AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-27 00:05:11 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
74a2b96e61
linux_dsm_epyc7002/drivers/video/fbdev/aty/atyfb.h
Luis R. Rodriguez 7d89a3cb15 drivers/video/fbdev/atyfb: Use arch_phys_wc_add() and ioremap_wc() 
This driver uses strong UC for the MMIO region, and ioremap_wc()
for the framebuffer to whitelist for the WC MTRR that can be
changed to WC. On PAT systems we don't need the MTRR call so
just use arch_phys_wc_add() there, this lets us remove all those
ifdefs. Let's also be consistent and use ioremap_wc() for ATARI
as well.

There are a few motivations for this:

  a) Take advantage of PAT when available.

  b) Help bury MTRR code away, MTRR is architecture specific and
     on x86 it is being replaced by PAT.

  c) Help with the goal of eventually using _PAGE_CACHE_UC over
     _PAGE_CACHE_UC_MINUS on x86 on ioremap_nocache() (see commit
     de33c442e titled "x86 PAT: fix performance drop for glx,
     use UC minus for ioremap(), ioremap_nocache() and
     pci_mmap_page_range()").

The conversion done is expressed by the following Coccinelle
SmPL patch, it additionally required manual intervention to
address all the ifdeffery and removal of redundant things which
arch_phys_wc_add() already addresses such as verbose message
about when MTRR fails and doing nothing when we didn't get an
MTRR:

	@ mtrr_found @
	expression index, base, size;
	@@

	-index = mtrr_add(base, size, MTRR_TYPE_WRCOMB, 1);
	+index = arch_phys_wc_add(base, size);

	@ mtrr_rm depends on mtrr_found @
	expression mtrr_found.index, mtrr_found.base, mtrr_found.size;
	@@

	-mtrr_del(index, base, size);
	+arch_phys_wc_del(index);

	@ mtrr_rm_zero_arg depends on mtrr_found @
	expression mtrr_found.index;
	@@

	-mtrr_del(index, 0, 0);
	+arch_phys_wc_del(index);

	@ mtrr_rm_fb_info depends on mtrr_found @
	struct fb_info *info;
	expression mtrr_found.index;
	@@

	-mtrr_del(index, info->fix.smem_start, info->fix.smem_len);
	+arch_phys_wc_del(index);

	@ ioremap_replace_nocache depends on mtrr_found @
	struct fb_info *info;
	expression base, size;
	@@

	-info->screen_base = ioremap_nocache(base, size);
	+info->screen_base = ioremap_wc(base, size);

	@ ioremap_replace_default depends on mtrr_found @
	struct fb_info *info;
	expression base, size;
	@@

	-info->screen_base = ioremap(base, size);
	+info->screen_base = ioremap_wc(base, size);

Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Antonino Daplas <adaplas@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mathias Krause <minipli@googlemail.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Suresh Siddha <sbsiddha@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: Ville Syrjälä <syrjala@sci.fi>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: arnd@arndb.de
Cc: benh@kernel.crashing.org
Cc: dan.j.williams@intel.com
Cc: geert@linux-m68k.org
Cc: hch@lst.de
Cc: hmh@hmh.eng.br
Cc: linux-fbdev@vger.kernel.org
Cc: linux-mm@kvack.org
Cc: linux-pci@vger.kernel.org
Cc: mpe@ellerman.id.au
Cc: mst@redhat.com
Cc: ralf@linux-mips.org
Cc: ross.zwisler@linux.intel.com
Cc: stefan.bader@canonical.com
Cc: tj@kernel.org
Cc: ville.syrjala@linux.intel.com
Link: http://lkml.kernel.org/r/1436491499-3289-5-git-send-email-mcgrof@do-not-panic.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-07-21 10:47:05 +02:00

