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path: root/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c
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Diffstat (limited to 'drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c')
-rw-r--r--drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c149
1 files changed, 69 insertions, 80 deletions
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c b/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c
index 585b7b0ed8ec..1682271c2453 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c
@@ -22,16 +22,64 @@
#include "s5p_mfc_opr.h"
#include "s5p_mfc_pm.h"
-static void *s5p_mfc_bitproc_buf;
-static size_t s5p_mfc_bitproc_phys;
-static unsigned char *s5p_mfc_bitproc_virt;
+/* Allocate memory for firmware */
+int s5p_mfc_alloc_firmware(struct s5p_mfc_dev *dev)
+{
+ void *bank2_virt;
+ dma_addr_t bank2_dma_addr;
+
+ dev->fw_size = dev->variant->buf_size->fw;
+
+ if (dev->fw_virt_addr) {
+ mfc_err("Attempting to allocate firmware when it seems that it is already loaded\n");
+ return -ENOMEM;
+ }
+
+ dev->fw_virt_addr = dma_alloc_coherent(dev->mem_dev_l, dev->fw_size,
+ &dev->bank1, GFP_KERNEL);
+
+ if (IS_ERR(dev->fw_virt_addr)) {
+ dev->fw_virt_addr = NULL;
+ mfc_err("Allocating bitprocessor buffer failed\n");
+ return -ENOMEM;
+ }
+
+ dev->bank1 = dev->bank1;
+
+ if (HAS_PORTNUM(dev) && IS_TWOPORT(dev)) {
+ bank2_virt = dma_alloc_coherent(dev->mem_dev_r, 1 << MFC_BASE_ALIGN_ORDER,
+ &bank2_dma_addr, GFP_KERNEL);
+
+ if (IS_ERR(dev->fw_virt_addr)) {
+ mfc_err("Allocating bank2 base failed\n");
+ dma_free_coherent(dev->mem_dev_l, dev->fw_size,
+ dev->fw_virt_addr, dev->bank1);
+ dev->fw_virt_addr = NULL;
+ return -ENOMEM;
+ }
+
+ /* Valid buffers passed to MFC encoder with LAST_FRAME command
+ * should not have address of bank2 - MFC will treat it as a null frame.
+ * To avoid such situation we set bank2 address below the pool address.
+ */
+ dev->bank2 = bank2_dma_addr - (1 << MFC_BASE_ALIGN_ORDER);
+
+ dma_free_coherent(dev->mem_dev_r, 1 << MFC_BASE_ALIGN_ORDER,
+ bank2_virt, bank2_dma_addr);
+
+ } else {
+ /* In this case bank2 can point to the same address as bank1.
+ * Firmware will always occupy the beggining of this area so it is
+ * impossible having a video frame buffer with zero address. */
+ dev->bank2 = dev->bank1;
+ }
+ return 0;
+}
-/* Allocate and load firmware */
-int s5p_mfc_alloc_and_load_firmware(struct s5p_mfc_dev *dev)
+/* Load firmware */
+int s5p_mfc_load_firmware(struct s5p_mfc_dev *dev)
{
struct firmware *fw_blob;
- size_t bank2_base_phys;
- void *b_base;
int err;
/* Firmare has to be present as a separate file or compiled
@@ -44,77 +92,17 @@ int s5p_mfc_alloc_and_load_firmware(struct s5p_mfc_dev *dev)
mfc_err("Firmware is not present in the /lib/firmware directory nor compiled in kernel\n");
return -EINVAL;
}
- dev->fw_size = dev->variant->buf_size->fw;
if (fw_blob->size > dev->fw_size) {
mfc_err("MFC firmware is too big to be loaded\n");
release_firmware(fw_blob);
return -ENOMEM;
}
- if (s5p_mfc_bitproc_buf) {
- mfc_err("Attempting to allocate firmware when it seems that it is already loaded\n");
- release_firmware(fw_blob);
- return -ENOMEM;
- }
- s5p_mfc_bitproc_buf = vb2_dma_contig_memops.alloc(
- dev->alloc_ctx[MFC_BANK1_ALLOC_CTX], dev->fw_size);
- if (IS_ERR(s5p_mfc_bitproc_buf)) {
- s5p_mfc_bitproc_buf = NULL;
- mfc_err("Allocating bitprocessor buffer failed\n");
+ if (!dev->fw_virt_addr) {
+ mfc_err("MFC firmware is not allocated\n");
