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Commit bd07928c authored by Shaohua Li's avatar Shaohua Li Committed by Ingo Molnar
Browse files

agp: add agp_generic_destroy_pages() 



Add agp_generic_destroy_pages(), it uses new pageattr array interface API.

Signed-off-by: default avatarDave Airlie <airlied@gmail.com>
Signed-off-by: default avatarShaohua Li <shaohua.li@intel.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 37acee10

drivers/char/agp/agp.h

+2 −0
Original line number Diff line number Diff line
@@ -118,6 +118,7 @@ struct agp_bridge_driver { 
	void *(*agp_alloc_page)(struct agp_bridge_data *);

	int (*agp_alloc_pages)(struct agp_bridge_data *, struct agp_memory *, size_t);

	void (*agp_destroy_page)(void *, int flags);

	void (*agp_destroy_pages)(struct agp_memory *);

	int (*agp_type_to_mask_type) (struct agp_bridge_data *, int);

	void (*chipset_flush)(struct agp_bridge_data *);

};
@@ -278,6 +279,7 @@ void *agp_generic_alloc_page(struct agp_bridge_data *bridge); 
int agp_generic_alloc_pages(struct agp_bridge_data *agp_bridge,

			    struct agp_memory *memory, size_t page_count);

void agp_generic_destroy_page(void *addr, int flags);

void agp_generic_destroy_pages(struct agp_memory *memory);

void agp_free_key(int key);

int agp_num_entries(void);

u32 agp_collect_device_status(struct agp_bridge_data *bridge, u32 mode, u32 command);

drivers/char/agp/generic.c

+47 −8
Original line number Diff line number Diff line
@@ -201,16 +201,24 @@ void agp_free_memory(struct agp_memory *curr) 
		return;

	}

	if (curr->page_count != 0) {

		if (curr->bridge->driver->agp_destroy_pages) {

			curr->bridge->driver->agp_destroy_pages(curr);

		} else {



			for (i = 0; i < curr->page_count; i++) {

			curr->memory[i] = (unsigned long)gart_to_virt(curr->memory[i]);

			curr->bridge->driver->agp_destroy_page((void *)curr->memory[i],

				curr->memory[i] = (unsigned long)gart_to_virt(

					curr->memory[i]);

				curr->bridge->driver->agp_destroy_page(

					(void *)curr->memory[i],

					AGP_PAGE_DESTROY_UNMAP);

			}

			for (i = 0; i < curr->page_count; i++) {

			curr->bridge->driver->agp_destroy_page((void *)curr->memory[i],

				curr->bridge->driver->agp_destroy_page(

					(void *)curr->memory[i],

					AGP_PAGE_DESTROY_FREE);

			}

		}

	}

	agp_free_key(curr->key);

	agp_free_page_array(curr);

	kfree(curr);
@@ -1236,6 +1244,37 @@ void *agp_generic_alloc_page(struct agp_bridge_data *bridge) 
}

EXPORT_SYMBOL(agp_generic_alloc_page);



void agp_generic_destroy_pages(struct agp_memory *mem)

{

	int i;

	void *addr;

	struct page *page;



	if (!mem)

		return;



	for (i = 0; i < mem->page_count; i++)

		mem->memory[i] = (unsigned long)gart_to_virt(mem->memory[i]);



#ifdef CONFIG_X86

	set_memory_array_wb(mem->memory, mem->page_count);

#endif



	for (i = 0; i < mem->page_count; i++) {

		addr = (void *)mem->memory[i];

		page = virt_to_page(addr);



#ifndef CONFIG_X86

		unmap_page_from_agp(page);

#endif



		put_page(page);

		free_page((unsigned long)addr);

		atomic_dec(&agp_bridge->current_memory_agp);

		mem->memory[i] = 0;

	}

}

EXPORT_SYMBOL(agp_generic_destroy_pages);



void agp_generic_destroy_page(void *addr, int flags)

{

drivers/char/agp/intel-agp.c

+14 −0
Original line number Diff line number Diff line
@@ -1705,6 +1705,7 @@ static const struct agp_bridge_driver intel_generic_driver = { 
	.agp_alloc_page		= agp_generic_alloc_page,

	.agp_alloc_pages        = agp_generic_alloc_pages,

	.agp_destroy_page	= agp_generic_destroy_page,

	.agp_destroy_pages      = agp_generic_destroy_pages,

	.agp_type_to_mask_type  = agp_generic_type_to_mask_type,

};
@@ -1731,6 +1732,7 @@ static const struct agp_bridge_driver intel_810_driver = { 
	.agp_alloc_page		= agp_generic_alloc_page,

	.agp_alloc_pages        = agp_generic_alloc_pages,

	.agp_destroy_page	= agp_generic_destroy_page,

	.agp_destroy_pages      = agp_generic_destroy_pages,

	.agp_type_to_mask_type  = agp_generic_type_to_mask_type,

};
@@ -1756,6 +1758,7 @@ static const struct agp_bridge_driver intel_815_driver = { 
	.agp_alloc_page		= agp_generic_alloc_page,

	.agp_alloc_pages        = agp_generic_alloc_pages,

	.agp_destroy_page	= agp_generic_destroy_page,

	.agp_destroy_pages      = agp_generic_destroy_pages,

	.agp_type_to_mask_type	= agp_generic_type_to_mask_type,

};
@@ -1782,6 +1785,7 @@ static const struct agp_bridge_driver intel_830_driver = { 
	.agp_alloc_page		= agp_generic_alloc_page,

