
* cause memory corruption through use-after-free.
*/
i915_gem_object_finish_gtt(obj);
/* Move the object to the CPU domain to ensure that
* any possible CPU writes while it's not in the GTT
* are flushed when we go to remap it.
*/
if (ret == 0)
ret = i915_gem_object_set_to_cpu_domain(obj, 1);
if (ret == -ERESTARTSYS)
return ret;
if (ret) {
/* In the event of a disaster, abandon all caches and
* hope for the best.
*/
i915_gem_clflush_object(obj);
obj->base.read_domains = obj->base.write_domain = I915_GEM_DOMAIN_CPU;
}
/* release the fence reg _after_ flushing */
ret = i915_gem_object_put_fence(obj);
if (ret == -ERESTARTSYS)
return ret;
i915_gem_gtt_unbind_object(obj);
i915_gem_object_put_pages_gtt(obj);
list_del_init(&obj->gtt_list);
list_del_init(&obj->mm_list);
/* Avoid an unnecessary call to unbind on rebind. */
obj->map_and_fenceable = true;
drm_mm_put_block(obj->gtt_space);
obj->gtt_space = NULL;
obj->gtt_offset = 0;
if (i915_gem_object_is_purgeable(obj))
i915_gem_object_truncate(obj);
LEAVE();
return ret;
}
int
i915_gem_flush_ring(struct intel_ring_buffer *ring,
@ -983,7 +1077,6 @@ i915_gem_flush_ring(struct intel_ring_buffer *ring,
if (((invalidate_domains | flush_domains) & I915_GEM_GPU_DOMAINS) == 0)
return 0;
// trace_i915_gem_ring_flush(ring, invalidate_domains, flush_domains);
ret = ring->flush(ring, invalidate_domains, flush_domains);
if (ret)
@ -995,6 +1088,141 @@ i915_gem_flush_ring(struct intel_ring_buffer *ring,
return 0;
}
static int i915_ring_idle(struct intel_ring_buffer *ring)
{
int ret;
if (list_empty(&ring->gpu_write_list) && list_empty(&ring->active_list))
return 0;
if (!list_empty(&ring->gpu_write_list)) {
ret = i915_gem_flush_ring(ring,
I915_GEM_GPU_DOMAINS, I915_GEM_GPU_DOMAINS);
if (ret)
return ret;
}
return 0; //i915_wait_request(ring, i915_gem_next_request_seqno(ring));
}
int
i915_gpu_idle(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
int ret, i;
/* Flush everything onto the inactive list. */
for (i = 0; i < I915_NUM_RINGS; i++) {
ret = i915_ring_idle(&dev_priv->ring[i]);
if (ret)
return ret;
}
return 0;
}
static bool ring_passed_seqno(struct intel_ring_buffer *ring, u32 seqno)
{
return i915_seqno_passed(ring->get_seqno(ring), seqno);
}
static int
i915_gem_object_flush_fence(struct drm_i915_gem_object *obj,
struct intel_ring_buffer *pipelined)
{
int ret;
if (obj->fenced_gpu_access) {
if (obj->base.write_domain & I915_GEM_GPU_DOMAINS) {
ret = i915_gem_flush_ring(obj->last_fenced_ring,
0, obj->base.write_domain);
if (ret)
return ret;
}
obj->fenced_gpu_access = false;
}
if (obj->last_fenced_seqno && pipelined != obj->last_fenced_ring) {
if (!ring_passed_seqno(obj->last_fenced_ring,
obj->last_fenced_seqno)) {
// ret = i915_wait_request(obj->last_fenced_ring,
// obj->last_fenced_seqno);
// if (ret)
// return ret;
}
obj->last_fenced_seqno = 0;
obj->last_fenced_ring = NULL;
}
/* Ensure that all CPU reads are completed before installing a fence
* and all writes before removing the fence.
*/
if (obj->base.read_domains & I915_GEM_DOMAIN_GTT)
mb();
return 0;
}
int
i915_gem_object_put_fence(struct drm_i915_gem_object *obj)
{
int ret;
// if (obj->tiling_mode)
// i915_gem_release_mmap(obj);
ret = i915_gem_object_flush_fence(obj, NULL);
if (ret)
return ret;
if (obj->fence_reg != I915_FENCE_REG_NONE) {
struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
i915_gem_clear_fence_reg(obj->base.dev,
&dev_priv->fence_regs[obj->fence_reg]);
obj->fence_reg = I915_FENCE_REG_NONE;
}
return 0;
}
@ -1164,7 +1392,7 @@ i915_gem_object_bind_to_gtt(struct drm_i915_gem_object *obj,
ret = i915_gem_gtt_bind_object(obj);
if (ret) {
// i915_gem_object_put_pages_gtt(obj);
i915_gem_object_put_pages_gtt(obj);
drm_mm_put_block(obj->gtt_space);
obj->gtt_space = NULL;
@ -1195,7 +1423,6 @@ i915_gem_object_bind_to_gtt(struct drm_i915_gem_object *obj,
obj->map_and_fenceable = mappable && fenceable;
// trace_i915_gem_object_bind(obj, map_and_fenceable);
