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Message-Id: <20190124174728.28812-2-tbogendoerfer@suse.de>
Date: Thu, 24 Jan 2019 18:47:22 +0100
From: Thomas Bogendoerfer <tbogendoerfer@...e.de>
To: Bjorn Helgaas <bhelgaas@...gle.com>,
James Hogan <jhogan@...nel.org>, linux-kernel@...r.kernel.org,
linux-mips@...r.kernel.org, linux-pci@...r.kernel.org,
Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
Paul Burton <paul.burton@...s.com>,
Ralf Baechle <ralf@...ux-mips.org>
Subject: [PATCH 1/7] MIPS: SGI-IP27: get rid of volatile and hubreg_t
Replace hub register access with __raw_readq/__raw_writeq and get
rid of hubreg_t completely. Also remove no longer (probably never)
used defines
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@...e.de>
---
arch/mips/include/asm/sn/addrs.h | 63 +++-------------------------------------
arch/mips/include/asm/sn/arch.h | 2 --
arch/mips/sgi-ip27/ip27-hubio.c | 2 +-
arch/mips/sgi-ip27/ip27-init.c | 2 +-
arch/mips/sgi-ip27/ip27-irq.c | 4 +--
arch/mips/sgi-ip27/ip27-memory.c | 6 ++--
arch/mips/sgi-ip27/ip27-nmi.c | 2 +-
7 files changed, 12 insertions(+), 69 deletions(-)
diff --git a/arch/mips/include/asm/sn/addrs.h b/arch/mips/include/asm/sn/addrs.h
index 66814f8ba8e8..3eb81e30a568 100644
--- a/arch/mips/include/asm/sn/addrs.h
+++ b/arch/mips/include/asm/sn/addrs.h
@@ -27,16 +27,11 @@
#ifndef __ASSEMBLY__
-#define PS_UINT_CAST (unsigned long)
#define UINT64_CAST (unsigned long)
-#define HUBREG_CAST (volatile hubreg_t *)
-
#else /* __ASSEMBLY__ */
-#define PS_UINT_CAST
#define UINT64_CAST
-#define HUBREG_CAST
#endif /* __ASSEMBLY__ */
@@ -256,42 +251,22 @@
* Otherwise, the recommended approach is to use *_HUB_L() and *_HUB_S().
* They're always safe.
*/
-#define LOCAL_HUB_ADDR(_x) (HUBREG_CAST (IALIAS_BASE + (_x)))
-#define REMOTE_HUB_ADDR(_n, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \
- 0x800000 + (_x)))
-#ifdef CONFIG_SGI_IP27
-#define REMOTE_HUB_PI_ADDR(_n, _sn, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \
- 0x800000 + (_x)))
-#endif /* CONFIG_SGI_IP27 */
+#define LOCAL_HUB_ADDR(_x) (IALIAS_BASE + (_x))
+#define REMOTE_HUB_ADDR(_n, _x) ((NODE_SWIN_BASE(_n, 1) + 0x800000 + (_x)))
#ifndef __ASSEMBLY__
-#define HUB_L(_a) *(_a)
-#define HUB_S(_a, _d) *(_a) = (_d)
+#define HUB_L(_a) __raw_readq((u64 *)(_a))
+#define HUB_S(_a, _d) __raw_writeq((_d), (u64 *)(_a))
#define LOCAL_HUB_L(_r) HUB_L(LOCAL_HUB_ADDR(_r))
#define LOCAL_HUB_S(_r, _d) HUB_S(LOCAL_HUB_ADDR(_r), (_d))
#define REMOTE_HUB_L(_n, _r) HUB_L(REMOTE_HUB_ADDR((_n), (_r)))
#define REMOTE_HUB_S(_n, _r, _d) HUB_S(REMOTE_HUB_ADDR((_n), (_r)), (_d))
-#define REMOTE_HUB_PI_L(_n, _sn, _r) HUB_L(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)))
-#define REMOTE_HUB_PI_S(_n, _sn, _r, _d) HUB_S(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)), (_d))
#endif /* !__ASSEMBLY__ */
/*
- * The following macros are used to get to a hub/bridge register, given
- * the base of the register space.
