From: Paul Walmsley Date: Fri, 18 Jul 2008 08:22:07 +0000 (-0600) Subject: OMAP2/3 clockdomains: combine pwrdm, pwrdm_name into union in struct clockdomain X-Git-Tag: v2.6.26-omap1~25 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=718fc6cd4db902aa2242a736cc3feb8744a4c71a;p=linux-2.6-omap-h63xx.git OMAP2/3 clockdomains: combine pwrdm, pwrdm_name into union in struct clockdomain struct clockdomain contains a struct powerdomain *pwrdm and const char *pwrdm_name. The pwrdm_name is only used at initialization to look up the appropriate pwrdm pointer. Combining these into a union saves about 100 bytes on 3430SDP. This patch should not cause any change in kernel function. Boot-tested on 3430SDP ES2. Signed-off-by: Paul Walmsley size: text data bss dec hex filename 3391587 157104 107136 3655827 37c893 vmlinux.3430sdp.orig 3391555 157032 107136 3655723 37c82b vmlinux.3430sdp Signed-off-by: Tony Lindgren --- diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c index 6e5f892d287..caa79924aac 100644 --- a/arch/arm/mach-omap2/clockdomain.c +++ b/arch/arm/mach-omap2/clockdomain.c @@ -71,14 +71,14 @@ static void _autodep_lookup(struct clkdm_pwrdm_autodep *autodep) if (!omap_chip_is(autodep->omap_chip)) return; - pwrdm = pwrdm_lookup(autodep->pwrdm_name); + pwrdm = pwrdm_lookup(autodep->pwrdm.name); if (!pwrdm) { pr_debug("clockdomain: _autodep_lookup: powerdomain %s " - "does not exist\n", autodep->pwrdm_name); + "does not exist\n", autodep->pwrdm.name); WARN_ON(1); return; } - autodep->pwrdm = pwrdm; + autodep->pwrdm.ptr = pwrdm; return; } @@ -95,16 +95,13 @@ static void _clkdm_add_autodeps(struct clockdomain *clkdm) { struct clkdm_pwrdm_autodep *autodep; - for (autodep = autodeps; autodep->pwrdm_name; autodep++) { - if (!autodep->pwrdm) - continue; - + for (autodep = autodeps; autodep->pwrdm.ptr; autodep++) { pr_debug("clockdomain: adding %s sleepdep/wkdep for " - "pwrdm %s\n", autodep->pwrdm_name, - clkdm->pwrdm->name); + "pwrdm %s\n", autodep->pwrdm.ptr->name, + clkdm->pwrdm.ptr->name); - pwrdm_add_sleepdep(clkdm->pwrdm, autodep->pwrdm); - pwrdm_add_wkdep(clkdm->pwrdm, autodep->pwrdm); + pwrdm_add_sleepdep(clkdm->pwrdm.ptr, autodep->pwrdm.ptr); + pwrdm_add_wkdep(clkdm->pwrdm.ptr, autodep->pwrdm.ptr); } } @@ -120,16 +117,13 @@ static void _clkdm_del_autodeps(struct clockdomain *clkdm) { struct clkdm_pwrdm_autodep *autodep; - for (autodep = autodeps; autodep->pwrdm_name; autodep++) { - if (!autodep->pwrdm) - continue; - + for (autodep = autodeps; autodep->pwrdm.ptr; autodep++) { pr_debug("clockdomain: removing %s sleepdep/wkdep for " - "pwrdm %s\n", autodep->pwrdm_name, - clkdm->pwrdm->name); + "pwrdm %s\n", autodep->pwrdm.ptr->name, + clkdm->pwrdm.ptr->name); - pwrdm_del_sleepdep(clkdm->pwrdm, autodep->pwrdm); - pwrdm_del_wkdep(clkdm->pwrdm, autodep->pwrdm); + pwrdm_del_sleepdep(clkdm->pwrdm.ptr, autodep->pwrdm.ptr); + pwrdm_del_wkdep(clkdm->pwrdm.ptr, autodep->pwrdm.ptr); } } @@ -179,7 +173,7 @@ void clkdm_init(struct clockdomain **clkdms, autodeps = init_autodeps; if (autodeps) - for (autodep = autodeps; autodep->pwrdm_name; autodep++) + for (autodep = autodeps; autodep->pwrdm.ptr; autodep++) _autodep_lookup(autodep); } @@ -202,13 +196,13 @@ int clkdm_register(struct clockdomain *clkdm) if (!omap_chip_is(clkdm->omap_chip)) return -EINVAL; - pwrdm = pwrdm_lookup(clkdm->pwrdm_name); + pwrdm = pwrdm_lookup(clkdm->pwrdm.name); if (!pwrdm) { pr_debug("clockdomain: clkdm_register %s: powerdomain %s " - "does not exist\n", clkdm->name, clkdm->pwrdm_name); + "does not exist\n", clkdm->name, clkdm->pwrdm.name); return -EINVAL; } - clkdm->pwrdm = pwrdm; + clkdm->pwrdm.ptr = pwrdm; mutex_lock(&clkdm_mutex); /* Verify that the clockdomain is not already registered */ @@ -242,7 +236,7 @@ int clkdm_unregister(struct clockdomain *clkdm) if (!clkdm) return -EINVAL; - pwrdm_del_clkdm(clkdm->pwrdm, clkdm); + pwrdm_del_clkdm(clkdm->pwrdm.ptr, clkdm); mutex_lock(&clkdm_mutex); list_del(&clkdm->node); @@ -327,7 +321,7 @@ struct powerdomain *clkdm_get_pwrdm(struct clockdomain *clkdm) if (!clkdm) return NULL; - return clkdm->pwrdm; + return clkdm->pwrdm.ptr; } @@ -348,7 +342,7 @@ static int omap2_clkdm_clktrctrl_read(struct clockdomain *clkdm) if (!clkdm) return -EINVAL; - v = cm_read_mod_reg(clkdm->pwrdm->prcm_offs, CM_CLKSTCTRL); + v = cm_read_mod_reg(clkdm->pwrdm.ptr->prcm_offs, CM_CLKSTCTRL); v &= clkdm->clktrctrl_mask; v >>= __ffs(clkdm->clktrctrl_mask); @@ -380,7 +374,7 @@ int omap2_clkdm_sleep(struct clockdomain *clkdm) if (cpu_is_omap24xx()) { cm_set_mod_reg_bits(OMAP24XX_FORCESTATE, - clkdm->pwrdm->prcm_offs, PM_PWSTCTRL); + clkdm->pwrdm.ptr->prcm_offs, PM_PWSTCTRL); } else if (cpu_is_omap34xx()) { @@ -388,7 +382,7 @@ int omap2_clkdm_sleep(struct clockdomain *clkdm) __ffs(clkdm->clktrctrl_mask)); cm_rmw_mod_reg_bits(clkdm->clktrctrl_mask, v, - clkdm->pwrdm->prcm_offs, CM_CLKSTCTRL); + clkdm->pwrdm.ptr->prcm_offs, CM_CLKSTCTRL); } else { BUG(); @@ -422,7 +416,7 @@ int omap2_clkdm_wakeup(struct clockdomain *clkdm) if (cpu_is_omap24xx()) { cm_clear_mod_reg_bits(OMAP24XX_FORCESTATE, - clkdm->pwrdm->prcm_offs, PM_PWSTCTRL); + clkdm->pwrdm.ptr->prcm_offs, PM_PWSTCTRL); } else if (cpu_is_omap34xx()) { @@ -430,7 +424,7 @@ int omap2_clkdm_wakeup(struct clockdomain *clkdm) __ffs(clkdm->clktrctrl_mask)); cm_rmw_mod_reg_bits(clkdm->clktrctrl_mask, v, - clkdm->pwrdm->prcm_offs, CM_CLKSTCTRL); + clkdm->pwrdm.ptr->prcm_offs, CM_CLKSTCTRL); } else { BUG(); @@ -478,7 +472,7 @@ void omap2_clkdm_allow_idle(struct clockdomain *clkdm) cm_rmw_mod_reg_bits(clkdm->clktrctrl_mask, v << __ffs(clkdm->clktrctrl_mask), - clkdm->pwrdm->prcm_offs, + clkdm->pwrdm.ptr->prcm_offs, CM_CLKSTCTRL); } @@ -516,7 +510,7 @@ void omap2_clkdm_deny_idle(struct clockdomain *clkdm) cm_rmw_mod_reg_bits(clkdm->clktrctrl_mask, v << __ffs(clkdm->clktrctrl_mask), - clkdm->pwrdm->prcm_offs, CM_CLKSTCTRL); + clkdm->pwrdm.ptr->prcm_offs, CM_CLKSTCTRL); if (atomic_read(&clkdm->usecount) > 0) _clkdm_del_autodeps(clkdm); diff --git a/arch/arm/mach-omap2/clockdomains.h b/arch/arm/mach-omap2/clockdomains.h index b5d3244aa61..85590809ab2 100644 --- a/arch/arm/mach-omap2/clockdomains.h +++ b/arch/arm/mach-omap2/clockdomains.h @@ -19,7 +19,7 @@ /* This is an implicit clockdomain - it is never defined as such in TRM */ static struct clockdomain wkup_clkdm = { .name = "wkup_clkdm", - .pwrdm_name = "wkup_pwrdm", + .pwrdm = { .name = "wkup_pwrdm" }, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX | CHIP_IS_OMAP3430), }; @@ -31,7 +31,7 @@ static struct clockdomain wkup_clkdm = { static struct clockdomain mpu_2420_clkdm = { .name = "mpu_clkdm", - .pwrdm_name = "mpu_pwrdm", + .pwrdm = { .name = "mpu_pwrdm" }, .flags = CLKDM_CAN_HWSUP, .clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420), @@ -39,7 +39,7 @@ static struct clockdomain mpu_2420_clkdm = { static struct clockdomain iva1_2420_clkdm = { .name = "iva1_clkdm", - .pwrdm_name = "dsp_pwrdm", + .pwrdm = { .name = "dsp_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .clktrctrl_mask = OMAP2420_AUTOSTATE_IVA_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420), @@ -56,7 +56,7 @@ static struct clockdomain iva1_2420_clkdm = { static struct clockdomain mpu_2430_clkdm = { .name = "mpu_clkdm", - .pwrdm_name = "mpu_pwrdm", + .pwrdm = { .name = "mpu_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430), @@ -64,7 +64,7 @@ static struct clockdomain mpu_2430_clkdm = { static struct clockdomain mdm_clkdm = { .name = "mdm_clkdm", - .pwrdm_name = "mdm_pwrdm", + .pwrdm = { .name = "mdm_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .clktrctrl_mask = OMAP2430_AUTOSTATE_MDM_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430), @@ -81,7 +81,7 @@ static struct clockdomain mdm_clkdm = { static struct clockdomain dsp_clkdm = { .name = "dsp_clkdm", - .pwrdm_name = "dsp_pwrdm", + .pwrdm = { .name = "dsp_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .clktrctrl_mask = OMAP24XX_AUTOSTATE_DSP_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX), @@ -89,7 +89,7 @@ static struct clockdomain dsp_clkdm = { static struct clockdomain gfx_24xx_clkdm = { .name = "gfx_clkdm", - .pwrdm_name = "gfx_pwrdm", + .pwrdm = { .name = "gfx_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .clktrctrl_mask = OMAP24XX_AUTOSTATE_GFX_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX), @@ -97,7 +97,7 @@ static struct clockdomain gfx_24xx_clkdm = { static struct clockdomain core_l3_24xx_clkdm = { .name = "core_l3_clkdm", - .pwrdm_name = "core_pwrdm", + .pwrdm = { .name = "core_pwrdm" }, .flags = CLKDM_CAN_HWSUP, .clktrctrl_mask = OMAP24XX_AUTOSTATE_L3_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX), @@ -105,7 +105,7 @@ static struct clockdomain core_l3_24xx_clkdm = { static struct clockdomain core_l4_24xx_clkdm = { .name = "core_l4_clkdm", - .pwrdm_name = "core_pwrdm", + .pwrdm = { .name = "core_pwrdm" }, .flags = CLKDM_CAN_HWSUP, .clktrctrl_mask = OMAP24XX_AUTOSTATE_L4_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX), @@ -113,7 +113,7 @@ static struct clockdomain core_l4_24xx_clkdm = { static struct clockdomain dss_24xx_clkdm = { .name = "dss_clkdm", - .pwrdm_name = "core_pwrdm", + .pwrdm = { .name = "core_pwrdm" }, .flags = CLKDM_CAN_HWSUP, .clktrctrl_mask = OMAP24XX_AUTOSTATE_DSS_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX), @@ -130,7 +130,7 @@ static struct clockdomain dss_24xx_clkdm = { static struct clockdomain mpu_34xx_clkdm = { .name = "mpu_clkdm", - .pwrdm_name = "mpu_pwrdm", + .pwrdm = { .name = "mpu_pwrdm" }, .flags = CLKDM_CAN_HWSUP | CLKDM_CAN_FORCE_WAKEUP, .clktrctrl_mask = OMAP3430_CLKTRCTRL_MPU_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430), @@ -138,7 +138,7 @@ static struct clockdomain mpu_34xx_clkdm = { static struct clockdomain neon_clkdm = { .name = "neon_clkdm", - .pwrdm_name = "neon_pwrdm", + .pwrdm = { .name = "neon_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .clktrctrl_mask = OMAP3430_CLKTRCTRL_NEON_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430), @@ -146,7 +146,7 @@ static struct clockdomain neon_clkdm = { static struct clockdomain iva2_clkdm = { .name = "iva2_clkdm", - .pwrdm_name = "iva2_pwrdm", + .pwrdm = { .name = "iva2_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .clktrctrl_mask = OMAP3430_CLKTRCTRL_IVA2_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430), @@ -154,7 +154,7 @@ static struct clockdomain iva2_clkdm = { static struct clockdomain gfx_3430es1_clkdm = { .name = "gfx_clkdm", - .pwrdm_name = "gfx_pwrdm", + .pwrdm = { .name = "gfx_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_GFX_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430ES1), @@ -162,7 +162,7 @@ static struct clockdomain gfx_3430es1_clkdm = { static struct clockdomain sgx_clkdm = { .name = "sgx_clkdm", - .pwrdm_name = "sgx_pwrdm", + .pwrdm = { .name = "sgx_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_SGX_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430ES2), @@ -177,7 +177,7 @@ static struct clockdomain sgx_clkdm = { */ static struct clockdomain d2d_clkdm = { .name = "d2d_clkdm", - .pwrdm_name = "core_pwrdm", + .pwrdm = { .name = "core_pwrdm" }, .flags = CLKDM_CAN_HWSUP, .clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_D2D_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430), @@ -185,7 +185,7 @@ static struct clockdomain d2d_clkdm = { static struct clockdomain core_l3_34xx_clkdm = { .name = "core_l3_clkdm", - .pwrdm_name = "core_pwrdm", + .pwrdm = { .name = "core_pwrdm" }, .flags = CLKDM_CAN_HWSUP, .clktrctrl_mask = OMAP3430_CLKTRCTRL_L3_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430), @@ -193,7 +193,7 @@ static struct clockdomain core_l3_34xx_clkdm = { static struct clockdomain core_l4_34xx_clkdm = { .name = "core_l4_clkdm", - .pwrdm_name = "core_pwrdm", + .pwrdm = { .name = "core_pwrdm" }, .flags = CLKDM_CAN_HWSUP, .clktrctrl_mask = OMAP3430_CLKTRCTRL_L4_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430), @@ -201,7 +201,7 @@ static struct clockdomain core_l4_34xx_clkdm = { static struct clockdomain dss_34xx_clkdm = { .name = "dss_clkdm", - .pwrdm_name = "dss_pwrdm", + .pwrdm = { .name = "dss_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .clktrctrl_mask = OMAP3430_CLKTRCTRL_DSS_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430), @@ -209,7 +209,7 @@ static struct