From patchwork Wed Feb 3 14:44:12 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guennadi Liakhovetski X-Patchwork-Id: 76707 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o13EhxRJ013911 for ; Wed, 3 Feb 2010 14:43:59 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754792Ab0BCOn6 (ORCPT ); Wed, 3 Feb 2010 09:43:58 -0500 Received: from mail.gmx.net ([213.165.64.20]:45392 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1754721Ab0BCOn5 (ORCPT ); Wed, 3 Feb 2010 09:43:57 -0500 Received: (qmail invoked by alias); 03 Feb 2010 14:43:55 -0000 Received: from p57BD1A11.dip0.t-ipconnect.de (EHLO axis700.grange) [87.189.26.17] by mail.gmx.net (mp018) with SMTP; 03 Feb 2010 15:43:55 +0100 X-Authenticated: #20450766 X-Provags-ID: V01U2FsdGVkX1+0hQFcxnu0Lf4VeA5p8ZpEnfddz8QeoUAbQtsm8q kpY5uQubZufhkh Received: from lyakh (helo=localhost) by axis700.grange with local-esmtp (Exim 4.63) (envelope-from ) id 1NcgSi-0004HT-Qg; Wed, 03 Feb 2010 15:44:12 +0100 Date: Wed, 3 Feb 2010 15:44:12 +0100 (CET) From: Guennadi Liakhovetski To: Dan Williams cc: "linux-sh@vger.kernel.org" , Nobuhiro Iwamatsu , Paul Mundt Subject: [PATCH 2/3 v4] sh: fix Transfer Size calculation in both DMA drivers In-Reply-To: <4B692029.8020508@intel.com> Message-ID: References: <4B692029.8020508@intel.com> MIME-Version: 1.0 X-Y-GMX-Trusted: 0 X-FuHaFi: 0.42999999999999999 Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Wed, 03 Feb 2010 14:43:59 +0000 (UTC) diff --git a/arch/sh/drivers/dma/dma-sh.c b/arch/sh/drivers/dma/dma-sh.c index 565cc1a..8272087 100644 --- a/arch/sh/drivers/dma/dma-sh.c +++ b/arch/sh/drivers/dma/dma-sh.c @@ -52,11 +52,14 @@ static inline unsigned int get_dmte_irq(unsigned int chan) * * iterations to complete the transfer. */ +static unsigned int ts_shift[] = TS_SHIFT; static inline unsigned int calc_xmit_shift(struct dma_channel *chan) { u32 chcr = __raw_readl(dma_base_addr[chan->chan] + CHCR); + int cnt = ((chcr & CHCR_TS_LOW_MASK) >> CHCR_TS_LOW_SHIFT) | + ((chcr & CHCR_TS_HIGH_MASK) >> CHCR_TS_HIGH_SHIFT); - return ts_shift[(chcr & CHCR_TS_MASK)>>CHCR_TS_SHIFT]; + return ts_shift[cnt]; } /* diff --git a/arch/sh/include/asm/dma-sh.h b/arch/sh/include/asm/dma-sh.h index 47de109..b22926d 100644 --- a/arch/sh/include/asm/dma-sh.h +++ b/arch/sh/include/asm/dma-sh.h @@ -83,7 +83,7 @@ static int dmte_irq_map[] __maybe_unused = { * Define the default configuration for dual address memory-memory transfer. * The 0x400 value represents auto-request, external->external. */ -#define RS_DUAL (DM_INC | SM_INC | 0x400 | TS_32) +#define RS_DUAL (DM_INC | SM_INC | 0x400 | TS_INDEX2VAL(XMIT_SZ_32BIT)) /* DMA base address */ static u32 dma_base_addr[] __maybe_unused = { diff --git a/arch/sh/include/cpu-sh3/cpu/dma.h b/arch/sh/include/cpu-sh3/cpu/dma.h index 0ea15f3..207811a 100644 --- a/arch/sh/include/cpu-sh3/cpu/dma.h +++ b/arch/sh/include/cpu-sh3/cpu/dma.h @@ -20,8 +20,10 @@ #define TS_32 0x00000010 #define TS_128 0x00000018 -#define CHCR_TS_MASK 0x18 -#define CHCR_TS_SHIFT 3 +#define CHCR_TS_LOW_MASK 0x18 +#define CHCR_TS_LOW_SHIFT 3 +#define CHCR_TS_HIGH_MASK 0 +#define CHCR_TS_HIGH_SHIFT 0 #define DMAOR_INIT DMAOR_DME @@ -36,11 +38,13 @@ enum { XMIT_SZ_128BIT, }; -static unsigned int ts_shift[] __maybe_unused = { - [XMIT_SZ_8BIT] = 0, - [XMIT_SZ_16BIT] = 1, - [XMIT_SZ_32BIT] = 2, - [XMIT_SZ_128BIT] = 4, -}; +#define TS_SHIFT { \ + [XMIT_SZ_8BIT] = 0, \ + [XMIT_SZ_16BIT] = 1, \ + [XMIT_SZ_32BIT] = 2, \ + [XMIT_SZ_128BIT] = 4, \ +} + +#define TS_INDEX2VAL(i) (((i) & 3) << CHCR_TS_LOW_SHIFT) #endif /* __ASM_CPU_SH3_DMA_H */ diff --git a/arch/sh/include/cpu-sh4/cpu/dma-sh4a.h b/arch/sh/include/cpu-sh4/cpu/dma-sh4a.h index c4ed660..cc1cf3e 100644 --- a/arch/sh/include/cpu-sh4/cpu/dma-sh4a.h +++ b/arch/sh/include/cpu-sh4/cpu/dma-sh4a.h @@ -2,13 +2,26 @@ #define __ASM_SH_CPU_SH4_DMA_SH7780_H #if defined(CONFIG_CPU_SUBTYPE_SH7343) || \ - defined(CONFIG_CPU_SUBTYPE_SH7722) || \ defined(CONFIG_CPU_SUBTYPE_SH7730) #define DMTE0_IRQ 48 #define DMTE4_IRQ 76 #define DMAE0_IRQ 78 /* DMA Error IRQ*/ #define SH_DMAC_BASE0 0xFE008020 #define SH_DMARS_BASE 0xFE009000 +#define CHCR_TS_LOW_MASK 0x00000018 +#define CHCR_TS_LOW_SHIFT 3 +#define CHCR_TS_HIGH_MASK 0 +#define CHCR_TS_HIGH_SHIFT 0 +#elif defined(CONFIG_CPU_SUBTYPE_SH7722) +#define DMTE0_IRQ 48 +#define DMTE4_IRQ 76 +#define DMAE0_IRQ 78 /* DMA Error IRQ*/ +#define SH_DMAC_BASE0 0xFE008020 +#define SH_DMARS_BASE 0xFE009000 +#define CHCR_TS_LOW_MASK 0x00000018 +#define CHCR_TS_LOW_SHIFT 3 +#define CHCR_TS_HIGH_MASK 0x00300000 +#define CHCR_TS_HIGH_SHIFT 20 #elif defined(CONFIG_CPU_SUBTYPE_SH7763) || \ defined(CONFIG_CPU_SUBTYPE_SH7764) #define DMTE0_IRQ 34 @@ -16,8 +29,11 @@ #define DMAE0_IRQ 38 #define SH_DMAC_BASE0 0xFF608020 #define SH_DMARS_BASE 0xFF609000 -#elif defined(CONFIG_CPU_SUBTYPE_SH7723) || \ - defined(CONFIG_CPU_SUBTYPE_SH7724) +#define CHCR_TS_LOW_MASK 0x00000018 +#define CHCR_TS_LOW_SHIFT 3 +#define CHCR_TS_HIGH_MASK 0 +#define CHCR_TS_HIGH_SHIFT 0 +#elif