return 0;
}
@ -1220,12 +1447,52 @@ i915_gem_clflush_object(struct drm_i915_gem_object *obj)
if (obj->cache_level != I915_CACHE_NONE)
return;
// trace_i915_gem_object_clflush(obj);
if(obj->mapped != NULL)
{
uint8_t *page_virtual;
unsigned int i;
// drm_clflush_pages(obj->pages, obj->base.size / PAGE_SIZE);
mb();
__asm__ ("wbinvd"); // this is really ugly
mb();
page_virtual = obj->mapped;
asm volatile("mfence");
for (i = 0; i < obj->base.size; i += x86_clflush_size)
clflush(page_virtual + i);
asm volatile("mfence");
}
else
{
uint8_t *page_virtual;
unsigned int i;
page_virtual = AllocKernelSpace(obj->base.size);
if(page_virtual != NULL)
{
u32_t *src, *dst;
u32 count;
#define page_tabs 0xFDC00000 /* really dirty hack */
src = (u32_t*)obj->pages;
dst = &((u32_t*)page_tabs)[(u32_t)page_virtual >> 12];
count = obj->base.size/4096;
while(count--)
{
*dst++ = (0xFFFFF000 & *src++) | 0x001 ;
};
asm volatile("mfence");
for (i = 0; i < obj->base.size; i += x86_clflush_size)
clflush(page_virtual + i);
asm volatile("mfence");
FreeKernelSpace(page_virtual);
}
else
{
asm volatile (
"mfence \n"
"wbinvd \n" /* this is really ugly */
"mfence");
}
}
}
/** Flushes any GPU write domain for the object if it's dirty. */
@ -1239,10 +1506,29 @@ i915_gem_object_flush_gpu_write_domain(struct drm_i915_gem_object *obj)
return i915_gem_flush_ring(obj->ring, 0, obj->base.write_domain);
}
/** Flushes the GTT write domain for the object if it's dirty. */
static void
i915_gem_object_flush_gtt_write_domain(struct drm_i915_gem_object *obj)
{
uint32_t old_write_domain;
if (obj->base.write_domain != I915_GEM_DOMAIN_GTT)
return;
/* No actual flushing is required for the GTT write domain. Writes
* to it immediately go to main memory as far as we know, so there's
* no chipset flush. It also doesn't land in render cache.
*
* However, we do have to enforce the order so that all writes through
* the GTT land before any writes to the device, such as updates to
* the GATT itself.
*/
wmb();
old_write_domain = obj->base.write_domain;
obj->base.write_domain = 0;
}
/** Flushes the CPU write domain for the object if it's dirty. */
static void
@ -1258,9 +1544,6 @@ i915_gem_object_flush_cpu_write_domain(struct drm_i915_gem_object *obj)
old_write_domain = obj->base.write_domain;
obj->base.write_domain = 0;
// trace_i915_gem_object_change_domain(obj,
// obj->base.read_domains,
// old_write_domain);
}
/**
@ -1363,10 +1646,7 @@ int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
obj->base.read_domains = I915_GEM_DOMAIN_CPU;
obj->base.write_domain = I915_GEM_DOMAIN_CPU;
trace_i915_gem_object_change_domain(obj,
old_read_domains,
old_write_domain);
}
}
obj->cache_level = cache_level;
return 0;
@ -1433,34 +1713,110 @@ i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
BUG_ON((obj->base.write_domain & ~I915_GEM_DOMAIN_GTT) != 0);
obj->base.read_domains |= I915_GEM_DOMAIN_GTT;
// trace_i915_gem_object_change_domain(obj,
// old_read_domains,
// old_write_domain);
return 0;
}
int
i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj)
{
int ret;
if ((obj->base.read_domains & I915_GEM_GPU_DOMAINS) == 0)
return 0;
if (obj->base.write_domain & I915_GEM_GPU_DOMAINS) {
ret = i915_gem_flush_ring(obj->ring, 0, obj->base.write_domain);
if (ret)
return ret;
}
/* Ensure that we invalidate the GPU's caches and TLBs. */
obj->base.read_domains &= ~I915_GEM_GPU_DOMAINS;
return i915_gem_object_wait_rendering(obj);
}
/**
* Moves a single object to the CPU read, and possibly write domain.
*
* This function returns when the move is complete, including waiting on
* flushes to occur.
*/
static int
i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write)
{
uint32_t old_write_domain, old_read_domains;
int ret;
if (obj->base.write_domain == I915_GEM_DOMAIN_CPU)
return 0;
ret = i915_gem_object_flush_gpu_write_domain(obj);
if (ret)
return ret;
ret = i915_gem_object_wait_rendering(obj);
if (ret)
