Merge git://git.denx.de/u-boot-x86

6 files changed, 112 insertions, 148 deletions

diff --git a/arch/x86/include/asm/arch-ivybridge/microcode.h b/arch/x86/include/asm/arch-ivybridge/microcode.h
index bc9b87c..b868283 100644
--- a/arch/x86/include/asm/arch-ivybridge/microcode.h
+++ b/arch/x86/include/asm/arch-ivybridge/microcode.h
@@ -7,6 +7,11 @@
 #ifndef __ASM_ARCH_MICROCODE_H
 #define __ASM_ARCH_MICROCODE_H
 
+/* Length of the public header on Intel microcode blobs */
+#define UCODE_HEADER_LEN	0x30
+
+#ifndef __ASSEMBLY__
+
 /**
  * microcode_update_intel() - Apply microcode updates
  *
@@ -16,5 +21,6 @@
  * not updates were found, -EINVAL if an update was invalid
  */
 int microcode_update_intel(void);
+#endif /* __ASSEMBLY__ */
 
 #endif
diff --git a/arch/x86/include/asm/arch-queensbay/fsp/fsp_hob.h b/arch/x86/include/asm/arch-queensbay/fsp/fsp_hob.h
index 380b64e..6cca7f5 100644
--- a/arch/x86/include/asm/arch-queensbay/fsp/fsp_hob.h
+++ b/arch/x86/include/asm/arch-queensbay/fsp/fsp_hob.h
@@ -182,58 +182,19 @@ struct hob_guid {
 	/* GUID specific data goes here */
 };
 
-/* Union of all the possible HOB Types */
-union hob_pointers {
-	struct hob_header	*hdr;
-	struct hob_mem_alloc	*mem_alloc;
-	struct hob_res_desc	*res_desc;
-	struct hob_guid		*guid;
-	u8			*raw;
-};
-
-/**
- * get_hob_type() - return the type of a HOB
- *
- * This macro returns the type field from the HOB header for the
- * HOB specified by hob.
- *
- * @hob:    A pointer to a HOB.
- *
- * @return: HOB type.
- */
-static inline u16 get_hob_type(union hob_pointers hob)
-{
-	return hob.hdr->type;
-}
-
-/**
- * get_hob_length() - return the length, in bytes, of a HOB
- *
- * This macro returns the len field from the HOB header for the
- * HOB specified by hob.
- *
- * @hob:    A pointer to a HOB.
- *
- * @return: HOB length.
- */
-static inline u16 get_hob_length(union hob_pointers hob)
-{
-	return hob.hdr->len;
-}
-
 /**
  * get_next_hob() - return a pointer to the next HOB in the HOB list
  *
  * This macro returns a pointer to HOB that follows the HOB specified by hob
  * in the HOB List.
  *
- * @hob:    A pointer to a HOB.
+ * @hdr:    A pointer to a HOB.
  *
  * @return: A pointer to the next HOB in the HOB list.
  */
-static inline void *get_next_hob(union hob_pointers hob)
+static inline const struct hob_header *get_next_hob(const struct hob_header *hdr)
 {
-	return (void *)(*(u8 **)&(hob) + get_hob_length(hob));
+	return (const struct hob_header *)((u32)hdr + hdr->len);
 }
 
 /**
@@ -243,14 +204,14 @@ static inline void *get_next_hob(union hob_pointers hob)
  * HOB list.  If hob is last HOB in the HOB list, then true is returned.
  * Otherwise, false is returned.
  *
- * @hob:          A pointer to a HOB.
+ * @hdr:          A pointer to a HOB.
  *
- * @retval true:  The HOB specified by hob is the last HOB in the HOB list.
- * @retval false: The HOB specified by hob is not the last HOB in the HOB list.
+ * @retval true:  The HOB specified by hdr is the last HOB in the HOB list.
+ * @retval false: The HOB specified by hdr is not the last HOB in the HOB list.
  */
-static inline bool end_of_hob(union hob_pointers hob)
+static inline bool end_of_hob(const struct hob_header *hdr)
 {
-	return get_hob_type(hob) == HOB_TYPE_EOH;
+	return hdr->type == HOB_TYPE_EOH;
 }
 