release_firmware(fw_blob);
- return -ENOMEM;
- }
- s5p_mfc_bitproc_phys = s5p_mfc_mem_cookie(
- dev->alloc_ctx[MFC_BANK1_ALLOC_CTX], s5p_mfc_bitproc_buf);
- if (s5p_mfc_bitproc_phys & ((1 << MFC_BASE_ALIGN_ORDER) - 1)) {
- mfc_err("The base memory for bank 1 is not aligned to 128KB\n");
- vb2_dma_contig_memops.put(s5p_mfc_bitproc_buf);
- s5p_mfc_bitproc_phys = 0;
- s5p_mfc_bitproc_buf = NULL;
- release_firmware(fw_blob);
- return -EIO;
- }
- s5p_mfc_bitproc_virt = vb2_dma_contig_memops.vaddr(s5p_mfc_bitproc_buf);
- if (!s5p_mfc_bitproc_virt) {
- mfc_err("Bitprocessor memory remap failed\n");
- vb2_dma_contig_memops.put(s5p_mfc_bitproc_buf);
- s5p_mfc_bitproc_phys = 0;
- s5p_mfc_bitproc_buf = NULL;
- release_firmware(fw_blob);
- return -EIO;
- }
- dev->bank1 = s5p_mfc_bitproc_phys;
- if (HAS_PORTNUM(dev) && IS_TWOPORT(dev)) {
- b_base = vb2_dma_contig_memops.alloc(
- dev->alloc_ctx[MFC_BANK2_ALLOC_CTX],
- 1 << MFC_BASE_ALIGN_ORDER);
- if (IS_ERR(b_base)) {
- vb2_dma_contig_memops.put(s5p_mfc_bitproc_buf);
- s5p_mfc_bitproc_phys = 0;
- s5p_mfc_bitproc_buf = NULL;
- mfc_err("Allocating bank2 base failed\n");
- release_firmware(fw_blob);
- return -ENOMEM;
- }
- bank2_base_phys = s5p_mfc_mem_cookie(
- dev->alloc_ctx[MFC_BANK2_ALLOC_CTX], b_base);
- vb2_dma_contig_memops.put(b_base);
- if (bank2_base_phys & ((1 << MFC_BASE_ALIGN_ORDER) - 1)) {
- mfc_err("The base memory for bank 2 is not aligned to 128KB\n");
- vb2_dma_contig_memops.put(s5p_mfc_bitproc_buf);
- s5p_mfc_bitproc_phys = 0;
- s5p_mfc_bitproc_buf = NULL;
- release_firmware(fw_blob);
- return -EIO;
- }
- /* Valid buffers passed to MFC encoder with LAST_FRAME command
- * should not have address of bank2 - MFC will treat it as a null frame.
- * To avoid such situation we set bank2 address below the pool address.
- */
- dev->bank2 = bank2_base_phys - (1 << MFC_BASE_ALIGN_ORDER);
- } else {
- dev->bank2 = dev->bank1;
+ return -EINVAL;
}
- memcpy(s5p_mfc_bitproc_virt, fw_blob->data, fw_blob->size);
+ memcpy(dev->fw_virt_addr, fw_blob->data, fw_blob->size);
wmb();
release_firmware(fw_blob);
mfc_debug_leave();
@@ -142,12 +130,12 @@ int s5p_mfc_reload_firmware(struct s5p_mfc_dev *dev)
release_firmware(fw_blob);
return -ENOMEM;
}
- if (s5p_mfc_bitproc_buf == NULL || s5p_mfc_bitproc_phys == 0) {
- mfc_err("MFC firmware is not allocated or was not mapped correctly\n");
+ if (dev->fw_virt_addr) {
+ mfc_err("MFC firmware is not allocated\n");
release_firmware(fw_blob);
return -EINVAL;
}
- memcpy(s5p_mfc_bitproc_virt, fw_blob->data, fw_blob->size);
+ memcpy(dev->fw_virt_addr, fw_blob->data, fw_blob->size);
wmb();
release_firmware(fw_blob);
mfc_debug_leave();
@@ -159,12 +147,11 @@ int s5p_mfc_release_firmware(struct s5p_mfc_dev *dev)
{
/* Before calling this function one has to make sure
* that MFC is no longer processing */
- if (!s5p_mfc_bitproc_buf)
+ if (!dev->fw_virt_addr)
return -EINVAL;
- vb2_dma_contig_memops.put(s5p_mfc_bitproc_buf);
- s5p_mfc_bitproc_virt = NULL;
- s5p_mfc_bitproc_phys = 0;
- s5p_mfc_bitproc_buf = NULL;
+ dma_free_coherent(dev->mem_dev_l, dev->fw_size, dev->fw_virt_addr,
+ dev->bank1);
+ dev->fw_virt_addr = NULL;
return 0;
}
@@ -257,8 +244,10 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev)
int ret;
mfc_debug_enter();
- if (!s5p_mfc_bitproc_buf)
+ if (!dev->fw_virt_addr) {
+ mfc_err("Firmware memory is not allocated.\n");
return -EINVAL;
+ }
/* 0. MFC reset */
mfc_debug(2, "MFC reset..\n");

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