return ret;
i915_gem_object_flush_gtt_write_domain(obj);
/* If we have a partially-valid cache of the object in the CPU,
* finish invalidating it and free the per-page flags.
*/
i915_gem_object_set_to_full_cpu_read_domain(obj);
old_write_domain = obj->base.write_domain;
old_read_domains = obj->base.read_domains;
/* Flush the CPU cache if it's still invalid. */
if ((obj->base.read_domains & I915_GEM_DOMAIN_CPU) == 0) {
i915_gem_clflush_object(obj);
obj->base.read_domains |= I915_GEM_DOMAIN_CPU;
}
/* It should now be out of any other write domains, and we can update
* the domain values for our changes.
*/
BUG_ON((obj->base.write_domain & ~I915_GEM_DOMAIN_CPU) != 0);
/* If we're writing through the CPU, then the GPU read domains will
* need to be invalidated at next use.
*/
if (write) {
obj->base.read_domains = I915_GEM_DOMAIN_CPU;
obj->base.write_domain = I915_GEM_DOMAIN_CPU;
}
return 0;
}
/**
* Moves the object from a partially CPU read to a full one.
*
* Note that this only resolves i915_gem_object_set_cpu_read_domain_range(),
* and doesn't handle transitioning from !(read_domains & I915_GEM_DOMAIN_CPU).
*/
static void
i915_gem_object_set_to_full_cpu_read_domain(struct drm_i915_gem_object *obj)
{
if (!obj->page_cpu_valid)
return;
/* If we're partially in the CPU read domain, finish moving it in.
*/
if (obj->base.read_domains & I915_GEM_DOMAIN_CPU) {
}
/* Free the page_cpu_valid mappings which are now stale, whether
* or not we've got I915_GEM_DOMAIN_CPU.
*/
kfree(obj->page_cpu_valid);
obj->page_cpu_valid = NULL;
}
@ -1495,7 +1851,6 @@ i915_gem_object_pin(struct drm_i915_gem_object *obj,
int ret;
BUG_ON(obj->pin_count == DRM_I915_GEM_OBJECT_MAX_PIN_COUNT);
// WARN_ON(i915_verify_lists(dev));
#if 0
if (obj->gtt_space != NULL) {
@ -1529,12 +1884,25 @@ i915_gem_object_pin(struct drm_i915_gem_object *obj,
}
obj->pin_mappable |= map_and_fenceable;
// WARN_ON(i915_verify_lists(dev));
return 0;
}
void
i915_gem_object_unpin(struct drm_i915_gem_object *obj)
{
struct drm_device *dev = obj->base.dev;
drm_i915_private_t *dev_priv = dev->dev_private;
BUG_ON(obj->pin_count == 0);
BUG_ON(obj->gtt_space == NULL);
if (--obj->pin_count == 0) {
if (!obj->active)
list_move_tail(&obj->mm_list,
&dev_priv->mm.inactive_list);
obj->pin_mappable = false;
}
}
@ -1619,17 +1987,56 @@ struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
return obj;
}
int i915_gem_init_object(struct drm_gem_object *obj)
{
BUG();
return 0;
}
static void i915_gem_free_object_tail(struct drm_i915_gem_object *obj)
{
struct drm_device *dev = obj->base.dev;
drm_i915_private_t *dev_priv = dev->dev_private;
int ret;
ENTER();
ret = i915_gem_object_unbind(obj);
if (ret == -ERESTARTSYS) {
list_move(&obj->mm_list,
&dev_priv->mm.deferred_free_list);
return;
}
// if (obj->base.map_list.map)
// drm_gem_free_mmap_offset(&obj->base);
drm_gem_object_release(&obj->base);
i915_gem_info_remove_obj(dev_priv, obj->base.size);
kfree(obj->page_cpu_valid);
kfree(obj->bit_17);
kfree(obj);
LEAVE();
}
void i915_gem_free_object(struct drm_gem_object *gem_obj)
{
struct drm_i915_gem_object *obj = to_intel_bo(gem_obj);
struct drm_device *dev = obj->base.dev;
ENTER();
while (obj->pin_count > 0)
i915_gem_object_unpin(obj);
// if (obj->phys_obj)
// i915_gem_detach_phys_object(dev, obj);
i915_gem_free_object_tail(obj);
LEAVE();
}
@ -1784,9 +2191,6 @@ i915_gem_load(struct drm_device *dev)
init_ring_lists(&dev_priv->ring[i]);
for (i = 0; i < I915_MAX_NUM_FENCES; i++)
INIT_LIST_HEAD(&dev_priv->fence_regs[i].lru_list);
// INIT_DELAYED_WORK(&dev_priv->mm.retire_work,
// i915_gem_retire_work_handler);
// init_completion(&dev_priv->error_completion);
/* On GEN3 we really need to make sure the ARB C3 LP bit is set */
if (IS_GEN3(dev)) {
@ -1811,7 +2215,6 @@ i915_gem_load(struct drm_device *dev)
}
i915_gem_detect_bit_6_swizzle(dev);
// init_waitqueue_head(&dev_priv->pending_flip_queue);
dev_priv->mm.interruptible = true;