 /**
@@ -260,13 +221,13 @@ static inline bool end_of_hob(union hob_pointers hob)
  * This macro returns a pointer to the data buffer in a HOB specified by hob.
  * hob is assumed to be a HOB of type HOB_TYPE_GUID_EXT.
  *
- * @hob:    A pointer to a HOB.
+ * @hdr:    A pointer to a HOB.
  *
  * @return: A pointer to the data buffer in a HOB.
  */
-static inline void *get_guid_hob_data(u8 *hob)
+static inline void *get_guid_hob_data(const struct hob_header *hdr)
 {
-	return (void *)(hob + sizeof(struct hob_guid));
+	return (void *)((u32)hdr + sizeof(struct hob_guid));
 }
 
 /**
@@ -276,14 +237,13 @@ static inline void *get_guid_hob_data(u8 *hob)
  * This macro returns the size, in bytes, of the data buffer in a HOB
  * specified by hob. hob is assumed to be a HOB of type HOB_TYPE_GUID_EXT.
  *
- * @hob:    A pointer to a HOB.
+ * @hdr:    A pointer to a HOB.
  *
  * @return: The size of the data buffer.
  */
-static inline u16 get_guid_hob_data_size(u8 *hob)
+static inline u16 get_guid_hob_data_size(const struct hob_header *hdr)
 {
-	union hob_pointers hob_p = *(union hob_pointers *)hob;
-	return get_hob_length(hob_p) - sizeof(struct hob_guid);
+	return hdr->len - sizeof(struct hob_guid);
 }
 
 /* FSP specific GUID HOB definitions */
diff --git a/arch/x86/include/asm/arch-queensbay/fsp/fsp_support.h b/arch/x86/include/asm/arch-queensbay/fsp/fsp_support.h
index 3ae1b66..ebdbd03 100644
--- a/arch/x86/include/asm/arch-queensbay/fsp/fsp_support.h
+++ b/arch/x86/include/asm/arch-queensbay/fsp/fsp_support.h
@@ -145,7 +145,7 @@ u32 fsp_get_tseg_reserved_mem(const void *hob_list, u32 *len);
  *
  * @retval:   A HOB object with matching type; Otherwise NULL.
  */
-void *fsp_get_next_hob(u16 type, const void *hob_list);
+const struct hob_header *fsp_get_next_hob(uint type, const void *hob_list);
 
 /**
  * Returns the next instance of the matched GUID HOB from the starting HOB.
@@ -155,7 +155,8 @@ void *fsp_get_next_hob(u16 type, const void *hob_list);
  *
  * @retval:   A HOB object with matching GUID; Otherwise NULL.
  */
-void *fsp_get_next_guid_hob(const struct efi_guid *guid, const void *hob_list);
+const struct hob_header *fsp_get_next_guid_hob(const struct efi_guid *guid,
+					       const void *hob_list);
 
 /**
  * This function retrieves a GUID HOB data buffer and size.
diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h
index 03d491a..24e3052 100644
--- a/arch/x86/include/asm/global_data.h
+++ b/arch/x86/include/asm/global_data.h
@@ -29,6 +29,19 @@ struct memory_info {
 	struct memory_area area[CONFIG_NR_DRAM_BANKS];
 };
 
+#define MAX_MTRR_REQUESTS	8
+
+/**
+ * A request for a memory region to be set up in a particular way. These
+ * requests are processed before board_init_r() is called. They are generally
+ * optional and can be ignored with some performance impact.
+ */
+struct mtrr_request {
+	int type;		/* MTRR_TYPE_... */
+	uint64_t start;
+	uint64_t size;
+};
+
 /* Architecture-specific global data */
 struct arch_global_data {
 	struct global_data *gd_addr;		/* Location of Global Data */
@@ -43,13 +56,14 @@ struct arch_global_data {
 	uint32_t tsc_mhz;		/* TSC frequency in MHz */
 	void *new_fdt;			/* Relocated FDT */
 	uint32_t bist;			/* Built-in self test value */
-	struct pci_controller *hose;	/* PCI hose for early use */
 	enum pei_boot_mode_t pei_boot_mode;
 	const struct pch_gpio_map *gpio_map;	/* board GPIO map */
 	struct memory_info meminfo;	/* Memory information */
 #ifdef CONFIG_HAVE_FSP
 	void	*hob_list;		/* FSP HOB list */
 #endif
+	struct mtrr_request mtrr_req[MAX_MTRR_REQUESTS];
+	int mtrr_req_count;
 };
 
 #endif
diff --git a/arch/x86/include/asm/mtrr.h b/arch/x86/include/asm/mtrr.h
index 5f05a48..3c11740 100644
--- a/arch/x86/include/asm/mtrr.h
+++ b/arch/x86/include/asm/mtrr.h
@@ -9,99 +9,86 @@
 #ifndef _ASM_MTRR_H
 #define _ASM_MTRR_H
 
