All TTM driver have been converted to new io_mem_reserve/free
interface which allow driver to choose and return proper io
base, offset to core TTM for ioremapping if necessary. This
patch remove what is now deadcode.
V2 adapt to match with change in first patch of the patchset
V3 update after io_mem_reserve/io_mem_free callback balancing
V4 adjust to minor cleanup
V5 remove the needs ioremap flag
V6 keep the ioremapping facility in TTM
---
drivers/gpu/drm/ttm/ttm_bo.c | 22 ----------------------
drivers/gpu/drm/ttm/ttm_bo_util.c | 19 ++++---------------
include/drm/ttm/ttm_bo_driver.h | 12 ------------
3 files changed, 4 insertions(+), 49 deletions(-)
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index b42e3fa..3b5b094 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -79,8 +79,6 @@ static void ttm_mem_type_debug(struct ttm_bo_device *bdev,
int mem_type)
printk(KERN_ERR TTM_PFX " use_type: %d\n", man->use_type);
printk(KERN_ERR TTM_PFX " flags: 0x%08X\n", man->flags);
printk(KERN_ERR TTM_PFX " gpu_offset: 0x%08lX\n", man->gpu_offset);
- printk(KERN_ERR TTM_PFX " io_offset: 0x%08lX\n", man->io_offset);
- printk(KERN_ERR TTM_PFX " io_size: %ld\n", man->io_size);
printk(KERN_ERR TTM_PFX " size: %llu\n", man->size);
printk(KERN_ERR TTM_PFX " available_caching: 0x%08X\n",
man->available_caching);
@@ -1563,26 +1561,6 @@ bool ttm_mem_reg_is_pci(struct ttm_bo_device *bdev,
struct ttm_mem_reg *mem)
return true;
}
-int ttm_bo_pci_offset(struct ttm_bo_device *bdev,
- struct ttm_mem_reg *mem,
- unsigned long *bus_base,
- unsigned long *bus_offset, unsigned long *bus_size)
-{
- struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
-
- *bus_size = 0;
- if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
- return -EINVAL;
-
- if (ttm_mem_reg_is_pci(bdev, mem)) {
- *bus_offset = mem->mm_node->start << PAGE_SHIFT;
- *bus_size = mem->num_pages << PAGE_SHIFT;
- *bus_base = man->io_offset + (uintptr_t)man->io_addr;
- }
-
- return 0;
-}
-
void ttm_bo_unmap_virtual(struct ttm_buffer_object *bo)
{
struct ttm_bo_device *bdev = bo->bdev;
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c
b/drivers/gpu/drm/ttm/ttm_bo_util.c
index d58eeb5..333b401 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -83,24 +83,13 @@ EXPORT_SYMBOL(ttm_bo_move_ttm);
int ttm_mem_io_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
{
- struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
int ret;
- if (bdev->driver->io_mem_reserve) {
- if (!mem->bus.io_reserved) {
- mem->bus.io_reserved = true;
- ret = bdev->driver->io_mem_reserve(bdev, mem);
- if (unlikely(ret != 0))
- return ret;
- }
- } else {
- ret = ttm_bo_pci_offset(bdev, mem, &mem->bus.base,
&mem->bus.offset, &mem->bus.size);
+ if (!mem->bus.io_reserved) {
+ mem->bus.io_reserved = true;
+ ret = bdev->driver->io_mem_reserve(bdev, mem);
if (unlikely(ret != 0))
return ret;
- mem->bus.addr = NULL;
- if (!(man->flags & TTM_MEMTYPE_FLAG_NEEDS_IOREMAP))
- mem->bus.addr = (void *)(((u8 *)man->io_addr) +
mem->bus.offset);
- mem->bus.is_iomem = (mem->bus.size > 0) ? 1 : 0;
}
return 0;
}
@@ -149,7 +138,7 @@ void ttm_mem_reg_iounmap(struct ttm_bo_device *bdev, struct
ttm_mem_reg *mem,
man = &bdev->man[mem->mem_type];
- if (virtual && (man->flags & TTM_MEMTYPE_FLAG_NEEDS_IOREMAP ||
mem->bus.addr == NULL))
+ if (virtual && mem->bus.addr == NULL)
iounmap(virtual);
ttm_mem_io_free(bdev, mem);
}
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index da39865..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;
--
1.7.0.1
------------------------------------------------------------------------------
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