37
drivers/video/drm/i915/i915_gem_gtt.c
View File

@ -53,8 +53,29 @@ static unsigned int cache_level_to_agp_type(struct drm_device *dev,
}
}
#if 0
static bool do_idling(struct drm_i915_private *dev_priv)
{
bool ret = dev_priv->mm.interruptible;
if (unlikely(dev_priv->mm.gtt->do_idle_maps)) {
dev_priv->mm.interruptible = false;
if (i915_gpu_idle(dev_priv->dev)) {
DRM_ERROR("Couldn't idle GPU\n");
/* Wait a bit, in hopes it avoids the hang */
udelay(10);
}
}
return ret;
}
static void undo_idling(struct drm_i915_private *dev_priv, bool interruptible)
{
if (unlikely(dev_priv->mm.gtt->do_idle_maps))
dev_priv->mm.interruptible = interruptible;
}
#if 0
void i915_gem_restore_gtt_mappings(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@ -123,15 +144,23 @@ void i915_gem_gtt_rebind_object(struct drm_i915_gem_object *obj,
agp_type);
}
#endif
void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj)
{
struct drm_device *dev = obj->base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
bool interruptible;
interruptible = do_idling(dev_priv);
intel_gtt_clear_range(obj->gtt_space->start >> PAGE_SHIFT,
obj->base.size >> PAGE_SHIFT);
if (obj->sg_list) {
intel_gtt_unmap_memory(obj->sg_list, obj->num_sg);
// intel_gtt_unmap_memory(obj->sg_list, obj->num_sg);
obj->sg_list = NULL;
}
}
#endif
undo_idling(dev_priv, interruptible);
}

