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linux-sg2042/drivers/mmc/host
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Seungwon Jeon f9c2a0dc42 mmc: dw_mmc: Fix PIO mode with support of highmem 
Current PIO mode makes a kernel crash with CONFIG_HIGHMEM.
Highmem pages have a NULL from sg_virt(sg).
This patch fixes the following problem.

Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0004000
[00000000] *pgd=00000000
Internal error: Oops: 817 [#1] PREEMPT SMP
Modules linked in:
CPU: 0    Not tainted  (3.0.15-01423-gdbf465f #589)
PC is at dw_mci_pull_data32+0x4c/0x9c
LR is at dw_mci_read_data_pio+0x54/0x1f0
pc : [<c0358824>]    lr : [<c035988c>]    psr: 20000193
sp : c0619d48  ip : c0619d70  fp : c0619d6c
r10: 00000000  r9 : 00000002  r8 : 00001000
r7 : 00000200  r6 : 00000000  r5 : e1dd3100  r4 : 00000000
r3 : 65622023  r2 : 0000007f  r1 : eeb96000  r0 : e1dd3100
Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment
xkernel
Control: 10c5387d  Table: 61e2004a  DAC: 00000015
Process swapper (pid: 0, stack limit = 0xc06182f0)
Stack: (0xc0619d48 to 0xc061a000)
9d40:                   e1dd3100 e1a4f000 00000000 e1dd3100 e1a4f000 00000200
9d60: c0619da4 c0619d70 c035988c c03587e4 c0619d9c e18158f4 e1dd3100 e1dd3100
9d80: 00000020 00000000 00000000 00000020 c06e8a84 00000000 c0619e04 c0619da8
9da0: c0359b24 c0359844 e18158f4 e1dd3164 e1dd3168 e1dd3150 3d02fc79 e1dd3154
9dc0: e1dd3178 00000000 00000020 00000000 e1dd3150 00000000 c10dd7e8 e1a84900
9de0: c061e7cc 00000000 00000000 0000008d c06e8a84 c061e780 c0619e4c c0619e08
9e00: c00c4738 c0359a34 3d02fc79 00000000 c0619e4c c05a1698 c05a1670 c05a165c
9e20: c04de8b0 c061e780 c061e7cc e1a84900 ffffed68 0000008d c0618000 00000000
9e40: c0619e6c c0619e50 c00c48b4 c00c46c8 c061e780 c00423ac c061e7cc ffffed68
9e60: c0619e8c c0619e70 c00c7358 c00c487c 0000008d ffffee38 c0618000 ffffed68
9e80: c0619ea4 c0619e90 c00c4258 c00c72b0 c00423ac ffffee38 c0619ecc c0619ea8
9ea0: c004241c c00c4234 ffffffff f8810000 0000006d 00000002 00000001 7fffffff
9ec0: c0619f44 c0619ed0 c0048bc0 c00423c4 220ae7a9 00000000 386f0d30 0005d3a4
9ee0: c00423ac c10dd0b8 c06f2cd8 c0618000 c0594778 c003a674 7fffffff c0619f44
9f00: 386f0d30 c0619f18 c00a6f94 c005be3c 80000013 ffffffff 386f0d30 0005d3a4
9f20: 386f0d30 0005d2d1 c10dd0a8 c10dd0b8 c06f2cd8 c0618000 c0619f74 c0619f48
9f40: c0345858 c005be00 c00a2440 c0618000 c0618000 c00410d8 c06c1944 c00410fc
9f60: c0594778 c003a674 c0619f9c c0619f78 c004a7e8 c03457b4 c0618000 c06c18f8
9f80: 00000000 c0039c70 c06c18d4 c003a674 c0619fb4 c0619fa0 c04ceafc c004a714
9fa0: c06287b4 c06c18f8 c0619ff4 c0619fb8 c0008b68 c04cea68 c0008578 00000000
9fc0: 00000000 c003a674 00000000 10c5387d c0628658 c003aa78 c062f1c4 4000406a
9fe0: 413fc090 00000000 00000000 c0619ff8 40008044 c0008858 00000000 00000000
Backtrace:
[<c03587d8>] (dw_mci_pull_data32+0x0/0x9c) from [<c035988c>] (dw_mci_read_data_pio+0x54/0x1f0)
 r6:00000200 r5:e1a4f000 r4:e1dd3100
 [<c0359838>] (dw_mci_read_data_pio+0x0/0x1f0) from [<c0359b24>] (dw_mci_interrupt+0xfc/0x4a4)