- */
-#define HUB_REG_PTR(_base, _off) \
- (HUBREG_CAST((__psunsigned_t)(_base) + (__psunsigned_t)(_off)))
-
-#define HUB_REG_PTR_L(_base, _off) \
- HUB_L(HUB_REG_PTR((_base), (_off)))
-
-#define HUB_REG_PTR_S(_base, _off, _data) \
- HUB_S(HUB_REG_PTR((_base), (_off)), (_data))
-
-/*
* Software structure locations -- permanently fixed
* See diagram in kldir.h
*/
@@ -387,44 +362,14 @@
#define SYMMON_STK_END(nasid) (SYMMON_STK_ADDR(nasid, 0) + KLD_SYMMON_STK(nasid)->size)
-/* loading symmon 4k below UNIX. the arcs loader needs the topaddr for a
- * relocatable program
- */
-#define UNIX_DEBUG_LOADADDR 0x300000
-#define SYMMON_LOADADDR(nasid) \
- TO_NODE(nasid, PHYS_TO_K0(UNIX_DEBUG_LOADADDR - 0x1000))
-
-#define FREEMEM_OFFSET(nasid) KLD_FREEMEM(nasid)->offset
-#define FREEMEM_ADDR(nasid) SYMMON_STK_END(nasid)
-/*
- * XXX
- * Fix this. FREEMEM_ADDR should be aware of if symmon is loaded.
- * Also, it should take into account what prom thinks to be a safe
- * address
- PHYS_TO_K0(NODE_OFFSET(nasid) + FREEMEM_OFFSET(nasid))
- */
-#define FREEMEM_SIZE(nasid) KLD_FREEMEM(nasid)->size
-
-#define PI_ERROR_OFFSET(nasid) KLD_PI_ERROR(nasid)->offset
-#define PI_ERROR_ADDR(nasid) \
- TO_NODE_UNCAC((nasid), PI_ERROR_OFFSET(nasid))
-#define PI_ERROR_SIZE(nasid) KLD_PI_ERROR(nasid)->size
-
#define NODE_OFFSET_TO_K0(_nasid, _off) \
PHYS_TO_K0((NODE_OFFSET(_nasid) + (_off)) | CAC_BASE)
#define NODE_OFFSET_TO_K1(_nasid, _off) \
TO_UNCAC((NODE_OFFSET(_nasid) + (_off)) | UNCAC_BASE)
-#define K0_TO_NODE_OFFSET(_k0addr) \
- ((__psunsigned_t)(_k0addr) & NODE_ADDRSPACE_MASK)
#define KERN_VARS_ADDR(nasid) KLD_KERN_VARS(nasid)->pointer
#define KERN_VARS_SIZE(nasid) KLD_KERN_VARS(nasid)->size
-#define KERN_XP_ADDR(nasid) KLD_KERN_XP(nasid)->pointer
-#define KERN_XP_SIZE(nasid) KLD_KERN_XP(nasid)->size
-
-#define GPDA_ADDR(nasid) TO_NODE_CAC(nasid, GPDA_OFFSET)
-
#endif /* !__ASSEMBLY__ */
diff --git a/arch/mips/include/asm/sn/arch.h b/arch/mips/include/asm/sn/arch.h
index 471e6870d876..3f1fb1454749 100644
--- a/arch/mips/include/asm/sn/arch.h
+++ b/arch/mips/include/asm/sn/arch.h
@@ -17,8 +17,6 @@
#include <asm/sn/sn0/arch.h>
#endif
-typedef u64 hubreg_t;
-
#define cputonasid(cpu) (sn_cpu_info[(cpu)].p_nasid)
#define cputoslice(cpu) (sn_cpu_info[(cpu)].p_slice)
#define makespnum(_nasid, _slice) \
diff --git a/arch/mips/sgi-ip27/ip27-hubio.c b/arch/mips/sgi-ip27/ip27-hubio.c
index 2abe016a0ffc..9b4fd7773423 100644
--- a/arch/mips/sgi-ip27/ip27-hubio.c
+++ b/arch/mips/sgi-ip27/ip27-hubio.c
@@ -135,7 +135,7 @@ static void hub_setup_prb(nasid_t nasid, int prbnum, int credits)