	.agp_alloc_pages        = agp_generic_alloc_pages,

	.agp_destroy_page	= agp_generic_destroy_page,

	.agp_destroy_pages      = agp_generic_destroy_pages,

	.agp_type_to_mask_type  = intel_i830_type_to_mask_type,

	.chipset_flush		= intel_i830_chipset_flush,

};
@@ -1808,6 +1812,7 @@ static const struct agp_bridge_driver intel_820_driver = { 
	.agp_alloc_page		= agp_generic_alloc_page,

	.agp_alloc_pages        = agp_generic_alloc_pages,

	.agp_destroy_page	= agp_generic_destroy_page,

	.agp_destroy_pages      = agp_generic_destroy_pages,

	.agp_type_to_mask_type  = agp_generic_type_to_mask_type,

};
@@ -1833,6 +1838,7 @@ static const struct agp_bridge_driver intel_830mp_driver = { 
	.agp_alloc_page		= agp_generic_alloc_page,

	.agp_alloc_pages        = agp_generic_alloc_pages,

	.agp_destroy_page	= agp_generic_destroy_page,

	.agp_destroy_pages      = agp_generic_destroy_pages,

	.agp_type_to_mask_type  = agp_generic_type_to_mask_type,

};
@@ -1858,6 +1864,7 @@ static const struct agp_bridge_driver intel_840_driver = { 
	.agp_alloc_page		= agp_generic_alloc_page,

	.agp_alloc_pages        = agp_generic_alloc_pages,

	.agp_destroy_page	= agp_generic_destroy_page,

	.agp_destroy_pages      = agp_generic_destroy_pages,

	.agp_type_to_mask_type  = agp_generic_type_to_mask_type,

};
@@ -1883,6 +1890,7 @@ static const struct agp_bridge_driver intel_845_driver = { 
	.agp_alloc_page		= agp_generic_alloc_page,

	.agp_alloc_pages        = agp_generic_alloc_pages,

	.agp_destroy_page	= agp_generic_destroy_page,

	.agp_destroy_pages      = agp_generic_destroy_pages,

	.agp_type_to_mask_type  = agp_generic_type_to_mask_type,

	.chipset_flush		= intel_i830_chipset_flush,

};
@@ -1909,6 +1917,7 @@ static const struct agp_bridge_driver intel_850_driver = { 
	.agp_alloc_page		= agp_generic_alloc_page,

	.agp_alloc_pages        = agp_generic_alloc_pages,

	.agp_destroy_page	= agp_generic_destroy_page,

	.agp_destroy_pages      = agp_generic_destroy_pages,

	.agp_type_to_mask_type  = agp_generic_type_to_mask_type,

};
@@ -1934,6 +1943,7 @@ static const struct agp_bridge_driver intel_860_driver = { 
	.agp_alloc_page		= agp_generic_alloc_page,

	.agp_alloc_pages        = agp_generic_alloc_pages,

	.agp_destroy_page	= agp_generic_destroy_page,

	.agp_destroy_pages      = agp_generic_destroy_pages,

	.agp_type_to_mask_type  = agp_generic_type_to_mask_type,

};
@@ -1960,6 +1970,7 @@ static const struct agp_bridge_driver intel_915_driver = { 
	.agp_alloc_page		= agp_generic_alloc_page,

	.agp_alloc_pages        = agp_generic_alloc_pages,

	.agp_destroy_page	= agp_generic_destroy_page,

	.agp_destroy_pages      = agp_generic_destroy_pages,

	.agp_type_to_mask_type  = intel_i830_type_to_mask_type,

	.chipset_flush		= intel_i915_chipset_flush,

};
@@ -1987,6 +1998,7 @@ static const struct agp_bridge_driver intel_i965_driver = { 
	.agp_alloc_page		= agp_generic_alloc_page,

	.agp_alloc_pages        = agp_generic_alloc_pages,

	.agp_destroy_page	= agp_generic_destroy_page,

	.agp_destroy_pages      = agp_generic_destroy_pages,

	.agp_type_to_mask_type	= intel_i830_type_to_mask_type,

	.chipset_flush		= intel_i915_chipset_flush,

};
@@ -2013,6 +2025,7 @@ static const struct agp_bridge_driver intel_7505_driver = { 
	.agp_alloc_page		= agp_generic_alloc_page,

	.agp_alloc_pages        = agp_generic_alloc_pages,

	.agp_destroy_page	= agp_generic_destroy_page,

	.agp_destroy_pages      = agp_generic_destroy_pages,

	.agp_type_to_mask_type  = agp_generic_type_to_mask_type,

};
@@ -2039,6 +2052,7 @@ static const struct agp_bridge_driver intel_g33_driver = { 
	.agp_alloc_page		= agp_generic_alloc_page,

	.agp_alloc_pages        = agp_generic_alloc_pages,

	.agp_destroy_page	= agp_generic_destroy_page,

	.agp_destroy_pages      = agp_generic_destroy_pages,

	.agp_type_to_mask_type	= intel_i830_type_to_mask_type,

	.chipset_flush		= intel_i915_chipset_flush,

};