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authorDave Airlie <airlied@redhat.com>2010-04-20 14:15:09 +1000
committerDave Airlie <airlied@redhat.com>2010-04-20 14:15:09 +1000
commit7547a917fa5f3b2406f52c7dcf7ec9ad3c8532eb (patch)
tree59b0d0e9b6c251c4df5799b93395454592004d57 /include/drm/ttm
parenta8089e849a32c5b6bfd6c88dbd09c0ea4a779b71 (diff)
parent6b8b1786a8c29ce6e32298b93ac8d4a18a2b11c4 (diff)
downloadop-kernel-dev-7547a917fa5f3b2406f52c7dcf7ec9ad3c8532eb.zip
op-kernel-dev-7547a917fa5f3b2406f52c7dcf7ec9ad3c8532eb.tar.gz
Merge branch 'drm-ttm-unmappable' into drm-core-next
* drm-ttm-unmappable: drm/radeon/kms: enable use of unmappable VRAM V2 drm/ttm: remove io_ field from TTM V6 drm/vmwgfx: add support for new TTM fault callback V5 drm/nouveau/kms: add support for new TTM fault callback V5 drm/radeon/kms: add support for new fault callback V7 drm/ttm: ttm_fault callback to allow driver to handle bo placement V6 drm/ttm: split no_wait argument in 2 GPU or reserve wait Conflicts: drivers/gpu/drm/nouveau/nouveau_bo.c
Diffstat (limited to 'include/drm/ttm')
-rw-r--r--include/drm/ttm/ttm_bo_api.h29
-rw-r--r--include/drm/ttm/ttm_bo_driver.h57
2 files changed, 60 insertions, 26 deletions
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 81eb9f4..3e273e0 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -66,6 +66,26 @@ struct ttm_placement {
const uint32_t *busy_placement;
};
+/**
+ * struct ttm_bus_placement
+ *
+ * @addr: mapped virtual address
+ * @base: bus base address
+ * @is_iomem: is this io memory ?
+ * @size: size in byte
+ * @offset: offset from the base address
+ *
+ * Structure indicating the bus placement of an object.
+ */
+struct ttm_bus_placement {
+ void *addr;
+ unsigned long base;
+ unsigned long size;
+ unsigned long offset;
+ bool is_iomem;
+ bool io_reserved;
+};
+
/**
* struct ttm_mem_reg
@@ -75,6 +95,7 @@ struct ttm_placement {
* @num_pages: Actual size of memory region in pages.
* @page_alignment: Page alignment.
* @placement: Placement flags.
+ * @bus: Placement on io bus accessible to the CPU
*
* Structure indicating the placement and space resources used by a
* buffer object.
@@ -87,6 +108,7 @@ struct ttm_mem_reg {
uint32_t page_alignment;
uint32_t mem_type;
uint32_t placement;
+ struct ttm_bus_placement bus;
};
/**
@@ -274,6 +296,7 @@ struct ttm_bo_kmap_obj {
ttm_bo_map_kmap = 3,
ttm_bo_map_premapped = 4 | TTM_BO_MAP_IOMEM_MASK,
} bo_kmap_type;
+ struct ttm_buffer_object *bo;
};
/**
@@ -313,7 +336,8 @@ extern int ttm_bo_wait(struct ttm_buffer_object *bo, bool lazy,
* @bo: The buffer object.
* @placement: Proposed placement for the buffer object.
* @interruptible: Sleep interruptible if sleeping.
- * @no_wait: Return immediately if the buffer is busy.
+ * @no_wait_reserve: Return immediately if other buffers are busy.
+ * @no_wait_gpu: Return immediately if the GPU is busy.
*
* Changes placement and caching policy of the buffer object
* according proposed placement.
@@ -325,7 +349,8 @@ extern int ttm_bo_wait(struct ttm_buffer_object *bo, bool lazy,
*/
extern int ttm_bo_validate(struct ttm_buffer_object *bo,
struct ttm_placement *placement,
- bool interruptible, bool no_wait);
+ bool interruptible, bool no_wait_reserve,
+ bool no_wait_gpu);
/**
* ttm_bo_unref
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index e929c27..7720b17 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -176,8 +176,6 @@ struct ttm_tt {
#define TTM_MEMTYPE_FLAG_FIXED (1 << 0) /* Fixed (on-card) PCI memory */
#define TTM_MEMTYPE_FLAG_MAPPABLE (1 << 1) /* Memory mappable */
-#define TTM_MEMTYPE_FLAG_NEEDS_IOREMAP (1 << 2) /* Fixed memory needs ioremap
- before kernel access. */
#define TTM_MEMTYPE_FLAG_CMA (1 << 3) /* Can't map aperture */
/**
@@ -189,13 +187,6 @@ struct ttm_tt {
* managed by this memory type.
* @gpu_offset: If used, the GPU offset of the first managed page of
* fixed memory or the first managed location in an aperture.
- * @io_offset: The io_offset of the first managed page of IO memory or
- * the first managed location in an aperture. For TTM_MEMTYPE_FLAG_CMA
- * memory, this should be set to NULL.
- * @io_size: The size of a managed IO region (fixed memory or aperture).
- * @io_addr: Virtual kernel address if the io region is pre-mapped. For
- * TTM_MEMTYPE_FLAG_NEEDS_IOREMAP there is no pre-mapped io map and
- * @io_addr should be set to NULL.
* @size: Size of the managed region.