-/*  These are the region types  */
-#define MTRR_TYPE_UNCACHEABLE 0
-#define MTRR_TYPE_WRCOMB     1
-/*#define MTRR_TYPE_         2*/
-/*#define MTRR_TYPE_         3*/
-#define MTRR_TYPE_WRTHROUGH  4
-#define MTRR_TYPE_WRPROT     5
-#define MTRR_TYPE_WRBACK     6
-#define MTRR_NUM_TYPES       7
-
-#define MTRRcap_MSR     0x0fe
-#define MTRRdefType_MSR 0x2ff
-
-#define MTRRdefTypeEn		(1 << 11)
-#define MTRRdefTypeFixEn	(1 << 10)
-
-#define SMRRphysBase_MSR 0x1f2
-#define SMRRphysMask_MSR 0x1f3
-
-#define MTRRphysBase_MSR(reg) (0x200 + 2 * (reg))
-#define MTRRphysMask_MSR(reg) (0x200 + 2 * (reg) + 1)
-
-#define MTRRphysMaskValid	(1 << 11)
-
-#define NUM_FIXED_RANGES 88
-#define RANGES_PER_FIXED_MTRR 8
-#define MTRRfix64K_00000_MSR 0x250
-#define MTRRfix16K_80000_MSR 0x258
-#define MTRRfix16K_A0000_MSR 0x259
-#define MTRRfix4K_C0000_MSR 0x268
-#define MTRRfix4K_C8000_MSR 0x269
-#define MTRRfix4K_D0000_MSR 0x26a
-#define MTRRfix4K_D8000_MSR 0x26b
-#define MTRRfix4K_E0000_MSR 0x26c
-#define MTRRfix4K_E8000_MSR 0x26d
-#define MTRRfix4K_F0000_MSR 0x26e
-#define MTRRfix4K_F8000_MSR 0x26f
+/* MTRR region types */
+#define MTRR_TYPE_UNCACHEABLE	0
+#define MTRR_TYPE_WRCOMB	1
+#define MTRR_TYPE_WRTHROUGH	4
+#define MTRR_TYPE_WRPROT	5
+#define MTRR_TYPE_WRBACK	6
+
+#define MTRR_TYPE_COUNT		7
+
+#define MTRR_CAP_MSR		0x0fe
+#define MTRR_DEF_TYPE_MSR	0x2ff
+
+#define MTRR_DEF_TYPE_EN	(1 << 11)
+#define MTRR_DEF_TYPE_FIX_EN	(1 << 10)
+
+#define MTRR_PHYS_BASE_MSR(reg)	(0x200 + 2 * (reg))
+#define MTRR_PHYS_MASK_MSR(reg)	(0x200 + 2 * (reg) + 1)
+
+#define MTRR_PHYS_MASK_VALID	(1 << 11)
+
+#define MTRR_BASE_TYPE_MASK	0x7
+
+/* Number of MTRRs supported */
+#define MTRR_COUNT		8
 
 #if !defined(__ASSEMBLER__)
 
