diff options
Diffstat (limited to 'drivers/firmware')
21 files changed, 92 insertions, 359 deletions
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index aadc395ee168..7df19d82aa68 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -31,7 +31,6 @@ config ARM_SCPI_PROTOCOL config ARM_SDE_INTERFACE bool "ARM Software Delegated Exception Interface (SDEI)" depends on ARM64 - depends on ACPI_APEI_GHES help The Software Delegated Exception Interface (SDEI) is an ARM standard for registering callbacks from the platform firmware diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c index 19295282de24..fe55613a8ea9 100644 --- a/drivers/firmware/arm_ffa/driver.c +++ b/drivers/firmware/arm_ffa/driver.c @@ -299,7 +299,8 @@ __ffa_partition_info_get(u32 uuid0, u32 uuid1, u32 uuid2, u32 uuid3, import_uuid(&buf->uuid, (u8 *)&rx_buf->uuid); } - ffa_rx_release(); + if (!(flags & PARTITION_INFO_GET_RETURN_COUNT_ONLY)) + ffa_rx_release(); mutex_unlock(&drv_info->rx_lock); diff --git a/drivers/firmware/arm_scmi/bus.c b/drivers/firmware/arm_scmi/bus.c index 7af01664ce7e..3a5474015f7d 100644 --- a/drivers/firmware/arm_scmi/bus.c +++ b/drivers/firmware/arm_scmi/bus.c @@ -255,6 +255,9 @@ static struct scmi_device *scmi_child_dev_find(struct device *parent, if (!dev) return NULL; + /* Drop the refcnt bumped implicitly by device_find_child */ + put_device(dev); + return to_scmi_dev(dev); } diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index 1c75a4c9c371..0390d5ff195e 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -1248,7 +1248,8 @@ static void xfer_put(const struct scmi_protocol_handle *ph, } static bool scmi_xfer_done_no_timeout(struct scmi_chan_info *cinfo, - struct scmi_xfer *xfer, ktime_t stop) + struct scmi_xfer *xfer, ktime_t stop, + bool *ooo) { struct scmi_info *info = handle_to_scmi_info(cinfo->handle); @@ -1257,7 +1258,7 @@ static bool scmi_xfer_done_no_timeout(struct scmi_chan_info *cinfo, * in case of out-of-order receptions of delayed responses */ return info->desc->ops->poll_done(cinfo, xfer) || - try_wait_for_completion(&xfer->done) || + (*ooo = try_wait_for_completion(&xfer->done)) || ktime_after(ktime_get(), stop); } @@ -1274,15 +1275,17 @@ static int scmi_wait_for_reply(struct device *dev, const struct scmi_desc *desc, * itself to support synchronous commands replies. */ if (!desc->sync_cmds_completed_on_ret) { + bool ooo = false; + /* * Poll on xfer using transport provided .poll_done(); * assumes no completion interrupt was available. */ ktime_t stop = ktime_add_ms(ktime_get(), timeout_ms); - spin_until_cond(scmi_xfer_done_no_timeout(cinfo, - xfer, stop)); - if (ktime_after(ktime_get(), stop)) { + spin_until_cond(scmi_xfer_done_no_timeout(cinfo, xfer, + stop, &ooo)); + if (!ooo && !info->desc->ops->poll_done(cinfo, xfer)) { dev_err(dev, "timed out in resp(caller: %pS) - polling\n", (void *)_RET_IP_); diff --git a/drivers/firmware/arm_sdei.c b/drivers/firmware/arm_sdei.c index 3e8051fe8296..71e2a9a89f6a 100644 --- a/drivers/firmware/arm_sdei.c +++ b/drivers/firmware/arm_sdei.c @@ -1062,13 +1062,12 @@ static bool __init sdei_present_acpi(void) return true; } -void __init sdei_init(void) +void __init