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Commit ac1b01b0 authored by Patrik Jakobsson's avatar Patrik Jakobsson
Browse files

drm/gma500: Give MMU code it's own header file 



Signed-off-by: default avatarPatrik Jakobsson <patrik.r.jakobsson@gmail.com>
parent 64a4aff2

drivers/gpu/drm/gma500/mmu.c

+1 −44
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include <drm/drmP.h>

#include "psb_drv.h"

#include "psb_reg.h"

#include "mmu.h"



/*

 * Code for the SGX MMU:
@@ -47,50 +48,6 @@ 
 * but on average it should be fast.

 */



struct psb_mmu_driver {

	/* protects driver- and pd structures. Always take in read mode

	 * before taking the page table spinlock.

	 */

	struct rw_semaphore sem;



	/* protects page tables, directory tables and pt tables.

	 * and pt structures.

	 */

	spinlock_t lock;



	atomic_t needs_tlbflush;

	atomic_t *msvdx_mmu_invaldc;

	struct psb_mmu_pd *default_pd;

	uint32_t bif_ctrl;

	int has_clflush;

	int clflush_add;

	unsigned long clflush_mask;



	struct drm_device *dev;

};



struct psb_mmu_pd;



struct psb_mmu_pt {

	struct psb_mmu_pd *pd;

	uint32_t index;

	uint32_t count;

	struct page *p;

	uint32_t *v;

};



struct psb_mmu_pd {

	struct psb_mmu_driver *driver;

	int hw_context;

	struct psb_mmu_pt **tables;

	struct page *p;

	struct page *dummy_pt;

	struct page *dummy_page;

	uint32_t pd_mask;

	uint32_t invalid_pde;

	uint32_t invalid_pte;

};



static inline uint32_t psb_mmu_pt_index(uint32_t offset)

{

	return (offset >> PSB_PTE_SHIFT) & 0x3FF;

drivers/gpu/drm/gma500/mmu.h

0 → 100644
+93 −0
Original line number Diff line number Diff line 
/**************************************************************************

 * Copyright (c) 2007-2011, Intel Corporation.

 * All Rights Reserved.

 *

 * This program is free software; you can redistribute it and/or modify it

 * under the terms and conditions of the GNU General Public License,

 * version 2, as published by the Free Software Foundation.

 *

 * This program is distributed in the hope it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for

 * more details.

 **************************************************************************/



#ifndef __MMU_H

#define __MMU_H



struct psb_mmu_driver {

	/* protects driver- and pd structures. Always take in read mode

	 * before taking the page table spinlock.

	 */

	struct rw_semaphore sem;



	/* protects page tables, directory tables and pt tables.

	 * and pt structures.

	 */

	spinlock_t lock;



	atomic_t needs_tlbflush;

	atomic_t *msvdx_mmu_invaldc;

	struct psb_mmu_pd *default_pd;

	uint32_t bif_ctrl;

	int has_clflush;

	int clflush_add;

	unsigned long clflush_mask;



	struct drm_device *dev;

};



struct psb_mmu_pd;



struct psb_mmu_pt {

	struct psb_mmu_pd *pd;

	uint32_t index;

	uint32_t count;

	struct page *p;

	uint32_t *v;

};



struct psb_mmu_pd {

	struct psb_mmu_driver *driver;

	int hw_context;

	struct psb_mmu_pt **tables;

	struct page *p;

	struct page *dummy_pt;

	struct page *dummy_page;

	uint32_t pd_mask;

	uint32_t invalid_pde;

	uint32_t invalid_pte;