367 lines
8.7 KiB
C
Raw Blame History

/*
* ATI Frame Buffer Device Driver Core Definitions
*/
#include <linux/spinlock.h>
#include <linux/wait.h>
/*
* Elements of the hardware specific atyfb_par structure
*/
struct crtc {
u32 vxres;
u32 vyres;
u32 xoffset;
u32 yoffset;
u32 bpp;
u32 h_tot_disp;
u32 h_sync_strt_wid;
u32 v_tot_disp;
u32 v_sync_strt_wid;
u32 vline_crnt_vline;
u32 off_pitch;
u32 gen_cntl;
u32 dp_pix_width; /* acceleration */
u32 dp_chain_mask; /* acceleration */
#ifdef CONFIG_FB_ATY_GENERIC_LCD
u32 horz_stretching;
u32 vert_stretching;
u32 ext_vert_stretch;
u32 shadow_h_tot_disp;
u32 shadow_h_sync_strt_wid;
u32 shadow_v_tot_disp;
u32 shadow_v_sync_strt_wid;
u32 lcd_gen_cntl;
u32 lcd_config_panel;
u32 lcd_index;
#endif
};
struct aty_interrupt {
wait_queue_head_t wait;
unsigned int count;
int pan_display;
};
struct pll_info {
int pll_max;
int pll_min;
int sclk, mclk, mclk_pm, xclk;
int ref_div;
int ref_clk;
int ecp_max;
};
typedef struct {
u16 unknown1;
u16 PCLK_min_freq;
u16 PCLK_max_freq;
u16 unknown2;
u16 ref_freq;
u16 ref_divider;
u16 unknown3;
u16 MCLK_pwd;
u16 MCLK_max_freq;
u16 XCLK_max_freq;
u16 SCLK_freq;
} __attribute__ ((packed)) PLL_BLOCK_MACH64;
struct pll_514 {
u8 m;
u8 n;
};
struct pll_18818 {
u32 program_bits;
u32 locationAddr;
u32 period_in_ps;
u32 post_divider;
};
struct pll_ct {
u8 pll_ref_div;
u8 pll_gen_cntl;
u8 mclk_fb_div;
u8 mclk_fb_mult; /* 2 ro 4 */
u8 sclk_fb_div;
u8 pll_vclk_cntl;
u8 vclk_post_div;
u8 vclk_fb_div;
u8 pll_ext_cntl;
u8 ext_vpll_cntl;
u8 spll_cntl2;
u32 dsp_config; /* Mach64 GTB DSP */
u32 dsp_on_off; /* Mach64 GTB DSP */
u32 dsp_loop_latency;
u32 fifo_size;
u32 xclkpagefaultdelay;
u32 xclkmaxrasdelay;
u8 xclk_ref_div;
u8 xclk_post_div;
u8 mclk_post_div_real;
u8 xclk_post_div_real;
u8 vclk_post_div_real;
u8 features;
#ifdef CONFIG_FB_ATY_GENERIC_LCD
u32 xres; /* use for LCD stretching/scaling */
#endif
};
/*
for pll_ct.features
*/
#define DONT_USE_SPLL 0x1
#define DONT_USE_XDLL 0x2
#define USE_CPUCLK 0x4
#define POWERDOWN_PLL 0x8
union aty_pll {
struct pll_ct ct;
struct pll_514 ibm514;
struct pll_18818 ics2595;
};
/*
* The hardware parameters for each card
*/
struct atyfb_par {
u32 pseudo_palette[16];
struct { u8 red, green, blue; } palette[256];
const struct aty_dac_ops *dac_ops;
const struct aty_pll_ops *pll_ops;
void __iomem *ati_regbase;
unsigned long clk_wr_offset; /* meaning overloaded, clock id by CT */
struct crtc crtc;
union aty_pll pll;
struct pll_info pll_limits;
u32 features;
u32 ref_clk_per;
u32 pll_per;
u32 mclk_per;
u32 xclk_per;
u8 bus_type;
u8 ram_type;
u8 mem_refresh_rate;
u16 pci_id;
u32 accel_flags;
int blitter_may_be_busy;
int asleep;
int lock_blank;
unsigned long res_start;
unsigned long res_size;
struct pci_dev *pdev;
#ifdef __sparc__
struct pci_mmap_map *mmap_map;
u8 mmaped;
#endif
int open;
#ifdef CONFIG_FB_ATY_GENERIC_LCD
unsigned long bios_base_phys;
