#ifndef __SOUND_CS5535AUDIO_H
#define __SOUND_CS5535AUDIO_H
#define cs_writel(cs5535au, reg, val) outl(val, (cs5535au)->port + reg)
#define cs_writeb(cs5535au, reg, val) outb(val, (cs5535au)->port + reg)
#define cs_readl(cs5535au, reg) inl((cs5535au)->port + reg)
#define cs_readw(cs5535au, reg) inw((cs5535au)->port + reg)
#define cs_readb(cs5535au, reg) inb((cs5535au)->port + reg)
#define CS5535AUDIO_MAX_DESCRIPTORS 128
/* acc_codec bar0 reg addrs */
#define ACC_GPIO_STATUS 0x00
#define ACC_CODEC_STATUS 0x08
#define ACC_CODEC_CNTL 0x0C
#define ACC_IRQ_STATUS 0x12
#define ACC_BM0_CMD 0x20
#define ACC_BM1_CMD 0x28
#define ACC_BM0_PRD 0x24
#define ACC_BM1_PRD 0x2C
#define ACC_BM0_STATUS 0x21
#define ACC_BM1_STATUS 0x29
#define ACC_BM0_PNTR 0x60
#define ACC_BM1_PNTR 0x64
/* acc_codec bar0 reg bits */
/* ACC_IRQ_STATUS */
#define IRQ_STS 0
#define WU_IRQ_STS 1
#define BM0_IRQ_STS 2
#define BM1_IRQ_STS 3
/* ACC_BMX_STATUS */
#define EOP (1<<0)
#define BM_EOP_ERR (1<<1)
/* ACC_BMX_CTL */
#define BM_CTL_EN 0x01
#define BM_CTL_PAUSE 0x03
#define BM_CTL_DIS 0x00
#define BM_CTL_BYTE_ORD_LE 0x00
#define BM_CTL_BYTE_ORD_BE 0x04
/* cs5535 specific ac97 codec register defines */
#define CMD_MASK 0xFF00FFFF
#define CMD_NEW 0x00010000
#define STS_NEW 0x00020000
#define PRM_RDY_STS 0x00800000
#define ACC_CODEC_CNTL_WR_CMD (~0x80000000)
#define ACC_CODEC_CNTL_RD_CMD 0x80000000
#define ACC_CODEC_CNTL_LNK_SHUTDOWN 0x00040000
#define ACC_CODEC_CNTL_LNK_WRM_RST 0x00020000
#define PRD_JMP 0x2000
#define PRD_EOP 0x4000
#define PRD_EOT 0x8000
enum { CS5535AUDIO_DMA_PLAYBACK, CS5535AUDIO_DMA_CAPTURE, NUM_CS5535AUDIO_DMAS };
struct cs5535audio;
struct cs5535audio_dma_ops {
int type;
void (*enable_dma)(struct cs5535audio *cs5535au);
void (*disable_dma)(struct cs5535audio *cs5535au);
void (*pause_dma)(struct cs5535audio *cs5535au);
void (*setup_prd)(struct cs5535audio *cs5535au, u32 prd_addr);
u32 (*read_prd)(struct cs5535audio *cs5535au);
u32 (*read_dma_pntr)(struct cs5535audio *cs5535au);
};
struct cs5535audio_dma_desc {
u32 addr;
u16 size;
u16 ctlreserved;
};
struct cs5535audio_dma {
const struct cs5535audio_dma_ops *ops;
struct snd_dma_buffer desc_buf;
struct snd_pcm_substream *substream;
unsigned int buf_addr, buf_bytes;
unsigned int period_bytes, periods;
u32 saved_prd;
int pcm_open_flag;
};
struct cs5535audio {
struct snd_card *card;
struct snd_ac97 *ac97;
struct snd_pcm *pcm;
int irq;
struct pci_dev *pci;
unsigned long port;
spinlock_t reg_lock;
struct snd_pcm_substream *playback_substream;
struct snd_pcm_substream *capture_substream;
struct cs5535audio_dma dmas[NUM_CS5535AUDIO_DMAS];
};
extern const struct dev_pm_ops snd_cs5535audio_pm;
#ifdef CONFIG_OLPC
void olpc_prequirks(struct snd_card *card,
struct snd_ac97_template *ac97);
int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97);
void olpc_quirks_cleanup(void);
void olpc_analog_input(struct snd_ac97 *ac97, int on);
void olpc_mic_bias(struct snd_ac97 *ac97, int on);
static inline void olpc_capture_open(struct snd_ac97 *ac97)
{
/* default to Analog Input off */
olpc_analog_input(ac97, 0);
/* enable MIC Bias for recording */
olpc_mic_bias(ac97, 1);
}
static inline void olpc_capture_close(struct snd_ac97 *ac97)
{
/* disable Analog Input */
olpc_analog_input(ac97, 0);
/* disable the MIC Bias (so the recording LED turns off) */
olpc_mic_bias(ac97, 0);
}
#else
static inline void olpc_prequirks(struct snd_card *card,
struct snd_ac97_template *ac97) { }
static inline int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97)
{
return 0;
}
static inline void olpc_quirks_cleanup(void) { }
static inline void olpc_analog_input(struct snd_ac97 *ac97, int on) { }
static inline void olpc_mic_bias(struct snd_ac97 *ac97, int on) { }
static inline void olpc_capture_open(struct snd_ac97 *ac97) { }
static inline void olpc_capture_close(struct snd_ac97 *ac97) { }
#endif
int snd_cs5535audio_pcm(struct cs5535audio *cs5535audio);
#endif /* __SOUND_CS5535AUDIO_H */
'label'>space:include ignore mode: unified ssdiff stat only powerpc/mm: Fix spurrious segfaults on radix with autonuma
When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it
clears all the protection bits but leave the PTE valid.
With the Radix MMU, an attempt at executing from such a PTE will
take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G".
It is thus incorrect to treat all such faults as errors. We should
pass them to handle_mm_fault() for autonuma to deal with. The case
of pages that are really not executable is handled by the existing
test for VM_EXEC further down.
That leaves us with catching the kernel attempts at executing user
pages. We can catch that earlier, even before we do find_vma.
It is never valid on powerpc for the kernel to take an exec fault
to begin with. So fold that test with the existing test for the
kernel faulting on kernel addresses to bail out early.
Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report")
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>