-/*
- * The MTRR code has some side effects that the callers should be aware for.
- * 1. The call sequence matters. x86_setup_mtrrs() calls
- *    x86_setup_fixed_mtrrs_no_enable() then enable_fixed_mtrrs() (equivalent
- *    of x86_setup_fixed_mtrrs()) then x86_setup_var_mtrrs(). If the callers
- *    want to call the components of x86_setup_mtrrs() because of other
- *    rquirements the ordering should still preserved.
- * 2. enable_fixed_mtrr() will enable both variable and fixed MTRRs because
- *    of the nature of the global MTRR enable flag. Therefore, all direct
- *    or indirect callers of enable_fixed_mtrr() should ensure that the
- *    variable MTRR MSRs do not contain bad ranges.
- * 3. If CONFIG_CACHE_ROM is selected an MTRR is allocated for enabling
- *    the caching of the ROM. However, it is set to uncacheable (UC). It
- *    is the responsiblity of the caller to enable it by calling
- *    x86_mtrr_enable_rom_caching().
+/**
+ * Information about the previous MTRR state, set up by mtrr_open()
+ *
+ * @deftype:		Previous value of MTRR_DEF_TYPE_MSR
+ * @enable_cache:	true if cache was enabled
  */
-void x86_setup_mtrrs(void);
-/*
- * x86_setup_var_mtrrs() parameters:
- * address_bits - number of physical address bits supported by cpu
- * above4gb - 2 means dynamically detect number of variable MTRRs available.
- *            non-zero means handle memory ranges above 4GiB.
- *            0 means ignore memory ranges above 4GiB
+struct mtrr_state {
+	uint64_t deftype;
+	bool enable_cache;
+};
+
+/**
+ * mtrr_open() - Prepare to adjust MTRRs
+ *
+ * Use mtrr_open() passing in a structure - this function will init it. Then
+ * when done, pass the same structure to mtrr_close() to re-enable MTRRs and
+ * possibly the cache.
+ *
+ * @state:	Empty structure to pass in to hold settings
  */
-void x86_setup_var_mtrrs(unsigned int address_bits, unsigned int above4gb);
-void enable_fixed_mtrr(void);
-void x86_setup_fixed_mtrrs(void);
-/* Set up fixed MTRRs but do not enable them. */
-void x86_setup_fixed_mtrrs_no_enable(void);
-int x86_mtrr_check(void);
-/* ROM caching can be used after variable MTRRs are set up. Beware that
- * enabling CONFIG_CACHE_ROM will eat through quite a few MTRRs based on
- * one's IO hole size and WRCOMB resources. Be sure to check the console
- * log when enabling CONFIG_CACHE_ROM or adding WRCOMB resources. Beware that
- * on CPUs with core-scoped MTRR registers such as hyperthreaded CPUs the
- * rom caching will be disabled if all threads run the MTRR code. Therefore,
- * one needs to call x86_mtrr_enable_rom_caching() after all threads of the
- * same core have run the MTRR code. */
-#if CONFIG_CACHE_ROM
-void x86_mtrr_enable_rom_caching(void);
-void x86_mtrr_disable_rom_caching(void);
-/* Return the variable range MTRR index of the ROM cache. */
-long x86_mtrr_rom_cache_var_index(void);
-#else
-static inline void x86_mtrr_enable_rom_caching(void) {}
-static inline void x86_mtrr_disable_rom_caching(void) {}
-static inline long x86_mtrr_rom_cache_var_index(void) { return -1; }
-#endif /* CONFIG_CACHE_ROM */
+void mtrr_open(struct mtrr_state *state);
 
-#endif
+/**
+ * mtrr_open() - Clean up after adjusting MTRRs, and enable them
+ *
+ * This uses the structure containing information returned from mtrr_open().
+ *
+ * @state:	Structure from mtrr_open()
+ */
+/*  */
+void mtrr_close(struct mtrr_state *state);
+
+/**
+ * mtrr_add_request() - Add a new MTRR request
+ *
+ * This adds a request for a memory region to be set up in a particular way.
+ *
+ * @type:	Requested type (MTRR_TYPE_)
+ * @start:	Start address
+ * @size:	Size
+ */
+int mtrr_add_request(int type, uint64_t start, uint64_t size);
+
+/**
+ * mtrr_commit() - set up the MTRR registers based on current requests
+ *
+ * This sets up MTRRs for the available DRAM and the requests received so far.
+ * It must be called with caches disabled.
+ *
+ * @do_caches:	true if caches are currently on
+ */
+int mtrr_commit(bool do_caches);
 
-#if !defined(CONFIG_RAMTOP)
-# error "CONFIG_RAMTOP not defined"
 #endif
 
 #if ((CONFIG_XIP_ROM_SIZE & (CONFIG_XIP_ROM_SIZE - 1)) != 0)
@@ -114,8 +101,4 @@ static inline long x86_mtrr_rom_cache_var_index(void) { return -1; }
 
 #define CACHE_ROM_BASE	(((1 << 20) - (CONFIG_CACHE_ROM_SIZE >> 12)) << 12)
 
-#if (CONFIG_RAMTOP & (CONFIG_RAMTOP - 1)) != 0
-# error "CONFIG_RAMTOP must be a power of 2"
-#endif
-
 #endif
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index ac1a808..c30dd4c 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -29,7 +29,7 @@ void board_pci_setup_hose(struct pci_controller *hose);
  * pci_early_init_hose() - Set up PCI host before relocation
  *
  * This allocates memory for, sets up and returns the PCI hose. It can be
- * called before relocation. The hose will be stored in gd->arch.hose for
+ * called before relocation. The hose will be stored in gd->hose for
  * later use, but will become invalid one DRAM is available.
  */
 int pci_early_init_hose(struct pci_controller **hosep);