mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 20:53:53 +08:00
de7e8bd01a
We want to remove uses of do_gettimeofday() from the kernel since the resulting timeval structure overflows in 2038. This is not a problem for this particular use, but do_gettimeofday() is also not an appropriate method for measuring time intervals, since it requires a conversion into microseconds and is complicated to work with. ktime_get() is a better replacement, as it works with the monontonic kernel timebase and requires a minimum of computation. I'm slightly changing the output from microseconds to nanoseconds here, to avoid introducing a new division operation. This should be fine since the value is only used for debugging. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20171104212131.2939989-1-arnd@arndb.de
167 lines
5.9 KiB
C
167 lines
5.9 KiB
C
/*
|
|
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
|
|
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sub license,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the
|
|
* next paragraph) shall be included in all copies or substantial portions
|
|
* of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
|
|
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
#ifndef _VIA_DRV_H_
|
|
#define _VIA_DRV_H_
|
|
|
|
#include <drm/drm_mm.h>
|
|
#include <drm/drm_legacy.h>
|
|
|
|
#define DRIVER_AUTHOR "Various"
|
|
|
|
#define DRIVER_NAME "via"
|
|
#define DRIVER_DESC "VIA Unichrome / Pro"
|
|
#define DRIVER_DATE "20070202"
|
|
|
|
#define DRIVER_MAJOR 2
|
|
#define DRIVER_MINOR 11
|
|
#define DRIVER_PATCHLEVEL 1
|
|
|
|
#include "via_verifier.h"
|
|
|
|
#include "via_dmablit.h"
|
|
|
|
#define VIA_PCI_BUF_SIZE 60000
|
|
#define VIA_FIRE_BUF_SIZE 1024
|
|
#define VIA_NUM_IRQS 4
|
|
|
|
typedef struct drm_via_ring_buffer {
|
|
drm_local_map_t map;
|
|
char *virtual_start;
|
|
} drm_via_ring_buffer_t;
|
|
|
|
typedef uint32_t maskarray_t[5];
|
|
|
|
typedef struct drm_via_irq {
|
|
atomic_t irq_received;
|
|
uint32_t pending_mask;
|
|
uint32_t enable_mask;
|
|
wait_queue_head_t irq_queue;
|
|
} drm_via_irq_t;
|
|
|
|
typedef struct drm_via_private {
|
|
drm_via_sarea_t *sarea_priv;
|
|
drm_local_map_t *sarea;
|
|
drm_local_map_t *fb;
|
|
drm_local_map_t *mmio;
|
|
unsigned long agpAddr;
|
|
wait_queue_head_t decoder_queue[VIA_NR_XVMC_LOCKS];
|
|
char *dma_ptr;
|
|
unsigned int dma_low;
|
|
unsigned int dma_high;
|
|
unsigned int dma_offset;
|
|
uint32_t dma_wrap;
|
|
volatile uint32_t *last_pause_ptr;
|
|
volatile uint32_t *hw_addr_ptr;
|
|
drm_via_ring_buffer_t ring;
|
|
ktime_t last_vblank;
|
|
int last_vblank_valid;
|
|
ktime_t nsec_per_vblank;
|
|
atomic_t vbl_received;
|
|
drm_via_state_t hc_state;
|
|
char pci_buf[VIA_PCI_BUF_SIZE];
|
|
const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
|
|
uint32_t num_fire_offsets;
|
|
int chipset;
|
|
drm_via_irq_t via_irqs[VIA_NUM_IRQS];
|
|
unsigned num_irqs;
|
|
maskarray_t *irq_masks;
|
|
uint32_t irq_enable_mask;
|
|
uint32_t irq_pending_mask;
|
|
int *irq_map;
|
|
unsigned int idle_fault;
|
|
int vram_initialized;
|
|
struct drm_mm vram_mm;
|
|
int agp_initialized;
|
|
struct drm_mm agp_mm;
|
|
/** Mapping of userspace keys to mm objects */
|
|
struct idr object_idr;
|
|
unsigned long vram_offset;
|
|
unsigned long agp_offset;
|
|
drm_via_blitq_t blit_queues[VIA_NUM_BLIT_ENGINES];
|
|
uint32_t dma_diff;
|
|
} drm_via_private_t;
|
|
|
|
struct via_file_private {
|
|
struct list_head obj_list;
|
|
};
|
|
|
|
enum via_family {
|
|
VIA_OTHER = 0, /* Baseline */
|
|
VIA_PRO_GROUP_A, /* Another video engine and DMA commands */
|
|
VIA_DX9_0 /* Same video as pro_group_a, but 3D is unsupported */
|
|
};
|
|
|
|
/* VIA MMIO register access */
|
|
#define VIA_BASE ((dev_priv->mmio))
|
|
|
|
#define VIA_READ(reg) DRM_READ32(VIA_BASE, reg)
|
|
#define VIA_WRITE(reg, val) DRM_WRITE32(VIA_BASE, reg, val)
|
|
#define VIA_READ8(reg) DRM_READ8(VIA_BASE, reg)
|
|
#define VIA_WRITE8(reg, val) DRM_WRITE8(VIA_BASE, reg, val)
|
|
|
|
extern const struct drm_ioctl_desc via_ioctls[];
|
|
extern int via_max_ioctl;
|
|
|
|
extern int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
|
|
extern int via_mem_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv);
|
|
extern int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv);
|
|
extern int via_agp_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
|
|
extern int via_map_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
|
|
extern int via_decoder_futex(struct drm_device *dev, void *data, struct drm_file *file_priv);
|
|
extern int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv);
|
|
extern int via_dma_blit_sync(struct drm_device *dev, void *data, struct drm_file *file_priv);
|
|
extern int via_dma_blit(struct drm_device *dev, void *data, struct drm_file *file_priv);
|
|
|
|
extern int via_driver_load(struct drm_device *dev, unsigned long chipset);
|
|
extern void via_driver_unload(struct drm_device *dev);
|
|
|
|
extern int via_init_context(struct drm_device *dev, int context);
|
|
extern int via_final_context(struct drm_device *dev, int context);
|
|
|
|
extern int via_do_cleanup_map(struct drm_device *dev);
|
|
extern u32 via_get_vblank_counter(struct drm_device *dev, unsigned int pipe);
|
|
extern int via_enable_vblank(struct drm_device *dev, unsigned int pipe);
|
|
extern void via_disable_vblank(struct drm_device *dev, unsigned int pipe);
|
|
|
|
extern irqreturn_t via_driver_irq_handler(int irq, void *arg);
|
|
extern void via_driver_irq_preinstall(struct drm_device *dev);
|
|
extern int via_driver_irq_postinstall(struct drm_device *dev);
|
|
extern void via_driver_irq_uninstall(struct drm_device *dev);
|
|
|
|
extern int via_dma_cleanup(struct drm_device *dev);
|
|
extern void via_init_command_verifier(void);
|
|
extern int via_driver_dma_quiescent(struct drm_device *dev);
|
|
extern void via_init_futex(drm_via_private_t *dev_priv);
|
|
extern void via_cleanup_futex(drm_via_private_t *dev_priv);
|
|
extern void via_release_futex(drm_via_private_t *dev_priv, int context);
|
|
|
|
extern void via_reclaim_buffers_locked(struct drm_device *dev,
|
|
struct drm_file *file_priv);
|
|
extern void via_lastclose(struct drm_device *dev);
|
|
|
|
extern void via_dmablit_handler(struct drm_device *dev, int engine, int from_irq);
|
|
extern void via_init_dmablit(struct drm_device *dev);
|
|
|
|
#endif
|