defined(CONFIG_CPU_SUBTYPE_SH7723) #define DMTE0_IRQ 48 /* DMAC0A*/ #define DMTE4_IRQ 76 /* DMAC0B */ #define DMTE6_IRQ 40 @@ -30,6 +46,27 @@ #define SH_DMAC_BASE0 0xFE008020 #define SH_DMAC_BASE1 0xFDC08020 #define SH_DMARS_BASE 0xFDC09000 +#define CHCR_TS_LOW_MASK 0x00000018 +#define CHCR_TS_LOW_SHIFT 3 +#define CHCR_TS_HIGH_MASK 0 +#define CHCR_TS_HIGH_SHIFT 0 +#elif defined(CONFIG_CPU_SUBTYPE_SH7724) +#define DMTE0_IRQ 48 /* DMAC0A*/ +#define DMTE4_IRQ 76 /* DMAC0B */ +#define DMTE6_IRQ 40 +#define DMTE8_IRQ 42 /* DMAC1A */ +#define DMTE9_IRQ 43 +#define DMTE10_IRQ 72 /* DMAC1B */ +#define DMTE11_IRQ 73 +#define DMAE0_IRQ 78 /* DMA Error IRQ*/ +#define DMAE1_IRQ 74 /* DMA Error IRQ*/ +#define SH_DMAC_BASE0 0xFE008020 +#define SH_DMAC_BASE1 0xFDC08020 +#define SH_DMARS_BASE 0xFDC09000 +#define CHCR_TS_LOW_MASK 0x00000018 +#define CHCR_TS_LOW_SHIFT 3 +#define CHCR_TS_HIGH_MASK 0x00600000 +#define CHCR_TS_HIGH_SHIFT 21 #elif defined(CONFIG_CPU_SUBTYPE_SH7780) #define DMTE0_IRQ 34 #define DMTE4_IRQ 44 @@ -42,6 +79,10 @@ #define SH_DMAC_BASE0 0xFC808020 #define SH_DMAC_BASE1 0xFC818020 #define SH_DMARS_BASE 0xFC809000 +#define CHCR_TS_LOW_MASK 0x00000018 +#define CHCR_TS_LOW_SHIFT 3 +#define CHCR_TS_HIGH_MASK 0 +#define CHCR_TS_HIGH_SHIFT 0 #else /* SH7785 */ #define DMTE0_IRQ 33 #define DMTE4_IRQ 37 @@ -55,17 +96,16 @@ #define SH_DMAC_BASE0 0xFC808020 #define SH_DMAC_BASE1 0xFCC08020 #define SH_DMARS_BASE 0xFC809000 +#define CHCR_TS_LOW_MASK 0x00000018 +#define CHCR_TS_LOW_SHIFT 3 +#define CHCR_TS_HIGH_MASK 0 +#define CHCR_TS_HIGH_SHIFT 0 #endif -#define REQ_HE 0x000000C0 -#define REQ_H 0x00000080 -#define REQ_LE 0x00000040 -#define TM_BURST 0x0000020 -#define TS_8 0x00000000 -#define TS_16 0x00000008 -#define TS_32 0x00000010 -#define TS_16BLK 0x00000018 -#define TS_32BLK 0x00100000 +#define REQ_HE 0x000000C0 +#define REQ_H 0x00000080 +#define REQ_LE 0x00000040 +#define TM_BURST 0x00000020 /* * The SuperH DMAC supports a number of transmit sizes, we list them here, @@ -74,22 +114,31 @@ * Defaults to a 64-bit transfer size. */ enum { - XMIT_SZ_8BIT, - XMIT_SZ_16BIT, - XMIT_SZ_32BIT, - XMIT_SZ_128BIT, - XMIT_SZ_256BIT, + XMIT_SZ_8BIT = 0, + XMIT_SZ_16BIT = 1, + XMIT_SZ_32BIT = 2, + XMIT_SZ_64BIT = 7, + XMIT_SZ_128BIT = 3, + XMIT_SZ_256BIT = 4, + XMIT_SZ_128BIT_BLK = 0xb, + XMIT_SZ_256BIT_BLK = 0xc, }; /* * The DMA count is defined as the number of bytes to transfer. */ -static unsigned int ts_shift[] __maybe_unused = { - [XMIT_SZ_8BIT] = 0, - [XMIT_SZ_16BIT] = 1, - [XMIT_SZ_32BIT] = 