clockdomain dss_34xx_clkdm = { static struct clockdomain cam_clkdm = { .name = "cam_clkdm", - .pwrdm_name = "cam_pwrdm", + .pwrdm = { .name = "cam_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .clktrctrl_mask = OMAP3430_CLKTRCTRL_CAM_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430), @@ -217,7 +217,7 @@ static struct clockdomain cam_clkdm = { static struct clockdomain usbhost_clkdm = { .name = "usbhost_clkdm", - .pwrdm_name = "usbhost_pwrdm", + .pwrdm = { .name = "usbhost_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_USBHOST_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430ES2), @@ -225,7 +225,7 @@ static struct clockdomain usbhost_clkdm = { static struct clockdomain per_clkdm = { .name = "per_clkdm", - .pwrdm_name = "per_pwrdm", + .pwrdm = { .name = "per_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .clktrctrl_mask = OMAP3430_CLKTRCTRL_PER_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430), @@ -233,7 +233,7 @@ static struct clockdomain per_clkdm = { static struct clockdomain emu_clkdm = { .name = "emu_clkdm", - .pwrdm_name = "emu_pwrdm", + .pwrdm = { .name = "emu_pwrdm" }, .flags = CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_SWSUP, .clktrctrl_mask = OMAP3430_CLKTRCTRL_EMU_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430), @@ -247,14 +247,16 @@ static struct clockdomain emu_clkdm = { static struct clkdm_pwrdm_autodep clkdm_pwrdm_autodeps[] = { { - .pwrdm_name = "mpu_pwrdm", + .pwrdm = { .name = "mpu_pwrdm" }, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430) }, { - .pwrdm_name = "iva2_pwrdm", + .pwrdm = { .name = "iva2_pwrdm" }, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430) }, - { NULL } + { + .pwrdm = { .name = NULL }, + } }; /* diff --git a/include/asm-arm/arch-omap/clockdomain.h b/include/asm-arm/arch-omap/clockdomain.h index d2a4551c9ff..b58bb73b589 100644 --- a/include/asm-arm/arch-omap/clockdomain.h +++ b/include/asm-arm/arch-omap/clockdomain.h @@ -48,11 +48,13 @@ */ struct clkdm_pwrdm_autodep { - /* Name of the powerdomain to add a wkdep/sleepdep on */ - const char *pwrdm_name; + union { + /* Name of the powerdomain to add a wkdep/sleepdep on */ + const char *name; - /* Powerdomain pointer (looked up at clkdm_init() time) */ - struct powerdomain *pwrdm; + /* Powerdomain pointer (looked up at clkdm_init() time) */ + struct powerdomain *ptr; + } pwrdm; /* OMAP chip types that this clockdomain dep is valid on */ const struct omap_chip_id omap_chip; @@ -64,8 +66,13 @@ struct clockdomain { /* Clockdomain name */ const char *name; - /* Powerdomain enclosing this clockdomain */ - const char *pwrdm_name; + union { + /* Powerdomain enclosing this clockdomain */ + const char *name; + + /* Powerdomain pointer assigned at clkdm_register() */ + struct powerdomain *ptr; + } pwrdm; /* CLKTRCTRL/AUTOSTATE field mask in CM_CLKSTCTRL reg */ const u16 clktrctrl_mask; @@ -79,9 +86,6 @@ struct clockdomain { /* Usecount tracking */ atomic_t usecount; - /* Powerdomain pointer assigned at clkdm_register() */ - struct powerdomain *pwrdm; - struct list_head node; };