asgardius/android_kernel_motorola_sm6225
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
android_kernel_motorola_sm6225/drivers/video/aty/radeon_accel.c
David Miller efc4918143 radeon: misc corrections 
I have a new PCI-E radeon RV380 series card (PCI device ID 5b64) that
hangs in my sparc64 boxes when the init scripts set the font.  The problem
goes away if I disable acceleration.

I haven't figured out that bug yet, but along the way I found some
corrections to make based upon some auditing.

1) The RB2D_DC_FLUSH_ALL value used by the kernel fb driver
   and the XORG video driver differ.  I've made the kernel
   match what XORG is using.

2) In radeonfb_engine_reset() we have top-level code structure
   that roughly looks like:

	if (family is 300, 350, or V350)
		do this;
	else
		do that;
	...
	if (family is NOT 300, OR
	    family is NOT 350, OR
	    family is NOT V350)
		do another thing;

   this last conditional makes no sense, is always true,
   and obviously was likely meant to be "family is NOT
   300, 350, or V350".  So I've made the code match the
   intent.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-05 14:33:49 -07:00

316 lines
8.5 KiB
C
Raw Blame History

#include "radeonfb.h"
/* the accelerated functions here are patterned after the
* "ACCEL_MMIO" ifdef branches in XFree86
* --dte
*/
static void radeon_fixup_offset(struct radeonfb_info *rinfo)
{
u32 local_base;
/* *** Ugly workaround *** */
/*
* On some platforms, the video memory is mapped at 0 in radeon chip space
* (like PPCs) by the firmware. X will always move it up so that it's seen
* by the chip to be at the same address as the PCI BAR.
* That means that when switching back from X, there is a mismatch between
* the offsets programmed into the engine. This means that potentially,
* accel operations done before radeonfb has a chance to re-init the engine
* will have incorrect offsets, and potentially trash system memory !
*
* The correct fix is for fbcon to never call any accel op before the engine
* has properly been re-initialized (by a call to set_var), but this is a
* complex fix. This workaround in the meantime, called before every accel
* operation, makes sure the offsets are in sync.
*/
radeon_fifo_wait (1);
local_base = INREG(MC_FB_LOCATION) << 16;
if (local_base == rinfo->fb_local_base)
return;
rinfo->fb_local_base = local_base;
radeon_fifo_wait (3);
OUTREG(DEFAULT_PITCH_OFFSET, (rinfo->pitch << 0x16) |
(rinfo->fb_local_base >> 10));
OUTREG(DST_PITCH_OFFSET, (rinfo->pitch << 0x16) | (rinfo->fb_local_base >> 10));
OUTREG(SRC_PITCH_OFFSET, (rinfo->pitch << 0x16) | (rinfo->fb_local_base >> 10));
}
static void radeonfb_prim_fillrect(struct radeonfb_info *rinfo,
const struct fb_fillrect *region)
{
radeon_fifo_wait(4);
OUTREG(DP_GUI_MASTER_CNTL,
rinfo->dp_gui_master_cntl /* contains, like GMC_DST_32BPP */
| GMC_BRUSH_SOLID_COLOR
| ROP3_P);
if (radeon_get_dstbpp(rinfo->depth) != DST_8BPP)
OUTREG(DP_BRUSH_FRGD_CLR, rinfo->pseudo_palette[region->color]);
else
OUTREG(DP_BRUSH_FRGD_CLR, region->color);
OUTREG(DP_WRITE_MSK, 0xffffffff);
OUTREG(DP_CNTL, (DST_X_LEFT_TO_RIGHT | DST_Y_TOP_TO_BOTTOM));