12
drivers/video/drm/i915/intel_display.c
View File

@ -2006,7 +2006,7 @@ intel_pin_and_fence_fb_obj(struct drm_device *dev,
return 0;
err_unpin:
// i915_gem_object_unpin(obj);
i915_gem_object_unpin(obj);
err_interruptible:
dev_priv->mm.interruptible = true;
return ret;
@ -2223,7 +2223,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
ret = intel_pipe_set_base_atomic(crtc, crtc->fb, x, y,
LEAVE_ATOMIC_MODE_SET);
if (ret) {
// i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj);
i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj);
mutex_unlock(&dev->struct_mutex);
DRM_ERROR("failed to update base address\n");
LEAVE();
@ -3310,7 +3310,7 @@ static void intel_crtc_disable(struct drm_crtc *crtc)
if (crtc->fb) {
mutex_lock(&dev->struct_mutex);
// i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj);
i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj);
mutex_unlock(&dev->struct_mutex);
}
}
@ -6299,7 +6299,7 @@ intel_framebuffer_create_for_mode(struct drm_device *dev,
int depth, int bpp)
{
struct drm_i915_gem_object *obj;
struct drm_mode_fb_cmd mode_cmd;
struct drm_mode_fb_cmd2 mode_cmd;
// obj = i915_gem_alloc_object(dev,
// intel_framebuffer_size_for_mode(mode, bpp));
@ -6658,8 +6658,6 @@ static void intel_increase_pllclock(struct drm_crtc *crtc)
LEAVE();
/* Schedule downclock */
// mod_timer(&intel_crtc->idle_timer, jiffies +
// msecs_to_jiffies(CRTC_IDLE_TIMEOUT));
}
@ -6892,8 +6890,6 @@ static void intel_crtc_init(struct drm_device *dev, int pipe)
intel_crtc->busy = false;
// setup_timer(&intel_crtc->idle_timer, intel_crtc_idle_timer,
// (unsigned long)intel_crtc);
}

6
drivers/video/drm/i915/intel_fb.c
View File

@ -144,7 +144,7 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
obj->gtt_space = &lfb_vm_node;
obj->gtt_offset = 0;
obj->pin_count = 1;
obj->pin_count = 2;
}
/***********************************************************************/
@ -200,9 +200,9 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
return 0;
out_unpin:
// i915_gem_object_unpin(obj);
i915_gem_object_unpin(obj);
out_unref:
// drm_gem_object_unreference(&obj->base);
drm_gem_object_unreference(&obj->base);
mutex_unlock(&dev->struct_mutex);
out:
return ret;