* @available_caching: A mask of available caching types, TTM_PL_FLAG_XX,
* as defined in ttm_placement_common.h
@@ -221,9 +212,6 @@ struct ttm_mem_type_manager {
bool use_type;
uint32_t flags;
unsigned long gpu_offset;
- unsigned long io_offset;
- unsigned long io_size;
- void *io_addr;
uint64_t size;
uint32_t available_caching;
uint32_t default_caching;
@@ -311,7 +299,8 @@ struct ttm_bo_driver {
*/
int (*move) (struct ttm_buffer_object *bo,
bool evict, bool interruptible,
- bool no_wait, struct ttm_mem_reg *new_mem);
+ bool no_wait_reserve, bool no_wait_gpu,
+ struct ttm_mem_reg *new_mem);
/**
* struct ttm_bo_driver_member verify_access
@@ -351,12 +340,21 @@ struct ttm_bo_driver {
struct ttm_mem_reg *new_mem);
/* notify the driver we are taking a fault on this BO
* and have reserved it */
- void (*fault_reserve_notify)(struct ttm_buffer_object *bo);
+ int (*fault_reserve_notify)(struct ttm_buffer_object *bo);
/**
* notify the driver that we're about to swap out this bo
*/
void (*swap_notify) (struct ttm_buffer_object *bo);
+
+ /**
+ * Driver callback on when mapping io memory (for bo_move_memcpy
+ * for instance). TTM will take care to call io_mem_free whenever
+ * the mapping is not use anymore. io_mem_reserve & io_mem_free
+ * are balanced.
+ */
+ int (*io_mem_reserve)(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem);
+ void (*io_mem_free)(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem);
};
/**
@@ -633,7 +631,8 @@ extern bool ttm_mem_reg_is_pci(struct ttm_bo_device *bdev,
* @proposed_placement: Proposed new placement for the buffer object.
* @mem: A struct ttm_mem_reg.
* @interruptible: Sleep interruptible when sliping.
- * @no_wait: Don't sleep waiting for space to become available.
+ * @no_wait_reserve: Return immediately if other buffers are busy.
+ * @no_wait_gpu: Return immediately if the GPU is busy.
*
* Allocate memory space for the buffer object pointed to by @bo, using
* the placement flags in @mem, potentially evicting other idle buffer objects.
@@ -647,7 +646,8 @@ extern bool ttm_mem_reg_is_pci(struct ttm_bo_device *bdev,
extern int ttm_bo_mem_space(struct ttm_buffer_object *bo,
struct ttm_placement *placement,
struct ttm_mem_reg *mem,
- bool interruptible, bool no_wait);
+ bool interruptible,
+ bool no_wait_reserve, bool no_wait_gpu);
/**
* ttm_bo_wait_for_cpu
*
@@ -682,6 +682,11 @@ extern int ttm_bo_pci_offset(struct ttm_bo_device *bdev,
unsigned long *bus_offset,
unsigned long *bus_size);
+extern int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
+ struct ttm_mem_reg *mem);
+extern void ttm_mem_io_free(struct ttm_bo_device *bdev,
+ struct ttm_mem_reg *mem);
+
extern void ttm_bo_global_release(struct ttm_global_reference *ref);
extern int ttm_bo_global_init(struct ttm_global_reference *ref);
@@ -826,7 +831,8 @@ extern void ttm_bo_unblock_reservation(struct ttm_buffer_object *bo);
*
* @bo: A pointer to a struct ttm_buffer_object.
* @evict: 1: This is an eviction. Don't try to pipeline.
- * @no_wait: Never sleep, but rather return with -EBUSY.
+ * @no_wait_reserve: Return immediately if other buffers are busy.
+ * @no_wait_gpu: Return immediately if the GPU is busy.
* @new_mem: struct ttm_mem_reg indicating where to move.
*
* Optimized move function for a buffer object with both old and
@@ -840,15 +846,16 @@ extern void ttm_bo_unblock_reservation(struct ttm_buffer_object *bo);
*/
extern int ttm_bo_move_ttm(struct ttm_buffer_object *bo,
- bool evict, bool no_wait,
- struct ttm_mem_reg *new_mem);
+ bool evict, bool no_wait_reserve,
+ bool no_wait_gpu, struct ttm_mem_reg *new_mem);
/**
* ttm_bo_move_memcpy
*
* @bo: A pointer to a struct ttm_buffer_object.
* @evict: 1: This is an eviction. Don't try to pipeline.
- * @no_wait: Never sleep, but rather return with -EBUSY.
+ * @no_wait_reserve: Return immediately if other buffers are busy.
+ * @no_wait_gpu: Return immediately if the GPU is busy.
* @new_mem: struct ttm_mem_reg indicating where to move.
*
* Fallback move function for a mappable buffer object in mappable memory.
@@ -862,8 +869,8 @@ extern int ttm_bo_move_ttm(struct ttm_buffer_object *bo,
*/
extern int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
- bool evict,
- bool no_wait, struct ttm_mem_reg *new_mem);
+ bool evict, bool no_wait_reserve,
+ bool no_wait_gpu, struct ttm_mem_reg *new_mem);
/**
* ttm_bo_free_old_node
@@ -882,7 +889,8 @@ extern void ttm_bo_free_old_node(struct ttm_buffer_object *bo);
* @sync_obj_arg: An argument to pass to the sync object idle / wait
* functions.
* @evict: This is an evict move. Don't return until the buffer is idle.
- * @no_wait: Never sleep, but rather return with -EBUSY.
+ * @no_wait_reserve: Return immediately if other buffers are busy.
+ * @no_wait_gpu: Return immediately if the GPU is busy.
* @new_mem: struct ttm_mem_reg indicating where to move.
*
* Accelerated move function to be called when an accelerated move
@@ -896,7 +904,8 @@ extern void ttm_bo_free_old_node(struct ttm_buffer_object *bo);
extern int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
void *sync_obj,
void *sync_obj_arg,
- bool evict, bool no_wait,
+ bool evict, bool no_wait_reserve,
+ bool no_wait_gpu,
struct ttm_mem_reg *new_mem);
/**
* ttm_io_prot
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