[<c0359a28>] (dw_mci_interrupt+0x0/0x4a4) from [<c00c4738>] (handle_irq_event_percpu+0x7c/0x1b4)
[<c00c46bc>] (handle_irq_event_percpu+0x0/0x1b4) from [<c00c48b4>] (handle_irq_event+0x44/0x64)
[<c00c4870>] (handle_irq_event+0x0/0x64) from [<c00c7358>] (handle_fasteoi_irq+0xb4/0x124)
 r7:ffffed68 r6:c061e7cc r5:c00423ac r4:c061e780
 [<c00c72a4>] (handle_fasteoi_irq+0x0/0x124) from [<c00c4258>] (generic_handle_irq+0x30/0x38)
 r7:ffffed68 r6:c0618000 r5:ffffee38 r4:0000008d
 [<c00c4228>] (generic_handle_irq+0x0/0x38) from [<c004241c>] (asm_do_IRQ+0x64/0xe0)
 r5:ffffee38 r4:c00423ac
 [<c00423b8>] (asm_do_IRQ+0x0/0xe0) from [<c0048bc0>] (__irq_svc+0x80/0x14c)
Exception stack(0xc0619ed0 to 0xc0619f18)

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
 		2012-02-13 20:39:05 -05:00
..
Kconfig drivers: misc: Remove MISC_DEVICES config option 2012-01-24 16:24:02 -08:00
Makefile mmc: sdhci-pci: add platform data 2012-01-11 23:58:47 -05:00
at91_mci.c MMC highlights for 3.3: 2012-01-13 20:41:15 -08:00
at91_mci.h mmc: at91_mci: move register header from include/ to drivers/ 2011-07-21 10:35:08 -04:00
atmel-mci-regs.h mmc: atmel-mci: add pdc support and runtime capabilities detection 2011-10-26 15:43:26 -04:00
atmel-mci.c mmc: atmel-mci: save and restore sdioirq when soft reset is performed 2012-02-13 20:39:05 -05:00
au1xmmc.c MIPS: Alchemy: Au1300 SoC support 2011-12-07 22:02:05 +00:00
bfin_sdh.c mmc: convert drivers/mmc/host/* to use module_platform_driver() 2012-01-11 23:58:42 -05:00
cb710-mmc.c mmc: convert drivers/mmc/host/* to use module_platform_driver() 2012-01-11 23:58:42 -05:00
cb710-mmc.h mmc: Driver for CB710/720 memory card reader (MMC part) 2009-06-13 22:42:58 +02:00
davinci_mmc.c mmc: davinci: Add support for set_power callback 2011-09-17 15:53:23 +05:30
dw_mmc.c mmc: dw_mmc: Fix PIO mode with support of highmem 2012-02-13 20:39:05 -05:00
dw_mmc.h mmc: dw_mmc: fixed wrong bit operation for SDMMC_GET_FCNT() 2012-01-12 15:17:15 -05:00
imxmmc.c mmc: replace printk with appropriate display macro 2011-10-26 16:32:22 -04:00
imxmmc.h imxmmc: use readl/writel 2008-12-16 14:58:17 +01:00
jz4740_mmc.c mmc: convert drivers/mmc/host/* to use module_platform_driver() 2012-01-11 23:58:42 -05:00
mmc_spi.c mmc: Remove redundant spi driver bus initialization 2012-01-11 23:58:42 -05:00
mmci.c Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-01-17 18:40:24 -08:00
mmci.h mmc: mmci: implement pre_req() and post_req() 2011-07-20 17:21:11 -04:00
msm_sdcc.c mmc: remove the second argument of k[un]map_atomic() 2012-01-11 23:58:42 -05:00
msm_sdcc.h mmc: msm_sdcc: Use MCI_INT_MASK0 for PIO interrupts 2011-10-26 15:43:37 -04:00
mvsdio.c ARM: Orion: Get address map from plat-orion instead of via platform_data 2011-12-13 18:46:55 -05:00
mvsdio.h mmc: SDIO driver for Marvell SoCs 2009-03-24 21:30:03 +01:00
mxcmmc.c Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-01-17 18:40:24 -08:00
mxs-mmc.c Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-01-17 18:40:24 -08:00
of_mmc_spi.c mmc: of_mmc_spi: fix little endian support 2012-02-13 20:38:58 -05:00
omap.c misc latin1 to utf8 conversions 2012-01-02 13:04:55 +01:00