unsigned long bios_base;
unsigned long lcd_table;
u16 lcd_width;
u16 lcd_height;
u32 lcd_pixclock;
u16 lcd_refreshrate;
u16 lcd_htotal;
u16 lcd_hdisp;
u16 lcd_hsync_dly;
u16 lcd_hsync_len;
u16 lcd_vtotal;
u16 lcd_vdisp;
u16 lcd_vsync_len;
u16 lcd_right_margin;
u16 lcd_lower_margin;
u16 lcd_hblank_len;
u16 lcd_vblank_len;
#endif
unsigned long aux_start; /* auxiliary aperture */
unsigned long aux_size;
struct aty_interrupt vblank;
unsigned long irq_flags;
unsigned int irq;
spinlock_t int_lock;
int wc_cookie;
u32 mem_cntl;
struct crtc saved_crtc;
union aty_pll saved_pll;
};
/*
* ATI Mach64 features
*/
#define M64_HAS(feature) ((par)->features & (M64F_##feature))
#define M64F_RESET_3D 0x00000001
#define M64F_MAGIC_FIFO 0x00000002
#define M64F_GTB_DSP 0x00000004
#define M64F_FIFO_32 0x00000008
#define M64F_SDRAM_MAGIC_PLL 0x00000010
#define M64F_MAGIC_POSTDIV 0x00000020
#define M64F_INTEGRATED 0x00000040
#define M64F_CT_BUS 0x00000080
#define M64F_VT_BUS 0x00000100
#define M64F_MOBIL_BUS 0x00000200
#define M64F_GX 0x00000400
#define M64F_CT 0x00000800
#define M64F_VT 0x00001000
#define M64F_GT 0x00002000
#define M64F_MAGIC_VRAM_SIZE 0x00004000
#define M64F_G3_PB_1_1 0x00008000
#define M64F_G3_PB_1024x768 0x00010000
#define M64F_EXTRA_BRIGHT 0x00020000
#define M64F_LT_LCD_REGS 0x00040000
#define M64F_XL_DLL 0x00080000
#define M64F_MFB_FORCE_4 0x00100000
#define M64F_HW_TRIPLE 0x00200000
#define M64F_XL_MEM 0x00400000
/*
* Register access
*/
static inline u32 aty_ld_le32(int regindex, const struct atyfb_par *par)
{
/* Hack for bloc 1, should be cleanly optimized by compiler */
if (regindex >= 0x400)
regindex -= 0x800;
#ifdef CONFIG_ATARI
return in_le32(par->ati_regbase + regindex);
#else
return readl(par->ati_regbase + regindex);
#endif
}
static inline void aty_st_le32(int regindex, u32 val, const struct atyfb_par *par)
{
/* Hack for bloc 1, should be cleanly optimized by compiler */
if (regindex >= 0x400)
regindex -= 0x800;
#ifdef CONFIG_ATARI
out_le32(par->ati_regbase + regindex, val);
#else
writel(val, par->ati_regbase + regindex);
#endif
}
static inline void aty_st_le16(int regindex, u16 val,
const struct atyfb_par *par)
{
/* Hack for bloc 1, should be cleanly optimized by compiler */
if (regindex >= 0x400)
regindex -= 0x800;
#ifdef CONFIG_ATARI
out_le16(par->ati_regbase + regindex, val);
#else
writel(val, par->ati_regbase + regindex);
#endif
}
static inline u8 aty_ld_8(int regindex, const struct atyfb_par *par)
{
/* Hack for bloc 1, should be cleanly optimized by compiler */
if (regindex >= 0x400)
regindex -= 0x800;
#ifdef CONFIG_ATARI
return in_8(par->ati_regbase + regindex);
#else
return readb(par->ati_regbase + regindex);
#endif
}
static inline void aty_st_8(int regindex, u8 val, const struct atyfb_par *par)
{
/* Hack for bloc 1, should be cleanly optimized by compiler */
if (regindex >= 0x400)
regindex -= 0x800;
