drm: add savage driver (282a1674) · Commits · e / devices / android_kernel_teracube_2e

drivers/char/drm/Kconfig

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		@@ -96,3 +96,10 @@ config DRM_VIA
		Choose this option if you have a Via unichrome or compatible video
		chipset. If M is selected the module will be called via.

		config DRM_SAVAGE
		tristate "Savage video cards"
		depends on DRM
		help
		Choose this option if you have a Savage3D/4/SuperSavage/Pro/Twister
		chipset. If M is selected the module will be called savage.

drivers/char/drm/Makefile

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		@@ -17,6 +17,7 @@ i915-objs := i915_drv.o i915_dma.o i915_irq.o i915_mem.o
		radeon-objs := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o radeon_irq.o
		ffb-objs := ffb_drv.o ffb_context.o
		sis-objs := sis_drv.o sis_ds.o sis_mm.o
		savage-objs := savage_drv.o savage_bci.o savage_state.o
		via-objs := via_irq.o via_drv.o via_ds.o via_map.o via_mm.o via_dma.o via_verifier.o via_video.o

		ifeq ($(CONFIG_COMPAT),y)
		@@ -37,5 +38,7 @@ obj-$(CONFIG_DRM_I830) += i830.o
		obj-$(CONFIG_DRM_I915) += i915.o
		obj-$(CONFIG_DRM_FFB) += ffb.o
		obj-$(CONFIG_DRM_SIS) += sis.o
		obj-$(CONFIG_DRM_SAVAGE)+= savage.o
		obj-$(CONFIG_DRM_VIA) +=via.o

drivers/char/drm/savage_bci.c

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File added.

Preview size limit exceeded, changes collapsed.

drivers/char/drm/savage_drm.h

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		/* savage_drm.h -- Public header for the savage driver
		*
		* Copyright 2004 Felix Kuehling
		* 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 FELIX KUEHLING 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 __SAVAGE_DRM_H__
		#define __SAVAGE_DRM_H__

		#ifndef __SAVAGE_SAREA_DEFINES__
		#define __SAVAGE_SAREA_DEFINES__

		/* 2 heaps (1 for card, 1 for agp), each divided into upto 128
		* regions, subject to a minimum region size of (1<<16) == 64k.
		*
		* Clients may subdivide regions internally, but when sharing between
		* clients, the region size is the minimum granularity.
		*/

		#define SAVAGE_CARD_HEAP 0
		#define SAVAGE_AGP_HEAP 1
		#define SAVAGE_NR_TEX_HEAPS 2
		#define SAVAGE_NR_TEX_REGIONS 16
		#define SAVAGE_LOG_MIN_TEX_REGION_SIZE 16

		#endif /* __SAVAGE_SAREA_DEFINES__ */

		typedef struct _drm_savage_sarea {
		/* LRU lists for texture memory in agp space and on the card.
		*/
		drm_tex_region_t texList[SAVAGE_NR_TEX_HEAPS][SAVAGE_NR_TEX_REGIONS+1];
		unsigned int texAge[SAVAGE_NR_TEX_HEAPS];

		/* Mechanism to validate card state.
		*/
		int ctxOwner;
		} drm_savage_sarea_t, *drm_savage_sarea_ptr;

		/* Savage-specific ioctls
		*/
		#define DRM_SAVAGE_BCI_INIT 0x00
		#define DRM_SAVAGE_BCI_CMDBUF 0x01
		#define DRM_SAVAGE_BCI_EVENT_EMIT 0x02
		#define DRM_SAVAGE_BCI_EVENT_WAIT 0x03

		#define DRM_IOCTL_SAVAGE_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_SAVAGE_BCI_INIT, drm_savage_init_t)
		#define DRM_IOCTL_SAVAGE_CMDBUF DRM_IOW( DRM_COMMAND_BASE + DRM_SAVAGE_BCI_CMDBUF, drm_savage_cmdbuf_t)
		#define DRM_IOCTL_SAVAGE_EVENT_EMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_SAVAGE_BCI_EVENT_EMIT, drm_savage_event_emit_t)
		#define DRM_IOCTL_SAVAGE_EVENT_WAIT DRM_IOW( DRM_COMMAND_BASE + DRM_SAVAGE_BCI_EVENT_WAIT, drm_savage_event_wait_t)

