From 6c12f30554f29069afd485ecd05a1d54c8aece9f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=E4l=E4?= Date: Mon, 7 Nov 2005 01:00:58 -0800 Subject: [PATCH] matroxfb: Use CACHEFLUSH on all chips MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use the CACHEFLUSH register on all chip types. The register is listed in all other specs except 2064W. However I have verified that the register does work on a 2064W despite being marked reserved in the specs. There were no noticeable side effects after writing to the register. Signed-off-by: Ville Syrjälä Signed-off-by: Petr Vandrovec Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/matrox/matroxfb_DAC1064.c | 2 -- drivers/video/matrox/matroxfb_base.c | 9 ++------- drivers/video/matrox/matroxfb_base.h | 5 ----- 3 files changed, 2 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/video/matrox/matroxfb_DAC1064.c b/drivers/video/matrox/matroxfb_DAC1064.c index 149680f8bcf..94ba81543cd 100644 --- a/drivers/video/matrox/matroxfb_DAC1064.c +++ b/drivers/video/matrox/matroxfb_DAC1064.c @@ -657,7 +657,6 @@ static int MGA1064_preinit(WPMINFO2) { /* ACCESS_FBINFO(capable.cfb4) = 0; ... preinitialized by 0 */ ACCESS_FBINFO(capable.text) = 1; ACCESS_FBINFO(capable.vxres) = vxres_mystique; - ACCESS_FBINFO(features.accel.has_cacheflush) = 1; ACCESS_FBINFO(outputs[0]).output = &m1064; ACCESS_FBINFO(outputs[0]).src = ACCESS_FBINFO(outputs[0]).default_src; @@ -842,7 +841,6 @@ static int MGAG100_preinit(WPMINFO2) { /* ACCESS_FBINFO(capable.cfb4) = 0; ... preinitialized by 0 */ ACCESS_FBINFO(capable.text) = 1; ACCESS_FBINFO(capable.vxres) = vxres_g100; - ACCESS_FBINFO(features.accel.has_cacheflush) = 1; ACCESS_FBINFO(capable.plnwt) = ACCESS_FBINFO(devflags.accelerator) == FB_ACCEL_MATROX_MGAG100 ? ACCESS_FBINFO(devflags.sgram) : 1; diff --git a/drivers/video/matrox/matroxfb_base.c b/drivers/video/matrox/matroxfb_base.c index 1734438f7d7..a780bb30ffc 100644 --- a/drivers/video/matrox/matroxfb_base.c +++ b/drivers/video/matrox/matroxfb_base.c @@ -1283,7 +1283,7 @@ static int matroxfb_getmemory(WPMINFO unsigned int maxSize, unsigned int *realSi vaddr_t vm; unsigned int offs; unsigned int offs2; - unsigned char store, orig; + unsigned char orig; unsigned char bytes[32]; unsigned char* tmp; @@ -1299,16 +1299,12 @@ static int matroxfb_getmemory(WPMINFO unsigned int maxSize, unsigned int *realSi orig = mga_inb(M_EXTVGA_DATA); mga_outb(M_EXTVGA_DATA, orig | 0x80); - store = mga_readb(vm, 0x1234); tmp = bytes; for (offs = 0x100000; offs < maxSize; offs += 0x200000) *tmp++ = mga_readb(vm, offs); for (offs = 0x100000; offs < maxSize; offs += 0x200000) mga_writeb(vm, offs, 0x02); - if (ACCESS_FBINFO(features.accel.has_cacheflush)) - mga_outb(M_CACHEFLUSH, 0x00); - else - mga_writeb(vm, 0x1234, 0x99); + mga_outb(M_CACHEFLUSH, 0x00); for (offs = 0x100000; offs < maxSize; offs += 0x200000) { if (mga_readb(vm, offs) != 0x02) break; @@ -1319,7 +1315,6 @@ static int matroxfb_getmemory(WPMINFO unsigned int maxSize, unsigned int *realSi tmp = bytes; for (offs2 = 0x100000; offs2 < maxSize; offs2 += 0x200000) mga_writeb(vm, offs2, *tmp++); - mga_writeb(vm, 0x1234, store); mga_outb(M_EXTVGA_INDEX, 0x03); mga_outb(M_EXTVGA_DATA, orig); diff --git a/drivers/video/matrox/matroxfb_base.h b/drivers/video/matrox/matroxfb_base.h index 85a0b255845..a8c47ad2cdb 100644 --- a/drivers/video/matrox/matroxfb_base.h +++ b/drivers/video/matrox/matroxfb_base.h @@ -272,10 +272,6 @@ struct matrox_DAC1064_features { u_int8_t xmiscctrl; }; -struct matrox_accel_features { - int has_cacheflush; -}; - /* current hardware status */ struct mavenregs { u_int8_t regs[256]; @@ -440,7 +436,6 @@ struct matrox_fb_info { struct { struct matrox_pll_features pll; struct matrox_DAC1064_features DAC1064; - struct matrox_accel_features accel; } features; struct { spinlock_t DAC; -- cgit v1.2.3