acpi_sdei_init(void) { struct platform_device *pdev; int ret; - ret = platform_driver_register(&sdei_driver); - if (ret || !sdei_present_acpi()) + if (!sdei_present_acpi()) return; pdev = platform_device_register_simple(sdei_driver.driver.name, @@ -1081,6 +1080,12 @@ void __init sdei_init(void) } } +static int __init sdei_init(void) +{ + return platform_driver_register(&sdei_driver); +} +arch_initcall(sdei_init); + int sdei_event_handler(struct pt_regs *regs, struct sdei_registered_event *arg) { diff --git a/drivers/firmware/cirrus/Kconfig b/drivers/firmware/cirrus/Kconfig index 0a883091259a..e3c2e38b746d 100644 --- a/drivers/firmware/cirrus/Kconfig +++ b/drivers/firmware/cirrus/Kconfig @@ -6,14 +6,11 @@ config FW_CS_DSP config FW_CS_DSP_KUNIT_TEST_UTILS tristate - depends on KUNIT && REGMAP - select FW_CS_DSP config FW_CS_DSP_KUNIT_TEST tristate "KUnit tests for Cirrus Logic cs_dsp" if !KUNIT_ALL_TESTS - depends on KUNIT && REGMAP + depends on KUNIT && REGMAP && FW_CS_DSP default KUNIT_ALL_TESTS - select FW_CS_DSP select FW_CS_DSP_KUNIT_TEST_UTILS help This builds KUnit tests for cs_dsp. diff --git a/drivers/firmware/cirrus/test/cs_dsp_mock_bin.c b/drivers/firmware/cirrus/test/cs_dsp_mock_bin.c index 49d84f7e59e6..3f8777ee4dc0 100644 --- a/drivers/firmware/cirrus/test/cs_dsp_mock_bin.c +++ b/drivers/firmware/cirrus/test/cs_dsp_mock_bin.c @@ -96,10 +96,11 @@ static void cs_dsp_mock_bin_add_name_or_info(struct cs_dsp_mock_bin_builder *bui if (info_len % 4) { /* Create a padded string with length a multiple of 4 */ + size_t copy_len = info_len; info_len = round_up(info_len, 4); tmp = kunit_kzalloc(builder->test_priv->test, info_len, GFP_KERNEL); KUNIT_ASSERT_NOT_ERR_OR_NULL(builder->test_priv->test, tmp); - memcpy(tmp, info, info_len); + memcpy(tmp, info, copy_len); info = tmp; } @@ -176,6 +177,9 @@ struct cs_dsp_mock_bin_builder *cs_dsp_mock_bin_init(struct cs_dsp_test *priv, struct cs_dsp_mock_bin_builder *builder; struct wmfw_coeff_hdr *hdr; + KUNIT_ASSERT_LE(priv->test, format_version, 0xff); + KUNIT_ASSERT_LE(priv->test, fw_version, 0xffffff); + builder = kunit_kzalloc(priv->test, sizeof(*builder), GFP_KERNEL); KUNIT_ASSERT_NOT_ERR_OR_NULL(priv->test, builder); builder->test_priv = priv; diff --git a/drivers/firmware/cirrus/test/cs_dsp_mock_mem_maps.c b/drivers/firmware/cirrus/test/cs_dsp_mock_mem_maps.c index 161272e47bda..95946fac5563 100644 --- a/drivers/firmware/cirrus/test/cs_dsp_mock_mem_maps.c +++ b/drivers/firmware/cirrus/test/cs_dsp_mock_mem_maps.c @@ -462,36 +462,6 @@ unsigned int cs_dsp_mock_xm_header_get_alg_base_in_words(struct cs_dsp_test *pri EXPORT_SYMBOL_NS_GPL(cs_dsp_mock_xm_header_get_alg_base_in_words, "FW_CS_DSP_KUNIT_TEST_UTILS"); /** - * cs_dsp_mock_xm_header_get_fw_version_from_regmap() - Firmware version. - * - * @priv: Pointer to struct cs_dsp_test. - * - * Return: Firmware version word value. - */ -unsigned int cs_dsp_mock_xm_header_get_fw_version_from_regmap(struct cs_dsp_test *priv) -{ - unsigned int xm = cs_dsp_mock_base_addr_for_mem(priv, WMFW_ADSP2_XM); - union { - struct wmfw_id_hdr adsp2; - struct wmfw_v3_id_hdr halo; - } hdr; - - switch (priv->dsp->type) { - case WMFW_ADSP2: - regmap_raw_read(priv->dsp->regmap, xm, &hdr.adsp2, sizeof(hdr.adsp2)); - return be32_to_cpu(hdr.adsp2.ver); - case WMFW_HALO: - regmap_raw_read(priv->dsp->regmap, xm, &hdr.halo, sizeof(hdr.halo)); - return be32_to_cpu(hdr.halo.ver); - default: - KUNIT_FAIL(priv->test, NULL); - return 0; - } -} -EXPORT_SYMBOL_NS_GPL(cs_dsp_mock_xm_header_get_fw_version_from_regmap, - "FW_CS_DSP_KUNIT_TEST_UTILS"); - -/** * cs_dsp_mock_xm_header_get_fw_version() - Firmware version. * * @header: Pointer to struct cs_dsp_mock_xm_header. @@ -535,9 +505,11 @@ void cs_dsp_mock_xm_header_drop_from_regmap_cache(struct cs_dsp_test *priv) * Could be one 32-bit register or two 16-bit registers. * A raw read will read the requested number of bytes. */ - regmap_raw_read(priv->dsp->regmap, - xm + (offsetof(struct wmfw_adsp2_id_hdr, n_algs) / 2), - &num_algs_be32, sizeof(num_algs_be32)); + KUNIT_ASSERT_GE(priv->test, 0, + regmap_raw_read(priv->dsp->regmap, + xm + + (offsetof(struct wmfw_adsp2_id_hdr, n_algs) / 2), + &num_algs_be32, sizeof(num_algs_be32))); num_algs = be32_to_cpu(num_algs_be32); bytes = sizeof(struct wmfw_adsp2_id_hdr) + (num_algs * sizeof(struct wmfw_adsp2_alg_hdr)) + @@ -546,9 +518,10 @@ void cs_dsp_mock_xm_header_drop_from_regmap_cache(struct cs_dsp_test *priv) regcache_drop_region(priv->dsp->regmap, xm, xm + (bytes / 2) - 1); break; case WMFW_HALO: - regmap_read(priv->dsp->regmap, - xm + offsetof(struct wmfw_halo_id_hdr, n_algs), - &num_algs); + KUNIT_ASSERT_GE(priv->test, 0, + regmap_read(priv->dsp->regmap, + xm + offsetof(struct wmfw_halo_id_hdr, n_algs), + &num_algs)); bytes = sizeof(struct wmfw_halo_id_hdr) + (num_algs * sizeof(struct wmfw_halo_alg_hdr)) + 4 /* terminator word */; diff --git a/drivers/firmware/cirrus/test/cs_dsp_mock_wmfw.c b/drivers/firmware/cirrus/test/cs_dsp_mock_wmfw.c index 5a3ac03ac37f..934d40a4d709 100644 --- a/drivers/firmware/cirrus/test/cs_dsp_mock_wmfw.c +++ b/drivers/firmware/cirrus/test/cs_dsp_mock_wmfw.c @@ -178,6 +178,8 @@ void cs_dsp_mock_wmfw_start_alg_info_block(struct cs_dsp_mock_wmfw_builder *buil size_t bytes_needed, name_len, description_len; int offset; + KUNIT_ASSERT_LE(builder->test_priv->test, alg_id, 0xffffff); + /* Bytes needed for region header */ bytes_needed = offsetof(struct wmfw_region, data); @@ -435,6 +437,8 @@ struct cs_dsp_mock_wmfw_builder *cs_dsp_mock_wmfw_init(struct cs_dsp_test *priv, { struct cs_dsp_mock_wmfw_builder *builder; + KUNIT_ASSERT_LE(priv->test, format_version, 0xff); + /* If format version isn't given use the default for the target core */ if (format_version < 0) { switch (priv->dsp->type) { diff --git a/drivers/firmware/cirrus/test/cs_dsp_test_bin.c b/drivers/firmware/cirrus/test/cs_dsp_test_bin.c index 1e161bbc5b4a..163b7faecff4 100644 --- a/drivers/firmware/cirrus/test/cs_dsp_test_bin.c +++ b/drivers/firmware/cirrus/test/cs_dsp_test_bin.c @@ -2198,7 +2198,7 @@ static int cs_dsp_bin_test_common_init(struct kunit *test, struct cs_dsp *dsp) priv->local->bin_builder = cs_dsp_mock_bin_init(priv, 1, - cs_dsp_mock_xm_header_get_fw_version_from_regmap(priv)); + cs_dsp_mock_xm_header_get_fw_version(xm_hdr)); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->local->bin_builder); /* We must provide