		#define SAVAGE_DMA_PCI 1
		#define SAVAGE_DMA_AGP 3
		typedef struct drm_savage_init {
		enum {
		SAVAGE_INIT_BCI = 1,
		SAVAGE_CLEANUP_BCI = 2
		} func;
		unsigned int sarea_priv_offset;

		/* some parameters */
		unsigned int cob_size;
		unsigned int bci_threshold_lo, bci_threshold_hi;
		unsigned int dma_type;

		/* frame buffer layout */
		unsigned int fb_bpp;
		unsigned int front_offset, front_pitch;
		unsigned int back_offset, back_pitch;
		unsigned int depth_bpp;
		unsigned int depth_offset, depth_pitch;

		/* local textures */
		unsigned int texture_offset;
		unsigned int texture_size;

		/* physical locations of non-permanent maps */
		unsigned long status_offset;
		unsigned long buffers_offset;
		unsigned long agp_textures_offset;
		unsigned long cmd_dma_offset;
		} drm_savage_init_t;

		typedef union drm_savage_cmd_header drm_savage_cmd_header_t;
		typedef struct drm_savage_cmdbuf {
		/* command buffer in client's address space */
		drm_savage_cmd_header_t __user *cmd_addr;
		unsigned int size; /* size of the command buffer in 64bit units */

		unsigned int dma_idx; /* DMA buffer index to use */
		int discard; /* discard DMA buffer when done */
		/* vertex buffer in client's address space */
		unsigned int __user *vb_addr;
		unsigned int vb_size; /* size of client vertex buffer in bytes */
		unsigned int vb_stride; /* stride of vertices in 32bit words */
		/* boxes in client's address space */
		drm_clip_rect_t __user *box_addr;
		unsigned int nbox; /* number of clipping boxes */
		} drm_savage_cmdbuf_t;

		#define SAVAGE_WAIT_2D 0x1 /* wait for 2D idle before updating event tag */
		#define SAVAGE_WAIT_3D 0x2 /* wait for 3D idle before updating event tag */
		#define SAVAGE_WAIT_IRQ 0x4 /* emit or wait for IRQ, not implemented yet */
		typedef struct drm_savage_event {
		unsigned int count;
		unsigned int flags;
		} drm_savage_event_emit_t, drm_savage_event_wait_t;

		/* Commands for the cmdbuf ioctl
		*/
		#define SAVAGE_CMD_STATE 0 /* a range of state registers */
		#define SAVAGE_CMD_DMA_PRIM 1 /* vertices from DMA buffer */
		#define SAVAGE_CMD_VB_PRIM 2 /* vertices from client vertex buffer */
		#define SAVAGE_CMD_DMA_IDX 3 /* indexed vertices from DMA buffer */
		#define SAVAGE_CMD_VB_IDX 4 /* indexed vertices client vertex buffer */
		#define SAVAGE_CMD_CLEAR 5 /* clear buffers */
		#define SAVAGE_CMD_SWAP 6 /* swap buffers */

		/* Primitive types
		*/
		#define SAVAGE_PRIM_TRILIST 0 /* triangle list */
		#define SAVAGE_PRIM_TRISTRIP 1 /* triangle strip */
		#define SAVAGE_PRIM_TRIFAN 2 /* triangle fan */
		#define SAVAGE_PRIM_TRILIST_201 3 /* reorder verts for correct flat
		* shading on s3d */

		/* Skip flags (vertex format)
		*/
		#define SAVAGE_SKIP_Z 0x01
		#define SAVAGE_SKIP_W 0x02
		#define SAVAGE_SKIP_C0 0x04
		#define SAVAGE_SKIP_C1 0x08
		#define SAVAGE_SKIP_S0 0x10
		#define SAVAGE_SKIP_T0 0x20
		#define SAVAGE_SKIP_ST0 0x30
		#define SAVAGE_SKIP_S1 0x40
		#define SAVAGE_SKIP_T1 0x80
		#define SAVAGE_SKIP_ST1 0xc0
		#define SAVAGE_SKIP_ALL_S3D 0x3f
		#define SAVAGE_SKIP_ALL_S4 0xff

		/* Buffer names for clear command
		*/
		#define SAVAGE_FRONT 0x1
		#define SAVAGE_BACK 0x2
		#define SAVAGE_DEPTH 0x4