radeon_fifo_wait(2);
OUTREG(DST_Y_X, (region->dy << 16) | region->dx);
OUTREG(DST_WIDTH_HEIGHT, (region->width << 16) | region->height);
}
void radeonfb_fillrect(struct fb_info *info, const struct fb_fillrect *region)
{
struct radeonfb_info *rinfo = info->par;
struct fb_fillrect modded;
int vxres, vyres;
if (info->state != FBINFO_STATE_RUNNING)
return;
if (info->flags & FBINFO_HWACCEL_DISABLED) {
cfb_fillrect(info, region);
return;
}
radeon_fixup_offset(rinfo);
vxres = info->var.xres_virtual;
vyres = info->var.yres_virtual;
memcpy(&modded, region, sizeof(struct fb_fillrect));
if(!modded.width || !modded.height ||
modded.dx >= vxres || modded.dy >= vyres)
return;
if(modded.dx + modded.width > vxres) modded.width = vxres - modded.dx;
if(modded.dy + modded.height > vyres) modded.height = vyres - modded.dy;
radeonfb_prim_fillrect(rinfo, &modded);
}
static void radeonfb_prim_copyarea(struct radeonfb_info *rinfo,
const struct fb_copyarea *area)
{
int xdir, ydir;
u32 sx, sy, dx, dy, w, h;
w = area->width; h = area->height;
dx = area->dx; dy = area->dy;
sx = area->sx; sy = area->sy;
xdir = sx - dx;
ydir = sy - dy;
if ( xdir < 0 ) { sx += w-1; dx += w-1; }
if ( ydir < 0 ) { sy += h-1; dy += h-1; }
radeon_fifo_wait(3);
OUTREG(DP_GUI_MASTER_CNTL,
rinfo->dp_gui_master_cntl /* i.e. GMC_DST_32BPP */
| GMC_BRUSH_NONE
| GMC_SRC_DSTCOLOR
| ROP3_S
| DP_SRC_SOURCE_MEMORY );
OUTREG(DP_WRITE_MSK, 0xffffffff);
OUTREG(DP_CNTL, (xdir>=0 ? DST_X_LEFT_TO_RIGHT : 0)
| (ydir>=0 ? DST_Y_TOP_TO_BOTTOM : 0));
radeon_fifo_wait(3);
OUTREG(SRC_Y_X, (sy << 16) | sx);
OUTREG(DST_Y_X, (dy << 16) | dx);
OUTREG(DST_HEIGHT_WIDTH, (h << 16) | w);
}
void radeonfb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
{
struct radeonfb_info *rinfo = info->par;
struct fb_copyarea modded;
u32 vxres, vyres;
modded.sx = area->sx;
modded.sy = area->sy;
modded.dx = area->dx;
modded.dy = area->dy;
modded.width = area->width;
modded.height = area->height;
if (info->state != FBINFO_STATE_RUNNING)
return;
if (info->flags & FBINFO_HWACCEL_DISABLED) {
cfb_copyarea(info, area);
return;
}
radeon_fixup_offset(rinfo);
vxres = info->var.xres_virtual;
vyres = info->var.yres_virtual;
if(!modded.width || !modded.height ||
modded.sx >= vxres || modded.sy >= vyres ||
modded.dx >= vxres || modded.dy >= vyres)
return;
if(modded.sx + modded.width > vxres) modded.width = vxres - modded.sx;
if(modded.dx + modded.width > vxres) modded.width = vxres - modded.dx;
if(modded.sy + modded.height > vyres) modded.height = vyres - modded.sy;
if(modded.dy + modded.height > vyres) modded.height = vyres - modded.dy;
radeonfb_prim_copyarea(rinfo, &modded);
}
void radeonfb_imageblit(struct fb_info *info, const struct fb_image *image)
{
struct radeonfb_info *rinfo = info->par;
if (info->state != FBINFO_STATE_RUNNING)
return;
radeon_engine_idle();
cfb_imageblit(info, image);
}
int radeonfb_sync(struct fb_info *info)
{
struct radeonfb_info *rinfo = info->par;
if (info->state != FBINFO_STATE_RUNNING)
return 0;
radeon_engine_idle();
return 0;
}
void radeonfb_engine_reset(struct radeonfb_info *rinfo)
{
u32 clock_cntl_index, mclk_cntl, rbbm_soft_reset;
u32 host_path_cntl;