omap_hsmmc.c MMC highlights for 3.3: 2012-01-13 20:41:15 -08:00
pxamci.c mmc: convert drivers/mmc/host/* to use module_platform_driver() 2012-01-11 23:58:42 -05:00
pxamci.h
…
s3cmci.c mmc: convert drivers/mmc/host/* to use module_platform_driver() 2012-01-11 23:58:42 -05:00
s3cmci.h s3cmci: DMA fixes 2009-10-01 16:11:15 -07:00
sdhci-cns3xxx.c mmc: convert drivers/mmc/host/* to use module_platform_driver() 2012-01-11 23:58:42 -05:00
sdhci-dove.c mmc: convert drivers/mmc/host/* to use module_platform_driver() 2012-01-11 23:58:42 -05:00
sdhci-esdhc-imx.c mmc: convert drivers/mmc/host/* to use module_platform_driver() 2012-01-11 23:58:42 -05:00
sdhci-esdhc.h mmc: sdhci-esdhc: Change delay after setting clock from 100ms to 1ms 2012-01-11 23:58:41 -05:00
sdhci-of-esdhc.c mmc: esdhc: fix errors when booting kernel on Freescale eSDHC version 2.3 2012-02-12 00:24:24 -05:00
sdhci-of-hlwd.c mmc: convert drivers/mmc/host/* to use module_platform_driver() 2012-01-11 23:58:42 -05:00
sdhci-pci-data.c mmc: sdhci-pci: add platform data 2012-01-11 23:58:47 -05:00
sdhci-pci.c mmc: sdhci-pci: set Medfield SDIO as non-removable 2012-02-13 20:39:01 -05:00
sdhci-pltfm.c mmc: esdhc: set the timeout to the max value 2012-02-13 20:38:59 -05:00
sdhci-pltfm.h mmc: sdhci: remove "state" argument from sdhci_suspend_host 2011-12-19 15:50:11 -08:00
sdhci-pxav2.c mmc: convert drivers/mmc/host/* to use module_platform_driver() 2012-01-11 23:58:42 -05:00
sdhci-pxav3.c mmc: convert drivers/mmc/host/* to use module_platform_driver() 2012-01-11 23:58:42 -05:00
sdhci-s3c.c MMC highlights for 3.3: 2012-01-13 20:41:15 -08:00
sdhci-spear.c mmc: sdhci-spear: Fix compilation error 2012-01-12 15:17:09 -05:00
sdhci-tegra.c mmc: convert drivers/mmc/host/* to use module_platform_driver() 2012-01-11 23:58:42 -05:00
sdhci.c mmc: sdhci: restore the enabled dma when do reset all 2012-01-12 15:17:17 -05:00
sdhci.h mmc: host: Adds support for eMMC 4.5 HS200 mode 2012-01-12 15:17:16 -05:00
sdricoh_cs.c mmc: Add module.h to drivers/mmc users assuming implicit presence. 2011-10-26 16:32:19 -04:00
sh_mmcif.c mmc: sh_mmcif: fix late delayed work initialisation 2012-02-13 20:39:03 -05:00
sh_mobile_sdhi.c mmc: convert drivers/mmc/host/* to use module_platform_driver() 2012-01-11 23:58:42 -05:00
tifm_sd.c Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1 2012-01-14 12:32:16 -08:00
tmio_mmc.c mmc: convert drivers/mmc/host/* to use module_platform_driver() 2012-01-11 23:58:42 -05:00
tmio_mmc.h mmc: tmio_mmc: fix card eject during IO with DMA 2012-02-13 20:39:03 -05:00
tmio_mmc_dma.c mmc: tmio_mmc: fix card eject during IO with DMA 2012-02-13 20:39:03 -05:00
tmio_mmc_pio.c mmc: tmio_mmc: fix card eject during IO with DMA 2012-02-13 20:39:03 -05:00
ushc.c USB: convert some miscellanies drivers to use module_usb_driver() 2011-11-18 09:52:10 -08:00
via-sdmmc.c mmc: replace printk with appropriate display macro 2011-10-26 16:32:22 -04:00
vub300.c module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
wbsd.c mmc: replace printk with appropriate display macro 2011-10-26 16:32:22 -04:00
wbsd.h
…