#ifdef CONFIG_ATARI
out_8(par->ati_regbase + regindex, val);
#else
writeb(val, par->ati_regbase + regindex);
#endif
}
#if defined(CONFIG_PM) || defined(CONFIG_PMAC_BACKLIGHT) || \
defined (CONFIG_FB_ATY_GENERIC_LCD) || defined (CONFIG_FB_ATY_BACKLIGHT)
extern void aty_st_lcd(int index, u32 val, const struct atyfb_par *par);
extern u32 aty_ld_lcd(int index, const struct atyfb_par *par);
#endif
/*
* DAC operations
*/
struct aty_dac_ops {
int (*set_dac) (const struct fb_info * info,
const union aty_pll * pll, u32 bpp, u32 accel);
};
extern const struct aty_dac_ops aty_dac_ibm514; /* IBM RGB514 */
extern const struct aty_dac_ops aty_dac_ati68860b; /* ATI 68860-B */
extern const struct aty_dac_ops aty_dac_att21c498; /* AT&T 21C498 */
extern const struct aty_dac_ops aty_dac_unsupported; /* unsupported */
extern const struct aty_dac_ops aty_dac_ct; /* Integrated */
/*
* Clock operations
*/
struct aty_pll_ops {
int (*var_to_pll) (const struct fb_info * info, u32 vclk_per, u32 bpp, union aty_pll * pll);
u32 (*pll_to_var) (const struct fb_info * info, const union aty_pll * pll);
void (*set_pll) (const struct fb_info * info, const union aty_pll * pll);
void (*get_pll) (const struct fb_info *info, union aty_pll * pll);
int (*init_pll) (const struct fb_info * info, union aty_pll * pll);
void (*resume_pll)(const struct fb_info *info, union aty_pll *pll);
};
extern const struct aty_pll_ops aty_pll_ati18818_1; /* ATI 18818 */
extern const struct aty_pll_ops aty_pll_stg1703; /* STG 1703 */
extern const struct aty_pll_ops aty_pll_ch8398; /* Chrontel 8398 */
extern const struct aty_pll_ops aty_pll_att20c408; /* AT&T 20C408 */
extern const struct aty_pll_ops aty_pll_ibm514; /* IBM RGB514 */
extern const struct aty_pll_ops aty_pll_unsupported; /* unsupported */
extern const struct aty_pll_ops aty_pll_ct; /* Integrated */
extern void aty_set_pll_ct(const struct fb_info *info, const union aty_pll *pll);
extern u8 aty_ld_pll_ct(int offset, const struct atyfb_par *par);
/*
* Hardware cursor support
*/
extern int aty_init_cursor(struct fb_info *info);
/*
* Hardware acceleration
*/
static inline void wait_for_fifo(u16 entries, const struct atyfb_par *par)
{
while ((aty_ld_le32(FIFO_STAT, par) & 0xffff) >
((u32) (0x8000 >> entries)));
}
static inline void wait_for_idle(struct atyfb_par *par)
{
wait_for_fifo(16, par);
while ((aty_ld_le32(GUI_STAT, par) & 1) != 0);
par->blitter_may_be_busy = 0;
}
extern void aty_reset_engine(const struct atyfb_par *par);
extern void aty_init_engine(struct atyfb_par *par, struct fb_info *info);
extern u8 aty_ld_pll_ct(int offset, const struct atyfb_par *par);
void atyfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
void atyfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
void atyfb_imageblit(struct fb_info *info, const struct fb_image *image);
Reference in New Issue View Git Blame Copy Permalink