43
drivers/video/drm/i915/intel_ringbuffer.c
View File

@ -364,9 +364,9 @@ init_pipe_control(struct intel_ring_buffer *ring)
return 0;
err_unpin:
// i915_gem_object_unpin(obj);
i915_gem_object_unpin(obj);
err_unref:
// drm_gem_object_unreference(&obj->base);
drm_gem_object_unreference(&obj->base);
err:
kfree(pc);
return ret;
@ -383,8 +383,8 @@ cleanup_pipe_control(struct intel_ring_buffer *ring)
obj = pc->obj;
// kunmap(obj->pages[0]);
// i915_gem_object_unpin(obj);
// drm_gem_object_unreference(&obj->base);
i915_gem_object_unpin(obj);
drm_gem_object_unreference(&obj->base);
kfree(pc);
ring->private = NULL;
@ -948,8 +948,8 @@ static void cleanup_status_page(struct intel_ring_buffer *ring)
return;
kunmap(obj->pages[0]);
// i915_gem_object_unpin(obj);
// drm_gem_object_unreference(&obj->base);
i915_gem_object_unpin(obj);
drm_gem_object_unreference(&obj->base);
ring->status_page.obj = NULL;
memset(&dev_priv->hws_map, 0, sizeof(dev_priv->hws_map));
@ -992,9 +992,9 @@ static int init_status_page(struct intel_ring_buffer *ring)
return 0;
err_unpin:
// i915_gem_object_unpin(obj);
i915_gem_object_unpin(obj);
err_unref:
// drm_gem_object_unreference(&obj->base);
drm_gem_object_unreference(&obj->base);
err:
return ret;
}
@ -1065,12 +1065,11 @@ int intel_init_ring_buffer(struct drm_device *dev,
return 0;
err_unmap:
// drm_core_ioremapfree(&ring->map, dev);
FreeKernelSpace(ring->virtual_start);
err_unpin:
// i915_gem_object_unpin(obj);
i915_gem_object_unpin(obj);
err_unref:
// drm_gem_object_unreference(&obj->base);
drm_gem_object_unreference(&obj->base);
ring->obj = NULL;
err_hws:
// cleanup_status_page(ring);
@ -1096,8 +1095,8 @@ void intel_cleanup_ring_buffer(struct intel_ring_buffer *ring)
// drm_core_ioremapfree(&ring->map, ring->dev);
// i915_gem_object_unpin(ring->obj);
// drm_gem_object_unreference(&ring->obj->base);
i915_gem_object_unpin(ring->obj);
drm_gem_object_unreference(&ring->obj->base);
ring->obj = NULL;
if (ring->cleanup)
@ -1156,7 +1155,7 @@ int intel_wait_ring_buffer(struct intel_ring_buffer *ring, int n)
};
}
// trace_i915_ring_wait_begin(ring);
end = jiffies + 3 * HZ;
do {
ring->head = I915_READ_HEAD(ring);
@ -1174,7 +1173,6 @@ int intel_wait_ring_buffer(struct intel_ring_buffer *ring, int n)
return -EAGAIN;
};
} while (!time_after(jiffies, end));
// trace_i915_ring_wait_end(ring);
LEAVE();
return -EBUSY;
@ -1411,21 +1409,26 @@ static int blt_ring_init(struct intel_ring_buffer *ring)
ret = i915_gem_object_pin(obj, 4096, true);
if (ret) {
// drm_gem_object_unreference(&obj->base);
drm_gem_object_unreference(&obj->base);
return ret;
}
ptr = ioremap(obj->pages[0], 4096);
ptr = MapIoMem(obj->pages[0], 4096, PG_SW);
obj->mapped = ptr;
*ptr++ = MI_BATCH_BUFFER_END;
*ptr++ = MI_NOOP;
// iounmap(obj->pages[0]);
ret = i915_gem_object_set_to_gtt_domain(obj, false);
if (ret) {
// i915_gem_object_unpin(obj);
// drm_gem_object_unreference(&obj->base);
i915_gem_object_unpin(obj);
drm_gem_object_unreference(&obj->base);
FreeKernelSpace(ptr);
obj->mapped = NULL;
return ret;
}
FreeKernelSpace(ptr);
obj->mapped = NULL;
ring->private = obj;
}

4
drivers/video/drm/i915/intel_sprite.c
View File

@ -501,7 +501,7 @@ intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
intel_wait_for_vblank(dev, to_intel_crtc(crtc)->pipe);
mutex_lock(&dev->struct_mutex);
}
// i915_gem_object_unpin(old_obj);
i915_gem_object_unpin(old_obj);
}
out_unlock:
@ -528,7 +528,7 @@ intel_disable_plane(struct drm_plane *plane)
goto out;
mutex_lock(&dev->struct_mutex);
// i915_gem_object_unpin(intel_plane->obj);
i915_gem_object_unpin(intel_plane->obj);
intel_plane->obj = NULL;
mutex_unlock(&dev->struct_mutex);
out:

16
drivers/video/drm/i915/kms_display.c
View File

@ -428,7 +428,7 @@ int init_cursor(cursor_t *cursor)
ret = i915_gem_object_pin(obj, CURSOR_WIDTH*CURSOR_HEIGHT*4, true);
if (ret) {
// drm_gem_object_unreference(&obj->base);
drm_gem_object_unreference(&obj->base);
return ret;
}
@ -440,8 +440,8 @@ int init_cursor(cursor_t *cursor)
if (unlikely(bits == NULL))
{
// i915_gem_object_unpin(obj);
// drm_gem_object_unreference(&obj->base);
i915_gem_object_unpin(obj);
drm_gem_object_unreference(&obj->base);
return -ENOMEM;
};
cursor->cobj = obj;
@ -807,7 +807,7 @@ int blit_video(u32 hbitmap, int dst_x, int dst_y,
if( n & 1)
b[n++] = MI_NOOP;
// i915_gem_object_set_to_gtt_domain(obj, false);
i915_gem_object_set_to_gtt_domain(bitmap->obj, false);
if (HAS_BLT(main_device))
ring = &dev_priv->ring[BCS];
@ -816,9 +816,11 @@ int blit_video(u32 hbitmap, int dst_x, int dst_y,
ring->dispatch_execbuffer(ring, cmd_offset, n*4);
intel_ring_begin(ring, 4);
// if (ret)
// return ret;
int ret;
ret = intel_ring_begin(ring, 4);
if (ret)
return ret;
intel_ring_emit(ring, MI_FLUSH_DW);
intel_ring_emit(ring, 0);

63
drivers/video/drm/i915/main.c
View File

@ -14,6 +14,8 @@
#include "bitmap.h"
void cpu_detect();
void parse_cmdline(char *cmdline, char *log);
int _stdcall display_handler(ioctl_t *io);
int init_agp(void);
@ -24,6 +26,8 @@ int video_blit(uint64_t src_offset, int x, int y,
static char log[256];
int x86_clflush_size;
int i915_modeset = 1;
u32_t drvEntry(int action, char *cmdline)
@ -71,15 +75,20 @@ u32_t drvEntry(int action, char *cmdline)
return err;
};
#define API_VERSION 0x01000100
#define CURRENT_API 0x0200 /* 2.00 */
#define COMPATIBLE_API 0x0100 /* 1.00 */
#define SRV_GETVERSION 0
#define SRV_ENUM_MODES 1
#define SRV_SET_MODE 2
#define API_VERSION (COMPATIBLE_API << 16) | CURRENT_API
#define DISPLAY_VERSION CURRENT_API
#define SRV_CREATE_BITMAP 10
#define SRV_BLIT_VIDEO 20
#define SRV_GETVERSION 0
#define SRV_ENUM_MODES 1
#define SRV_SET_MODE 2
#define SRV_CREATE_SURFACE 10
#define SRV_BLIT_VIDEO 20
#define check_input(size) \
if( unlikely((inp==NULL)||(io->inp_size != (size))) ) \
@ -102,7 +111,7 @@ int _stdcall display_handler(ioctl_t *io)
{
case SRV_GETVERSION:
check_output(4);
*outp = API_VERSION;
*outp = DISPLAY_VERSION;
retval = 0;
break;
@ -123,9 +132,9 @@ int _stdcall display_handler(ioctl_t *io)
retval = set_user_mode((videomode_t*)inp);
break;
case SRV_CREATE_BITMAP:
check_input(5);
retval = create_bitmap((struct ubitmap*)inp);
case SRV_CREATE_SURFACE:
// check_input(8);
retval = create_surface((struct io_call_10*)inp);
break;
@ -202,3 +211,37 @@ void parse_cmdline(char *cmdline, char *log)
};
};
static inline void __cpuid(unsigned int *eax, unsigned int *ebx,
unsigned int *ecx, unsigned int *edx)
{
/* ecx is often an input as well as an output. */
asm volatile(
"cpuid"
: "=a" (*eax),
"=b" (*ebx),
"=c" (*ecx),
"=d" (*edx)
: "" (*eax), "2" (*ecx));
}
static inline void cpuid(unsigned int op,
unsigned int *eax, unsigned int *ebx,
unsigned int *ecx, unsigned int *edx)
{
*eax = op;
*ecx = 0;
__cpuid(eax, ebx, ecx, edx);
}
void cpu_detect()
{
u32 junk, tfms, cap0, misc;
cpuid(0x00000001, &tfms, &misc, &junk, &cap0);
if (cap0 & (1<<19))
{
x86_clflush_size = ((misc >> 8) & 0xff) * 8;
}
}