		/* 64-bit command header
		*/
		union drm_savage_cmd_header {
		struct {
		unsigned char cmd; /* command */
		unsigned char pad0;
		unsigned short pad1;
		unsigned short pad2;
		unsigned short pad3;
		} cmd; /* generic */
		struct {
		unsigned char cmd;
		unsigned char global; /* need idle engine? */
		unsigned short count; /* number of consecutive registers */
		unsigned short start; /* first register */
		unsigned short pad3;
		} state; /* SAVAGE_CMD_STATE */
		struct {
		unsigned char cmd;
		unsigned char prim; /* primitive type */
		unsigned short skip; /* vertex format (skip flags) */
		unsigned short count; /* number of vertices */
		unsigned short start; /* first vertex in DMA/vertex buffer */
		} prim; /* SAVAGE_CMD_DMA_PRIM, SAVAGE_CMD_VB_PRIM */
		struct {
		unsigned char cmd;
		unsigned char prim;
		unsigned short skip;
		unsigned short count; /* number of indices that follow */
		unsigned short pad3;
		} idx; /* SAVAGE_CMD_DMA_IDX, SAVAGE_CMD_VB_IDX */
		struct {
		unsigned char cmd;
		unsigned char pad0;
		unsigned short pad1;
		unsigned int flags;
		} clear0; /* SAVAGE_CMD_CLEAR */
		struct {
		unsigned int mask;
		unsigned int value;
		} clear1; /* SAVAGE_CMD_CLEAR data */
		};

		#endif

drivers/char/drm/savage_drv.c

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		/* savage_drv.c -- Savage driver for Linux
		*
		* Copyright 2004 Felix Kuehling
		* 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 FELIX KUEHLING 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.
		*/

		#include <linux/config.h>
		#include "drmP.h"
		#include "savage_drm.h"
		#include "savage_drv.h"

		#include "drm_pciids.h"

		static int postinit( struct drm_device *dev, unsigned long flags )
		{
		DRM_INFO( "Initialized %s %d.%d.%d %s on minor %d: %s\n",
		DRIVER_NAME,
		DRIVER_MAJOR,
		DRIVER_MINOR,
		DRIVER_PATCHLEVEL,
		DRIVER_DATE,
		dev->primary.minor,
		pci_pretty_name(dev->pdev)
		);
		return 0;
		}

		static int version( drm_version_t *version )
		{
		int len;

		version->version_major = DRIVER_MAJOR;
		version->version_minor = DRIVER_MINOR;
		version->version_patchlevel = DRIVER_PATCHLEVEL;
		DRM_COPY( version->name, DRIVER_NAME );
		DRM_COPY( version->date, DRIVER_DATE );
		DRM_COPY( version->desc, DRIVER_DESC );
		return 0;
		}

		static struct pci_device_id pciidlist[] = {
		savage_PCI_IDS
		};

		extern drm_ioctl_desc_t savage_ioctls[];
		extern int savage_max_ioctl;

		static struct drm_driver driver = {
		.driver_features =
		DRIVER_USE_AGP \| DRIVER_USE_MTRR \|
		DRIVER_HAVE_DMA \| DRIVER_PCI_DMA,
		.dev_priv_size = sizeof(drm_savage_buf_priv_t),
		.preinit = savage_preinit,
		.postinit = postinit,
		.postcleanup = savage_postcleanup,
		.reclaim_buffers = savage_reclaim_buffers,
		.get_map_ofs = drm_core_get_map_ofs,
		.get_reg_ofs = drm_core_get_reg_ofs,
		.version = version,
		.ioctls = savage_ioctls,
		.dma_ioctl = savage_bci_buffers,
		.fops = {
		.owner = THIS_MODULE,
		.open = drm_open,
		.release = drm_release,
		.ioctl = drm_ioctl,
		.mmap = drm_mmap,
		.poll = drm_poll,
		.fasync = drm_fasync,
		},
		.pci_driver = {
		.name = DRIVER_NAME,
		.id_table = pciidlist,
		}
		};

		static int __init savage_init(void)
		{
		driver.num_ioctls = savage_max_ioctl;
		return drm_init(&driver);
		}

		static void __exit savage_exit(void)
		{
		drm_exit(&driver);
		}

		module_init(savage_init);
		module_exit(savage_exit);

		MODULE_AUTHOR( DRIVER_AUTHOR );
		MODULE_DESCRIPTION( DRIVER_DESC );
		MODULE_LICENSE("GPL and additional rights");