a dummy wmfw to load */ diff --git a/drivers/firmware/cirrus/test/cs_dsp_test_bin_error.c b/drivers/firmware/cirrus/test/cs_dsp_test_bin_error.c index 8748874f0552..a7ec956d2724 100644 --- a/drivers/firmware/cirrus/test/cs_dsp_test_bin_error.c +++ b/drivers/firmware/cirrus/test/cs_dsp_test_bin_error.c @@ -451,7 +451,7 @@ static int cs_dsp_bin_err_test_common_init(struct kunit *test, struct cs_dsp *ds local->bin_builder = cs_dsp_mock_bin_init(priv, 1, - cs_dsp_mock_xm_header_get_fw_version_from_regmap(priv)); + cs_dsp_mock_xm_header_get_fw_version(local->xm_header)); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, local->bin_builder); /* Init cs_dsp */ diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index 7309394b8fc9..e57bff702b5f 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -558,6 +558,7 @@ int __efi_mem_desc_lookup(u64 phys_addr, efi_memory_desc_t *out_md) extern int efi_mem_desc_lookup(u64 phys_addr, efi_memory_desc_t *out_md) __weak __alias(__efi_mem_desc_lookup); +EXPORT_SYMBOL_GPL(efi_mem_desc_lookup); /* * Calculate the highest address of an efi memory descriptor. diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile index d23a1b9fed75..2f173391b63d 100644 --- a/drivers/firmware/efi/libstub/Makefile +++ b/drivers/firmware/efi/libstub/Makefile @@ -85,7 +85,6 @@ lib-$(CONFIG_EFI_GENERIC_STUB) += efi-stub.o string.o intrinsics.o systable.o \ lib-$(CONFIG_ARM) += arm32-stub.o lib-$(CONFIG_ARM64) += kaslr.o arm64.o arm64-stub.o smbios.o lib-$(CONFIG_X86) += x86-stub.o smbios.o -lib-$(CONFIG_EFI_MIXED) += x86-mixed.o lib-$(CONFIG_X86_64) += x86-5lvl.o lib-$(CONFIG_RISCV) += kaslr.o riscv.o riscv-stub.o lib-$(CONFIG_LOONGARCH) += loongarch.o loongarch-stub.o diff --git a/drivers/firmware/efi/libstub/x86-5lvl.c b/drivers/firmware/efi/libstub/x86-5lvl.c index 77359e802181..f1c5fb45d5f7 100644 --- a/drivers/firmware/efi/libstub/x86-5lvl.c +++ b/drivers/firmware/efi/libstub/x86-5lvl.c @@ -62,7 +62,7 @@ efi_status_t efi_setup_5level_paging(void) void efi_5level_switch(void) { - bool want_la57 = IS_ENABLED(CONFIG_X86_5LEVEL) && !efi_no5lvl; + bool want_la57 = !efi_no5lvl; bool have_la57 = native_read_cr4() & X86_CR4_LA57; bool need_toggle = want_la57 ^ have_la57; u64 *pgt = (void *)la57_toggle + PAGE_SIZE; diff --git a/drivers/firmware/efi/libstub/x86-mixed.S b/drivers/firmware/efi/libstub/x86-mixed.S deleted file mode 100644 index e04ed99bc449..000000000000 --- a/drivers/firmware/efi/libstub/x86-mixed.S +++ /dev/null @@ -1,253 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Copyright (C) 2014, 2015 Intel Corporation; author Matt Fleming - * - * Early support for invoking 32-bit EFI services from a 64-bit kernel. - * - * Because this thunking occurs before ExitBootServices() we have to - * restore the firmware's 32-bit GDT and IDT before we make EFI service - * calls. - * - * On the plus side, we don't have to worry about mangling 64-bit - * addresses into 32-bits because we're executing with an identity - * mapped pagetable and haven't transitioned to 64-bit virtual addresses - * yet. - */ - -#include <linux/linkage.h> -#include <asm/desc_defs.h> -#include <asm/msr.h> -#include <asm/page_types.h> -#include <asm/pgtable_types.h> -#include <asm/processor-flags.h> -#include <asm/segment.h> - - .text - .code32 -#ifdef CONFIG_EFI_HANDOVER_PROTOCOL -SYM_FUNC_START(efi32_stub_entry) - call 1f -1: popl %ecx - - /* Clear BSS */ - xorl %eax, %eax - leal (_bss - 1b)(%ecx), %edi - leal (_ebss - 1b)(%ecx), %ecx - subl %edi, %ecx - shrl $2, %ecx - cld - rep stosl - - add $0x4, %esp /* Discard return address */ - movl 8(%esp), %ebx /* struct boot_params pointer */ - jmp efi32_startup -SYM_FUNC_END(efi32_stub_entry) -#endif - -/* - * Called using a far call from __efi64_thunk() below, using the x86_64 SysV - * ABI (except for R8/R9 which are inaccessible to 32-bit code - EAX/EBX are - * used instead). EBP+16 points to the arguments passed via the stack. - * - * The first argument (EDI) is a pointer to the boot service or protocol, to - * which the remaining arguments are passed, each truncated to 32 bits. - */ -SYM_FUNC_START_LOCAL(efi_enter32) - /* - * Convert x86-64 SysV ABI params to i386 ABI - */ - pushl 32(%ebp) /* Up to 3 args passed via the stack */ - pushl 24(%ebp) - pushl 16(%ebp) - pushl %ebx /* R9 */ - pushl %eax /* R8 */ - pushl %ecx - pushl %edx - pushl %esi - - /* Disable paging */ - movl %cr0, %eax - btrl $X86_CR0_PG_BIT, %eax - movl %eax, %cr0 - - /* Disable long mode via EFER */ - movl $MSR_EFER, %ecx - rdmsr - btrl $_EFER_LME, %eax - wrmsr - - call *%edi - - /* We must preserve return value */ - movl %eax, %edi - - call efi32_enable_long_mode - - addl $32, %esp - movl %edi, %eax - lret -SYM_FUNC_END(efi_enter32) - - .code64 -SYM_FUNC_START(__efi64_thunk) - push %rbp - movl %esp, %ebp - push %rbx - - /* Move args #5 and #6 into 32-bit accessible registers */ - movl %r8d, %eax - movl %r9d, %ebx - - lcalll *efi32_call(%rip) - - pop %rbx - pop %rbp - RET -SYM_FUNC_END(__efi64_thunk) - - .code32 -SYM_FUNC_START_LOCAL(efi32_enable_long_mode) - movl %cr4, %eax - btsl $(X86_CR4_PAE_BIT), %eax - movl %eax, %cr4 - - movl $MSR_EFER, %ecx - rdmsr - btsl $_EFER_LME, %eax - wrmsr - - /* Disable interrupts - the firmware's IDT does not work in long mode */ - cli - - /* Enable paging */ - movl %cr0, %eax - btsl $X86_CR0_PG_BIT, %eax - movl %eax, %cr0 - ret -SYM_FUNC_END(efi32_enable_long_mode) - -/* - * This is the common EFI stub entry point for mixed mode. It sets up the GDT - * and page tables needed for 64-bit execution, after which it calls the - * common 64-bit EFI entrypoint efi_stub_entry(). - * - * Arguments: 0(%esp) image handle - * 4(%esp) EFI system table pointer - * %ebx struct boot_params pointer (or NULL) - * - * Since this is the point of no return for ordinary execution, no registers - * are considered live except for the function parameters. [Note that the EFI - * stub may still exit and return to the firmware using the Exit() EFI boot - * service.] - */ -SYM_FUNC_START_LOCAL(efi32_startup) - movl %esp, %ebp - - subl $8, %esp - sgdtl (%esp) /* Save GDT descriptor to the stack */ - movl 2(%esp), %esi /* Existing GDT pointer */ - movzwl (%esp), %ecx /* Existing GDT limit */ - inc %ecx /* Existing GDT size */ - andl $~7, %ecx /* Ensure size is multiple of 8 */ - - subl %ecx, %esp /* Allocate new GDT */ - andl $~15, %esp /* Realign the stack */ - movl %esp, %edi /* New GDT address */ - leal 7(%ecx), %eax /* New GDT limit */ - pushw %cx /* Push 64-bit CS (for LJMP below) */ - pushl %edi /* Push new GDT address */ - pushw %ax /* Push new GDT limit */ - - /* Copy GDT to the stack and add a 64-bit code segment at the end */ - movl $GDT_ENTRY(DESC_CODE64, 0, 0xfffff) & 0xffffffff, (%edi,%ecx) - movl $GDT_ENTRY(DESC_CODE64, 0, 0xfffff) >> 32, 4(%edi,%ecx) - shrl $2, %ecx - cld - rep movsl /* Copy the firmware GDT */ - lgdtl (%esp) /* Switch to the new GDT */ - - call 1f -1: pop %edi - - /* Record mixed mode entry */ - movb $0x0, (efi_is64 - 1b)(%edi) - - /* Set up indirect far call to re-enter 32-bit mode */ - leal (efi32_call - 1b)(%edi), %eax - addl %eax, (%eax) - movw %cs, 4(%eax) - - /* Disable paging */ - movl %cr0, %eax - btrl $X86_CR0_PG_BIT, %eax - movl %eax, %cr0 - - /* Set up 1:1 mapping */ - leal (pte - 1b)(%edi), %eax - movl $_PAGE_PRESENT | _PAGE_RW | _PAGE_PSE, %ecx - leal (_PAGE_PRESENT | _PAGE_RW)(%eax), %edx -2: movl %ecx, (%eax) - addl $8, %eax - addl $PMD_SIZE, %ecx - jnc 2b - - movl $PAGE_SIZE, %ecx - .irpc l, 0123 - movl %edx, \l * 8(%eax) - addl %ecx, %edx - .endr - addl %ecx, %eax - movl %edx, (%eax) - movl %eax, %cr3 - - call efi32_enable_long_mode - - /* Set up far jump to 64-bit mode (CS is already on the stack) */ - leal (efi_stub_entry - 1b)(%edi), %eax - movl %eax, 2(%esp) - - movl 0(%ebp), %edi - movl 4(%ebp), %esi - movl %ebx, %edx - ljmpl *2(%esp) -SYM_FUNC_END(efi32_startup) - -/* - * efi_status_t efi32_pe_entry(efi_handle_t image_handle, - * efi_system_table_32_t *sys_table) - */ -SYM_FUNC_START(efi32_pe_entry) - pushl %ebx // save callee-save registers - - /* Check whether the CPU supports long mode */ - movl $0x80000001, %eax // assume extended info support - cpuid - btl $29, %edx // check long mode bit - jnc 1f - leal 8(%esp), %esp // preserve stack alignment - xor %ebx, %ebx // no struct boot_params pointer - jmp efi32_startup // only ESP and EBX remain live -1: movl $0x80000003, %eax // EFI_UNSUPPORTED - popl %ebx - RET -SYM_FUNC_END(efi32_pe_entry) - -#ifdef CONFIG_EFI_HANDOVER_PROTOCOL - .org efi32_stub_entry + 0x200 - .code64 -SYM_FUNC_START_NOALIGN(efi64_stub_entry) - jmp efi_handover_entry -SYM_FUNC_END(efi64_stub_entry) -#endif - - .data - .balign 8 -SYM_DATA_START_LOCAL(efi32_call) - .long efi_enter32 - . - .word 0x0 -SYM_DATA_END(efi32_call) -SYM_DATA(efi_is64, .byte 1) - - .bss - .balign PAGE_SIZE -SYM_DATA_LOCAL(pte, .fill 6 * PAGE_SIZE, 1, 0) diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c index a1ebbe9b73b1..38ca190d4a22 100644 --- a/drivers/firmware/psci/psci.c +++ b/drivers/firmware/psci/psci.c @@ -804,8 +804,10 @@ int __init psci_dt_init(void) np = of_find_matching_node_and_match(NULL, psci_of_match, &matched_np); - if (!np || !of_device_is_available(np)) + if (!np || !of_device_is_available(np)) { + of_node_put(np); return -ENODEV; + } init_fn = (psci_initcall_t)matched_np->data; ret = init_fn(np); diff --git a/drivers/firmware/psci/psci_checker.c b/drivers/firmware/psci/psci_checker.c index b662b7e28b80..df02a4ec3398 100644 --- a/drivers/firmware/psci/psci_checker.c +++ b/drivers/firmware/psci/psci_checker.c @@ -343,7 +343,7 @@ static int suspend_test_thread(void *arg) * later. */ timer_delete(&wakeup_timer); - destroy_timer_on_stack(&wakeup_timer); + timer_destroy_on_stack(&wakeup_timer); if (atomic_dec_return_relaxed(&nb_active_threads) == 0) complete(&suspend_threads_done); diff --git a/drivers/firmware/samsung/exynos-acpm.c b/drivers/firmware/samsung/exynos-acpm.c index a85b2dbdd9f0..15e991b99f5a 100644 --- a/drivers/firmware/samsung/exynos-acpm.c +++ b/drivers/firmware/samsung/exynos-acpm.c @@ -185,6 +185,29 @@ struct acpm_match_data { #define handle_to_acpm_info(h) container_of(h, struct acpm_info, handle) /** + * acpm_get_saved_rx() - get the response if it was already saved. + * @achan: ACPM channel info. + * @xfer: reference to the transfer to get response for. + * @tx_seqnum: xfer TX sequence number. + */ +static void acpm_get_saved_rx(struct acpm_chan *achan, + const struct acpm_xfer *xfer, u32 tx_seqnum) +{ + const struct acpm_rx_data *rx_data = &achan->rx_data[tx_seqnum - 1]; + u32 rx_seqnum; + + if (!rx_data->response) + return; + + rx_seqnum = FIELD_GET(ACPM_PROTOCOL_SEQNUM, rx_data->cmd[0]); + + if (rx_seqnum == tx_seqnum) { + memcpy(xfer->rxd, rx_data->cmd, xfer->rxlen); + clear_bit(rx_seqnum - 1, achan->bitmap_seqnum); + } +} + +/** * acpm_get_rx() - get response from RX queue. * @achan: ACPM channel info. * @xfer: reference to the transfer to get response for. @@ -204,15 +227,16 @@ static int acpm_get_rx(struct acpm_chan *achan, const struct acpm_xfer *xfer) rx_front = readl(achan->rx.front); i = readl(achan->rx.rear); - /* Bail out if RX is empty. */ - if (i == rx_front) + tx_seqnum = FIELD_GET(ACPM_PROTOCOL_SEQNUM, xfer->txd[0]); + + if (i == rx_front) { + acpm_get_saved_rx(achan, xfer, tx_seqnum); return 0; + } base = achan->rx.base; mlen = achan->mlen; - tx_seqnum = FIELD_GET(ACPM_PROTOCOL_SEQNUM, xfer->txd[0]); - /* Drain RX queue. */ do { /* Read RX seqnum. */ @@ -259,16 +283,8 @@ static int acpm_get_rx(struct acpm_chan *achan, const struct acpm_xfer *xfer) * If the response was not in this iteration of the queue, check if the * RX data was previously saved. */ - rx_data = &achan->rx_data[tx_seqnum - 1]; - if (!rx_set && rx_data->response) { - rx_seqnum = FIELD_GET(ACPM_PROTOCOL_SEQNUM, - rx_data->cmd[0]); - - if (rx_seqnum == tx_seqnum) { - memcpy(xfer->rxd, rx_data->cmd, xfer->rxlen); - clear_bit(rx_seqnum - 1, achan->bitmap_seqnum); - } - } + if (!rx_set) + acpm_get_saved_rx(achan, xfer, tx_seqnum); return 0; } diff --git a/drivers/firmware/smccc/kvm_guest.c b/drivers/firmware/smccc/kvm_guest.c index 5767aed25cdc..a123c05cbc9e 100644 --- a/drivers/firmware/smccc/kvm_guest.c +++ b/drivers/firmware/smccc/kvm_guest.c @@ -95,7 +95,7 @@ void __init kvm_arm_target_impl_cpu_init(void) for (i = 0; i < max_cpus; i++) { arm_smccc_1_1_invoke(ARM_SMCCC_VENDOR_HYP_KVM_DISCOVER_IMPL_CPUS_FUNC_ID, - i, &res); + i, 0, 0, &res); if (res.a0 != SMCCC_RET_SUCCESS) { pr_warn("Discovering target implementation CPUs failed\n"); goto mem_free; @@ -103,7 +103,7 @@ void __init kvm_arm_target_impl_cpu_init(void) target[i].midr = res.a1; target[i].revidr = res.a2; target[i].aidr = res.a3; - }; + } if (!cpu_errata_set_target_impl(max_cpus, target)) { pr_warn("Failed to set target implementation CPUs\n"); diff --git a/drivers/firmware/stratix10-svc.c b/drivers/firmware/stratix10-svc.c index 3c52cb73237a..e3f990d888d7 100644 --- a/drivers/firmware/stratix10-svc.c +++ b/drivers/firmware/stratix10-svc.c @@ -1224,22 +1224,28 @@ static int stratix10_svc_drv_probe(struct platform_device *pdev) if (!svc->intel_svc_fcs) { dev_err(dev, "failed to allocate %s device\n", INTEL_FCS); ret = -ENOMEM; - goto err_unregister_dev; + goto err_unregister_rsu_dev; } ret = platform_device_add(svc->intel_svc_fcs); if (ret) { platform_device_put(svc->intel_svc_fcs); - goto err_unregister_dev; + goto err_unregister_rsu_dev; } + ret = of_platform_default_populate(dev_of_node(dev), NULL, dev); + if (ret) + goto err_unregister_fcs_dev; + dev_set_drvdata(dev, svc); pr_info("Intel Service Layer Driver Initialized\n"); return 0; -err_unregister_dev: +err_unregister_fcs_dev: + platform_device_unregister(svc->intel_svc_fcs); +err_unregister_rsu_dev: platform_device_unregister(svc->stratix10_svc_rsu); err_free_kfifo: kfifo_free(&controller->svc_fifo); @@ -1253,6 +1259,8 @@ static void stratix10_svc_drv_remove(struct platform_device *pdev) struct stratix10_svc *svc = dev_get_drvdata(&pdev->dev); struct stratix10_svc_controller *ctrl = platform_get_drvdata(pdev); + of_platform_depopulate(ctrl->dev); + platform_device_unregister(svc->intel_svc_fcs); platform_device_unregister(svc->stratix10_svc_rsu); diff --git a/drivers/firmware/sysfb_simplefb.c b/drivers/firmware/sysfb_simplefb.c index 75a186bf8f8e..592d8a644619 100644 --- a/drivers/firmware/sysfb_simplefb.c +++ b/drivers/firmware/sysfb_simplefb.c @@ -35,36 +35,7 @@ __init bool sysfb_parse_mode(const struct screen_info *si, if (type != VIDEO_TYPE_VLFB && type != VIDEO_TYPE_EFI) return false; - /* - * The meaning of depth and bpp for direct-color formats is - * inconsistent: - * - * - DRM format info specifies depth as the number of color - * bits; including alpha, but not including filler bits. - * - Linux' EFI platform code computes lfb_depth from the - * individual color channels, including the reserved bits. - * - VBE 1.1 defines lfb_depth for XRGB1555 as 16, but later - * versions use 15. - * - On the kernel command line, 'bpp' of 32 is usually - * XRGB8888 including the filler bits, but 15 is XRGB1555 - * not including the filler bit. - * - * It's not easily possible to fix this in struct screen_info, - * as this could break UAPI. The best solution is to compute - * bits_per_pixel from the color bits, reserved bits and - * reported lfb_depth, whichever is highest. In the loop below, - * ignore simplefb formats with alpha bits, as EFI and VESA - * don't specify alpha channels. - */ - if (si->lfb_depth > 8) { - bits_per_pixel = max(max3(si->red_size + si->red_pos, - si->green_size + si->green_pos, - si->blue_size + si->blue_pos), - si->rsvd_size + si->rsvd_pos); - bits_per_pixel = max_t(u32, bits_per_pixel, si->lfb_depth); - } else { - bits_per_pixel = si->lfb_depth; - } + bits_per_pixel = __screen_info_lfb_bits_per_pixel(si); for (i = 0; i < ARRAY_SIZE(formats); ++i) { const struct simplefb_format *f = &formats[i]; |