diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0344-staging-vc-sm-cma-Fix-up-for-64bit-builds.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0344-staging-vc-sm-cma-Fix-up-for-64bit-builds.patch | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0344-staging-vc-sm-cma-Fix-up-for-64bit-builds.patch b/target/linux/brcm2708/patches-4.19/950-0344-staging-vc-sm-cma-Fix-up-for-64bit-builds.patch deleted file mode 100644 index 0ddbb4297e..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0344-staging-vc-sm-cma-Fix-up-for-64bit-builds.patch +++ /dev/null @@ -1,199 +0,0 @@ -From 8da5f5ca322c3b6c5c9055381af9db67f724bdc3 Mon Sep 17 00:00:00 2001 -From: Dave Stevenson <dave.stevenson@raspberrypi.org> -Date: Tue, 29 Jan 2019 16:32:57 +0000 -Subject: [PATCH 344/725] staging: vc-sm-cma: Fix up for 64bit builds - -There were a number of logging lines that were using -inappropriate formatting under 64bit kernels. - -The kernel_id field passed to/from the VPU was being -abused for storing the struct vc_sm_buffer *. -This breaks with 64bit kernels, so change to using an IDR. - -Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> ---- - .../staging/vc04_services/vc-sm-cma/vc_sm.c | 60 +++++++++++++++---- - .../vc04_services/vc-sm-cma/vc_sm_cma_vchi.c | 3 +- - 2 files changed, 48 insertions(+), 15 deletions(-) - ---- a/drivers/staging/vc04_services/vc-sm-cma/vc_sm.c -+++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm.c -@@ -75,6 +75,9 @@ struct sm_state_t { - struct miscdevice dev; - struct sm_instance *sm_handle; /* Handle for videocore service. */ - -+ spinlock_t kernelid_map_lock; /* Spinlock protecting kernelid_map */ -+ struct idr kernelid_map; -+ - struct mutex map_lock; /* Global map lock. */ - struct list_head buffer_list; /* List of buffer. */ - -@@ -97,6 +100,29 @@ static int sm_inited; - - /* ---- Private Functions ------------------------------------------------ */ - -+static int get_kernel_id(struct vc_sm_buffer *buffer) -+{ -+ int handle; -+ -+ spin_lock(&sm_state->kernelid_map_lock); -+ handle = idr_alloc(&sm_state->kernelid_map, buffer, 0, 0, GFP_KERNEL); -+ spin_unlock(&sm_state->kernelid_map_lock); -+ -+ return handle; -+} -+ -+static struct vc_sm_buffer *lookup_kernel_id(int handle) -+{ -+ return idr_find(&sm_state->kernelid_map, handle); -+} -+ -+static void free_kernel_id(int handle) -+{ -+ spin_lock(&sm_state->kernelid_map_lock); -+ idr_remove(&sm_state->kernelid_map, handle); -+ spin_unlock(&sm_state->kernelid_map_lock); -+} -+ - static int vc_sm_cma_seq_file_show(struct seq_file *s, void *v) - { - struct sm_pde_t *sm_pde; -@@ -129,8 +155,7 @@ static int vc_sm_cma_global_state_show(s - if (!sm_state) - return 0; - -- seq_printf(s, "\nVC-ServiceHandle 0x%x\n", -- (unsigned int)sm_state->sm_handle); -+ seq_printf(s, "\nVC-ServiceHandle %p\n", sm_state->sm_handle); - - /* Log all applicable mapping(s). */ - -@@ -145,7 +170,7 @@ static int vc_sm_cma_global_state_show(s - resource); - seq_printf(s, " NAME %s\n", - resource->name); -- seq_printf(s, " SIZE %d\n", -+ seq_printf(s, " SIZE %zu\n", - resource->size); - seq_printf(s, " DMABUF %p\n", - resource->dma_buf); -@@ -181,7 +206,7 @@ static void vc_sm_add_resource(struct vc - list_add(&buffer->global_buffer_list, &sm_state->buffer_list); - mutex_unlock(&sm_state->map_lock); - -- pr_debug("[%s]: added buffer %p (name %s, size %d)\n", -+ pr_debug("[%s]: added buffer %p (name %s, size %zu)\n", - __func__, buffer, buffer->name, buffer->size); - } - -@@ -194,7 +219,7 @@ static void vc_sm_release_resource(struc - mutex_lock(&sm_state->map_lock); - mutex_lock(&buffer->lock); - -- pr_debug("[%s]: buffer %p (name %s, size %d)\n", -+ pr_debug("[%s]: buffer %p (name %s, size %zu)\n", - __func__, buffer, buffer->name, buffer->size); - - if (buffer->vc_handle && buffer->vpu_state == VPU_MAPPED) { -@@ -443,6 +468,7 @@ vc_sm_cma_import_dmabuf_internal(struct - struct vc_sm_import_result result = { }; - struct dma_buf_attachment *attach = NULL; - struct sg_table *sgt = NULL; -+ dma_addr_t dma_addr; - int ret = 0; - int status; - -@@ -478,21 +504,22 @@ vc_sm_cma_import_dmabuf_internal(struct - } - - import.type = VC_SM_ALLOC_NON_CACHED; -- import.addr = (uint32_t)sg_dma_address(sgt->sgl); -+ dma_addr = sg_dma_address(sgt->sgl); -+ import.addr = (uint32_t)dma_addr; - if ((import.addr & 0xC0000000) != 0xC0000000) { -- pr_err("%s: Expecting an uncached alias for dma_addr %08x\n", -- __func__, import.addr); -+ pr_err("%s: Expecting an uncached alias for dma_addr %pad\n", -+ __func__, &dma_addr); - import.addr |= 0xC0000000; - } - import.size = sg_dma_len(sgt->sgl); - import.allocator = current->tgid; -- import.kernel_id = (uint32_t)buffer; //FIXME: 64 bit support needed. -+ import.kernel_id = get_kernel_id(buffer); - - memcpy(import.name, VC_SM_RESOURCE_NAME_DEFAULT, - sizeof(VC_SM_RESOURCE_NAME_DEFAULT)); - -- pr_debug("[%s]: attempt to import \"%s\" data - type %u, addr %p, size %u\n", -- __func__, import.name, import.type, (void *)import.addr, -+ pr_debug("[%s]: attempt to import \"%s\" data - type %u, addr %pad, size %u\n", -+ __func__, import.name, import.type, &dma_addr, - import.size); - - /* Allocate the videocore buffer. */ -@@ -527,7 +554,7 @@ vc_sm_cma_import_dmabuf_internal(struct - - buffer->attach = attach; - buffer->sgt = sgt; -- buffer->dma_addr = sg_dma_address(sgt->sgl); -+ buffer->dma_addr = dma_addr; - buffer->in_use = 1; - - /* -@@ -559,6 +586,7 @@ error: - vc_sm_cma_vchi_free(sm_state->sm_handle, &free, - &sm_state->int_trans_id); - } -+ free_kernel_id(import.kernel_id); - kfree(buffer); - if (sgt) - dma_buf_unmap_attachment(attach, sgt, DMA_BIDIRECTIONAL); -@@ -586,7 +614,7 @@ vc_sm_vpu_event(struct sm_instance *inst - { - struct vc_sm_released *release = (struct vc_sm_released *)reply; - struct vc_sm_buffer *buffer = -- (struct vc_sm_buffer *)release->kernel_id; -+ lookup_kernel_id(release->kernel_id); - - /* - * FIXME: Need to check buffer is still valid and allocated -@@ -599,6 +627,7 @@ vc_sm_vpu_event(struct sm_instance *inst - buffer->vc_handle = 0; - buffer->vpu_state = VPU_NOT_MAPPED; - mutex_unlock(&buffer->lock); -+ free_kernel_id(release->kernel_id); - - vc_sm_release_resource(buffer, 0); - } -@@ -711,6 +740,9 @@ static int bcm2835_vc_sm_cma_probe(struc - sm_state->pdev = pdev; - mutex_init(&sm_state->map_lock); - -+ spin_lock_init(&sm_state->kernelid_map_lock); -+ idr_init_base(&sm_state->kernelid_map, 1); -+ - pdev->dev.dma_parms = devm_kzalloc(&pdev->dev, - sizeof(*pdev->dev.dma_parms), - GFP_KERNEL); -@@ -735,6 +767,8 @@ static int bcm2835_vc_sm_cma_remove(stru - /* Stop the videocore shared memory service. */ - vc_sm_cma_vchi_stop(&sm_state->sm_handle); - -+ idr_destroy(&sm_state->kernelid_map); -+ - /* Free the memory for the state structure. */ - mutex_destroy(&sm_state->map_lock); - kfree(sm_state); ---- a/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.c -+++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.c -@@ -356,8 +356,7 @@ struct sm_instance *vc_sm_cma_vchi_init( - set_user_nice(instance->io_thread, -10); - wake_up_process(instance->io_thread); - -- pr_debug("%s: success - instance 0x%x", __func__, -- (unsigned int)instance); -+ pr_debug("%s: success - instance %p", __func__, instance); - return instance; - - err_close_services: |