};



extern struct psb_mmu_driver *psb_mmu_driver_init(struct drm_device *dev,

						  int trap_pagefaults,

						  int invalid_type,

						  atomic_t *msvdx_mmu_invaldc);

extern void psb_mmu_driver_takedown(struct psb_mmu_driver *driver);

extern struct psb_mmu_pd *psb_mmu_get_default_pd(struct psb_mmu_driver

						 *driver);

extern struct psb_mmu_pd *psb_mmu_alloc_pd(struct psb_mmu_driver *driver,

					   int trap_pagefaults,

					   int invalid_type);

extern void psb_mmu_free_pagedir(struct psb_mmu_pd *pd);

extern void psb_mmu_flush(struct psb_mmu_driver *driver);

extern void psb_mmu_remove_pfn_sequence(struct psb_mmu_pd *pd,

					unsigned long address,

					uint32_t num_pages);

extern int psb_mmu_insert_pfn_sequence(struct psb_mmu_pd *pd,

				       uint32_t start_pfn,

				       unsigned long address,

				       uint32_t num_pages, int type);

extern int psb_mmu_virtual_to_pfn(struct psb_mmu_pd *pd, uint32_t virtual,

				  unsigned long *pfn);

extern void psb_mmu_set_pd_context(struct psb_mmu_pd *pd, int hw_context);

extern int psb_mmu_insert_pages(struct psb_mmu_pd *pd, struct page **pages,

				unsigned long address, uint32_t num_pages,

				uint32_t desired_tile_stride,

				uint32_t hw_tile_stride, int type);

extern void psb_mmu_remove_pages(struct psb_mmu_pd *pd,

				 unsigned long address, uint32_t num_pages,

				 uint32_t desired_tile_stride,

				 uint32_t hw_tile_stride);



#endif

drivers/gpu/drm/gma500/psb_drv.h

+1 −44
Original line number Diff line number Diff line
@@ -33,6 +33,7 @@ 
#include "power.h"

#include "opregion.h"

#include "oaktrail.h"

#include "mmu.h"



/* Append new drm mode definition here, align with libdrm definition */

#define DRM_MODE_SCALE_NO_SCALE   	2
@@ -713,8 +714,6 @@ struct psb_ops { 






struct psb_mmu_driver;



extern int drm_crtc_probe_output_modes(struct drm_device *dev, int, int);

extern int drm_pick_crtcs(struct drm_device *dev);
@@ -723,48 +722,6 @@ static inline struct drm_psb_private *psb_priv(struct drm_device *dev) 
	return (struct drm_psb_private *) dev->dev_private;

}



/*

 * MMU stuff.

 */



extern struct psb_mmu_driver *psb_mmu_driver_init(struct drm_device *dev,

						  int trap_pagefaults,

						  int invalid_type,

						  atomic_t *msvdx_mmu_invaldc);

extern void psb_mmu_driver_takedown(struct psb_mmu_driver *driver);

extern struct psb_mmu_pd *psb_mmu_get_default_pd(struct psb_mmu_driver

						 *driver);

extern void psb_mmu_mirror_gtt(struct psb_mmu_pd *pd, uint32_t mmu_offset,

			       uint32_t gtt_start, uint32_t gtt_pages);

extern struct psb_mmu_pd *psb_mmu_alloc_pd(struct psb_mmu_driver *driver,

					   int trap_pagefaults,

					   int invalid_type);

extern void psb_mmu_free_pagedir(struct psb_mmu_pd *pd);

extern void psb_mmu_flush(struct psb_mmu_driver *driver);

extern void psb_mmu_remove_pfn_sequence(struct psb_mmu_pd *pd,

					unsigned long address,

					uint32_t num_pages);

extern int psb_mmu_insert_pfn_sequence(struct psb_mmu_pd *pd,

				       uint32_t start_pfn,

				       unsigned long address,

				       uint32_t num_pages, int type);

extern int psb_mmu_virtual_to_pfn(struct psb_mmu_pd *pd, uint32_t virtual,

				  unsigned long *pfn);



/*

 * Enable / disable MMU for different requestors.

 */





extern void psb_mmu_set_pd_context(struct psb_mmu_pd *pd, int hw_context);

extern int psb_mmu_insert_pages(struct psb_mmu_pd *pd, struct page **pages,

				unsigned long address, uint32_t num_pages,

				uint32_t desired_tile_stride,

				uint32_t hw_tile_stride, int type);

extern void psb_mmu_remove_pages(struct psb_mmu_pd *pd,

				 unsigned long address, uint32_t num_pages,

				 uint32_t desired_tile_stride,

				 uint32_t hw_tile_stride);

/*

 *psb_irq.c

 */