**/
static void hub_set_piomode(nasid_t nasid)
{
- hubreg_t ii_iowa;
+ u64 ii_iowa;
hubii_wcr_t ii_wcr;
unsigned i;
diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c
index e501c43c02db..83399e578b61 100644
--- a/arch/mips/sgi-ip27/ip27-init.c
+++ b/arch/mips/sgi-ip27/ip27-init.c
@@ -177,7 +177,7 @@ extern void ip27_reboot_setup(void);
void __init plat_mem_setup(void)
{
- hubreg_t p, e, n_mode;
+ u64 p, e, n_mode;
nasid_t nid;
ip27_reboot_setup();
diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c
index 0dde6164a06f..f37155ef7ed9 100644
--- a/arch/mips/sgi-ip27/ip27-irq.c
+++ b/arch/mips/sgi-ip27/ip27-irq.c
@@ -85,7 +85,7 @@ static int ms1bit(unsigned long x)
static void ip27_do_irq_mask0(void)
{
int irq, swlevel;
- hubreg_t pend0, mask0;
+ u64 pend0, mask0;
cpuid_t cpu = smp_processor_id();
int pi_int_mask0 =
(cputoslice(cpu) == 0) ? PI_INT_MASK0_A : PI_INT_MASK0_B;
@@ -132,7 +132,7 @@ static void ip27_do_irq_mask0(void)
static void ip27_do_irq_mask1(void)
{
int irq, swlevel;
- hubreg_t pend1, mask1;
+ u64 pend1, mask1;
cpuid_t cpu = smp_processor_id();
int pi_int_mask1 = (cputoslice(cpu) == 0) ? PI_INT_MASK1_A : PI_INT_MASK1_B;
struct slice_data *si = cpu_data[cpu].data;
diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c
index 813d13f92957..87ef4181934e 100644
--- a/arch/mips/sgi-ip27/ip27-memory.c
+++ b/arch/mips/sgi-ip27/ip27-memory.c
@@ -44,7 +44,7 @@ static int is_fine_dirmode(void)
return ((LOCAL_HUB_L(NI_STATUS_REV_ID) & NSRI_REGIONSIZE_MASK) >> NSRI_REGIONSIZE_SHFT) & REGIONSIZE_FINE;
}
-static hubreg_t get_region(cnodeid_t cnode)
+static u64 get_region(cnodeid_t cnode)
{
if (fine_mode)
return COMPACT_TO_NASID_NODEID(cnode) >> NASID_TO_FINEREG_SHFT;
@@ -52,9 +52,9 @@ static hubreg_t get_region(cnodeid_t cnode)
return COMPACT_TO_NASID_NODEID(cnode) >> NASID_TO_COARSEREG_SHFT;
}
-static hubreg_t region_mask;
+static u64 region_mask;
-static void gen_region_mask(hubreg_t *region_mask)
+static void gen_region_mask(u64 *region_mask)
{
cnodeid_t cnode;
diff --git a/arch/mips/sgi-ip27/ip27-nmi.c b/arch/mips/sgi-ip27/ip27-nmi.c
index 8ac2bfa35fb6..8cb3a5d6d7d1 100644
--- a/arch/mips/sgi-ip27/ip27-nmi.c
+++ b/arch/mips/sgi-ip27/ip27-nmi.c
@@ -130,7 +130,7 @@ void nmi_cpu_eframe_save(nasid_t nasid, int slice)
void nmi_dump_hub_irq(nasid_t nasid, int slice)
{
- hubreg_t mask0, mask1, pend0, pend1;
+ u64 mask0, mask1, pend0, pend1;
if (slice == 0) { /* Slice A */
mask0 = REMOTE_HUB_L(nasid, PI_INT_MASK0_A);
--
2.13.7
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