radeon_engine_flush (rinfo);
clock_cntl_index = INREG(CLOCK_CNTL_INDEX);
mclk_cntl = INPLL(MCLK_CNTL);
OUTPLL(MCLK_CNTL, (mclk_cntl |
FORCEON_MCLKA |
FORCEON_MCLKB |
FORCEON_YCLKA |
FORCEON_YCLKB |
FORCEON_MC |
FORCEON_AIC));
host_path_cntl = INREG(HOST_PATH_CNTL);
rbbm_soft_reset = INREG(RBBM_SOFT_RESET);
if (rinfo->family == CHIP_FAMILY_R300 ||
rinfo->family == CHIP_FAMILY_R350 ||
rinfo->family == CHIP_FAMILY_RV350) {
u32 tmp;
OUTREG(RBBM_SOFT_RESET, (rbbm_soft_reset |
SOFT_RESET_CP |
SOFT_RESET_HI |
SOFT_RESET_E2));
INREG(RBBM_SOFT_RESET);
OUTREG(RBBM_SOFT_RESET, 0);
tmp = INREG(RB2D_DSTCACHE_MODE);
OUTREG(RB2D_DSTCACHE_MODE, tmp | (1 << 17)); /* FIXME */
} else {
OUTREG(RBBM_SOFT_RESET, rbbm_soft_reset |
SOFT_RESET_CP |
SOFT_RESET_HI |
SOFT_RESET_SE |
SOFT_RESET_RE |
SOFT_RESET_PP |
SOFT_RESET_E2 |
SOFT_RESET_RB);
INREG(RBBM_SOFT_RESET);
OUTREG(RBBM_SOFT_RESET, rbbm_soft_reset & (u32)
~(SOFT_RESET_CP |
SOFT_RESET_HI |
SOFT_RESET_SE |
SOFT_RESET_RE |
SOFT_RESET_PP |
SOFT_RESET_E2 |
SOFT_RESET_RB));
INREG(RBBM_SOFT_RESET);
}
OUTREG(HOST_PATH_CNTL, host_path_cntl | HDP_SOFT_RESET);
INREG(HOST_PATH_CNTL);
OUTREG(HOST_PATH_CNTL, host_path_cntl);
if (rinfo->family != CHIP_FAMILY_R300 &&
rinfo->family != CHIP_FAMILY_R350 &&
rinfo->family != CHIP_FAMILY_RV350)
OUTREG(RBBM_SOFT_RESET, rbbm_soft_reset);
OUTREG(CLOCK_CNTL_INDEX, clock_cntl_index);
OUTPLL(MCLK_CNTL, mclk_cntl);
}
void radeonfb_engine_init (struct radeonfb_info *rinfo)
{
unsigned long temp;
/* disable 3D engine */
OUTREG(RB3D_CNTL, 0);
radeonfb_engine_reset(rinfo);
radeon_fifo_wait (1);
if ((rinfo->family != CHIP_FAMILY_R300) &&
(rinfo->family != CHIP_FAMILY_R350) &&
(rinfo->family != CHIP_FAMILY_RV350))
OUTREG(RB2D_DSTCACHE_MODE, 0);
radeon_fifo_wait (3);
/* We re-read MC_FB_LOCATION from card as it can have been
* modified by XFree drivers (ouch !)
*/
rinfo->fb_local_base = INREG(MC_FB_LOCATION) << 16;
OUTREG(DEFAULT_PITCH_OFFSET, (rinfo->pitch << 0x16) |
(rinfo->fb_local_base >> 10));
OUTREG(DST_PITCH_OFFSET, (rinfo->pitch << 0x16) | (rinfo->fb_local_base >> 10));
OUTREG(SRC_PITCH_OFFSET, (rinfo->pitch << 0x16) | (rinfo->fb_local_base >> 10));
radeon_fifo_wait (1);
#if defined(__BIG_ENDIAN)
OUTREGP(DP_DATATYPE, HOST_BIG_ENDIAN_EN, ~HOST_BIG_ENDIAN_EN);
#else
OUTREGP(DP_DATATYPE, 0, ~HOST_BIG_ENDIAN_EN);
#endif
radeon_fifo_wait (2);
OUTREG(DEFAULT_SC_TOP_LEFT, 0);
OUTREG(DEFAULT_SC_BOTTOM_RIGHT, (DEFAULT_SC_RIGHT_MAX |
DEFAULT_SC_BOTTOM_MAX));
temp = radeon_get_dstbpp(rinfo->depth);
rinfo->dp_gui_master_cntl = ((temp << 8) | GMC_CLR_CMP_CNTL_DIS);
radeon_fifo_wait (1);
OUTREG(DP_GUI_MASTER_CNTL, (rinfo->dp_gui_master_cntl |
GMC_BRUSH_SOLID_COLOR |
GMC_SRC_DATATYPE_COLOR));
radeon_fifo_wait (7);
/* clear line drawing regs */
OUTREG(DST_LINE_START, 0);
OUTREG(DST_LINE_END, 0);
/* set brush color regs */
OUTREG(DP_BRUSH_FRGD_CLR, 0xffffffff);
OUTREG(DP_BRUSH_BKGD_CLR, 0x00000000);
/* set source color regs */
OUTREG(DP_SRC_FRGD_CLR, 0xffffffff);
OUTREG(DP_SRC_BKGD_CLR, 0x00000000);
/* default write mask */
OUTREG(DP_WRITE_MSK, 0xffffffff);
radeon_engine_idle ();
}
Reference in a new issue View git blame Copy permalink