2, - [XMIT_SZ_128BIT] = 4, - [XMIT_SZ_256BIT] = 5, -}; +#define TS_SHIFT { \ + [XMIT_SZ_8BIT] = 0, \ + [XMIT_SZ_16BIT] = 1, \ + [XMIT_SZ_32BIT] = 2, \ + [XMIT_SZ_64BIT] = 3, \ + [XMIT_SZ_128BIT] = 4, \ + [XMIT_SZ_256BIT] = 5, \ + [XMIT_SZ_128BIT_BLK] = 4, \ + [XMIT_SZ_256BIT_BLK] = 5, \ +} + +#define TS_INDEX2VAL(i) ((((i) & 3) << CHCR_TS_LOW_SHIFT) | \ + ((((i) >> 2) & 3) << CHCR_TS_HIGH_SHIFT)) #endif /* __ASM_SH_CPU_SH4_DMA_SH7780_H */ diff --git a/arch/sh/include/cpu-sh4/cpu/dma.h b/arch/sh/include/cpu-sh4/cpu/dma.h index bcb3024..114a369 100644 --- a/arch/sh/include/cpu-sh4/cpu/dma.h +++ b/arch/sh/include/cpu-sh4/cpu/dma.h @@ -6,8 +6,6 @@ #ifdef CONFIG_CPU_SH4A #define DMAOR_INIT (DMAOR_DME) -#define CHCR_TS_MASK 0x18 -#define CHCR_TS_SHIFT 3 #include #else /* CONFIG_CPU_SH4A */ @@ -29,8 +27,10 @@ #define TS_32 0x00000030 #define TS_64 0x00000000 -#define CHCR_TS_MASK 0x70 -#define CHCR_TS_SHIFT 4 +#define CHCR_TS_LOW_MASK 0x70 +#define CHCR_TS_LOW_SHIFT 4 +#define CHCR_TS_HIGH_MASK 0 +#define CHCR_TS_HIGH_SHIFT 0 #define DMAOR_COD 0x00000008 @@ -41,23 +41,26 @@ * Defaults to a 64-bit transfer size. */ enum { - XMIT_SZ_64BIT, - XMIT_SZ_8BIT, - XMIT_SZ_16BIT, - XMIT_SZ_32BIT, - XMIT_SZ_256BIT, + XMIT_SZ_8BIT = 1, + XMIT_SZ_16BIT = 2, + XMIT_SZ_32BIT = 3, + XMIT_SZ_64BIT = 0, + XMIT_SZ_256BIT = 4, }; /* * The DMA count is defined as the number of bytes to transfer. */ -static unsigned int ts_shift[] __maybe_unused = { - [XMIT_SZ_64BIT] = 3, - [XMIT_SZ_8BIT] = 0, - [XMIT_SZ_16BIT] = 1, - [XMIT_SZ_32BIT] = 2, - [XMIT_SZ_256BIT] = 5, -}; +#define TS_SHIFT { \ + [XMIT_SZ_8BIT] = 0, \ + [XMIT_SZ_16BIT] = 1, \ + [XMIT_SZ_32BIT] = 2, \ + [XMIT_SZ_64BIT] = 3, \ + [XMIT_SZ_256BIT] = 5, \ +} + +#define TS_INDEX2VAL(i) (((i) & 7) << CHCR_TS_LOW_SHIFT) + #endif #endif /* __ASM_CPU_SH4_DMA_H */ diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c index 427c3ef..3e1037c 100644 --- a/drivers/dma/shdma.c +++ b/drivers/dma/shdma.c @@ -105,10 +105,14 @@ static bool dmae_is_busy(struct sh_dmae_chan *sh_chan) return false; /* waiting */ } +static unsigned int ts_shift[] = TS_SHIFT; static inline unsigned int calc_xmit_shift(struct sh_dmae_chan *sh_chan) { u32 chcr = sh_dmae_readl(sh_chan, CHCR); - return ts_shift[(chcr & CHCR_TS_MASK) >> CHCR_TS_SHIFT]; + int cnt = ((chcr & CHCR_TS_LOW_MASK) >> CHCR_TS_LOW_SHIFT) | + ((chcr & CHCR_TS_HIGH_MASK) >> CHCR_TS_HIGH_SHIFT); + + return ts_shift[cnt]; } static void dmae_set_reg(struct sh_dmae_chan *sh_chan, struct sh_dmae_regs *hw)